Search Posts

Nyheder2020oktober24

Tegn abonnement på BioNyt!

Vil du hjælpe med at finde nyheder? DO YOU WANT TO HELP FINDING SCIENCE NEWS? Email: bionyt@gmail.com Phone-sms: (45)21729908

New therapeutic approach against leukemia
Using an RNA molecule complex, researchers can prevent retention of cancer stem cell in their tumor supporting niche.
3d
Forskere opdager forsvunden kontinentalplade: Kan forklare gådefulde vulkaner
Efter at have skabt vulkanerne sank pladen ned i dybet.
3d
America of the 1930s saw thousands of people become Nazi
During the 1930s, thousands of Americans sympathized with the Nazis, holding huge rallies. The rallies were organized by the American German Bund, which wanted to spread Nazi ideology. Nazi supporters also organized summer camps for kids to teach them their values. Having radical fringe groups tearing at the seams of America is not a new phenomenon. Less than a 100 years ago, the Nazis were gathe
3d
3d
Research team discovers molecular processes in kidney cells that attract and feed COVID-19
What about the kidneys make them a hotspot for COVID-19's cytokine storm? A research team says it's the presence of a protein found on specialized renal transport cells.
3d
California Voters to Decide Future of Stem Cell Funding Agency
If approved, Proposition 14 would authorize the state to sell $5.5 billion in bonds to extend the life of CIRM, which funds stem cell research. The ballot measure has its critics.
3d
3d
3d
COVID's Other Toll: Unnecessary Tests and Huge Hospital Bills
They highlight one of the biggest problems in American health care — Read more on ScientificAmerican.com
3d
Lægemiddelstyrelsen efter 36 dødsfald efter vaccinationer i Sydkorea: »Vi er ikke skrækslagne, men vi følger det tæt«
En række dødsfald efter podning med influenzavaccine har skabt røre i Sydkorea og medført, at folk er usikre på, hvad der er op og ned. De sydkoreanske myndigheder har ikke fundet nogen relation mellem dødsfald og vaccinationer, og herhjemme maner Thomas Senderovitz fra Lægemiddelstyrelsen til besindighed.
3d
The coronavirus pandemic: FT Readers respond
Commenters discuss how they think the virus has been handled and share how they have been affected
3d
NASA-rumsonde støder på mystisk fænomen uden for solsystemet
Der burde være meget lidt "stof" i mørket udenfor solsystemet, men rumsonden finder store mængder.
3d
How to stop being a people pleaser
Do you find it hard to say no? Are you always trying to second guess what someone else wants you to do? It's time you learned to stop being so eager to please "Can you come to this meeting?" No. "Yes." "Are you free on Saturday night?" No, I'm watching Spiral . "Yes." Continue reading…
3d
This Week's Awesome Tech Stories From Around the Web (Through October 24)
AUGMENTED REALITY Forget AR Glasses. Augmented Reality Is Headed to Your Windshield Luke Dormehl | Digital Trends "…What Envisics has developed is a headset-free, in-car holography system that aims to transform the way we view the road. How? By giving your car an AR overhaul more in line with the kind of HUD technology you'd ordinarily find in a fighter jet or a commercial aircraft worth many mil
3d
What Genetic Tests Really Say About Your Cancer Risk
How to pick the best at-home DNA test for you — and what to do with the answers you get about your health.
3d
Chemists develop framework to enable efficient synthesis of 'information-dense' molecules
Scientists have developed a theoretical approach that could ease the process of making highly complex, compact molecules. Such molecules are often found in plants and other organisms, and many are considered desirable starting points for developing potential new drugs. But they also tend to be highly challenging for chemists to construct and modify in the lab–a process called synthesis.
3d
PTSD and alcohol abuse go hand-in-hand, but males and females exhibit symptoms differently
Through intricate experiments designed to account for sex-specific differences, scientists have zeroed-in on certain changes in the brain that may be responsible for driving alcohol abuse among people with PTSD. In studies with rodents, researchers found that males and females exhibit their own distinct symptoms and brain features of PTSD and alcohol use disorder. Such differences are not typicall
3d
Chemists develop framework to enable efficient synthesis of 'information-dense' molecules
Scientists have developed a theoretical approach that could ease the process of making highly complex, compact molecules. Such molecules are often found in plants and other organisms, and many are considered desirable starting points for developing potential new drugs. But they also tend to be highly challenging for chemists to construct and modify in the lab–a process called synthesis.
3d
Elkhorn coral actively fighting off diseases on reef
As the world enters a next wave of the ongoing COVID-19 pandemic, we are aware now more than ever of the importance of a healthy immune system to protect ourselves from disease. This is not only true for humans but corals too, which are in an ongoing battle to ward off deadly diseases spreading on a reef.
3d
Exploring the source of stars and planets in a laboratory
New computer simulation aims to verify a widely held but unproven theory of the source of celestial bodies.
3d
Did a Security Researcher Guess Trump's Twitter Password?
Plus: An Among Us spam attack, China's favorite vulnerabilities, and more of the week's top security news.
3d
There's No Turning Back on AI in the Military
In the digital arms race with China, the only thing worse than fearing AI itself is the fear of not having it at all.
3d
The iPhone 12 Finally Gets Magnets Right
Motorola's Moto Mods failed to pull off a long-lasting smartphone trend. But Apple's MagSafe series looks like it might actually stick.
3d
How the Racism Baked Into Technology Hurts Teens
Lunga Ntila Last month, Twitter users uncovered a disturbing example of bias on the platform: An image-detection algorithm designed to optimize photo previews was cropping out Black faces in favor of white ones. Twitter apologized for this botched algorithm, but the bug remains. Acts of technological racism might not always be so blatant, but they are largely unavoidable. Black defendants are mor
3d
Weekend reads: The researcher who publishes a paper every two days; "are publishers learning from their mistakes?"; overcoming COVID-19 misinformation
Before we present this week's Weekend Reads, a question: Do you enjoy our weekly roundup? If so, we could really use your help. Would you consider a tax-deductible donation to support Weekend Reads, and our daily work? Thanks in advance. The week at Retraction Watch featured: A journal that took six years to retract a paper. … Continue reading
3d
Skydrive tester flyvende drone-taxi
Drømmen om en flyvende bil er et par skridt tættere på at blive virkelighed.
3d
The Best Locks for Protecting Your Bike—or Ebike
The only thing better than buying a new bicycle is keeping it. We tested a bunch of bike locks and these are our picks—and some advice for using them.
3d
Russia's Laptev Sea Should Have Started to Freeze by Now
Normally, the 'birthplace of ice' freezes by late October. For the first time in recorded history, it hasn't. That could have knock-on effects across the Arctic.
3d
COVID-19 Herd Immunity Strategies Could Bring 'Untold Death and Suffering'
Why proposals to largely let the virus run its course—embraced by Donald Trump's administration and others—are a false promise — Read more on ScientificAmerican.com
3d
U.S. Finds 1st 'Murder Hornet' Nest In Washington State
Entomologists in Washington State have located the first ever nest of the Asian giant hornet in the U.S. They tracked the "murder hornet" to its nest by attaching it with a miniature radio tracker.
3d
Stämmer det: Dör människor för att vi ställer om klockan?
Kan tidsomställningen mellan vintertid och sommartid innebära hälsorisker – och i värsta fall att människor dör? Vi frågade sömnforskaren Torbjörn Åkerstedt, senior professor vid Karolinska institutet.
3d
Oncotarget: Evaluation of cellular alteration & inflammatory profile of cells
Oncotarget recently published "Evaluation of cellular alterations and inflammatory profile of mesothelial cells and/or neoplastic cells exposed to talc used for pleurodesis"
3d
Neil Ferguson: easing Covid rules for Christmas is 'political judgment'
The scientist whose modelling influenced the UK-wide lockdown says family meetups 'risk some transmission' Coronavirus – latest updates See all our coronavirus coverage The scientist whose modelling led to the original UK lockdown has said it would be a political judgment whether restrictions on households mixing should be relaxed over Christmas. Prof Neil Ferguson said policymakers would have to
3d
Drug companies shouldn't play favorites in granting access to experimental covid-19 treatments
In the past month, US President Donald Trump and former New Jersey governor Chris Christie were diagnosed with covid-19 and spent time in the hospital, just like tens of thousands of other Americans nearly every day since the pandemic began. But Trump and Christie were special cases. They received experimental covid-19 treatments that are not readily available to the general public. They have bot
3d
It's OK to Play One Game Forever
If you ignore new releases or your massive backlog to return to that one comfort game after a long day, don't feel bad about it. You're not alone.
3d
The 14 Best Weekend Deals on Cold Weather Gear, TVs, and More
Cozy up with our favorite discounts from Patagonia, Sony, Nintendo, and others.
3d
Donald Trump's Refugee Policy Is Bureaucratic Sadism
Donald Trump dishonors America in so many ways that it isn't possible to keep them all in mind and still remember to brush your teeth. For example, how often do you reflect on the fact that the Trump administration has all but ended the tradition of accepting refugees into this country? In the decades between the presidency of Jimmy Carter, who signed the Refugee Act of 1980, and that of Barack O
3d
Republicans Don't Know What to Do With Their Bad-Faith ACA Case
Updated at 4:37 p.m. ET on October 24, 2020. "I 'd like to terminate Obamacare," President Donald Trump said at Thursday night's debate. He said he hoped that the Supreme Court, flush with six conservative justices after Judge Amy Coney Barrett's likely confirmation, would take care of the job for him. "Now it's in court, because Obamacare is no good." Trump's argument is an awkward one, and not
3d
Higher Education Should Lead the Efforts to Reverse Structural Racism
The knee on the neck of George Floyd aggravated an American psyche already frayed by the pandemic and stay-at-home orders. Protesters from diverse backgrounds marched in the streets across the nation demanding change. Channeling the growing public and private support for meaningful change into action requires Americans, in every sector, to engage in difficult conversations, and to be honest about
3d
Osiris-Rex: Nasa probe risks losing asteroid sample after door jams
The Osiris-Rex spacecraft collected so much rock from asteroid Bennu that bits are leaking out.
3d
1931: M/F Heimdal har vundet alle automobilisters udelte tilfredshed
I utilfredshed med de trange forhold, høje priser og uregelmæssige afgange på Storebælt fik FDM i 1929 bygget en ren bilfærge. Den blev dog overtaget af DSB inden indsættelsen. Læs om den i Ingeniørens artikel fra 1931 om statsbanernes nyere skibsmateriel.
3d
Natteravn eller morgen-mus? De fleste af os er hverken A- eller B-menneske
Alligevel kan skift til vintertid påvirke dig.
3d
UnitedHealth Ships Flu Kits to Medicare Recipients
Under MedAdvantage plans, the major insurer is sending packages including Tamiflu and coronavirus tests to those considered especially vulnerable to Covid and the flu.
3d
Asteroid samples escaping from jammed NASA spacecraft
A NASA spacecraft is stuffed with so much asteroid rubble from this week's grab that it's jammed open and precious particles are drifting away in space, scientists said Friday.
3d
South America ravaged by unprecedented drought and fires
Under stress from a historic drought, large swathes of forest and wetlands in central South America known for their exceptional biodiversity have been ravaged by devastating fires.
3d
Galapagos sees record rise in penguins, flightless cormorants
The population of Galapagos penguins and flightless cormorants, two species endemic to the islands, has seen a record increase, study results released Friday showed.
3d
Galapagos sees record rise in penguins, flightless cormorants
The population of Galapagos penguins and flightless cormorants, two species endemic to the islands, has seen a record increase, study results released Friday showed.
3d
Daily briefing: Alarming delay in the annual freeze of Arctic sea ice
Nature, Published online: 23 October 2020; doi:10.1038/d41586-020-03010-z Sea ice in Siberia has not yet started freezing, how to map the 'magnificently complicated' brain and why COVID outbreaks look set to worsen this winter.
3d
Boris Johnson is learning that in politics you cannot simply 'follow the science' | David Runciman
The prime minister is trying to pretend that nakedly political decisions are driven by data. But almost no one buys it What happened to following the science? In the spring, when Boris Johnson and his scientific advisers were proceeding in lockstep, there was no disagreement about the necessity of shutting the country down. Now the government is coming to its own conclusions about what is needed,
3d
Intelligent kamerateknologi skal rense plasten før genanvendelse
PLUS. Aarhus Universitet har fået millionstøtte til et nyt forskningsprojekt, der skal udvikle ny sensorteknologi til avanceret identifikation og udsortering på polymerniveau sammen med Dansk Affaldsminimering, Plastix og Vestforbrænding.
3d
UK could be urged to keep windows open in effort to curb Covid-19
Scientists call for information campaign as evidence on role of poor ventilation mounts Coronavirus – latest updates See all our coronavirus coverage Britons could be urged to throw open the windows in an effort to keep coronavirus at bay as scientists call for a public information campaign to stress the importance of ventilation in reducing its spread. A paper by the Environmental and Modelling
4d
Queensland investigates Covid-19 strain on cargo ship after New Zealand alert
MV Sofrana Surville barred from docking after officials in New Zealand said crew members on departing cargo ship might have new strain Queensland health officials are working to determine the strain of Covid-19 infecting the crew of a cargo ship anchored off the Australian state's Sunshine Coast. The MV Sofrana Surville was blocked from docking in Brisbane after New Zealand warned it could be car
4d
Dramatiskt kring frön som krigsbyte
Ett världskrig rasade. Att föda trupperna – och tyska folket i det tusenåriga riket – var av strategisk vikt för nazisterna. Därför gjorde tyska forskare hemliga räder för att stjäla Rysslands fröbank, världens största samling av utsäde till härdiga grödor. Journalisten Jens Nordqvist berättar dramatiskt en udda historia i krigslitteraturen: den om fröer som strategisk resurs. Huvudpersoner är de
4d
Maktens stora öron
Smittspårningsappar som spårar varje rörelse hos en hel befolkning är ett sätt att bekämpa covid-19. Men tro inte att stater kommer att sluta använda den förmågan när pandemin är över. Övervakning som byggs upp under en kris tenderar att bli det nya normala. Det menar visselblåsaren Edward Snowden, som varnar för att covid-19 kommer att leda till att massövervakningen når en ny nivå i världen.
4d
Om skogsbrukets ekologi, ekonomi och filosofi
Ola Engelmarks bok Skogen på andra sidan hyggena är en bitvis filosofisk betraktelse av livet som skogsägare. Den innehåller också handfasta tips till den som vill bedriva ett skogsbruk som är ekologiskt, ekonomiskt och socialt hållbart. Den sistnämnda aspekten, social hållbarhet, är svårdefinierad och sällan diskuterad. Här gör författaren en stor insats tycker jag.
4d
Om snor, svett och tårar
Säg ordet "kroppsvätskor" och det är lätt att få kväljningar. Ändå är de så viktiga för oss. Dessutom har de alla en mycket intressant kemi. Ulf Ellervik berättar roliga anekdoter och vetenskapliga rön kring snor, svett och annat obehagligt i sin nya bok, Äckligt. 1 | Hur kom du på att du skulle skriva just den här boken?
4d
Varför är vi olyckliga?
När Lisen var fem år dog hennes mamma i spanska sjukan. Pappan var frånvarande så Lisen blev föräldralös. Hon växte upp med släktingar, i relativ fattigdom, och i ett Sverige med betydligt fler prövningar än vi är vana vid i dag. Ändå levde hon ett långt och förhållandevis lyckligt liv. Lisens barnbarn blev psykiater, professor vid Karolinska institutet och nu debutförfattare.
4d
Han lyfter fram ingenjörerna
Sedan 1800-talet har ingenjörerna banat väg för det moderna samhället genom uppfinningar som det sfäriska kullagret, Tetrapak och dynamit. Men bakom de stora snillena finns andra hårt arbetande ingenjörer som hamnat i historiens skugga. Det vill historikern Gunnar Wetterberg ändra på i sin nya bok Ingenjörerna. 1 | Hur kom det sig att du skrev boken?
4d
Vendetta till demokratins försvar
På journalisten, författaren och Pulitzerprisvinnaren Anne Applebaums och hennes makes nyårsfest hemma i nordvästra Polen minglar politiker, statstjänstemän och journalister från när och fjärran. Året är 1999. De inbjudna är liberaler, konservativa och anti-kommunister – "den allmänna kategori som polackerna kallar högern". Tjugo år senare byter Applebaum trottoar för att undvika vissa av dem som
4d
Cause of Alzheimer's disease traced to mutation in common enzyme
Researchers from Tokyo Metropolitan University have discovered a new mechanism by which clumps of tau protein are created in the brain, killing brain cells and causing Alzheimer's disease. A specific mutation to an enzyme called MARK4 changed the properties of tau, usually an important part of the skeletal structure of cells, making it more likely to aggregate, and more insoluble. Getting to grips
4d
Åldrande schimpanser behåller sina bästa vänner
Äldre schimpanshanar umgås helst med gamla nära vänner, något som yngre schimpanser verkar bli imponerade av, visar forskning från nationalparken Kibale i Uganda.
4d
Media alert: new articles in the CRISPR Journal
The CRISPR Journal announces the publication of its October 2020 issue.
4d
NASA's OSIRIS-REx spacecraft collects significant amount of asteroid
Two days after touching down on asteroid Bennu, NASA's OSIRIS-REx mission team received on Thursday, Oct. 22, images that confirm the spacecraft has collected more than enough material to meet one of its main mission requirements — acquiring at least 2 ounces (60 grams) of the asteroid's surface material.
4d
Coronavirus vaccine final-stage testing to restart in US
AstraZeneca and Johnson & Johnson get go-ahead from Food and Drug Administration after pausing studies when volunteers became ill Two drugmakers have announced the resumption of US testing of their Covid-19 vaccine candidates. Testing of AstraZeneca's vaccine candidate had been halted since early September , while Johnson & Johnson's vaccine study was paused at the beginning of last week . Each c
4d
Insights into bacterial cell division from a structure of EnvC bound to the FtsX periplasmic domain [Microbiology]
FtsEX is a bacterial ABC transporter that regulates the activity of periplasmic peptidoglycan amidases via its interaction with the murein hydrolase activator, EnvC. In Escherichia coli, FtsEX is required to separate daughter cells after cell division and for viability in low-osmolarity media. Both the ATPase activity of FtsEX and its…
4d
Improving the taxonomy of fossil pollen using convolutional neural networks and superresolution microscopy [Biophysics and Computational Biology]
Taxonomic resolution is a major challenge in palynology, largely limiting the ecological and evolutionary interpretations possible with deep-time fossil pollen data. We present an approach for fossil pollen analysis that uses optical superresolution microscopy and machine learning to create a quantitative and higher throughput workflow for producing palynological identifications and…
4d
The shrimp nephrocomplex serves as a major portal of pathogen entry and is involved in the molting process [Microbiology]
Viruses, such as white spot syndrome virus, and bacteria, such as Vibrio species, wreak havoc in shrimp aquaculture [C. M. Escobedo-Bonilla et al., J. Fish. Dis. 31, 1–18 (2008)]. As the main portal of entry for shrimp-related pathogens remain unclear, infectious diseases are difficult to prevent and control. Because the…
4d
Simple transformations capture auditory input to cortex [Neuroscience]
Sounds are processed by the ear and central auditory pathway. These processing steps are biologically complex, and many aspects of the transformation from sound waveforms to cortical response remain unclear. To understand this transformation, we combined models of the auditory periphery with various encoding models to predict auditory cortical responses…
4d
The odorant receptor OR2W3 on airway smooth muscle evokes bronchodilation via a cooperative chemosensory tradeoff between TMEM16A and CFTR [Physiology]
The recent discovery of sensory (tastant and odorant) G protein-coupled receptors on the smooth muscle of human bronchi suggests unappreciated therapeutic targets in the management of obstructive lung diseases. Here we have characterized the effects of a wide range of volatile odorants on the contractile state of airway smooth muscle…
4d
HLA tapasin independence: broader peptide repertoire and HIV control [Immunology and Inflammation]
Human leukocyte antigen (HLA) class I allotypes vary in their ability to present peptides in the absence of tapasin, an essential component of the peptide loading complex. We quantified tapasin dependence of all allotypes that are common in European and African Americans (n = 97), which revealed a broad continuum…
4d
Multiphase magnetism in Yb2Ti2O7 [Physics]
We use neutron scattering to show that ferromagnetism and antiferromagnetism coexist in the low T state of the pyrochlore quantum magnet Yb2Ti2O7. While magnetic Bragg peaks evidence long-range static ferromagnetic order, inelastic scattering shows that short-range correlated antiferromagnetism is also present. Small-angle neutron scattering provides direct evidence for mesoscale magnetic…
4d
Nearly free surface silanols are the critical molecular moieties that initiate the toxicity of silica particles [Immunology and Inflammation]
Inhalation of silica particles can induce inflammatory lung reactions that lead to silicosis and/or lung cancer when the particles are biopersistent. This toxic activity of silica dusts is extremely variable depending on their source and preparation methods. The exact molecular moiety that explains and predicts this variable toxicity of silica…
4d
SARS-CoV-2 Orf6 hijacks Nup98 to block STAT nuclear import and antagonize interferon signaling [Microbiology]
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the ongoing coronavirus disease 2019 (COVID-19) pandemic that is a serious global health problem. Evasion of IFN-mediated antiviral signaling is a common defense strategy that pathogenic viruses use to replicate and propagate in their host. In this study,…
4d
Targeted CRISPR screening identifies PRMT5 as synthetic lethality combinatorial target with gemcitabine in pancreatic cancer cells [Cell Biology]
Pancreatic ductal adenocarcinoma (PDAC) remains one of the most challenging cancers to treat. Due to the asymptomatic nature of the disease and lack of curative treatment modalities, the 5-y survival rate of PDAC patients is one of the lowest of any cancer type. The recurrent genetic alterations in PDAC are…
4d
PtdIns(3,4,5)P3-dependent Rac exchanger 1 (P-Rex1) promotes mammary tumor initiation and metastasis [Cell Biology]
The Rac-GEF, P-Rex1, activates Rac1 signaling downstream of G protein-coupled receptors and PI3K. Increased P-Rex1 expression promotes melanoma progression; however, its role in breast cancer is complex, with differing reports of the effect of its expression on disease outcome. To address this we analyzed human databases, undertook gene array expression…
4d
GPR56/ADGRG1 is a platelet collagen-responsive GPCR and hemostatic sensor of shear force [Medical Sciences]
Circulating platelets roll along exposed collagen at vessel injury sites and respond with filipodia protrusion, shape change, and surface area expansion to facilitate platelet adhesion and plug formation. Various glycoproteins were considered to be both collagen responders and mediators of platelet adhesion, yet the signaling kinetics emanating from these receptors…
4d
The human quest for discovering mathematical beauty in the arts [Commentaries]
In the words of the twentieth-century British mathematician G. H. Hardy, "the human function is to 'discover or observe' mathematics" (1). For centuries, starting from the ancient Greeks, mankind has hunted for beauty and order in arts and in nature. This quest for mathematical beauty has led to the discovery…
4d
Murder Hornet Nest, First in U.S., Is Removed in Washington State
Officials vacuumed the nest in Blaine, Wash., on Saturday before the voracious Asian giant hornets could multiply and lay waste to bees.
4d
4d
Acorn Woodpeckers Fight Long, Bloody Territorial Wars
More than 40 of the birds, in coalitions of three or four, may fight for days over oak trees in which to store their acorns.
4d
4d
What is the source of one's thoughts/behavior/tendencies/morality?
What is the source of one's thoughts, behavior, moral code? I know those 3 could be a diverse topic in of itself. But imagine a child, he starts to behave or think and express moral actions. Is this purely external (social, environment, learned behavior, observed from surroundings)? Or is there some kind of predisposition, embedded in the psyche or mind? If so, where does that come from? Is it sc
4d
The Atlantic Daily: The Case Against Donald Trump
Every weekday evening, our editors guide you through the biggest stories of the day, help you discover new ideas, and surprise you with moments of delight. Subscribe to get this delivered to your inbox . THE ATLANTIC "Spectacularly obvious." That's what our editor in chief, Jeffrey Goldberg, writing on behalf of The Atlantic 's editors, called the choice voters face this November. "Two men are ru
4d

Leave a Reply