Culture
Imagine slow-motion fireworks that started exploding 170 years ago and are still continuing. This type of firework is not launched into Earth's atmosphere, but rather into space by a doomed super-massive star, called Eta Carinae, the largest member of a double-star system. A new view from NASA's Hubble Space Telescope, which includes ultraviolet light, shows the star's hot, expanding gases glowing in red, white and blue. Eta Carinae resides 7,500 light-years away.
A new study from the University of Göttingen and international partners has analysed the effects of Fairtrade certification on poor rural workers in Africa. The results show that Fairtrade improves the situation of employees in agricultural cooperatives, but not of workers in the smallholder farm sector, who are often particularly disadvantaged. The study was published in "Nature Sustainability".
CORVALLIS, Ore. - A collaboration led by scientists at Oregon State University, the University of Oxford in the United Kingdom and Erasmus University in The Netherlands has identified a new genetic mutation behind the premature fusing of the bony plates that make up the skull.
The findings are a key step toward preventing a serious cranial condition that affects roughly one child in 2,250, and also toward understanding how the protein the gene encodes works in the development and function of other organ systems such as skin, teeth and the immune system.
In biotech these days, CRISPR/Cas9 is a hot topic, because of its utility as a precise gene editing tool. Before humans repurposed it, CRISPR/Cas9 was a sort of internal immune system bacteria use to defend themselves against phages, or viruses that infect bacteria, by slicing up the phages' DNA.
Scientists at Emory University School of Medicine and the Max Planck Unit for the Science of Pathogens have found that the "scissors" component of CRISPR/Cas9 sometimes gets stuck.
Seeing a health professional for a full health screening - even when you feel healthy - from around age 40 enables people to make changes when problems first set in, experts say.
Flinders University research on a group of 561 seemingly healthy adults found that there was an average of five unidentified health problems per person, including undiagnosed blood pressure or early hearing loss.
The 21 health domains tested hearing, memory, lung function, foot sensation, balance, diet and physical activity.
Findings from a study of patients who received radioactive iodine (RAI) treatment for hyperthyroidism show an association between the dose of treatment and long-term risk of death from solid cancers, including breast cancer. The study, led by researchers at the National Cancer Institute (NCI), part of the National Institutes of Health, was published July 1, 2019 in JAMA Internal Medicine.
PHILADELPHIA - For years, researchers have been trying to target a gene called MYC that is known to drive tumor growth in multiple cancer types when it is mutated or over-expressed, but hitting that target successfully has proven difficult. Now researchers in the Perelman School of Medicine of the University of Pennsylvania have identified a new pathway that works as a partner to MYC and may be its Achilles' Heel. The pathway involves a protein called ATF4, and when it's blocked, it can cause cancer cells to produce too much protein and die.
A major 2009 revision to a federal nutrition program for low-income pregnant women and children improved recipients' health on several key measures, researchers at UC San Francisco have found.
PROVIDENCE, R.I. [Brown University] -- Most of the well-studied proteins in our bodies are like metal; some can change shape easily, like aluminum foil, and others are rigid, like steel beams, but they typically have a solid, well-defined structure. Many other essential proteins are more like water -- able to change phase from liquid to solid ice.
Bottom Line: Radioactive iodine has been used since the 1940s to treat hyperthyroidism, an overactive thyroid. This study is an extension of one that has followed patients in the United States and the United Kingdom treated for hyperthyroidism for nearly 70 years. Researchers sought to determine the association of doses of radioactive iodine absorbed by organs or tissue with overall and site-specific cancer death. This analysis included 18,805 patients treated with radioactive iodine and with no history of cancer at the time of treatment.
Amyotrophic lateral sclerosis (ALS) is a neurological condition that affects motor neurons -- the nerve cells that control breathing and muscles. Under a microscope, researchers have noticed that the motor neurons of patients with ALS contain excessive aggregation of a protein called TDP-43. Since TDP-43 proteins stuck in these aggregates can't perform their normal function, the scientists believe this build-up contributes to motor neuron degeneration, the hallmark of ALS.
Galaxies grow by accumulating gas from their surroundings and converting it to stars, but the details of this process have remained murky. New observations, made using the Keck Cosmic Web Imager (KCWI) at the W. M. Keck Observatory in Hawaii, now provide the clearest, most direct evidence yet that filaments of cool gas spiral into young galaxies, supplying the fuel for stars.
Even if we study them at school, oxidation numbers have so far eluded any rigorous quantum mechanical definition. A new SISSA study, published in Nature Physics, reverses this state of affairs by providing such a definition, based on the theory of topological quantum numbers, which was honoured with the 2016 Nobel prize in Physics awarded to Thouless, Haldane and Kosterlitz.
The best way to protect corals threatened by climate change is to conserve a wide range of their habitats, according to a study in Nature Climate Change. The finding likely applies to conservation efforts for many other species in the ocean and on land, including trees and birds.
In the U.S. state policies pertaining to alcohol use during pregnancy have been in effect for more than 40 years.
These policies include:
Mandatory warning signs
Priority access to substance abuse treatment for pregnant women
Requirements to report evidence of alcohol use during pregnancy to law enforcement or child welfare agencies-- or to a health authority for the purposes of data gathering and treatment
Laws that define alcohol use during pregnancy as child abuse/child neglect