Most hormone concentrations are controled by ___feedback mechanisms but oxytocin is controlled by ____ feedback mechanisms
a. -, +
b. +,-
c. neural, -
d. -, noMost hormone concentrations are controled by ___feedback mechanisms but oxytocin is controlled by ____...?
most hormones are controlled by negative feedback ..the only positive feedback is the LH and estrogen during ovulation ...but since there's no negative and negative in the option ..the best is to go with A......Most hormone concentrations are controled by ___feedback mechanisms but oxytocin is controlled by ____...?
a. -, +
oxytocin is released during labor for the contractions of the uterus.
definitely a -,+
Monday, January 18, 2010
Name the type of feedback in which the thing that is controlled oscillates around a set-point.?
a) positive feedback
b) negative feedback
c) child birth
d) physiologyName the type of feedback in which the thing that is controlled oscillates around a set-point.?
b) negative feedback
Positive feedback would cause the thing being controlled to increase.
b) negative feedback
c) child birth
d) physiologyName the type of feedback in which the thing that is controlled oscillates around a set-point.?
b) negative feedback
Positive feedback would cause the thing being controlled to increase.
Most hormone concentrations are controlled by------feedback mechanisms, but oxytocin is controlled by ----feed
mechanisms. a. -,+ b. +,- c. neural,-- d. -,noMost hormone concentrations are controlled by------feedback mechanisms, but oxytocin is controlled by ----feed
Most hormone concentrations are controlled by negative feedback, but oxytocin is contolled by positive feedback.eyeshadow
Most hormone concentrations are controlled by negative feedback, but oxytocin is contolled by positive feedback.
Looking for feedback on the Carve Wright, computer controlled carving machine?
You have to be more specific in your question. What exactly are you asking for? Provide some more details %26amp; you will get more answers.
Anyone who has used Paxil to control anxiety... Feedback please?
Did it help? Did it not work? How were the side effects? Were you able to ween off of it fine? After you quit did you start having anxiety problems again or did it help you long term?
Anything additional please add.
I've always been sort of anti-drugs/pills when it comes to all these pills on the market, but my anxiety has gotten so severe that pills cant make my life any worse if you know what I mean. So I'm currently debating Paxil, I was told by my doctor after I explained this to him, that Paxil has hardly any side effects and hes never had a patient thats had a bad reaction to it.
And please, don't respond unless you've taken it, or known someone that takes/taken it. Thx :)Anyone who has used Paxil to control anxiety... Feedback please?
Hi,
Both my sister and I were put on Paxil in high school for anxiety and depression. And we both got off of it as soon as possible.
For me, it did make me feel ';foggy'; all the time, as well as dizzy or lightheaded and just generally ';blah.'; I was 14 when I started taking it and I was on it for about a year before switching to another med. I remember after being on it for a month or two, I was at the movie theater with some friends and I was telling them I didn't feel right because I was on this medication called Paxil. And this lady sitting in the row in front of me turned around and said ';Did you say Paxil? I'm sorry to interrupt, but I was on that for years and it was a nightmare. Get off it as soon as possible and switch to something else.'; The lady's husband was nodding his head in agreement and it scared me so much I asked to switch meds. My mom and doctor said to ';give it time,'; so I did, but I never found relief from it. There's no medication in the world that will ';fix'; everything. Once you come off a medication, you will be exactly the same as before unless you've changed other things (learned new coping skills for your anxiety, dealt with any underlying issues, etc.). As for weening off, I don't really remember the process except that I felt like total crap during it. Paxil can cause really uncomfortable flu-like symptoms. I remember the movie theater lady telling me she was sick in every way for several weeks while trying to come off.
Paxil causes many side effects for many people. I ended up on a huge mix of meds over the next few years (the one that stuck was Prozac and Zyprexa) and really never felt ';right.'; I finally got off everything about 5 years ago and have never felt better. I know that's not the case for everyone, but I found that taking the meds while in rigorous therapy was the answer. Eventually we have to learn to cope with our anxiety without needing medication. It just makes life easier. Unless you want to be on meds your whole life... My sister has ended up on a horribly debilitating cocktail of meds because she refuses to deal with anything in therapy. She's currently on high doses of Prozac, Wellbutrin, Lamictal, Abilify, and Provigil. She is literally a shell of her former self, like a walking zombie. It's really sad.
I'm not trying to scare you! Sorry! I just hope you seek help with a therapist as well, not just a psychiatrist. I hope you find some relief over the next few years, hang in there...Anyone who has used Paxil to control anxiety... Feedback please?
I took paxil for depression. It worked very good with few side effects. The problem I had while taking it was the inability to ejaculate. It took a long time to achieve orgasm or not at all. If you do stop taking the drug it is recommended to gradual reduce to dose and not stop it suddenly.
After being in and out of rehab several times I have found paxil to be the best for me but ask a dr cause I don`t know anything
Anything additional please add.
I've always been sort of anti-drugs/pills when it comes to all these pills on the market, but my anxiety has gotten so severe that pills cant make my life any worse if you know what I mean. So I'm currently debating Paxil, I was told by my doctor after I explained this to him, that Paxil has hardly any side effects and hes never had a patient thats had a bad reaction to it.
And please, don't respond unless you've taken it, or known someone that takes/taken it. Thx :)Anyone who has used Paxil to control anxiety... Feedback please?
Hi,
Both my sister and I were put on Paxil in high school for anxiety and depression. And we both got off of it as soon as possible.
For me, it did make me feel ';foggy'; all the time, as well as dizzy or lightheaded and just generally ';blah.'; I was 14 when I started taking it and I was on it for about a year before switching to another med. I remember after being on it for a month or two, I was at the movie theater with some friends and I was telling them I didn't feel right because I was on this medication called Paxil. And this lady sitting in the row in front of me turned around and said ';Did you say Paxil? I'm sorry to interrupt, but I was on that for years and it was a nightmare. Get off it as soon as possible and switch to something else.'; The lady's husband was nodding his head in agreement and it scared me so much I asked to switch meds. My mom and doctor said to ';give it time,'; so I did, but I never found relief from it. There's no medication in the world that will ';fix'; everything. Once you come off a medication, you will be exactly the same as before unless you've changed other things (learned new coping skills for your anxiety, dealt with any underlying issues, etc.). As for weening off, I don't really remember the process except that I felt like total crap during it. Paxil can cause really uncomfortable flu-like symptoms. I remember the movie theater lady telling me she was sick in every way for several weeks while trying to come off.
Paxil causes many side effects for many people. I ended up on a huge mix of meds over the next few years (the one that stuck was Prozac and Zyprexa) and really never felt ';right.'; I finally got off everything about 5 years ago and have never felt better. I know that's not the case for everyone, but I found that taking the meds while in rigorous therapy was the answer. Eventually we have to learn to cope with our anxiety without needing medication. It just makes life easier. Unless you want to be on meds your whole life... My sister has ended up on a horribly debilitating cocktail of meds because she refuses to deal with anything in therapy. She's currently on high doses of Prozac, Wellbutrin, Lamictal, Abilify, and Provigil. She is literally a shell of her former self, like a walking zombie. It's really sad.
I'm not trying to scare you! Sorry! I just hope you seek help with a therapist as well, not just a psychiatrist. I hope you find some relief over the next few years, hang in there...Anyone who has used Paxil to control anxiety... Feedback please?
I took paxil for depression. It worked very good with few side effects. The problem I had while taking it was the inability to ejaculate. It took a long time to achieve orgasm or not at all. If you do stop taking the drug it is recommended to gradual reduce to dose and not stop it suddenly.
After being in and out of rehab several times I have found paxil to be the best for me but ask a dr cause I don`t know anything
Antagonistic hormones that paticipate in negative feedback system; control blood Ca+2...?
antagonistic hormones that paticipate in negative feedback system; control blood Ca+2. Which of these hormones is it?
a. epinephrine, norepinephrine
b. OT, PRL
c. FSH, LH
d. insulin, glucagon
e. PTH, CTAntagonistic hormones that paticipate in negative feedback system; control blood Ca+2...?
The answer is E.
1. Parathyroid Hormone (PTH) raises blood calcium levels.
2. Calcitonin (CT) lowers blood calcium levels.
a. epinephrine, norepinephrine
b. OT, PRL
c. FSH, LH
d. insulin, glucagon
e. PTH, CTAntagonistic hormones that paticipate in negative feedback system; control blood Ca+2...?
The answer is E.
1. Parathyroid Hormone (PTH) raises blood calcium levels.
2. Calcitonin (CT) lowers blood calcium levels.
Which of the following hormones is controlled by positive feedback?
a) oxytocin
b) testosterone
c) progesterone
d) follicle-stimulating hormone (FSH)Which of the following hormones is controlled by positive feedback?
Oxytocin. It stimulates the uterine contractions, when there are more contractions, the more oxytocin is released, and so on until the baby is finally delivered.
b) testosterone
c) progesterone
d) follicle-stimulating hormone (FSH)Which of the following hormones is controlled by positive feedback?
Oxytocin. It stimulates the uterine contractions, when there are more contractions, the more oxytocin is released, and so on until the baby is finally delivered.
Controlling Feedback on Guitar Amp?
I have been having loud piercing feedback, not the good kind of feedback with my Fender Telecaster Deluxe ReIssue, would replacing the Humbucker pickups or adjusting the pole pieces help? I have tried standing further away and my volume on my guitar and on the amp is set pretty lower, at like 1 or 1 1/2 on the amp and maybe half way up on the guitar.
The amp is a Carvin Valve Master Tube Amp 50/100 watt Amp.
What should I do, I dont know if it is the amp or the guitar?Controlling Feedback on Guitar Amp?
It sounds like the guitar is going what they call microphonic. It is a condition in which one of the pickups is going out or has issues. If you put your hand over the pickup and the sound stops you know you have your culprit. If that is the case you need to replace the pickup with one that is equal or better....and your shreik will go away.Controlling Feedback on Guitar Amp?
It may be the Cord going from the Amp to the Guitar has a short in it. Or there is a loose connection in the jack of the Amp itself or the Guitar.
i think the best option is to try the guitar in a other amp as well as try other guitars in that amp.. that way you can find the problem.. are you facing the guitar toward the speakers ? that will cause feedback like that.
The amp is a Carvin Valve Master Tube Amp 50/100 watt Amp.
What should I do, I dont know if it is the amp or the guitar?Controlling Feedback on Guitar Amp?
It sounds like the guitar is going what they call microphonic. It is a condition in which one of the pickups is going out or has issues. If you put your hand over the pickup and the sound stops you know you have your culprit. If that is the case you need to replace the pickup with one that is equal or better....and your shreik will go away.Controlling Feedback on Guitar Amp?
It may be the Cord going from the Amp to the Guitar has a short in it. Or there is a loose connection in the jack of the Amp itself or the Guitar.
i think the best option is to try the guitar in a other amp as well as try other guitars in that amp.. that way you can find the problem.. are you facing the guitar toward the speakers ? that will cause feedback like that.
Why does controlling body temperature involve negative feedback?
Very confused by this question... negative feedback?!Why does controlling body temperature involve negative feedback?
Negative feedback in the body is some unpleasant feeling. By feeling uncomfortable you are likely to remedy the situation. Seek warmth or cool off.Why does controlling body temperature involve negative feedback?
HEHE you have the same name as me!!
Negative feedback means that as one thing changes in one direction, another changes in the opposite direction. So, as one thing goes up, it causes something else to go down.
Consider the hormone thyroxin which is produced by the thyroid gland. Thyroxin effects the rate of metabolism.
To stimulate the thyroid gland to make thyroxin, an important gland that is attached to the brain, the pituitary gland (real name is the hypophysis) releases a hormone to stimulate the thyroid. That hormone is called Thyroid Stimulating Hormone ... abbreviated THS. As THS goes up, so does the production of thyroxin.
However, thyroxin has the opposite effect on the pituitary and is, therefore, called a negative feedback. Thyroxin causes the pituitary to STOP (or slow down) the production of THS.
Without THS, the thyroid stops or slows its production of thyroxin.
Without thyroxin, there is no message to the pituitary to stop making THS and the pituitary will, therefore, START to make THS.
So, now the thyroid begins to make THS and the whole cycle starts over. Thyroxin is a negative feedback to the pituitary.
This negative feedback system keeps the production of substances (in my example it is the production of tyroxin) in balance.
Here is a summary of what was presented:
As substance #1 goes up, substance #2 goes up.
As substance #2 goes up, substance #1 goes down.
As substance #1 goes down, substance #2 goes down.
As substance #2 goes down, substance #1 goes up so, there is negative feedback.
think thermostat - theyre essentially homologouseyeshadow
Negative feedback in the body is some unpleasant feeling. By feeling uncomfortable you are likely to remedy the situation. Seek warmth or cool off.Why does controlling body temperature involve negative feedback?
HEHE you have the same name as me!!
Negative feedback means that as one thing changes in one direction, another changes in the opposite direction. So, as one thing goes up, it causes something else to go down.
Consider the hormone thyroxin which is produced by the thyroid gland. Thyroxin effects the rate of metabolism.
To stimulate the thyroid gland to make thyroxin, an important gland that is attached to the brain, the pituitary gland (real name is the hypophysis) releases a hormone to stimulate the thyroid. That hormone is called Thyroid Stimulating Hormone ... abbreviated THS. As THS goes up, so does the production of thyroxin.
However, thyroxin has the opposite effect on the pituitary and is, therefore, called a negative feedback. Thyroxin causes the pituitary to STOP (or slow down) the production of THS.
Without THS, the thyroid stops or slows its production of thyroxin.
Without thyroxin, there is no message to the pituitary to stop making THS and the pituitary will, therefore, START to make THS.
So, now the thyroid begins to make THS and the whole cycle starts over. Thyroxin is a negative feedback to the pituitary.
This negative feedback system keeps the production of substances (in my example it is the production of tyroxin) in balance.
Here is a summary of what was presented:
As substance #1 goes up, substance #2 goes up.
As substance #2 goes up, substance #1 goes down.
As substance #1 goes down, substance #2 goes down.
As substance #2 goes down, substance #1 goes up so, there is negative feedback.
think thermostat - theyre essentially homologous
Controlling temperature involves negative feedback. Explain why?
LOL this is in my revision guide for GCSE, I think I know y, but I don't know if it is a stupid answer. Does anyone have any ideas? Thank-you! xxxControlling temperature involves negative feedback. Explain why?
OMG i keep on coming across your questions!!! (CHANGE YOUR USERNAME TO SOMETHING THAT I WON'T RECOGNISE!!!!)
I'd go to this page if i were you: http://answers.yahoo.com/question/index;_ylt=Ao_EAhZliqTFlhgFc4oAk.Xsy6IX;_ylv=3?qid=20071123100553AAqLaKn (i was confuzzled by the same question!) aaha love your one and only chicken :P
OMG i keep on coming across your questions!!! (CHANGE YOUR USERNAME TO SOMETHING THAT I WON'T RECOGNISE!!!!)
I'd go to this page if i were you: http://answers.yahoo.com/question/index;_ylt=Ao_EAhZliqTFlhgFc4oAk.Xsy6IX;_ylv=3?qid=20071123100553AAqLaKn (i was confuzzled by the same question!) aaha love your one and only chicken :P
Saturday, January 16, 2010
Which among the following is not a homeostatic parameter that is controlled by feedback processes in the body?
a) pH
b) temperature
c) glucose
d) all of the aboveWhich among the following is not a homeostatic parameter that is controlled by feedback processes in the body?
Answer: pH
The human body controls fluids to sustain life properties like temperature and the concentrations of nutrients as glucose, oxygen and wastes, such as carbon dioxide.Which among the following is not a homeostatic parameter that is controlled by feedback processes in the body?
Temperature
none of the above..All are controlled by feedback processes in the body.
pH
b) temperature
c) glucose
d) all of the aboveWhich among the following is not a homeostatic parameter that is controlled by feedback processes in the body?
Answer: pH
The human body controls fluids to sustain life properties like temperature and the concentrations of nutrients as glucose, oxygen and wastes, such as carbon dioxide.Which among the following is not a homeostatic parameter that is controlled by feedback processes in the body?
Temperature
none of the above..All are controlled by feedback processes in the body.
pH
Which birth control method is right for me. I'm on antidepressants! please give your feedback!?
I sent my doctor a message about this too, but I want opinion from other women like me. Anyway I'm on prozac and I want to be on birth control. I already have a son and do not want more kids for years. Is the birth control shot good? I'm considering that. or the IUD. I don't like the birth control pill because I have trouble remembering to take it and I even forget to take my prozac sometimes! So who here has had the shot? or the IUD? have you been on medication with it as well?Which birth control method is right for me. I'm on antidepressants! please give your feedback!?
There is a skin patch available now, that might work for convenience. The shot is also good. If you want to eventually have another child, I would steer away from IUD. If you don't ever want to have another child, I would suggest tubal ligation.Which birth control method is right for me. I'm on antidepressants! please give your feedback!?
tubes tied OR abstinence
There is a skin patch available now, that might work for convenience. The shot is also good. If you want to eventually have another child, I would steer away from IUD. If you don't ever want to have another child, I would suggest tubal ligation.Which birth control method is right for me. I'm on antidepressants! please give your feedback!?
tubes tied OR abstinence
Who out there uses an IUD for birth control? i'm considering using one and i'm just looking for feedback.
I've had one for 5 years now ,with no worriesWho out there uses an IUD for birth control? i'm considering using one and i'm just looking for feedback.
I used one for years. They can be good, but also a pain - literally. My husband could feel that nasty little string they leave hanging into the vagina. One time I got pregnant with one in and lost the baby (we had better luck later though ; ). Another time it got embedded and I had to have a D and C to get it out. I don't think they're too popular any more, and I guess you can see why.Who out there uses an IUD for birth control? i'm considering using one and i'm just looking for feedback.
dont do it i know some one who got theirs enbeded in their uterious,she had to have imeadeit surgry!
you can find info about it
on healthboards.com
I used one for years. They can be good, but also a pain - literally. My husband could feel that nasty little string they leave hanging into the vagina. One time I got pregnant with one in and lost the baby (we had better luck later though ; ). Another time it got embedded and I had to have a D and C to get it out. I don't think they're too popular any more, and I guess you can see why.Who out there uses an IUD for birth control? i'm considering using one and i'm just looking for feedback.
dont do it i know some one who got theirs enbeded in their uterious,she had to have imeadeit surgry!
you can find info about it
on healthboards.com
Determine whether the following is most likely to be controlled by a positive/negative feedback mechanism?
(A) The level of carbon dioxide (CO2) in the blood
(B) Blood clotting (+)
(C) the level of lutenizing hormone in females
(D) the level of thyroid hormone found in the blood
B is a positive (+) feedback responseDetermine whether the following is most likely to be controlled by a positive/negative feedback mechanism?
B is positive, all the rest are negative.
(B) Blood clotting (+)
(C) the level of lutenizing hormone in females
(D) the level of thyroid hormone found in the blood
B is a positive (+) feedback responseDetermine whether the following is most likely to be controlled by a positive/negative feedback mechanism?
B is positive, all the rest are negative.
I just made this poem i was wondering if i can get some feedback its called Eyes in Control?
Eyes in control......
In her eyes I stare
So ever inviting do I dare?
I wanted approach her, she's something rare
When she move her lips
Its heaven 2 my ears but I don't hear ****
Got lost just staring at her feeling like I was in a maze
Heart beating faster like a Nascar but gotta stay on pace
Im the shoe, she's my lace
Can't walk without her if she's not in place
She ask if she lives in my heart
I said nah then she said are we still far apart?
I said its cause u live in my head and that's why I think so hardI just made this poem i was wondering if i can get some feedback its called Eyes in Control?
not very poetic. there's no order or structure if this is free verse, it's not well thought. (sorry honest opinion)eyeshadow
In her eyes I stare
So ever inviting do I dare?
I wanted approach her, she's something rare
When she move her lips
Its heaven 2 my ears but I don't hear ****
Got lost just staring at her feeling like I was in a maze
Heart beating faster like a Nascar but gotta stay on pace
Im the shoe, she's my lace
Can't walk without her if she's not in place
She ask if she lives in my heart
I said nah then she said are we still far apart?
I said its cause u live in my head and that's why I think so hardI just made this poem i was wondering if i can get some feedback its called Eyes in Control?
not very poetic. there's no order or structure if this is free verse, it's not well thought. (sorry honest opinion)
Explain the negative feedback system by which the secretion of thyroxin from the thyroid gland is controlled?
Construct a flow diagram and/or summarize the negative feedback system by which the secretion of thyroxine from the thyroid gland is controlled.
this is a question on my homework that i have no clue how to answer. can someone help me please?Explain the negative feedback system by which the secretion of thyroxin from the thyroid gland is controlled?
The thyroid gland secretes thyroxin (which controls the metabolic rate) into the bloodstream. Falling levels of thyroxin stimulate receptors in the brain to signal the hypothalamus to release a hormone (TRH - thyroid releasing hormone) that acts on the pituitary gland to release thyroid-stimulating hormone (TSH) into the blood. TSH acts on the thyroid, causing it to increase production of thyroxin.
Once the levels of thyroxin are restored these levels no longer stimulate the receptors in the brain/hypothalamus and so no more TSH is released.
Hypothalamus-%26gt;TRH-%26gt;Anterior lobe of Pituitary-%26gt;TSH-%26gt;Thyroid-%26gt;Thyroxin.
When thyroxin levels are low the whole sequence above takes place. When thyroxine levels are ';normal'; the thyroxine inhibits the release of TRH %26amp; TSH = negative feedback.
http://arbl.cvmbs.colostate.edu/hbooks/p鈥?/a>
this is a question on my homework that i have no clue how to answer. can someone help me please?Explain the negative feedback system by which the secretion of thyroxin from the thyroid gland is controlled?
The thyroid gland secretes thyroxin (which controls the metabolic rate) into the bloodstream. Falling levels of thyroxin stimulate receptors in the brain to signal the hypothalamus to release a hormone (TRH - thyroid releasing hormone) that acts on the pituitary gland to release thyroid-stimulating hormone (TSH) into the blood. TSH acts on the thyroid, causing it to increase production of thyroxin.
Once the levels of thyroxin are restored these levels no longer stimulate the receptors in the brain/hypothalamus and so no more TSH is released.
Hypothalamus-%26gt;TRH-%26gt;Anterior lobe of Pituitary-%26gt;TSH-%26gt;Thyroid-%26gt;Thyroxin.
When thyroxin levels are low the whole sequence above takes place. When thyroxine levels are ';normal'; the thyroxine inhibits the release of TRH %26amp; TSH = negative feedback.
http://arbl.cvmbs.colostate.edu/hbooks/p鈥?/a>
Key reactions that occur early in glycolysis and the Krebs Cycle can be controlled by feedback inhibition?
because these reactions are catalyzed by enzymes with a regulatory allosteric site that is the same shape as:
a) ATP
b) NAD +
c) ADP
d) NADHKey reactions that occur early in glycolysis and the Krebs Cycle can be controlled by feedback inhibition?
a... Phosphofructokinase is the most important control element in glycolysis. High levels of ATP allosterically inhibit the enzyme in the liver.Key reactions that occur early in glycolysis and the Krebs Cycle can be controlled by feedback inhibition?
b. Im sure of it
a) ATP
b) NAD +
c) ADP
d) NADHKey reactions that occur early in glycolysis and the Krebs Cycle can be controlled by feedback inhibition?
a... Phosphofructokinase is the most important control element in glycolysis. High levels of ATP allosterically inhibit the enzyme in the liver.Key reactions that occur early in glycolysis and the Krebs Cycle can be controlled by feedback inhibition?
b. Im sure of it
What is negative feedback in biology when controlling the blood sugar levels?
Negative feed back generally involves 2 hormones: glucagon, which is produced by the pancreas and stimulates the liver to release glucose onto the blood if glucose levels drop too low, and insulin, also produced by the pancreas, that stimulates the uptake of glucose by the cells if blood glucose gets too high.What is negative feedback in biology when controlling the blood sugar levels?
Negative feedback feeds part of a system's output, inverted, into the system's input; generally with the result that fluctuations are attenuated. Many real-world systems have one or several points around which the system gravitates. In response to a perturbation, a negative feedback system with such point(s) will tend to re-establish equilibrium....
In biology, this process (generally biochemical) is often referred to as homeostasis; whereas in mechanics, the more common term is equilibrium....
Negative feedback feeds part of a system's output, inverted, into the system's input; generally with the result that fluctuations are attenuated. Many real-world systems have one or several points around which the system gravitates. In response to a perturbation, a negative feedback system with such point(s) will tend to re-establish equilibrium....
In biology, this process (generally biochemical) is often referred to as homeostasis; whereas in mechanics, the more common term is equilibrium....
Has anyone purchased the product RIDDEX for pest control? If so please give me feedback? Thanks?
Use other products. They didn't Riddex anything for me.Has anyone purchased the product RIDDEX for pest control? If so please give me feedback? Thanks?
they don't work. save your money.
they don't work. save your money.
Male feedback wanted--> Sex and the Nuva Ring (birth control method)?
Hello, I just started using the Nuva Ring (birth control method) today. I am wanting boyfriend, fiancee, husband feedback on this (if your lady uses it/has used it)--- My main inquiry here is wanting to know if you can feel the ring during sex, and if so... is it uncomfortable, pleasurable, or if doesn't really make a difference, etc.?? I am just wanting some male feedback on this one right now. Thanks and please only respond if you have had ligit experience with this...Male feedback wanted--%26gt; Sex and the Nuva Ring (birth control method)?
you cant really poke it.
thats what my bf said and hes triedMale feedback wanted--%26gt; Sex and the Nuva Ring (birth control method)?
My partner has only felt mine once and it wasn't with his penis. Though from the reviews I have read, it is sometimes possible for the male to feel it during sex and some have reported it as being very pleasurable.
I've felt it it was pretty good feel actually. It didn't really work for her though was a misfit wouldn't go all the way flat agaist her cervics.
And if i was giveing her a real reigorous poke its poped out several times
I have never poked it once, and yes i have tried.
you cant really poke it.
thats what my bf said and hes triedMale feedback wanted--%26gt; Sex and the Nuva Ring (birth control method)?
My partner has only felt mine once and it wasn't with his penis. Though from the reviews I have read, it is sometimes possible for the male to feel it during sex and some have reported it as being very pleasurable.
I've felt it it was pretty good feel actually. It didn't really work for her though was a misfit wouldn't go all the way flat agaist her cervics.
And if i was giveing her a real reigorous poke its poped out several times
I have never poked it once, and yes i have tried.
Any feedback on Yaz birth control?
I'm starting it soon to try to alleviate terrible pms breakouts, mood swings, headaches, extreme menstrual pain. (plus getting married in 6 months so will then be sexually active).
I know everyone is different so i just have to try it to see, but looking for others out there.
I tried Ortho Tri Cyclin before but it made me gain weight and I became suicidal so I got off.
thank you!Any feedback on Yaz birth control?
Yaz was the best pill form of bc I've ever tried. I didn't have really any side effects from it except some boobage! LOL I just forgot to take them regularly. Like you said, everyone is different. But i've heard lots of good things from the women I've known to use it. It helped with the cramps definitely. Best of luck and a pre-congrats on the marriage :)Any feedback on Yaz birth control?
you know what you should do make sure that you and your husband have plenty of space between each other because once your period comes on you are going to be a total dare i say it...........***** so make sure that he's at a safe distance or anyone that you don't want ot mess up a relationship with for that matter
I started taking it last friday
and already
acne is clearing up :)
so good so far!eyeshadow
I know everyone is different so i just have to try it to see, but looking for others out there.
I tried Ortho Tri Cyclin before but it made me gain weight and I became suicidal so I got off.
thank you!Any feedback on Yaz birth control?
Yaz was the best pill form of bc I've ever tried. I didn't have really any side effects from it except some boobage! LOL I just forgot to take them regularly. Like you said, everyone is different. But i've heard lots of good things from the women I've known to use it. It helped with the cramps definitely. Best of luck and a pre-congrats on the marriage :)Any feedback on Yaz birth control?
you know what you should do make sure that you and your husband have plenty of space between each other because once your period comes on you are going to be a total dare i say it...........***** so make sure that he's at a safe distance or anyone that you don't want ot mess up a relationship with for that matter
I started taking it last friday
and already
acne is clearing up :)
so good so far!
Dicuss how feedback inhibition controls the production of ATP?
ATP production is controlled by regulating enzyme activity at strategic points in catabolism.
A key control point is the third step of glycolysis which is catalyzed by an allosteric enzyme, phosphofructokinase.
The ratio of ATP to ADP or AMP reflects the energy status of the cell, or energy charge. Phosphofructokinase is sensitive to changes in this ratio.
ATP and citric acid are allosteric inhibitors of phosphofructokinase, so when their concentrations rise, the enzyme slows glycolysis. As the rate of glycolysis slows, Krebs cycle also slows since the supply of acetyl CoA is reduced.
ADP or AMP are allosteric activators for phosphofructokinase, so when their concentrations relative to ATP rise, the enzyme speeds up glycolysis which speeds up the Krebs cycle.
A key control point is the third step of glycolysis which is catalyzed by an allosteric enzyme, phosphofructokinase.
The ratio of ATP to ADP or AMP reflects the energy status of the cell, or energy charge. Phosphofructokinase is sensitive to changes in this ratio.
ATP and citric acid are allosteric inhibitors of phosphofructokinase, so when their concentrations rise, the enzyme slows glycolysis. As the rate of glycolysis slows, Krebs cycle also slows since the supply of acetyl CoA is reduced.
ADP or AMP are allosteric activators for phosphofructokinase, so when their concentrations relative to ATP rise, the enzyme speeds up glycolysis which speeds up the Krebs cycle.
Could you give us some feedback on our infection control inspired fob watch, http://www.decon-time-inate.co.uk
We would like you guys to act as a sort of focus group on our infection control inspired nurses fob watch. it is fully washable to get rid of transient bugs, such as mrsa, c-difficile etc.
http://www.decon-time-inate.co.uk
let us know your thoughts
thanks johnCould you give us some feedback on our infection control inspired fob watch, http://www.decon-time-inate.co.uk
Our two pain relief nurses have a full selection of colours-and swear by them. unfortunately i am a theatre nurse-so still not allowed one (that's really not for h%26amp;s reasons, it's so we don't know when it's hometime!!)
But in theory-fab idea. Hope it takes off for youCould you give us some feedback on our infection control inspired fob watch, http://www.decon-time-inate.co.uk
The theory looks sound, but how effective are they in practice?
As others have already questioned, what's the life expectancy of the fob? How waterproof are they? Can cleansers/detergents be used on them?
Maybe, as a company, you should have considered handing out free samples to nursing staff on the proviso that they completed an evaluation/feedback form at the end of the test period.
When I worked on the floor, I wore a watch at work. I needed it to be on my wrist to be able to have my hands free to work. If a watch is pinned on your uniform, that requires one hand to lift the watch and look at it for the time, so you only have one hand to work with. I don't think I would have bought this type of watch. The nurses I see on the floor still wear watches on their wrists.
The last 6 years, I have worked in the NICU/Nursery (2 different hospitals). For those departments, you are constantly washing hands and dealing with messes and are not allowed to wear watches, rings, bracelets, etc. There are clocks on every wall so a watch isn't needed. I wouldn't wear one of these now, because I either wouldn't want my dirty hands reaching up to see what time is was, or my hands would be ';to busy'; to be free to check the time.
Seems like an obvious answer to a problem... Just how water-resistant is the mechanism? %26amp; what's the anticipated 'life' of the fob ? How big is it? could the hand gel be used on it? How reliable/sturdy is the time piece? Any plans for more colours than those shown? (I'd like purple....-I know...picky!)
Good to see NHS workers can get a discount - the cost (not including p%26amp;p) is less than I paid for the cheapest metal one I could get.
WELL !!
What a clever idea !
Wristwatches should be banned for nurses and doctors.
Fob watches have always been a popular choice.
These are ';the business';
Well done!
http://www.decon-time-inate.co.uk
let us know your thoughts
thanks johnCould you give us some feedback on our infection control inspired fob watch, http://www.decon-time-inate.co.uk
Our two pain relief nurses have a full selection of colours-and swear by them. unfortunately i am a theatre nurse-so still not allowed one (that's really not for h%26amp;s reasons, it's so we don't know when it's hometime!!)
But in theory-fab idea. Hope it takes off for youCould you give us some feedback on our infection control inspired fob watch, http://www.decon-time-inate.co.uk
The theory looks sound, but how effective are they in practice?
As others have already questioned, what's the life expectancy of the fob? How waterproof are they? Can cleansers/detergents be used on them?
Maybe, as a company, you should have considered handing out free samples to nursing staff on the proviso that they completed an evaluation/feedback form at the end of the test period.
When I worked on the floor, I wore a watch at work. I needed it to be on my wrist to be able to have my hands free to work. If a watch is pinned on your uniform, that requires one hand to lift the watch and look at it for the time, so you only have one hand to work with. I don't think I would have bought this type of watch. The nurses I see on the floor still wear watches on their wrists.
The last 6 years, I have worked in the NICU/Nursery (2 different hospitals). For those departments, you are constantly washing hands and dealing with messes and are not allowed to wear watches, rings, bracelets, etc. There are clocks on every wall so a watch isn't needed. I wouldn't wear one of these now, because I either wouldn't want my dirty hands reaching up to see what time is was, or my hands would be ';to busy'; to be free to check the time.
Seems like an obvious answer to a problem... Just how water-resistant is the mechanism? %26amp; what's the anticipated 'life' of the fob ? How big is it? could the hand gel be used on it? How reliable/sturdy is the time piece? Any plans for more colours than those shown? (I'd like purple....-I know...picky!)
Good to see NHS workers can get a discount - the cost (not including p%26amp;p) is less than I paid for the cheapest metal one I could get.
WELL !!
What a clever idea !
Wristwatches should be banned for nurses and doctors.
Fob watches have always been a popular choice.
These are ';the business';
Well done!
Anyone who has used Paxil to control anxiety... Feedback please?
Did it help? Did it not work? How were the side effects? Were you able to ween off of it fine? After you quit did you start having anxiety problems again or did it help you long term?
Anything additional please add.
I've always been sort of anti-drugs/pills when it comes to all these pills on the market, but my anxiety has gotten so severe that pills cant make my life any worse if you know what I mean. So I'm currently debating Paxil, I was told by my doctor after I explained this to him, that Paxil has hardly any side effects and hes never had a patient thats had a bad reaction to it.
And please, don't respond unless you've taken it, or known someone that takes/taken it. Thx :)Anyone who has used Paxil to control anxiety... Feedback please?
i've been on it for the past 5 weeks, for my anxiety problems-social phobia/panic disorder. honestly, i'm feeling great. my anxiety has significantly decreased; i don't feel overwhelmed to the point of feeling hopeless, im thinking more clearly, and overall feeling better. my appetite has decreased-which isn't a down for me-but i was nauseous the first few days i took it...i didn't throw up or anything. but one side effect that i'm only recently noticing is i've developed restless leg syndrome-which is quite annoying. i researched it, and it is a possible side effect of paxil. but, the results i'm getting from the paxil are good enough that i'm just going to put up with it for now. it does effect my sleep.
i would recommend it. i was on wellbutrin before i started the paxil, but the wellbutrin didn't do anything for me.
hope it helpsAnyone who has used Paxil to control anxiety... Feedback please?
I was on it once - it was OK. I don't remember side effects and I don't remember anything that happen after weening off of it - this was awhile ago. Eventually I went on Chlorazopam an anti-anxiety which works well especially for physical symptoms (unless you go off of it. Going off can cause panic attack). Also limit your sugar intake and eat a healthy diet. Get lots of exercise. Talk about your problems - often after a panic attack it may actually be possible to laugh about it - surprising but true. I think cognitive therapy (REALLY talking about the problem too) can really reduce the severity of attacks. Getting over anxiety takes more than just medication in my view - it takes dealing with issues head-on and working on yourself. I also went on Lamictal to help with concentration due to anxiety and that helped a lot (that is an off-label use btw - it is mainly used for bi-polar and seizures...)
Anything additional please add.
I've always been sort of anti-drugs/pills when it comes to all these pills on the market, but my anxiety has gotten so severe that pills cant make my life any worse if you know what I mean. So I'm currently debating Paxil, I was told by my doctor after I explained this to him, that Paxil has hardly any side effects and hes never had a patient thats had a bad reaction to it.
And please, don't respond unless you've taken it, or known someone that takes/taken it. Thx :)Anyone who has used Paxil to control anxiety... Feedback please?
i've been on it for the past 5 weeks, for my anxiety problems-social phobia/panic disorder. honestly, i'm feeling great. my anxiety has significantly decreased; i don't feel overwhelmed to the point of feeling hopeless, im thinking more clearly, and overall feeling better. my appetite has decreased-which isn't a down for me-but i was nauseous the first few days i took it...i didn't throw up or anything. but one side effect that i'm only recently noticing is i've developed restless leg syndrome-which is quite annoying. i researched it, and it is a possible side effect of paxil. but, the results i'm getting from the paxil are good enough that i'm just going to put up with it for now. it does effect my sleep.
i would recommend it. i was on wellbutrin before i started the paxil, but the wellbutrin didn't do anything for me.
hope it helpsAnyone who has used Paxil to control anxiety... Feedback please?
I was on it once - it was OK. I don't remember side effects and I don't remember anything that happen after weening off of it - this was awhile ago. Eventually I went on Chlorazopam an anti-anxiety which works well especially for physical symptoms (unless you go off of it. Going off can cause panic attack). Also limit your sugar intake and eat a healthy diet. Get lots of exercise. Talk about your problems - often after a panic attack it may actually be possible to laugh about it - surprising but true. I think cognitive therapy (REALLY talking about the problem too) can really reduce the severity of attacks. Getting over anxiety takes more than just medication in my view - it takes dealing with issues head-on and working on yourself. I also went on Lamictal to help with concentration due to anxiety and that helped a lot (that is an off-label use btw - it is mainly used for bi-polar and seizures...)
Think does the goverment mind control us video watch please feedback?
mind control feat i found this very intresting
http://uk.youtube.com/watch?v=MsNw0opJBt0Think does the goverment mind control us video watch please feedback?
You're asking about mind control, and you want us to watch your video.
Funny.
(I think if the government were controlling YOUR mind, your question would be coherent.)Think does the goverment mind control us video watch please feedback?
If you don't know English enough to have even adequate syntax, then that means that you aren't an American and/or you don't love America enough to learn it's language and culture. So why are you trying to warn Americans about their media mind control?
Nice try. I click and get them into my brain and they control me. HA, you won't get me that easy.
http://uk.youtube.com/watch?v=MsNw0opJBt0Think does the goverment mind control us video watch please feedback?
You're asking about mind control, and you want us to watch your video.
Funny.
(I think if the government were controlling YOUR mind, your question would be coherent.)Think does the goverment mind control us video watch please feedback?
If you don't know English enough to have even adequate syntax, then that means that you aren't an American and/or you don't love America enough to learn it's language and culture. So why are you trying to warn Americans about their media mind control?
Nice try. I click and get them into my brain and they control me. HA, you won't get me that easy.
Byetta-i am thinking of using this to help control my Diabetes. Does anybody have any feedback they can give m?
e. Any side affects, did it help, any info would be appreciated.
ThanksByetta-i am thinking of using this to help control my Diabetes. Does anybody have any feedback they can give m?
Isn't that something you should be discussing with your doctor?Byetta-i am thinking of using this to help control my Diabetes. Does anybody have any feedback they can give m?
ive never used it, because im only 13 and im type 1, but my uncle uses it. he is slowly changing to type 1 now, so he wont be using it much longer, but he lost weight more easily while he was using it, and it always seemed to go well for him.
but there are also some POSSIBLE side affects...
http://diabetes.emedtv.com/byetta/byetta…
speak to your doctor. they know best!!
hope this helps!!!
:)
ThanksByetta-i am thinking of using this to help control my Diabetes. Does anybody have any feedback they can give m?
Isn't that something you should be discussing with your doctor?Byetta-i am thinking of using this to help control my Diabetes. Does anybody have any feedback they can give m?
ive never used it, because im only 13 and im type 1, but my uncle uses it. he is slowly changing to type 1 now, so he wont be using it much longer, but he lost weight more easily while he was using it, and it always seemed to go well for him.
but there are also some POSSIBLE side affects...
http://diabetes.emedtv.com/byetta/byetta…
speak to your doctor. they know best!!
hope this helps!!!
:)
How does feedback inhibition aid in controlling cell metabolism ?
It keeps things in balance. If you make too much ATP, the ATP inhibits enzymes that would make more ATP. If a cell contains too much cholesterol, feedback inhibition of enzymes involved in cholesterol synthesis helps minimize the problem.eyeshadow
How did jimi hendrix control amp feedback?
im just wondering how he did it if anybody knows or assumes how he did itHow did jimi hendrix control amp feedback?
He didn't. The settings he used on his strat were to turn the amp up full and then use the volume control on the guitar to provide distortion. He also used a Marshall Superfuzz and a wah-wah pedal. Fenders only tend to feed back if you get too close to the amp.How did jimi hendrix control amp feedback?
Guitar feedback is controlled by many things.......the strength of the guitar pickups, the amp volume, position of the guitar in relationship the the amplifier speakers, the note being played, the resonant frequency of the room, the type of guitar, effects pedals that boost the signal..........Sometimes a ';controlled'; feedback can be started by touching the guitar to the speaker cabinet as a note(s) is/are being played. Jimi usually played at a rather high volume that makes feedback rather easy to produce. As far as controlling it, that just comes with practice and knowing your equipment. Controlled feedback gets to be something you can almost feel before it actually happens, and quite often is a harmonic of the note being played, instead of the actual note
I dont think he did. He used a wah wah pedal for his effects but the feedback i think he just used prove even more what a mastermind he was!
he would push his guitar closer to the amp or farther away he was a unadultirated genius love me some hendrix
He didn't. The settings he used on his strat were to turn the amp up full and then use the volume control on the guitar to provide distortion. He also used a Marshall Superfuzz and a wah-wah pedal. Fenders only tend to feed back if you get too close to the amp.How did jimi hendrix control amp feedback?
Guitar feedback is controlled by many things.......the strength of the guitar pickups, the amp volume, position of the guitar in relationship the the amplifier speakers, the note being played, the resonant frequency of the room, the type of guitar, effects pedals that boost the signal..........Sometimes a ';controlled'; feedback can be started by touching the guitar to the speaker cabinet as a note(s) is/are being played. Jimi usually played at a rather high volume that makes feedback rather easy to produce. As far as controlling it, that just comes with practice and knowing your equipment. Controlled feedback gets to be something you can almost feel before it actually happens, and quite often is a harmonic of the note being played, instead of the actual note
I dont think he did. He used a wah wah pedal for his effects but the feedback i think he just used prove even more what a mastermind he was!
he would push his guitar closer to the amp or farther away he was a unadultirated genius love me some hendrix
A cell or organ that responds to commands of the control center in negative feedback is termed a(n)?
a. thermoregulator
b. hypothalamus
c. stimulus
d. effector
e. receptorA cell or organ that responds to commands of the control center in negative feedback is termed a(n)?
d. effector.
b. hypothalamus
c. stimulus
d. effector
e. receptorA cell or organ that responds to commands of the control center in negative feedback is termed a(n)?
d. effector.
How the negative feedback controls blood glucose levels?
get the negative= decrease in glucose levels...How the negative feedback controls blood glucose levels?
Your hypothalamus has glucose detecting neurones. when your blood sugar level is high the hypothalamus stimulates insulin production.
Insulin converts glucose to glycogen. This decreases the blood sugar level and the change is detected by the hypothalamus.
It then stops stimulating insulin production.
This 'switching off' of the hormone is negative feedback.
If if didn't occur, your blood sugar would drop dramatically, making you hypoglycaemic (explained here: http://en.wikipedia.org/wiki/Hypoglycemi鈥?/a>How the negative feedback controls blood glucose levels?
Negative feedback, opposing to positive feedback, stops a reaction, rather than promoting a reaction. Insulin, secreted from the pancreas, is a hormone that regulates blood sugar levels, and it tells your body to make more glucose for your blood. When you eat, the glucose comes in and adds more to what you already have. The glucose level of your body rises, telling the pancreas to stop secreting insulin and telling your body to stop making more glucose, producing a negative feedback.
Your hypothalamus has glucose detecting neurones. when your blood sugar level is high the hypothalamus stimulates insulin production.
Insulin converts glucose to glycogen. This decreases the blood sugar level and the change is detected by the hypothalamus.
It then stops stimulating insulin production.
This 'switching off' of the hormone is negative feedback.
If if didn't occur, your blood sugar would drop dramatically, making you hypoglycaemic (explained here: http://en.wikipedia.org/wiki/Hypoglycemi鈥?/a>How the negative feedback controls blood glucose levels?
Negative feedback, opposing to positive feedback, stops a reaction, rather than promoting a reaction. Insulin, secreted from the pancreas, is a hormone that regulates blood sugar levels, and it tells your body to make more glucose for your blood. When you eat, the glucose comes in and adds more to what you already have. The glucose level of your body rises, telling the pancreas to stop secreting insulin and telling your body to stop making more glucose, producing a negative feedback.
How does negative feedback effect glucose control?
need answer asap for coursework now!!!How does negative feedback effect glucose control?
negative feedback is a response by the body's homeostatic mechanisms in the opposite direction of the stimuli.
i.e. glucose levels decrease, therefore body tries to increase it.
if blood glucose levels increase, then insulin is produced in the Beta cells of the Islets of Langerhaans in the pancreas. This hormone is then transported to the liver, where it instructs the liver stop converting glycogen into glucose for ATP synthesis. Thus, negative feedback hs occurred, as the stimulus was INCREASES blood glucose, and the body responded by DECREASE blood glucose levels
=]How does negative feedback effect glucose control?
Blood glucose rises and the beta cells of the islets of langerhans in the pancreas secrete insulin. Insulin binds to protein receptors on the hepatocytes (Liver cells) making them permeable to glucose as well as setting in motion the anabolic pathway to convert glucose to glycogen.
Blood glucose falls and the alpha cells in the islets of langerhans secrete glucagon, converting the glycogen to glucose.
negative feedback is a response by the body's homeostatic mechanisms in the opposite direction of the stimuli.
i.e. glucose levels decrease, therefore body tries to increase it.
if blood glucose levels increase, then insulin is produced in the Beta cells of the Islets of Langerhaans in the pancreas. This hormone is then transported to the liver, where it instructs the liver stop converting glycogen into glucose for ATP synthesis. Thus, negative feedback hs occurred, as the stimulus was INCREASES blood glucose, and the body responded by DECREASE blood glucose levels
=]How does negative feedback effect glucose control?
Blood glucose rises and the beta cells of the islets of langerhans in the pancreas secrete insulin. Insulin binds to protein receptors on the hepatocytes (Liver cells) making them permeable to glucose as well as setting in motion the anabolic pathway to convert glucose to glycogen.
Blood glucose falls and the alpha cells in the islets of langerhans secrete glucagon, converting the glycogen to glucose.
How would lack of dietary iodine affect the negative feedback mechanism that controls the level(no space)?
How would lack of dietary iodine affect the negative feedback mechanism that controls the level of the thyroid hormones?
Ty.How would lack of dietary iodine affect the negative feedback mechanism that controls the level(no space)?
The thyroid hormones T4 (thyroxine) and T3 contain iodine; high concentrations of T4 and T3 prevent their own synthesis by inhibiting the release of thyrotrophin-releasing hormone (TRH). TRH is normally released from the hypothalamus to the anterior pituitary, which in turn releases thyroid-stimulating hormone (TSH), which stimulates the thyroid to synthesize T4 and T3. Without iodine, T4 and T3 can't be produced, so TRH and TSH can't be inhibited; they continue to stimulate the thyroid gland to produce T4 and T3 even though it can't. This causes the thyroid to work constantly to try to make thyroid hormones and all this extra strain makes it grow, and without iodine supplementation, this can result in a goiter, which is a severely hypertrophied thyroid gland.
Ty.How would lack of dietary iodine affect the negative feedback mechanism that controls the level(no space)?
The thyroid hormones T4 (thyroxine) and T3 contain iodine; high concentrations of T4 and T3 prevent their own synthesis by inhibiting the release of thyrotrophin-releasing hormone (TRH). TRH is normally released from the hypothalamus to the anterior pituitary, which in turn releases thyroid-stimulating hormone (TSH), which stimulates the thyroid to synthesize T4 and T3. Without iodine, T4 and T3 can't be produced, so TRH and TSH can't be inhibited; they continue to stimulate the thyroid gland to produce T4 and T3 even though it can't. This causes the thyroid to work constantly to try to make thyroid hormones and all this extra strain makes it grow, and without iodine supplementation, this can result in a goiter, which is a severely hypertrophied thyroid gland.
I did exactly what everybody says, and i turned to mute in ';volume control';but i can still hear feedback, how?
is there any program or any other way around for me to turn that fuc*n feedback it pisses me offI did exactly what everybody says, and i turned to mute in ';volume control';but i can still hear feedback, how?
if your talking about some type of speaker system or headphones or something its probably got to do with a crapy/loose conection of some typeI did exactly what everybody says, and i turned to mute in ';volume control';but i can still hear feedback, how?
lol
Try turning your speakers so they don't directly face the mic. You could also get a set of headphones to use with the mic - this would also keep out other unwanted noise...
This behavior occurs when any one of the following conditions is true:
- The speakers or the microphone levels are not set correctly.
- The headset setting is selected when you are not using a headset.
- The speakers are too close to the microphone.
- There is more than one microphone.eyeshadow
if your talking about some type of speaker system or headphones or something its probably got to do with a crapy/loose conection of some typeI did exactly what everybody says, and i turned to mute in ';volume control';but i can still hear feedback, how?
lol
Try turning your speakers so they don't directly face the mic. You could also get a set of headphones to use with the mic - this would also keep out other unwanted noise...
This behavior occurs when any one of the following conditions is true:
- The speakers or the microphone levels are not set correctly.
- The headset setting is selected when you are not using a headset.
- The speakers are too close to the microphone.
- There is more than one microphone.
Any feedback on taking ogesteral b control? had no sex drive , depressed with last pill i was on for 6 yrs.?
ogesteral is the generic version of ovral. after i told my doc , about having no sex drive whatsoever, nightsweats, moody , wanna kill someone two weeks b4 my period, he switched me to this. has anybody been on this one and how do you feel?Any feedback on taking ogesteral b control? had no sex drive , depressed with last pill i was on for 6 yrs.?
Is this BC? I hate it!!! You may have low sexdrive on all B.C. It is so not good for you, you also run the risk of getting blood clots in your lungs and heart, heart attack and stroke, no matter how young you are!!!
I know it sucks, but why don't you just use rubbers and the sponge?
Is this BC? I hate it!!! You may have low sexdrive on all B.C. It is so not good for you, you also run the risk of getting blood clots in your lungs and heart, heart attack and stroke, no matter how young you are!!!
I know it sucks, but why don't you just use rubbers and the sponge?
What is meant by feedback and feed forward control?
I think you are talking about positive and negative feedback in a servo. The servo is trying it's best to keep speed where it has been set at by the technician. Perfect speed is impossible so when it leads then negative feedback is automatically ordered by the resolver. When it lags the the resolver orders positive feedback. The motor and resolver are mechanically linked together so the feedback is almost instantanious.What is meant by feedback and feed forward control?
Feed-forward is a term describing an element or pathway within a control system which passes a controlling signal from a source in the control system's external environment, often a command signal from an external operator, to a load elsewhere in its external environment. A control system which has only feed-forward behavior responds to its control signal in a pre-defined way without responding to how the load reacts; it is in contrast with a system that also has feedback, which adjusts the output to take account of how it affects the load, and how the load itself may vary unpredictably; the load is considered to belong to the external environment of the system.
Some prerequisites are needed for control scheme to be reliable by pure feed-forward without feedback: the external command or controlling signal must be available, and the effect of the output of the system on the load should be known (that usually means that the load must be predictably unchanging with time). Sometimes pure feed-forward control without feedback is called 'ballistic', because once a control signal has been sent, it cannot be further adjusted; any corrective adjustment must be by way of a new control signal. In contrast 'cruise control' adjusts the output in response to the load that it encounters, by a feedback mechanism.
These systems could be in control theory, physiology or computing.
Feed-forward is a term describing an element or pathway within a control system which passes a controlling signal from a source in the control system's external environment, often a command signal from an external operator, to a load elsewhere in its external environment. A control system which has only feed-forward behavior responds to its control signal in a pre-defined way without responding to how the load reacts; it is in contrast with a system that also has feedback, which adjusts the output to take account of how it affects the load, and how the load itself may vary unpredictably; the load is considered to belong to the external environment of the system.
Some prerequisites are needed for control scheme to be reliable by pure feed-forward without feedback: the external command or controlling signal must be available, and the effect of the output of the system on the load should be known (that usually means that the load must be predictably unchanging with time). Sometimes pure feed-forward control without feedback is called 'ballistic', because once a control signal has been sent, it cannot be further adjusted; any corrective adjustment must be by way of a new control signal. In contrast 'cruise control' adjusts the output in response to the load that it encounters, by a feedback mechanism.
These systems could be in control theory, physiology or computing.
Would like feedback from anyone that has taken Yaz birth control v/s Loestrin 24FE.?
Researching for my 18 year old daughter. She has acne and was prescribed Yaz. The side effects to Yaz are tripled than other birth control pills, so looking for other birth control options.Would like feedback from anyone that has taken Yaz birth control v/s Loestrin 24FE.?
Yaz %26amp; Yasmin have serious risks associated with them, more so than other birth control pills.
I took Loestrin 24FE for 4 years and quit taking it. I had no problems whatsoever. When I got married I got put back on the pill and the doctors recommended Yasmin which is the same as Yaz or Ocella for that matter. Two months later I was hospitalized for a DVT that ran from my knee to my abdomen and my leg had very little bloodflow. Keep in mind I was 20 at the time %26amp; a non-smoker. I was also irritable, depressed, and started having migraines within 3 weeks of taking yasmin.
There are warnings everywhere about Yaz/Yasmin/Ocella. I would be very cautious with it as I learned the hard way. I would definitely switch her either an acne medicine or a different birth control pill. People of all ages are dying/extremely sick %26amp; hurt due to this pill.Would like feedback from anyone that has taken Yaz birth control v/s Loestrin 24FE.?
wel iv taken Yaz for about half a year and it was very effective on me. my acne totally cleared up and i didnt gain any wieght (because im not over wieght). Yaz was very good for me and made my periods 2or3 days long with hardly any cramps. now im on the shot but yaz was good. idk about the other kind iv never heard of it. good louck! try googling both of them %26amp; check out the risks and advantages!
just letting you know not to go for the yaz for sure. i went on those and although they aren't bad for some girls...for me after a year or so the symptoms were not good. all the cramps and everything came back. i had to switch asap.
i think there is an ad running on tv about yaz and the negative effects so continue to check it out as much as u can
Yaz %26amp; Yasmin have serious risks associated with them, more so than other birth control pills.
I took Loestrin 24FE for 4 years and quit taking it. I had no problems whatsoever. When I got married I got put back on the pill and the doctors recommended Yasmin which is the same as Yaz or Ocella for that matter. Two months later I was hospitalized for a DVT that ran from my knee to my abdomen and my leg had very little bloodflow. Keep in mind I was 20 at the time %26amp; a non-smoker. I was also irritable, depressed, and started having migraines within 3 weeks of taking yasmin.
There are warnings everywhere about Yaz/Yasmin/Ocella. I would be very cautious with it as I learned the hard way. I would definitely switch her either an acne medicine or a different birth control pill. People of all ages are dying/extremely sick %26amp; hurt due to this pill.Would like feedback from anyone that has taken Yaz birth control v/s Loestrin 24FE.?
wel iv taken Yaz for about half a year and it was very effective on me. my acne totally cleared up and i didnt gain any wieght (because im not over wieght). Yaz was very good for me and made my periods 2or3 days long with hardly any cramps. now im on the shot but yaz was good. idk about the other kind iv never heard of it. good louck! try googling both of them %26amp; check out the risks and advantages!
just letting you know not to go for the yaz for sure. i went on those and although they aren't bad for some girls...for me after a year or so the symptoms were not good. all the cramps and everything came back. i had to switch asap.
i think there is an ad running on tv about yaz and the negative effects so continue to check it out as much as u can
1. Explain how to analyze performance of a feedback control system?
it is quite simple!
you disturb the input or output and make a bode plot
at the point where the phase is 180潞 the gain must be less than 1
if more than 1 the loop will oscillate
Guru
you disturb the input or output and make a bode plot
at the point where the phase is 180潞 the gain must be less than 1
if more than 1 the loop will oscillate
Guru
Has anyone tried those Electronic Pest Control gadgets? Needing some serious feedback before purchase - Thanks
We live in a 2 level town house with garage %26amp; small yard. Neighbour has birds which have increased mouse population dramatically, plus theres the dreaded cockroach... can't handle waking up to one falling on you from the roof... we do have a clean home, cockroaches are just everywhere these days; I have chemically sensitive grandchildren so need to limit amount of pesticides, etc and am looking for a safe and effective way to control pests. The Cost of 2 units is Au $180 - Being a pensioner I hesitate to purchase without some authentic customer feedback so am looking for people who have tried these gadgets.:Has anyone tried those Electronic Pest Control gadgets? Needing some serious feedback before purchase - Thanks
Hi,
Save your money, I tried them years ago, I swear I had one mouse run right by me after I plugged an electronic ';chaser'; in,
look back at me, stopped, and gave me a look of like, ';WHAT!?';
Hope this helps,
DaveHas anyone tried those Electronic Pest Control gadgets? Needing some serious feedback before purchase - Thanks
Your Welcome, have a good day!
you can buy cocky baits for in %26amp; under cupboards from the super markets %26amp; if you are like me %26amp; hate killing mice you can get traps %26amp; you let them go but you need to fix where they are getting in the house
Those don't work...it's like a disco light for your mice to party to.
BUT! What does work is Bobcat urine...yes it does sound strange but cats mark their space. By putting the bobcat urine down it smell sthe same so the mice stay away. If you do ask.com ';how to get rid of mice'; you should be able to find the website.
Good luck!
They do not work, get yourself a cat. As for the cockroaches, a mixture of boric acid and sugar works. There is also a gel that you can put out in cracks and crevises that works great!
Hi,
Save your money, I tried them years ago, I swear I had one mouse run right by me after I plugged an electronic ';chaser'; in,
look back at me, stopped, and gave me a look of like, ';WHAT!?';
Hope this helps,
DaveHas anyone tried those Electronic Pest Control gadgets? Needing some serious feedback before purchase - Thanks
Your Welcome, have a good day!
Report Abuse
you can buy cocky baits for in %26amp; under cupboards from the super markets %26amp; if you are like me %26amp; hate killing mice you can get traps %26amp; you let them go but you need to fix where they are getting in the house
Those don't work...it's like a disco light for your mice to party to.
BUT! What does work is Bobcat urine...yes it does sound strange but cats mark their space. By putting the bobcat urine down it smell sthe same so the mice stay away. If you do ask.com ';how to get rid of mice'; you should be able to find the website.
Good luck!
They do not work, get yourself a cat. As for the cockroaches, a mixture of boric acid and sugar works. There is also a gel that you can put out in cracks and crevises that works great!
Explain the negative feedback control of body temperature using thermoreceptors, the hypothalamus, & temperatu?
Negative Feedback - keeps the internal environment constant!
Receptor - detects the stimulus (whether the temperature is too high or too low)
. . then
Processing centre - recieves ther information and coordinates a response.
. . . then
Effector - produces the response which conteracts the change (the level will either decrease or increase)!!
hope this is some help.
feel free to email me, for more info.eyeshadow
Receptor - detects the stimulus (whether the temperature is too high or too low)
. . then
Processing centre - recieves ther information and coordinates a response.
. . . then
Effector - produces the response which conteracts the change (the level will either decrease or increase)!!
hope this is some help.
feel free to email me, for more info.
Does anyone have any feedback on loestrin fe birth control?
I'm about to start taking it and was just curious to hear experiences, good and bad. Just wanted to know what I might be expecting.
thanks ladies!Does anyone have any feedback on loestrin fe birth control?
i've been on it for two months and the only complaints i have are that i have a few more breakouts and i've missed my period even though i'm not pregnant. since it's low estrogen, skipping periods is normal, but it STILL freaks me out. i'm definitely not used to it. but it's way better than all my previous experiences [i've used trinessa and yaz, both were nightmares]. i did well on the patch but i switched because i heard so much about it causing infertility and scary side effects.
so all in all i'd say it's a fairly decent pill. i just stress myself out every month worrying...but i think i'll get used to it within the next month.
thanks ladies!Does anyone have any feedback on loestrin fe birth control?
i've been on it for two months and the only complaints i have are that i have a few more breakouts and i've missed my period even though i'm not pregnant. since it's low estrogen, skipping periods is normal, but it STILL freaks me out. i'm definitely not used to it. but it's way better than all my previous experiences [i've used trinessa and yaz, both were nightmares]. i did well on the patch but i switched because i heard so much about it causing infertility and scary side effects.
so all in all i'd say it's a fairly decent pill. i just stress myself out every month worrying...but i think i'll get used to it within the next month.
How Can I Control (Or Limit) The Feedback On My Amp?
I have a Marshall 100watt amp, and I am having major problems with the immense amounts of feedback I am getting. I also dont have much room if I want to play at a local gig or something because I need to practically be on the otherside of a medium sized basement to prevent the feedback. some help?How Can I Control (Or Limit) The Feedback On My Amp?
100 watt Marshalls are meant for large venues.
You might think about getting a lower wattage amp for practice and smaller venues.
100 watt Marshalls are meant for large venues.
You might think about getting a lower wattage amp for practice and smaller venues.
Explain negative feedback control of body temperature?
using thermoreceptors, the hypothalamus, %26amp; the temperature control center.Explain negative feedback control of body temperature?
The relatively constant conditions within organisms, or the physiological processes by which such conditions are maintained in the face of external variation.
Similar homeostatic controls are used to keep factors such as temperature and blood pressure nearly constant despite changes in an organism's activity level or surroundings. Such systems operate by detecting changes in the variable that the system is designed to hold constant and initiating some action that offsets any change. All incorporate a sensor within the system that responds when the actual condition differs from the desired one, a device to ensure that any action taken will reduce the difference between actual and desired, and an effector to take the needed action as directed. The crucial aspect is that information is fed back from effector to sensor and action is taken to reduce any imbalance—hence the term negative feedback.
Body temperature in mammals is regulated by a sensor that consists of cells within the hypothalamus of the brain. Several effectors are involved, which vary among animals. These include increasing heat production through nonspecific muscle activity such as shivering; increasing heat loss through sweating, panting, and opening more blood vessels in the skin (vasodilation); and decreasing heat loss through thickening of fur (piloerection) and curling up. Humans sweat, but they retain only a vestige of piloerection (“goose flesh”).
While the homeostatic mechanisms described involve the neural and endocrine systems of mammals, it is clear that such arrangements pervade systems from genes to biological communities, and that they are used by the simplest and the most complex organisms.
The relatively constant conditions within organisms, or the physiological processes by which such conditions are maintained in the face of external variation.
Similar homeostatic controls are used to keep factors such as temperature and blood pressure nearly constant despite changes in an organism's activity level or surroundings. Such systems operate by detecting changes in the variable that the system is designed to hold constant and initiating some action that offsets any change. All incorporate a sensor within the system that responds when the actual condition differs from the desired one, a device to ensure that any action taken will reduce the difference between actual and desired, and an effector to take the needed action as directed. The crucial aspect is that information is fed back from effector to sensor and action is taken to reduce any imbalance—hence the term negative feedback.
Body temperature in mammals is regulated by a sensor that consists of cells within the hypothalamus of the brain. Several effectors are involved, which vary among animals. These include increasing heat production through nonspecific muscle activity such as shivering; increasing heat loss through sweating, panting, and opening more blood vessels in the skin (vasodilation); and decreasing heat loss through thickening of fur (piloerection) and curling up. Humans sweat, but they retain only a vestige of piloerection (“goose flesh”).
While the homeostatic mechanisms described involve the neural and endocrine systems of mammals, it is clear that such arrangements pervade systems from genes to biological communities, and that they are used by the simplest and the most complex organisms.
How does the negative feedback system work to control hormone levels in the blood ?
please help !!!!!!How does the negative feedback system work to control hormone levels in the blood ?
When some hormones are secreted in your body, they are done so by signalling hormones.
For example
Your pituitary gland in your brain secretes TSH (thyroid stimulating hormone). As the name lets you infer, this hormone when it reaches your thyroid gland will STIMULATE your thyroid to produce thyroid hormones (thyroxine and tri-iodothyronine).
To avoid overproduction/secretion of these thyroid hormones, these hormones will NEGATIVELY feedback on to the pituitary gland to stop production of TSH. This will then stop production of thyroid hormones to keep things in balance.
When some hormones are secreted in your body, they are done so by signalling hormones.
For example
Your pituitary gland in your brain secretes TSH (thyroid stimulating hormone). As the name lets you infer, this hormone when it reaches your thyroid gland will STIMULATE your thyroid to produce thyroid hormones (thyroxine and tri-iodothyronine).
To avoid overproduction/secretion of these thyroid hormones, these hormones will NEGATIVELY feedback on to the pituitary gland to stop production of TSH. This will then stop production of thyroid hormones to keep things in balance.
Explain how the hypothalamus-pituitary complex operates as a feedback control?
Explain how the hypothalamus-pituitary complex operates as a feedback control,
including a few examples of RF's (releasing factors), pituitary hormones and target tissues; e.g.,
TSH on thyroidExplain how the hypothalamus-pituitary complex operates as a feedback control?
Well, it's basically like a response. For example, if you get an allergic reaction, your body will release histamines in order to combat these foreign invaders.Explain how the hypothalamus-pituitary complex operates as a feedback control?
This can generally be a hard concept with the fact the pituitary and the hypothalamus have many different jobs. But with a general reflex arc, or when the body is excited or scared for instance, there are a series of reactions that occur. For instance, if you were burned, first a message would be sent to the brain about the pain, and then the carotene and other materials would be sent through with your blood to make a temporary scar for healing purposes to happen.
I will try to find some links to explain it better to you.
http://www.vivo.colostate.edu/hbooks/pat鈥?/a>
http://science.jrank.org/pages/3381/Horm鈥?/a>
http://en.wikipedia.org/wiki/Hypothalami鈥?/a>
releasing factors are produced by the hypothalamus and these control or are referred to as trophic in lauralee sherwood because it causes the other organs to produce hormones in response......they nurture the pituitary gland........eg the hypothalamus produces CRH corticotrophin releasing hormones which stimulate the release of ACTH from the anterior pituitary gland.....ACTH will arrive at the target cells in the kidneys and attach to the receptors there and stimulate the kidneys to produce cortisol......an inportant component of combating stress......it helps to alleviate stress by causing an increase in glucose and amino acids to prepare for a stressful situation that requires fight or flight resp......together with adrenaline in synergism.......
once cortisol is produced it will be circulated in the blood and will be transported to the hypothalamus and pituitary glands where their concentrations ';unbound'; to albumin provides the feedback control to determine the appropriate response.........this is a negative feedback control mechanism......as CRH levels decrease.....ACTH will subsequently decrease and therefore after cortisol reached its peak, the feedback control will turn off the production until needed again.........this is also known as the hypo-pituitary axis....and this axis can be altered due to many factors eg.....through the prolonged used of cortisone products like prednisolone......a cortisol derivative that suppresses the axis and when the medication is withdrawn....the axis will be affected....
including a few examples of RF's (releasing factors), pituitary hormones and target tissues; e.g.,
TSH on thyroidExplain how the hypothalamus-pituitary complex operates as a feedback control?
Well, it's basically like a response. For example, if you get an allergic reaction, your body will release histamines in order to combat these foreign invaders.Explain how the hypothalamus-pituitary complex operates as a feedback control?
This can generally be a hard concept with the fact the pituitary and the hypothalamus have many different jobs. But with a general reflex arc, or when the body is excited or scared for instance, there are a series of reactions that occur. For instance, if you were burned, first a message would be sent to the brain about the pain, and then the carotene and other materials would be sent through with your blood to make a temporary scar for healing purposes to happen.
I will try to find some links to explain it better to you.
http://www.vivo.colostate.edu/hbooks/pat鈥?/a>
http://science.jrank.org/pages/3381/Horm鈥?/a>
http://en.wikipedia.org/wiki/Hypothalami鈥?/a>
releasing factors are produced by the hypothalamus and these control or are referred to as trophic in lauralee sherwood because it causes the other organs to produce hormones in response......they nurture the pituitary gland........eg the hypothalamus produces CRH corticotrophin releasing hormones which stimulate the release of ACTH from the anterior pituitary gland.....ACTH will arrive at the target cells in the kidneys and attach to the receptors there and stimulate the kidneys to produce cortisol......an inportant component of combating stress......it helps to alleviate stress by causing an increase in glucose and amino acids to prepare for a stressful situation that requires fight or flight resp......together with adrenaline in synergism.......
once cortisol is produced it will be circulated in the blood and will be transported to the hypothalamus and pituitary glands where their concentrations ';unbound'; to albumin provides the feedback control to determine the appropriate response.........this is a negative feedback control mechanism......as CRH levels decrease.....ACTH will subsequently decrease and therefore after cortisol reached its peak, the feedback control will turn off the production until needed again.........this is also known as the hypo-pituitary axis....and this axis can be altered due to many factors eg.....through the prolonged used of cortisone products like prednisolone......a cortisol derivative that suppresses the axis and when the medication is withdrawn....the axis will be affected....
Does anyone have any positive feedback for Mirena birth control?
I'm scheduled to have this procedure done next month, but I've heard so many negative things. Does anyone have anything good to say about this?Does anyone have any positive feedback for Mirena birth control?
I've had mine for 5 months and absolutely love it. I spotted for the first month but only minimally. Since then I've had no bleeding at all and I'm rapt. I'd heard bad things and hated the idea of it (I've never had kids) but I'm really glad I gave it a chance and couldn't be happier with the results. Give it a try, you might be surprised! I know I was.eyeshadow
I've had mine for 5 months and absolutely love it. I spotted for the first month but only minimally. Since then I've had no bleeding at all and I'm rapt. I'd heard bad things and hated the idea of it (I've never had kids) but I'm really glad I gave it a chance and couldn't be happier with the results. Give it a try, you might be surprised! I know I was.
Question about Estimators in FeedBack Control?
Does anyone know the advantages/disadvantages of full-order estimators over reduced-order estimators....?
Thank you.Question about Estimators in FeedBack Control?
It depends on how accurate your model is compared to the actual plant and how accurate the first, second, etc. derivatives of your model are. You would need no feedback at all if your estimator were perfect. Good estimators are on par with feedfoward and cause a response without the lag of measuring, then correcting the response.Question about Estimators in FeedBack Control?
no clue
Thank you.Question about Estimators in FeedBack Control?
It depends on how accurate your model is compared to the actual plant and how accurate the first, second, etc. derivatives of your model are. You would need no feedback at all if your estimator were perfect. Good estimators are on par with feedfoward and cause a response without the lag of measuring, then correcting the response.Question about Estimators in FeedBack Control?
no clue
What are the type of feedback in control system?
Definition
Feedback describes the situation when output from (or information about the result of) an event or phenomenon in the past will influence the same event/phenomenon in the present or future. When an event is part of a chain of cause-and-effect that forms a circuit or loop, then the event is said to ';feed back'; into itself.
Feedback is also a synonym for:
Feedback signal: the information about the initial event that is the basis for subsequent modification of the event.
Feedback loop: the causal path that leads from the initial generation of the feedback signal to the subsequent modification of the event.
Audio feedback: the special kind of positive feedback which occurs when a loop exists between an audio input and output.
Types of Feedback in Control System
When feedback modifies an event/phenomenon, the modification will subsequently influence the feedback signal in one of three ways:
1 - the feedback signal increases, leading to more modification. This is known as positive feedback.
2 - the feedback signal decreases, leading to less modification. This is known as negative feedback.
3 - the feedback signal does not change, indicating the phenomenon is in equilibrium.
Note that an increase or decrease of the feedback signal here refers to the magnitude of the signal's absolute value, without regard to the polarity or sign of the signal. For example a change in signal value from +5 to +10 or from -3 to -6 are both considered to be increasing.
Positive feedback, which seeks to increase the event that caused it, as in a nuclear chain-reaction, is also known as a self-reinforcing loop. An event influenced by positive feedback will increase or decrease its output/activation until it hits a limiting constraint. Such a constraint may be destructive, as in thermal runaway or a nuclear chain reaction. Self-reinforcing loops can be a smaller part of a larger balancing loop, especially in biological systems such as regulatory circuits.
Negative feedback, which seeks to reduce the feedback signal that caused it, is also known as a self-correcting or balancing loop. Such loops tend to be goal-seeking, as in a thermostat which compares actual temperature with desired temperature and seeks to reduce the difference. Balancing loops are sometimes prone to hunting: an oscillation caused by an excessive or delayed feedback signal, resulting in over-correction.
The terms negative and positive feedback can be used loosely or colloquially to describe or imply criticism and praise, respectively. This may lead to confusion with the more technically accurate terms positive and negative reinforcement, which refer to something that changes the likelihood of a future behavior.
Negative feedback was applied by Harold Stephen Black to electrical amplifiers in 1927, but he could not get his idea patented until 1937. Arturo Rosenblueth, a Mexican researcher and physician, co-authored a seminal 1943 paper Behavior, Purpose and Teleology that, according to Norbert Wiener (another co-author of the paper), set the basis for the new science cybernetics. Rosenblueth proposed that behavior controlled by negative feedback, whether in animal, human or machine, was a determinative, directive principle in nature and human creations.. This kind of feedback is studied in cybernetics and control theory.
Feedback describes the situation when output from (or information about the result of) an event or phenomenon in the past will influence the same event/phenomenon in the present or future. When an event is part of a chain of cause-and-effect that forms a circuit or loop, then the event is said to ';feed back'; into itself.
Feedback is also a synonym for:
Feedback signal: the information about the initial event that is the basis for subsequent modification of the event.
Feedback loop: the causal path that leads from the initial generation of the feedback signal to the subsequent modification of the event.
Audio feedback: the special kind of positive feedback which occurs when a loop exists between an audio input and output.
Types of Feedback in Control System
When feedback modifies an event/phenomenon, the modification will subsequently influence the feedback signal in one of three ways:
1 - the feedback signal increases, leading to more modification. This is known as positive feedback.
2 - the feedback signal decreases, leading to less modification. This is known as negative feedback.
3 - the feedback signal does not change, indicating the phenomenon is in equilibrium.
Note that an increase or decrease of the feedback signal here refers to the magnitude of the signal's absolute value, without regard to the polarity or sign of the signal. For example a change in signal value from +5 to +10 or from -3 to -6 are both considered to be increasing.
Positive feedback, which seeks to increase the event that caused it, as in a nuclear chain-reaction, is also known as a self-reinforcing loop. An event influenced by positive feedback will increase or decrease its output/activation until it hits a limiting constraint. Such a constraint may be destructive, as in thermal runaway or a nuclear chain reaction. Self-reinforcing loops can be a smaller part of a larger balancing loop, especially in biological systems such as regulatory circuits.
Negative feedback, which seeks to reduce the feedback signal that caused it, is also known as a self-correcting or balancing loop. Such loops tend to be goal-seeking, as in a thermostat which compares actual temperature with desired temperature and seeks to reduce the difference. Balancing loops are sometimes prone to hunting: an oscillation caused by an excessive or delayed feedback signal, resulting in over-correction.
The terms negative and positive feedback can be used loosely or colloquially to describe or imply criticism and praise, respectively. This may lead to confusion with the more technically accurate terms positive and negative reinforcement, which refer to something that changes the likelihood of a future behavior.
Negative feedback was applied by Harold Stephen Black to electrical amplifiers in 1927, but he could not get his idea patented until 1937. Arturo Rosenblueth, a Mexican researcher and physician, co-authored a seminal 1943 paper Behavior, Purpose and Teleology that, according to Norbert Wiener (another co-author of the paper), set the basis for the new science cybernetics. Rosenblueth proposed that behavior controlled by negative feedback, whether in animal, human or machine, was a determinative, directive principle in nature and human creations.. This kind of feedback is studied in cybernetics and control theory.
Why does natural selection favour negative feedback control over positive feedback control?
negative feedback is the ability to maintain homeostasis and to be ability to regulate one's body/organism when impede by environmental conflict......the more able and organism can do that...the more fit they are and can contribute to the gene pool or reproduce and therefore natural selectedWhy does natural selection favour negative feedback control over positive feedback control?
Good question.
I would say that in general, positive feedback leads to unstability (going in a certain direction just perpetuates itself) while negative feedback leads to stability.
Since living things need certain conditions to survive etc, the ones with feedback mechanisms that help maintain such conditions for long periods are a benefit. Thus, these individuals will survive better (i.e. natural selection ';favors'; them';). Think about hunger for example - if eating would make you more hungry again and again (positive feedback) - you would waste time searching for nutrients you don't need anymore. Your existing negative feedback, on the other hand, does a great job in getting you what you need.
Good question.
I would say that in general, positive feedback leads to unstability (going in a certain direction just perpetuates itself) while negative feedback leads to stability.
Since living things need certain conditions to survive etc, the ones with feedback mechanisms that help maintain such conditions for long periods are a benefit. Thus, these individuals will survive better (i.e. natural selection ';favors'; them';). Think about hunger for example - if eating would make you more hungry again and again (positive feedback) - you would waste time searching for nutrients you don't need anymore. Your existing negative feedback, on the other hand, does a great job in getting you what you need.
How does feedback mechanism help control body temperature?
The feedback mechanism, also known as feedback inhibition, is a stimulator that halts/induces particular proteins/enzymes from doing their job.
Example:
If there is high levels of insulin in the blood, the brain would signal the pancreas to stop producing insulin.
Likewise, when someone gets a fever, their body is fighting off the infection. Once the infection has been isolated/removed, the body decreases its energy (or focus) on the specific intruder. The brain signals for the WBC and T-Cells to stop attacking if nothing is remaining, and stops the production of WBC.
That's why you don't always have a fever, after having a fever (if that made any sense)
Let me know if that doesn't make sense.
Example:
If there is high levels of insulin in the blood, the brain would signal the pancreas to stop producing insulin.
Likewise, when someone gets a fever, their body is fighting off the infection. Once the infection has been isolated/removed, the body decreases its energy (or focus) on the specific intruder. The brain signals for the WBC and T-Cells to stop attacking if nothing is remaining, and stops the production of WBC.
That's why you don't always have a fever, after having a fever (if that made any sense)
Let me know if that doesn't make sense.
What is the function of a control center in a feedback control system for homoeostasis?
A simple feedback loop to regulate a parameter is usually like this:
..(ignore the dots).d-|
..+............................\/
r-o---%26gt;[c]----%26gt;[p]------%26gt;y
- /\.......................|
....\____________|
where o is the summing junction and the lower loop is the sensor loop which gives the error signal
the c is the compensator, which boosts the weak input voltage and the p is the transfer function of the open system, (heater, lights, whatever is used to provide the change to the system), and y is the output (the homeostasis-ity if you will) d is an input that allows you to calibrate the system to perform correctly.
The return loop(the arrow on the bottom pointing back towards the input) is a system sensor usually, and it reads where the system is actually at, so, if say the heat was low, it would read negative, which is subtracted from the input(thus adding) which would give a higher input voltage, causing your system to heat faster, then the closer it gets to the correct temperature, the value it reads that is off of what you want gets lower, and when it reaches the correct setting, it goes to zero.
The short version is, you have a method of changing your temperature, your sensors read the current temperature, the control changes the temperature to this one.
..(ignore the dots).d-|
..+............................\/
r-o---%26gt;[c]----%26gt;[p]------%26gt;y
- /\.......................|
....\____________|
where o is the summing junction and the lower loop is the sensor loop which gives the error signal
the c is the compensator, which boosts the weak input voltage and the p is the transfer function of the open system, (heater, lights, whatever is used to provide the change to the system), and y is the output (the homeostasis-ity if you will) d is an input that allows you to calibrate the system to perform correctly.
The return loop(the arrow on the bottom pointing back towards the input) is a system sensor usually, and it reads where the system is actually at, so, if say the heat was low, it would read negative, which is subtracted from the input(thus adding) which would give a higher input voltage, causing your system to heat faster, then the closer it gets to the correct temperature, the value it reads that is off of what you want gets lower, and when it reaches the correct setting, it goes to zero.
The short version is, you have a method of changing your temperature, your sensors read the current temperature, the control changes the temperature to this one.
Is thirst a positive or negative feedback control system and why?
Negative. When thirst increases, it stimulates you to drink and so thirst then decreases. Thirst decreases itself in this way and so it is a negative feedback system. An example of positive feedback is addiction: you smoke a cigarette, which makes you want to smoke more and so smoking increases itself, whereas thirst does not increase forever because it makes you want to drink something.Is thirst a positive or negative feedback control system and why?
1.positive feedback is like acceleration..if there is an increase the reaction will be an increase like an increase in a certain hormone in ur body increases reabsorption of a certain material
2.negative feedback is opposition a certain increase in the thyroxine levels in the blood will lead to a decrease in th thyroide activity while a decrease in the levels will trigger the tsh so thyroid produce more of the hormone....
so u gotta find out what makes u feel thirsty?? and then concider it and i'll look it up in my physiology book......just to b a ccurateIs thirst a positive or negative feedback control system and why?
positive because its helping you
it is not the matter of indicator,everybody thirst
Thirst is a negative feedback in humans with Diabetes and some other diseases, means the body cannot regulate it's insulin. Thirst is a positive thing when a person is dehydrated, signaling a desperate need to replenish the body fluids so the blood can circulate and the kidneys can be cleansed.
Both, it is positive because it replenishes what is lost in a normaly functioning body, it is negative if some function in the body is abnormal such as one sign of a form of diabetes is excessive thirst.eyeshadow
1.positive feedback is like acceleration..if there is an increase the reaction will be an increase like an increase in a certain hormone in ur body increases reabsorption of a certain material
2.negative feedback is opposition a certain increase in the thyroxine levels in the blood will lead to a decrease in th thyroide activity while a decrease in the levels will trigger the tsh so thyroid produce more of the hormone....
so u gotta find out what makes u feel thirsty?? and then concider it and i'll look it up in my physiology book......just to b a ccurateIs thirst a positive or negative feedback control system and why?
positive because its helping you
it is not the matter of indicator,everybody thirst
Thirst is a negative feedback in humans with Diabetes and some other diseases, means the body cannot regulate it's insulin. Thirst is a positive thing when a person is dehydrated, signaling a desperate need to replenish the body fluids so the blood can circulate and the kidneys can be cleansed.
Both, it is positive because it replenishes what is lost in a normaly functioning body, it is negative if some function in the body is abnormal such as one sign of a form of diabetes is excessive thirst.
Give examples of positive and negative feedback mechanisms which control homeostasis?
i need to know of some examples to better understand how they work.Give examples of positive and negative feedback mechanisms which control homeostasis?
Positive just means do more. Oxytocin is positive feedback
Negative means do less. Thyroid or pituitary feedback is negative.
Almost all feedback mechanisms are negative.
Positive just means do more. Oxytocin is positive feedback
Negative means do less. Thyroid or pituitary feedback is negative.
Almost all feedback mechanisms are negative.
Explain the difference between positive and negative feedback mechanisms which control homeostasis?
A Negative feedback mechanism BLOCKS (inhibits) the pathway involved.
A Positive feedback mechanism PROMOTES (activates or reinforces) the pathway.
A Positive feedback mechanism PROMOTES (activates or reinforces) the pathway.
Why the cloud is a feedback system to control the temperature?
draw a diagram explain why the cloud is a feedback system to control the temperature?
How do you draw that diagram?
and how is cloud a feedback system to control the temperature?Why the cloud is a feedback system to control the temperature?
here is your answer with the diagram
How do you draw that diagram?
and how is cloud a feedback system to control the temperature?Why the cloud is a feedback system to control the temperature?
here is your answer with the diagram
What are the types of feedback mechanisms that control respiration?
O2 and CO2 levels in the bloodstream and cardiac rate.What are the types of feedback mechanisms that control respiration?
The level of ADP and citrate in the cell.
The level of ADP and citrate in the cell.
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