- PhysOrg
- 22/4/30 17:20
An international group of astronomers has uncovered new clues about a mysterious stellar explosion that was discovered eight years ago, but is continuing to evolve even as scientists watch.
An international group of astronomers has uncovered new clues about a mysterious stellar explosion that was discovered eight years ago, but is continuing to evolve even as scientists watch.
Sometimes there are pretty valid reasons for leaving right after sex.
Fifty years after his Apollo 16 mission to the moon, retired NASA astronaut Charlie Duke says he's ready for the U.S. to get back to lunar exploration.
Thousands of firefighters battled destructive wildfires in the Southwest as more residents prepared to evacuate Friday into the weekend in northern New Mexico where strong winds and dangerously dry conditions have made the blazes hard to contain.
Protected areas—such as nature reserves, national parks, and wilderness areas—are essential to conserving biodiversity. New research published in Environmental Research Letters provides insights for developing climate-smart conservation strategies. The study looked at the global network of protected areas, evaluated potential for shifts in where plants and animals occur due to climate...
FRIDAY 29. APRIL 2022
A Colorado prison inmate has become the first person in the U.S. to test positive for bird flu in a recent outbreak that has led to the deaths of millions of chickens and turkeys, but federal officials say they still see little threat to the general public.
With the growing severity of marine heatwaves, mass coral bleaching and mortality have become widespread. A new study led by researchers at Florida Tech recommends multinational networks of protected reefs as the best chance corals have to persist through climate change.
Scientists at Scripps Research have invented a way to image, across different tissues and with higher precision than ever before, where drugs bind to their targets in the body. The new method could become a routine tool in drug development.
Biologists at the U.S. Department of Energy's Brookhaven National Laboratory and their collaborators have discovered an aberrant protein that's deadly to bacteria. In a paper just published in the journal PLOS ONE, the scientists describe how this erroneously built protein mimics the action of aminoglycosides, a class of antibiotics. The newly discovered protein could serve as a model to help...
Chirality, while not a rarity in the world of molecules, is nevertheless a special property. If a molecule is chiral (from the Greek word chiros = hand), it exists in two mirrored versions that are very similar but not identical—like two hands that can be folded together, but cannot be placed congruently on top of each other. This is why we speak of right-handed and left-handed molecules, or...
Carbon monoxide is an odorless and colorless gas made when fossil fuels burn incompletely. It's also a silent killer.
Growing up in a small community has its advantages, but if you want to learn from world experts, you may have better luck in a big city. This is the case in the world of birds as well. Large populations of birds might be better able to maintain complex songs than small populations—all because of access to high-quality tutors.
Based on optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS) technology, a research team led by Prof. Zhang Weijun from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) has recently detected hydroxyl radical (OH) at 2.8 μm wavelength with a distributed feedback diode laser.
Spines on plants are widely distributed across plant families. The defensive role of spines has previously been associated with leaves, young shoots and reproductive organs. However, the different syndromes of spiny plants have barely been explored and people do not yet have a complete synthesis of their function based on their morphological attributes.
University of Manitoba researchers have published a paper that challenges the way we think about airspace. By equipping some migratory birds with a GPS backpack, the biologists provided new and crucial data to a burgeoning idea that argues airspace is a habitat and we need to conserve it, an idea that is gaining support in municipal governments across Canada, including most recently in Winnipeg.
Biomedical polymers have been extensively developed for promising applications in a lot of biomedical fields, such as drug delivery, disease detection/diagnosis, biosensing, regenerative medicine, and disease treatment. For example, polymer-based carriers provide major advances in improving bioavailability and therapeutic outcomes at spatiotemporal drug delivery, greatly benefiting the treatment...
Recently, in a paper published in Physical Review Applied, a research team from the Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences (CAS) studied the interfacial control of transport properties of perovskite oxide ferroelectric tunnel junctions (FTJs) and proposed a new scheme to achieve a giant tunneling electroresistance (TER) in FTJs.
A recent study led by Prof. Zhong-Shuai Wu (Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences (CAS)), and Prof. Hui-Ming Cheng (Institute of Metal Research of CAS) and published in National Science Review examines aqueous MXene planar micro-supercapacitors.
Plants rely on a process called carbon fixation—turning carbon dioxide from the air into carbon-rich biomolecules—for their very existence. That's the whole point of photosynthesis, and a cornerstone of the vast interlocking system that cycles carbon through plants, animals, microbes and the atmosphere to sustain life on Earth.
Magnetic random-access memory (MRAM) technology offers substantial potential towards next-generation universal memory architecture. However, state-of-the-art MRAMs are still fundamentally constrained by a sub-nanosecond speed limitation, which has remained a long-lasting scientific challenge in the spintronics R&D. In this double doctorate project, Luding Wang experimentally demonstrated a...
Climate change marked by global warming is affecting various ecological processes of terrestrial ecosystem.
Thyroid hormone (TH) plays a multifunctional role in metabolism and development in vertebrates. The synthesis and secretion of TH is determined by the hypothalamus-pituitary-thyroid (HPT) axis. The tripeptide thyrotropin-releasing hormone (TRH, pGlu-His-Pro-NH2) is the initial hormone of HPT, synthesized in the hypothalamus and acts on TRH receptor (TRHR). Upon stimulation by TRH, TRHR prompts...
UK and international representatives from civil society and beyond are calling on the UK Government to better support refugees coming from Ukraine, in a report by UCL experts for the Independent Anti-Slavery Commissioner (IASC).
Consumers voiced much more positive views in April, rising 9.8% above March, according to the University of Michigan Surveys of Consumers.
Interactions between primary producers and bacteria impact the physiology of both partners, alter the chemistry of their environment, and shape ecosystem diversity.