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Clean up your life with chemistry life hacks (video)
2015-04-13
(Press-News.org) WASHINGTON, April 13, 2015 -- Ever run out of your go-to cleaning product, and you've got a mess that you just can't leave alone? Have no fear, chemistry is here. Reactions is back with another round of our Chemistry Life Hacks series, and this week it's all about cleaning. Learn how to make your own glass cleaner, keep red wine from staining your carpet and why spit, yes spit, can also be a great cleaning product. Check out the video here: https://youtu.be/IpG3VClxO3c.
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NYU study identifies teens at risk for hashish use
2015-04-13
The recent increase in popularity of marijuana use coupled with more liberal state-level polices has begun to change the landscape of adolescent marijuana use. More potent forms of marijuana, such as hashish, may present a threat to adolescent health. A wealth of research has been conducted to examine risk factors for teen marijuana use; however, studies rarely differentiate between different forms of marijuana.
A new study by researchers affiliated with New York University's Center for Drug Use and HIV Research (CDUHR), was among the first to examine prevalence and correlates ...
Stroke from poor air quality
2015-04-13
Air pollution and smog have health consequences for affected populations ranging from respiratory problems to death. Fine particulate matter especially has become the focus in recent years, because it increases the probability of dying from respiratory or cardiovascular disease. In addition, the risk of stroke is increased, as shown by Barbara Hoffmann and her coauthors in a recent study in Deutsches Ärzteblatt International (Dtsch Arztebl Int 2015; 112: 195-201). In a population of the German Ruhr region, she investigated how often stroke and cardiovascular disease ...
Fragment of continental crust found under south east Iceland
2015-04-13
An international team, including researchers at the University of Liverpool, have shown that south east Iceland is underlain by continental crust.
The team found that the accepted theory, that Iceland consists only of very thick oceanic crust, is incorrect. Maps of crustal thickness produced from satellite gravity data, together with geochemical, plate tectonic reconstruction and mantle plume track analysis (an upwelling of abnormally hot rock), were used to show that south east Iceland is underlain by continental crust which extends offshore to the east.
Professor ...
Graphics in reverse
2015-04-13
Most recent advances in artificial intelligence -- such as mobile apps that convert speech to text -- are the result of machine learning, in which computers are turned loose on huge data sets to look for patterns.
To make machine-learning applications easier to build, computer scientists have begun developing so-called probabilistic programming languages, which let researchers mix and match machine-learning techniques that have worked well in other contexts. In 2013, the U.S. Defense Advanced Research Projects Agency, an incubator of cutting-edge technology, launched ...
Study finds testicular cancer link for muscle-building supplements
2015-04-13
PROVIDENCE, R.I. [Brown University] -- Men who reported taking muscle-building supplements, such as pills and powders with creatine or androstenedione, reported a significantly higher likelihood of having developed testicular cancer than men who did not use such supplements, according to a new study in the British Journal of Cancer.
Moreover, said study senior author Tongzhang Zheng, the associated testicular germ cell cancer risk was especially high among men who started using supplements before age 25, those who used multiple supplements and those who used them for ...
New technology provides superior ability to rapidly detect volatile organic compounds
2015-04-13
Over the past several decades, the progress in micro fabrication technology has revolutionized the world in such fields as computing, signal processing, and automotive manufacturing.
Making various types of instruments smaller is another example of how the use of this technology has produced significant advancements. One such instrument is the gas chromatography system used in a number of scientific, medical, and industrial settings to separate and analyze dangerous, volatile organic compounds in gases, liquids, and solids.
For the past several years, Masoud Agah, an ...
What's in your wine? New study reveals how production methods affect color and taste of pinot noir
2015-04-13
Amsterdam, April 13, 2015 - The taste and color of your wine depends on the methods used to produce it and the chemicals added during production, says research published in Analytical Chemistry Research. The researchers behind the study say wine bottles should carry information about what the manufacturers add during processing - including sugars and acids.
In the study, Dr. Heli Sirén and her colleagues from the University of Helsinki, Finland, analyzed the chemical profiles of eight Pinot Noir wines from different regions - the USA, France, New Zealand and Chile. ...
VTT printed a morphine test on paper
2015-04-13
VTT is the first in the world to have developed a drug test printed on paper. VTT used antibodies - produced by methods of molecular biology - as morphine sensing molecules when creating this printing technology-based morphine test. Using printing technology to manufacture rapid tests enables high production volumes and low production costs.
A paper-based test enables a rapid analysis of whether a compound - in this case, morphine - is present in a given sample. Possible future applications of the developed test include drug testing at workplaces and in connection with ...
Penn Medicine pain management study reveals patient confusion about opioid addiction
2015-04-13
PHILADELPHIA - Emergency department patients have misperceptions about opioid dependence and want more information about their pain management options, according to a new study from researchers at the Perelman School of Medicine at the University of Pennsylvania. The study, published online in the Annals of Emergency Medicine, found that patients seen in the emergency department for acute pain expressed a desire for better communication from physicians about their pain management options, along with discussion of the risks of opioid dependence.
The study used semi-structured ...
Neurophotonics celebrates advances, pioneering research in voltage-sensitive dye imaging
2015-04-13
BELLINGHAM, Washington, USA - The latest issue of the journal Neurophotonics features a tribute to the brilliance and originality of Lawrence (Larry) Cohen as well as reports on the latest advances in voltage-sensitive dyes and multiple-site optical recording methods enabled by the work of Cohen and his team. Their research has paved the way for advances in functional imaging of the electrical activity of live tissue in real time, say journal editors.
Neurophotonics is published by SPIE, the international society for optics and photonics. All articles in the journal are ...