U.S. FDA may nix black box warning on some menopause estrogen treatments
Experts worry the warning on vaginal estrogen menopause treatments is doing more harm than good and is not supported by science.
Experts worry the warning on vaginal estrogen menopause treatments is doing more harm than good and is not supported by science.
We commonly think that sperm determines the sex of a child, depending on whether it carries an X or Y chromosome, but a study now suggests that a woman's age is also a factor
Chinese researchers have recently challenged the long-held belief that "all life depends on sunlight." In a study published in Science Advances, the researchers identified how microbes in deep subsurface areas can derive energy from chemical reactions driven by crustal
A new international study suggests that ancient viral DNA embedded in our genome, which were long dismissed as genetic "junk," may actually play powerful roles in regulating gene expression. Focusing on a family of sequences called MER11, researchers from Japan, China, Canada,
Over multiple generations, small nematode worms began preferring microplastic-contaminated food over cleaner options, which could have consequences for ecosystem health
Some people’s biology may set them up to birth babies of a certain sex, explaining why a family with multiple children may have all girls or all boys.
Just 9% of plastic worldwide is recycled. Due to waste mismanagement, nearly three-quarters of it ends up in landfills or the environment.
In the last two decades, mass digitization has dramatically changed the landscape of scholarly research. The ability to search digital transcriptions of sources for specific keywords saves valuable time, and scholars are no longer confined to archives and libraries if they wish
Grazing livestock and farming over the past 4000 years have rapidly accelerated the rate of soil loss in the Alps, jeopardising the ecosystem and putting the mountains at risk of further erosion
Discover why some puzzles stump supersmart AIs but are easy for humans, what this reveals about the quest for true artificial general intelligence—and why video games are the next frontier
Instead of the big bang, some physicists have suggested that our universe may have come from a big bounce following another universe contracting – but quantum theory could rule this out
Obesity could exist in many forms, which may benefit from different treatments and prevention strategies
A new study published in the journal One Earth reveals that the way ecosystems collapse—abruptly or gradually—may depend on internal complexity, much like how magnetic materials behave under stress.
How much microplastic truly ends up in the seafood on our plates? The answer varies significantly because there are no standardized analytical procedures in food monitoring to quantify the amount of tiny plastic particles in fishery products.
Researchers from the University of Tokyo in collaboration with Aisin Corporation have demonstrated that universal scaling laws, which describe how the properties of a system change with size and scale, apply to deep neural networks that exhibit absorbing phase transition
Scientists use scanning tunneling microscopy to understand how a material's electronic or magnetic properties relate to its structure on the atomic scale. When using this technique, however, they can normally investigate only the uppermost atomic layer of a material.
When astronauts began spending six months and more aboard the International Space Station, they started to notice changes in their vision. For example, many found that, as their mission progressed, they needed stronger reading glasses. Researchers studying this phenomenon
Giving pedestrians a 7-second head start at traffic lights—known as Leading Pedestrian Intervals (LPIs)—is associated with a 33% reduction in total pedestrian injuries—both fatal and non-fatal—at New York City intersections, according to a new study from Columbia University
A team of researchers, led by Dr. Samuel Ramírez-Cruzado Aguilar-Galindo, recently provided a comprehensive, multidisciplinary study of a sperm-whale tooth found in the Copper Age mega-site of Valencina de la Concepción-Castilleja de Guzmán (henceforth referred to as Valencina).
Using a cutting-edge magnetic wave detection technique, a new study in Nature Communications has identified lithium in Mercury's exosphere for the first time.
Fundamental technique lets researchers use a big, expensive “teacher” model to train a “student” model for less. The post How Distillation Makes AI Models Smaller and Cheaper first appeared on Quanta Magazine
A 72 percent reduction in federal funding is devastating to math research. The American Mathematical Society is offering $1 million in backstop grants—but it’s likely not enough.
Lasers that are fabricated directly onto silicon photonic chips offer several advantages over external laser sources, such as greater scalability. Furthermore, photonic chips with these "monolithically" integrated lasers can be commercially viable if they can be manufactured in
Research from the University of Minnesota Twin Cities gives new insight into a material that could make computer memory faster and more energy-efficient.
Researchers have solved a mystery that has confounded scientists for 80 years: the crystal structure of the tetra-n-butylammonium bromide (TBAB) hydrate TBAB·26H2O. This substance belongs to a class of crystalline materials called semiclathrate hydrates, which form from the
A new study led by researchers from the Yunnan Observatories of the Chinese Academy of Sciences has unveiled a novel mechanism for filament splitting and the formation of double-decker filaments. Their findings were published in The Astrophysical Journal Letters.
In a groundbreaking UK first, eight healthy babies have been born using an IVF technique that includes DNA from three people—two parents and a female donor. The process, known as pronuclear transfer, was designed to prevent the inheritance of devastating mitochondrial diseases
Spanish firefighters on Friday were bringing under control a forest fire near Madrid that had cloaked the capital in a huge cloud of acrid smoke.
If you're in an earthquake-prone area and own an Android phone, it could save your life. It may even have already done so. The Android Earthquake Alert (AEA) system, which began in the U.S. in 2020 and has since expanded globally, sends an automatic alert approximately one
A new study led by researchers at the Stanford Accelerator for Learning explores how companies can use immersive technology to boost new managers' relational skills.
What did long-necked dinosaurs eat—and where did they roam to satisfy their hunger? A team of researchers has reconstructed the feeding behavior of sauropods using cutting-edge dental wear analysis. Their findings, published in Nature Ecology and Evolution, show that
In a step toward smarter materials, researchers from the Institute of Science Tokyo collaborated with researchers from Switzerland to develop a smart hinge-like molecule that can indicate mechanical stress in polymeric materials through fluorescence.
An international team led by Einstein Professor Cecilia Clementi in the Department of Physics at Freie Universität Berlin has introduced CGSchNet, a machine-learned coarse-grained (CG) model that can accurately and efficiently simulate proteins like never before. The study is
Many proteins are capable of spontaneously rearranging themselves within cells to form molecular condensates—membraneless intracellular structures formed by one or multiple proteins—through a process known as liquid–liquid phase separation (LLPS). This biological process is
Orion Nebula, Pleiades and Hyades: The latest research results indicate that these famous star clusters represent the different phases of life of one and the same star system. A team of astrophysicists at the Institute for Advanced Studies in Basic Sciences in Zanjan, Iran, and
Sleep may not just be rest for the mind—it may be essential maintenance for the body's power supply. A new study by University of Oxford researchers, published in Nature, reveals that the pressure to sleep arises from a build-up of electrical stress in the tiny energy
Bioengineered organs are no longer just structural substitutes. A review published in Trends in Biotechnology introduces a groundbreaking concept: biohybrid-engineered tissue (BHET) platforms—living constructs integrated with electronics that can monitor, modulate, and even
Researchers at the Yale School of Public Health have discovered the evolutionary rhythm of gene expression, showing that changes happen at strikingly varied rates.
An international study led by the University of Liège proposes a new map of the potential for natural vegetation on Earth, far beyond forests. By incorporating the role of fire and herbivores, researchers are paving the way for a more realistic and inclusive approach to
Unraveling the genetic mechanisms behind adaptive evolution stands as a pivotal challenge in molecular biology. While organisms often exhibit rapid phenotypic adjustments to environmental shifts, the underlying genomic processes remain poorly understood.
New research from the University of Victoria (UVic) highlights how marine heat waves can dramatically impact marine ecosystems and offers a stark preview of how future ocean warming will reshape ocean life. The research, published in Oceanography and Marine Biology: An Annual
Researchers from IMDEA Materials, in conjunction with the Helmholtz-Zentrum Hereon Institute of Surface Science and Meotec GmbH, have undertaken the first-ever comparison of corrosion resistance in Mg and Zn bioalloys produced by extrusion and additive manufacturing.
When asked to think of a chemical reaction, you might picture bubbling liquids in a beaker, or maybe applying heat to a mixture until something transforms. But some of the most important reactions in nature and industry don't need heat or solvents. Instead, they need force.
The Michigan Womyn's Music Festival, hosted from 1976 to 2015, brought together lesbian feminists for a celebration of culture and activism. Today, the festival is perhaps best known for its controversial "womyn-born-womyn" attendance policy, which excluded trans women from
University of Queensland surveys reveal the peak of the southern migration of humpback whales down the east Australian coast is now weeks earlier than it was 21 years ago, and a warming Southern Ocean may be the reason. The study is published in Scientific Reports.
In Rehab , journalist Shoshana Walter investigates the systemic pitfalls of drug treatment programs, which prevent people’s recovery from addiction.
A rather unassuming particle is playing an important role in the hunt for subatomic oddities. Similar to protons and neutrons, mesons are composed of quarks bound together by the strong nuclear force. But these short-lived particles have different characteristics that can
UT Beef and Forage Center coordinator David McIntosh, an eighth-generation native of northeast Tennessee, watched with unease as Hurricane Helene approached his hometown of Chuckey.
A new material platform has enabled scientists to create photon pairs whose entanglement can be tuned from a layer thinner than a human hair.
Global warming does not affect our planet evenly. Some areas such as the Arctic region or high mountain peaks warm faster than the global average, whereas others, including large parts of the tropical oceans, show reduced temperature trends compared to the mean. The