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47 articles from PhysOrg

Signs of Asian giant hornet nest found in Washington state

Agricultural officials in Washington state said Friday they are trying to find and destroy a nest of Asian giant hornets believed to be near a small town amid concerns the hornets could kill honey bees crucial for pollinating raspberry and blueberry crops.

New nanotechology design provides hope for personalized vaccination for treating cancer

One of the key challenges in developing effective, targeted cancer treatments is the heterogeneity of the cancer cells themselves. This variation makes it difficult for the immune system to recognize, respond to and actively fight against tumors. Now, however, new advances in nanotechnology are making it possible to deliver targeted, personalized "vaccines" to treat cancer.

A social-belonging intervention improves STEM outcomes for ESL students

A study conducted at 19 universities by IU researchers and their colleagues in the U.S. and Canada, found that a brief social belonging exercise, administered online before students arrive on campus, boosts the performance and persistence of students in STEM disciplines—science, technology, engineering and math—who speak English as a second language.

A better understanding of how cirrus clouds form

New research provides insights into how cirrus clouds form, with implications for agriculture, urban development and climate-change predictions. The study shows that trees and plants play an important role that affects precipitation and global climate change.

The role of solid state chemistry in the development of metal-ion batteries

Professors from the Skoltech Center for Energy Science and Technology (CEST), Lomonosov Moscow State University and College de France shared their vision on the importance of solid state chemistry in advancements currently awaited from contemporary and prospective metal-ion batteries. The opinion was contributed as an invited review to Nature Communications.

Astronomers reveal first direct image of Beta Pictoris c using new astronomy instrument

The vast majority of planets near foreign stars are discovered by astronomers with the help of sophisticated methods. The exoplanet does not appear in the image, but reveals itself indirectly in the spectrum. A team of scientists from the Max Planck Institutes for Astronomy and Extraterrestrial Physics has now succeeded in obtaining the first direct confirmation of a previously discovered...

Damage uncovered on Antarctic glaciers reveals worrying signs for sea level rise

A new study into the structural damage of two major Antarctic glaciers reveals that ice shelf weakening has rapidly evolved in recent years. Multi-satellite imagery identified damage areas, sparking concerns that structural weakening could lead to major ice shelf collapse in the decades to come. This collapse, in turn, reduces the glaciers' ability to hold back major sections of the entire West...

Evolution on the smallest of scales smooths out the patchwork patterns of where plants and animals live

The Douglas fir is a tall iconic pine tree in Western North America forming a forest that winds unbroken from the Western spine of British Columbia all the way to the Mexican cordillera. The environmental conditions of Canada and Mexico are obviously very different, but even on much smaller scales—say, the top of a mountain compared with a valley below it—the rainfall, temperature, soil...

Research shows cell perturbation system could have medical applications

Cell lines injected with free nucleic acid are widely used for drug discovery and disease modeling. To avoid genetically mixed cell populations, investigators use dilution techniques to select single cells that will then generate identical lines. However, the route of limiting dilutions is tedious and time consuming.

Solving global challenges using insect research

IRD researchers and their partners have published a special issue in the Current Opinion in Insect Science journal. Using an interdisciplinary approach and based on examples from international research, they explain how insects can contribute to achieving the Sustainable Development Goals (SDG) identified by the United Nations for 2030.

NASA finds heavy rainfall ringing major Hurricane Maria's eye

Imagine being able to look down at a storm from orbit in space, and provide data that lets scientists calculate the rate in which rain is falling throughout it. That is what a NASA satellite rainfall product does as it incorporates data from satellites and observations. NASA found very heavy rainfall ringing around the compact eye of Major Hurricane Marie.

Rising waters threaten Great Lakes communities

Along a shoreline that stretches farther than the combined length of the Atlantic and Pacific coasts, waters driven by climate change have risen as much as 6 feet in less than a decade, washing away houses, destroying roads and threatening critical infrastructure such as water treatment plants in towns large and small.

A factor limiting recovery from bleaching in corals

Increases in seawater temperature can cause coral bleaching through the loss of symbiotic algae. Corals can recover from bleaching by recruiting algae into host cells from the residual symbiont population or from the external environment. However, the high coral mortality that often follows mass-bleaching events suggests that recovery is limited in the wild.

Study sets limits on the flux of heavy compact objects using data from the Pi of the Sky project

Strangelets, and specifically nuclearites, their heavy species, are very dense, compact and potentially fast objects made of large and roughly equal numbers of up, down and strange quarks, which may inhabit the universe. Their existence was first hypothesized by Edward Witten back in 1984. These objects have never been detected before and have so far attracted less attention than meteors, perhaps...

Monitoring trucks and trade from space

Earlier this year, ESA launched a contest asking the general public to submit ideas on how Earth observation data can help mitigate the effects of the COVID-19 pandemic. Today, one of the two winning ideas is being officially released to the public via the "Rapid Action on COVID-19 with Earth Observation" dashboard—a joint initiative from ESA and the European Commission. This...

Crickets were the first to chirp 300 million years ago

An international team, led by Dr. Sabrina Simon (Wageningen University & Research) and Dr. Hojun Song (Texas A&M), succeeded in tracing the evolution of acoustic communication in the insect family of crickets and grasshoppers (Orthoptera). The results show that crickets were the first species to communicate, approximately 300 million years ago. The results are also significant because it was the...

Searching for the chemistry of life

In the search for the chemical origins of life, researchers have found a possible alternative path for the emergence of the characteristic DNA pattern: According to the experiments, the characteristic DNA base pairs can form by dry heating, without water or other solvents. The team led by Ivan Halasz from the Rudjer Boskovic Institute and Ernest Mestrovic from the pharmaceutical company Xellia...

Cheating birds mimic host nestlings to deceive foster parents

The common cuckoo is known for its deceitful nesting behavior—by laying eggs in the nests of other bird species, it fools host parents into rearing cuckoo chicks alongside their own. While common cuckoos mimic their host's eggs, new research has revealed that a group of parasitic finch species in Africa have evolved to mimic their host's chicks—and with astonishing accuracy. The study is...

Logistics logic to reducing hotel food waste

Food waste is a growing problem for humanity. Vast tonnages of fresh food is lost because it never reaches consumers for myriad reasons, and similarly, food that reaches individual consumers and food outlets is often not eaten before it perishes and must be disposed of.