No data available that match "Chemical Actions and Uses"



*  .. Testing for endocrine disruption: Are we there yet? .. Related Posts
Coalition for Chemical Safety throws first member under the ... € for its new Chemical Action Plans ». Testing for endocrine ... disruptors are chemicals capable of interfering with the action ... After long delays, the EPA’s Office of Pesticide Programs recently issued endocrine disruptor screening test orders for dozens of high-priority pesticide ingredients. Endocrine disruptors are chemicals capable of interfering with the action of hormones that regulate biological processes such as development, growth, reproduction and metabolism. The test orders require pesticide manufacturers to evaluate their chemicals using a specific battery of tests. In the Food Quality Protection Act of 1996, Congress mandated the development of the Endocrine Disruptor Screening Program EDSP , with the goal of developing test methods to identify those chemicals with the potential to interact with the estrogen, androgen, or thyroid hormone systems. Now, more than 12 years later, the first tier of the comprehensive test b...
http://blogs.edf.org/health/2009/12/22/testing-for-endocrine-disruption-are-we-there-yet/
*  Lewisite
Chemical reactions Mode of action as chemical weapon Chemical composition History Controversy over ... is a carcinogen. Chemical composition. Lewisite was first ... Chemical reactions Mode of action as chemical weapon Chemical composition History Controversy over Japanese depots of lewisite in China References. It is possible that Lewisite may be a carcinogen since arsenic is categorized as a respiratory carcinogen by the International Agency for Research on Cancer, though it has not been confirmed that Lewisite is a carcinogen. Chemical composition. Lewisite was first synthesised in 1904 by Julius Arthur Nieuwland during studies for his PhD. Julius Arthur Nieuwland 1904 "," Ph.D. thesis, University of Notre Dame Notre Dame, Indiana. Father Nieuwland and the 'Dew of Death'. In 1918 Dr John Griffin Julius Arthur Nieuwland's thesis advisor drew Lewis's attention to Nieuwland's thesis at Maloney Hall, a chemical laboratory at The Catholic University of America, Washington D.C. Lewisite was developed into a se...
https://en.wikipedia.org/wiki/Lewisite
*  Quinine
Mechanism of action Physical and chemical properties ... , the mechanism of action of quinine has not been fully resolved ... Mechanism of action Physical and chemical properties Synthesis. Image:Tonic water uv.jpg Quinine is a flavour component of tonic water and bitter lemon. According to tradition, the bitter taste of antimalarial quinine tonic led British colonials in India to mix it with gin, thus creating the gin and tonic cocktail, which is still popular today in many parts of the world, especially the UK, United States, Canada, Australia, and New Zealand. Joseph R. ISBN 978-0387-31278-1. As with other quinoline antimalarial drugs, the mechanism of action of quinine has not been fully resolved. The bark is cheaper than bark of ' Cinchona ', and as it has an intense taste it is used for making tonic water. The Peruvians would mix the ground bark of cinchona trees with sweetened water to offset the bark's bitter taste, thus producing tonic water. In the years that followed, cinchona bark, known as Jesui...
https://en.wikipedia.org/wiki/Quinine
*  Calcipotriol
effects Interactions Pharmacology Mechanism of action. ... Physical and chemical properties References External links. 2 ... Skin atrophy. Interactions. Mechanism of action. However, it has ... Calcipotriol Calcipotriol. MedlinePlus = a608018 pregnancy AU = B3 pregnancy US = C legal AU = S4 legal CA = Rx-only legal UK = POM legal US = Rx-only routes of administration = Topical. bioavailability = 5 to 6% metabolism = Hepatic. Medical uses Contraindications Adverse effects Interactions Pharmacology Mechanism of action. Physical and chemical properties References External links. 2 Contraindications. Hypersensitivity, use on face, hypercalcaemia, or evidence of vitamin D toxicity are the only contraindications for calcipotriol use. Adverse effects. Adverse effects by frequency:. Very common > 10% frequency. Common 1–10% frequency. Allergic contact dermatitis Hypercalcaemia Photosensitivity Changes in pigmentation Skin atrophy. Interactions. Mechanism of action. However, it has been shown to have comparable aff...
https://en.wikipedia.org/wiki/Calcipotriol
*  Opioid
to refer to any chemical compound with morphine-like activities ... duration of action, whereby metabolic breakdown such as '' ... evaluation is a chemical compound with the code number TRV130 ... Adverse effects Tolerance. ACHESON personal communication to refer to any chemical compound with morphine-like activities"'. The withdrawal symptoms for opiates may include severe dysphoria, craving for another opiate dose, irritability, sweating, nausea, rhinorrea, tremor, vomiting and myalgia. Finally, opioid effects adverse or otherwise can be reversed with an opioid antagonist such as naloxone or naltrexone. Opioid antagonists remain the standard treatment for respiratory depression following opioid overdose, with naloxone being by far the most commonly used, although the longer acting antagonist nalmefene may be used for treating overdoses of long-acting opioids such as methadone, and diprenorphine is used for reversing the effects of extremely potent opioids used in veterinary medicine such as etorphine and ...
https://en.wikipedia.org/wiki/Opioid
*  T-2 mycotoxin
animals. History Chemical properties Mechanism of action ... Although several US chemical weapons experts have identified “yellow ... Food and Chemical Toxicology 2013, 60 0 , 218-237 and can ... fungus which is toxic to humans and animals. History Chemical properties Mechanism of action Metabolism Synthesis Toxicity Exposure. Toxic effects. Effects on animals. In Mycotoxin prevention and control in foodgrains, 1989. Although several US chemical weapons experts have identified “yellow rain” samples from Laos as trichothecenes, other experts believe that this exposure was due to naturally occurring T-2 mycotoxin in contaminated foods. These features are mainly responsible for the biological activity of the compound and make it highly toxic. J.; Cano-Sancho, G.; Sanchis, V., Mycotoxins: Occurrence, toxicology, and exposure assessment. Food and Chemical Toxicology 2013, 60 0, 218-237 and can induce aptosis. H., Oxidative stress-mediated cytotoxicity and metabolism of T-2 toxin and deoxynivalenol in animals and...
https://en.wikipedia.org/wiki/T-2_mycotoxin
*  Template:Chemical agents/CA table
Template:Chemical_agents/CA_table Template:Chemical_agents/CA_table. '''Classes of chemical ... ''''' '''''Mode of Action''''' '''''Signs and Symptoms''''' ''''' ... Template:Chemical agents/CA table Template:Chemical agents/CA table. 'Classes of chemical weapon agents'. 'Class of agent' 'Agent Names' 'Mode of Action' 'Signs and Symptoms' 'Rate of action' 'Persistency'. ' Nerve agent. Nerve '. Tabun GA VX nerve agent. VX VR nerve agent. VX is persistent and a contact hazard; other agents are non-persistent and present mostly inhalation hazards. Most Arsine s Cyanogen chloride Hydrogen cyanide. 'Cyanogen chloride/hydrogen cyanide': Cyanide directly prevents cells from using oxygen. Non-persistent and an inhalation hazard. Vesicant/Blister '. Sulfur mustard HD, H Nitrogen mustard HN-1, HN-2, HN-3 Lewisite L Phosgene oxime CX. Agents are acid -forming compounds that damages skin and respiratory system, resulting burns and respiratory problems. 'Mustards': Vapors: 4 to 6 hours, eyes and lungs affected more rapid...
https://en.wikipedia.org/wiki/Template:Chemical_agents/CA_table
*  Excitatory synapse
synapse in which an action potential in a presynaptic neuron ... probability of an action potential occurring in a postsynaptic ... cell. Chemical vs electrical synapses Synaptic ... An 'excitatory synapse' is a synapse in which an action potential in a presynaptic neuron increases the probability of an action potential occurring in a postsynaptic cell. Chemical vs electrical synapses Synaptic transmission Responses of the postsynaptic neuron Types of excitatory neurotransmitters Acetylcholine. In order to trigger the process of chemical synaptic transmission, upstream activity causes an action potential to invade the presynaptic terminal. These neurotransmitters bind to a variety of receptors on the postsynaptic cell membrane. If a neurotransmitter binds to a receptor with a reversal potential that is higher than the threshold potential for the postsynaptic neuron, the postsynaptic cell will be more likely to generate an action potential and an excitatory postsynaptic potential will occur EPSP. On the ot...
https://en.wikipedia.org/wiki/Excitatory_synapse
*  Agonist
'''agonist''' is a chemical that binds to a receptor and activates ... agonist causes an action, an antagonist blocks the action of the ... agonist causes an action opposite to that of the agonist. {{ ... thumb|320px|Agonists activating hypothetical receptors. right|thumb|320px|Efficacy spectrum of receptor ligands. An 'agonist' is a chemical that binds to a receptor and activates the receptor to produce a biological response. Whereas an agonist causes an action, an antagonist blocks the action of the agonist and an inverse agonist causes an action opposite to that of the agonist. {{anchor|Full agonist|Types}}Types of agonists Activity Potency. Types of agonists. Receptors can be activated by either endogenous such as hormone s and neurotransmitter s or exogenous such as drugs agonists, resulting in a biological response. An endogenous agonist for a particular receptor is a compound naturally produced by the body that binds to and activates that receptor. For example, the endogenous agonist for serotonin r...
https://en.wikipedia.org/wiki/Agonist
*  Action spectrum
action spectrum action spectrum image chlorophyll ab spectra ... en svg an action spectrum is the rate of a ... in a specific chemical reaction some reactant s are able ... action spectrum action spectrum image chlorophyll ab spectra en svg an action spectrum is the rate of a physiological activity plotted against wavelength of light it shows which wavelength of light is most effectively used in a specific chemical reaction some reactant s are able to use specific wavelengths of light more effectively to complete their reactions for example chlorophyll is much more efficient at using the red and blue spectrum s of light to carry out photosynthesis therefore the action spectrum graph would show spikes above the wavelengths representing the colors red and blue see also photosynthesis absorption spectrum chlorophyll a external links category photosynthesis...
https://en.wikipedia.org/wiki/Action_spectrum

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How do I live with short term memory loss?


Namenda is one of the drugs which are helpful in reducing the chemical actions within the brain which might contribute to some of the Alzheimer’s disease symptoms.
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you could keep note of your day. Every hour write in your diary - and so you don't forget to , set alarms on your phone reminding you to : ) 

There are ways round it. The technology we have today will help you pull through.

Sticky notes on mirrors and doors helps too x

Good luck x


When is it appropriate to use opiates?


I have been given this question by my science teacher, and I cannot seem to find the answer. Should opiates be used by people which have extreme conditions and pains like cancer?
Do you think she is referring to severe drugs such as morphine? Or harmless pain killer like panadol.
So far I have found the chemical action of opiates on the nervous system, how they work, and their side effects.
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She's referring to drugs such as morphine. 
I can tell you that if it is legal, if it's being prescribed by a doctor, and if the patient is not abusing the medication but REALLY needs it, that a compassionate doctor should allow the patient to use it. 
I've had chronic nerve pain for 25 years. For the first 9 years no doctor would give me anything strong enough, and those were the worst 9 years of my life. On a scale of 1-10, my pain was a 10, 24/7. It felt like there was a hot branding iron on my eyeball. 
FINALLY, after seeing over 60 doctors, spending over $100,000, traveling around the country, and crying every day, I found a CARING doctor who could just see it in my face how much pain I was in. He sent me to UCLA to see a famous neuro-opthalmologist who said that I had a damaged optic nerve, and drug therapy was my only option. Surgery was impossible.
So I've been on Morphine Sulphate every day, but I haven't needed more and more pills to help my pain, because my body really needs the Morphine.
People who only take it to get high, need more and more to get high. I don't get high. It just takes the pain away. Thank the Lord.
Great question deserves a star.  Thank you. :)


What causes the tooth to decay. What eats away the enamel, what is the chemical action that is happening?


Where are the chemicals coming from that cause the decay.  What is the nature of the chemcals?
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Our mouths are full of bacteria. Bacteria do the damage to your teeth indirectly. When we eat sugars, bacteria use the sugars to attach themselves to your teeth (biofilms) and they eat the sugars creating an acidic by-product (lactic acid). That acid by-product demineralizes your teeth slowly creating a cavity.


HOw do those sunless tanner cremes work? I use Loreal skin lotion with self tanner, does it just stain the ski


skin, or is their a chemical action going on to produce the color?  I always feel really hot after applying it... Thanks!
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DHA (dehydroxyacentone-aka self tanner) is similar to food colouring.
To have it apply as evenlly and natural as possible please follow this CRUCIAL steps:
1) shower and EXFOLIATE to remove the dead skinf or an even tan
2) apply the moisturizer as evenly as possible and wash your hands immediatly! dont apply to the bottom of your feet because the palms of our hands, bottom of feet, nipples and eyes (lid and below) dont contain melanin (tanning cell) therefore dont tan, applying it there will look fake.
3) allow it to absorb for 12 hours
4) shower the next day!! this is important to remove the excess dye that did not absorb into the pores, leaving it on will look heavy and fake, once you shower it should look more natura

Self tanners are tricky they are a dark brown and if your skin is white it will blend to orange.
Try a spray tan (not mystic!!) or get a base tan (real) before hand, it works better over top a darker skin tone, it wont show as much streaking or discoloration!
Do a test spot, if i use too much DHA i break out!
Have fun! and if you can use a tinted moisturizer over a sefl tanner, it builds the tan lightly over time and looks better!


What chemical acid peel is best for moderate acne scars and hyperpigmentation?


I was looking up at home chemical peels and there are all sorts of different acids to choose from like glycolic, lactic, and salicylic.  I will be doing the peels on my lower back where my acne scars are.  I don't care about pain or discomfort I just want whatever will work best and fastest.
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The results of TCA peel are frequently less dramatic than and not as long lasting as those of a phenol peel. In fact, more than one TCA peel may be desirable to realize the most wanted result. The improvement from a TCA peel is usually shorter than with a phenol peel. Phenol is the strongest of the chemical liquid and makes a profound peel. It is used mostly to take care of patients with coarse facial wrinkles, areas of blemished or damaged skin caused by sun exposure or precancerous growths. Because phenol sometimes lightens the treated areas, your skin pigmentation may be a determining factor as to whether or not this is an appropriate treatment for you. I suggest you look for more information on www.chemicalpeel.org


After a chemical miscarriage when am i able to start ttc again?


I just had a chemical miscarriage and I'm wondering when is it good to start trying for another one?
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After a chemical pregnancy you can start TTC again right away. I had 2 of them so I know they can be hard to deal with but medically they consider them more of a late period then a miscarriage. (i know that sounds so insensitive but its what they kept telling me). I tried right away after mine! I had one in dec 2009 and was pregnant by early the next year!


What's the difference between chemical hair thinning and just cutting layers to thin it?


are the results different?
how much does chemical thinning usually cost?
is there a way to make it REEALLY REALLY thin without chemicals?
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idk what chemical hair thinning is but i always thin my hair.
when you get it cut, ask for them to thin it. have the stylist thin it a lot. they can make it as thin as you want. 
oh but watch out because if you straighten your hair, after getting it thinned it can damage it...


What effects does being involved in a chemical fire have on one's body?


I was a victim of being involved with chemical fire. I inhaled the fumes of many chemicals, some of which were, gasoline, turpentine, old paint, bathroom cleaner, glass cleaner motor oil and some other unknown chemicals that were removed from the scene. After a period of over three years I am having health issues. Trouble breathing, raspy voice, fatigue. What effect does inhaling various fumes have on my immune system?
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Well it is all down to what burned them, the lungs are the first issue, they will place you into a coma so they can sort that out first, then they will cover the body in gel and work out the best way to treat the skin while you are in a coma. When they have your breathing and skin treated they will wake you up.

If you are still having issues you need to go back to the doctor, some chemicals take year for the body to deal with and this could be just that.