PEDSnet report details how COVID-19 pandemic has affected children

Analysis of 135,000-plus medical records shows the novel coronavirus hits hardest among teens, children with diabetes or cancer, lower-income families, and Black, Latinx and Asian groups. …

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तरल पदार्थों का व्यवहार सपाट सतहों की तुलना में वक्र सतहों पर अलग होता है

Read time: एक मिनटSimran Gurung [ सिमरन गुरुंग][अनपलाश पर तेवरक फंदूंग द्वारा चित्र]
क्या आपने इस बात पर कभी  विचार किया है कि एक फुटबॉल की सतह को छोटे छोटे  पंचकोणों और षट्कोणों के रूप में एक साथ सिला जाता है, जबकि कोई भी फर्श टाइलिंग कभी पंचकोण के आकार में  नहीं होता? गणितज्ञ यह बात लंबे समय से जानते हैं कि टाइलिंग फर्श, जो आमतौर पर सपाट होते हैं, पंचकोणों का उपयोग करने से अनिवार्य रूप से कई खाली जगह  छोड़ देंगे। हालाँकि , सतह के वक्र  होने पर स्थिति बदल जाती है, जैसे कि एक गेंद में । ठोस पदार्थों…

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U.S. should look at how other high-income countries regulate health care costs, experts urge

Structuring negotiations between insurers and providers, standardizing fee-for-service payments and negotiating prices can lower the United States’ health care spending by slowing the rate at which healthcare prices increase, according to a new study. …

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Breaking the ice on melting and freezing

Researchers have shared new insights into melting icebergs and lake ice formation. …

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U.S.-European mission launches to monitor the world’s oceans

The Sentinel-6 Michael Freilich satellite will extend a nearly 30-year continuous dataset on sea level collected by an ongoing collaboration of U.S. and European satellites while enhancing weather forecasts and providing detailed information on large-scale ocean currents to support ship navigation near coastlines. …

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Science reveals secrets of a mummy’s portrait

How much information can you get from a speck of purple pigment, no bigger than the diameter of a hair, plucked from an Egyptian portrait that’s nearly 2,000 years old? Plenty, according to a new study. Analysis of that speck can teach us about how the pigment was made, what it’s made of – and maybe even a little about the people who made it. …

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Zebra finches amazing at unmasking the bird behind the song

Like humans who can instantly tell which friend or relative is calling by the timbre of the person’s voice, zebra finches have a near-human capacity for language mapping. …

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Folding of SARS-CoV2 genome reveals drug targets — and preparation for ‘SARS-CoV3’

Researchers report having observed the RNA folding structures of the SARS-CoV2 genome with which the virus controls the infection process. Since these structures are very similar among various beta corona viruses, the scientists not only laid the foundation for the targeted development of novel drugs for treating COVID-19, but also for future occurrences of infection with new corona viruses that may develop in the future. …

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Supramolecular chemistry: Self-constructed folded macrocycles with low symmetry

The synthesis and self-organization of biological macromolecules is essential for life on earth. Chemists now report the spontaneous emergence of complex ring-shaped macromolecules with low degrees of symmetry in the laboratory. …

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Hyperbaric oxygen treatment: Clinical trial reverses two biological processes associated with aging in human cells

A new study indicates that hyperbaric oxygen treatments (HBOT) in healthy aging adults can stop the aging of blood cells and reverse the aging process. In the biological sense, the adults’ blood cells actually grow younger as the treatments progress. …

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