Synopsis: Chemistry & chemical compounds:


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.


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These pairs form sequences called genes that tell cells how to make proteins. It's a huge genome.


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what's required for other sources of commonly eaten protein like pork and poultry the researchers found.

In contrast the same number of calories from beef is much more taxing on the environment requiring 160 times more land eight times more irrigation water 11 times more greenhouse-gas emissions and 19 times more fertilizer


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and increased exposure to ultraviolet or UV light brought on by climate change may be behind chemical changes in the bark of cork oaks.

These proteins help the tree grow normally even under stressful conditions like drought and high temperatures and promote cell division that makes the bark grow thicker.

Bad cork trees have fewer of these shock proteins but they have more genes that produce huge amounts of phenolic compounds UV-absorbing chemicals that collect inside the bark.

Teixeira and colleagues found that poor-quality cork trees have twice as many phenolic compounds as good-quality cork trees

which suggests the bad-quality cork trees are adapting to protect themselves from elevated radiation levels.

The researchers also discovered that the trees with thin layers of bark have lots of lenticular channels small airways that allow gas exchange between the bark and the outside air.


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For most mammals the sweet-taste receptor that responds to sugars in plant-based carbohydrates is made up of two proteins:

and mushrooms is made up of the proteins T1r1 and T1r3. But after the chicken genome was sequenced in 2004 researchers noticed the birds lacked the gene that encodes T1r2 a crucial component of the sweet-taste receptor.

and cheetahs true carnivores that also don't have a taste for sweets#they found these species still have a nonfunctional pseudogene (a nonfunctional gene that's lost its protein-coding powers) for the sweet-taste receptor.

The researchers then tested how the taste-receptor proteins produced by these genes reacted to different flavors in a cell culture.

Then to look for the molecular basis for this change in function Baldwin and colleagues made taste-receptor hybrids using different parts of the chicken and hummingbird receptors.


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At the same time carbon dioxide (CO2) a greenhouse gas was depleted from earlier levels. This may have contributed to the cooling climate and the extinction event at the end of the Devonian.


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Perhaps surprising passing gas from morning through the night is normal and healthy the natural byproduct of your gut bacteria digesting your food.

But as with poop consistently foul gas could be a sign of something serious. Misconception No. 3:

and aid in the final stages of digestion including water absorption and the fermentation of fibers and vitamin absorption particularly vitamins K B1 B2 B7 and B12.


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when our bodies produce allergic antibodies to the proteins in tree and grass pollens. The antibodies then sit in the immune cells we have on all surfaces of our bodies in contact with the outside.

When more pollen is inhaled the proteins then cause these antibodies to burst and release histamine.

The lightning in thunderstorms can break pollen grains into smaller particles which can lead to acute outbreaks of hay fever.

Chris Corrigan lectures for Glaxosmithkline and Allergy Therapeutics and consults for Novartis Stallergenes and Allergy Therapeutics.


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and selecting cigarette paper to maximize the ingestion of nicotine adding ammonia to make the cigarette taste less harsh and controlling the physical and chemical make-up of the tobacco blend.*'


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or other extreme event can be attributed to climate change steadily increasing average temperatures caused by the rise of greenhouse gases in the atmosphere only serve to exacerbate the impacts of droughts.


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The findings confirm that natural Amazon forests help reduce global warming by lowering the planet's greenhouse gas levels the researchers said.</

</p><p>When scientists account for the world's carbon dioxide their totals suggest some of the greenhouse gas disappears into land-based carbon traps.

These natural carbon sinks such as forests absorb and store carbon dioxide helping to lower the greenhouse gas levels in the atmosphere.

Dead trees release their stored carbon back into the atmosphere through decay.</</p><p>Full Story:<

leading particle colliders scientists have determined the mass of the heaviest elementary particle the top quark.</</p><p>The measurement was made using the Large Hadron Collider (LHC) at CERN in Geneva Switzerland and the Tevatron at Fermilab in Batavia Ill.


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If you must have bread choose breads with at least 3 grams of protein and 3 grams of fiber.

The protein will help keep you feeling satisfied longer and the fiber will slow glucose digestion. 9 Snack foods:


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It happens because the immune system recognizes a similarity between proteins in some pollens and those in fruits vegetables nuts and spices.


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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


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This chemical forms from isoprene a volatile organic compound that trees can give off when temperatures are hot.

Trees also emit compounds called terpenes. Both isoprenes and terpenes interact with sunlight to create a sort of natural smog.


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and a bit of maroon-colored airglow#faint light emitted by molecules in the atmosphere and it made for dramatic hues in the scene.


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The frozen treat contains less fat and less air and is served at a higher temperature than conventional ice cream lending it a more intense concentrated flavor.

but may contain up to 2-percent butterfat giving it a slightly more gelato-like creaminess.


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which contain gelatin a protein obtained from animal byproducts. Vegans also stay away from food items that were processed using animal products.

because some refineries use bone char (incinerated animal bones) as a filter to whiten cane sugar.


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Just as volcanic ash entombed the citizens of the ancient Roman city dental plaque preserved bacteria and food particles on the skeletons'teeth.

The sticky bacteria on teeth trapped particles of food and other debris and over time the calcium phosphate in saliva the same mineral found in bones

We knew that calculus preserved microscopic particles of food and other debris but the level of preservation of biomolecules is remarkable a microbiome entombed

and recovered some of the first evidence of food molecules from ancient dental plaque. The DNA in food found in the plaque matched pigs sheep bread wheat and vegetables such as cabbage.


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I call the unholy trinity) not how healthy (how much Vitamin a etc.).In short it can be hard to trust the food industry.

because they are fortified with vitamins. Indeed the program's sponsors Kraft Unilever and other big players benefited from having most of their products getting that Check in 2009 they voluntarily halted the program that they voluntarily started after the FDA issued a statement saying it was analyzing the misleading food labels.

The healthy elements of this product such as its low fat or sugar content do not make this product healthy.

Because in the end the amount of Vitamin a in Lucky Charms however prominently displayed and clearly explained may just not matter.


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#What Is Whey Protein? Whey protein is a popular diet supplement among people of all ages.

Baby formulas include it as do nutrition shakes for the elderly. Weight-loss supplements contain whey powder as an appetite suppressor yet young men buy whey protein powder by the gallon in hopes of building muscle mass.

Much of whey protein's appeal is in its texture. Whey is the liquid left behind

when milk is turned to cheese. The protein in whey is one of the two main proteins in milk the other is called a protein casein.

When an acidic substance such as vinegar is mixed into milk these two proteins will separate--the casein proteins glob together to form solids called curds leaving the whey as a liquid.

Whey protein may show up in your favorite baked goods or ice cream as a way to replace the consistency of fat without the actual fat.

Like all proteins whey protein is made of building blocks called amino acids. Protein in the body is used primarily for muscle growth

and to repair tissues. When people digest food they break down the proteins into amino acids and then use those amino acids to build new proteins.

Body builders prize whey protein as a good source of the amino acids leucine isoleucine and valine.

Together these amino acids make up the BCAAS (3-branched chain amino acids) that are important in building muscle.

There are nine essential amino acids that humans must get from food to survive and thrive. In addition to BCAAS whey protein also contains all the essential amino acids.

Early studies have linked whey protein supplements with a stronger immune system and athletic endurance. But whey protein supplements are touted as a way to increase energy fight stress

and improve mental focus. Very early studies indicate whey protein may have a role in the body's cancer-fighting abilities.

Whey protein is said also to help control blood sugar lower cholesterol treat asthma and possibly prevent allergies.

Do whey protein supplements work? Whey protein supplements can certainly provide high-quality protein in the diet.

But most health organizations including the Centers for Disease Control and Prevention recommend getting your protein from food

and not supplements if given the choice. Meat poultry fish legumes tofu eggs nuts seeds and milk are all good sources of the essential amino acids people need.

Early studies have shown taking whey protein supplements before or after exercise can improve muscle strength lean-muscle growth and immunity.

One study of 387 U s. Marines put protein supplements to test during basic training. At the end of 54 days the protein-supplemented group showed stronger immune systems with 33 percent fewer medical visits than the Marines given a placebo or a carbohydrate and fat supplement.

Marines taking the protein supplements also experienced less muscle soreness and had 28 percent fewer medical visits for muscle and joint problems.

The members of the group taking protein supplements were also less likely to visit doctors for infections during the study published in 2003 in the Journal of Applied Physiology.

Among other protein supplements small studies show whey protein may have an edge at increasing muscle mass.

In one study researchers at the Human Performance Laboratory at the University of Connecticut divided 63 men and women into groups receiving a soy supplement a whey supplement or a carbohydrate supplement.

Over the course of a nine-month training regimen researchers found that those taking whey protein gained several more kilograms of muscle mass than people taking the other supplements according to the 2013 article published in the Journal of the American

College of Nutrition. But the timing of taking whey protein supplements can change how effective they are.

A 2009 joint statement by the American Dietetic Association (ADA) Dietitians of Canada (DC) and the American College of Sports Medicine (ACSM) noted that eating protein during exercise did little to improve athletic performance.

The statement recommended eating a low-fat high-carb snack that is moderate in protein content before exercise to make fuel available to the muscles.

Protein digested after exercise provides the amino acids the body needs to repair and build new muscles.

Eating whey protein right after exercise could be especially useful because whey protein has a high level of leucine an easily absorbed amino acid according to Joslin Diabetes Center.

Many of whey protein's purported health benefits are linked to a powerful antioxidant called glutathione.

People with HIV liver disease diabetes and various cancers can all develop low glutathione levels in the body.

The body can make its own glutathione from the amino acid cysteine and whey happens to be high in cysteine.

Studies confirm eating whey protein increases the levels of glutathione in the body. However there is only preliminary evidence investigating

whether whey protein has a meaningful effect on the health of people with conditions linked to low glutathione.

Small studies done in people show whey protein may have a modest effect on asthma symptoms inflammation after stroke and some liver conditions by indirectly increasing glutathione levels.

Animal studies show whey protein supplements fed to rats can prevent inflammation and early signs of complications from obesity and diabetes according to a 2012 review published in the journal Lipids in Health and Disease.

The review also found promising evidence that whey protein can trigger the release of hormones that make people feel full

and very preliminary evidence that whey protein may help lower high blood pressure. Whey protein also shows a potential for lowering blood sugar.

A study of 14 people with type 2 diabetes found that combining whey protein with a high-sugar meal increased people's insulin production

and quelled the expected blood sugar spike following the meal. The study was published i 2005 in the American Journal of Clinical Nutrition.

Are whey protein supplements safe? The safety of whey protein supplements depends largely on the dose.

Most Americans eat twice the protein they need according to the National institutes of health (NIH. Excess protein of any kind will be stored as fat in the body

and can increase the risk of dehydration. Too much protein may also increase a person's risk for calcium loss

and osteoporosis. That's because acids are released into the bloodstream when protein is digested and the body uses calcium to neutralize these acids.

It is possible that the extra calcium needed will be leeched from bones according to the NIH. However studies are inconclusive on this point.

Some research shows high-protein diets are correlated with more fractures but other research has found people with high-protein diets have increased bone density according to the Harvard School of Public health.

Athletes can safely eat more protein than people who are not physically active. In fact an athlete who does not get enough protein will sustain some muscle damage

and take longer to recover. The average person needs 0. 8 grams of protein a day per every kilogram of body weight.

This translates to about 50 to 65 grams of protein a day or roughly 4 ounces of meat and 1 cup of cottage cheese.

On the other hand an athlete may need 1. 2 grams or even up to 2. 0 grams of protein per kilogram of body weight a day according to various statements by the American Dietetic Association the American College of Sports Medicine and the International Society of Sports Nutrition.

Because whey is a dairy product people with milk allergies should avoid whey protein. People who are lactose intolerant should also take caution.

Different whey protein powders can vary in calories and fat and lactose content. Whey protein isolate is 90 percent protein

and contains little to no fat cholesterol or lactose. But whey protein concentrate can have 29 to 90 percent protein

and as the proportion of protein goes down the fat and lactose content in a whey protein supplement increases.

Protein supplements of any kind may cause additional strain on the kidneys if a person has a kidney condition.

Most supplements on the market haven't caused problems but there is less oversight of supplements sold in the United states than of prescription drugs.

In their joint statement the American Dietetic Association and the American College of Sports Medicine noted some cases of protein supplements also containing anabolic steroids.

One 2010 experiment by Consumer Reports tested 15 protein drinks purchased online or from stores in the New york metro area.

The study found three products that would exceed the daily limit of arsenic cadmium and mercury set by the U s. Pharmacopeial Convention

if a person consumed more than the three recommended servings. Whey protein may also interact with some medications.

Whey protein supplements can decrease the effectiveness of the Parkinson's drug levodopa. Whey protein supplements may also reduce how much of the osteoporosis drug alendronate is absorbed by the body making the medicine less effective.

Whey protein supplements may reduce the effectiveness of quinolone and tetracycline antibiotics. People with diabetes may experience changes in blood sugar when taking protein supplements.

It is best to talk to your doctor about your athletic goals and personal needs before starting protein supplements.

Overall the International Society of Sports Nutrition considered a short-term regimen of whey protein supplements safe for most healthy adults.

Follow Live Science@livescience Facebook & Google+.


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#Missing Link? Mississippi Floods, and a Great City Disappears The mysterious abandonment of one of North america's first big cities may be linked to a massive Mississippi river flood 800 years ago a new study finds.

In the bottom of an oxbow lake next to Cahokia Ill. which was the most powerful and populous city north of Mexico in A d. 1200 lie the buried remains of a flood that likely destroyed the crops and houses of more than 15000 people.

Researchers investigating pollen records of Cahokia's farming and deforestation discovered distinctive evidence of the flood:

a silty layer 7. 5 inches (19 centimeters) thick. The silt is dated to A d. 1200 plus

or minus 80 years said Samuel Munoz lead study author and a geographer at the University of Wisconsin-Madison.

Cahokia to Area 51: The 10 Strangest Places On earth The city wasn't completely abandoned until A d. 1350

but the catastrophic flood could have shaken the confidence of the town sited near modern-day St louis Munoz said.


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Those simultaneous trends would drive the need for more power generation which could simply add more carbon dioxide and other greenhouse gases into the climate system.

and pressing for public policy solutions now due to the fact that greenhouse gases emitted today can last in the atmosphere for hundreds of years effectively baking in#a certain amount of warming.#


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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.

And a compound which can be extracted easily from something as common and cheap as carrots is bound to arouse interest.

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

Because of the chemical composition of the polyacetylenes she predicts that cooking them in fat may cause more to be lost into the fat than preparing the carrots in water by boiling or steaming.

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.


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in addition to the warming caused by the heat trapped by accumulating greenhouse gases in the Earth s atmosphere.


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and Vitamin c and they are also low in calories have only a trace of sodium and no fat or cholesterol.

1 large apple (8 oz/242 g) Raw edible weight portion Calories 130 Calories from Fat 0*Percent Daily Values(%DV

Apples are loaded with Vitamin c. Almost half of an apple's Vitamin c content is just under the skin

so it's a good idea to eat apples with their skins. Flores said that this is also where apples'fiber is found.

and antioxidants Flores explained that they work in the cell lining to decrease oxidation resulting in lowering risk of cardiovascular disease.

However using chemical rinses and other treatments for washing fresh produce is recommended not because the Food and Drug Administration has evaluated not then for safety or effectiveness.


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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

Today's farms use it to grow Monsanto's genetically modified Roundup Ready corn and soy engineered to tolerate the herbicide which the company also manufactures.


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


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and chemical additives are hardwired into our food system and make up the majority of the American diet.

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

But because of a giant loophole in food safety law the generally recognized as safe or GRAS loophole chemical manufacturers can decide for themselves

when chemical additives enter our food supply. All this adds up to a serious lack of oversight intowhat goes into Americans'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.

Ultimately the U s. Congress needs to close the GRAS loophole that allows manufacturers to leave the FDA and the public in the dark about the safety of chemical additives in food.

and should move now to end the inherent conflict of interest in the current system for reviewing the safety of chemical additives in food

The widespread use of chemical additives is just one of several deep-rooted problems in our industrialized food system.

Our industrialized agricultural system relies heavily on the intensive use of chemical fertilizers herbicides and pesticides


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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.

Cook store and heat in containers such as glass where we are worried not about chemical exposures.

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


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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.

evidence came in the form of coprostanol a lipid created when the body metabolizes cholesterol a molecule made by all animals.

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.

The researchers billed their study as the first direct evidence that Neanderthals had an omnivorous diet.

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.


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and they have different levels of carbon and oxygen than lower leaves the researchers reported at the meeting.


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In a somber scene-setter for the climate summit in New york this week the World meteorological organization the United Nation's meteorological office released a report showing that world carbon emissions in 2013 reached a record high and atmospheric

carbon is increasing at the fastest rate seen in more than thirty years. Some hard questions face the international order which has spent much of that period in an interminable round of meetings meant to combat climate change.

and crop rotation to sequester carbon in soil and so forth. Adaptation involves diversifying crop portfolios combining grazing with cropping using water


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and reuse consumed DNA and the proteins which it encodes. There is no inherent danger in consuming DNA.

only if it is able to encode proteins that are harmful to the human body. For that to happen it would first need to be incorporated into your genome within the cell nucleus where all of your other genes reside.

so that ultimately the foreign protein was produced. So if there is PLANT DNA in your blood it will need to jump through lots of hoops before it can produce a foreign protein.

There is no evidence by the way that DNA in your blood can do this because if cf-DNA has always been in our blood we would have noticed plant proteins in our cells.


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