Synopsis: Chemistry & chemical compounds: Chemistry & chemicals: Chemical:


Livescience_2013 06247.txt

 The fennel releases chemicals that slow other plants'growth so the researchers think the chili plants grow faster in anticipation of the chemicals

or volatile chemicals was poohed roundly pooh in the 1980s but Karban and others went on to prove that plants including sagebrush warn their neighbors of impending danger by wafting chemical signals into the air.

At times in my career I've tried to push new ideas and it's been very difficult Karban said.


Livescience_2013 06576.txt

Syria however is not a signatory to the U n. Chemical Weapons Convention (which strengthened the Geneva Protocol)

and in 2012 the Syrian government threatened to use chemical and biological weapons in case of an attack.

Syria is recognized widely as having a large stockpile of chemical and biological weapons. Effects of nerve agents Because the alleged poisonous gas attacks in Syria are unconfirmed it can't be determined


Livescience_2013 06665.txt

The adhesive was dissolved finally using chemicals. A truck carrying 8000 gallons (more than 30000 liters) of a Japanese synthetic blood drink inspired by the HBO series True Blood caused a gory mess


Livescience_2013 06700.txt

and drinks said study researcher Danielle Reed a geneticist at Monell Chemical Senses Center in Philadelphia.


Livescience_2013 06707.txt

 Electronic cigarettes turn nicotine and other chemicals into a vapor that's inhaled by the user.

and nicotine among other chemicals including propylene glycol. For all of the differences between e-cigarettes and regular cigarettes e-cigarettes still contain nicotine

and that the chemicals are of a pharmaceutical grade. Â In the meantime Seidman worries that e-cigarettes simply assist smokers who wish to bring e-cigarettes into places such as airports where the smoker would


Livescience_2013 06840.txt

Under certain chemical conditions gold solubility can be forced said Chris Anderson an environmental geochemist and gold phytomining expert at Massey University in New zealand.

Once the crops reach their full height treat the soil with a chemical that makes gold soluble.

The chemicals involved in making gold soluble also induce the plants to take up other soil contaminants such as mercury arsenic

Cyanide and thiocyanate the same hazardous chemicals used by mining companies to get gold to leach out of rock must be used to dissolve gold particles in soil water.


Livescience_2013 07073.txt

Emerging research indicates omega-3s may boost levels of the brain chemicals serotonin and dopamine decreasing depression and violence.


Livescience_2013 07386.txt

or phytochemicals the chemicals in plants responsible for deep colors and smells which can have numerous healthful benefits.


Livescience_2013 07503.txt

which is the chemical responsible for the heat in chili peppers. Preliminary studies also suggested that capsaicin prevents weight gain.

But for results that can be trusted doctors look for many human trials of a chemical with many participants.


Livescience_2013 07551.txt

Klee and his colleague Linda Bartoshuk a psychologist have found that volatiles chemicals in fruits


Livescience_2013 07652.txt

But these floral odors which consist of reactive chemicals called volatiles react with other substances in the atmosphere;


Livescience_2013 07709.txt

One chemical rule of thumb true in most cases but not always is that for every 18 degrees Fahrenheit (10 degrees Celsius) increase in temperature the amount of chemical reaction taking place say in a plant


Livescience_2013 07987.txt

and plastic-producing chemical) is to blame for the deaths. Though no one is certain why melamine is causing so much trouble it can cause kidney stones.


Livescience_2013 08009.txt

Global Leaders Agree to Phase out Heat-Trapping Chemical (Op-Ed) A clear path forward is now finally starting to emerge on climate change.


Livescience_2014 00045.txt

When this aptly named chemical is digested it breaks down into sulfur-containing compounds which have a strong unpleasant scent.


Livescience_2014 00088.txt

and Ohio rivers according to a new study led by the U s. Geological Survey (USGS). Such abnormalities are linked to estrogen-mimicking chemicals

and streams from agricultural runoff and human waste the researchers said. 12 Worst Hormone-Disrupting Chemicals

& Their Health Effects The sources of estrogenic chemicals are most likely complex mixtures from both agricultural sources such as animal wastes pesticides

Estrogenic chemicals disrupt the endocrine system which regulates the release of hormones like estrogen and testosterone interfering with the fish's ability to reproduce.

Researchers with the USGS previously found intersex smallmouth bass in the Potomac river Basin similarly linked to endocrine-disrupting chemicals or EDCS.


Livescience_2014 00110.txt

Phytochemicals are chemicals in plants that are responsible for color smell and flavor. Research shows that they have numerous healthful benefits according to the American Institute for Cancer Research.

Antioxidants are produced chemicals by the body or found in fruits vegetables and grains. Antioxidants can help find

These chemicals boost detoxifying enzymes and act as antioxidants reducing oxidative stress. They also may affect estrogen levels which may help reduce breast cancer risk.

Both chemicals may help protect against macular degeneration an incurable condition that blurs central vision and cataracts a clouding of the eye's lens.


Livescience_2014 00215.txt

One of the goals is to find which chemicals are having the biggest effect and then find ways of delivering those to the point of action in the form of supplement capsules


Livescience_2014 00437.txt

The deep-sea mushrooms were preserved in chemicals that destroyed their DNA and cells hampering classification. Just said he hopes more tiny Jell-o-like creatureswill someday surface in another deep-sea expedition so modern genetic studies can reveal their evolutionary branch.


Livescience_2014 00472.txt

or other chemicals but online home and garden forums are full of complaints about these swimming holes'dark side.


Livescience_2014 00531.txt

In the meantime expensive chemical treatments may keep enough hemlocks alive long enough to find a solution. 6 Invasive Pests Threatened by Cold weather Next time


Livescience_2014 00630.txt

it prohibits the use of certain chemicals and inorganic fertilisers which usually results in lower yields and hence higher prices.


Livescience_2014 00725.txt

because there are no recommended intakes for these plant-based chemicals and uniform data on the amount of these phytochemicals in foods are also lacking she said.


Livescience_2014 01021.txt

The Environmental Working group maintains a list of the produce items that it considers to be the most heavily sprayed with pesticides and other chemicals.


Livescience_2014 01060.txt

I would soon learn saturated with farm chemicals. Although our entire history in that place depended on farming within the climate's limits my father like his neighbors had grasped on to new technology allowing him to irrigate out of the vast but virtually nonrenewable Ogallala Aquifer.


Livescience_2014 01408.txt

The use of natural biodegradable products as an alternative to synthetic chemicals has shown remarkable improvements in maintaining fruit quality

Synthetic chemicals are used currently to control postharvest diseases but consumers worry about the chemical residues they leave on fruit their environmental impact

or blanching and most importantly using natural biodegradable products as an alternative to synthetic chemicals. Once proper postharvest technologies are used efficiently food losses can be minimised and the problem of food insecurity alleviated.


Livescience_2014 01465.txt

Scientists at the Institute for Food Research have discovered that potatoes contain chemicals called kukoamines which are associated with lowering blood pressure.

Vitamin b6 helps create useful brain chemicals including serotonin dopamine and norepinephrine according to the University of Maryland Medical center.


Livescience_2014 01609.txt

For example cooking meat at high temperatures can produce cancer-causing chemicals. Meat proteins may also promote tumors'growth by triggering growth hormones


Livescience_2014 01753.txt

Microscopic fungi called yeast turn the naturally occurring sugar in fruit into a chemical known as ethanol


Livescience_2014 02156.txt

#Broccoli Extract May Reduce Autism Symptoms A chemical called sulforaphane derived from broccoli sprouts may help improve symptoms in some people with autism a small new study suggests.


Livescience_2014 02338.txt

The ideal treatment is one that is completely safe free of harmful chemicals readily available without a prescription easy to use and inexpensive according to the AAP.

However these chemicals are known to be toxic to humans and should be used with caution according to the Agency for Toxic Substances and Disease Registry.

This means that these chemicals need to be reapplied to the scalp seven to 10 days after the initial treatment.

There are also several other chemicals that can be used to treat lice including lindane which is available as a cream or a shampoo.

This chemical has been known to cause severe seizures in children and cannot be prescribed to individuals who weigh less than 110 pounds (49.9 kilograms) according to the AAP.

Other chemical treatments have also been linked to dangerous side effects in children which is why organizations such as the NPA do not recommend the use of chemical treatments for lice.


Livescience_2014 02486.txt

Some species in that family called cherry millipedes can release hydrogen cyanide a poisonous chemical when disturbed by predators.


Livescience_2014 02495.txt

The scientists discovered 14 sherds with the earliest direct chemical evidence for the making of pulque in Central america.


Livescience_2014 02647.txt

Rotundone is the main chemical responsible for the smell of pepper (called a character impact odorant.

So when wine experts describe a Shiraz as peppery they re not making it up it contains the same chemical as pepper.

and smell are essentially little chemistry labs that conduct loads of experiments to determine which chemicals are present in food drinks and air.

and can therefore detect different chemicals. And for some of us our equipment is more sensitive.


Livescience_2014 02654.txt

Cigarette smoke contains thousands of compounds including 69 known to be carcinogens chemicals that are involved directly in causing cancer.


Livescience_2014 02773.txt

Methyl mercury is a toxic chemical that can pass through the placenta and can be harmful to an unborn baby's developing brain kidneys and nervous system.


Livescience_2014 03093.txt

Nixdorf's research was presented at the National Meeting & Exposition of the American Chemical Society in San francisco last week.


Livescience_2014 03099.txt

UCS is a member of the Safer Chemicals Healthy Families Coalition which includes nearly 400 organizations and businesses.


Livescience_2014 03280.txt

Once such chemicals are in a pure form and researchers understand their effects on the body then they could be put in clinical trials for use in cancer multiple sclerosis diabetes glaucoma


Livescience_2014 03334.txt

and fenthion used by horticulturalists to keep Queensland fruit fly (also called Q-fly) at bay after finding that these chemicals pose an unacceptable risk to human health.


Livescience_2014 03421.txt

but they have more genes that produce huge amounts of phenolic compounds UV-absorbing chemicals that collect inside the bark.


Livescience_2014 03722.txt

Loss of habitat and agricultural environments as well as the widespread use of pesticides and chemicals in farming are believed to be contributing to the current bee crisis throughout the United states. The value of pollination to agriculture is estimated at more than $200 billion each year worldwide


Livescience_2014 03887.txt

The lead researcher of the new study Dr. Kirsten Brandt at Newcastle University has been studying naturally occurring chemicals found in certain vegetables called polyacetylenes for many years.

This however is only the first step in testing any potential new anticancer chemicals. In their study Brandt and her colleagues also used a mouse model as proxy for humans

As with any plant carrots are a combination of hundreds of different chemicals including beta-carotene

Dissecting exactly which chemicals in plants are observed responsible for health benefits is notoriously tricky.##oewe may be able to figure this out as white carrots are rich in polyacetylenes

Sarah hopes that contrasting these two varieties of carrots may allow the research team to pinpoint the chemicals that are responsible for their early cancer-protective findings

and make sure that by looking at polyacetylenes they are focusing their research on the right chemicals.


Livescience_2014 03960.txt

In the past decade as the use of this potent chemical has skyrocketed monarch populations have plummeted. This week NRDC petitioned the U s. Environmental protection agency (EPA) to urgently reexamine how


Livescience_2014 03973.txt

Other deadly viruses and possibly chemical contaminates play a roll as well. To stave the losses the USDA program will pay farmers


Livescience_2014 04048.txt

In a recent report NRDC focused on a single legal loophole that allows hundreds if not more than a thousand chemical additives into the U s. food supply those unpronounceable ingredients on the back of the box bypassing safety review by the U s. Food

if it doesn't know the identity of these chemicals in the first place or if it can't review the evidence demonstrating that their use in food is safe.


Livescience_2014 04056.txt

and cigarette exposure but less commonly discussed are chemicals found in plastic household cleaning products

or flame-retardant chemicals said Dr. Naomi Stotland a professor of gynecology at the University of California San francisco (UCSF) and a physician at San francisco General Hospital and Trauma Center.

For example chemicals called phthalates are found in air fresheners and dish soap and have been linked to obesity and birth defects.

The researchers noted that a 2011 study of more than 250 pregnant women found that all of them carried environmental chemicals in their bodies that could be passed onto the fetus.

and her colleagues surveyed 2500 obstetricians finding that 78 percent said they believed counseling their patients about chemicals in the environment could reduce harm to the baby.

because they felt they didn't have enough knowledge about such chemicals and didn't want to cause fear or anxiety in their patients.

Many women feel a mistaken belief that you need to use strong chemicals to get your house clean

Many plastics release toxic chemicals such as vinyl chloride or BPA according to a document released by UCSF researchers called Toxic Matters.

Other women not just those who are need pregnant to know about environmental chemicals too Conry said.


Livescience_2014 04060.txt

The findings published today (June 25) in the journal PLOS ONE are based on chemicals lingering in bits of fossilized feces perhaps the oldest human poop known to science.

But two samples also had a dash of 5b-stigmastanol a chemical produced when the gut breaks down phytosterol a cholesterol-like compound that comes from plants.

He added that scientists need a much better reference database for the profile of chemicals they should expect to see in the fossilized feces of different animals such as bears and humans.

Researchers also need a better understanding of how these chemicals degrade over time he said.


Livescience_2014 04191.txt

The taste of chocolate comes from a mixture of chemicals many resulting from the roasting process in

Phenylethylamine another family of chemicals is found in chocolate in very small amounts. It is a naturally occurring substance with a structure that is closely related to synthetic amphetamines


Livescience_2014 04228.txt

Protect Public health Not Toxic Chemicals (Op-Ed) The FDA has linked ractopamine to nearly a quarter-million reported adverse events in pigs (more than half of those pigs were sickened


Livescience_2014 04253.txt

They respond to chemicals with lock -and-key mechanisms that resemble how animals smell. Plants have specific photoreceptors

When part of a plant gets eaten that causes distress chemicals to propagate through the plant

A disease or pest infestation in a neighboring plant sends out chemical signals that cause nearby plants to respond.

It gives off a chemical so the plant defends itself. Researchers have shown also corn seedlings lean toward sounds with a 220-Hertz frequency the same tune emitted by the plants'roots


Livescience_2014 04330.txt

In 4-ethyloctanal we identified a novel chemical that had never been demonstrated in nature before.


Livescience_2014 04406.txt

and colon-and liver-cleansing schemes to rid the body of harmful chemicals. In this new study a team led by Dr. Thomas Kensler who holds joint positions at Johns hopkins university in Baltimore

The liver the primary organ to detoxify chemicals never needs to be cleaned because it doesn't work like the lint filter it's commonly portrayed to be.

The liver detoxifies chemicals by changing their composition into a less-reactive state. Chemicals that the liver can't detoxify simply pass through it unchanged at the risk of harming other organs.

The colon never needs to be cleaned either. The theory of autointoxication in which a dirty colon creates toxins that are reabsorbed into the body was disproved nearly 100 years ago

or juice can locate all these diverse chemical families within the body and safely and magically escort them out of the body.


Livescience_2014 04779.txt

What the study indicated is that there may not be a single cause of CCD it could be a complex web of many chemicals that involves different types and classes of pesticides and fungicides.


Livescience_2014 04867.txt

and other chemicals that promote cancer and heart disease. 3. Limit or avoid dairy products to reduce the risk of prostate cancer.

The reason is that cancer-causing chemicals called heterocyclic amines (HCAS) are created when creatine and amino acids in skeletal muscle aka meat are cooked at high temperatures.


Livescience_2014 04918.txt

and unless you're eating an organic orange peel covered in chemicals. If you do eat the peel you'll get a good amount of nutrients.


Nature 00012.txt

Cutting out the chemicals: Nature Newsozone experts are exploring ways to curb powerful greenhouse gases of their own making under the Montreal Protocol,

a network of experts worldwide and a 20-year track record of handling these types of chemicals.

We created these chemicals and we can get rid of them, says Durwood Zaelke, president of the Institute for Governance & Sustainable Development, an advocacy group in WASHINGTON DC.

We have the chemicals. We have the wherewithal within the treaty. It's just an administrative issue.

Emissions of some ozone-depleting chemicals will continue for some time and even in 2100 long-lived CFCS will remain the dominant ozone destroyers.

But schedules are in place to phase out most of the remaining chemicals of concern. The ozone story is winding to a close,

when analysing chemicals. And Fahey says Montreal's experts have performed well on that account. He co-authored a 2007 paper estimating that

depending on which chemicals fill the void. This is largely why the Montreal parties decided to weigh in on HFCS now.

The chemical giant Dupont, based in Wilmington, Delaware, is concerned more about industrial HFC refrigerants than incidental HFC by-products, for

better industrial processes and, ultimately, the development of new, more climate-friendly chemicals, says Mcfarland.

Chemicals in early refrigerants contributed to the hole in Earth's ozone layer-->Â See also Correspondence'Time running out to deal with banks of greenhouse gases


Nature 00041.txt

The directive promotes the use of non-chemical pest-control methods, bans aerial crop spraying without specific authorization and curbs the use of pesticides in areas such as parks and playgrounds.

The Swedish Chemicals Agency (KEMI) estimates that the compromise package will result in just 23 existing substances being banned,


Nature 00642.txt

Nature Newsresearchers have created transgenic maize plants that fight off pests by emitting a chemical to attract insect-killing nematode worms. 1the method,

since the volatile chemical would diffuse away, or be washed away by rain, if it were not being emitted continually by the plants it would be better to guide the nematodes to the plants most in need of protection,


Nature 00650.txt

The chemical was approved for agricultural use by the US Environmental protection agency in October 2007, prompting protests from activists and scientists.


Nature 00664.txt

At issue is a set of apparently conflicting assessments of the chemical's health hazard. In 2007, the EPA concluded that health standards could be met by proper use of masks and procedures,

and is a replacement for methyl bromide a chemical that has been found to eat away at the ozone layer,

The EPA approved methyl iodide in October 2007, prompting protest at the time including from a group of chemists familiar with the toxic properties of the chemical in the lab

. I have read enough papers with cautions around the use of the chemical that it made


Nature 00691.txt

says Pushpito Ghosh, director of the Central Salt and Marine Chemicals Research Institute in Bhavnagar.


Nature 00734.txt

The US Environmental protection agency (EPA) has agreed to set new rules governing emissions of mercury and other toxic chemicals from power plants by November 2011,


Nature 00797.txt

The US Environmental protection agency (EPA) laid out White house-backed principles for a radical reform of US legislation regulating toxic chemicals, at present controlled by the 1976 Toxic Substances Control Act.

She wants to strengthen the EPA's authority to clamp down on dangerous chemicals, and for chemical manufacturers routinely to give the agency toxicity data.


Nature 00855.txt

If those chemicals are being sprayed in those areas, then it is quite possible that you will get concentrations that cause toxicity,


Nature 00993.txt

The method can be tailored to produce a host of high-value chemicals, including molecules that mimic standard petrol,

enabling them to convert precursor molecules directly into fuels and other chemicals. The team then inserted genes from other bacteria to produce enzymes able to break down hemicellulose.


Nature 01024.txt

such as the climate or a particular environmental chemical, that affects one or more pigmentation genes, says Fang.


Nature 01110.txt

German chemicals company BASF has received its first approval to market genetically modified seeds. Its herbicide-tolerant soya bean'Cultivance,


Nature 01203.txt

Nature Newsthe European commission last week approved Amflora a genetically modified (GM) potato developed by German chemical company BASF.


Nature 01251.txt

the firm has engineered strains of yeast to produce hydrocarbon fuels and other chemicals from sugarcane feedstocks.

US chemical regulation looks set for an overhaul with the introduction of the draft Safe Chemicals Act.

-and-safety information to be provided for all chemicals, and will pass the burden of proof of safety to the manufacturers rather than the regulators,


Nature 01272.txt

which can lead to concentration of these chemicals in the environment and negative effects. The results are mixed that's why it is important not to speak of GMOS in general


Nature 01358.txt

and another protester against the use of the chemical. You have to have a lot of faith that there won't be accidents.

which release chemicals that deter insects but these can be expensive or difficult to implement.

The chemical is registered already for use in 48 states. The agency does not have figures on how much methyl iodide is being used at present,


Nature 01366.txt

Organic fields where only a limited number of man-made chemicals can be used had far greater evenness than those where pesticides were applied regularly.


Nature 01461.txt

So far, only a potato with modified starch content Amflora, developed for industrial rather than food use by German chemical company BASF,


Nature 01567.txt

¢www. icm2010. org. in 22 26 august The American Chemical Society holds its autumn meeting in Boston, Massachusetts,


Nature 01620.txt

and animal manure in China has resulted in serious water pollution and substantial waste of phosphorus, a nonrenewable inorganic chemical.

Soils in many parts of the world are deficient in the chemical, which is required for plant growth.

With a limited labour force but ample subsidized chemical fertilizer available in most of rural China, dumping this phosphate-rich animal manure into waterways has become an easier and cheaper option than using it to fertilize cropland.


Nature 01854.txt

HFCS are the third-generation chemical designed to replace hydrochlorofluorocarbons (HCFCS themselves a replacement for the original ozone-eater, chlorofluorocarbons.

which has phased successfully out dozens of chemicals over the past two decades. Advocates say the protocol could be used to tackle global warming

and China actually spent destroying the chemical. You have the countries that are benefiting financially from this there at the table,

the chemical (dubbed HFO-1234yf) is 360 times less potent as a greenhouse gas than the current refrigerant, HFC-134a,

in order to speed up the transition towards more climate-friendly chemicals, says Durwood Zaelke, who heads the Institute for Governance and Sustainable Development, an advocacy group in WASHINGTON DC.


Nature 01946.txt

Red wine drug Drug company Glaxosmithkline (GSK) has halted all development of a proprietary formulation of resveratrol a chemical found in red wine

Instead, the company is focusing on other chemicals thought to activate the same biological pathway as resveratrol.


Nature 01967.txt

Bisphenol A ban The European commission has agreed to ban the common chemical bisphenol A from baby bottles across the European union by mid-2011.


Nature 02082.txt

Business Biofuel offering Gevo, a company that genetically modifies microbes to produce chemicals from plant sugars,

People Stolen secrets A former research chemist at the chemical giant Dow was last week found guilty of stealing trade secrets,


Nature 02104.txt

when the chemical was discovered in many water supplies. Perchlorate interferes with the production of thyroid hormones and mainly leaches into the environment from its use in the manufacture of rocket fuel and explosives.


Nature 02307.txt

With a limited labour force but ample subsidized chemical fertilizers available in most rural areas, dumping nutrient-rich animal manure has become an easier and cheaper option than using it to fertilize crops.


Nature 02429.txt

and the animals it houses, all survived unscathed a massive chemical explosion at a nearby plant on 14 june.


Nature 02794.txt

and were introduced to replace chemicals that destroy stratospheric ozone. As potent greenhouse gases, their regulation falls under the United nations climate framework,

Chemicals data gap Companies are failing to provide the safety data required by Europe's expansive chemicals law REACH, according to a study by the Centre for Alternatives to Animal Testing at the University of Konstanz in Germany.

and found basic information missing on chemicals'developmental and reproductive toxicity. It warns that up to 1. 6 million animals might be used in toxicity tests for the 4


Nature 02826.txt

These rice-fish co-cultures could lessen the environmental impact of agricultural chemicals and help make rice farming more profitable,


Nature 02912.txt

F. Roberts/Alamyfracking worry The US Environmental protection agency (EPA) has said that chemicals associated with fracking, a controversial technique that involves pumping high-pressure fluids into shale to force out natural gas,

and other chemicals in groundwater can't definitely be linked to fracking, despite the many public protests against the practice (pictured).


Nature 03006.txt

in theory, be engineered to produce a variety of other useful chemicals and fuels.""This is very impressive work it really is a groundbreaking achievement,


Nature 03013.txt

and methane and the more esoteric fluorinated chemicals. The data should help researchers trying to measure


Nature 03029.txt

Anastas, a pioneer of green chemistry, spent much of his time reforming the agency's programme for assessing the risks of individual chemicals,


Nature 03115.txt

Synbio troubles US synthetic biology firm Amyris which engineers microbes to process plant sugars into useful chemicals saw its share price plunge by 28%on 10 february,


Nature 03387.txt

the plants can break down both of the chemicals in Dow s newly formulated herbicide Enlist."

The chief worry is that new herbicide blends will accelerate the emergence of resistance to multiple chemicals.

"These are traits that could overcome more than one chemical mode of action and see an increase in selection pressure,


< Back - Next >


Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011