Tech
Insect pollination played an important role in the evolution of angiosperms. Little is known, however, about ancient pollination insects and their niche diversity during the pre-angiosperm period due to the rarity of fossil evidence of plant-pollinator interactions.
COLUMBUS, Ohio - Many women in doctoral degree programs in fields like engineering and physics are in a class of their own - and that's not a good thing.
A new study found that the fewer females who enter a doctoral program at the same time, the less likely any one of them will graduate within six years.
In the worst-case scenario - where there's just one woman in a new class - she is 12 percentage points less likely to graduate within six years than her male classmates, the study found.
Super Typhoon Mangkhut is a powerful tropical cyclone headed toward the northern Philippines. It is a Category 5 storm on the Saffir-Simpson hurricane wind scale. NASA-NOAA's Suomi NPP satellite provided a visible image as it passed over the Northwestern Pacific Ocean and stared the storm in its eye.
Scientists have developed a topological photonic chip to process quantum information, promising a more robust option for scalable quantum computers.
The research team, led by RMIT University's Dr Alberto Peruzzo, has for the first time demonstrated that quantum information can be encoded, processed and transferred at a distance with topological circuits on the chip. The research is published in Science Advances.
The breakthrough could lead to the development of new materials, new generation computers and deeper understandings of fundamental science.
COLLEGE PARK, Md. - Ever-expanding viewing options make it increasingly harder for a movie or television series to stand out in a saturated market. With trailers alone not drawing enough attention, marketers increasingly depend on shorter video snippets -- video clips -- to promote content across a variety of digital channels, including ones without sound.
Pollinating insects are endangered globally, with a particularly steep decline over the last 40 years. An extensive 3-year study from Lund University in Sweden has found that organic farming methods can contribute to halting the pollinator decline. This beneficial effect is due to both the absence of insecticides and a higher provision of flower resources.
There has been an increase in the use of medications to treat attention deficit hyperactivity disorder (ADHD) in both adults and children between 2001 and 2015, according to a major observational study involving over 154 million individuals from 14 countries in Europe, North America, Asia, and Australasia, published in The Lancet Psychiatry journal. The study provides the most comprehensive analysis yet of trends in ADHD medication use.
GALVESTON, Texas -Researchers from The University of Texas Medical Branch at Galveston found that testosterone replacement therapy may slow disease progression of chronic obstructive pulmonary disease. The paper is currently available in Chronic Respiratory Disease.
Scientists have succeeded in observing the first long-distance transfer of information in a magnetic group of materials known as antiferromagnets. These materials make it possible to achieve computing speeds much faster than existing devices. Conventional devices using current technologies have the unwelcome side effect of getting hot and being limited in speed. This is slowing down the progress of information technology.
The sky gets a new reference frame. On 30 August the International Astronomical Union adopted the International Celestial Reference Frame 3 (ICRF-3) during their general assembly in Vienna, Austria. As of 1 January 2019 this reference frame has global validity. It serves for example for the orientation of GPS systems as well as the navigation of space probes.
The timing of seizures may be linked to natural rhythms in around 80% of people with epilepsy, according to the largest study of individual patients' seizure cycles including more than 1,000 people, published in The Lancet Neurology journal.
Most people's seizures occurred in a circadian (ie, 24-hour) rhythm, but some people experienced weekly and 3-weekly cycles in their seizures, and some had a combination of daily, weekly or longer cycles associated with their seizures.
Figures published by The BMJ today show how crowdfunding for alternative therapies for patients with terminal cancer has soared in recent years. But there are fears that huge sums are being raised for treatments that are not backed by evidence and which, in some cases, may even do then harm.
As such, there are now calls for crowdfunding sites to vet cancer appeals to help ensure that patients and their donors are not being exploited, writes freelance journalist Melanie Newman.
In a proof of concept study, scientists at Johns Hopkins report they have successfully performed 3D personalized virtual simulations of the heart to accurately identify where cardiac specialists should electrically destroy cardiac tissue to stop potentially fatal irregular and rapid heartbeats in patients with scarring in the heart.
Two to three million years ago, the functional loss of a single gene triggered a series of significant changes in what would eventually become the modern human species, altering everything from fertility rates to increasing cancer risk from eating red meat.
New Rochelle, September 11, 2018-A novel high throughput screening (HTS) assay compatible with an ion channel biosensor component was used successfully to identify selective and active small molecule modulators of G protein-coupled receptor 119 (GPR119), a promising target for the treatment of type 2 diabetes and related metabolic disorders.