RUDN University chemists derived molecules that can assemble into complex structures using chlorine and bromine halogen atoms. They bind to each other as "velcro" - chlorine "sticks" to bromine, and vice versa. As a result supramolecules are assembled from individual molecules. The obtained substances will help to create supramolecules with catalytic, luminescent, conducting properties. The study is published in Mendeleev Communications. Supramolecules are the structures made of several molecules. Individual molecules are combined, for example, by self-assembly or without external control. The resulting structure has properties that the molecules did not have individually. That is the way to create new materials, catalysts, molecular machines for ...

For the first time, scientists detected gravitational waves caused by mergers between black holes and neutron stars. Researchers from LIGO, Virgo, and KAGRA detected the two gravitational wave events--from distances of more than 900 million light-years away--within a span of 10 days in January 2020 during the second half of LIGO and Virgo's third observing run. Astrophysical Journal Letters published the results and their implications today: https://iopscience.iop.org/article/10.3847/2041-8213/ac082e. Researchers from Rochester Institute of Technology's Center ...

The LSL60101 compound, a specific ligand of the I2-IR receptors in the brain, could shed light on the development of future strategies against Alzheimer's disease. This is stated in the recent studies by the Research Group on Medicinal Chemistry and Pharmacology of Neurodegenerative Diseases of the University of Barcelona, published in the journals European Journal of Medicinal Chemistry and British Journal Pharmacology. In studies carried out with mice, LSL60101 has improved the cognitive deficit and the biomarkers related to the disease in these animal models. These studies result from the collaboration of the research teams led by professors Carmen Escolano, from the Faculty of Pharmacy and Food Sciences and the Institute of Biomedicine of the UB ...

Preschool children are sensitive to the gap between how much they know and how much there is to learn, according to a Rutgers University-New Brunswick study. The research, published in the journal END ...

Under a concrete drainage culvert at the edge of a town in Botswana, a troop of banded mongoose is getting ready to leave its den. Moving from shade into light, the cat-sized animals scan the area for signs of danger and for opportunities to find something to eat in an increasingly crowded neighborhood. Unbeknownst to them, the genetics of this troop's members -- and others like them -- are providing researchers in the College of Natural Resources and Environment with new understandings of how and why animal behavior changes in proximity to human development and how that change can impact infectious disease spread. The researchers used genetic tools to identify changes in movement behavior among mongooses ...

An immunotherapy based on supercharging the immune system's natural killer cells has been effective in treating patients with recurrent leukemia and other difficult to treat blood cancers. Now, researchers at Washington University School of Medicine in St. Louis have shown in preclinical studies conducted in mice and human cells that this type of cell-based immunotherapy also could be effective against solid tumors, starting with melanoma, a type of skin cancer that can be deadly if not caught early. The study is published June 29 in Clinical Cancer Research, ...

[BRIDGEWATER, NJ; June 29, 2021] The American Association of Feline Practitioners (AAFP) has released the updated 2021 AAFP Feline Senior Care Guidelines to be published in the July issue of the Journal of Feline Medicine and Surgery. This update provides emerging advances in feline medicine with respect to the aging cat. The Task Force of experts provides a thorough current review in feline medicine that emphasizes the individual senior patient. As defined in the 2021 AAHA/AAFP Feline Life Stage Guidelines, cats over 10 years of age are considered to be 'senior.' Understanding the changing needs of each individual senior cat is critical for both veterinary professionals and cat owners. "Veterinary professionals are encouraged to use the 2021 ...

Osaka, Japan - A team of scientists led by the Department of Applied Physics at Osaka University, the Department of Physics and Electronics at Osaka Prefecture University, and the Department of Materials Chemistry at Nagoya University used photoinduced force microscopy to map out the forces acting on quantum dots in three dimensions. By eliminating sources of noise, the team was able to achieve subnanometer precision for the first time ever, which may lead to new advances in photocatalysts and optical tweezers. Force fields are not the invisible barriers of science fiction but are a set of vectors indicating the magnitude and direction of forces acting in a region ...

Overview The research team of Professor Toshihiko Eki of the Department of Applied Chemistry and Life Science (and Research Center for Agrotechnology and Biotechnology), Toyohashi University of Technology used a next-generation sequencer to develop a highly efficient method to analyze soil nematodes by using the 18S ribosomal RNA gene regions as DNA barcodes. They successfully used this method to reveal characteristics of nematode communities that inhabit fields, copses, and home gardens. In the future, the target will be expanded to cover all soil-dwelling organisms in agricultural soils, etc., to allow investigations into a soil's environment and bio-diversity. This is expected to contribute to advanced agriculture. Details Similar to when the ...

Receiving a simple thank you, spending time with peers and further developing their expertise, are all factors that make veterinarians feel good at work, according to a new study by researchers at the University of Adelaide. In the study published by Vet Record, researchers investigated the positive side of veterinary work and specifically what brings vets pleasure in their job. Lead author Madeleine Clise, a psychologist and Adjunct Lecturer at the University of Adelaide's School of Psychology says: "At a time in Australia when there are national shortages of vets, particularly in regional areas, and increased publicity about the ...

Prolonged exposure to antibiotics leads to the gain of bacteria's ability to defeat the drugs designed to fight them. Thus, if such antibiotic-resistant bacteria cause the infection, the only chance to use a specialized virus called phage infecting specific bacteria species. It is a powerful weapon against deadly diseases. At the same time, the effective treatment depends on factors that would not be suspected for years to impact the successful therapy. Recently, researchers from the Institute of Physical Chemistry, Polish Academy of Sciences led by dr. Jan Paczesny and Professor ...

Tsukuba, Japan - Depression is a worldwide problem, with serious consequences for individual health and the economy, and rapid and effective screening tools are thus urgently needed to counteract its increasing prevalence. Now, researchers from Japan have found that artificial intelligence (AI) can be used to detect signs of depression. In a study published this month in BMJ Open, researchers from University of Tsukuba have revealed that an AI system using machine learning could predict psychological distress among workers, which is a risk factor for depression. ...

Atomic nuclei contain enormous energy that can be extracted through their fission mechanism, for example, as a result of the radioactive decay of uranium or plutonium nuclei. Likewise, a quantum of light of several electron-volts (2.4 eV in a laser pointer with a green beam) has colossal energy. If all photons were absorbed by matter, then its temperature could reach several thousand degrees. However, in practice this does not happen. The reason is the weak light-matter interaction due to the fact that the wavelength of light (500 nm) is a thousand times larger than the size of an emitting / absorbing atom (0.5 nm). It is this physical mechanism that prevents the destruction of matter when illuminated. The efficiency of light absorption increases ...

Researchers have identified a new treatment candidate that appears to not only halt neurodegenerative symptoms in mouse models of dementia and Alzheimer's disease, but also reverse the effects of the disorders. The team, based at Tohoku University, published their results on June 8 in the International Journal of Molecular Sciences. The treatment candidate has been declared safe by Japan's governing board, and the researchers plan to begin clinical trials in humans in the next year. "There are currently no disease-modifying therapeutics for neurodegenerative disorders such as Alzheimer's disease, Lewy body dementia, Huntington ...

As our society and transportation systems become increasingly electrified, scientists worldwide are seeking more efficient and higher capacity storage systems. Researchers at KAUST have made an important contribution by modifying lithium-sulfur (Li-S) batteries to suppress a problem known as polysulfide shuttling. "The bottleneck in the utilization of renewable energy, especially in transportation, is the need for high-density batteries," says Eman Alhajji, Ph.D. student and first author of the research paper. Li-S batteries have several potential advantages over ...

Bobtail and bottletail squids are tiny marine invertebrates that are found throughout the world's oceans and are useful model animals for research There are 68 recognized species of bobtail squid and five recognized species of bottletail squid, but the timing of their divergence from one another is still relatively unknown Researchers at OIST, Hiroshima University and the National University of Ireland Galway, collected 32 species of bobtail and bottletail squids They looked at the genetic variations across the entire genomes of these species to estimate their evolutionary relationships The results showed that the divergence of these species aligned with major ...

Tel Aviv University's groundbreaking technology may revolutionize the treatment of cancer and a wide range of diseases and medical conditions. In the framework of this study, the researchers were able to create a new method of transporting RNA-based drugs to a subpopulation of immune cells involved in the inflammation process, and target the disease-inflamed cell without causing damage to other cells. The study was led by Prof. Dan Peer, a global pioneer in the development of RNA-based therapeutic delivery. He is Tel Aviv University's Vice President for Research and Development, head of the Center for Translational Medicine and a member of both the Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty ...

What if electricity could be squeezed out of something? It turns out some materials have this property. Piezoelectricity is the electric charge that accumulates in certain solids when mechanical stress is applied on them. Piezoelectric materials, like bismuth ferrite thin films, when grown on a single lanthanum aluminate substrate give rise to highly strained epitaxial thin films that exhibit excellent electromechanical and ferroelectric properties. In bismuth ferrite thin films "doped" or polluted with lanthanum (BLFOs), piezoelectricity is attributed to the presence of "mixed-phase structures" with stripe patterns. The formation of stripe patterns and controlling the mixed-phase structures of BLFO have been the ...

A FLEET theoretical study out this week has found a 'smoking gun' in the long search for the topological magnetic monopole referred to as the END ...

HARWELL, UK (29 June 2021) Researchers working on the Faraday Institution project on the recycling of lithium-ion batteries (ReLiB) at the Universities of Leicester and Birmingham have solved a critical challenge in the recovery of materials used in electric vehicle batteries at the end of their life, enabling their re-use in the manufacture of new batteries. The new method, which uses ultrasonic waves to separate out valuable material from the electrodes, is 100 times quicker, greener and leads to a higher purity of recovered materials relative to current separation methods. The research has been published in Green Chemistry and the team have applied for a patent for the technique. To ...

Patients with mild Covid-19 infections experience a significantly increased longer lasting reduced sense of taste and smell. This is also the case for long-term shortness of breath, although relatively few people are affected. And women and the elderly are particularly affected. This is shown by new research findings from Aarhus University Aarhus University Hospital and Regional Hospital West Jutland The last 14 months have taught us that there are different symptoms and outcomes of Covid-19. However, the vast majority of people who fall ill with Covid-19 experience mild symptoms and get over ...

Attention Deficit Hyperactivity Disorder (ADHD) affects about 7% of children, with a two out of three chance of persisting into adulthood. This neurodevelopmental disorder is characterised by concentration difficulties, increased distractibility, impulsivity and hyperactivity. Today, ADHD is treated with pharmaceutical drugs that may have unwanted side effects. This is why scientists from the University of Geneva (UNIGE) and the University Hospitals of Geneva (HUG), Switzerland, explored a new technique called 'neurofeedback', which enables ADHD patients to train their attention, based on instant feedback from the level of their brain activity. The team of neuroscientists found that not only did the training have a positive effect on patients' concentration abilities, but also that the ...

An international team of researchers has identified a novel mechanism in barley plants, which could help crop growers achieve high yields as temperatures rise. With grain production highly sensitive to changing environmental conditions, rising temperatures are known to reduce the number of seeds that can be produced on each plant. One solution is to increase the number of flowers or branches on each 'spike', which is the reproductive structure from which grain is harvested. In a study published in Nature Plants, research led by Professor Dabing Zhang from the University of Adelaide's Waite Research Institute and Shanghai Jiao Tong University's Joint Lab for Plant Science and Breeding, explored the possibility of increasing seed production through ...

Tsukuba, Japan - As far back as the 1930s, inventors have commercialized fuel cells as a versatile source of power. Now, researchers from Japan have highlighted the impressive chemistry of an essential component of an upcoming fuel cell technology. In a study recently published in The Journal of Physical Chemistry Letters, researchers from the University of Tsukuba have revealed successive proton transport--energy transfer--in an advanced carbon-based crystal for future fuel cells, and the chemistry that underpins this phenomenon. Such crystals are exciting as solid electrolytes--energy transfer media--in upcoming fuel cell technologies. Solid electrolytes have advantages, such as high power efficiency and long-term ...

Researchers have revealed that praying mantis (mantids) infected with parasitic hairworms are attracted to horizontally polarized light that is strongly reflected off the surface of water, which causes them to enter the water. In a world-first, these research results demonstrate that parasites can manipulate the host's specific light perception system to their advantage, causing the host to behave in an abnormal manner. This discovery was made by an international research group consisting of Graduate student OBAYASHI Nasono, Associate Professor SAKURA Midori and Associate Professor SATO Takuya of Kobe University's Graduate School of Science, Associate Professor IWATANI Yasushi (Faculty of Science and Technology, Hirosaki University), ...