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Book Review: The Surprising Science of Walking

In Shane O'Mara's "In Praise of Walking," even the most mundane walk is rife with scientific, evolutionary, and even spiritual significance. O'Mara weaves history, philosophy, and poetry into the scientific literature that shows how walking stimulates our brains, impacting learning and memory.

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Til forsvar for 60'ernes forkætrede beton

PLUS. Glas­alstrupbygningen var et pust fra tidens arkitekturstrømninger. En renovering skal lære skeptikerne om betonens kvaliteter.

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Watch This Black Hole Blow Bubbles

A black hole was seen shooting electrified gas and energy into space. Each blob contained about 400 million billion pounds of matter.

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Did Mom Take Her Medicine? Keeping Eyes on Elders in Quarantine

Technology can help families monitor the health and safety of older people kept from their families by the coronavirus.

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The activist dismantling racist police algorithms

Hamid Khan has been a community organizer in Los Angeles for over 35 years, with a consistent focus on police violence and human rights. He talked to us on April 3, 2020, for a forthcoming podcast episode about artificial intelligence and policing. As the world turns its attention to police brutality and institutional racism, we thought our conversation with him about how he believes technology e

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Senior spy appointed to lead UK's joint biosecurity centre

New organisation will monitor spread of coronavirus and seek to suppress new outbreaks

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Ultrastable, selective catalyst for propane dehydrogenation developed

A group of Japanese scientists has developed an ultrastable, selective catalyst to dehydrogenate propane—an essential process to produce the key petrochemical substance of propylene—without deactivation, even at temperatures of more than 600 degrees C.

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How is a metal formed?

What does it mean to be a metal? These seem like textbook questions with a simple answer: Metal is characterized by free electrons that give rise to high electric conductivity. But how, exactly, is a metallic conduction band formed from originally localized electrons, and what is the corresponding microscopic picture for the material involved?

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Only a fifth of ice-free land on Earth has very little human influence

Only 21 per cent of Earth's ice-free land has very little human influence, a new map of the planet's unoccupied or sparsely populated areas shows

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Farvel til kæmpeskildpadder og næsehorn: Hundredvis af arter kan snart forsvinde for altid

Over 500 hvirveldyr står på randen til udryddelse, viser ny undersøgelse.

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Single-atom Pt in intermetallics as an ultrastable and selective catalyst for propane dehydrogenation

Nature Communications, Published online: 05 June 2020; doi:10.1038/s41467-020-16693-9 Propylene production via propane dehydrogenation demands a highly stable catalyst that works without deactivation even at high temperatures. Here, the authors show that single-atom Pt included in thermally stable intermetallic PtGa works as an active and selective catalyst for propane dehydrogenation even at 600

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Global correlates of range contractions and expansions in terrestrial mammals

Nature Communications, Published online: 05 June 2020; doi:10.1038/s41467-020-16684-w Understanding why many species ranges are contracting while others are stable or expanding is important to inform conservation in an increasingly human-modified world. Here, Pacifici and colleagues investigate changes in the ranges of 204 mammals, showing that human factors mostly explain range contractions whil

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The effect of flow on swimming bacteria controls the initial colonization of curved surfaces

Nature Communications, Published online: 05 June 2020; doi:10.1038/s41467-020-16620-y Bacterial colonization of surfaces has a profound environmental, technological and medical impact. Here, Secchi et al. show how fluid flow affects the magnitude and location of bacterial colonization on curved surfaces through its coupling with cell morphology and motility.

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Transcriptomics and proteomics reveal a cooperation between interferon and T-helper 17 cells in neuromyelitis optica

Nature Communications, Published online: 05 June 2020; doi:10.1038/s41467-020-16625-7 Type I IFN has apposing effects in neuromyelitis optica spectrum disorder (NMOSD) and multiple sclerosis (MS). Here the authors perform molecular profiling of NMOSD patients and mouse mechanistic experiments of neuro-inflammation to show that IFN-I stimulates pathogenic Th17 via IL-6 production by B cells.

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Interpreting molecular similarity between patients as a determinant of disease comorbidity relationships

Nature Communications, Published online: 05 June 2020; doi:10.1038/s41467-020-16540-x Disease comorbidity is attracting increasing attention, but the involvement of molecular factors in forecasting risk of a disease in the presence of other diseases is poorly understood. Here the authors build a disease interaction network based on gene expression profile and discover new comorbidity relationship

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Differential contributions of the two cerebral hemispheres to temporal and spectral speech feedback control

Nature Communications, Published online: 05 June 2020; doi:10.1038/s41467-020-16743-2 Speech production is thought to rely on speech motor programs in the left cerebral hemisphere and on auditory feedback control by the right halve of the human brain. Here, the authors reveal that the left hemisphere preferentially controls temporal speech features while the right hemisphere controls speech by an

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Spitzenkörper assembly mechanisms reveal conserved features of fungal and metazoan polarity scaffolds

Nature Communications, Published online: 05 June 2020; doi:10.1038/s41467-020-16712-9 The Spitzenkörper (SPK) is a polarized accumulation of proteins and secretory vesicles associated with tip growth of fungal hyphae. Here, Zheng et al. study SPK assembly and dynamics, identify SPK protein scaffolds and associated proteins, and reveal similarities with other scaffolds from metazoans.

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Rab35-regulated lipid turnover by myotubularins represses mTORC1 activity and controls myelin growth

Nature Communications, Published online: 05 June 2020; doi:10.1038/s41467-020-16696-6 Charcot-Marie-Tooth (CMT) is an inherited peripheral neuropathy. Here, the authors show that Rab35 forms a complex with genes implicated in CMT, MTMR13 and MTMR2, which regulates myelin growth by controlling mTORC1 signaling through lipid turnover.

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Anti-virus face masks plague Hong Kong's beaches

Surgical masks are washing up in growing quantities on the shores of Hong Kong, a city that has overwhelmingly embraced face coverings to fight the coronavirus.

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Kenya bans single-use plastics in protected areas

Kenya on World Environment Day barred all single-use plastics such as water bottles and straws from its national parks, beaches, forests and other protected areas.

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Vänskap på högstadiet är ett hårt arbete

Att ha kompisar är meningen med skolan, tycker ungdomarna i en ny avhandling. Bredvid skolarbetet är vänskapande ett hårt arbete som pockar på tid och energi. Gränser för vänskap är ständigt närvarande i samtalen i klassrummet, i matkön och på väg till slöjdsalen. Särskilt tydliga blir vänskapsidealen när elever som befinner sig på olika nivå i klassens statushierarki blir vänner. – Vi vuxna behö

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Ultrastable, selective catalyst for propane dehydrogenation developed

A group of Japanese scientists has developed an ultrastable, selective catalyst to dehydrogenate propane – an essential process to produce the key petrochemical substance of propylene – without deactivation, even at temperatures of more than 600°C.

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The Republicans Telling Their Voters to Ignore Trump

T here's a major complication in President Donald Trump's recent crusade against voting by mail, which he has called "a scam" that will lead to "the greatest Rigged Election" in history: In states that Trump desperately needs to win this fall, Republicans love it. Take Arizona, where polls show Trump trailing former Vice President Joe Biden after he carried the state narrowly in 2016. Republicans

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What should schools teach? Now is the moment to ask.

The coronavirus pandemic has left many at an interesting crossroads in terms of mapping out the future of their respective fields and industries. For schools, that may mean a total shift not only in how educators teach, but what they teach. One important strategy moving forward, thought leader Caroline Hill says, is to push back against the idea that getting ahead is more important than getting a

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Farmers Find Ways To Save Millions Of Pigs From Being Euthanized

When COVID-19 infections forced pork companies to close processing plants, some farmers predicted that it would force them to euthanize millions of hogs. The actual number has been much lower. (Image credit: Macduff Everton/Getty Images)

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Trust in the UK government has been badly dented

Instinct to reopen economy was right, but implementation has been fumbled

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When Rational Points Are Few and Far Between

BEAM program manager Ruthi Hortsch shares her love of Faltings's theorem — Read more on ScientificAmerican.com

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Bentley to cut quarter of workforce as UK car sector job losses hit 5,000

Chief executive says 'uncontrolled' Brexit risks 'compounding the coronavirus disaster'

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Hemlösheten ökar i Sverige

Antalet hemlösa i Sverige ökar. Viktiga orsaker är fattigdom och bristen på lägenheter. En trend är att allt fler kvinnor och personer med utländsk bakgrund blir hemlösa. Detta visar en ny kunskapsöversikt om hemlöshet av Forte. Hemlöshet är ett omfattande samhällsproblem i Sverige. Vi har i dag en högre andel hemlösa jämfört med våra nordiska grannländer; mer än dubbelt så många hemlösa per tuse

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To think like a dinosaur

Palaeontologists from St Petersburg University have been the first to study in detail the structure of the brain and blood vessels in the skull of the ankylosaur Bissektipelta archibaldi. It was a herbivorous dinosaur somewhat similar in appearance to a modern armadillo.

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Ekspert: Der skal mere fut i udfasning af naturgasfyr

PLUS. At komme af med gasfyrene er blandt de billigste klimavirkemidler – men der skal tages andre midler i brug, vurderer eksperter.

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Därför är det svårt att modellera smittan

I mitten av mars publicerade forskare vid Imperial College i London en simulering som visade att om Storbritannien inte vidtog några åtgärder skulle en halv miljon människor kunna dö i covid-19. Simuleringsrapporten bidrog starkt till att landet införde strängare restriktioner.

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The Lancet has made one of the biggest retractions in modern history. How could this happen?

The now retracted paper halted hydroxychloroquine trials. Studies like this determine how people live or die tomorrow The Lancet is one of the oldest and most respected medical journals in the world. Recently, they published an article on Covid patients receiving hydroxychloroquine with a dire conclusion: the drug increases heartbeat irregularities and decreases hospital survival rates. This resu

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UK zoos at risk of closure

The Covid crisis is putting the survival of one of the UK's largest zoos at risk.

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#84 Skam, skeder og smerter ved sex – del 2

Vi er nået til del 2 af temaet om skam i sundhedsvæsnet med udgangspunkt i lidelsen vulvodyni. Hør jordemoder Gry Senderovitz og professor i sexologi Christian Graugaard.

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Despite snags, Ethiopia scales up massive tree-planting campaign

Braving a heavy downpour, hundreds of farmers spent a full day planting 20,000 acacia seedlings on a barren hillside outside the town of Buee in southern Ethiopia last year.

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Gøgeunger har medfødt GPS

Forskere fra Københavns Universitet har i et nyt studie vist, at gøgeunger har en medfødt,…

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Heat-trapping carbon dioxide in air hits new record high

The world hit another new record high for heat-trapping carbon dioxide in the atmosphere, despite reduced emissions because of the coronavirus pandemic, scientists announced Thursday.

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Hårt liv som piga och dräng i början av 1600-talet

De skulle lyda och arbeta. Blev de slagna eller bestulna var flykt ett mer realistiskt alternativ än att dra husbonden inför rätta. I en ny avhandling om livet som piga och dräng i början av 1600-talet kartläggs tjänstehjonens arbetsuppgifter och relationen till husbönderna, men också vilka de umgicks med, slogs och bråkade med och vilka sexuella relationer de kunde upprätthålla. Det är en berätt

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Stem selv: Hvem skal være ny lægeformand?

Seks læger har meldt sig til valget om at blive formand for Lægeforeningen. Hvem vælger du?

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The biggest mystery: what it will take to trace the coronavirus source

Nature, Published online: 05 June 2020; doi:10.1038/d41586-020-01541-z SARS-CoV-2 came from an animal but finding which one will be tricky, as will laying to rest speculation of a lab escape.

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'The costs are too high': the scientist who wants lockdown lifted faster

Sunetra Gupta believes we may be underestimating how many people have fought off Covid-19 Coronavirus – latest updates See all our coronavirus coverage It was the moment the scientists veered off script. As ministers moved to ease the lockdown in late May, a handful of the government's advisers from Sage (the Scientific Advisory Group for Emergencies) went public with their fears. The virus was s

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Applying symptom tracking to COVID-19 outpatient care using famotidine

A patient-reported symptom tracking method used for patients with cancer has now been adapted for patients with COVID-19. The first clinical case series showed that famotidine may help COVID-19 patients with mild to moderately severe symptoms.

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Ancient DNA provides new insights into the early peopling of the Caribbean

According to a new study by an international team of researchers from the Caribbean, Europe and North America, the Caribbean was settled by several successive population dispersals that originated on the American mainland.

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Mangrove trees won't survive sea-level rise by 2050 if emissions aren't cut

Mangrove trees — valuable coastal ecosystems found in Florida and other warm climates – won't survive sea-level rise by 2050 if greenhouse gas emissions aren't reduced, according to a new study. Using sediment data from the last 10,000 years, an international team estimated the chances of mangrove survival based on rates of sea-level rise.

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Traumatic Brain Injury Severity in a Network Perspective: A Diffusion MRI Based Connectome Study

Scientific Reports, Published online: 04 June 2020; doi:10.1038/s41598-020-65948-4

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Sagittal en bloc resection of primary tumors in the thoracic and lumbar spine: feasibility, safety and outcome

Scientific Reports, Published online: 04 June 2020; doi:10.1038/s41598-020-65326-0

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Photos of the Week: Royal Ride, Shattered Glass, Road Bison

Swimming in Mallorca, mountain art in Switzerland, protests against racism and police brutality across the United States, a coronavirus recovery in Spain, face masks in Indonesia, fashion in Kenya, a well-covered dinosaur in Los Angeles, a rocket lifts astronauts to space from Florida, and much more

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Early-life education improves memory in old age — Especially for women

Education appears to protect older adults, especially women, against memory loss, according to a study by investigators at Georgetown University Medical Center, published in the journal Aging, Neuropsychology, and Cognition

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Reducing severe breathlessness and psychological trauma in COVID-19 ARDS survivors

A new paper published online in the Annals of the American Thoracic Society examines ventilation and medication strategies that can help avoid psychological trauma for severe COVID-19 survivors treated for acute respiratory distress syndrome (ARDS) with mechanical ventilation.

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France has won the R-number battle, but the COVID war rages on

A new study confirms that the lockdown in France successfully reduced the spread of COVID-19 with a seven-fold reduction in the R-number, the measurement of transmission rate. The researchers warn that restrictions should be lifted with caution because of the high risk of a second wave of infections; herd immunity is far from reached as only 4% of the French population have been infected by the en

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Praktiserende læge: "Det lader til, at kvinderne overtager faget"

Kompagniskaber vinder frem, fordi antallet af kvinder stiger i almen praksis, mener nyuddannede praktiserende læge Louise Traberg. Hun har for nyligt selv købt sig ind i en kompagniskabspraksis og er glad for sine to kompagnoner på tværs af køn.

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Fremtidens ­praktiserende ­læger er yngre kvinder i ­kompagniskaber

Praktiserende læger er yngre kvinder, og så nedsætter de sig oftere i kompagniskaber, viser nye tal. PLO-formand hilser udviklingen velkommen, men håber på en ligelig kønsfordeling.

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Ny generation af praktiserende læger prioriterer anderledes

Udviklingen i almen praksis med et voksende antal af kvinder, der i højere grad organiserer sig kompagniskaber, er et udtryk for et generationsskifte. Det mener forskningsleder Bibi Hølge-Hazelton, der peger på, at ønskerne er de samme blandt de yngre læger på tværs af køn.

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Gadelampe-effekten: Når ­forskning kun foregår i lysets skær

Vi mennesker har en naturlig tendens til at lede, hvor vi finder det lettest. Det gælder også forskere, der typisk studerer det, der er nemmest at observere. Derfor er det ekstra vigtigt med aktører, der støtter langsigtede videnskabelige projekter.

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Populisme eller uvidenhed?

Nu kan alle danskere blive testet for COVID-19. Det er mig en gåde, hvad der har fået ministeren til at gennemføre dette generøse, men ubrugelige tilbud, skriver praktiserende læge Joachim Nørmark.

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Fra superspecialist til alle lægers frontfigur

I fem år har han været det faglige fyrtårn i lægeverdenen som LVS-formand. Men nu vil Henrik Ullum være formand for Lægeforeningen.

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The economy won't snap back after Covid-19

Activities that were already marginal are likely to struggle to return

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European stocks rise as investors welcome fresh ECB stimulus

Brent crude above $40 after Opec agrees to weekend meeting to discuss output cuts

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Wealthy investors ride the storm

The rich have a more optimistic financial outlook than those who manage their money

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How to solve the Covid-19 business interruption mess with fewer lawyers

Companies should wait for key precedents to be set in their country before entering in disputes with insurers

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Har du spurgt, hvor din patient helst vil dø?

De fleste vil helst dø hjemme, og læger skal hjælpe med, at det kan ske ved, at samtalen om døden bliver en rutine, siger læge og chefkonsulent i Dansk Selskab for Patientsikkerhed, Ove Gaardboe. Han undrer sig over, store regionale forskelle for dødssteder, og mener, at praktiserende læger har et stort ansvar for at tage samtalen.

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Husk at prioritere innovationen og fremtiden

I denne uge er en stor del af Dagens Medicin dedikeret til at fortælle historien om, hvordan enorme ressourcer blive sat ind på at redde et lille barn, født med en ellers uhelbredelig sygdom, som kun kan reddes med en levertransplantation.

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Frederikshavn-læger gør noget særligt ved samtalen om døden

Lægehuset i Frederikshavn har systematiske indsatser på plejehjem, hvilket betyder, at størstedelen af de ældre i kommunen dør på plejehjem i stedet for på hospitalet. Det er den bedste løsning for både patienter og personale, siger overlæge.

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26-årig mor er levende donor for leversyg baby

Manglen på hjernedøde leverdonorer til de helt små børn med svær galdevejsatresi har fået Righospitalet til at genoptage sit program med levende donorer. Dagens Medicin har fulgt 14 måneder gamle Cleo, som er patient nummer to i det nye program. Hun fik et stykke lever af sin mor.

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»Vildt hvor meget Cleo er ­blomstret op på den korte tid«

Som mor og donor til 14-måneder gamle Cleo med svær galdevejsatresi har Sabine Nielsen tænkt meget over, om hun ved at pålægge sig selv en risikofyldt ­operation vil blive en dårlig mor for treårige Thea.

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Rio Tinto blasting a sacred Aboriginal site should make scientists ask 'am I being a good ancestor?' | Jared Field

Our universities fail stupendously when they don't teach ethical and moral responsibility What does it take to blow something up? My field, mathematics, is certainly useful. Computer science, and the numerical methods it allows, is handy. Several years of chemistry and physics are essential. Geology and operations management will go a long way too. Many other topics will also be helpful but hopef

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Børnelægen: »Cleo stod med det ene ben i graven«

Vibeke Brix Christensen var som børnelæge på Rigshospitalet med til at beslutte, at Cleo skulle have en ny lever. Livet svandt ind for det lille barn, hvis lever ikke kunne mere.

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Living donor-programmet stammer fra Asien

At transplantere et stykke lever fra en levende donor er oprindeligt en japansk opfindelse, som siden er slået igennem i hele Asien. Nogle hospitaler uden for Asien benytter også denne teknik, bla. i hollandske Groningen, som leverkirurg Nicolai Schultz har besøgt.

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Facelifts in vogue as South Korea adjusts to virus

Gangnam plastic surgeons cash in on social distancing that allows patients to recover in private

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Turkish logistics adjust to the strains of Covid-19

Pandemic creates headaches and opportunities for those moving goods from warehouse to market

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Consultants answer Covid-19 call but are they good value?

Troubleshooters have had successes, though prompt questions about efficiency and how contracts are awarded

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Metastudie: Ansigtmasker beskytter mod covid-19

PLUS. Danmark er et af kun to lande i EU, som ikke anbefaler eller kræver bred brug af værnemidler. Nu viser studie, at maskebrug kan stoppe raske fra at blive smittede.

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Trump Campaign Removes Space Video That Violated NASA Ad Rules

The president has tried to parlay space policy into an upbeat campaign issue for the 2020 election.

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Schizophrenia and Genome

submitted by /u/Small-Pocket-Library [link] [comments]

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The Atlantic Daily: America Already Knows How to Fix This

GETTY / ARSH RAZIUDDIN / THE ATLANTIC Police brutality is a decades-long problem, one that predates this administration. But President Trump made it worse, my colleague Adam Serwer argues in a sweeping new piece . He gave the police permission to be brutal. This administration rolled back Obama-era police reform. In 2017, Jeff Sessions, Trump's then-attorney general, ended the Justice Department'

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ASY1 acts as a dosage-dependent antagonist of telomere-led recombination and mediates crossover interference in Arabidopsis [Genetics]

During meiosis, interhomolog recombination produces crossovers and noncrossovers to create genetic diversity. Meiotic recombination frequency varies at multiple scales, with high subtelomeric recombination and suppressed centromeric recombination typical in many eukaryotes. During recombination, sister chromatids are tethered as loops to a polymerized chromosome axis, which, in plants, includes th

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Swarms of locusts threaten Indian livelihoods and food production

Worst outbreak in years heaps pressure on authorities struggling to manage coronavirus

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Research tackles hidden 'tablet overload' as COVID isolation fears grow

New research provides a roadmap to help the millions of older Britons struggling with 'shopping lists' of medication, as fears grow that the current coronavirus lockdown could be further isolating the most vulnerable.

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Authors Retract Hydroxychloroquine Study, Citing Concern Over Data

A paper suggesting hydroxychloroquine increases the risk of death for patients with COVID-19 has been retracted by three of its authors because they were not able to verify the data used in the study. (Image credit: GEORGE FREY/AFP via Getty Images)

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Watch a stunt athlete hit the autobahn (hard) on a bike

Sebastian "Satu" Kopke rides the pedal-controlled eRockit on Germany's famed Autobahn. (eRockit/) This story originally featured on Cycle Volta . Driving on Germany's Autobahn is a bucket-list experience for many an automotive enthusiast. But what about pedaling a two-wheeler on it? Hennigsdorf, Germany-based eRockit put the idea to the test recently, with German extreme stunt athlete Sebastian "

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Top U.S. scientists left out of White House selection of COVID-19 vaccine short list

Operation Warp Speed chooses largely unproven vaccine technologies for fast-tracking

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Coating made from eggs protects fresh produce

Eggs that would otherwise go to waste can become the base of an inexpensive coating to protect fruits and vegetables, researchers report. The micron-thick coating that solves problems both for the produce and its consumers, as well as for the environment. When researchers applied the coating to produce by spraying or dipping, it showed a remarkable ability to resist rotting for an extended period

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Here are 3 things white people can do right now to help #BLM

Protests around the world are demanding an end to police discrimination and violence against black citizens in America. Author and activist Dax-Devlon Ross offers advice on how white people can help during this moment. Ross's suggestions include thinking and voting locally, supporting black-owned businesses, and practicing self-reflection. You never forget a gun being pointed at your head. In 199

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Coronavirus live news: South Africa sees record jump in cases as New York protesters urged to get tested

Turkey announces weekend lockdown in 15 cities; Ebola drug endorsed as a coronavirus treatment in Australia ; US jobless claims pass 42 million. Follow the latest updates Governor Andrew Cuomo says protests could accelerate spread of coronavirus South Africa sees record jump in cases St Petersburg death tally casts doubt on Russian coronavirus figures Coronavirus latest: at a glance See all our c

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Extinctions in next 20 years may near 20th-century total

The loss of land-based animals is accelerating, researchers report. Their analysis of thousands of vertebrate species reveals that extinction rates are likely much faster than previously thought. The researchers call for immediate global action, such as a ban on the wildlife trade, to slow the sixth mass extinction. "When humanity exterminates populations and species of other creatures, it is saw

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