Synopsis: Chemistry & chemical compounds:


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But the payoff the size of the environmental win in terms of reducing greenhouse gas emissions and reducing algal blooms linked to agriculture is huge.


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or compounds discovered inside of them said botanist Michael Balick curator of the exhibit  during a press preview of the show.

More recently scientists have harnessed chemicals from the plant to create digitalis medications such as digoxin which is administered often to patients with congestive heart failure.

The active agent in curare a chemical known as tubocurarine was found to be useful as a muscle relaxer during surgeries and electroconvulsive therapy.

But hunters in the Amazon also extracted the chemical from the plant's woody vines to make paralyzing blow darts.

In addition to the powerful antioxidant Vitamin c the juice contains a chemical that can disable enzymes needed to break down medications in the digestive system.


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and Livescience from a Youtube video claimed that a scientist was making hamburger meat from proteins extracted from raw sewage.


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The measures which aim to reduce the nation's carbon pollution and prepare communities for the effects of global warming signal the administration's commitment to tackling climate change

preparing the country for the short-and long-term effects of climate change cutting the amount of carbon pollution in the United states

because the longer we wait before we start reducing carbon emissions the faster we will have to reduce them to avoid catastrophic damage.

Reducing emissions The president's plan will direct the Environmental Protection Agency (EPA) to establish standards for greenhouse gas emissions for new and existing power plants.

Currently existing plants contribute about 40 percent of carbon emissions in the United states. In 2009 Obama pledged to reduce greenhouse gas emissions below 2005 levels by the year 2020.

which are potent greenhouse gases that trap heat in the Earth's atmosphere and contribute to the destruction of the ozone layer.


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Carbon isotopes (atoms of the same element that have revealed different molecular weights that the trees were about 52000 years old.

when we are trying to get radiocarbon dates Harley said. It can really make the sample undatable unusable.


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and inhale the lead particles it contains. And children who play in soil can ingest lead

Adding lime to the soil may raise the ph making the soil more alkaline or basic.


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blue-green biliverdin and red-brown protoporphyrin which are both breakdown products of hemoglobin (the oxygen-carrying protein found in the red blood cells of all vertebrates.


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In the world's forests We're trying to make the step from knowing where there's forest to how much carbon is stored in the forest


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In the world's forests We're trying to make the step from knowing where there's forest to how much carbon is stored in the forest


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The chemical signature of these grains is identical and extremely rare so rare in fact that scientists suspect both grains came from a single supernova.

Using an instrument called a Nanosims 50 ion microprobe which magnifies objects 20000 times graduate student Pierre Haenecour of Washington University in St louis uncovered the single grain in one of the meteorites.


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10 Interesting Facts About Food Cooking can also reduce certain chemicals in a vegetable that inhibit the absorption of minerals including important minerals like zinc iron calcium and magnesium.

Admittedly some nutrients are lost in cooking such as Vitamin c and certain B vitamins. But plants are so excess in nutrients that even this breakdown is insignificant in practical terms said John Mcdougall creator of the Mcdougall Program a vegan-friendly starch-based diet.

and vegetables creates cancer-causing chemicals. The solution however is not to stop all cooking

But humans make their own digestive enzymes to break down large food molecules into smaller ones.

In reality toxins can accumulate anywhere in the body particularly in fat and fatty tissue but also in proteins and bone.

But the liver is more of a chemical-processing plant than a filter; it breaks down toxins as they pass through.

6'Magic bullet'Cures That Don't Exist Another argument is that burning fat in this case on a raw vegan diet would release toxins from the body.

Fats cells merely get bigger or smaller depending on the amount of fat within the cell that's used.

if the fat molecule it is attached to is burned. The toxin is now free to attach to other fat molecules.

If it does mobilize with other recently liberated toxins in the case of extreme starvation then the toxin could become toxic

or for any vegan animals that accumulate toxins in their fat; they don't cleanse themselves with their raw plant-based diet.

The most apparent problems are nutritional deficiencies particularly for vitamins B12 and D selenium zinc iron and two omega-3 fatty acids DHA and EPA.

and these are high in fat and not healthful when eaten in excess. If it's not nuts then it's bananas

In fact a child raised on a raw vegan diet without proper supplementation would likely develop severe neurological and growth problems due to a lack of Vitamin b12 and other nutrients.


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Video See the Smoking Caterpillars in Action It's really a story about how an insect that eats a plant co-opts the plant for its own defense said study researcher Ian Baldwin a professor at the Max Planck Institute for Chemical

If a compound is not volatile it isn't easily vaporized and so couldn't be emitted from tiny pores.


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The research on eastern red cedar trees all between 120 and 500 years old also showed changes in the types of carbon

and the change in isotopes in the early 1980s the research went into a different direction...

sulfur isotopes (variations of an element with a different number of neutrons) pointed to pollution

and carbon isotopes showed that the trees'stomata (the pores that are opened and closed to regulate the exchange of carbon dioxide

Meanwhile sulfur isotopes in the wood of tree rings approached levels not seen since the preindustrial age.


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#Reducing Greenhouse Gas Emissions Could Prevent Premature Deaths Reducing the flow of the greenhouse gases that spur global warming could prevent up to 3 million premature deaths annually by the year 2100

Greenhouse gases such as carbon dioxide trap heat helping warm the globe. The surge in carbon dioxide levels due to human activity since the Industrial revolution is now causing an overall warming of the planet that is having impacts around the globe.

Past studies have analyzed how reductions in greenhouse gas emissions would also improve air quality. 5 Ways Climate Change Affects Your Health

and air pollutants such as ozone and particulate matter (tiny particles suspended in the air). The researchers found that aggressively reducing greenhouse gas emissions could help prevent 300000 to 700000 premature deaths annually byâ the year 2030 two-thirds

of which would be in China. By 2050 such reductions would prevent 800000 to 1. 8 million premature deaths annually.

We found reducing greenhouse gases could lead to a pretty striking reduction in air pollutants

and our study suggests serious benefits to reducing greenhouse gases in addition to helping slow down climate change West said.

but here we show that reducing greenhouse gas emissions can have near-term local benefits for health as well

In the future researchers can analyze the impacts of efforts to intentionally improve air quality as well as reduce greenhouse gas emissions West said.


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and low-fat cheese were less likely to have symptoms of depression and were also less likely to be diagnosed with depression during the follow-up period compared with those who ate an unhealthy diet that included sausages hot dogs sugary desserts processed foods and snacks.


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Morphological studies based on the shape of a species'shell or other features often contradicted the results of molecular testing.

what we're finding at the base of the diatom tree are things that are long and tubular much like the tube inside of a paper towel roll said Edward Theriot professor of molecular evolution at The University of Texas at Austin and director of its Texas Natural science

and chloroplast genes of more than 200 diatoms and Bolidomonas (a closely related genus). They wanted to test the prevailing understanding of where certain diatoms fall on the evolutionary tree

Sometimes the best tree from molecular data looks radically different from what morphology tells us to expect Theriot explained.

For some of the lab's more focused studies like the evolution of the rock snot's mucus-producing capability the researchers sequenced the transcriptomes (all of the MESSENGER RNA molecules expressed from an organism's genes) of half a dozen species to identify the key genes

for the molecular production of the mucilage. People have been trying to characterize that mucilage chemically for 20 years

but at the very beginning at the point of the molecular machinery that assembled and allowed for the secretion of that sugar in the first place.


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The structure of a molecule is far too small to be seen with even the most powerful of microscopes.

Rosalind Franklin used the process of X-ray crystallography to make an image of the DNA molecule that was used by Watson

Cell membranes are made up of two layers consisting of fats sugars and salts. The fats are on the inside of the membrane where they can avoid touching the water that surrounds the cell.

Detergent molecules have two ends. One end of a detergent molecule is attracted to fat and the other end is attracted to water.

When you wash your dinner plate; the fat-loving end of the dish detergent molecule attaches to the grease from your hamburger

and the water-loving end attaches to the water in the Sink in the cheek solution you were using the detergent to move the broken up cell membranes away from the DNA. 3. Why did I use pineapple juice?

Pineapple juice and meat tenderizer both contain enzymes that further help to break down the cell membrane. 4. Why did I use ice cold alcohol?

The DNA molecule is a very long strand with a gentle twist. Your visible DNA material is actually many thousands of these strands clumped together.


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t taste capsaicin the chemical that gives chili peppers their kick enabling birds to eat spicy peppers

and malnourished if they eat too many a href=http://www. livescience. com/20339-fight-obesity-fat-tax-policy. html>fatty foods</a high in calories that lack the vitamins and minerals


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The pigs'embryos were injected with a molecule from bioluminescent jellyfish that carries instructions to make green fluorescent protein or GFP.

This technique allows researchers to attach harmless glow-in-the-dark tags to specific proteins in animals.


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which fat is concentrated in the abdominal area. Researchers in The netherlands have found that excess abdominal

or belly fat as seen in the so-called apple-shaped body as opposed to the pear-shaped body where the fat is lower down on the hips

because fat is weighing down on kidneys crushing them Kwakernaak said The researchers speculate that the cause might be from the fat triggering inflammation or insulin resistance

or fat creating free radicals which can damage the kidneys at a cellular level. Our study now provides a possible mechanism for this increased renal risk seen in obesity for further investigation Kwakernaak told Livescience.

Researchers at University of California Davis found that gluteal adipose tissue that is that fat around the backside thought to be harmless if not useful for sitting for long periods secretes proteins associated with inflammation


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You ll often hear me speak about say Vitamin d omega-3 fatty acids and fiber. And I m certainly not the only one.

but also it has a great deal of protein and fiber. Good stuff! Healthy Bites appears on Myhealthnewsdaily on Wednesdays.


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#Should You Eat High-Protein Products? Although popular high-protein bars shakes and other products aren't the best way to get your protein experts say.

In 2012 19 percent of new food and beverage products launched in the United states were labeled as being high-protein according to Mintel a market research company.

That's higher than anywhere else in the world including India (9 percent) and the United kingdom (7 percent) Mintel said.

Proteins are essential nutrients found inside every cell in the body. They are used for growth

In general about 10 to 35 percent of your daily calories should come from protein according to the Centers for Disease Control and Prevention (CDC.

Adult women should eat about 46 grams of protein a day and adult men should eat about 56 grams a day.

Most people in the United states actually get more than enough protein. A 2009 to 2010 U s. food survey found that on average women eat about 70 grams of protein per day

and men eat about 100 grams. See 3 Things You Need to Know about Eating Protein.

A bar or shake might seem like an easy way to get the recommended amount of protein

but you're better off getting the nutrient from real food some experts say I never recommend protein supplements said Katherine Tallmadge the author of Diet Simple (Lifeline Press 2011).

People need to be eating real food. High-protein bars and shakes are often high in calories

(and sugar) too and don't leave people feeling full in the same way that a well-rounded meal with a variety of flavors

Good sources of protein include meat poultry fish legumes (such as dry beans and peas) eggs milk and tofu according to the CDC.

Yogurt is a major protein source Tallmadge said. For people who want a nonperishable food to take on hikes

Heather Mangieri a nutrition consultant and spokeswoman for the Academy of Nutrition and Dietetics agreed that ideally people should get protein from food.

But some people who have high caloric needs such as athletes may find it more convenient to get their protein

along with necessary extra calories from a high-protein product Mangieri said. Mangieri notes that our bodies typically use a maximum of 20 to 30 grams of protein from a single meal.

 Beyond that any additionalâ protein in a meal or bar won't confer an extra tissue-repair

or musclebuilding benefit Mangieri said. So it is important to space out protein consumption throughout the day consuming about equal portions at each meal.

For instance if you eat three meals a day you could consume about a third of your protein at breakfast a third at lunch and a third at dinner.

Pass it on: It's best to get protein from real food rather than from bars shakes or other supplements.

Follow Rachael Rettner on Twitter@Rachaelrettner or Myhealthnewsdaily@Myhealth mhnd. We're also on Facebook & Google+o


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and legumes as well as fish and very low in saturated fat and animal fat Tallmadge said. Studies showing its benefits go back to the 1950s Tallmadge explained.

But even people in the Mediterranean are moving away from this traditional diet and adding more cheese

and animal fat products to their meal plan she said. The main sources of fat in the traditional Mediterranean dietdiet come from olive oil nuts

and fish and these foods are eaten in moderation said Heather Mangieri a nutrition consultant and spokesperson for the American Dietetic Association.

While nuts and seeds are a source of omega-3 fatty acids a type of healthy fat it's not clear how much of this healthy fat we actually get by eating them Mangieri said.

That's because these foods actually contain alpha linolenic-acid acid a compound our bodies convert to omega-3 fatty acids.

and minimally processed (extra virgin) is high in compounds called polyphenols which are thought to be responsible for the oil's health benefits Tallmadge said.


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The team then dated the structure using levels of radioactivity in minerals and the ratio of carbon isotopes or molecules of carbon with different numbers of neutrons from charcoal and grains of sand.


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Farmers primarily use chemical insecticides to control pests but many insects are resistant to them.

In the last decade researchers have been investigating bioinsecticides proteins derived from natural sources such as spider venom.

and isolated a small peptide a molecular building block of cells from the deadly substance. They fed the peptide to termites

When ingested by insects the poisonous chemical called orally active insecticidal peptide-1 was as toxic as the synthetic insecticide imidacloprid the group reported today (Sept. 11) in the journal PLOS ONE.

but also for spider-venom peptides that are being considered for therapeutic use study researcher Glenn King of the Institute for Molecular Bioscience at the University of Queensland Australiaâ said in a statement.


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Also during evolution an attraction to scarce calorie-dense foods such as sweets and fats improved our chances for survival.


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Grasses in warm dry regions tend to contain less protein than those in cooler wetter regions.

Protein deficiency slows bison growth early in life resulting in smaller adults. Other grazers like cattle will likely face similar changes in a warming climate Craine said.


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#Some Weight Loss Supplements Contain Amphetamine-Like Compound Some popular weight-loss supplements contain a synthetic compound that is chemically similar to the drug amphetamine according to a new study by researchers at the Food and Drug Administration.

But 9 of the 21 dietary supplements tested were found to have an unnatural compound called beta-methylphenethylamine

This compound has never before been tested in people although animal studies suggest it may behave similarly to amphetamine

None of the dietary supplements resembled Acacia rigidula in terms of their chemical composition. For example nearly all of the supplements had high levels of a compound called phenethylamine

but this compound is found at very low levels in the plant itself. Given the low natural abundance of phenethylamine in the plant materials it appears nearly impossible to achieve the amounts of phenethylamine found in the dietary supplements by formulating them with plant material

or extracts of A. rigidula the researchers wrote. Amphetamine risks The relatively high levels of beta-methylphenethylamine found in nine of the supplements indicate that the ingredient was not an accidental contaminant Cohen said.


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

because the gas bubbles block the flow of water. The more air in the tubes the harder it is for plants to pull in water explains Katherine Mcculloh a plant ecophysiologist at Oregon State university.

but it doesn't really provide a lot of evidence that these are said acoustic communications Richard Karban a University of California Davis expert in how plants communicate via chemical signals.

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.


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The high protein levels in addition to cognitive beliefs about milk being a food may make it more satiating.


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The cubes fizz like soda as they melt because of compressed gas bubbles trapped in the buried ice.

which makes a chemical antifeedant compound. The reason why? I've kept them in small glass chambers for experiments


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Observations of the system revealed a dust trap of millimeter-size grains on one side of the star with smaller micrometer-size particles spread evenly throughout the disc.

The particles astronomers said could eventually clump into a comet factory producing kilometer-size rocks such as those found in the Kuiper Belt outside Neptune's orbit.

Video) Nienke van der Marel a Ph d. student at Leiden Observatory in The netherlands said the researchers original plan was to analyze the gas.

Due to this pressure gradient gas and small micrometer-size particles have slightly slower orbital velocities around the star.

When the millimeter-size bits grow they begin to experience friction with gas and smaller particles.

Eventually the larger particles slow down themselves. When the friction drops their speed below a certain threshold they drift toward the star


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which make up about 10 percent of the Earth's land surface and more than 30 percent of its terrestrial carbon stock.

The results are particularly striking given that wildfires release the forests'stored carbon into the atmosphere potentially exacerbating climate change.


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Metastasizing native tree growth also physically alters the temperature chemistry and biology of the landscape.

They also spew huge amounts of carbon and asthma-inducing particulate matter into the air a big fire is like setting a coal-fired power plant in the middle of a forest.

while reducing fuel loads slashing carbon emissions increasing water runoff to streams and rivers raising revenues and boosting meaningful job growth in rural areas.


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What Is Poisonous Gas? Updated on Friday Aug 30 at 10:15 a m. ET. Reports that the Syrian government has used poisonous gas against rebels in that country's civil insurrection have prompted the Obama administration to consider military action against the government of President Bashar al-Assad.

Though these reports have yet to be confirmed many experts say the videos and photographs from Syria showing dead and injured people would be difficult to fake.

The Syrian government however has denied consistently all allegations of the use of poisonous gas or other chemical weapons.

Poisonous gas has a long grim history of use in warfare. In the ancient Syrian city of Dura-Europos the remains of about 20 soldiers from A d. 256 were discovered by archaeologists in 1930.

or spears but by sulfur gases ignited by the invading Persian army. The 10 Most Outrageous Military Experiments The use of poisonous gas and other chemical weapons was banned by the Geneva Protocol following World war i sometimes referred to as the chemists'war during

which chlorine gas tear gas (ethyl bromoacetate or chloroacetone) phosgene mustard gas and other chemical agents were used by both sides.

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

what type of poisonous gas (if any) is being used. However Dr. Khaled al-Doumi director of a medical center near the site of the alleged attack told Al Jazeera Medically speaking the symptoms indicate that poisoning was a result of phosphorous compounds that could be caused by organic insecticides or sarin gas.

Sarin gas is a man-made lethal toxin with no color taste or odor; it can be inhaled

or absorbed through the skin or eyes. Sarin is a nerve agent that works on the central nervous system

and prevents the body from turning off glands and muscles so these are stimulated constantly. Even a small drop of sarin on the skin can cause someone to twitch

Mustard gas stockpiles According to the BBC Syria also has large stockpiles of mustard gas recognized as a poisonous gas since the 19th century.

Also known as sulfur mustard the compound is named for its distinctive mustard smell which has also been compared to horseradish.

There are a number of other chemical agents that could be used as poisonous gas from chlorine gas

Many international observers believe it could be years before the extent of poisonous gas used in Syria


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while getting adequate protein and fat Cassie told Livescience. Other dishes can be modified to make them Paleo-friendly.

Carb-conscious Many people (including people on the Paleo diet) now follow a gluten-free diet avoiding any foods that contain the protein gluten.

and an excellent source of protein Spritzler wrote. Green beans salad and other low-carb vegetables are important to consume

For the person who's not vegetarian they can get plenty of protein from the turkey.


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while being transported from a beach where it died to a laboratory in the Taiwanese city of Tainan according to BBC News. Gas buildup inside the decomposing cetacean was thought to be responsible for the explosion

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


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But on the scale of the atoms in the universe it looks absolutely paltry in comparison said Scott Aaronson a computer scientist at MIT.</

</p><p>As far back as Archimedes philosophers have wondered how many tiny particles could fit in<a href=http://www. space. com/52-the-expanding-universe-from-the-big-bang-to-today. html>the universe</a>.Archimedes

Current estimates put the total number of atoms in the universe at about 10 to the 80.</


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Medical practitioners for example can use the presence of certain molecules in blood or tissue to diagnose

The proteins known as antibodies are examples of biomarkers indicating possible infection. Chris Remien a postdoctoral fellow at the National Institute for Mathematical and Biological Synthesis uses math to better understand how biological markers relate to the diets of animals

The food and water animals consume leave chemical signatures (biomarkers) in their tissues; however metabolism sometimes alters these signatures.

Research on stable isotope ratios has seen already a number of interesting results. In one case understanding the stable isotope ratios of hair led to the identification of a murder victim by determining her travel history.

It turns out that stable isotope ratios of oxygen and hydrogen in water vary with geography on a continental scale

and so because the stable isotope ratios in drinking water get incorporated into hair a record of travel history is revealed by looking at the isotope composition of scalp hair.

Another example of the usefulness of stable isotope ratios can be found in the tropics where woody plants and grasses

which use different types of photosynthesis have very different carbon isotope ratios. We have used stable isotopes to quantify African elephant diet over time as it relates to rainfall history

which is useful information for elephant conservation. Typically after rainfall grasses become more abundant and constitute a greater portion of an elephant's diet.

Using carbon isotopes in hair we can see exactly how much grass these animals are eating

and how their diet changes with changes in rainfall. Similarly we have used carbon isotopes in fossil soils to determine the fraction of woody cover sites that bear hominin fossils a problem that has implications for the history of our species

. Because woody plants and grasses have very different carbon isotope ratios there is a strong relationship between carbon isotope ratios of soil

and fraction of woody cover. In other research my work on acetaminophen overdose will hopefully have a direct impact in how medical doctors view acetaminophen overdose patients.


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