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                    <title>Phys.org news tagged with:rate variability</title>
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            <description>Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.</description>

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                    <title>Robots could help kids conquer reading anxiety, a new study suggests</title>
                    <description>For many children, the transition from learning to read to reading to learn is a crucial and sometimes nervewracking milestone. Reading aloud in class is intended to foster fluency and confidence, but for many students, it may spark anxiety that can hinder literacy development well into adulthood.</description>
                    <link>https://phys.org/news/2025-09-robots-kids-conquer-anxiety.html</link>
                    <category>Education</category>                    <pubDate>Wed, 10 Sep 2025 14:00:14 EDT</pubDate>
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                    <title>Study highlights how frustration can lead to failure for search and rescue dogs</title>
                    <description>Search and rescue dogs are heroes in fur coats, using their incredible sense of smell to find lost hikers, disaster victims, and missing people. But a new study suggests that these life-saving dogs may face an unexpected obstacle: frustration.</description>
                    <link>https://phys.org/news/2025-04-highlights-frustration-failure-dogs.html</link>
                    <category>Veterinary medicine</category>                    <pubDate>Tue, 01 Apr 2025 09:45:04 EDT</pubDate>
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                    <title>Switching off from work can be difficult but taking a proper break is good for your health</title>
                    <description>It&#039;s never been easier to stay connected to work. Even when we&#039;re on leave, our phones and laptops keep us tethered. Many of us promise ourselves we won&#039;t check emails during our break. But we do.</description>
                    <link>https://phys.org/news/2024-12-difficult-proper-good-health.html</link>
                    <category>Social Sciences</category>                    <pubDate>Wed, 25 Dec 2024 05:30:02 EST</pubDate>
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                    <title>The more relaxed a horse is the better it is at learning new tasks, study finds</title>
                    <description>Equine scientists at Nottingham Trent University wanted to see how the level of arousal in horses—the extent to which they might be excited or stressed for instance—affected their performance in a cognitive task.</description>
                    <link>https://phys.org/news/2024-01-horse-tasks.html</link>
                    <category>Plants &amp; Animals</category>                    <pubDate>Tue, 16 Jan 2024 11:07:05 EST</pubDate>
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                    <title>How fitter fish can feed more people in the midst of food insecurity</title>
                    <description>With the growing human population placing enormous pressure on food resources, it is estimated that by 2030 there will be an additional half a billion people to feed. This, combined with the rising cost of living, has amassed worldwide concern for the future of food security.</description>
                    <link>https://phys.org/news/2023-11-fitter-fish-people-midst-food.html</link>
                    <category>Molecular &amp; Computational biology</category>                    <pubDate>Wed, 29 Nov 2023 12:31:07 EST</pubDate>
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                    <title>Thermal imaging: A promising tool to measure stress in wild animals</title>
                    <description>Thermal imaging technology is poised to transform the study of the stress response in wild animals, according to Tufts researchers who have proven that the temperature shifts measured by the non-invasive technique correlate with other physiological changes in the animals.</description>
                    <link>https://phys.org/news/2023-11-thermal-imaging-tool-stress-wild.html</link>
                    <category>Plants &amp; Animals</category>                    <pubDate>Thu, 02 Nov 2023 13:04:04 EDT</pubDate>
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                    <title>Virtual meetings tire people because we&#039;re doing them wrong, says new research</title>
                    <description>New research suggests sleepiness during virtual meetings is caused by mental underload and boredom. Earlier studies suggested that fatigue from virtual meetings stems from mental overload, but new research from Aalto University shows that sleepiness during virtual meetings might actually be a result of mental underload and boredom.</description>
                    <link>https://phys.org/news/2023-10-virtual-people-wrong.html</link>
                    <category>Social Sciences</category>                    <pubDate>Mon, 30 Oct 2023 16:01:37 EDT</pubDate>
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                    <title>Genomic stability: A double-edged sword for sharks</title>
                    <description>Sharks have been populating the oceans for about 400 to 500 million years. While our planet and many of its inhabitants have undergone massive changes several times during this period, this basal group of vertebrates has remained somewhat constant. Their body shape and biology has hardly changed since then.</description>
                    <link>https://phys.org/news/2023-10-genomic-stability-double-edged-sword-sharks.html</link>
                    <category>Plants &amp; Animals</category>                    <pubDate>Mon, 23 Oct 2023 15:58:42 EDT</pubDate>
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                    <title>Webb confirms accuracy of universe&#039;s expansion rate, deepens mystery of Hubble constant tension</title>
                    <description>The rate at which the universe is expanding, known as the Hubble constant, is one of the fundamental parameters for understanding the evolution and ultimate fate of the cosmos. However, a persistent difference called the &quot;Hubble Tension&quot; is seen between the value of the constant measured with a wide range of independent distance indicators and its value predicted from the big bang afterglow.</description>
                    <link>https://phys.org/news/2023-09-webb-accuracy-universe-expansion-deepens.html</link>
                    <category>Astronomy</category>                    <pubDate>Tue, 12 Sep 2023 12:22:45 EDT</pubDate>
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                    <title>Online teaching triggers a different response in the body</title>
                    <description>Moderate stress can be beneficial for learning. Researchers at Ruhr-Universität Bochum have investigated whether stress occurs to the same extent in online teaching as during in-person classes. They measured various physiological parameters in students who completed an anatomy course either digitally or in the classroom.</description>
                    <link>https://phys.org/news/2022-08-online-triggers-response-body.html</link>
                    <category>Education</category>                    <pubDate>Wed, 17 Aug 2022 12:24:03 EDT</pubDate>
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                    <title>Narwhals show physiological disruption in response to seismic survey ship noise</title>
                    <description>The reaction of narwhals to the loud noise from seismic air guns used in oil exploration involves a disruption of the normal physiological response to intense exercise as the animals try to escape the noise. The overall effect is a large increase in the energetic cost of diving while a paradoxically reduced heart rate alters the circulation of blood and oxygen.</description>
                    <link>https://phys.org/news/2022-07-narwhals-physiological-disruption-response-seismic.html</link>
                    <category>Plants &amp; Animals</category>                    <pubDate>Fri, 08 Jul 2022 03:50:31 EDT</pubDate>
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                    <title>Can living organisms influence changes in their genes?</title>
                    <description>The change of genetic information over time is a key factor for evolutionary adaptations with which living beings can adapt to changes in their environment. On the one hand, genetic variability arises in the course of reproduction, where genetic information is divided and recombined in the developing offspring. In addition, mutations are another important source of genetic variability. This genetic variability then provides the starting point for the action of natural selection, which results in the preferential inheritance of certain advantageous genetic variants and thus enables adaptation to changing environmental conditions.</description>
                    <link>https://phys.org/news/2021-10-genes.html</link>
                    <category>Evolution</category>                    <pubDate>Thu, 07 Oct 2021 12:39:19 EDT</pubDate>
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                    <title>Vertical greenery can act as a stress buffer, study finds</title>
                    <description>Vertical greenery &#039;planted&#039; on the exterior of buildings may help to buffer people against stress, a Nanyang Technological University, Singapore (NTU Singapore) study has found.</description>
                    <link>https://phys.org/news/2021-07-vertical-greenery-stress-buffer.html</link>
                    <category>Environment</category>                    <pubDate>Tue, 06 Jul 2021 09:24:19 EDT</pubDate>
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                    <title>Objective analysis of stress in the classroom</title>
                    <description>Is it the difficulty of a task that determines whether or not students are stressed when working on it? Dr. Nina Minkley, a biologist working in biology didactics at Ruhr-Universität Bochum (RUB), set out to find out the answers in an interdisciplinary research team together with Dr. Moritz Krell (Freie Universität Berlin) and Dr. Kate Xu (Open Universiteit, Netherlands); to this end, the team used questionnaires and measured the heart rate in 209 test participants.&quot; This enables us to contrast the subjective perception of stress with an objective measurement method and compare the two,&quot; explains Nina Minkley. Contrary to expectations, it turned out that the effort invested in the task does not increase with its difficulty, nor does the stress level. The study was featured in the journal Frontiers in Education on 12. April 2021.</description>
                    <link>https://phys.org/news/2021-04-analysis-stress-classroom.html</link>
                    <category>Education</category>                    <pubDate>Thu, 15 Apr 2021 11:07:50 EDT</pubDate>
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                    <title>Cows prefer &quot;live&quot; co-moo-nication, study reveals</title>
                    <description>After months of technology-based communication enforced by COVID-19, many of us are missing a &quot;live&quot; human voice. But we&#039;re not the only ones—a new study reveals that cows also prefer a face-to-face chat. The research, published in Frontiers in Psychology, discovers that cows are actually more relaxed when spoken to directly by a live human, rather than when listening to a recorded voice via a loudspeaker.</description>
                    <link>https://phys.org/news/2020-10-cows-co-moo-nication-reveals.html</link>
                    <category>Veterinary medicine</category>                    <pubDate>Thu, 15 Oct 2020 03:01:10 EDT</pubDate>
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                    <title>Combating fatigue with a smartwatch application</title>
                    <description>Scientists from EPFL, UNIL and local startup be.care have developed a system that uses heart rate variability to detect fatigue and identify what kind it is. The system then uses the results to suggest lifestyle changes that can make a difference. An initial test has been carried out on university students under real-world conditions.</description>
                    <link>https://phys.org/news/2019-03-combating-fatigue-smartwatch-application.html</link>
                    <category>Consumer &amp; Gadgets</category>                    <pubDate>Tue, 26 Mar 2019 08:20:01 EDT</pubDate>
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                    <title>A calmer horse is just a sniff away</title>
                    <description>How many ways can you think of to stress out a horse? Trailering, bathing, clipping, vet visits, hoof trims, bridling, saddling—the possibilities are endless. Unfortunately, calming options are not. Thanks to research conducted at the University of Arizona, horsemen and horsewomen have a new tool to help manage equine stress, and it&#039;s as simple as a sniff. A sniff of lavender, that is.</description>
                    <link>https://phys.org/news/2018-07-calmer-horse.html</link>
                    <category>Plants &amp; Animals</category>                    <pubDate>Fri, 27 Jul 2018 10:40:03 EDT</pubDate>
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                    <title>Snooze mobiles: How vibrations in cars make drivers sleepy</title>
                    <description>New research has found the natural vibrations of cars make people sleepier, affecting concentration and alertness levels just 15 minutes after drivers get behind the wheel.</description>
                    <link>https://phys.org/news/2018-07-snooze-mobiles-vibrations-cars-drivers.html</link>
                    <category>Other</category>                    <pubDate>Thu, 05 Jul 2018 11:09:20 EDT</pubDate>
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                    <title>Fertility app for parents-to-be</title>
                    <description>Since January 2017 a sensor wristband that, according to the manufacturer, is capable of detecting a woman&#039;s fertile days in her cycle with 89 percent certainty has been on the market. Empa helped developing the sensor technology.</description>
                    <link>https://phys.org/news/2017-08-fertility-app-parents-to-be.html</link>
                    <category>Software</category>                    <pubDate>Fri, 11 Aug 2017 09:50:02 EDT</pubDate>
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                    <title>Red light, green light invention prevents work interruptions</title>
                    <description>A computer scientist has invented a unique desk light that automatically switches from green to red when you are &#039;in the zone&#039; and shouldn&#039;t be disturbed by colleagues.</description>
                    <link>https://phys.org/news/2017-05-red-green.html</link>
                    <category>Social Sciences</category>                    <pubDate>Fri, 05 May 2017 09:10:02 EDT</pubDate>
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                    <title>Is city biking hazardous to your health?</title>
                    <description>People used to say that exercising in New York City was like smoking a pack of cigarettes. Luckily, conditions have vastly improved, according to a recent NYC Health Department report, but some areas of the city continue to have high levels of pollution. Meanwhile, many more people are biking to and from work as the network of bike paths is expanded and the Citibike program continues to grow. How much pollution are bikers exposed to, and what effects might it be having on their health?</description>
                    <link>https://phys.org/news/2015-06-city-biking-hazardous-health.html</link>
                    <category>Environment</category>                    <pubDate>Thu, 18 Jun 2015 08:50:02 EDT</pubDate>
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                    <title>Gift ideas for the fit, or those who want to be</title>
                    <description>The latest personal fitness gadgets will help you smash your personal record, break you out of your fitness rut and persuade you to get sweaty.</description>
                    <link>https://phys.org/news/2014-11-gift-ideas.html</link>
                    <category>Consumer &amp; Gadgets</category>                    <pubDate>Tue, 25 Nov 2014 15:10:01 EST</pubDate>
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                    <title>Smartphones as a health tool for older adults</title>
                    <description>A team of researchers from the Universitat Politècnica de Catalunya · BarcelonaTech (UPC) and the Universitat Autònoma de Barcelona (UAB) is creating a smartphone app that will help older adults to understand their state of health and develop healthier habits.</description>
                    <link>https://phys.org/news/2014-08-smartphones-health-tool-older-adults.html</link>
                    <category>Software</category>                    <pubDate>Fri, 01 Aug 2014 09:20:01 EDT</pubDate>
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                    <title>Sea urchins cope with rising CO2 levels</title>
                    <description>(Phys.org) —Increasing levels of carbon dioxide (CO2) in the atmosphere  are causing oceans to become more acidic.  This situation poses a threat to marine organisms with shells made of calcium carbonate, because acid will corrode these shells.  If they are to survive, these organisms will have to adapt to conditions of high acidity.  In a paper published in Proceedings of the National Academy of Sciences,  Melissa Pepseni of Indiana University at Bloomington and her colleagues at Stanford University and University of California, Davis report that when exposed  to high  CO2 levels, purple sea urchins (Strongylocentrotus purpuratus) experience significant changes in genes that affect survival in an acidic environment. This indicates that the sea urchins can adapt to high CO2 levels caused by climate change.</description>
                    <link>https://phys.org/news/2013-04-sea-urchins-cope-co2.html</link>
                    <category>Plants &amp; Animals</category>                    <pubDate>Tue, 09 Apr 2013 12:41:46 EDT</pubDate>
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                    <title>No crystal ball necessary: New tool IDs predictable economic variables</title>
                    <description>You don&#039;t need a crystal ball to tell you what is going to happen next in the economy. You need a statistical model. A new method from North Carolina State University can help researchers determine which economic variables they should focus on by identifying whether a variable can be predicted.</description>
                    <link>https://phys.org/news/2009-07-crystal-ball-tool-ids-economic.html</link>
                    <category>Mathematics</category>                    <pubDate>Tue, 21 Jul 2009 07:50:17 EDT</pubDate>
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