Culture
Scientists have revealed close-up details of a vital molecule involved in the mix and match of genetic information within cells - opening up the potential to target proteins of this family to combat cancer's diversity and evolution.
A team at The Institute of Cancer Research, London, has discovered the three-dimensional structure and function of this 'mix n match' protein, which helps control a process linked to cancer's progression and drug resistance.
PITTSBURGH, Sept. 13, 2019 - Among teen boys in urban neighborhoods with low resources, the presence of adult social support is linked to significantly fewer occurrences of sexual violence, youth violence and bullying, and to more positive behaviors, including school engagement and future aspirations, according to a new study from researchers at UPMC Children's Hospital of Pittsburgh and the University of Pittsburgh School of Medicine.
Bottom Line: This observational study of adolescent men in urban neighborhoods examined associations between social support, patterns of violence, and violence-related risk behaviors or protective factors that might mitigate them. The analysis included data from a recently completed randomized clinical trial that included 866 male adolescents from lower-resource neighborhoods in Pittsburgh who were enrolled at community agencies. Participants were surveyed on issues including violence, bullying, sexual and dating violence, substance use and involvement in school.
An international team of researchers has observed that local thermal perturbations of spins in a solid can convert heat to energy even in a paramagnetic material - where spins weren't thought to correlate long enough to do so. This effect, which the researchers call "paramagnon drag thermopower," converts a temperature difference into an electrical voltage. This discovery could lead to more efficient thermal energy harvesting - for example, converting car exhaust heat into electric power to enhance fuel-efficiency, or powering smart clothing by body heat.
Research into why adolescent drivers are involved in motor vehicle crashes, the leading cause of injury and death among 16- to 19-year-olds in the United States, has often focused on driving experience and skills. But a new study suggests that development of the adolescent brain may play a critical role in whether a teenager is more likely to crash.
Domestic cats, like many other mammals, use smelly secretions from anal sacs to mark territory and communicate with other animals. A new study from the Genome Center at the University of California, Davis shows that many odiferous compounds from a male cat are actually made not by the cat, but by a community of bacteria living in the anal sacs. The work is published Sept. 13 in PLOS ONE.
"Cats use a lot of volatile chemicals for signaling, and they probably don't make them all," said David Coil, project scientist at the Genome Center and an author on the paper.
Toxoplasma gondii, the unicellular causative agent of toxoplasmosis, reproduces itself in an unusual fashion by means of an internal budding process. This entails the development of two daughter cells within the cytoplasm of the mother cell. On completion of this process, the mother cell undergoes lysis, and the daughter cells are released into the infected host cell. The daughter cells continue to proliferate until the host-cell itself finally bursts. T. gondii is a globally distributed infectious agent. As a rule, the infection is innocuous.
A new study on menopausal women shows that leisure-time physical activity is associated with a healthier blood lipid profile. However, results suggest that leisure-time physical activity does not seem to entirely offset the unfavorable lipid profile changes associated with the menopausal transition.
Women experience a rapid increase in cardiovascular disease (CVD) risk after the onset of menopause. This observation suggests the presence of factors in middle-aged women that accelerate the progression of CVD independent of chronological aging.
For decades pollution in China has paralleled economic growth. But this connection has been weakened in recent years, according to a new international research study published in the Science Advances journal.
The study was conducted by an international team of researchers from five countries, including Deliang Chen, a professor of physical meteorology at the University of Gothenburg and a Coordinating Lead Author of the UN Intergovernmental Panel on Climate Change (IPCC).
60% of respondents reported difficulty affording treatment -
Nearly half of respondents reported undergoing step therapy -
Two-thirds of respondents reported activity and lifestyle limitations due to their disease
ATLANTA - Americans living with rheumatic disease face significant healthcare challenges, according to a national patient survey released this week by the American College of Rheumatology and its Simple Tasks™ public awareness campaign.
A group of scientists from Skoltech, the Moscow Institute of Physics and Technology, and the State University of Aerospace Instrumentation in St. Petersburg has won the Best Paper Award at the prestigious fifth IEEE International Conference on Internet of People (IoP 2019) for research on artificial intelligence, which established a connection between an esports player's movements and skill level. The research findings show that machine learning methods can accurately predict a player's skill level in 77% of cases.
The origin of the tin used in the Bronze Age has long been one of the greatest enigmas in archaeological research. Now researchers from Heidelberg University and the Curt Engelhorn Centre for Archaeometry in Mannheim have solved part of the puzzle. Using methods of the natural sciences, they examined the tin from the second millennium BCE found at archaeological sites in Israel, Turkey, and Greece. They were able to proof that this tin in form of ingots does not come from Central Asia, as previously assumed, but from tin deposits in Europe.
Diversity is good, especially when it comes to antibodies. It's long been known that a gene assembly process called V(D)J recombination allows our immune system to mix and match bits of genetic code, generating new antibodies to conquer newly encountered threats. But how these gene segments come together to be spliced has been a mystery. A new study in Nature provides the answer.
A flexible schedule is one of the main advantages of freelance work. But don't rejoice in your freedom just yet: self-employment often disrupts the balance between life and work and takes up more time than traditional office work.
Wherever fires are burning around the world NASA-NOAA's Suomi NPP satellite's Ozone Mapping and Profiler Suite (OMPS) can track the smoke and aerosols. On Sept. 13, 2019, data from OMPS revealed aerosols and smoke from fires over both South America and North America.