3,551 articles frome SEPTEMBER 2022
What caused the holes in SUE the T. rex's jaw? Probably not an infection
SUE the T. rex is one of the most complete, best-preserved Tyrannosaurus rex specimens ever found. That level of preservation helps reveal details about SUE's life. For instance, SUE lived to a ripe old age of about thirty-three, and in those years, suffered their fair share of injuries. SUE's most mysterious ailment might be the holes in their jawbone.
For scientists, Hurricane Ian is posing threats—and opportunities
Forrest Masters, a civil engineer from the University of Florida (UF), spent much of Wednesday hunkered down at the Punta Gorda Airport near Fort Myers, Florida, as 185-kilometer-per-hour winds from Hurricane Ian lashed the building—and nearby instruments collected data.
At the same time, marine ecologist Eric Milbrandt was sitting in a hotel across the state in West Palm...
Achieving stable K-storage performance of carbon sphere-confined antimony via electrolyte regulation
Potassium-ion batteries (PIBs) have been considered one of the most promising alternatives to lithium-ion batteries (LIBs) because of their competitive energy density with significantly low production costs. Moreover, alloy-type materials are expected to be the high-performance anode of PIBs owing to their intrinsic chemical stability and high theoretical specific capacity. Unfortunately, severe...
Targeted reimbursement: A just price for carbon dioxide
"It is crucial that the revenues from CO2 pricing are returned, and in a targeted manner: Distributing them back in shotgun-mode is only the second-best solution," explains Martin Hänsel, an economist at PIK and lead author of a new study, which appeared in the Journal of Environmental Economics and Management.
Drawing data at the nanometer scale
A method to draw data in an area smaller than 10 nanometers has been proposed in a recent study published in Physical Review Letters
Disease outcomes differ by new host species in virus spillover experiments
Why has the SARS-CoV-2 virus ravaged the global human population, but many other animal viruses haven't? Using nematode worms as a model, researchers at Penn State conducted a set of experiments to investigate the factors influencing the disease outcomes of virus spillover events. They found that the species of the host influences whether a virus will take off in a new population. For example,...
Horrible bosses cause 'race to the bottom,' study finds
A new study has found that hostile behaviors from "abusive" bosses can lead to co-workers adopting similar behavior, leading to a toxic atmosphere of insecurity and exhaustion in the workplace.
Study reports first evidence of social relationships between chimpanzees and gorillas
A long-term study led by primatologist Crickette Sanz at Washington University in St. Louis reveals the first evidence of lasting social relationships between chimpanzees and gorillas in the wild.
Single-cell tools give insight into active antibiotic resistome in soils
Soil antimicrobial resistance (AMR) is posing increasing health risks due to possible transmission to humans through direct contact and through the food chain. However, soil AMR studies have relied mostly on environmental DNA that could come from dead/dominant cells and extracellular DNA, leading to potential overestimation of AMR and associated risks because the vast majority of soil microbes are...
The surprising Swiss-army-knife-like functions of a powerful enzyme
Blue-green algae (AKA cyanobacteria) have a superpower which likely helps them be highly successful as invaders of waterways. They have an extraordinary ability to store energy and nitrogen in their cells for times of need. But how exactly they do so remains only partly understood.
Scientists sequence the world's largest pangenome to help unlock genetic mysteries behind finer silk
BGI Genomics, in collaboration with Southwest University, the State Key Laboratory of Silkworm Genome Biology, and other partners, has constructed a high-resolution pangenome dataset representing almost the entire genomic content in a silkworm.
Southern resident orca pod falls to lowest number in 46 years
Only 73 southern resident orcas that live along the coast of Oregon, Washington and British Columbia remain as of July 1, according to the latest census from the Center for Whale Research.
Surface microstructures of lunar soil reveal an intermediate stage in space weathering process
A study conducted by a joint team from Chinese Academy of Sciences used aberration-corrected transmission electron microscopy (TEM), Electron-energy loss spectroscopy (EELS) and scanning transmission electron microscopy (STEM) to examine the microstructures and chemical compositions at nano/atomic scales of 25 soil grains (1-3 μm in size) from lunar sample CE5C0400YJFM00507 (1.5 g).
Layer Hall effect and hidden Berry curvature in antiferromagnetic insulators
Every time a new Hall effect is discovered, a wave of research is inspired. The first experiment on a new type of Hall effect, the layer Hall effect, had been reported by Xu's group at Harvard University. In the layer Hall effect, electrons from the top and bottom layers are deflected in opposite directions and were measured by applying an out-of-plane electric field to break the PT symmetry,...
Shoppers more likely to buy on Pi Day and other 'special' day-themed promotions
Call it "having their 'Pi' and buying too." A new study finds that consumers are more likely to make purchases during promotions tied to a special day, like Pi Day (March 14), than during regular holiday or non-distinctive day promotions.
Particle physics – a brief history of time-wasting? | Letters
Readers respond to an article that argued that the field of physics is too obsessed with discovering new particlesSabine Hossenfelder (No one in physics dares say so, but the race to invent new particles is pointless, 26 September) has missed the point of a big part of particle physics, and indeed fundamental research as a whole. While we’d all like to revolutionise our respective fields by...
Metastable states of floating crystals
A research team led by the GRASP—Group of Research and Applications in Statistical Physics—at the University of Liège (Belgium), demonstrates how to manipulate the mesh, shape and symmetry of floating crystals by wandering, in a controlled way, between their metastable states. This study is published in the journal Scientific Reports.
NASA, USGS Map Minerals to Understand Earth Makeup, Climate Change
Portal origin URL: NASA, USGS Map Minerals to Understand Earth Makeup, Climate ChangePortal origin nid: 483070Published: Friday, September 30, 2022 - 12:05Featured (stick to top of list): noPortal text teaser: NASA and the U.S. Geological Survey (USGS) will map portions of the southwest United States for critical minerals using advanced airborne imaging.Portal...
Researchers reveal new strategy to prevent blood clots without increasing the risk of bleeding
A nanoparticle therapy developed by investigators at University Hospitals (UH) and Case Western Reserve University targets overactive neutrophils, a specific kind of white blood cell, to prevent almost all types of blood clots while causing no increased risk for bleeding. The preclinical findings, published in Science Translational Medicine, may lead to safer ways to care for patients impacted by...
Understanding social dilemmas through games—the development of moral norms encourages selfless behavior
Human decision-making and the interplay of individual and group dynamics is incredibly complex. Unfortunately, our behavior can lead to detrimental phenomena, such as the depletion of common sources.
Researchers propose and demonstrate an optical black hole cavity based on transformation optics
Whispering-gallery-mode (WGM) cavities represent an intriguing platform for intensely enhancing light-matter interaction. It lays the foundations for ultra-low threshold lasers, ultra-sensitive sensing, nonlinear optics and quantum photonics. The conventional WGM cavity is composed of homogeneous materials with a constant refractive index both in the core and cladding. The light field is confined...
Lab-grown pigments and food by-products: The future of natural textile dyes
As the environmental impact of the fashion and textile industries becomes clearer, the demand and need for sustainable alternatives is growing. One international research group aims to replace toxic synthetic dyes with natural alternatives, ranging from plants to microbes to food waste.
Molecular chaperones caught in flagrante
- ScienceDaily
- 22/9/30 17:26
For an adequate immune response, it is essential that T lymphocytes recognize infected or degenerated cells. They do so by means of antigenic peptides, which these cells present with the help of specialized surface molecules (MHC I molecules). Using X-ray structure analysis, a research team has now been able to show how the MHC I molecules are loaded with peptides and how suitable peptides are...