Culture
Biological sex is typically understood in binary terms: male and female. However, there are many examples of animals that are able to modify sex-typical biological and behavioral features and even change sex. A new study, which appears in the journal Current Biology, identifies a genetic switch in brain cells that can toggle between sex-specific states when necessary, findings that question the idea of sex as a fixed property.
University of Toronto Engineering researchers have discovered a dose threshold that greatly increases the delivery of cancer-fighting drugs into a tumour.
Determining this threshold provides a potentially universal method for gauging nanoparticle dosage and could help advance a new generation of cancer therapy, imaging and diagnostics.
"It's a very simple solution, adjusting the dosage, but the results are very powerful," says MD/PhD candidate Ben Ouyang, who led the research under the supervision of Professor Warren Chan.
Injuries induce the initiation of inflammation to control the damage. However, the resolution of the injury-induced inflammation leading to healing is not well characterized. This new article by researchers at the Inflammation Research Foundation suggests that the resolution process is under significant dietary control and thus can be optimized by using a highly defined systems-based nutritional approach.
A group of scientists from Skoltech and the Institute for Information Transmission Problems of RAS (IITP RAS) showed, using Lake Baikal amphipods as an example, that parallel evolution driven by adaptations can be detected at the whole-genome level. The research was published in the Genome Biology and Evolution journal.
Coronaviruses were detected in a high proportion of bats and rodents in Viet Nam from 2013 to 2014, with an increasing proportion of positive samples found along the wildlife supply chain from traders to large markets to restaurants, according to a study published August 10 in the open-access journal PLOS ONE by Amanda Fine of the Wildlife Conservation Society and colleagues. As noted by the authors, the amplification of coronaviruses along the wildlife supply chain suggests maximal risk for end consumers and likely explains the coronavirus spillover to people.
As the world continues to closely monitor the newest coronavirus outbreak, the government of South Korea has been able to keep the disease under control without paralyzing the national health and economic systems. In a new research article published in The American Review of Public Administration, University of Colorado Denver researcher Jongeun You reviewed South Korea's public health policy to learn how the country managed coronavirus from January through April 2020.
Testing Timeline
Reducing the amount of protein in the urine of patients with focal segmental glomerulosclerosis (FSGS), a rare disease in which scar tissue forms on the parts of the kidneys that filter waste from the blood, can significantly slow declines in kidney function and extend time before patients' kidneys fail, a new analysis by a Children's National Hospital researcher and her colleagues shows. These findings, published online Aug.
Investing time in education in childhood and early adulthood expands career opportunities and provides progressively higher salaries. It also conveys certain benefits to health and longevity.
Oxytocin, produced by the hypothalamus and sometimes known as the "love hormone" for its involvement in pair bonding and orgasm, can be a strong ally in the control and prevention of osteoporosis, according to a study by scientists at São Paulo State University (UNESP) in Brazil.
The study showed that when administered to female rats at the end of their fertile period, the hormone reversed precursors of osteoporosis, such as reduced bone density, decreased bone strength and a lack of substances that promote bone formation.
CHICAGO (August 10, 2020): The rise in firearm violence has coincided with an increase in the severity of injuries firearms inflict as well as the cost of operations to treat those injuries; policy makers must be more aggressive in addressing violence to curb these trends, researchers report in a large national study of gunshot wounds that appears as an "article in press" on the Journal of the American College of Surgeons website ahead of print.
It is conventional wisdom that Americans cherish democracy -- but a new study by Yale political scientists reports that only a small fraction of U.S. voters are willing to sacrifice their partisan and policy interests to defend democratic principles.
The study, published in the American Political Science Review, found that only 3.5% of U.S. voters would cast ballots against their preferred candidates as punishment for undemocratic behavior, such as supporting gerrymandering, disenfranchisement, or press restrictions.
Concern over the safety of students, teachers, and administrators in U.S. schools continues to grow, in part as a result of school shootings. In response, partnerships between schools and law enforcement agencies have increasingly placed school resource officers (SROs) in schools to boost security. Amid controversy over this practice, a new longitudinal study sought to learn more about the impact of SROs.
In the USA, where the curve of infections has not yet flattened since the beginning of the pandemic, 158,000 people have died from Covid-19 already. And despite the choice by all US states to gradually ease lockdown from late May onwards to save the economy, 14 million Americans have lost their job, while the economic output in the second quarter of 2020 dropped by 9.5%. To help entrepreneurs decide on how they can safely reopen their business, mathematicians and statisticians here develop a model for the spread of infections within companies and the economic payoff of safety measures.
UBC researchers are raising the alarm about the increase of vaping among teenagers and how e-cigarette marketing strategies target youth.
Assistant Professor Laura Struik, who teaches in UBC Okanagan's School of Nursing, recently published a paper examining why teens take up vaping and whether advertising capitalizes on those reasons.
BINGHAMTON, NY -- With schools around the world looking into various cost-cutting measures in the midst of the COVID-10 pandemic, new research from Binghamton University, State University of New York reveals that citizens prefer teachers and administrative staff to be at the frontline of school spending cuts during times of economic crisis.