People who have better spatial memory are also better at identifying odors, according to a new study. The findings build on a previous theory that the main reason we evolved a sense of smell was to help us with navigation, since most animals rely primarily on smell to find food and avoid predators. Researchers hypothesized that if this were indeed the case, there would be a strong link between na
Labrador retrievers, the second most popular dog breed in the UK, are vulnerable to a number of health conditions, according to a study published in the open-access journal Canine Genetics and Epidemiology.
New research led by the University of Sydney has revealed the life expectancy of chocolate Labradors is significantly lower than their black and yellow counterparts.
New research digs into how young male zebra finches learn to sing by finding the right teacher. The zebra finches must learn to copy the song of an adult tutor in order to ultimately attract a mate. Researchers already knew that juveniles don't copy songs played through a loudspeaker or sung by other species of birds. Now, scientists have shown how the juvenile birds identify the right teacher. "
In a randomized, placebo-controlled study, researchers from Israel have shown that cannabis can produce clinical remission in up to 65 percent of individuals after eight weeks of treatment, but that this improvement does not appear to result from a dampening down of the underlying inflammatory process.
Boltzmann Brains are hypothetical disembodied entities with self-awareness. It may be more likely for a Boltzmann Brain to come into existence than the whole Universe. The idea highlights a paradox in thermodynamics. The paradox of the Boltzmann Brain can really pull the rug from under you if you follow it to all of its logical and illogical extents. This mind-churning idea proposes that the worl
Päntsdrunk is the latest trend to come out of Northern Europe and it involves drinking alone at home. Finnish writer Miska Rantanen outlines the philosophy in his newest book titled: Pantsdrunk: Kalsarikanni: The Finnish Path to Relaxation. Kalsarikänni is a word in Finnish that literally means "drinking at home and alone in your underwear." It seems like you can always count on the Nordic people
This week's full moon is the hunter's moon, giving light autumn evenings to hunters keen to stock up the larder for winter This month's full moon occurs on 24 October. It is the second full moon since the autumnal equinox, and is known as the hunter's moon. It follows late September's full moon, called the harvest moon. It is said that the light from the harvest and hunter's moons is used to gath
T he Lakers have played home games at Staples Center in downtown Los Angeles for nearly two decades and in that time, bronze statues have popped up, like mushrooms, on the pavement surrounding the arena. The first and best depicts Magic Johnson on the first dribble of a fast break. His eyes are fixed down court, looking for openings in a shifting geometry of backpedaling defenders. His left hand
Autologous blood doping, in which an athlete is transfused with their own stored red blood cells to increase their oxygen capacity for competition, might be detectable now with the use of a microRNA marker of blood aging. An 18-nucleotide miRNA called miR-720 is produced in a predictable pattern as blood ages, which would allow sports officials to detect this kind of blood doping for the first tim
While it is widely shown that possessing the ApoE4 gene is the major genetic risk factor of Alzheimer's disease (AD), not all ApoE4 carriers develop AD. For the first time, researchers have shown that ApoE4 linked with chronic inflammation dramatically increases the risk for AD. This can be detected by sequential measurements of C-reactive protein, a common clinical test which can be could be done
For premature infants in the neonatal intensive care unit (NICU), skin-to-skin contact with parents influences levels of hormones related to mother-infant attachment (oxytocin) and stress (cortisol) — and may increase parents' level of engagement with their infants.
Life might be more orderly and easy to understand if biology worked just like this: People come in one of two sexes, male or female. This is determined by chromosomes, and XX means female, and XY means male. Males have penises and testicles—which are all similar in appearance and curvature and size—that secrete testosterone in similar proportions. This testosterone is metabolized and functions si
Researchers found that a common cattle forage grass, tall fescue, is associated with nest failure in dickcissels, small grassland birds similar to sparrows.
Feature describes unexpected discovery of a role the process that seeds magnetic fields plays in mediating a phenomenon that occurs throughout the universe and can disrupt cell phone service and knock out power grids on Earth.
The anti-trans lobby is using bad science to attack vulnerable young people If you were to understand two facts about transgender people, I'd want it to be these: 1) that we have always existed, and 2) that we have always been under attack for existing. Despite our many footholds throughout history, especially outside of the western colonial gaze, the narrative that we are a new phenomenon has be
Two of six critically endangered black rhinos have died of unknown causes five months after being flown from South Africa to Chad in a pioneering project to re-introduce the animals, officials said Sunday.
Richard Branson is just aiming to emulate what Nasa managed nearly 60 years ago, writes Michael Carley . Bryn Hughes says slave labour played a key role in Nazi Germany's work on space flight John Harris rightly points out the way in which space travel is increasingly driven by an anti-public ideology which claims that "the masses" have never "brought about innovation" ( We once marvelled at Neil
Ny metode kan gøre det muligt at finde frem til den bedste behandling til den enkelte tarmkræftpatient ved hjælp af skånsomt indhentede prøver fra metastaser, som dyrkes og testes i en tredimensionel laboratoriekultur.
To års behandling med PARP-hæmmer leder til substantiel forbedring af progressionsfri overlevelse blandt nydiagnosticerede patienter med kræft i æggestokkene.
Overlevelsen for ikke-forsøgsegnede patienter med modermærkekræft er blevet forbedret de senere år. Der er dog behov for yderligere studier af behandlingseffekt for gruppen af patienter, der ikke lever op til almindelige inklusionskriterier, mener forsker.
Overlevelsen for kræft i bugspytkirtlen, som bliver opdaget sent, er så lav, at det er nødvendigt at diagnosticere sygdommen tidligere. Ellers vil det i 2030 være en af de mest dødelige kræftformer i Danmark.
Patienter med nyrekræft kan måske med fordel behandles med immun checkpoint-blokkeren avelumab og tyrosin-kinase-hæmmeren axitinib, der i et nyt studie signifikant forbedrede den progressionsfrie overlevelse.
Nyt studie viser, at prognosen for mænd og kvinder med brystkræft er ens, hvilket retfærdiggør den nuværende kliniske praksis, siger en af forskerne bag.
Engineering students join Google and Microsoft workers in protesting the tech-industry's enabling of U.S. militarism — Read more on ScientificAmerican.com
WARSAW—On a chilly Friday evening in Poland's capital, mayoral candidate Patryk Jaki took the stage in Praga Park to make a final pitch to voters. The location had symbolic resonance: Warsaw's Praga district is home to many low-income residents who feel stigmatized and left behind by their increasingly prosperous and cosmopolitan city. This, in turn, helps makes it friendly territory for Jaki's L
New research finds that Northern Ireland's strict abortion laws have negative consequences for women's health and well-being, suggesting a public-health rationale to decriminalize abortion.
Scientists have developed a novel way to barcode and track different CRISPRs by utilizing synthetic proteins built from combinations of smaller proteins, called epitopes. By being able to mark each CRISPR with a unique identifier, the protein barcodes, or Pro-Codes for short, enable hundreds of CRISPRs to be used together to knockout a multitude of genes.
Since 2013, gifts and payments to doctors by pharmaceutical and medical device companies have been publicly reported. Some medical centers, employers, and states have banned or restricted detailing visits, physician payments or gifts. In order to better understand the effects of these changes, a team of researchers conducted a national survey of internal medicine doctors.
A major global report confirms gun-related homicides, suicides and accidents are falling in Australia after the introduction of anti-gun laws, and that the effect of such tough laws is similar elsewhere.
Use alongside traditional treatment in advanced cases 'could benefit 3,000 men in UK' Radiotherapy could increase the chances of survival for thousands of men with prostate cancer that has already spread by the time they are diagnosed, new research suggests. Prostate cancer is the most common cancer to affect men in the UK. About 47,000 are diagnosed every year and around 11,500 die. Significant
People who have better spatial memory are also better at identifying odors, according to a new study. The study builds on a recent theory that the main reason that a sense of smell evolved was to aid in navigation, since most animals rely primarily on smell to find food and avoid predators.
Air pollution in the US has decreased since about 1990, and a new study now shows that this air quality improvement has brought substantial public health benefits. The study found that deaths related to air pollution were nearly halved between 1990 and 2010.
UK charity cracks down on harassment after recent high-profile accusations Britain's largest cancer charity has announced new rules to crack down on bullying and harassment. Cancer Research UK (CRUK) said scientists who bullied or harassed colleagues would face sanctions that could include being prevented from supervising PhD students, losing funding from the charity or being barred from applying
Interregionalt samarbejde med danske og nordtyske forskningsinstitutioner samt virksomheder skal sikre udvikling af metode, der gør brugen af nanopartikler sikker i mademballage.
Overactive bladder (OAB) is a common form of urinary incontinence that is widely treated with pelvic floor muscle (PFM) training. A new laboratory study lends insights into how PFM training works: by reducing contractions of the detrusor muscle of the bladder.
Letters from the Archives is a series in which we highlight past Atlantic stories and reactions from readers at the time. Just over a year ago, the Hollywood mogul Harvey Weinstein was accused of decades of sexual misconduct by a slew of women in the industry. Since then, the #MeToo movement has thrust questions of sexual overreach into the public sphere. But even as the cultural conversation abo
Tesla makes yet another non-$35K Model 3, battery swapping somehow comes back, yet more evidence 'semi-autonomous' driving is confusing people, and more car news.
Variations in brain chemistry and what make us feel safe can be the difference between those who enjoy getting scared and those who don't — Read more on ScientificAmerican.com
Take a stroll through the coastal dunes, woodlands, or cities of Europe and you will likely find, with an observant eye, grove snails. They come in a variety of colors: coral pink, lemon yellow, lush mahogany. Sometimes, their shells are swirled with as many as five black bands. For decades in the early and mid-20th century, schoolboys collected the shells in the same way they collected bird eggs
Neither is blinking. Bernie Sanders thinks he has a lock on his supporters. Elizabeth Warren thinks she can get enough of them, and enough elsewhere to run regardless. Allies and supporters are anxious they'll destroy both their chances, and kneecap progressive politics along the way. Some close to Sanders feel like Warren was trying to muscle him out of the race, and laugh at the idea that she w
When it comes to educating, says Dr. Elizabeth Alexander, a brave failure is preferable to timid success. Fostering an environment where one isn't afraid to fail is tantamount to learning. Human beings are complicated and flawed. Working with those complications and flaws leads to true knowledge.
The loud crack rang out from the fog above the Baishui No. 1 Glacier as a stone shard careened down the ice, flying past Chen Yanjun as he operated a GPS device.
Harpal Singh struck a match and watched his fields burn, the acrid smoke drifting toward New Delhi where a lethal smog cocktail is once again intensifying over the world's most polluted megacity.
German Finance Minister Olaf Scholz said in an interview for publication Sunday he backed a global minimum fiscal regime for multinationals as Europe looks to levy tax notably on US tech giants.
A billion-dollar hydroelectric dam development in Indonesia that threatens the habitat of the world's rarest great ape has sparked fresh concerns about the impact of China's globe-spanning infrastructure drive.
In April, a Season 4 episode of Jane the Virgin sees Alba—the titular character's grandmother—applying for her U.S. citizenship. It's a storyline that's been seasons in the making, as viewers watched her evolve from undocumented immigrant to green-card holder to naturalized American. When Alba passes her test with a perfect score, stars from her new country's flag float around her head as she cel
Edderkopper har en hjerne, så der er en sandsynlighed for hovedpine, vurderer forsker. På DR Viden tager vi børns nysgerrighed alvorligt og finder svar hos videnskaben.
Dansk studie indikerer, at medicinalfirmaer, der sponsorerer forskning, forsøger at nedtone deres indflydelse, selv når de er involveret i design og endelig analyse.
The joint winner of this year's Nobel prize in chemistry talks about her pioneering work on enzymes and the realities of sexism in the sciences This month , Frances Arnold , professor of chemical engineering at Caltech in California , was awarded the 2018 Nobel prize in chemistry, shared with two others . She's the fifth female chemistry laureate since the prizes first began in 1901 , and the only
From catastrophic climate change to alien invasion, the theoretical physicist's thoughts about what might lie ahead were often far from optimistic In his recently published posthumous collection of articles and essays, Brief Answers to the Big Questions , Stephen Hawking forecast that genetic editing techniques will give rise to a breed of "superhumans" – "a race of self-designing beings who are
Computer bits are binary, with a value of 0 or one. By contrast, neurons in the brain can have all kinds of different internal states, depending on the input that they received. This allows the brain to process information in a more energy-efficient manner than a computer. University of Groningen (UG) physicists are working on memristors, resistors with a memory, made from niobium-doped strontium
A few very brief reports about science and technology from around the globe, including one from Mongolia on horse dentistry. — Read more on ScientificAmerican.com
Geneticists have assembled the largest sets of African genomic data available to date, creating a resource that will help researchers understand the genetic structure of Africa as well as the effects of genetic variation on protein function and disease. The findings underscore the importance of including globally diverse participant cohorts in genetics research.
When designing flying vehicles, there are many aspects of which we can be certain but there are also many uncertainties. Most are random, and others are just not well understood. Researchers brought together several mathematical and physical theories to help look at problems in more unified ways and solve physical engineering problems.
In new studies, a novel oxygen-delivery therapeutic restored the function of oxygen-starved heart tissue in an animal model of global hypoxia. Unlike its experimental predecessors, the new drug does not appear to cause systemic side effects or overcorrect with excessive blood oxygenation, which can itself be toxic. Instead, the new drug delivers its precious oxygen cargo only to the tissues that n
By studying the effect of genetic variations on lifespan across the human genome, researchers have devised a way to estimate whether an individual can expect to live longer or shorter than average, and have advanced scientific understanding of the diseases and cellular pathways involved in aging.
Upon implementing electronic medical record-based interventions, Boston Medical Center reduced unnecessary diagnostic testing and increased the use of postoperative order sets.
A new study is the first large-scale trial of hundreds of PTSD patients, including veterans and survivors of sexual assault, to measure whether patient preference in the course of treatment impacts the effectiveness of a type of cognitive behavioral therapy and use of selective serotonin reuptake inhibitors, a type of antidepressant often prescribed for PTSD.
In the ongoing chemical battles among bacteria and their microbial neighbors, a new toxin has been uncovered. This unfamiliar toxin behaves in a familiar way. Its actions against other bacteria resemble the mechanisms of cholera, pertussis and diphtheria toxins. Some bacteria deploying this toxin have safeguards against self-poisoning.
Herpes is the dreaded 'gift that keeps on giving'. But could it also be taking our memories? Decades of research show a striking correlation between Alzheimer's disease risk and infection with Herpes Simplex Virus 1 (HSV1) in people carrying a specific gene. Now, newly-available epidemiological data provide a causal link between HSV1 infection and senile dementia — raising the tantalizing prospec
A single gene of the mother plays such a crucial role in the development of the placenta that its dysfunction leads to miscarriages. Researchers have observed this in so-called knockout mice that were specifically modified for this purpose. These mice lack the gene for the transcription factor Math6. By conducting further analyses, the research team is now hoping to gain new insights into the role
New research gives the clearest guidance yet on how schools can best support children with ADHD to improve symptoms and maximize their academic outcomes.
Scientists have taken part in research where the first molecule capable of remembering the direction of a magnetic above liquid nitrogen temperatures has been prepared and characterized. The results may be used in the future to massively increase the storage capacity of hard disks without increasing their physical size.
If you're a parent, you may be concerned that materialism among children has been on the rise. But there's some good news. A new study suggests that some parenting tactics can curb kids' materialistic tendencies.
Microorganisms often assemble natural products similar to industrial assembly lines. Certain enzymes, non-ribosomal peptide synthetases (NRPS) play a key role in this process. Biotechnologists have now been able to discover how these enzymes interact with each other. This brings them one step closer to their goal of engineering the production of such peptide natural products.
Scientists studying a valuable, but vulnerable, species of poplar have identified the genetic mechanism responsible for the species' inability to resist a pervasive and deadly disease. Their finding could lead to more successful hybrid poplar varieties for increased biofuels and forestry production and protect native trees against infection.
A new study has shown that eating vegetable nitrates, found mainly in green leafy vegetables and beetroot, could help reduce your risk of developing early-stage age-related macular degeneration (AMD).
For the first time, researchers have measured what is known as the ground effect of flying animals — and it turns out that they save a lot more energy by flying close to the ground than previously believed. The study supports one of the theories on how birds began to fly.
Bullying and aggression carry heavy societal costs. For the first time, researchers have found a signalling mechanism in the brain that shapes social behavior — specifically a growth factor protein, called brain-derived neurotrophic factor (BDNF), and its receptor, tropomyosin receptor kinase B (TrkB), which affects social dominance. This novel discovery has implications for a deeper understandin
A new type of blow fly spotted in Indiana points to shifting species populations due to climate change. Researchers have observed the first evidence of Lucilia cuprina in Indiana, an insect previously known to populate southern states from Virginia to California.
Among several forms of pancreatic cancer, one of them affects specifically women, often young, even though the pancreas is an organ with little exposure to sex hormones. This pancreatic cancer, known as 'mucinous cyst,' has strange similarities with another mucinous cancer, affecting the ovaries. By conducting large-scale analyses of genomic data, researchers have provided an answer: both tumors o
Neuroscientists have found a brain region that appears to be strongly connected to food preference decisions, like what to choose from a buffet line or potluck table.
Securing access to optimal cancer care for all patients can only be achieved through integrated, sustainable translation of today's scientific advances into tomorrow's treatments, reinforced by a clear understanding of the magnitude of clinical effects and accurate identification of patients most likely to benefit.
Denmark may be the birthplace of the Lego tower, but its workplace hierarchy is the flattest in the world. According to the World Economic Forum's Global Competitiveness Report 2018 , the nation tops an index measuring "willingness to delegate authority" at work, beating 139 other countries. This will come as no surprise to foreign workers who can find the country's egalitarian approach a culture
Young cancer patients at the crossroads of childhood and adulthood seem to be stuck in a treatment impasse. A study to be presented at the ESMO 2018 Congress in Munich, has highlighted the existence of barriers to the inclusion of 12 to 25-year-olds in both adult and paediatric early phase clinical trials, suggesting a need for more tailored approaches to give this patient population better access
Results from a phase 3 clinical trial indicate that patients who have not benefited from standard therapy for ankylosing spondylitis (AS), a chronic inflammatory disease characterized by back pain and sacroiliac-joint damage, may have another treatment option in the biologic drug ixekizumab.
Geneticists have assembled the largest sets of African genomic data available to date, creating a resource that will help researchers understand the genetic structure of Africa as well as the effects of genetic variation on protein function and disease. The findings underscore the importance of including globally diverse participant cohorts in genetics research, and were presented in a plenary ses
In the first study of its kind, researchers have found sex with an ex didn't prevent people from getting over their relationship. Instead of feeling worse about their breakup after a hookup, the new singles who attempted sexual contact with their ex reported feeling better afterwards. The findings suggest that not every piece of relationship advice is to be taken at face value. It seems like a ru
By studying the effect of genetic variations on lifespan across the human genome, researchers have devised a way to estimate whether an individual can expect to live longer or shorter than average, and have advanced scientific understanding of the diseases and cellular pathways involved in aging. Their findings were presented at the American Society of Human Genetics (ASHG) 2018 Annual Meeting in
This Halloween, scientists across the globe will celebrate the mysterious material they believe holds the universe together Lovers of the dark and the unseen will soon have a new cause to celebrate. They will be able to honour, on Halloween, the hunt for dark matter, the mysterious, invisible material that is thought to permeate space and hold galaxies together. Across Britain, the US and Europe,
Danske forskere har som de første vist, at man kan med analyser af cirkulerende tumor-DNA kan opdage tilbagefald hos blærekræftpatienter 100 dage tidligere end med de hidtidige CT-scanninger.
En reduceret kombinationsbehandling er bedre end den monoterapi, som man i dag ofte giver til ældre patienter med metastatisk tarmkræft, viser nyt studie.
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Tegn abonnement på
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.
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