ScienceDaily: Latest Science News


Too many disk galaxies than theory allows

Posted: 04 Feb 2022 09:35 AM PST

The Standard Model of Cosmology describes how the universe came into being according to the view of most physicists. Researchers have now studied the evolution of galaxies within this model, finding considerable discrepancies with actual observations.

How our body controls inflammation during clean-up mechanisms of damaged cells

Posted: 04 Feb 2022 08:34 AM PST

A research team has investigated in detail how messenger substances signal inflammation during the removal of damaged cells in the body. Using high-resolution microscopy methods, the researchers were able to show that two proteins interact dynamically with each other and thus determine whether a dying cell triggers an inflammatory reaction in the body.

Researchers resurrect and improve a technique for detecting transistor defects

Posted: 04 Feb 2022 08:33 AM PST

Researchers have revived and improved a once-reliable technique to identify and count defects in transistors, the building blocks of modern electronic devices such as smartphones and computers.

Those at highest risk for severe COVID-19 often least likely to get monoclonal antibodies, study finds

Posted: 04 Feb 2022 08:33 AM PST

People over age 65 at the highest risk for severe COVID-19 have often been the least likely to receive monoclonal antibodies (mAbs) -- a highly effective treatment for the disease -- both across and within U.S. states, according to new research.

US household air conditioning use could exceed electric capacity in next decade due to climate change

Posted: 04 Feb 2022 06:31 AM PST

An 8% increase in summer air conditioning demand can be expected in the U.S. when the global average temperature exceeds 1.5 degrees Celsius above pre-industrial levels. This climate driven increase is likely to cause prolonged blackouts during peak summer heat if states do not expand capacity or improve efficiency, according to a new study of household-level demand.

Study looks at glacial lakes, dams in Alaska and potential for flooding

Posted: 04 Feb 2022 06:31 AM PST

Researchers have produced a detailed inventory of glacial lakes and dams over a 35-year timeframe from 1984 to 2019 in Alaska and northwest Canada.

Dose-finding trial paves way for new rotavirus vaccine to prevent a deadly diarrheal disease from birth

Posted: 04 Feb 2022 06:31 AM PST

Researchers have found a reduced dose of an Australian-developed rotavirus vaccine produced a robust immune response in children at risk from deadly diarrheal disease in Africa.

Liquid metals, surface patterns, and the romance of the three kingdoms

Posted: 04 Feb 2022 06:31 AM PST

Diverging and converging patterns forming on the surface of solidifying liquid metals resemble plotlines in a complex historical novel, in a new international study. The cyclic patterns observed are rare, and had not been observed in solidification structures prior to this. Better understanding and control of fundamental phase transitions and pattern formation could see future liquid metal applications in plasmonic sensing and high-efficiency electronics and optics.

Tweaked genes borrowed from bacteria excite heart cells in live mice

Posted: 04 Feb 2022 06:31 AM PST

Biomedical engineers have demonstrated a gene therapy that helps heart muscle cells electrically activate in live mice. The approach features engineered bacterial genes that code for sodium ion channels and could lead to therapies to treat a wide variety of electrical heart diseases and disorders.

Mosquitoes are seeing red: These new findings about their vision could help you hide from these disease vectors

Posted: 04 Feb 2022 05:54 AM PST

Beating the bite of mosquitoes this spring and summer could hinge on your attire and your skin. New research indicates that a common mosquito species -- after detecting a telltale gas that we exhale -- flies toward specific colors, including red, orange, black and cyan. The mosquitoes tend to ignore other colors, such as green, purple, blue and white. The researchers believe these findings help explain how mosquitoes find hosts, since human skin, regardless of overall pigmentation, emits a strong red-orange 'signal' to their eyes.

Scientists move HIV vaccine research forward by developing an immunogen that produces tier-2 antibodies

Posted: 04 Feb 2022 05:54 AM PST

Scientists take a promising step in the direction of developing an HIV vaccine using a unique native-like trimer to develop Tier-2 neutralizing antibodies -- the kind that matter for combating HIV -- in mice.

Optimizing indoor light conditions to mimic the natural light-dark cycle could help mitigate adverse metabolic effects of extended periods of exposure to indoor lighting

Posted: 03 Feb 2022 04:25 PM PST

A new study finds that the timing of exposure to bright light can have a significant influence on postprandial (post-meal) glucose metabolism, thermoregulation, and energy expenditure during sleep in overweight, insulin-resistant adults.

Perception study may explain promising depression therapy

Posted: 03 Feb 2022 04:25 PM PST

Researchers have demonstrated the importance of a specific type of connection between brain cells that may explain ketamine's potential as a treatment for depression.

Losing amphibian diversity also means losing poison diversity

Posted: 03 Feb 2022 04:25 PM PST

Biologists argue that more research needs to be done on the colorful yet poisonous harlequin toads of Central and South America, not only because their ecology is poorly known, but because their toxins are even less studied. Since animal and plant toxins are often inspirations for new drugs, losing the toads through habitat destruction and fungal infections means we lose their poison diversity as well as their genetic diversity.

How long-term cannabis use can damage lungs

Posted: 03 Feb 2022 04:23 PM PST

Smoking cannabis leads to lung damage, but in a different way to tobacco, new research has found. The findings come from the long-running Dunedin Multidisciplinary Health and Development Study, which has documented cannabis use and measured lung function throughout adult life up to age 45 in more than 1,000 individuals born in Dunedin, New Zealand in 1972/73.

Do bikeshare systems complement or replace public transit?

Posted: 03 Feb 2022 03:52 PM PST

Bikeshare systems have come a long way since they were first introduced in the Netherlands in the 1960s. They are popular in cities around the world, but how do bike systems affect existing public transportation?

Like peanut butter? This algorithm has a hunch as to what you'll buy next

Posted: 03 Feb 2022 03:52 PM PST

New research brings a methodology called tensor decomposition -- used by scientists to find patterns in massive volumes of data -- into the world of online shopping to recommend complementary products more carefully tailored to customer preferences.

Scientists create vast data resource to uncover ALS subtypes

Posted: 03 Feb 2022 03:52 PM PST

A new cloud-based data resource provides the research community with a comprehensive set of tools to help identify new subtypes of amyotrophic lateral sclerosis (ALS), a fatal neurological disorder.

Trametinib represents potential new standard-of-care for patients with recurrent low-grade serous ovarian carcinoma

Posted: 03 Feb 2022 03:50 PM PST

A study has reported that the MEK inhibitor trametinib reduced the risk of disease progression or death by 52% compared to standard-of-care therapies for the treatment of low-grade serous ovarian carcinoma.

Untangling mixed (neural) signals

Posted: 03 Feb 2022 01:12 PM PST

New research has uncovered how neurons encode and decode information and differentiate between motor and sensory signals.

How fault lines in a kitchen sink are changing what we know about geology

Posted: 03 Feb 2022 01:12 PM PST

Researchers unveiled a physical model that yields an unprecedented, high-resolution look at the slip rates of faults, which determine the likelihood of earthquakes.

New highly virulent and damaging HIV variant discovered in the Netherlands

Posted: 03 Feb 2022 01:11 PM PST

A new HIV variant with higher virulence and more damaging health impacts has been discovered in a new study.

Neuroscientists use deep learning model to simulate brain topography

Posted: 03 Feb 2022 01:11 PM PST

A more accurate model of the visual system may help neuroscientists and clinicians develop better treatments for alexia, prosopagnosia and agnosia.

Observation of quantum transport at room temperature in a 2.8-nanometer CNT transistor

Posted: 03 Feb 2022 09:30 AM PST

A research team has developed an in situ transmission electron microscopy (TEM) technique that can be used to precisely manipulate individual molecular structures. Using this technique, the team succeeded in fabricating carbon nanotube (CNT) intramolecular transistors by locally altering the CNT's helical structure, thereby making a portion of it to undergo a metal-to-semiconductor transition in a controlled manner.

Treasure in tree rings: Using untapped tree ring data to calculate carbon sequestration

Posted: 03 Feb 2022 09:30 AM PST

Forests around the world have the capacity to pull carbon out of the atmosphere to battle global climate change. But how much carbon they actually absorb is a question that still needs answering, and tree ring data can help, according to a new research synthesis.

Supermountains controlled the evolution of life on Earth

Posted: 03 Feb 2022 07:30 AM PST

Giant mountain ranges at least as high as the Himalayas and stretching up to 8,000 kilometers across entire supercontinents played a crucial role in the evolution of early life on Earth, according to a new study.