- PhysOrg
- 22/5/12 23:39
Over the past three decades Ara Mirzaian has fitted braces for everyone from Paralympians to children with scoliosis. But Msituni was a patient like none other—a newborn giraffe.
219 articles from THURSDAY 12.5.2022
Over the past three decades Ara Mirzaian has fitted braces for everyone from Paralympians to children with scoliosis. But Msituni was a patient like none other—a newborn giraffe.
Lei Zhang, Ph.D., and Michael Niederweis, Ph.D., of the University of Alabama at Birmingham have made what they call "a major step" in understanding how Mycobacterium tuberculosis acquires iron from its human host—a process essential for the pathogenesis of this bacterium. Tuberculosis kills more than 1 million people each year, but without iron, M. tuberculosis cannot grow.
Researchers at Eötvös Loránd University (ELTE) have created a new disease model that has contributed to a better understanding of Bloom syndrome and the sex determination processes of zebrafish. The study, linking two seemingly unrelated topics, was carried out by the research teams of Mihály Kovács (Department of Biochemistry) and Máté Varga (Department of Genetics) and published in the...
A relentless heat wave has blanketed India and Pakistan since mid-March, causing dozens of deaths, fires, increased air pollution, and reduced crop yields. Weather forecasts show no prospect of relief any time soon. NASA's Ecosystem Spaceborne Thermal Radiometer Experiment on Space Station instrument (ECOSTRESS) has been measuring these temperatures from space, at the highest spatial resolution of...
GREMM director Robert Michaud said it is difficult to determine the reasons why a minke whale would venture so far from its usual habitat, which is some 450 kilometres down river in the Gulf of St. Lawrence and...
Researchers had no idea if anything would sprout in harsh moon dirt and wanted to see if it could be used to grow food by the next generation of lunar explorers. The results stunned...
NASA's Hubble Space Telescope has allowed astronomers to view galaxies of all shapes and sizes from nearly every angle. When a galaxy is seen edge-on, the mesmerizing perspective reveals a dazzling slice of the universe. The "Little Sombrero," also known as NGC 7814 or Caldwell 43, is one such galaxy.
A Colorado State University-led study published in the journal Environmental Science & Technology reveals that in U.S. cities over a several-year period, natural gas pipeline leaks were more prevalent in neighborhoods with low-income or majority non-white populations than those with high income or predominately white populations.
At just 33 years old, Caltech assistant professor Katie Bouman is already a veteran of two major scientific discoveries.
The vibrational modes of nanomechanical resonators are analogous to different notes of a guitar string and have similar properties such as frequency (pitch) and lifetime. The lifetime is characterized by the quality factor, which is the number of times that the resonator oscillates until its energy is reduced by 70%. The quality factor is crucial for the modern applications of mechanical...
Earth's oceans are home to some of the most diverse ecosystems on the planet, but warming temperatures are causing many marine animals, including coral, to die out.
A new study reveals that in U.S. cities over a several-year period, natural gas pipeline leaks were more prevalent in neighborhoods with low-income or majority non-white populations than those with high income or predominately white populations.
The declining body size of North Atlantic right whales may have critical consequences for the future of the species. New research shows that smaller females produce fewer calves.
The Human Cell Atlas sheds new light on the types and traits of immune cells that can be found in the human body, from developmental stages to adulthood.
Research could provide a new approach to treating an aggressive form of breast cancer. A study found that targeting the immune microenvironment in lymph nodes and tumors simultaneously led to long-term tumor remission in mice models of metastatic triple negative breast cancer.
The massive Jan. 15, 2022, eruption of the Hunga submarine volcano in the South Pacific Ocean created a variety of atmospheric wave types, including booms heard 6,200 miles away in Alaska. It also created an atmospheric pulse that caused an unusual tsunami-like disturbance that arrived at Pacific shores sooner than the actual tsunami.
A study investigates the reasons for decreasing remission rates for patients with non-Hodgkin lymphoma treated with chimeric antigen receptor-T cell therapy (CAR-T cell therapy).
Scientists found a chemical from a rainforest tree that binds to opioid receptors in the brain and may have utility as an antidepressant or anti-anxiety drug.
Optical computing uses photons instead of electrons to perform computations, which can significantly increase the speed and energy efficiency of computations by overcoming the inherent limitations of electrons. The basic principle of optical computing is the light-matter interaction. Matrix computing has become one of the most widely used and indispensable information processing tools in science...
Water often falls from the sky and is stored in mountains across the U.S. as snow before it melts and flows down to urban and rural communities. Knowing what factors influence when and how much of that snowmelt ultimately makes it to streams, rivers and reservoirs is crucial for water managers trying to make the most of limited water resources. A new study led by researchers at University of...
People are more likely to choose a healthy food option than an unhealthy food option among people from different social groups because they fear being judged negatively for their choices.
For a creature that—legs and all—might be no larger than a pencil eraser, spiders continue to surprise researchers with their cognitive abilities.
Science, <a href="https://www.science.org/toc/science/376/6594">Volume 376, Issue 6594</a>, May 2022.
Science, <a href="https://www.science.org/toc/science/376/6594">Volume 376, Issue 6594</a>, May 2022.
Science, <a href="https://www.science.org/toc/science/376/6594">Volume 376, Issue 6594</a>, May 2022.
Science, <a href="https://www.science.org/toc/science/376/6594">Volume 376, Issue 6594</a>, May 2022.
Science, <a href="https://www.science.org/toc/science/376/6594">Volume 376, Issue 6594</a>, May 2022.
Science, <a href="https://www.science.org/toc/science/376/6594">Volume 376, Issue 6594</a>, May 2022.
Science, <a href="https://www.science.org/toc/science/376/6594">Volume 376, Issue 6594</a>, May 2022.
The cnidocytes -- or stinging cells -- that are characteristic of sea anemones, hydrae, corals and jellyfish, and make us careful of our feet while wading in the ocean, are also an excellent model for understanding the emergence of new cell types, according to new research.
A new study finds that tree growth does not seem to be generally limited by photosynthesis but rather by cell growth. This suggests that we need to rethink the way we forecast forest growth in a changing climate, and that forests in the future may not be able to absorb as much carbon from the atmosphere as we thought.
A quantum system with only 51 charged atoms can take on more than two quadrillion different states. Calculating the system's behavior is child's play for a quantum simulator. But verifying the result is almost impossible, even with today's supercomputers. A research team has now shown how these systems can be verified using equations formulated in the 18th century.
Imagine sitting at a meeting where the shape of the table and your place at it might impact how you get along with the other members. Cells also communicate with their nearest neighbors, and in embryos, nothing is left to chance in the 'seating plan' for the first few cells. However, questions remain about the how this process is controlled and how it can influence the overall growth of an...
Researchers have equipped gut bacteria with data logger functionality as a way of monitoring which genes are active in the bacteria. These microorganisms could one day offer a noninvasive means of diagnosing disease or assessing the impact of a diet on health.
Genetic studies have revealed many genes linked to both common and rare disease, but to understand how those genes bring about disease and use those insights to help develop therapies, scientists need to know where they are active in the body. Research on single cells can help achieve this goal, by surveying gene activity in specific cell types. Scientists need to profile all cell types and...
Researchers have published a review of care for women with pre-eclampsia.
The Hunga volcano ushered in 2022 with a bang, devastating the island nation of Tonga and sending aid agencies, and Earth scientists, into a flurry of activity. It had been nearly 140 years since an eruption of this scale shook the Earth.
At the dawn of the 1970s, the idea of a massive scalar boson as the keystone of a unified theoretical model of the weak and electromagnetic interactions had yet to become anchored in a field that was still learning to live with what we now know as the standard model of particle physics. As the various breakthroughs of the decade gradually consolidated this theoretical framework, the...
With rare exceptions, each of the trillions of cells in our bodies carries an exact duplicate of the human genome, which contains between 20,000 and 25,000 protein-coding genes. But to carry out the specialized functions that make life possible, organs like the kidney, lung, heart, and brain rely on tissues built from distinctive cell types, which come about when individual cells develop to...
Imagine sitting at a meeting where the shape of the table and your place at it might impact how you get along with the other members. Cells also communicate with their nearest neighbors, and in embryos, nothing is left to chance in the "seating plan" for the first few cells. However, questions remain about the how this process is controlled and how it can influence the overall growth of an...
Researchers from ETH Zurich, University Hospital of Bern and the University of Bern have equipped gut bacteria with data logger functionality as a way of monitoring which genes are active in the bacteria. These microorganisms could one day offer a noninvasive means of diagnosing disease or assessing the impact of a diet on health.