Tech
People who work in jobs that require less physical activity - typically office and desk-based jobs - are at a lower risk of subsequent poor cognition than those whose work is more physically active, suggests new research from the University of Cambridge.
Lack of physical activity and exercise are known risk factors for major health conditions, including cognitive impairments such as memory and concentration problems. However, evidence as to whether physical activity actually protects against cognitive decline has often been mixed and inconclusive.
With high-resolution microscopy, it is theoretically possible to image cell structures with a resolution of a few nanometres. However, this has not yet been possible in practice.
The reason for this is that antibodies carrying a fluorescent dye are usually used to label cell structures. Therefore, the dye is not located directly at the target structure, but about 17.5 nanometres away from it. Partly because of this distance error, the theoretically achievable resolution could not be achieved so far.
Publication in Nature Communications
In physics, they are currently the subject of intensive research; in electronics, they could enable completely new functions. So-called topological materials are characterised by special electronic properties, which are also very robust against external perturbations. This material group also includes tungsten ditelluride. In this material, such a topologically protected state can be "broken up" using special laser pulses within a few trillionths of a second ("picoseconds") and thus change its properties.
Researchers at the Center for Cognition and Sociality, within the Institute for Basic Science (IBS), Gwangju Institute of Science and Technology (GIST), and Korea Institute of Science and Technology (KIST) have discovered a new mechanism to explain the effects of subcortical strokes and a new possible therapeutic approach.
The spectacular leaps of gazelles, group living in deer and monkeys, and fast flight in many insects are all linked by a common phenomenon?predation. In its various forms, predation has driven the evolution of a plethora of specialized structures (morphology) and behaviours among organisms. Insects, being especially vulnerable because of their small size, have evolved various strategies to avoid predators.
Solar cells based on perovskite compounds could soon make electricity generation from sunlight even more efficient and cheaper. The laboratory efficiency of these perovskite solar cells already exceeds that of the well-known silicon solar cells. An international team led by Stefan Weber from the Max Planck Institute for Polymer Research in Mainz has found microscopic structures in perovskite crystals that can guide the charge transport in the solar cell. Clever alignment of these electron highways could make perovskite solar cells even more powerful.
The molecular gas in galaxies is organised into a hierarchy of structures. The molecular material in giant molecular gas clouds travels along intricate networks of filamentary gas lanes towards the congested centres of gas and dust where it is compressed into stars and planets, much like the millions of people commuting to cities for work around the world.
Over the past few decades, medical technology seen various advances in terms of the scope and efficiency of implant devices. For example, developments in medical research have led to the emergence of electronic implants, such as pacemakers to regulate the heart rate and cerebral spinal shunts to control the flow of spinal fluid. Most of these medical devices, including the pacemaker, require a constant source of energy to operate. Naturally, this causes some limitations: batteries, which provide an energy source for the implants, have a finite lifespan.
When NASA-NOAA's Suomi NPP satellite passed over the western North Atlantic Ocean on July 6, it provided forecasters with a visible image of Edouard after it transitioned into a post-tropical cyclone.
The National Hurricane Center (NHC) defines a post-tropical cyclone as a former tropical cyclone. This generic term describes a cyclone that no longer possesses sufficient tropical characteristics to be considered a tropical cyclone. Post-tropical cyclones can continue carrying heavy rains and high winds. Two classes of post-tropical cyclones include extratropical and remnant lows.
Study: Troubling connection between workplace pregnancy discrimination and health of mothers, babies
WACO, Texas (July 7, 2020) - Perceived pregnancy discrimination indirectly relates to increased levels of postpartum depressive symptoms for mothers and lower birth weights, lower gestational ages and increased numbers of doctor visits for babies, according to a management study led by Baylor University.
The study - "Examining the Effects of Perceived Pregnancy Discrimination on Mother and Baby Health" - is published in the Journal of Applied Psychology.
A low-pressure area strengthened quickly and became Tropical Storm Cristina in the Eastern Pacific Ocean and infrared imagery from NASA revealed the powerful thunderstorms fueling that intensification.
Cristina developed by 5 p.m. EDT on Monday, July 6, according to the National Hurricane Center in Miami, Fla. Six hours later it strengthened into a tropical storm and was renamed Cristina.
DALLAS and ARLINGTON Va., July 7, 2020 -- Seven in 10 U.S. adults worry poor health will prevent them from doing all the things they'd like to do in life, according to a new survey[1] from the American Heart Association and American Diabetes Association.
The research was conducted by OnePoll for Know Diabetes by Heart™, a joint initiative of the American Heart Association and the American Diabetes Association which combats two of the most persistent U.S. health threats - type 2 diabetes and cardiovascular disease - and the devastating link between them.
Binoculars in hand, birders around the world contribute every day to a massive database of bird sightings worldwide. But while community science observations of birds can be useful data, it may not be enough to fill the data gaps in developing countries where professional bird surveys are insufficient or absent.
An increase in carbon dioxide emissions equivalent to 5 million cars a year has been caused by the loss of seagrass meadows around the Australian coastline since the 1950s.
The stark finding was made possible by new modelling done by marine scientists at the Centre for Marine Ecosystems Research at Edith Cowan University (ECU) in Western Australia.
Existing public health monitoring systems in the UK, could improve understanding of the risk factors associated with severe COVID-19.
Research published in the journal Microbial Genomics describes how national surveillance systems can be linked with the UK Biobank. This pooled data could then be used to understand how genetics and other epidemiological factors impact risk of developing severe infection.