A safe, fast and cheap testing method that uses magnetic nanoparticles to detect viruses in both clinical and wastewater samples has been developed by KAUST researchers. The centrifuge-free approach is compatible with magnetic bead-based automated systems that are already used to process hundreds of samples. "Our silica magnetic nanoparticle-based workflow can be assembled from scratch by any researcher," says lead author Gerardo Ramos-Mandujano. "It rivals commercial viral-RNA extraction kits while lowering the risk of handling potentially infectious samples." To diagnose COVID-19, clinicians extract SARS-CoV-2 viral RNA from different types of clinical samples, such as nasopharyngeal swabs, and detect the virus using ...

Air pollution from fuel combustion is one of the greatest environmental problems, especially in urban environments. In densely populated cities, the presence of nitrogen oxides, very small carbon particles, and carbon monoxide (CO) in the air seriously harms the human health and increases mortality. A collaboration between researchers from the University of Barcelona and from the Boreskov Institute of Catalysis of the Russian Academy of Sciences in Novosibirsk (Russia) opens the way for reducing emissions of automotive pollutants. In a recent study, the scientists ...

Ribonucleic acid (RNA) is key to various fundamental biological processes. It transfers genetic information, translates it into proteins or supports gene regulation. To achieve a more detailed understanding of the precise functions it performs, researchers based at Heidelberg University and at the Karlsruhe Institute of Technology (KIT) have devised a new fluorescence imaging method which enables live-cell RNA imaging with unprecedented resolution. The method is based on a novel molecular marker called Rhodamine-Binding Aptamer for Super-Resolution Imaging Techniques (RhoBAST). This RNA-based fluorescence marker is used in combination with the dye rhodamine. Due to their distinctive properties, marker and dye interact in a very specific way, which makes individual RNA molecules ...

Similar to the fact that a person would act differently when being alone, materials can also obtain unique qualities when being separated in atom-level, among which is the enhanced catalyzing ability. Single-atom catalysts have shown enormous catalyzing capability since its first appearance. By preparing 2-dimensional (2D) single-atom monolayer crystals, scientists can expect to get catalysts with high loading density of active sites as well as great stability. However, the question herein is that only the edge atoms in the 2D monolayer have shown this effect while most of the atoms are inside the basal plane, which is critically limiting the efficiency ...

One of the main culprits of global warming is the vast amount of carbon dioxide pumped out into the atmosphere mostly from burning fossil fuels and the production of steel and cement. In response, scientists have been trying out a process that can sequester waste carbon dioxide, transporting it into a storage site, and then depositing it at a place where it cannot enter the atmosphere. The problem is that capturing carbon from power plants and industrial emissions isn't very cost-effective. The main reason is that waste carbon dioxide isn't emitted pure, but is mixed with nitrogen and other gases, and extracting it from industrial emissions ...

NUI Galway study finds problem and non-problem gamblers differ in the gratifications they seek from mobile gambling Non problematic mobile gambling is associated with positive mood Advice for regulators and mobile gamblers on how to avoid gambling harms A study carried out by the J.E. Cairnes School of Business and Economics at NUI Galway has examined how the different gratifications sought from mobile gambling explain problematic versus non-problematic patterns in highly involved gamblers. For a subgroup of vulnerable individuals, gambling involvement can be pathological and reflects a personality disorder. ...

Previous research from the Norwegian University of Science and Technology (NTNU) has shown that people with anxiety disorders can benefit from two types of therapy. But in a new NTNU study, the same patients also exhibited major changes on a scientific personality test. The treatment resulted in patients scoring lower on the neuroticism personality trait, and thereby perhaps having a lower risk of relapse. In general, the patients' personality profiles also normalized. "Our findings might apply to treatment in general. The risk of relapse could be less if we manage to reduce patients' neuroticism," says Professor Leif Edward Ottesen Kennair at NTNU's Department of Psychology. Two effective methods People ...

PHILADELPHIA - Heart attack, kidney failure, stroke. These are just a few of the life-threatening complications that patients are at risk for following surgery. Now Jefferson researchers have developed an easy-to-use, web-based tool that predicts the risk of post-surgical complications such as kidney failure and stroke. The model may help medical professionals put preventive measures in place before the need for emergency intervention. "We need to be able to assess the risk of life-threatening, post-surgical complications so we can then come up with individualized ways to ...

Amsterdam, February 25, 2021 - COVID-19 has wrought havoc on the global economy and the world's public health systems. People with disabilities are more likely to suffer severe cases of the disease. Experts advocate in this special issue of the Journal of Vocational Rehabilitation that vocational rehabilitation across the major life phases of health, work, and education must focus on access to technology and home-based employment and ensure people with disabilities are prepared for the new global workplace. To date, 500,000 Americans who have acquired COVID-19 have died, making it the current leading cause of death in the United States with over 2.4 million deaths worldwide. Individuals with some types of disabilities, especially those with multiple ...

People's teeth-chattering experiences in the dentist's chair could be improved by fresh insights into how tiny, powerful bubbles are formed by ultra-fast vibrations, a study suggests. The physics of how so-called nanobubbles are generated could have a range of clinical and industrial applications, including in dental hygiene devices used to remove plaque, experts say. The findings could also inform the development of other technologies - such as devices to selectively target tumour cells - that harness the energy released when the bubbles burst. Engineers at the University of Edinburgh ran complex ...

Herndon, Va. (February 25, 2021) - Climate services are vital tools for decision makers addressing climate change in developing countries. Science-based seasonal forecasts and accompanying materials can support climate risk management in agriculture, health, water management, energy, and disaster risk reduction. But in East Africa, natural resource managers have been slow to use climate information services, partly because they are difficult to understand and may not feel relevant for their local planning purposes. A new study published by the journal Risk Analysis suggests that one way to encourage policymakers in East Africa to use climate services more often is to appeal to the motivational factors that influence their professional actions on climate change. Researchers ...

Materials impossible to obtain with existing methods can be produced using a solid, nanostructured silica solvent. Scientists from the Institute of Nuclear Physics of the Polish Academy of Sciences in Cracow presented an innovative approach to the production of substances with unique physical and chemical properties. A team of physicists from Cracow (Poland) has succeeded in developing a flexible method for producing sol¬id, two-dimensional silica solvents to produce materials with unique optical, magnetic and structural properties. The term "solid solvent" here means a substance which, when immersed in a solution of the appropriate ...

Herndon, Va. (February 24, 2021) - Insurance policy premiums from the National Flood Insurance Program (NFIP) allow policyholders to maintain a lower, grandfathered rate even when the risk escalates. But as coastal flooding increases due to rising sea level and more intense storms, new research published in the journal Risk Analysis suggests this grandfathered policy could lead to big losses for the NFIP. A team of experts led by Carolyn Kousky, executive director of the University of Pennsylvania's Wharton Risk Management and Decision Processes Center, studied the effect of sea level rise on a New York City neighborhood to illustrate how grandfathered rates could impact both policyholder premiums and program revenue for the NFIP over the next 30 years. Their results project losses ...

Woods Hole, Mass. (February 25, 2021) -- Woods Hole Oceanographic Institution (WHOI) along with National Oceanic and Atmospheric Administration (NOAA) Fisheries have released the first broad scale synthesis of available information derived from right whale health assessment techniques. The manuscript published today in the science journal Diseases of Aquatic Organisms, reviews available tools, and current understanding of the health status and trends of individual whales and the species. The paper concludes with recommendations for additional information needs and necessary ...

CHAMPAIGN, Ill. -- Hemodialysis patients routinely experience side effects such as fatigue, lightheadedness and nausea during their treatment sessions. But patients in a study who used a virtual reality program to engage in a mindfulness/meditation exercise reported that these treatment-related symptoms were greatly reduced. Patients in the study wore a head-mounted virtual reality display to participate in a 25-minute mindfulness/meditation intervention called Joviality, a fully immersive experience that transported them to settings away from the clinic. "While virtual reality has been found to be beneficial in pain management and physical rehabilitation, its potential for helping dialysis patients contend with ...

Despite strides in family-leave offerings, and men taking a greater role in parenting, women in academia still experience about a 20% drop in productivity after having a child, while their male counterparts generally do not, according to new University of Colorado Boulder research. The study, published Feb. 24 in the journal Science Advances, suggests that persistent differences in parenting roles are the key reason that men tend to publish more research papers than women. Because publishing is closely linked to promotion, this gap could have long-term impacts on what academia looks like in the future. The researchers also found that while parental leave is critically important for women seeking faculty positions, 43% of institutions have ...

Loss of smell or olfactory dysfunction is an early indication of the neurodegenerative Alzheimer's disease (AD) and appears in approximately 90% of all patients. While loss of smell is a major symptom, patients with AD are only unable to recognize specific odors and do not completely lose their sense of smell; this suggests a possible region-specific involvement of the olfactive center in the brain. Amyloid β (Aβ), a toxic protein that accumulates in the brain is a known contributing factor in AD pathogenesis and is also present in the olfactory system that controls the sense of smell. ...

Benefits of team building exercises jeopardised if not truly voluntary Employees who like to keep their work and private lives separate may want to avoid team-building exercises Study shows why some colleagues hate compulsory team bonding Spending time with people you aren't close could be more effective than general team bonding exercises  Zoom dress up parties, tug-of-war, 'trust falls' and escape rooms - team building exercises have become the go-to tool for managers trying to increase organisational and team rapport and productivity, but unfortunately many employees resent compulsory bonding and often regard ...

EUGENE, Ore. -- Feb. 25, 2021 -- When the pungent smell of rotting food sends a person running, that disgusted feeling is an evolved response that helps avoid exposure to pathogens, say University of Oregon anthropologists. In a project that blended anthropology, biology and psychology, UO researchers explored disgust behaviors among Ecuador's indigenous Shuar people. Those living in the most market-integrated households were found to have the highest levels of disgust sensitivity. The research was detailed in a paper published online Feb. 23 ahead of print ...

Climate change-driven extreme weather events, including devastating Australian bushfires, have created the urgent need for a new approach to planning and building in high fire risk areas and a shift to climate-resilient towns and cities. Published in the prestigious 'Nature Urban Sustainability', research co-author John Curtin Distinguished Professor Peter Newman from the Curtin University Sustainability Policy Institute said climate change had increased the threat of bushfires and other climate change issues driving an urgent need to revise the location and design of settlements. "Bushfires have become more frequent and more ...

Just as environmentally conscious scientists predicted, our excessive use of plastics is coming back to bite us. Microplastics (MPs), plastic particles smaller than a few millimeters, can now be found everywhere, but more so in seawater. As expected, MPs are harmful to both environment and health, although their exact effects are unclear. To get a better grasp of the extent of the MP problem, it is necessary to quantify how much we are exposed to them. Table salt has been shown to contain MPs, making it an ideal study target to gauge human exposure to MPs. Although many studies have measured the concentration of ...

The water cycle over the Tibetan Plateau (TP), as known as "Asian Water Tower", is vital to the regional and downstream climate and ecosystem. A new study found that the interannual variability of the summer precipitation recycle ratio over the TP is influenced by the El NIño events in preceding winters. The study was published in Journal of Geophysical Research: Atmospheres and conducted by researchers from the Institute of Atmospheric Physics at the Chinese Academy of Sciences. The precipitation recycle ratio is the contribution rate of the local evaporation ...

X-ray imaging is widely used in areas such as healthcare and forensic science, but existing X-ray machines are unable to capture curved three-dimensional (3D) objects at high resolution, and they are also relatively expensive. Now, an international team of researchers led by chemists from the National University of Singapore (NUS) has demonstrated a potential solution to overcome these limitations by using nanocrystals that can trap X-rays. The research, which was conducted with collaborators from Fuzhou University and The Hong Kong Polytechnic University, could be used not only for healthcare but also to detect defects in electronics, authenticate valuable works of art, or examine archaeological objects at microscopic scale. The findings were ...

WASHINGTON--Puberty looks different, in terms of both reproductive hormones and breast maturation, in girls with excess total body fat, according to a new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism. Previous studies found that girls with obesity start puberty and experience their first menstrual period earlier than girls with normal weight. It is unknown if excess body fat can alter not only the timing of puberty, but also a girl's reproductive hormone levels and development of reproductive organs such as the breasts, ovaries and uterus. "We found that in mid- to late puberty, girls with greater total body fat demonstrated higher ...

A modeling study suggests a majority of adult COVID-19 hospitalizations nationwide are attributable to at least one of four pre-existing conditions: obesity, hypertension, diabetes, and heart failure, in that order. The study, published today in the Journal of the American Heart Association (JAHA) and led by researchers at the Gerald J. and Dorothy R. Friedman School of Nutrition Science and Policy at Tufts University, used a mathematical simulation to estimate the number and proportion of national COVID-19 hospitalizations that could have been prevented if Americans did not suffer from four major cardiometabolic conditions. Each condition has been strongly linked in other studies to increased risk of poor outcomes with COVID-19 infection. "While ...