Stress was leading reason teachers quit before pandemic, and COVID has made matters worse
2021-02-22
Stress was the most common reason teachers cited for leaving the profession before and during the pandemic, according to a RAND Corporation survey of nearly 1,000 former public-school teachers. Three of four former teachers said work was often or always stressful in the most recent year in which they taught in a public school.
In fact, teachers cited stress nearly twice as often as insufficient pay as a reason for quitting. Most former teachers went on to take jobs with less or equal pay, with 3 in 10 taking jobs with no health insurance or retirement benefits.
COVID-19 appears to have exacerbated teachers' stress. Almost half of public-school ...
Drones used to locate dangerous, unplugged oil wells
2021-02-22
BINGHAMTON, NY -- There are millions of unplugged oil wells in the United States, which pose a serious threat to the environment. Using drones, researchers from Binghamton University, State University of New York have developed a new method to locate these hard-to-locate and dangerous wells.
New York State has an estimated 35,000 abandoned oil or gas wells, while Pennsylvania has more than 600,000 dating back to the early days of drilling. Overall, the United States has an estimated 2 million orphaned wells. These wells pose multiple risks. They release methane into the atmosphere, a far more potent greenhouse gas than carbon dioxide, ...
New study on the forecasting of extreme rainfall events in Mediterranean countries
2021-02-22
Extreme rainfall has devastating consequences for societies and economies. Locations around the Mediterranean are frequently affected by such events, leading to landslides and floods. "It is, however, extremely challenging to forecast many days in advance when and where exactly heavy rainfall will occur. Thus, researchers strive to develop new tools to better predict extreme weather phenomena allowing for early warnings and adequate mitigation strategies", explains first author Nikolaos Mastrantonas, who has carried out the study as a PhD student within the EU-funded research ...
New model helping identify pregnant women whose previous kidney injury puts them, babies at risk
2021-02-22
Young pregnant women, who appear to have fully recovered from an acute injury that reduced their kidney function, have higher rates of significant problems like preeclampsia and low birthweight babies, problems which indicate their kidneys have not actually fully recovered.
Now scientists have developed a rodent model that is enabling studies to better understand, identify and ideally avoid this recently identified association, they report in the Journal of the American Society of Nephrology.
"We are talking about a population of young women that we usually think about as protected and healthy, and they are not if they have had a kidney insult," says Dr. Jennifer C. Sullivan, pharmacologist and physiologist in the Department ...
Rapid evolution may help species adapt to climate change and competition
2021-02-22
VANCOUVER, Wash. - Loss of biodiversity in the face of climate change is a growing worldwide concern. Another major factor driving the loss of biodiversity is the establishment of invasive species, which often displace native species. A new study shows that species can adapt rapidly to an invader and that this evolutionary change can affect how they deal with a stressful climate.
"Our results demonstrate that interactions with competitors, including invasive species, can shape a species' evolution in response to climatic change," said co-author Seth Rudman, a WSU Vancouver adjunct professor who will join the faculty as an assistant ...
Music is a must for young drivers, according to Ben-Gurion U. researchers
2021-02-22
BEER-SHEVA, Israel...February 22, 2021 - A new study by Ben-Gurion University of the Negev (BGU) researchers resulted in a nearly unanimous response: driving is "absolutely impossible" without music.
"To young drivers 18-29, music in the car isn't just entertainment, it's part of their autosphere whether they're alone or not," says Prof. Warren Brodsky, director of the BGU Music Science Lab in the Department of the Arts. "They are so used to constant stimulation and absorbing great amounts of information throughout the day, that they don't question how the type of tunes they play might affect concentration, induce aggressive behavior, or cause them to miscalculate risky situations."
"As the fastest growing research university in Israel, BGU provides studies that give us ...
Study of auto recalls shows carmakers delay announcements until they 'hide in the herd'
2021-02-22
BLOOMINGTON, Ind. - Automotive recalls are occurring at record levels, but seem to be announced after inexplicable delays. A research study of 48 years of auto recalls announced in the United States finds carmakers frequently wait to make their announcements until after a competitor issues a recall - even if it is unrelated to similar defects.
This suggests that recall announcements may not be triggered solely by individual firms' product quality defect awareness or concern for the public interest, but may also be influenced by competitor recalls, a phenomenon that no prior research had investigated.
Researchers analyzed 3,117 auto recalls over a 48-year period -- from 1966 to 2013 -- using ...
There is no one-size-fits-all road to sustainability on "Patchwork Earth"
2021-02-22
In a world as diverse as our own, the journey towards a sustainable future will look different depending on where in the world we live, according to a recent paper published in One Earth and led by McGill University, with researchers from the Stockholm Resilience Centre.
"There are many regional pathways to a more sustainable future, but our lack of understanding about how these complex and sometimes contradictory pathways interact (and in particular when they synergize or compete with one another) limits our ability to choose the 'best' ones," says Elena Bennett, a professor in the Department of Natural ...
Low-quality maternal diet during pregnancy may be associated with late-childhood obesity
2021-02-22
Eating a low quality diet, high in foods and food components associated with chronic inflammation, during pregnancy may be associated with an increased risk of obesity and excess body fat in children, especially during late-childhood. The findings are published the open access journal BMC Medicine.
Researchers from University College Dublin, Ireland found that children of mothers who ate a higher quality diet, low in inflammation-associated foods, during pregnancy had a lower risk of obesity and lower body fat levels in late-childhood than children whose mothers ate a lower quality diet, ...
Psychological 'signature' for the extremist mind uncovered by Cambridge researchers
2021-02-22
Researchers have mapped an underlying "psychological signature" for people who are predisposed to holding extreme social, political or religious attitudes, and support violence in the name of ideology.
A new study suggests that a particular mix of personality traits and unconscious cognition - the ways our brains take in basic information - is a strong predictor for extremist views across a range of beliefs, including nationalism and religious fervour.
These mental characteristics include poorer working memory and slower "perceptual strategies" - the unconscious processing of changing stimuli, such as shape and colour - as well as tendencies towards impulsivity and sensation seeking.
This combination of cognitive and ...
Investment needed to bring down pancreatic cancer death rates in Europe
2021-02-22
Researchers have called on European policymakers to make adequate resources available to tackle pancreatic cancer, a disease that is almost invariably fatal and where little progress has been made over the past 40 years.
In the latest predictions for cancer deaths in the EU and UK for 2021, published in the leading cancer journal Annals of Oncology [1] today (Monday), researchers led by Carlo La Vecchia (MD), a professor at the University of Milan (Italy), say that pancreatic death rates are predicted to remain approximately stable for men, but continue to rise in women in most EU countries.
The researchers predict that ...
Pioneering research reveals gardens are secret powerhouse for pollinators
2021-02-22
Home gardens are by far the biggest source of food for pollinating insects, including bees and wasps, in cities and towns, according to new research.
The study, led by the University of Bristol and published today in the Journal of Ecology, measured for the first time how much nectar is produced in urban areas and discovered residential gardens accounted for the vast majority - some 85 per cent on average.
Results showed three gardens generated daily on average around a teaspoon of Nature's ambrosia, the unique sugar-rich liquid found in flowers which pollinators drink for energy. While a teaspoon ...
Bioengineered hybrid muscle fiber for regenerative medicine
2021-02-22
Muscle is the largest organ that accounts for 40% of body mass and plays an essential role in maintaining our lives. Muscle tissue is notable for its unique ability for spontaneous regeneration. However, in serious injuries such as those sustained in car accidents or tumor resection which results in a volumetric muscle loss (VML), the muscle's ability to recover is greatly diminished. Currently, VML treatments comprise surgical interventions with autologous muscle flaps or grafts accompanied by physical therapy. However, surgical procedures often lead to a reduced muscular function, and in some cases result in a complete graft failure. Thus, there is a demand for additional therapeutic options to improve muscle loss recovery.
A promising strategy to improve ...
Colorful connection found in coral's ability to survive higher temperatures
2021-02-21
Coral within the family Acropora are fast growers and thus important for reef growth, island formation, and coastal protection but, due to global environmental pressures, are in decline
A species within this family has three different color morphs - brown, yellow-green, and purple, which appear to respond differently to high temperatures
Researchers looked at the different proteins expressed by the different color morphs, to see whether these were related to their resilience to a changing environment
The green variant was found to maintain high levels of green fluorescent proteins during summer heatwaves and was less likely to bleach than the other two morphs
This suggest that resistance to thermal stress is influenced by a coral's underlying genetics, ...
Optical frequency combs found a new dimension
2021-02-20
Periodic pulses of light forming a comb in the frequency domain are
widely used for sensing and ranging. The key to the miniaturisation of
this technology towards chip-integrated solutions is the generation of
dissipative solitons in ring-shaped microresonators. Dissipative solitons
are stable pulses circulating around the circumference of a nonlinear
resonator.
Since their first demonstration, the process of dissipative soliton
formation has been extensively studied and today it is rather
considered as textbook knowledge. Several directions of further
development are ...
Depression, anxiety, loneliness are peaking in college students
2021-02-20
A survey by a Boston University researcher of nearly 33,000 college students across the country reveals the prevalence of depression and anxiety in young people continues to increase, now reaching its highest levels, a sign of the mounting stress factors due to the coronavirus pandemic, political unrest, and systemic racism and inequality.
"Half of students in fall 2020 screened positive for depression and/or anxiety," says END ...
Direct cloning method CAPTUREs novel microbial natural products
2021-02-19
Microorganisms possess natural product biosynthetic gene clusters (BGCs) that may harbor unique bioactivities for use in drug development and agricultural applications. However, many uncharacterized microbial BGCs remain inaccessible. Researchers at University of Illinois Urbana-Champaign previously demonstrated a technique using transcription factor decoys to activate large, silent BGCs in bacteria to aid in natural product discovery.
Now, they have developed a direct cloning method that aims to accelerate large-scale discovery of novel natural products. Their findings are reported in the journal Nature Communications.
Named Cas12a assisted precise targeted cloning using in vivo Cre-lox recombination (CAPTURE), ...
Time-lapse reveals the hidden dance of roots
2021-02-19
DURHAM, N.C. -- Duke researchers have been studying something that happens too slowly for our eyes to see. A team in biologist Philip Benfey's lab wanted to see how plant roots burrow into the soil. So they set up a camera on rice seeds sprouting in clear gel, taking a new picture every 15 minutes for several days after germination.
When they played their footage back at 15 frames per second, compressing 100 hours of growth into less than a minute, they saw that rice roots use a trick to gain their first foothold in the soil: their growing tips make ...
RUDN University chemist used iodine to synthesize new chalcogenides
2021-02-19
A chemist from RUDN University, working with a group of colleagues, synthesized three new chalcogenides (compounds that contain metals and elements from group 16 of the periodic table). The team suggested an unusual approach to synthesis that was based on iodine. An article about the work was published in the Dalton Transactions journal.
Chalcogens are elements of group 16 of the periodic table that include oxygen, sulfur, selenium, tellurium, polonium, and livermorium--an artificial radioactive element. Chalcogenides are compounds of chalcogens with metals that are used as photosensitive ...
Call to action for research ethics in the time of COVID-19 and BLM
2021-02-19
Several University of Illinois Chicago faculty members have addressed the issue of how to ethically conduct research with Black populations.
In their paper "Ethics of Research at the Intersection of COVID-19 and Black Lives Matter: A Call to Action," authors Natasha Crooks, an assistant professor, Phoenix Matthews, a professor, both of the UIC College of Nursing, and Geri Donenberg, director of the Center for Dissemination and Implementation Science at the UIC College of Medicine, highlight the historical issues that impact research involving Black populations. They also provide recommendations for researchers to ethically engage Black populations in research. ...
Biotechnologists developed an effective technology for nutrient biocapture from wastewater
2021-02-19
Biotechnologists from RUDN University in collaboration with Lomonosov MSU and Kurchatov institute made an important contribution to the technology of phosphate and nitrate biocapture from wastewater using Lobosphaera algae fixed on the filters.The biomass obtained in the course of this process can be used as a fertilizer. The results of the study were published in the Journal of Water Process Engineering.
Phosphates and nitrates get to the wastewater together with industrial and household waste, especially detergents. Both substances are parts of phosphorus and nitrogen chemical cycles. However, these cycles are disturbed by human activity, as the growing amounts of phosphates and nitrates cannot be processed by water ecosystems. As a result, these substances turn from useful nutrients ...
LSU Health study finds psychosocial factors may drive peritoneal dialysis patient dropout
2021-02-19
New Orleans, LA - A retrospective study conducted by LSU Health New Orleans reports that contrary to previous research, most patients who drop out of peritoneal dialysis may do so for psychosocial reasons. The findings are published in The American Journal of the Medical Sciences, available here. The paper inspired a companion editorial, available here.
The research team evaluated the reasons that 27 of the 83 patients enrolled in the peritoneal dialysis program withdrew between 2016 and 2018. Twenty-four or 86% were African American. They found that psychosocial factors, including mental health illness such as anxiety and depression, loss of support networks, or inability to tolerate ...
Study reveals energy sources supporting coral reef predators
2021-02-19
Since Charles Darwin's day, the abundance of life on coral reefs has been puzzling, given that most oceanic surface waters in the tropics are low in nutrients and unproductive.
But now research, led by Newcastle University and published in in the journal Science Advances, has confirmed that the food web of a coral reef in the Maldives relies heavily on what comes in from the open ocean.
The team found that these offshore resources contribute to more than 70% of reef predator diets, the rest being derived from reef associated sources.
Led by Dr Christina Skinner, now based at the Hong Kong University of Science and Technology, the researchers included collaborators from Woods Hole Oceanographic Institution (USA), Banyan Tree Marine ...
Sounding rocket CLASP2 elucidates solar magnetic field
2021-02-19
Cooperative operations between a solar observation satellite and a sounding-rocket telescope have measured the magnetic field strength in the photosphere and chromosphere above an active solar plage region. This is the first time that the magnetic field in the chromosphere has been charted all the way up to its top. This finding brings us closer to understanding how energy is transferred between layers of the Sun.
Despite being the brightest object in the sky, the Sun still holds many mysteries for astronomers. It is generally believed that magnetic fields play an important role in heating the solar corona, but the details of the process are still unclear. To solve this mystery it is important to understand the magnetic field in the chromosphere, which is sandwiched ...
New technology enables predictive design of engineered human cells
2021-02-19
Northwestern University synthetic biologist Joshua Leonard used to build devices when he was a child using electronic kits. Now he and his team have developed a design-driven process that uses parts from a very different kind of toolkit to build complex genetic circuits for cellular engineering.
One of the most exciting frontiers in medicine is the use of living cells as therapies. Using this approach to treat cancer, for example, many patients have been cured of previously untreatable disease. These advances employ the approaches of synthetic biology, a growing ...
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