Ethical considerations for closing projects "well" in the context of withdrawal of USAID are explored by researchers and members of an affected Philippines disaster-preparedness project. #### Article URL: https://plos.io/45tYSNr Article Title: Thinking through abrupt closure in humanitarian assistance: Key ethical considerations in seemingly impossible conditions Author Countries: Canada, Philippines, United States Funding: This work was supported by the Social Sciences and Research Council of Canada (4330-220-00743 to LE; 4330-220-00743 to IMB; ...

Embargoed: Not for Release Until 2:00 pm U.S. Eastern Time Wednesday, 04 June 2025. Even in the chaotic swarms where they reproduce, male mosquitoes possess a remarkable ability to pick up on the faint sound of a potential mate. A new study from Nagoya University in Japan suggests that males do this by being tuned into a broader range of sounds than females. The findings of this study offer fresh insight into the complex mating behavior of mosquitoes and why catching them in traps in the wild remains such a challenge. Sound-based traps that mimic the wingbeat of female mosquitoes have long been used in population ...

Since their discovery, the historically and biblically hugely important Dead Sea Scrolls have transformed our understanding of Jewish and Christian origins. However, while the general date of the scrolls is from the third century BCE until the second century CE, individual manuscripts thus far could not be securely dated. Now, by combining radiocarbon dating, palaeography, and artificial intelligence, an international team of researchers led by the University of Groningen has developed a date-prediction model, called Enoch, that provides much more accurate date estimates for individual manuscripts on empirical grounds. Using this ...

New research from scientists at Trinity College Dublin strongly implies that heatwaves have a major influence on the spread of many diseases – and that many existing predictive models have overlooked this complexity. Specifically, the scientists have discovered that differences in heatwaves – such as how much hotter they are than normal temperatures, and how long they last – can increase disease burden by up to 13 times in a commonly used experimental animal model. Their discovery and its implications come at an important time, with global climate change and related extreme weather events continuing to impact many in various ways (temperatures approached ...

Astronomers from the University of Hawaiʻi’s Institute for Astronomy (IfA) have discovered the most energetic cosmic explosions yet discovered, naming the new class of events “extreme nuclear transients” (ENTs). These extraordinary phenomena occur when massive stars—at least three times heavier than our Sun—are torn apart after wandering too close to a supermassive black hole. Their disruption releases vast amounts of energy visible across enormous distances. The team's findings were recently detailed in the journal Science Advances. "We’ve observed stars getting ripped ...

Boise State University researchers have developed a new technique and platform to communicate with cells and help drive them towards cartilage formation. Their work leverages a 3-dimensional biocompatible form of carbon known as graphene foam and is featured on a cover for the American Chemical Society’s Applied Materials and Interfaces - - an interdisciplinary journal for chemists, engineers, physicists and biologists to report on how newly discovered materials and interfacial processes can be leveraged for a wide ...

WASHINGTON, D.C. — Researchers from the U.S. Naval Research Laboratory (NRL) were part of a global effort to track newly discovered unusual bursts of radio emission from an object within the Milky Way galaxy. Information from telescopes in Australia, India, South Africa, and the United States were all used to help identify the object. In a paper published to the journal Nature on May 28, the international team announced the discovery of the new object, known as ASKAP J1832-091. This new object emits pulses of radio waves and X-rays lasting two minutes and recurring every 44 minutes. Called ...

CHICAGO (June 4, 2025) — A new study published in The Annals of Thoracic Surgery, a journal from The Society of Thoracic Surgeons, finds that Medicare patients with atrial fibrillation (AF) who undergo surgical ablation during isolated coronary artery bypass grafting (CABG) live longer than those who do not, offering compelling support for clinical guidelines that recommend this procedure but are too often not followed in practice. Researchers examined Medicare claims data from more than 87,000 patients with preexisting AF who underwent CABG ...

If data used to train artificial intelligence models for medical applications, such as hospitals across the Greater Toronto Area, differs from the real-world data, it could lead to patient harm. A new study out today from York University found proactive, continual and transfer learning strategies for AI models to be key in mitigating data shifts and subsequent harms. To determine the effect of data shifts, the team built and evaluated an early warning system to predict the risk of in-hospital patient mortality and enhance the ...

On May 26, the Institut national de la recherche scientifique (INRS)  welcomed a European delegation from the Extreme Light Infrastructure (ELI), marking a significant milestone in strengthening scientific ties between Canada and Europe in the field of high-intensity laser science. The visit was part of a cross-Canada tour organized in partnership with the Hungarian and Czech  Embassies, host countries of the ELI facilities.  At the heart of this meeting was a shared commitment to advancing ultrafast laser science and training the next generation of highly skilled researchers. INRS, internationally recognized for its work ...

A team of chemists at the University of Cambridge has developed a powerful new method for adding single carbon atoms to molecules more easily, offering a simple one-step approach that could accelerate drug discovery and the design of complex chemical products. The research, recently published in the journal Nature under the title One-carbon homologation of alkenes, unveils a breakthrough method for extending molecular chains—one carbon atom at a time. This technique targets alkenes, a common class of molecules characterised by a double bond between two carbon atoms. Alkenes are found in a wide range of everyday ...

Researchers at Colorado State University have developed a tool that can be used to switch a plant’s key genetic traits on or off at will. The breakthrough was recently published in ACS Synthetic Biology and represents the first time that a synthetic genetic “toggle switch” has been used in a full-grown plant.  Synthetic biologists design and build new segments of DNA that can then be inserted into living organisms to work like circuits in electronics or a computer. Just as a switch is used to turn a lightbulb on or off in an electric circuit, the team’s “toggle” turns genes on and ...

WEST LAFAYETTE, Ind. -- One of Earth's most common nanomaterials is facilitating breakthroughs in tackling climate change: clay. In a new study, researchers at Purdue University, in collaboration with experts from Sandia National Laboratories, have potentially uncovered a game-changing method for using clay to capture carbon dioxide (CO2) directly from the air to help mitigate climate change. Their work, which earned them a 2024 R&D 100 Award and has a patent application in progress, was recently published in The Journal of Physical Chemistry C. Cliff Johnston, professor of agronomy ...

When treating an ischemic stroke – where a clot is blocking the flow of oxygen to the brain – every minute counts. The more quickly doctors can remove the clot and restore blood flow, the more brain cells will survive, and the more likely patients are to have a good outcome. But current technologies only successfully remove clots on the first try about 50% of the time, and in about 15% of cases, they fail completely. Researchers at Stanford Engineering have developed a new technique called the milli-spinner thrombectomy that could significantly improve success rates in treating strokes, as well as heart attacks, pulmonary embolisms, and other clot-related diseases. In a paper published June ...

Key Takeaways  Different materials, different outcomes: Time-to-recurrence was longest for long-acting resorbable meshes (166.4 months), followed by synthetic meshes (132.1 months), and shortest for biologic meshes (80 months).  Cost considerations: While long-acting resorbable mesh is projected to perform the best, its cost is approximately 2x that of synthetic mesh.  No national guideline: More guidance is needed for best practices in mesh choice and follow-up schedule.  CHICAGO — Repair of ...

Alzheimer’s disease is the most common cause of dementia and affects more than a tenth of Americans aged 65 and older. The disease has proven difficult to develop new treatments for, and available treatment options are limited. With cases in the U.S. projected to more than double by 2050, more therapies are needed to improve patients’ quality of life and reduce the burden on the health care system and family caregivers.   Scientists at Sanford Burnham Prebys and elsewhere have recently reported real-world links in medical records associating common HIV drugs with a reduced incidence of Alzheimer’s disease. The ...

June 4, 2025 — The most popular TikTok videos related to inflammatory bowel disease (IBD) have millions of views – but very low scores for quality of medical information, reports a study in the May/June issue of Gastroenterology Nursing, Official Journal of the Society of Gastroenterology Nurses and Associates. The journal is published in the Lippincott portfolio by Wolters Kluwer. "Social media platforms such as TikTok have the potential to reach a wide audience of people living with IBD, particularly young adults," comments lead author Samantha Winders, ...

Hydrogen has the potential to be a climate-friendly fuel since it doesn’t release carbon dioxide when used as an energy source. Currently, however, most methods for producing hydrogen involve fossil fuels, making hydrogen less of a “green” fuel over its entire life cycle.  A new process developed by MIT engineers could significantly shrink the carbon footprint associated with making hydrogen.  Last year, the team reported that they could produce hydrogen gas by combining seawater, recycled soda cans, and caffeine. The question then was whether the benchtop process could be applied at an industrial scale, and at ...

Pancreatic cancer is one of the deadliest forms of cancer, killing 87% of patients within five years. Previous studies have shown that obesity can increase pancreatic cancer risk by around 50%. In a new study from the University of California, Davis, researchers showed evidence that switching from a high-fat diet to a low-fat diet slowed pancreatic precancer development in mice, even after weight gain and precancerous changes began. The research was published in the Journal of Nutrition. “This study shows that managing excess body weight is very important,” said corresponding author Gerardo Mackenzie, professor and chair of the UC Davis Department ...

Worcester Polytechnic Institute (WPI) has been awarded $6.3 million for a groundbreaking initiative that could transform additive manufacturing by enabling the rapid production of high-quality components from scrap metal. This innovative approach to additive manufacturing, funded by the Defense Advanced Research Projects Agency (DARPA), aims to ensure that essential components can be produced even in the most resource-limited environments, including where access to traditional supply chains is limited, such as battlefields or remote search-and-rescue locations. The ...

A new study highlights a surprising lens for tracking pollution trends over centuries: preserved plants and animals housed at natural history museums around the world. According to Shane DuBay, a researcher at The University of Texas at Arlington, these specimens contain valuable environmental data that can help scientists reconstruct pollution trends spanning more than 200 years. “We often lack the historical pollution data needed to understand the links between environmental contamination and long-term health effects, such as cancer, asthma, cognitive disorders and premature ...

A research team from the Institute of Modern Physics and Sichuan University has performed a direct measurement of the 12C+12C fusion reaction at a center-of-mass energy of 2.22 MeV using the LEAF accelerator facility. The experiment employed a highly intense 12C2+ beam, a highly oriented pyrolytic graphite (HOPG) target known for its low background, and a ΔE–E telescope combining a Time Projection Chamber and silicon detectors. This setup enabled detection of extremely rare fusion events, with a thick-target yield on the order of 10−17 ...

In the world of microorganisms, microbes compete for turf, spew chemicals at foes, and sometimes exploit the microscopic terrain to gain an edge. In a study published June 4 in the Cell Press journal Biophysical Journal, researchers found that bacteria can speed up by using the fluid pockets shaped by neighboring yeast cells. These microscopic moisture trails allow bacteria to swim farther and spread faster—revealing a new way for microbes to travel through soil, plants, and the human body.  “When studying microbial interactions, research often focuses on the chemical nature of these interactions,” says lead author Divakar Badal of Cornell University. ...

Scientists at the Institute for Basic Science (IBS) have uncovered a non-invasive method to boost the brain’s natural waste drainage system—a discovery that could open new avenues for tackling age-related neurological disorders. In a study published in Nature, researchers from the IBS Center for Vascular Research, led by Director KOH Gou Young, along with senior researchers JIN Hokyung, YOON Jin-Hui, and principal researcher HONG Seon Pyo, demonstrated that precisely stimulating the lymphatics under skin on the neck and face can significantly enhance the flow of cerebrospinal ...

In a UNSW-led Nature study published today, researchers say that an off-the-scale marine heatwave in the North Atlantic Ocean in 2023 was caused by record-breaking weak winds combined with increased solar radiation – all on the back of ongoing climate change. From Greenland to the Sahara and across to the Americas, the waters of the North Atlantic Ocean warmed at an unprecedented speed in the summer of 2023. “The intensity of the warming in that single summer was equivalent to about two decades worth of warming for the North Atlantic,” says lead author Professor Matthew England from UNSW Sydney. “While ...