Brain
As the world prepares to commemorate International Holocaust Remembrance Day on January 27th, communities and memorials around the world are addressing how to meaningfully commemorate the day while protecting public health and safety. The day marking the anniversary of the liberation of Auschwitz is ordinarily commemorated with hundreds of individual memorial events across the globe. This year, most of those events will be impossible for any sizable gathering of people due to COVID-19.
BROOKLYN, New York, Monday, January 26, 2021 - Atomically thin, 2D hexagonal boron nitride (h-BN) is a promising material whose protean ability to undergo phase transformations to strong, super lightweight, chemically stable, oxidation-resistant films makes them ideal for protective coatings, nanotechnology thermal applications, deep-UV light emitters, and much more.
Incidence rates of skin cancer (cutaneous malignant melanoma) have increased more than 550% in males and 250% in females since the early 1980s in England - according to a new study by Brighton and Sussex Medical School (BSMS).
Published in the new Lancet journal, The Lancet Regional Health - Europe, the study analysed data on more than 265,000 individuals diagnosed with skin cancer in England over the 38-year period, 1981-2018.
Skin cancer is the fifth most common cancer in the UK, with about 16,200 new cases each year.
Researchers from North Carolina State University have created a trifunctional contraceptive gel that contains spermicidal, anti-viral and libido-enhancing agents in one formulation. When tested in a rat model, the gel both enhanced male libido and prevented pregnancy in 100% of cases, as compared to an average 87% effective rate with a commercially available contraceptive gel.
Depression, especially in urban areas, is on the rise, now more than ever. Mental health outcomes are influenced by, among other things, the type of environment where one lives. Former studies show that urban greenspace has a positive benefit on people experiencing mental ill health, but most of these studies used self-reported measures, which makes it difficult to compare the results and generalise conclusions on the effects of urban greenspace on mental health.
Researchers perform experiments that can add or subtract a single quantum of sound--with surprising results when applied to noisy sound fields.
Quantum mechanics tells us that physical objects can have both wave and particle properties. For instance, a single particle--or quantum--of light is known as a photon, and, in a similar fashion, a single quantum of sound is known as a phonon, which can be thought of as the smallest unit of sound energy.
Cancer is the second leading cause of death in the world. The number of deaths and incidences is increasing each year. The metal-based anticancer drugs were used clinically worldwide, but suffer from poor selectivity, serious side effects and drug resistance. Tumor-targeting drug development is the basis for precise cancer treatment.
Solar-driven photoelectrochemical (PEC) water splitting is an attractive approach to convert solar energy into chemical energy. Among many photoelectrode materials, crystalline silicon (c-Si) has drawn considerable attention because of its earth abundance, narrow bandgap, and suitable band edge position for hydrogen evolution reaction (HER). However, c-Si suffers from low photovoltage generated from the solid-liquid junction.
DISCOVERY BRIEF:
The first new skull of a rare species of the dinosaur Parasaurolophus (recognized by the large hollow tube that grows on its head) discovered in 97 years.
Exquisite preservation of the new skull gives paleontologists their first opportunity to definitively identify how such a bizarre structure grew on this dinosaur.
For the first time, this study found characteristics to link tube-crested dinosaur species found in southern North America (New Mexico, Utah), distinct from the only northern species (Alberta).
Scientists have identified a key nutrient source used by algae living on melting ice surfaces linked to rising sea levels.
The Greenland ice sheet - the second largest ice body in the world after the Antarctic ice sheet - covers almost 80% of the surface of Greenland. Over the last 25 years, surface melting and water runoff from the ice sheet has increased by about 40%.
The international research team, led by the University of Leeds, analysed samples from the southwestern margin on Greenland's 1.7 million km² ice sheet over two years.
Becoming a parent often brings great joy, but not always. Parenthood also entails challenges, stress and, for some people, it can trigger depression. A new study from Lund University in Sweden shows that male postnatal depression is more common in men who are insecure in their relationship with their partner.
Metals such as gold or platinum are often used as catalysts. In the catalytic converters of vehicles, for example, platinum nanoparticles convert poisonous carbon monoxide into non-toxic CO2. Because platinum and other catalytically active metals are expensive and rare, the nanoparticles involved have been made smaller and smaller over time.
An adverse upbringing often impairs people's circumstances and health in their adult years, especially for couples who have both had similar experiences. This is shown by a new study, carried out by Uppsala University researchers, in which 818 mothers and their partners filled in a questionnaire one year after having a child together. The study is now published in the scientific journal PLOS ONE.
PHILADELPHIA -- (Jan. 21, 2021) -- Researchers at The Wistar Institute have discovered a new enzymatic function of the Epstein-Barr Virus (EBV) protein EBNA1, a critical factor in EBV's ability to transform human cells and cause cancer. Published in Cell, this study provides new indications for inhibiting EBNA1 function, opening up fresh avenues for development of therapies to treat EBV-associated cancers.
Suppose Smokey the Bear were to go on a tear and start setting forest fires instead of putting them out. That roughly describes the behavior of certain cells of our immune system that become increasingly irascible as we grow older. Instead of stamping out embers, they stoke the flames of chronic inflammation.