Earth
Findings from the 2019 Monitoring the Future (MTF) survey demonstrate the appeal of vaping to teens, as seen in the increased prevalence of marijuana use as well as nicotine vaping. Results from the 45th annual MTF survey, a nationally representative sample of eighth, 10th and 12th graders in hundreds of U.S. schools, were announced today by the director of the National Institute on Drug Abuse (NIDA), part of the National Institutes of Health, along with the University of Michigan scientist who leads the research team.
Teenage girls who experience clinical levels of anxiety could be at greater risk of eating disorders, according to associations identified in a study completed by researchers at the University of Bristol with UCL.
Published today [18 December] in European Eating Disorders Review, the new research looked at anxiety disorder pathology and engagement with severe levels of fasting (not eating for an entire day) in 2,406 teenage girls of Bristol's Children of the 90s study.
With countries such as Iceland, Costa Rica, New Zealand, and Norway adopting green energy practices, renewable energy now accounts for a third of the world's power. As this trend continues, more and more countries are looking to offshore energy sources to produce this renewable energy. In an Opinion publishing December 17 in the journal Trends in Ecology and Evolution, researchers identify situations where green technology such as wind turbines, wave energy converters, and other marine renewable energy devices (MREDs) have had negative consequences on marine life.
Bottom Line: Researchers analyzed changes in the proportion of drug overdose deaths involving opioids that were certified as suicide, unintentional or of undetermined intent in this observational study. Using 2000-2017 mortality data, researchers report 47,506 total opioid deaths (excluding homicides) in 2017: 90.6% were unintentional deaths, 4% were suicides and 5.4% were of undetermined intent.
Over the past 70 years since the foundation of the People's Republic of China, Chinese scientists have made great contributions to various fields in the research of atmospheric sciences, which attracted worldwide attention. In the field of climate and climate change, we have witnessed multiple remarkable achievements by Chinese scientists.
CSIRO research has found global warming will make it more difficult to predict multi-year global climate variations, a consequence of changes to long-term climate variability patterns in the Pacific Ocean.
The results, published today in Nature Climate Change, shed light on how the Pacific Decadal Oscillation (PDO) was responding to a changing climate, with implications for assessing multi-year risks to marine ecosystems, fisheries and agriculture.
Archaeologists with the University of Cincinnati have discovered two Bronze Age tombs containing a trove of engraved jewelry and artifacts that promise to unlock secrets about life in ancient Greece.
The UC archaeologists announced the discovery Tuesday in Greece.
Jack Davis and Sharon Stocker, archaeologists in UC's classics department, found the two beehive-shaped tombs in Pylos, Greece, last year while investigating the area around the grave of an individual they have called the "Griffin Warrior," a Greek man whose final resting place they discovered nearby in 2015.
Job enrichment may be an important tool for retaining seasonal frontline staff, according to a new University of Waterloo study.
Natural gas has become the largest fuel source for generating electricity in the United States, accounting for a third of production and consumption of energy. However, the environmental and socioeconomic impacts of natural gas have not been considered comprehensively. A new study estimated the cumulative effects of the shale gas boom in the Appalachian basin in the early 2000s on air quality, climate change, and employment. The study found that effects on air quality and employment followed the boom-and-bust cycle, but effects on climate change will likely persist for generations to come.
Researchers from the University of Copenhagen have discovered a surprising phenomenon in a process by which certain gas molecules produce harmful particles. The impact of this phenomenon is likely to increase in urban areas as pollution decreases. This knowledge can serve to help politicians adopt better measures to combat air pollution and contribute to improve climate models.
Washington, DC - December 17, 2019 - Weight gain and diet have long been known to shuffle the population of gut microbes. More recently, studies have also connected weight gain and diet to changes in the intestinal endocannabinoid system (eCB), a complex network of metabolites and receptors that help regulate appetite and metabolism, among other chores. A new study in mSystems, an open-access journal of the American Society for Microbiology, investigates the relationship between microbiota and the eCB system.
Glycine receptors are one of the most widely distributed inhibitory receptors in the central nervous system and have important roles in a variety of physiological processes. Researchers from Max Planck Florida Institute for Neuroscience (MPFI), University of Toyama, Yamagata University, Cairo University, RIKEN Center for Integrative Medical Sciences and Setsunan University joined forces to further study glycine receptors, particularly glycine receptor alpha-4 (Glra4), during development.
WASHINGTON--Scientists have captured the birth of a high-speed ice feature for the first time on top of a Russian glacier.
In a remote archipelago of the Russian Arctic, Vavilov Ice Cap had been moving at a glacial pace for decades. Then, in 2013, it suddenly started spewing ice into the sea, flowing in what scientists call a glacial surge. But a new study suggests this surge has now become something entirely different.
By combining RNA sequencing, bioinformatics and mathematical modeling, University of California San Diego School of Medicine and Moores Cancer Center researchers identified a sudden transcriptomic switch that turns healthy liver tissue cancerous. The finding was used to develop a quantitative analytical tool that assesses cancer risk in patients with chronic liver disease and to predict tumor stages and prognosis for patients with liver cancer.
HOUSTON -- (Dec. 16, 2019) -- In the first study of its kind, researchers have discovered that events from 20,000 years ago or more are still impacting the diversity and distribution of mammal species worldwide.