A minimally invasive retinal reattachment procedure that can be done in an ophthalmologist's office leads to better long-term integrity and structure of the retina's photoreceptors - cells that allow us to see - compared with more invasive operating room procedures, according to new research published April 22. The study, published in JAMA Ophthalmology and led by researchers at St. Michael's Hospital of Unity Health Toronto, contributes to a growing body of evidence pointing towards pneumatic retinopexy (PnR) as the better first-line retinal reattachment technique to achieve the best visual outcomes. Retinal detachment is the most common surgical ocular emergency, progressing to loss of vision within hours ...

Chestnut Hill, Mass. (4/22/2021) - Confirming anecdotal evidence that the spread of the coronavirus has strained Americans' mental health, Boston College researchers found reports of anxiety increased to 50 percent and depression to 44 percent by November, 2020 - rates six times higher than 2019 - according to a new report in the journal Translational Behavioral Medicine. Among U.S. adults aged 18-29, the impact on mental health was even more severe. Rates of anxiety and depression increased to 65 percent and 61 percent, respectively, of the respondents in that age group, according to the report. Use of prescription medication, counseling services, and unmet need for mental health services also rose significantly, according to the co-authors of the new study, Boston ...

As the COVID-19 pandemic has progressed, it has become clear that many survivors -- even those who had mild cases -- continue to manage a variety of health problems long after the initial infection should have resolved. In what is believed to be the largest comprehensive study of long COVID-19 to date, researchers at Washington University School of Medicine in St. Louis showed that COVID-19 survivors -- including those not sick enough to be hospitalized -- have an increased risk of death in the six months following diagnosis with the virus. The researchers also have catalogued the numerous diseases associated ...

Skoltech scientists in collaboration with researchers from the University of Arizona and the Los Alamos National Laboratory have developed an approach that allows power grids to return to stability fast after demand response perturbation. Their research at the crossroads of demand response, smart grids, and power grid control was published in the journal Applied Energy. Power grids are complex systems that manage the generation, transmission and distribution of electrical power to consumers, also called loads. As it is not possible to store electrical energy along the transmission lines, grid operators must ensure, ideally at all times, the balance between production and consumption of electrical energy, ...

A test which uses artificial intelligence (AI) to measure proteins present in some patients with advanced bowel cancer could hold the key to more targeted treatment, according to research published today. A team at the University of Leeds collaborated with researchers at Roche Diagnostics to develop the technique, which will help doctors and patients to decide on the best treatment options. They used samples from a previous trial funded by Cancer Research UK to look at the levels of two proteins, known as AREG and EREG, which are produced by some colorectal cancers. Algorithms driven by AI enabled the researchers to show that patients with higher levels of these proteins received significant benefit from a treatment which inhibits a different protein involved ...

Key takeaways Tourniquet use has been consistently increasing in Los Angeles County since 2015 and is significantly associated with improved patient survival. Tourniquet use is safe and does not lead to increased risk of amputation with proper surgical care after arriving at the hospital. Findings are specific to Los Angeles County, where patients who had a tourniquet placed were able to be transported quickly to a trauma center for further life-saving care. CHICAGO (April 22, 2021): Uncontrolled bleeding continues to be one of the most common causes of preventable ...

Insect decline is one of the greatest challenges facing our society. As a result of the destruction of many natural habitats, bees, bumblebees, butterflies, beetles and the like find less and less food. As a consequence, they are barely able to fulfil their role as pollinators of wild and cultivated plants. This trend is increasingly noticeable in agricultural regions in particular. Researchers at the University of Münster have now taken a more detailed look at how the choice of seeds in restoration measures - i.e. the restoration of natural habitats at degraded land - affects how insects benefit from these measures. Here, not only the plant ...

A phenomenon of "photoexpansion" in hard plastic films with a high glass transition temperature in the dry state was established, which was essentially different from very soft actuators, such as elastomers or gels. The photoexpanding hard actuators were expected to apply in the wide fields because they do not contain vaporable matters such as solvents and were much more thermoresistant than conventional ones. Ishikawa, April 22, 2021 - Polymers that exhibit their functions by light have been studied for a few decades because they enable device miniaturization, energy saving, and precise signal control. Polymers based on azobenzene, diarylethene, etc. are the pioneers, ...

Patients with chronic kidney dysfunction frequently develop thickening of the heart muscle, so-called left ventricular hypertrophy. This is particularly pronounced in patients who are in the late stage of renal dysfunction, that is to say those requiring renal replacement therapy such as haemodialysis. The danger of this cardiac hypertrophy lies in the considerable associated increase in risk of acute cardiovascular disease, such as sudden cardiac death, for example. Haemodialysis patients have a number of risk factors for developing this form of cardiac hypertrophy. One of those is elevated levels of the protein Fibroblast Growth Factor 23 (FGF23), ...

- Recent discoveries focused on manipulation of atomically-thin 2D materials, while the new breakthrough can be used to stack technologically-relevant 3D materials at a twist angle - Method allows continuous, systematic control of optical emission intensity and energy, and can produce ultraviolet emissions at room temperature for bulk systems - The discovery can be significant for applications in medicine, environmental or information technologies. Singapore, 22 April 2021 - Researchers from the Low Energy Electronic Systems (LEES) Interdisciplinary Research ...

The citric acid cycle is an important metabolic pathway that enables living organisms to generate energy by degrading organic compounds into carbon dioxide (CO?). The first step in the cycle is usually performed by the enzyme citrate synthase, which builds citrate. But, in the absence of oxygen (under anaerobic conditions), some bacteria can perform the reverse cycle: They can build up biomass from CO?. In this so-called reversed citric acid cycle, citrate synthase is replaced by ATP-citrate lyase, which consumes cells' universal energy carrier ATP (adenosine triphosphate) to cleave citrate instead of forming it. However, a few years ago, a research team led by Ivan Berg (University of Münster) and Wolfgang Eisenreich (Technical University of Munich) discovered that instead of ...

A new study from the University of Surrey has found that among people aged 55 to 75 more frequent use of the internet was beneficial for mental health and quality of life under lockdown. Those who used the internet more, particularly for staying in touch with friends and family, were at lower risk of depression and reported a higher quality of life. Loneliness and social isolation have been major problems for many under lockdown, and for older people in particular. Loneliness raises risk of depression and other negative health outcomes. In a paper published in the journal Healthcare, researchers from Surrey investigated ...

Australia's unique and highly endemic flora and fauna are threatened by rapid losses in biodiversity and ecosystem health, caused by human influence and environmental challenges. To monitor and respond to these trends, scientists and policy-makers need reliable data. Biodiversity researchers and managers often don't have the necessary information, or access to it, to tackle some of the greatest environmental challenges facing society, such as biodiversity loss or climate change. Data can be a powerful tool for the development of science and decision-making, which is where the END ...

Rain is a common phenomenon on Earth. There is a similar phenomenon on the Sun, called coronal rain. It is related to the coronal heating and magnetic field, and plays a fundamental role in the mass cycle between the hot, tenuous corona and the cool, dense chromosphere. Coronal rain usually takes place in post-flare loops and the non-flaring active region coronal loops. It is generally classified into two categories: flare-driven and quiescent coronal rain, depending on its relation to the flare. Both kinds of coronal rain form along structures that are magnetically ...

Understanding whether Mars was once able to support life has been a major driving force for Mars research over the past 50 years. To decipher the planet's ancient climate and habitability, researchers look to the rock record - a physical record of ancient surface processes which reflect the environment and the prevailing climate at the time the rocks were deposited. In a new paper published in JGR: Planets, researchers on the NASA-JPL Mars Science Laboratory mission used the Curiosity rover to add another piece to the puzzle of Mars' ancient past by investigating a unit of rocks within Gale crater. They found evidence of an ancient dune field preserved as a layer of rocks in Gale crater, which overlies rock layers that were deposited in a large lake. The rock ...

Thursday, 22 April 2021 - New research has found that childhood adversity, such as parental conflict, death of a close family member or serious injury, before the age of nine was associated with mental health problems in late adolescence. However, the research also shows that improving the relationship between parents and children could prevent subsequent mental health problems, even in children who have experienced severe adversities. The research also indicated that improving a child's self-esteem and increasing their levels of physical activity can help to reduce the risk of developing mental health problems. The study, led by researchers from RCSI University of Medicine and Health Sciences, is recently published in END ...

NUST MISIS scientists together with Indian colleagues from Jain University and Sri Dharmasthala Manjunatheshwara College presented innovative membranes for the complete removal of heavy metals from industrial wastewater. The special nanostructure of zinc-modified aluminum oxide made it possible to remove arsenic and lead from water with an efficiency of 87% and 98%, respectively. The results of the work were published in the Chemosphere journal. Industrialization is the main cause of water pollution due to the ingress of industrial waste. In particular, heavy metals -- arsenic, lead and cadmium -- can cause metabolic disorders and multiple critical effects to the body, ...

Two-dimensional (2D) materials with a single-layer thickness retaining magnetic order in atomically thin limit began to increase their scientific and technological significance after the successful synthesis of graphene and later investigations of van der Waals materials. CrBr3 has been known since the 60s as a van der Waals ferromagnet. Hansen, Tsubokawa, and Dillon have pioneered the work on magnetism in this compound. However, it has only recently been established that CrBr3 exhibits ferromagnetism when exfoliating to several layers and monolayers while ...

The design, interpretation, and enforcement of county and municipal laws significantly affect local public health. But accessing those laws can be difficult. A study by Indiana University researchers found that unlike Indiana state laws, which are collected, catalogued by topic, and kept regularly updated in centralized, publicly available electronic databases, laws in about half of all Indiana counties were not online, or if they were online, they weren't necessarily up to date. This means that in Indiana, there is no comprehensive, up-to-date central source that can be used to study how different local governments respond to similar health-related ...

A small proportion of women who receive anti-estrogen treatment after breast cancer surgery have worse outcomes. This is associated with mutations in the estrogen receptor gene, according to a study from Lund University now published in JNCI Cancer Spectrum. "If our results are confirmed in further studies, it would be relevant to screen for these resistance mutations already at diagnosis, and then consider other treatment options that could work better for patients with mutated tumors," says Lao Saal, who led the study, the largest of its kind on resistance mutations in the estrogen receptor in primary breast cancer. Breast cancer is the most common ...

Inspired by nature, the researchers developing a new load-bearing material Engineers have developed a new material that mimics human cartilage - the body's shock absorbing and lubrication system, and it could herald the development of a new generation of lightweight bearings. Cartilage is a soft fibrous tissue found around joints which provides protection from the compressive loading generated by walking, running or lifting. It also provides a protective, lubricating layer allowing bones to pass over one another in a frictionless way. For years, scientists have been trying to create a synthetic material with the properties of cartilage. ...

Several weeks following the publication of the large real-world Covid-19 vaccine effectiveness study by the Clalit Research Institute in Collaboration with Harvard University in the New England Journal of Medicine (NEJM), additional results focusing on vaccine effectiveness in specific sub-populations have now been published. While the original publication demonstrated the effectiveness of the Pfizer-BioNTech mRNA vaccine in the general population, outstanding questions remained regarding vaccine effectiveness in specific sub-populations of interest, including the elderly, multi-morbid ...

An international team led by a Skoltech researcher has developed a method of fabrication for biodegradable polymer microcapsules, made more efficient by turning to an unusual source of inspiration - traditional Russian dumpling, or pelmeni, making. The two papers were published in Materials and Design and ACS Applied Materials and Interfaces. Micro-sized capsules, which can be tailored to a variety of purposes, have proven very useful in targeted delivery of drugs and other bioactive compounds. To ensure optimal functioning, these have to be designed and manufactured with precision and in particular shapes, as non-spherical capsules turned out to be more efficient and effective than spherical ones. "Non-spherical capsules could have side directed release ...

Students who have been exposed to interpersonal trauma —  physical assault, sexual assault or unwanted sexual experiences — prior to college are more likely to engage in risky alcohol use. But romantic relationships mitigate these effects of trauma on a student’s drinking behavior, according to a new study led by Virginia Commonwealth University researchers. The study investigates whether romantic relationships might play a role in mitigating or exacerbating the effects of trauma exposure on alcohol use among college students. It found that students who experienced interpersonal trauma during college consumed more alcohol than those without interpersonal trauma exposure, and that their drinking was more pronounced for those in a relationship with a partner with ...

A good night's sleep is essential for a healthy body and mind, for when we sleep is when the body resets, repairs, and refreshes itself. A lot of people, however, have trouble falling or staying asleep, a condition known as insomnia that affects up to 30% of the population. It is usually caused by an underlying psychiatric or clinical condition and is associated with a poorer quality of life. Recent genome wide analyses have revealed that a gene MEIS1 is linked with insomnia. Interestingly, this gene has also been implicated in restless leg syndrome and iron-deficiency anemia (IDA), the latter ...