Culture
Legalizing medical marijuana has not increased recreational use of the substance among U.S. adolescents, according to a new study conducted at Columbia University's Mailman School of Public Health. The findings are published online in the journal Addiction.
A study of the unusual digestive system of an ancient group of insects has provided new insights into future biofuel production.
Published in Nature Communications, the research reveals that the ability of some insects to efficiently digest cellulose could be exploited for industrial processes, such as the production of sustainable low carbon fuels to cut greenhouse gas emissions associated with fossil fuel use.
ROCHESTER, Minn. - Patients who suffer from a type of heart attack that affects mainly younger women, called spontaneous coronary artery dissection or SCAD, may benefit most from conservative treatment, letting the body heal on its own. This is according to a new scientific statement by a Mayo Clinic led team, published by the American Heart Association in its journal, Circulation.
MULTIMEDIA ALERT: Video and audio are available for download on the Mayo Clinic News Network.
Researchers who analyzed gene expression in synovial tissue samples from rheumatoid arthritis patients' joints identified different patterns that may be clinically meaningful. The findings, which are published in Arthritis & Rheumatology, indicate that the mechanisms of pain differ in patients with different synovial subtypes of rheumatoid arthritis, and they may help guide clinicians as they develop optimal treatment strategies for patients.
It is difficult to distinguish males from females among King Penguins, but a new Ibis study reveals that King Penguins can be sexed with an accuracy of 100% based on the sex-specific syllable pattern of their vocalisations. Using the beak length, King Penguin individuals can be sexed with an accuracy of 79%.
Prior studies have suggested that non-steroidal anti-inflammatory drugs (NSAIDs) may be linked with higher cardiovascular risks, but few have assessed potential different cardiovascular risk between NSAID classes or across individual NSAIDs.
AUGUSTA, Ga. (Feb. 22, 2018) - A portable ultrasound can help nephrologists better detect fluid in the lungs of patients with end-stage kidney disease, according to a study by physicians at the Medical College of Georgia at Augusta University.
Patients with the disease, characterized by the kidneys' inability to work well enough to meet your body's basic needs, can accumulate fluid all over their bodies, and commonly in the lungs says second-year nephrology fellow Dr. Omar Saleem.
DURHAM, N.C. -- Researchers at Duke University have created a framework for helping bioengineers determine when to use multiple lines of cells to manufacture a product. The work could help a variety of industries that use bacteria to produce chemicals ranging from pharmaceuticals to fragrances.
The research was published online the week of February 19, 2018 in the Proceedings of the National Academy of Sciences.
Researchers have long wondered how glial cells, which help provide nutrition and maintain the immediate environment around nerve cells, modulate the activity of nerve cells.
Researchers led by Robert Paul Malchow, associate professor of biological sciences at the University of Illinois at Chicago, have discovered that glial cells may modulate the release of neurotransmitters -- chemicals that relay signals between nerve cells -- by increasing the acidity of the extracellular environment. Their findings are reported in the online journal PLOS ONE.
A basic building block of modern technology, inductors are everywhere: cellphones, laptops, radios, televisions, cars. And surprisingly, they are essentially the same today as in 1831, when they were first created by English scientist Michael Faraday.
ATLANTA--Carbon monoxide can improve the effectiveness of antibiotics, making bacteria more sensitive to antibiotic medication, according to a study led by Georgia State University.
Researchers paired carbon monoxide with the antibiotic metronidazole and found carbon monoxide enhanced the efficacy of the antibiotic against H. pylori, a type of bacteria that infects the stomach and causes peptic ulcers. The findings are published in the journal Organic Letters.
The enzyme that produces DNA building blocks plays an important role when cells divide. In a new study, researchers have discovered for the first time that the so-called master switch of the enzyme can change locations - while still performing the same task.
Regardless of whether you are human, a worm or a bacterium, all beings need to create new cells in order to grow or to replace old cells. But before a cell can divide, it must copy its entire genome, that is, its DNA. This is where the enzyme in question comes into play.
Scientists at Tokyo Institute of Technology (Tokyo Tech) developed a motility-reactivation method to help determine how light-responsive changes in flagellar waveform in Volvox rousseletii, a multicellular spheroidal alga, are regulated. These results advance current understanding of how flagellar motility increased in complexity as single-celled organisms evolved into multicellular forms.
Key repeating moments in the film give viewers the information they need to understand the storyline. The scenes cause identical reactions in the viewer's brain. The results deepen our understanding of how the brain functions, how narratives work in film, and memory mechanisms impaired by conditions such as Alzheimer's disease.
Prophylactic use of the drug haloperidol does not help to prevent delirium in intensive care patients or improve their chances of survival. Therefore, there is no reason anymore to administer the drug as a preventive measure to reduce the burden of delirium. This was revealed following a three-year, large-scale study among 1,800 patients in 20 Dutch ICUs, headed by Radboud university medical center.