Tuesday, 18 May 2021

Dementia risk factors similar for men and women, but not high blood pressure

In a study of just over half a million people, George Institute researchers found that while the link between several mid-life cardiovascular risk factors and dementia was similar for both sexes, for blood pressure it was not.

Why bipolar patients don't take their meds

People with bipolar disorder may not take their medication because of side effects, fear of addiction and a preference for alternative treatment, according to research from Norfolk and Suffolk NHS Foundation Trust (NSFT) and the University of East Anglia (UEA).

Scientists debut most efficient 'optical rectennas,' devices that harvest power from heat

Scientists at the University of Colorado Boulder have tapped into a poltergeist-like property of electrons to design devices that can capture excess heat from their environment—and turn it into usable electricity.

Researchers announce new discovery to evaluate tuberculosis treatments

A new study published in Nature Communications provides an important new basis for comparing the effectiveness of different tuberculosis treatments.

Intensive agriculture could drive loss of bees and other tropical pollinators

Pollinators in the tropics are less likely to thrive in intensive croplands, finds a new study led by UCL researchers suggesting bees and butterflies are at risk of major losses.

Scientists link genetic makeup of bacteria in the human gut to several human diseases

We are truly never alone, not even within our own bodies. Human beings play host to trillions of bacteria, fungi, viruses, and other microorganisms that make up the human microbiome. In recent years, the mix of these resident bacteria, and the presence of specific bacterial species, has been linked to conditions ranging from obesity to multiple sclerosis.

The environmental trade-offs of autonomous vehicles

Optimistic predictions expect reliable autonomous vehicles to be commercially available by 2030, at a time when mobility is undergoing a profound shift away from traditional modes of transportation and towards door-to-door services. Previous analysis suggested that public transport will lose market share to autonomous vehicles, but the environmental impact of changing transport use has hardly been considered. New research shows that the convenience of autonomous vehicles would likely come at an environmental cost.

Newly discovered quasicrystal was created by the first nuclear explosion at Trinity Site

A newly discovered quasicrystal that was created by the first nuclear explosion at Trinity Site, N.M., on July 16, 1945, could someday help scientists better understand illicit nuclear explosions and curb nuclear proliferation.

Elevated pulse rate in non-sleepy OSA heart patients may lead to serious cardiac events

Some patients with coronary artery disease and non-sleepy obstructive sleep apnea (OSA) may be protected against serious cardiac events by CPAP therapy, according to research presented at the ATS 2021 International Conference.

Machine learning (AI) accurately predicts cardiac arrest risk

A branch of artificial intelligence (AI), called machine learning, can accurately predict the risk of an out of hospital cardiac arrest—when the heart suddenly stops beating—using a combination of timing and weather data, finds research published online in the journal Heart.

More severe OSA associated with COVID-19 risk, but longer use of PAP reduces risk

The more severe a patient's obstructive sleep apnea (OSA), the greater their risk of contracting COVID-19, according to research presented at the ATS 2021 International Conference. The study also found that the longer patients used positive airway pressure (PAP) each night, the more they lowered their COVID-19 risk.

Autistic people across Europe have struggled to access COVID-19 services during pandemic

Autistic people across Europe have not only struggled to access standard health and care services during the pandemic, but, crucially, also those for COVID-19, finds research published in the online journal BMJ Open.

India reports record day of virus deaths as cases level off

India's total virus cases since the pandemic began swept past 25 million on Tuesday as the country registered more than 260,000 new cases and a record 4,329 fatalities in the past 24 hours.

California places Tesla's 'Full Self-Driving' under review

California's Department of Motor Vehicles is reviewing whether Tesla is violating a state regulation by advertising its vehicles as being fully autonomous without meeting the legal definition of self-driving.

EXPLAINER: How AT&T-Discovery deal affects consumers, rivals

AT&T said Monday it will combine its massive WarnerMedia media assets, which includes HBO and CNN, with Discovery Inc. to create a new media heavyweight in a $43 billion deal.

Uninsured cancer patients 60-64 face worse outcomes than Medicare beneficiaries aged 66-69

MUSC Hollings Cancer Center lung cancer researcher Gerard Silvestri, M.D., found that a lack of insurance leads to worse cancer survival than for those with Medicare, in a paper published in the May issue of Health Affairs. This work, a joint effort between Silvestri and researchers at the American Cancer Society, highlights the current dire barrier in medical care: Many people cannot take advantage of the newer potentially lifesaving treatments due to the high costs.

Patients undergoing dialysis shown to maintain antibody response for at least 6 months following SARS-CoV-2 infection

A large cohort study found that despite impaired immunity, the vast majority of patients receiving dialysis maintained SARS-CoV-2 antibody levels 6 months after infection. A slow and continual decline in median antibody levels was observed over time, but the researchers found no indication that subgroups with impaired immunity had a shorter-lived humoral response compared with a healthy population. The findings are published in Annals of Internal Medicine.

21 dead, 96 missing as cyclone batters Covid-stricken India

At least 21 people were dead and 96 were missing on Tuesday after a monster cyclone slammed into western India, compounding the misery for millions of others who are enduring a devastating coronavirus surge.

No new fossil fuel projects for net-zero: IEA

All future fossil fuel projects must be scrapped if the world is to reach net-zero carbon emissions by 2050 and to stand any chance of limiting warming to 1.5C, the International Energy Agency said Tuesday.

Linguistic and biological diversity linked

Cultural diversity—indicated by linguistic diversity—and biodiversity are linked, and their connection may be another way to preserve both natural environments and Indigenous populations in Africa and perhaps worldwide, according to an international team of researchers.

Indigenous co-management essential for protecting, restoring Bears Ears region

Indigenous people have lived in the Bears Ears region of southeastern Utah for millennia. Ancestral Pueblos built elaborate houses, check dams, agricultural terraces and other modifications of the landscape, leaving ecological legacies that persist to this day. Identifying how humans interacted with past environments is critical for informing how best to protect archaeological sites and ecological diversity in the present. This "archaeo-ecosystem" approach would facilitate co-management of public lands in ways that promote Indigenous health, cultural reclamation and sovereignty.

Better donor evaluation, drug therapy in sight for kidney transplants

Looking to improve organ transplant success, researchers are working to learn more about how an immune molecule, which also protects a fetus, helps protect some transplanted kidneys, and to develop a synthetic version of that molecule that could help more patients.

New tool uses AI to target smarter building repairs with limited funds

Researchers have developed a tool to help governments and other organizations with limited budgets spend money on building repairs more wisely.

NASA launches rocket in search of aurora answers

NASA launched one of its largest sounding rockets Sunday from an East Coast facility in an experiment led by a University of Alaska Fairbanks Geophysical Institute space physics professor.