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191,281 articles from EurekAlert

65+ and lonely? Don't talk to your doctor about another prescription

Lonely, older adults are nearly twice as likely to use opioids to ease pain and two-and-a-half times more likely to use sedatives and anti-anxiety medications, putting themselves at risk for drug dependency, impaired attention, falls and other accidents, and further cognitive impairment, according to a study by researchers at UC San Francisco.

Anxiety, depression, burnout rising as college students prepare to return to campus

A new survey led by The Ohio State University's Office of the Chief Wellness Officer finds students are excited to get back to campus after a long and difficult year. But the trauma of the pandemic is still affecting their mental health. The survey found anxiety, depression and burnout are all on the rise among students, even as they find normalcy again. Those issues have also led to increases in...

Development of a novel technology to check body temperature with smartphone camera

A research team in the Korea Institute of Science and Technology(KIST) has announced the development of a thermal-imaging sensor that overcomes the existing problems of price and operating-temperature limitations. The sensor developed in this work can operate at temperatures upto 100 °C without a cooling device and is expected to be more affordable than standard sensors on the market, which...

International collaboration of scientists rewrite the rulebook of flowering plant genetics

Scientists around the world are collaborating on a project that is changing the way they trace the evolutionary history of flowering plants. By using new technology allowing them to rapidly retrieve and compare DNA sequences from among any of the 300,000 species of flowering plants, scientists are unraveling the 140-million-year history of the largest group of land plants on Earth and providing a...

Juicy past of favorite Okinawan fruit revealed

A genetic analysis of fruit in the mandarin family has unraveled a complex journey from the mountainous region of southern China to the markets of Okinawa, says researchers from the Okinawa Institute of Science and Technology Graduate University.

Misplaced trust: When trust in science fosters pseudoscience

People who trust science are more likely to believe and disseminate false claims containing scientific references than people who do not trust science, a study finds. Reminding people of the value of critical evaluation reduces belief in false claims, but reminding them of the value of trusting science does not.

New breakthrough to help immune systems in the fight against cancer

New research has identified potential treatment that could improve the human immune system's ability to search out and destroy cancer cells within the body. Scientists have identified a way to restrict the activity of a group of cells which regulate the immune system, which in turn can unleash other immune cells to attack tumours in cancer patients.

New research identifies cancer types with little survival improvements in adolescents and young adul

Survival rates for adolescents and young adults diagnosed with cancer have varied considerably depending on cancer type. A new study indicates that survival for multiple cancer types in such patients has improved in recent years, but some patients diagnosed with common cancer types still show limited survival improvements. The results are published by Wiley early online in CANCER, a peer-reviewed...

New statement provides path to include ethnicity, ancestry, race in genomic research

Historically marginalized racial and ethnic groups and Indigenous peoples have significant cardiovascular health inequities, and these groups are underrepresented in genetic and genomic research.Almost 80% of participants in genomic research are of European ancestry, yet this group makes up just 16% of the global population.Heart-disease risk calculations and information about how different...

Plant root-associated bacteria preferentially colonize their native host-plant roots

An international team of researchers from the Max Planck Institute for Plant Breeding Research and the University of Åarhus in Denmark have discovered that bacteria from the plant microbiota are adapted to their host species. In a newly published study, they show how root-associated bacteria have a competitive advantage when colonizing their native host, which allows them to invade an already...

Rare inherited variants in previously unsuspected genes may confer significant risk for autism

Researchers have identified a rare class of genetic differences transmitted from parents without autism to their affected children with autism and determined that they are most prominent in "multiplex" families with more than one family member on the spectrum. These findings are reported in Recent ultra-rare inherited variants implicate new autism candidate risk genes, a new study published in...

Scientists model 'true prevalence' of COVID-19 throughout pandemic

University of Washington scientists have developed a statistical framework that incorporates key COVID-19 data -- such as case counts and deaths due to COVID-19 -- to model the true prevalence of this disease in the United States and individual states. Their approach projects that in the U.S. as many as 60% of COVID-19 cases went undetected as of March 7, 2021, the last date for which the dataset...

The mechanics of puncture finally explained

Soft materials, like skin, behave differently than hard materials when punctured. They provide an unstable resistance that is more difficult to describe and hence predict. Researchers at the University of British Columbia have answered the previously unsolved question of how the mechanics of piercing works on soft materials by studying solutions from the natural world, and have created a...

Through the thin-film glass, researchers spot a new liquid phase

A new study describes a new liquid phase in thin films of a glass-forming molecules. These results demonstrate how these glasses and other similar materials can be fabricated to be denser and more stable, providing a framework for developing new applications and devices through better design.

Two types of blood pressure meds prevent heart events equally, but side effects differ

In an analysis of almost 3 million patients taking a single high blood pressure medication for the first time, angiotensin receptor blockers (ARBs) were as good as angiotensin-converting enzyme (ACE) inhibitors at preventing cardiovascular events linked to hypertension, including heart attack, stroke and heart failure.51 possible side effects and safety concerns were examined: The patients taking...

SUNDAY 25. JULY 2021

New study sheds light on function of sex chromosomes in turtles

A new study led by an Iowa State University scientist sheds light on how organisms have evolved to address imbalances in sex chromosomes. The study looks at a species of softshell turtle, but the results could help to illuminate an important evolutionary process in many species. The research centers on a process known as sex chromosome dosage compensation.


Tweezers of sound can pick objects up without physical contact

Tokyo, Japan - Researchers from Tokyo Metropolitan University have developed a new technology which allows non-contact manipulation of small objects using sound waves. They used a hemispherical array of ultrasound transducers to generate a 3D acoustic fields which stably trapped and lifted a small polystyrene ball from a reflective surface. Although their technique employs a method similar to...

FRIDAY 23. JULY 2021

'Feel good' brain messenger can be willfully controlled, new study reveals

UC San Diego researchers and their colleagues at the Icahn School of Medicine at Mount Sinai in New York have discovered that spontaneous impulses of dopamine, the neurological messenger known as the brain's "feel good" chemical, occur in the brain of mice. The study found that mice can willfully manipulate these random dopamine pulses for reward.

A new mathematical model assesses ICU patients' mortality risk

Researchers from the Universitat Autònoma de Barcelona (UAB) Department of Mathematics worked in collaboration with the Hospital de Mataró in developing an artificial intelligence-based model for predicting the risk of death of intensive care unit patients according to their characteristics. The model will improve the quality of care in these types of units.

Advantages of intranasal vaccination against SARS-CoV-2

There are many reasons that an intranasal vaccine against the SARS-CoV-2 virus would be helpful in the fight against COVID-19 infections, University of Alabama at Birmingham immunologists Fran Lund, Ph.D., and Troy Randall, Ph.D., write in a viewpoint article in the journal Science.

American Society for Colposcopy and Cervical Pathology discusses updated American Cancer Society guidelines on cervical cancer screening

Last year, the American Cancer Society (ACS) issued an updated set of guidelines for cervical cancer screening - emphasizing the shift toward screening with primary human papillomavirus (HPV) testing. While the ACS recommendation accounts for a transition period to implement primary HPV screening, additional factors should be considered to operationalize these guidelines, according to a special...

Americans with higher net worth at midlife tend to live longer

In the first wealth and longevity study to incorporate siblings and twin pair data, researchers from Northwestern University analyzed the midlife net worth of adults (mean age 46.7 years) and their mortality rates 24 years later. They discovered those with greater wealth at midlife tended to live longer.

Bio-based coating for wood outperforms traditional synthetic options

Researchers at Aalto University have used lignin, a natural polymer abundant in wood and other plant sources, to create a safe, low-cost and high-performing coating for use in construction. As there is a global urge to meet the rising sustainability standards, this new coating has great potential to protect wood, whose use in construction is continually increasing. The new coating is non-toxic,...

Blushing plants reveal when fungi are growing in their roots

Scientists have created plants whose cells and tissues 'blush' with beetroot pigments when they are colonised by fungi that help them take up nutrients from the soil. This is the first time this vital, 400 million year old process has been visualised in real time in full root systems of living plants. Understanding the dynamics of plant colonisation by fungi could help to make food production...

Cascaded metasurfaces for dynamic control of THz wavefronts

As reported in Advanced Photonics, researchers from Shanghai University and Fudan University developed a general framework and metadevices for achieving dynamic control of THz wavefronts. Instead of locally controlling the individual meta-atoms in a THz metasurface (e.g., via PIN diode, varactor, etc.), they vary the polarization of a light beam with rotating multilayer cascaded metasurfaces.