Chemistry News
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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 39.
Lack Of Jurisdiction Found, Remand Ordered In Case Arising From Refinery Fire
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LAFAYETTE, La. - Remand of a personal injury action arising from a June 2011 fire and explosion at a chemical refinery was granted May 21 for lack of jurisdiction in a case removed to the U.S. District Court for the Western District of Louisiana (Clarise Armstead, et al. v. Multi-Chem Group, et al., No. 11-2136, W.D. La.; 2012 U.S. Dist. LEXIS 71543).
Source: LexisNexis® Mealey's™ Emerging Toxic Torts Legal News - June 6, 2012 Category: Medical Law Source Type: news
Pennsylvania Families Claim Injuries From Exposure To Gas Extraction Chemicals
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WASHINGTON, Pa. - Three western Pennsylvania families allege in a complaint filed May 25 in the Washington County Court of Common Pleas that hydraulic fracturing by natural gas exploration companies has contaminated their domestic water wells and real properties with hazardous chemicals and caused personal injuries (Stavey Haney, et al. v. Ranger Resources-Appalachia, et al., No. 12-3534, Pa. Comm. Pls., Washington Co.).
Source: LexisNexis® Mealey's™ Emerging Toxic Torts Legal News - June 6, 2012 Category: Medical Law Source Type: news
Briefs Filed For June Hearing On Motion To Compel In New York Fracking Lawsuit
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ROCHESTER, NY - The Big Flats, N.Y., residents alleging that their domestic water wells are contaminated with explosive gases and chemicals from hydraulic fracturing by natural gas extraction companies moved April 30 in the U.S. District Court for the Western District of New York to compel discovery from defendant Anschutz Exploration Corp.; Anschutz Exploration filed a response on May 15 in anticipation of a June 29 hearing on the motion (Jason Baker, et al. v. Anschutz Exploration Corp., et al., No. 11-6119, W.D. N.Y.; See 1/24/12, Page 17).
Source: LexisNexis® Mealey's™ Emerging Toxic Torts Legal News - June 6, 2012 Category: Medical Law Source Type: news
Utah Federal Judge Rules Occupational Exposure Claims Barred By Workers' Comp Act
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SALT LAKE CITY - Chemical exposure personal injury claims prosecuted in the U.S. District Court for the District of Utah by two oil refinery workers are barred by the state workers' compensation act, and summary judgment for the employer is appropriate, the presiding judge ruled in an order entered May 25 (E. Lynn Hansen, et al. v. Chevron USA Inc., et al., No. 08-959, D. Utah; 2012 U.S. Dist. LEXIS 73418).
Source: LexisNexis® Mealey's™ Emerging Toxic Torts Legal News - June 6, 2012 Category: Medical Law Source Type: news
I believe exercise can help people beat depression
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Despite what the research published this week says, many people who have lived with depression feel the benefits of a trip to the gym, or even a spot of gardeningThe problem with arguing with science is that it is often an uneven contest, a bit like hitting a steamroller with a stick of rhubarb. You have emotion, anecdotal evidence, a sixth sense; they have hard facts. And the facts here are seemingly indisputable: a new study, conducted by proper university academics, sufficiently large-scale, randomised and controlled, has confounded the experience of countless depression sufferers. The conclusion: all that exercise, the...
Source: Guardian Unlimited Science - June 6, 2012 Category: Science Authors: Mark Rice-Oxley Tags: Health & wellbeing Life and style Depression Mental health Medical research Psychology Science Society The Guardian Features Blogposts Source Type: news
Cannabis lung health risks underestimated
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“One third of people think cannabis is harmless despite the fact that smoking it is 20 times more likely to cause cancer than tobacco,” The Daily Telegraph reported today. The Independent says that young cannabis users “do not realise the huge danger to their health”.
The stories are based on a new report, published by the British Lung Foundation, which says that public awareness of the health consequences of smoking cannabis is “worryingly low”, with almost one-third of the British population believing that smoking cannabis is not harmful to health. This figure rises to almost 40% among those aged under 35, th...
Source: NHS News Feed - June 6, 2012 Category: Consumer Health News Tags: Heart/lungs Lifestyle/exercise Source Type: news
1 million billion billion billion billion billion billion: Number of undiscovered drugs
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A new voyage into "chemical space" – occupied not by stars and planets but substances that could become useful in everyday life – has concluded that scientists have synthesized barely one tenth of one percent of potential medicines. The report estimates that the actual number of these so-called "small molecules" could be one novemdecillion (that's one with 60 zeroes), more than some estimates of the number of stars in the universe.
Source: ScienceDaily Headlines - June 6, 2012 Category: Science Source Type: news
The extraordinary 2,000-year-old computer that you've never heard of
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The Antikythera mechanism was designed to predict movements of the sun, moon and planets. Why isn't it better known?Right, that's enough of the Queen for now. Have you ever heard of the Antikythera mechanism? You have? Well done. If not, I suspect you're in good company and the fact that I learned about it from a fascinating BBC4 programme – the high point of my jubilee weekend – on Sunday night is unlikely to broaden public knowledge as much as we might hope.What was explained in The Two-Thousand-Year-Old Computer – you'll still catch it here on iPlayer – strikes me as staggering for two quite different reasons wh...
Source: Guardian Unlimited Science - June 6, 2012 Category: Science Authors: Michael White Tags: Archaeology Greece Science Astronomy Space Europe World news Queen's diamond jubilee Monarchy The Queen UK news guardian.co.uk Blogposts Source Type: news
New Technique To Study Protein Misfolding Yields Insights Into Parkinson's Disease
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Researchers at the University of Toronto Scarborough (UTSC) used an innovative technique to examine chemical interactions that are implicated in Parkinson's Disease. The work details how a protein called alpha-synuclein interacting with the brain chemical dopamine can lead to protein misfolding and neuronal death. Parkinson's Disease is a neurodegenerative disease which results in loss of motor control and cognitive function. Although the cause isn't known precisely, the disease involves the death of brain cells that produce dopamine, a chemical important in neuronal signaling...
Source: Health News from Medical News Today - June 6, 2012 Category: Consumer Health News Tags: Parkinson's Disease Source Type: news
Fewer Side Effects Likely With Investigational Diabetes Drug
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Drugs for type 2 diabetes can contribute to weight gain, bone fractures and cardiovascular problems, but in mice, an investigational drug appears to improve insulin sensitivity without those troublesome side effects, researchers at Washington University School of Medicine in St. Louis have shown. The experimental medicine works through a different pathway, which could provide additional molecular targets for treating insulin resistance and diabetes. The new study appears online in the Journal of Biological Chemistry...
Source: Health News from Medical News Today - June 6, 2012 Category: Consumer Health News Tags: Diabetes Source Type: news
First Complete Atlas Of RNA-Binding Proteins Could Point To Function Of Genes Linked To Diseases
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In one of the most famous faux pas of exploration, Columbus set sail for India and instead 'discovered' America. Similarly, when scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, set out to find enzymes - the proteins that carry out chemical reactions inside cells - that bind to RNA, they too found more than they expected: 300 proteins previously unknown to bind to RNA - more than half as many as were already known to do so...
Source: Health News from Medical News Today - June 6, 2012 Category: Consumer Health News Tags: Genetics Source Type: news
Units of Measurement Quiz
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If you are familiar with scientific units then this quiz shouldn't be difficult. The trick will be answering all of the questions correctly rather than just most of them. I ...Read Full Post
Source: About.com Chemistry - June 6, 2012 Category: Chemistry Source Type: news
Easy Salt and Vinegar Crystals
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Take a break from whatever you're doing and grow some crystals! Salt and vinegar crystals are a good crystal growing project to try because you probably have all the ingredients ...Read Full Post
Source: About.com Chemistry - June 6, 2012 Category: Chemistry Source Type: news
1 million billion billion billion billion billion billion: Number of undiscovered drugs
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(American Chemical Society) A new voyage into "chemical space" - occupied not by stars and planets but substances that could become useful in everyday life - has concluded that scientists have synthesized barely one tenth of one percent of potential medicines. The report, in the journal ACS Chemical Neuroscience, estimates that the actual number of these so-called "small molecules" could be one novemdecillion (that's one with 60 zeroes), more than some estimates of the number of stars in the universe.
Source: EurekAlert! - Medicine and Health - June 6, 2012 Category: Global & Universal Source Type: news
New technique for detecting mold contamination in homes and other buildings
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(American Chemical Society) With mold contamination of homes an ongoing concern - and a special threat to the 2.5 million foreclosed houses in the US, shuttered with little ventilation - scientists are reporting a new method to detect and identify low levels of airborne mold. The report, which describes a simple, fast method that could provide an early indication of potential contamination, appears in ACS' journal Environmental Science & Technology.
Source: EurekAlert! - Medicine and Health - June 6, 2012 Category: Global & Universal Source Type: news
How plants make cocaine
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(Max Planck Institute for Chemical Ecology) Cocaine is one of the most commonly used (and abused) drugs, but we have almost no modern information on how plants produce this complex alkaloid. Researchers from the Max Planck Institute for Chemical Ecology in Jena, Germany, have just discovered a key reaction in cocaine formation in the coca plant from South America, and identified the responsible enzyme. This enzyme belongs to the aldo-keto-reductase protein family revealing new insights into the evolution of cocaine biosynthesis.
Source: EurekAlert! - Social and Behavioral Science - June 6, 2012 Category: Global & Universal Source Type: news
Winner of Origins of Life Challenge announced
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(Arizona State University) In mid-2011, retired California chemist and entrepreneur Harry Lonsdale issued a challenge to the origin of life scientific community to come up with novel ideas for explaining the mechanism of life's origin, through the Origin of Life Challenge.The winners were announced today by Lonsdale in collaboration with the Origins Project at Arizona State University and its director Lawrence Krauss.
Source: EurekAlert! - Social and Behavioral Science - June 6, 2012 Category: Global & Universal Source Type: news
Nanomedicines promise fewer side effects in treating cancer
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(American Chemical Society) A new generation of cancer treatments based on nanotechnology is making its way out of the laboratory and into the clinic with the promise of targeting cancer cells while steering clear of healthy tissue, according to the current edition of Chemical & Engineering News (C&EN). C&EN is the weekly newsmagazine of the American Chemical Society, the world's largest scientific society.
Source: EurekAlert! - Cancer - June 6, 2012 Category: Cancer & Oncology Source Type: news
Why working-class people vote conservative
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Across the world, blue-collar voters ally themselves with the political right – even when it appears to be against their own interests. Is this because such parties often serve up a broader, more satisfying moral menu than the left?Why on Earth would a working-class person ever vote for a conservative candidate? This question has obsessed the American left since Ronald Reagan first captured the votes of so many union members, farmers, urban Catholics and other relatively powerless people – the so-called "Reagan Democrats". Isn't the Republican party the party of big business? Don't the Democrats stand up for the little...
Source: Guardian Unlimited Science - June 5, 2012 Category: Science Tags: Society Politics US politics Psychology The Guardian Features Source Type: news
Canada moves to regulate 'bath salts' drug
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OTTAWA, June 5 (UPI) -- The Canadian government has begun the process of regulating the chemicals used to make the street drug known as bath salts, the health minister said Tuesday.
Source: Health News - UPI.com - June 5, 2012 Category: Consumer Health News Source Type: news
NRC Report Identifies Opportunities for Improving Undergraduate Education
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According to a new report from the National Research Council, solid evidence exists for what needs to be done to improve undergraduate science education, but these findings have not yet widely implemented.
Results from discipline-based education research in the fields of biology, chemistry, physics, and engineering have yielded insights into ways to improve undergraduate instruction. One example is that traditional lectures are not as successful at imparting information as are student-centered learning strategies, such as interactive learning activities, students working in groups, and incorporation of authentic problems ...
Source: Public Policy Reports - June 5, 2012 Category: Biology Authors: AIBS Source Type: news
Quantitative Redox Proteomics: The NOxICAT Method
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Because of its versatile chemical properties, the amino acid cysteine plays a variety of vital roles in proteins. It can form structure-stabilizing elements (e.g., disulfide bonds), coordinate metal cofactors and is part of the catalytic center of many enzymes. Recently, a new role has been discovered for cysteine: so-called redox-sensitive proteins use the thiol group of cysteine as a specific sensor for Reactive Oxygen Species (ROS) and Reactive Nitrogen Species (RNS). The oxidation of such a redox-active cysteine, e.g., under conditions of elevated cellular ROS or RNS levels (oxidative or nitrosative stress), often resu...
Source: Springer protocols feed by Protein Science - June 5, 2012 Category: Biochemistry Source Type: news
Discovering the Phosphoproteome of the Hydrophobic Cytochrome c Oxidase Membrane Protein Complex
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We describe here a method that enables the analysis of integral membrane proteins by chemical cleavage with cyanogen bromide (BrCN), a method that improves the mass spectrometric detection of hydrophobic proteins. The low abundance of phosphopeptides requires efficient enrichment techniques, such as TiO2-based methods. However, this strategy failed in our hands when just BrCN-cleaved peptides were used. Only an additional size-reduction with trypsin produced peptides with optimal properties for enrichment and MS-identification. Another bottleneck was the correct assignment of phosphoserine and phosphothreonine because pept...
Source: Springer protocols feed by Protein Science - June 5, 2012 Category: Biochemistry Source Type: news
Relative Protein Quantification by MS/MS Using the Tandem Mass Tag Technology
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We describe herein an isoelectric focusing shotgun proteomics workflow for the relative quantification of proteins in complex mixtures by MS/MS using tandem mass tags.
Source: Springer protocols feed by Protein Science - June 5, 2012 Category: Biochemistry Source Type: news
Robust Workflow for iTRAQ-Based Peptide and Protein Quantification
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Quantitative proteomics has become a routinely used technique to globally compare protein content and expression profiles of biological samples, for instance after differential stimulation. In this context, chemical stable isotope-based labeling techniques, such as ICAT and iTRAQ, have been successfully applied in a large variety of studies. Since iTRAQ labels are isobaric, quantitation is conducted on the MS/MS level. Consequently, up to eight samples can be multiplexed and quantified in a single experiment without increasing sample complexity. Here, we present a robust workflow to conduct iTRAQ quantification of biologic...
Source: Springer protocols feed by Protein Science - June 5, 2012 Category: Biochemistry Source Type: news
A Rapid Approach for Isobaric Peptide Termini Labeling
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Isobaric peptide termini labeling (IPTL) is a recently introduced approach to the chemical labeling of peptides with isotopic reagents. Peptides derived from two different samples are labeled at the N terminus and at the C terminus with isotopically labeled reagents that have identical mass differences. To obtain isobaric peptides, labeling is carried out such that the introduced mass increase at one terminus will exactly match the mass decrease at the other terminus (and the other way around). This results in product ion spectra that display the quantitative difference of the peptide signal derived from the two samples fo...
Source: Springer protocols feed by Protein Science - June 5, 2012 Category: Biochemistry Source Type: news
Silver Staining of 2D Electrophoresis Gels
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Silver staining is used to detect proteins after electrophoretic separation on polyacrylamide gels. It combines excellent sensitivity (in the low nanogram range) with the use of very simple and cheap equipment and chemicals. For its use in proteomics, two important additional features must be considered, compatibility with mass spectrometry and quantitative response. Both features are discussed in this chapter, and optimized silver staining protocols are proposed.
Source: Springer protocols feed by Protein Science - June 5, 2012 Category: Biochemistry Source Type: news
Kenya: Pharmacists Say Quacks Spoiling Their Profession
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[The Star]
CLOSE to 50 per cent of pharmacies and chemists are being operated by quacks, pharmacists have said. The Pharmaceutical Society of Kenya chairman Dr Paul Mwaniki said people purporting to be pharmacists are endangering the lives of Kenyans through provision of poor pharmaceutical services.
Source: AllAfrica News: Health and Medicine - June 5, 2012 Category: African Health Source Type: news
Red, White and Blue Electrochemistry Demo
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Turn a series of solutions red, white and blue by electrolyzing water. This is an eye-catching chemistry demonstration that illustrates principles of electrolysis and pH indicators. Plus, the demonstration is ...Read Full Post
Source: About.com Chemistry - June 5, 2012 Category: Chemistry Source Type: news
Researchers Investigate 'Healthy' Obesity Gene
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Why is it that some obese people are healthier than others? This was one of the main questions Dr. Chaodong Wu of the College of Agriculture and Life Sciences - Texas A&M University System - and a group of researchers tried to answer in a recent study. The study, which will appear in a July issue of the Journal of Biological Chemistry, used genetically modified mice to investigate the genetic aspects of why some obese people do not develop certain medical problems typically associated with obesity, especially Type 2 diabetes. Wu noted that Xin Guo, a Ph.D...
Source: Health News from Medical News Today - June 5, 2012 Category: Consumer Health News Tags: Obesity / Weight Loss / Fitness Source Type: news
Coke bottles may require cancer warning label if drink ingredients not changed
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Back in January, the state of California added to its list of cancer-causing chemicals an ingredient commonly used in flavored soda beverages, which has sent major shockwaves throughout the processed food industry. And according to numerous reports, Coca-Cola, PepsiCo...
Source: NaturalNews.com - June 5, 2012 Category: Consumer Health Advice Source Type: news
Cancer phobia: When fear overrides common sense
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When folks here at ACSH hear the term "cancer phobia," we instinctively assume it means the pervasive fear that exposure to certain chemicals or environmental factors will undoubtedly increase one’s risk of cancer.
Source: Health Facts and Fears - June 5, 2012 Category: Consumer Health Advice Tags: Blogs Source Type: news
This Day in Science History - June 6 - Richard Smalley
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June 6th is Richard Smalley's birthday. Richard Smalley is one of the three chemists who discovered several allotropes of carbon called fullerenes. One of these fullerenes is a spherical collection ...Read Full Post
Source: About.com Chemistry - June 5, 2012 Category: Chemistry Source Type: news
Examples of Chemical Changes and Physical Changes
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Are you confused about the difference between chemical changes and physical changes and how to tell them apart? In a nutshell, a chemical change produces a new substance, while a ...Read Full Post
Source: About.com Chemistry - June 5, 2012 Category: Chemistry Source Type: news
Chemical terrorism for the intensivist. - Chalela JA, Burnett T.
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The use of chemical agents for terrorist attacks or military warfare is a major concern at the present time. Chemical agents can cause significant morbidity, are relatively inexpensive, and are easy to store and use. Weaponization of chemical agents is onl...
Source: SafetyLit: All (Unduplicated) - June 4, 2012 Category: Global & Universal Tags: Burns, Electricity, Explosions, Fire, Scalds Source Type: news
The climate change deniers: influence out of all proportion to science | Bill McKibben
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The Heartland Institute's recent shaming has put the denialist camp on the defensive. But they've already done massive harmIt's been a tough few weeks for the forces of climate change denial.First came the giant billboard with Unabomber Ted Kacynzki's face plastered across it: "I Still Believe in Global Warming. Do You?" Sponsored by the Heartland Institute, the nerve center of climate change denial, it was supposed to draw attention to the fact that "the most prominent advocates of global warming aren't scientists. They are murderers, tyrants, and madmen." Instead, it drew attention to the fact that these guys had over-re...
Source: Guardian Unlimited Science - June 4, 2012 Category: Science Authors: Bill McKibben Tags: Climate change scepticism Republicans Barack Obama Nancy Pelosi Newt Gingrich Media Environment Keystone XL pipeline Oil sands Thinktanks Science Science and scepticism US politics United States Obama administration Al Gore Source Type: news
Researchers achieve RNA interference, in a lighter package
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Using a technique known as "nucleic acid origami," chemical engineers have built tiny particles made out of DNA and RNA that can deliver snippets of RNA directly to tumors, turning off genes expressed in cancer cells.
Source: ScienceDaily Headlines - June 4, 2012 Category: Science Source Type: news
Foggers, "bug bombs" are no match for bedbugs, scientists say
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Researchers say bedbugs may be resistant to chemicals, hide in hard-to-reach crevices
Source: Health News: CBSNews.com - June 4, 2012 Category: Consumer Health News Source Type: news
Stem cell scientists take hope from first human trials but see long road ahead
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Much hangs on outcome of first human trials amid funding difficulties, political opposition and public suspicionMarcus Hilton sits in front of the TV and stares at the Sky News headlines scrolling along the bottom of the screen. If he moves his head about, he can find the little patch of vision in his right eye where letters jump from a tiny size to suddenly bigger. It is a small but crucial difference for Hilton, and it represents a huge scientific achievement.Hilton has the distinction of being the first person in the UK to receive a transplant of human embryonic stem cells. He has Stargardt's disease, a condition that d...
Source: Guardian Unlimited Science - June 4, 2012 Category: Science Authors: Sarah Boseley Tags: Stem cells Medical research Biology Science Blindness and visual impairment Health Society The Guardian Features Source Type: news
World-Class Athletes Are Pre-Performance Enhanced
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The London Olympic Games and the Tour de France are on the horizon in Europe. Here in North America, the baseball season is under way, with football soon to follow. All of which means that around the world, in gleaming state-of-the-art facilities and dingy state-of-the-meth-lab basements, chemists are hard at work making molecules for athletes to swallow, snort, apply and inject into one another’s butts. [More]
Source: Scientific American Topic - Medical Technology - June 4, 2012 Category: Consumer Health News Tags: Health,Medical Technology,Everyday Science,More Science,Biology,Society & Policy Source Type: news
New Elements - Livermorium and Flerovium Officially Join the Periodic Table
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Several periodic tables already list flerovium as element 114, with the symbol Fl, and livermorium as element 116, with the symbol Lv. However, according to Lawrence Livermore National Laboratory, these ...Read Full Post
Source: About.com Chemistry - June 4, 2012 Category: Chemistry Source Type: news
New Device Warns Workers Of High Levels Of Airborne Metals In Minutes Rather Than Weeks
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Scientists are reporting development of a new paper-based device that can warn workers that they are being exposed to potentially unhealthy levels of airborne metals almost immediately, instead of the weeks required with current technology. The report on the device, which costs about one cent to make and could prevent illness in the millions of people who work with metal, appears in ACS' journal Analytical Chemistry. Charles Henry and colleagues explain that worldwide, job-related respiratory illnesses are associated with about 425,000 deaths each year...
Source: Health News from Medical News Today - June 4, 2012 Category: Consumer Health News Tags: Water - Air Quality / Agriculture Source Type: news
Smoking Moms: The New Study
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(Ivanhoe Newswire) - An estimated 10-percent of women smoke while pregnant, and smoking is considered the number one reason for adverse effects in children. Cigarette smoke contains over 4,000 chemicals, including cyanide and lead.
Source: Medical Headlines From Ivanhoe.com - June 4, 2012 Category: Consumer Health News Source Type: news
This Day in Science History - June 5 - John Couch Adams
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June 5th is John Couch Adams' birthday. Adams was a British mathematician and astronomer who calculated the existence of a planet outside the orbit of Uranus to explain the irregularities ...Read Full Post
Source: About.com Chemistry - June 4, 2012 Category: Chemistry Source Type: news
What Is an Antinutrient?
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Did you ever watch the cartoon Popeye? Popeye would pop open a can of spinach, fortifying his muscles so he could rescue Olive Oyl. Spinach contains iron, which you need ...Read Full Post
Source: About.com Chemistry - June 4, 2012 Category: Chemistry Source Type: news
Researchers achieve RNA interference, in a lighter package
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(Massachusetts Institute of Technology) Using a technique known as "nucleic acid origami," chemical engineers have built tiny particles made out of DNA and RNA that can deliver snippets of RNA directly to tumors, turning off genes expressed in cancer cells.
Source: EurekAlert! - Cancer - June 4, 2012 Category: Cancer & Oncology Source Type: news
Homemade Firecrackers
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July 4th weekend is coming up, so let's get started making some homemade fireworks. What better way to start than with firecrackers? Firecrackers are essentially gunpowder with a fuse that ...Read Full Post
Source: About.com Chemistry - June 4, 2012 Category: Chemistry Source Type: news
This Day in Science History - June 4 - Franz Xaver
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June 4th is Franz Xaver von Zach's birthday. Franz Xaver was a Hungarian astronomer who was the director of the Gotha Observatory when it first began operations. He enlisted the ...Read Full Post
Source: About.com Chemistry - June 3, 2012 Category: Chemistry Source Type: news
How To Make Colored Smoke Bombs Work
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Regular smoke bombs are easy to make and produce stunning, reliable results. You might think making colored smoke is as easy as adding a chemical that burns with... well... colored ...Read Full Post
Source: About.com Chemistry - June 3, 2012 Category: Chemistry Source Type: news

