https://medicalxpress.com/ en-us provides the latest news from University of Arizona From the ancient sludge of lakebeds in Asia's Tibetan Plateau, scientists can decipher a vision of Earth's future. That future, it turns out, will look very similar to the mid-Pliocene warm period—an epoch 3.3 million to 3 million years ago when the average air temperature at mid-latitudes rarely dropped below freezing. It was a time when permanent ice was just beginning to cling to the northern polar regions, and mid-latitude alpine permafrost—or perpetually frozen soil—was much more limited than today. https://phys.org/news/2022-03-fast-melting-alpine-permafrost-contribute-global.html Mon, 14 Mar 2022 17:17:55 EDT news566497041 Newly released data from an ongoing research study at the University of Arizona Health Sciences in combination with the Center for Disease Control and Prevention's PROTECT study show that the Pfizer-BioNTech COVID-19 vaccine has been a moderately effective tool for preventing the spread of COVID-19 and reducing the severity of infection among children and adolescents. https://medicalxpress.com/news/2022-03-covid-vaccine-moderately-effective-variants.html Mon, 14 Mar 2022 17:05:31 EDT news566496327 Since the late 1940s, watching TV has been a popular American pastime. Television entertains us, educates us and helps shape our views of the world. https://phys.org/news/2022-02-evolution-black-representation-television.html Tue, 22 Feb 2022 08:22:54 EST news564740571 The presumed SpaceX Falcon 9 rocket booster that's on a course to hit the moon March 4 is actually a Chinese booster from a rocket launch in 2014, a University of Arizona team has confirmed. https://phys.org/news/2022-02-students-errant-rocket-chinese-track.html Wed, 16 Feb 2022 07:38:17 EST news564219491 Infants and children with poor nutrition and growth are more likely to suffer from a serious respiratory condition that has been linked to comorbidities and early mortality as adults, according to an international investigation led by researchers at the University of Arizona Health Sciences.  https://medicalxpress.com/news/2022-02-undernourished-infants-lung-restriction-weaker.html Thu, 10 Feb 2022 10:39:26 EST news563711963 Feeling full, or satiated, after a meal is healthy and normal, but what causes that feeling is complicated and not well understood. New University of Arizona-led research published in the journal Molecular Metabolism has identified a brain region and neural circuitry that mediate satiation, which could help scientists better target drugs to treat eating disorders or manage weight. https://medicalxpress.com/news/2022-02-brain-region-full.html Thu, 10 Feb 2022 07:27:48 EST news563700464 When it comes to coping with climate change, there may be two types of people: those who take action to try to improve the environment and those who don't bother because they don't believe their actions will make a difference. https://medicalxpress.com/news/2022-02-climate-coping-health.html Tue, 01 Feb 2022 11:40:01 EST news562936902 There is no crystal ball to tell ecologists how forests of the future will respond to the changing climate, but a University of Arizona-led team of researchers may have created the next best thing. https://phys.org/news/2022-01-future-forests-smaller-trees-carbon.html Thu, 27 Jan 2022 07:21:32 EST news562490484 University of Arizona Health Sciences researchers discovered a potential treatment to reduce the risk of post-stroke dementia, which may be influenced by the immune response to dead brain tissue left in the wake of a stroke, according to a study published in the Journal of Neuroscience. https://medicalxpress.com/news/2022-01-cholesterol-buildup-brain-dementia.html Thu, 20 Jan 2022 07:02:39 EST news561884553 Biomedical engineering professor and BIO5 Institute Director Jennifer Barton has spent nearly a decade developing a falloposcope to detect ovarian cancer in its early stages. Banner—University Medical Center surgeon Dr. John Heusinkveld has now used the device to capture images of study participants' fallopian tubes for the first time. https://medicalxpress.com/news/2022-01-small-device-earlier-ovarian-cancer.html Wed, 19 Jan 2022 09:21:16 EST news561806462 Irina Panyushkina grew up in Siberia, near the Arctic Circle. She was raised on stories of explorers trudging through seas of ice to reach the North Pole. https://phys.org/news/2022-01-rivers-arctic-ice-alarming-experts.html Fri, 14 Jan 2022 08:45:50 EST news561372343 A survey completed using a combination of ground and space-based telescopes yielded a treasure trove of previously unknown globular clusters—old, dense groups of thousands of stars that all formed at the same time—in the outer regions of the elliptical galaxy Centaurus A. The work presents a significant advance in understanding the architecture and cosmological history of this galaxy and offers new insights into galaxy formation in general and the distribution of dark matter in the universe. https://phys.org/news/2022-01-treasure-trove-globular-clusters-clues.html Tue, 11 Jan 2022 16:10:02 EST news561138271 The serotonin 2A (5-HT2A) receptor is widely distributed in the brain and plays a critical role in perception, cognition and psychosis. It is also responsible for the psychedelic effects of drugs, such as psilocybin (hallucinogenic mushrooms) and LSD. Abnormal 5-HT2A receptor function is associated with psychiatric disorders, including schizophrenia. The leading class of antipsychotic drugs used to treat schizophrenia targets 5-HT2A receptors to reduce symptoms of hallucinations and impaired cognition. https://medicalxpress.com/news/2022-01-deprivation-serotonin-2a-receptor-response.html Tue, 11 Jan 2022 11:22:41 EST news561122557 It may seem as if California is always either flooding or on fire. This climatic whiplash is not imagined: New University of Arizona research, published in the International Journal of Climatology, shows that while dry events are not getting drier, extreme wet events have been steadily increasing in magnitude since the middle of the last century. These increased extreme wet events can result in more dangerous flooding and also fuel wildfires. https://phys.org/news/2022-01-california-climate-whiplash-worsening-years.html Tue, 11 Jan 2022 08:12:50 EST news561111167 Researchers have identified the first signature of a magnetic field surrounding a planet outside of our solar system. Earth's magnetic field acts as a shield against energetic particles from the sun known as the solar wind. Magnetic fields could play similar roles on other planets. https://phys.org/news/2021-12-astronomers-signature-magnetic-field-exoplanet.html Tue, 21 Dec 2021 07:10:43 EST news559293040 To paint a clearer picture of how global climate change will affect Earth's ecosystems, a team of 80 international research scientists set out to complete an unparalleled experiment: forcing the world's only enclosed rainforest—housed in the University of Arizona's Biosphere 2—through a four-month-long controlled drought and recovery. https://phys.org/news/2021-12-diverse-water-use-strategies-forests-resilient.html Thu, 16 Dec 2021 14:00:01 EST news558861557 Researchers from the UArizona College of Medicine—Tucson found that the bacterial lysate OM-85 blocked SARS-CoV-2 infection by decreasing the ability of the coronavirus to bind to the lung cell surface receptor ACE2. https://medicalxpress.com/news/2021-12-respiratory-tract-bacterial-covid-.html Wed, 15 Dec 2021 07:24:24 EST news558775460 Now is the best time to get a glimpse of Comet C/2021 A1, better known as Comet Leonard. It's named for its discoverer, Gregory Leonard, a senior research specialist at the University of Arizona Lunar and Planetary Laboratory. https://phys.org/news/2021-12-comet-leonard.html Tue, 14 Dec 2021 07:24:25 EST news558689056 Ecologists estimate that 15 to 37 percent of plant and animal species will go extinct as a direct result of the rapidly changing climate. But new University of Arizona-led research published in the journal Ecology Letters shows that current models don't account for the complexities of ecosystems as they are impacted by climate change. As a result, these extinction rates are likely underestimated. https://phys.org/news/2021-12-climate-only-underestimate-species-extinction.html Thu, 09 Dec 2021 07:34:36 EST news558257672 The odds are good that at least a few algorithms helped you find this article. https://techxplore.com/news/2021-12-algorithms-decisions.html Tue, 07 Dec 2021 08:20:02 EST news558087281 The human body's immune system weakens over time, making older adults more susceptible to infections and leaving scientists with the puzzling dilemma of how to maintain health across the lifespan. As part of continuing research at the University of Arizona Health Sciences, a recent study into how infection affects the immune system resulted in a surprising outcome that could lead to new immunotherapies to prevent disease and novel ways to strengthen the aging immune system. https://medicalxpress.com/news/2021-12-benefit-immune-infection.html Fri, 03 Dec 2021 15:00:53 EST news557766025 A team of University of Arizona researchers has developed an ultra-thin wireless device that grows to the surface of bone and could someday help physicians monitor bone health and healing over long periods. The devices, called osseosurface electronics, are described in a paper published Thursday in Nature Communications. https://medicalxpress.com/news/2021-11-ultra-thin-bone.html Tue, 23 Nov 2021 11:10:06 EST news556887803 Imagine you're walking through a chain supermarket, headed for the dairy section. https://medicalxpress.com/news/2021-11-lost-grocery-closer.html Tue, 16 Nov 2021 16:59:41 EST news556304376 A near-Earth asteroid named Kamo`oalewa could be a fragment of our moon, according to a new paper published in Nature Communications Earth and Environment by a team of astronomers led by the University of Arizona. https://phys.org/news/2021-11-near-earth-asteroid-lost-fragment-moon.html Thu, 11 Nov 2021 11:00:06 EST news555836069 Researchers at the University of Arizona Health Sciences are closer to developing a safe and effective non-opioid pain reliever after a study showed that a new compound they created reduces the sensation of pain by regulating a biological channel linked to pain. https://medicalxpress.com/news/2021-11-compound-pain-relief.html Wed, 10 Nov 2021 14:00:03 EST news555750604 As researchers investigate reasons for America's persistent gender wage gap, one possible explanation that has emerged in roughly the last decade is that women may be less competitive than men, and are therefore passed over for higher-ranking roles with larger salaries. https://phys.org/news/2021-11-theory-women-competitive-men.html Mon, 01 Nov 2021 15:00:06 EDT news554971468 A possible canine vaccine for Valley fever took one giant step closer to becoming a reality thanks to a University of Arizona College of Medicine—Tucson-led study that showed the vaccine provided a high level of protection against Coccidioides posadasii, a fungus that causes Valley fever. The development of a potential canine vaccine serves as a positive harbinger of a human vaccine. https://phys.org/news/2021-10-vaccine-dogs-valley-fever.html Thu, 28 Oct 2021 08:42:37 EDT news554629353 A team of international researchers led by the University of Arizona reported last year that they had uncovered the largest and oldest Maya monument—Aguada Fénix. That same team has now uncovered nearly 500 smaller ceremonial complexes that are similar in shape and features to Aguada Fénix. The find transforms previous understanding of Mesoamerican civilization origins and the relationship between the Olmec and the Maya people. https://phys.org/news/2021-10-ancient-ceremonial-sites-southern-mexico.html Mon, 25 Oct 2021 16:08:25 EDT news554396886 Hot Jupiters—giant gas planets that race around their host stars in extremely tight orbits—have become a little bit less mysterious thanks to a new study combining theoretical modeling with observations by the Hubble Space Telescope. https://phys.org/news/2021-10-astronomers-field-exoplanets-hot-jupiters.html Thu, 21 Oct 2021 11:15:10 EDT news554033706 Throughout Earth's oceans runs a conveyor belt of water. Its churning is powered by differences in the water's temperature and saltiness, and weather patterns around the world are regulated by its activity. https://phys.org/news/2021-10-ocean-currents-extreme-winter-weather.html Wed, 20 Oct 2021 14:10:51 EDT news553957848