|
World: Sciencedaily.com: [ Geolocation ] (Laatste update: vrijdag 15 april 2022 21:37:51)
|
Rain, floods and green infrastructure: Are cities mitigating the hazards equitably?
New research combines demographic data with the distribution of GI and geographic areas prone to rainwater flooding in Portland, Phoenix and Atlanta and asks whether these cities are equitably building GI to mitigate flood risks. Fri, 15 Apr 2022 12:47:24 EDT
|
A new toolkit to engineer safe and efficient therapeutic cells
Researchers undertook a systematic analysis of the molecular building blocks used to engineer therapeutic cells. Their work resulted in a comprehensive rule book for the design of therapeutic cells with improved specificity and safety, and for the eventual customization of cell-based therapies. Fri, 15 Apr 2022 12:47:18 EDT
|
Methane from waste should not be wasted: Exploring landfill ecosystems
Scientists explore microbial communities flourishing in leachate, a liquid percolating through solid waste in a landfill. They find that the composition and behavior of specific microbes found in arid landfills, like those in Arizona, are distinct from similar communities in more subtropical or temperate climates. Microbial composition also differs depending on the age of the landfill deposits. Fri, 15 Apr 2022 12:47:16 EDT
|
Research could enable assembly line synthesis of prevalent amine-containing drugs
A research team has discovered a new chemical reaction that provides a simple, rapid way of making tertiary amines -- swinging the door wide open to the discovery of new medicinal compounds. Fri, 15 Apr 2022 11:58:04 EDT
|
Socioeconomic factors affect response to depression treatment
A new research study shows how socioeconomic factors affect outcomes for patients being treated for depression even when receiving equal access to care. Fri, 15 Apr 2022 11:21:55 EDT
|
Study reveals male sex hormones are new targets for cancer immunotherapy
A study examined the differences in intratumoral immune responses between male and female cancers of non-reproductive origin. Fri, 15 Apr 2022 11:21:52 EDT
|
Smoking reduces wealth's tendency to increase life expectancy
A new study finds that the percentage of Americans surviving from age 65 to 85 was 19 percentage points higher for someone with at least $300,000 in wealth than for those with no assets. But there was a 37 percentage point difference between those who never smoked and current smokers. Fri, 15 Apr 2022 11:21:50 EDT
|
Decoding a direct dialog between the gut microbiota and the brain
Gut microbiota by-products circulate in the bloodstream, regulating host physiological processes including immunity, metabolism and brain functions. Scientists have discovered that hypothalamic neurons in an animal model directly detect variations in bacterial activity and adapt appetite and body temperature accordingly. These findings demonstrate that a direct dialog occurs between the gut microbiota and the brain, a discovery that could lead to new therapeutic approaches for tackling metabolic disorders such as diabetes and obesity. Fri, 15 Apr 2022 10:05:51 EDT
|
Lost South American wildflower named 'extinctus' rediscovered (but still endangered)
This South American wildflower was presumed extinct -- to the point that its official scientific name is Gasteranthus extinctus. But now, scientists are reporting the first confirmed sightings in 40 years. This not only means that this one little flower made it, but that an important concept in conservation biology called Centinelan extinction needs to be re-examined. Fri, 15 Apr 2022 10:05:47 EDT
|
Drug reduced frequency of breathing pauses in sleep apnea
A new study has paved the way for the first drug treatment for sleep apnea. Compared to before receiving the treatment, breathing pauses decreased with on average more than 20 per hour for patients given the drug. Thu, 14 Apr 2022 16:55:51 EDT
|
From cell fat to cell fate
A cell's production of fat molecules can be a key factor in determining what that cell will become. Thu, 14 Apr 2022 14:39:58 EDT
|
Light amplification accelerates chemical reactions in aerosols
Aerosols in the atmosphere react to incident sunlight. This light is amplified in the interior of the aerosol droplets and particles, accelerating reactions. Researchers have now been able to demonstrate and quantify this effect and recommend factoring it into future climate models. Thu, 14 Apr 2022 14:39:55 EDT
|
New research sheds fresh light on the 'presenteeism'
Employees who are unwell only engage in 'presenteeism' -- continuing to work when experiencing ill-health -- when they have not met their daily work goals, according to new research. Thu, 14 Apr 2022 14:39:52 EDT
|
Open sharing of biotechnology research: Transparency versus security
As biotechnology advances, the risk of accidental or deliberate misuse of biological research like viral engineering is increasing. At the same time, 'open science' practices like the public sharing of research data and protocols are becoming widespread. An article examines how open science practices and the risks of misuse interface and proposes solutions to the problems identified. Thu, 14 Apr 2022 14:39:38 EDT
|
Declining nitrogen availability found in our nitrogen-rich world
Following years of attention to surplus nitrogen in the environment, our evolving understanding has led to new concerns about nitrogen insufficiency in areas of the world that do not receive significant inputs of nitrogen from human activities. A multi-institutional team of researchers now describes the causes of declining nitrogen availability and how it affects ecosystem function. Thu, 14 Apr 2022 14:39:35 EDT
|
Structures considered key to gene expression are surprisingly fleeting
Scientists find that loops in the genome may be much rarer and shorter-lived than previously thought, lasting only tens of minutes, which suggests current theories of how loops influence gene expression may need to be revised. Thu, 14 Apr 2022 14:39:29 EDT
|
Key signaling pathway in immune cells could be new Alzheimer’s target
Inhibiting an important signaling pathway in brain-resident immune cells may calm brain inflammation and thereby slow the disease process in Alzheimer's and some other neurodegenerative diseases, suggests a new study. The findings point to the possibility of new therapeutic strategies against neurodegenerative diseases, which are relatively common in older adults and so far have no effective, disease-modifying treatments. Thu, 14 Apr 2022 13:52:50 EDT
|
Racial and ethnic disparities in telemedicine usage persist during pandemic
A new study finds racial and ethnic disparities in the use of telemedicine and access to care persist during the COVID-19 pandemic. Thu, 14 Apr 2022 12:51:43 EDT
|
A novel computing approach to recognizing chaos
A new paper proposes using the single nonlinear node delay-based reservoir computer to identify chaotic dynamics. Thu, 14 Apr 2022 12:51:40 EDT
|
Spatial maps of melanoma
Melanoma is a somewhat unusual cancer -- one that blooms before our very eyes, often on sun-exposed skin, and can quickly become deadly as it turns our own skin against us and spreads to other organs. Fortunately, when caught early, melanoma can often be cured by simple surgery, and there are now better treatments for advanced cases, including immunotherapies that prime a patient's immune system to fight off the cancer. However, much remains unknown about melanoma, including the details of how it develops in the earliest stages, and how to best identify and treat the most dangerous early cases. Spatial maps of melanoma reveal how individual cells interact as cancer progresses. Thu, 14 Apr 2022 12:51:32 EDT
|
Pandemic adversely impacts already stressed national forests, research finds
Researchers found a dramatic increase during the pandemic of visitors to the parks and protected areas of New England that resulted in significant social, situational and ecological impacts on people's behavior, decision making and experience quality. Thu, 14 Apr 2022 12:51:22 EDT
|
Your mental health may impact your chances of breakthrough COVID
A new study has shown that people who are vaccinated against SARS-CoV-2, and have a history of certain psychiatric conditions, have a heightened risk of COVID-19 -- a finding that may be related to impaired immune response as well as risky behaviors associated with some disorders. Thu, 14 Apr 2022 12:51:17 EDT
|
Chlorinated water supplies don’t disturb healthy gut microbiomes in young children
Scientists find chlorinated water supplies in Bangladesh have little effect on the abundance and diversity of bacteria in children's guts. This set of bacteria, or gut microbiome, plays an important role in maintaining health as children grow older. Thu, 14 Apr 2022 12:51:14 EDT
|
How to balance biodiversity goals with limited economic resources
In 2019, a landmark report gave the world its first report card on biodiversity loss. There was one crystal clear conclusion: human actions threaten more species with global extinction than ever before. Now, a research team has reviewed combining conservation with practical economic tools using a case study of Colombia, South America, a high priority but underfunded country for biodiversity conservation. Thu, 14 Apr 2022 12:51:11 EDT
|
Nova outbursts are apparently a source for cosmic rays
The MAGIC telescopes have observed the nova RS Ophiuchi shining brightly in gamma rays at extremely high energy. The Gamma rays emanate from protons that are accelerated to very high energies in the shock front following the explosion. This suggests that novae are also a source of the ubiquitous cosmic radiation in the universe which consists mainly of protons rich in energy, which race through space at almost the speed of light. Thu, 14 Apr 2022 12:51:09 EDT
|