The morphological compatibility between flowers and insects was given in the famous textbook example of Darwin's orchids and hawkmoths. As in this example, many studies have shown that geographical variations in flower size match the size of insects in each region. In other words, studies have shown "flower-sized regional adaptation" in which large flowers evolve in areas pollinated by large insec
A neurologic pathway by which non-damaging but high frequency brain impact blunts normal brain function and causes long-term problems with learning and memory has been identified. The finding suggests that tailored drug therapy can be designed and developed to reactivate and normalize cognitive function, say neuroscientists at Georgetown University Medical Center.
Last year, a guy in a jet suit glided up a mountain to trial whether jet suits could be a useful tool for emergency responders in wilderness areas. It went pretty well; the jet suit-clad pilot reached the mountainside location in 90 seconds, as compared to the 25 minutes it would have taken an emergency responder on foot. Now the same suit is being trialed by the British Royal Marines as a possib
The research group led by Gianni Gallello, from the Department of Prehistory, Archaeology and Ancient History of the University of Valencia, has used the analysis of rare earth elements for the first time to find human activity in a prehistoric cave. Through the analysis of the archaeological strata, with chemical methods, it has been possible to interpret the occupation and uses of the Cocina Cav
Physics researchers discover that assembling 2D materials into a 3D arrangement does not just result in 'thicker' 2D materials but instead produces entirely new materials. The nanomesh technologically is simple to produce and offers tunable material properties to meet the demands of future applications. The team's next goal is to use the nanomesh on Silicon (Si) waveguides to develop quantum optic
Blocking the fat-busting enzyme lipoxygenase with a synthetic inhibitor throws the immune system's innate inflammatory response out of whack, compromising cardiac repair during acute heart failure. The preclinical study by University of South Florida Health researchers helps explain one more piece of the puzzle about the important role of immune-mediated acute inflammation and its clearance – both
A novel approach to immunotherapy design could pave the way for new treatments for people with an aggressive form of brain cancer called glioblastoma. Using specifically designed receptors, researchers were able to completely clear brain cancer tumours in preclinical models, using chimeric antigen receptor (CAR) T cell therapy. Published today in Clinical & Translational Immunology and led by Asso
Nature, Published online: 10 May 2021; doi:10.1038/d41586-021-01254-x Kehinde Apara draws on artificial intelligence and her own family background to source flora for her work at a California bioprospecting company.
The climate and environment are always changing, but this statement is not that meaningful unless you put it into the perspective of timescale. Over very short timescales, a few years, climate is extremely stable. Over very long timescales, millions of years, climate can change dramatically, turning lush rainforests into deserts. Over hundreds of years the climate has been relatively stable, exce
The inner ear of an ancient reptile offers a promising entry point to two particular phenomena: how dinosaurs interacted with each other and how they began to fly. According to a new study, the shape of the inner ear offers reliable signs as to whether an animal soared gracefully through the air, flew only fitfully, walked on the ground, or sometimes went swimming. In some cases, the inner ear ev
A research team led by Prof. LI Chuanfeng and Prof. ZHOU Zongquan from University of Science and Technology of China extended the storage time of the optical memories to over one hour. It broke the record of one minute achieved by German researchers in 2013, and made a great stride towards the application of quantum memories.
An international team led by researchers from the Xinjiang Institute of Ecology and Geography (XIEG) of the Chinese Academy of Sciences and the University of Geneva has found that flash floods may triple across the Earth's "Third Pole" in response to ongoing climate change.
Computer scientists at the University of California San Diego have developed a more accurate navigation system that will allow robots to better negotiate busy clinical environments in general and emergency departments more specifically. The researchers have also developed a dataset of open source videos to help train robotic navigation systems in the future. The team detail their findings in a pap
A Flinders University researcher has finally fathomed why large numbers of killer whales gather at a single main location off the Western Australian southern coastline every summer. In a new paper published in Deep Sea Research, physical oceanographer Associate Professor Jochen Kampf describes the conditions which have produced this ecological natural wonder of orcas migrating to the continental s
A team of researchers recalculated Dunbar's number using his original methods and better data. Their estimates were as high as 520 and were stretched over a wide enough range as to be nearly useless. The authors suggest that the method used to calculate the number of friends a person can have is also theoretically unsound. Since 1992, people have been talking about "Dunbar's number," the supposed
Currently, we are striving to curb the spread of COVID-19. While large-scale restrictions can hinder the virus, accurate and rapid diagnostic testing can help health services to better monitor and contain the virus. For this, suitable test devices are needed, such as those based on lab-on-chip technologies where test samples are mixed with detection molecules that bind to the virus and then emit a
Despite the rapid and significant changes in consumption patterns witnessed during the initial months of the COVID-19 pandemic, Japanese households maintained their normal levels of greenhouse gas emissions. The "anthropause"—reduction of human activity due to the pandemic—made headlines last summer, but factory shutdowns and broken global supply chains did not translate into the adoption of eco-f
End-of-life circuit boards, certain magnets in disc drives and electric vehicles, EV and other special battery types, and fluorescent lamps are among several electrical and electronic products containing critical raw materials (CRMs), the recycling of which should be made law, says a new UN-backed report funded by the EU.
There has been much debate recently about the way women who work in our federal parliament are treated. This discussion has highlighted that society continues to place very different values on the way women and men behave.
Nature, Published online: 07 May 2021; doi:10.1038/d41586-021-01269-4 Evidence from Qatar’s second wave indicates that vaccines can stop the worrying B.1.1.7 and B.1.351 variants. Plus, the earliest known human burial in Africa and tiny drums demonstrate quantum entanglement in a big way.
To better understand how and where groundwater is recharged on Hawaiʻi Island, a team of earth and atmospheric scientists from the University of Hawai'i at Mānoa looked to the source—rainfall. In a published study, the team reported a time-series of rainfall data which highlights that extreme events, such as volcanic eruptions and hurricanes, can affect the chemistry of precipitation.
In states such as California and Florida, the $3 billion orange and citrus industry is big business. More than six in ten Americans drop oranges into their grocery carts. And when they peel that orange or drink a glass of juice, they want it to taste sweet.
ZnP-coated wheat bait is the only registered in-crop rodenticide for the management of mice damage in broad-scale agriculture in Australia. The new Australian Pesticides and Veterinary Authority (APVMA) emergency use permit increases the concentration of zinc phosphide active per wheat grain from 25 mg/kilogram to 50 mg/kg.
A traditional Ugandan cloth that uses tree bark to make sustainable textiles could be used to treat skin wounds after new research shows it has antimicrobial properties to fight against tough infections such as MRSA.
A research team from the Skoltech Center for Design, Manufacturing and Materials (CDMM) has studied the effects of processing additives—aluminum hydroxide and zinc stearate—on the polymerization kinetics of thermosets used in pultrusion. The research was published in the Journal of Composite Materials.
When the SARS-CoV-2 virus mutates, this initially only means that there is a change in its genetic blueprint. The mutation may lead, for example, to an amino acid being exchanged at a particular site in a viral protein. In order to quickly assess the effect of this change, a three-dimensional image of the viral protein is extremely helpful. This is because it shows whether the switch in amino acid
För okunnig att inse sin egen begränsning Socialpsykologerna David Dunning och Justin Kruger publicerade 1999 en uppmärksammad studie kallad “Unskilled and Unaware of It: How Difficulties in Recognizing One’s Own … Continued Inlägget dök först upp på Vetenskap och Folkbildning .
Det finns ett samband mellan ägarens personlighet och stressnivån hos hunden. Olika hundraser påverkas dock olika mycket. Raser av urhundstyp påverkas minst medan vallande hundar påverkas mest. Någonstans i mitten hamnar jakthundarna. Forskare vid Linköpings universitet har undersökt om hundars stressnivåer påverkas av människorna som hundarna bor ihop med. Stressnivåerna över flera månader kan a
Kan det leda till ökad integration och bättre studieresultat att sprida ut elever från en stadsdel på flera olika skolor? Den idén låg bakom beslutet att stänga en högstadieskola i Örebro 2017. Nu har forskare studerat effekterna. Forskare vid Örebro universitet är klara med sin rapport om hur det gått för högstadieelever från stadsdelen Vivalla i Örebro som flyttats till andra skolor i kommunen.
The light-emitting diode (LED) has been quietly leading a revolution in how we spend our days and nights by offering cheap, easily controllable light. They’re so cost-efficient and powerful, they’ve even been forcing other lightbulbs out of the market . And there’s no better demonstration of why than with this minimalist corner floor lamp . Older lamps generally use either electrical resistance o
Pojkar med fetma löper större risk att drabbas av depressiva symtom, men inte flickor. Däremot är mobbning en stor riskfaktor för depressiva symtom hos både pojkar och flickor. – Syftet med vår studie var att undersöka kopplingen mellan kroppsmasseindex, det vill säga BMI, och depressiva symtom och titta närmare på om utsatthet för mobbning påverkar det här sambandet över tid. Vi ville också unde
For so many Americans, “history isn’t the story of what happened; it is just the story they want to believe. It is not a public story we all share, but an intimate one, passed down like an heirloom, that shapes their sense of who they are. Confederate history is family history, history as a eulogy, in which loyalty takes precedence over truth.” In “ The War on Nostalgia ,” published online today
PLUS. Kommunernes skolecentre laver det samme stykke arbejde 98 gange, når de udarbejder risikovurderinger og databehandleraftaler for de samme systemer. Hvorfor ikke centralisere dele af GDPR-arbejdet, spørger de.
Over the past few years, highly publicized lawsuits have raised a potent question: When, precisely, can someone be considered brain dead? Even among physicians there is disagreement about what constitutes brain death, and hospitals across the country have different protocols in place for making a diagnosis.
Nature Communications, Published online: 10 May 2021; doi:10.1038/s41467-021-22725-9 Common mitigation measures gradually inhibit the spread of infectious diseases, yielding smooth transitions to large-scale epidemics. As Scarselli et al. show, limited testing may radically change the transition to include jumps, potentially resulting in unforseen, accelerated growth of case numbers.
Nature Communications, Published online: 10 May 2021; doi:10.1038/s41467-021-22728-6 Conversion of an external angular momentum, for example, from mechanical rotation or light into ferromagnetic moment has a long history. Here, Sasaki et al. demonstrate the conversion of phonon angular momentum, in ferromagnetic moment, potentially allowing for new types of control for spintronics.
Nature Communications, Published online: 10 May 2021; doi:10.1038/s41467-021-22718-8 It is currently challenging to mechanically assess 3D specimens without manual handling. Here the authors combine a micro-force sensor and an acoustically controlled manipulation device to enable rotation of samples while assessing mechanical properties at the chosen region.
Nature Communications, Published online: 10 May 2021; doi:10.1038/s41467-021-22676-1 The lengthy time in establishing patient-derived organoids(PDOs) hampers the implementation of PDO-based drug sensitivity tests in clinics. Here, the authors show a microwell array-based method to predict patient’s responses to anti-cancer therapies in a week using lung cancer organoids.
Nature Communications, Published online: 10 May 2021; doi:10.1038/s41467-021-22744-6 Repeated head impact exposure can cause memory and behavioural impairments but the physiological changes in the brain are not well understood. Here, the authors reveal synaptic adaptations as a potential mechanism for early abnormal behavioural events observed after mild and high-frequency head impact.
Nature Communications, Published online: 10 May 2021; doi:10.1038/s41467-021-22600-7 Antiskyrmions are topological spin textures with negative vorticity. Like skyrmions, they have considerable technological promise, but have only been stabilised in Heusler compounds. Here, Heigl et al. succeed in stabilising first and second order antiskyrmions in a new class of materials.
Nature Communications, Published online: 10 May 2021; doi:10.1038/s41467-021-22457-w Forecasts of COVID-19 mortality have been critical inputs into a range of policies, and decision-makers need information about their predictive performance. Here, the authors gather a panel of global epidemiological models and assess their predictive performance across time and space.
Nature, Published online: 10 May 2021; doi:10.1038/d41586-021-01234-1 Wastewater tracking was used before the pandemic to monitor for polio and illicit drug use, but interest in the field and its applications has now ballooned.
A research group led by Dr. Hideyuki Kobayashi at Toho University Omori Medical Center in Tokyo developed an AI-assisted image classifier that provides scores for histological testis images of patients with azoospermia. The objective of Dr. Kobayashi, a urologist, was to create an easy-to-use method of pathological examination for the daily clinical practice setting. With it, testis images could b
Researchers at the IST Austria led by Björn Hof reports that a small difference in epidemic mitigation levels can cause a discontinuous jump in infection numbers. The researchers show that limits in testing and contact tracing are responsible for this sudden change in the epidemic outcome. Testing followed up by contact tracing is extremely efficient in slowing down epidemics, however, once their
Low levels of serotonin in the brain are seen as a possible cause of depression and many antidepressants act by blocking a protein that transports serotonin away from the nerve cells. A brain imaging study at Karolinska Institutet now shows that the average level of the serotonin transporter increased in a group of 17 individuals who recovered from depression after cognitive behavioural therapy. T
In a small study, 82% of the college athletes with COVID-19 had symptoms, of which the majority were mild and did not require treatment.Further screening via cardiac MRI of the 4% of athletes identified with heart abnormalities found no heart damage or inflammation.All athletes resumed regular training and competition without difficulty after recovering from COVID-19.
First-phase ejection fraction, a possible indicator of heart failure, is a strong predictor of survival in hospitalized COVID-19 patients.Hospitalized patients who had impaired first-phase ejection fraction were nearly 5 times more likely to die from COVID-19 compared to patients with normal first-phase ejection fraction.
Sjukdomen irritable bowel syndrome, IBS, ger magsmärtor och avvikande avföringsvanor (se ruta). Uppåt var tionde person i västvärlden beräknas vara drabbad, men varför sjukdomen uppstår är oklart. – Vi tror att det delvis handlar om vad som sker i mikromiljön i tarmen, ett samspel mellan mat, tarmbakterier och immunförsvaret, säger Magnus Simrén, professor vid Göteborgs universitet och läkare vid
Physics researchers at the University of Bath discover that assembling 2D materials into a 3D arrangement does not just result in 'thicker' 2D materials but instead produces entirely new materials. The nanomesh technologically pioneered at Bath is simple to produce and offers tunable material properties to meet the demands of future applications. The team's next goal is to use the nanomesh on Sili
I had a discussion about human enhancement some months ago, and this one guy explained to me about how we could potentially already have scifi level technology if the demand for cybernetics was higher? Is all of this true; " Human enhancement? You mean, like improved vision, 24/7 on-person access to the web, cybernetic limb replacements (mind controlled and with a sense of touch), stuff like that
Att anpassa hälsofrämjande insatser på arbetsplatsen ger, trots en stressad arbetsvardag, en ökad självupplevd hälsa hos medarbetare. Det framkommer i Lina Ejlertssons avhandlingsarbete där hon undersökt arbetsmiljön inom primärvården.
Prof. Jelinek, who is also BGUs vice president of Research & Development and a member of the Ilse Katz Institute for Nanoscale Science and Technology explained, "The tweezers are just like your home tweezers but a million times smaller, and instead of plucking hairs they attack fibers of the bacteria's biofilm." By doing that they break the biofilm, making it more vulnerable to human immune defens
In a commentary, backed by Professor Chris Whitty, Chief Medical Officer and co-lead of the National Institute for Health Research, experts are calling for targets for mental health in order to meet the healthcare challenges of the next decade.
The operator, Colonial Pipeline, said it had halted systems for its 5,500 miles of pipeline after being hit by a ransomware attack. https://www.nytimes.com/2021/05/08/us/politics/cyberattack-colonial-pipeline.html submitted by /u/Double_Snow2314 [link] [comments]
I’m Rob Thomas, and I lead Cloud Software and AI at IBM. Ask me about AI and automation. Let’s discuss what everyone gets wrong. Why is data so difficult to get right? How should leaders leverage automation and artificial intelligence to change the way that work gets done in an organization? I am exploring this subject at Think 2021 with our customers on May 11 and invite you to hear their experi
I don't have the answer to this question but I thought it would make for some really interesting discussion. I saw a statistic a while back which indicated that in the U.S. significantly more people were afraid of job loss due to automation, and Andrew Yang based much of his presidential campaign on that concern. But in some other countries, Sweden was cited specifically, people are much less sca
New research presented at this year's European Congress on Obesity (held online, 10-13 May) finds evidence that structures called inflammasomes (a part of the innate immune system that helps to regulate inflammation) could play an important role in the development of obesity-associated colon cancer.
A study of more than 173,000 women in Denmark, presented at the European Congress on Obesity (ECO) held online this year, suggests that girls with a higher body mass index (BMI) during childhood are less likely than their peers with a lower BMI to develop breast cancer as adults, both before and after the menopause.
Obesity increases the risk of developing 10 of the most common cancers, regardless of how it is measured, according to a study of more than 400,000 adults in the UK, being presented at The European Congress on Obesity (ECO) held online this year.
New research being presented at The European Congress on Obesity (ECO) held online this year, suggests that a measure of body shape should be used alongside body mass index (BMI) to help determine the risk of obesity-related cancers.
New research being presented at the European Congress on Obesity (ECO) held online this year, suggests that among girls a low body mass index (BMI) during childhood indicates a higher risk of developing anorexia nervosa as young adults, whereas a high BMI or overweight in childhood indicates a higher risk of bulimia nervosa.
Att massplantera träd har presenterats som en klimatlösning för att minska koldioxid i atmosfären. Men svensk, ännu opublicerad, forskning visar att det kan ta flera decennier innan ny skog ger effekt. – I Mellansverige kan det ta 20-30 år efter plantering på ett kalhygge innan det betraktas som en kolsänka, säger forskaren Achim Grelle.
Hey all, I am new to the whole cog sci endeavour so I am not aware of any efforts of seeing whether some theories concerning knowing have any empirical evidence. I have in mind concepts like reflection, activity of thinking, spontaneity and so on. Would you guys have anything to recommend that tries to establish a link between what these concepts predict and evidence? submitted by /u/philolover7
Zeno sent his arrow flying endlessly from point to point along its arc to make a point about eternity: getting there is tricky. That’s what I think anyway, as snowflakes stall in the morning’s freezing air like seed fluff reluctant to drop anchor in the ice. I’m watching that tentative descent though I’m in motion and counter-motion even as I follow my pen’s blue notes and think I’m not— not doin
Photo Illustrations by Tabitha Soren Tabitha Soren documented the months following the birth of her third child, in 2006, with the help of a digital camera mounted in her bedroom and operated by remote. In her new series, Motherload, Soren layers together the resulting images. This article was published online on May 9, 2021. I was excited about having a third child, but dreading the first year.
Photoshop is so ubiquitous, and so good at subtly changing photos in the right hands, that Adobe is training computers to spot Photoshopped faces . That’s just one piece of Adobe’s Creative Cloud, however, which offers a suite for editing video, designing documents, creating visual effects, and much, much more. Learning how to use them can give your career a boost or open the door to an entirely
PLUS. Arbejdsgiverne stiller ikke krav om en MBA, men uddannelsen sender et positivt signal om vilje til at udvikle sig og håndtere et stort arbejdspres. Og giver et solidt teoretisk fundament, siger headhunteren, udbyderen og forskeren.
The latest generation of personal alcohol breath testing devices pair with smartphones. While some of these devices were found to be relatively accurate, others may mislead users into thinking that they are fit to drive, according to a new study from Penn Medicine.
I did not write the book Microtrends , by Mark Penn, and I am in no way affiliated, but I would like to recommend it as a way of seeing into the future. True, the book is from 2007, but it does not seem to be dated in any way. The book looks at all sorts of different data over a period of time to see if the see any trends that might reach into the future. Examples: The average number of hours we
Hi all, I was wondering is someone could help point me to academic literature on learning based on 'deconstruction of problems into smaller, mutually exclusive parts, to understand the entire system". This might sound esoteric, but I believe its kind of similar to PBL.. my queries on google are not working well. Anyone have any idea for this pedology? submitted by /u/PhiloSophia2020 [link] [comme
Hello! I am an aspiring cognitive neuroscientist (hopefully working up to PhD) and have recently applied and been admitted to Master's programs in both Germany and Italy. I am having difficulty deciding which to attend, so I was hoping for some advice! In Germany, the program is "Neuro-cognitive Psychology" at the Ludwig Maximilian University of Munich. It is a very prestigious and selective prog
A study presented at this year's European Congress on Obesity (held online, 10-13 May) supports recommendations to avoid pregnancy for 12 months after bariatric (obesity) surgery due to an association with adverse outcomes in pregnancy including an elevated risk of preterm birth.
Therapeutics strategies that target cellular senescence. Thread 🧵 ⬇️ 1) What they do? They can work by killing senescent cells 2) How so? By Inhibiting the proinflammatory secretory phenotype of senescent cells (senomorphics) or by activating our endogenous senolytic systems (immune surveillance). 3) But what even are senescent cells? Senescent cells are cells which have suffered from – -Stress
Sleep disorders are associated with significantly higher rates of health care utilization including more doctors visits and prescriptions, placing an additional $94.9 billion in costs each year to the U.S. Health care system.
A bacterial protein helps to stop transcription — the process of making RNA copies of DNA to carry out the functions of the cell — by causing the cellular machinery that transcribes the DNA to pause at the appropriate spots in the genome.
A new study challenges the idea that gray matter (the neurons that form the cerebral cortex) is more important than white matter (the myelin covered axons that physically connect neuronal regions) when it comes to cognitive health and function. The findings may help neurologists better predict the long-term effects of strokes and other forms of traumatic brain injury.
RNA-based drugs may change the standard of care for many diseases, making personalized medicine a reality. So far these cost-effective, easy-to-manufacture drugs haven't been very useful in treating brain tumors and other brain disease. But a team has shown that a combination of ultrasound and RNA-loaded nanoparticles can temporarily open the protective blood-brain barrier, allowing the delivery o
Cells talk to each other to coordinate nutrition, waste removal, energy use, and, in some cases, disease progression. The cells that line the surfaces of organs or specific tissues, called epithelial cells, appear to speak two different languages – one for either side of the cell, according to a new study.
Depressive symptoms are more common in teenage girls than in their male peers. However, boys' mental health appears to be affected more if they suffer from obesity. Irrespective of gender, bullying is a considerably greater risk factor than overweight for developing depressive symptoms.
Coral bleaching, which is becoming stronger and more frequent due to heat stress, has already wiped out corals at many locations globally. With the help of a microbiome-targeting strategy, it could become feasible to help protect corals from heat stress.
Currently I'm doing my bachelors in computer science but have an interest in artificial intelligence/neural networks and cognitive neuroscience I'm confused as to what field should i choose for my Master's as i want to pursue something that relates artificial intelligence and cognitive neuroscience if that makes any sense submitted by /u/substance_99 [link] [comments]
BioNyt Videnskabens Verden (www.bionyt.dk) er Danmarks ældste populærvidenskabelige tidsskrift for naturvidenskab. Det er det eneste blad af sin art i Danmark, som er helliget international forskning inden for livsvidenskaberne.
Bladet bringer aktuelle, spændende forskningsnyheder inden for biologi, medicin og andre naturvidenskabelige områder som f.eks. klimaændringer, nanoteknologi, partikelfysik, astronomi, seksualitet, biologiske våben, ecstasy, evolutionsbiologi, kloning, fedme, søvnforskning, muligheden for liv på mars, influenzaepidemier, livets opståen osv.
Artiklerne roses for at gøre vanskeligt stof forståeligt, uden at den videnskabelige holdbarhed tabes.