Posts filtered by tags: Duke University[x]


Boosted by celebrity endorsements and a controversial research program, clinics are peddling stem cell autism treatments questioned by experts

A researcher holds a box containing vials of human embryonic Stem Cell cultures from the freezer at the Burnham Institute on November 3, 2004 in La Jolla, California. Sandy Huffaker/Getty Images From Central America to Ukraine, unlicensed clinics are offering stem cell therapies as a treatment for autism.  Stem cells used mainly to treat blood disease. Their effectiveness on autism is unproven and the FDA has not licensed their use for the condition. One prominent clinic providing such tre...
Tags: Facebook, Home Depot, UK, Hollywood, Science, Instagram, US, Trends, Ukraine, Cnn, Autism, News UK, Stem Cells, Josh Brolin, Fda, Mel Gibson

'Ocean 100': Small group of companies dominates ocean economy

Most of the revenues extracted from use of the world's oceans is concentrated among 100 transnational corporations. Dubbed the "Ocean 100" by researchers at Duke University and Stockholm University, these "blue economy" companies collectively generated $1.1 trillion in revenues in 2018, according to research published Wednesday in the journal Science Advances. If the group were a country, it would have the world's 16th-largest economy, roughly equivalent to the gross domestic product (GDP) of M...
Tags: Science, Duke University, Stockholm University

The cancer microbiome reveals which bacteria live in tumors

Biomedical engineers at Duke University have devised an algorithm to remove contaminated microbial genetic information from The Cancer Genome Atlas (TCGA). With a clearer picture of the microbiota living in various organs in both healthy and cancerous states, researchers will now be able to find new biomarkers of disease and better understand how numerous cancers affect the human body.
Tags: Science, Duke University

A third of US families face a different kind of poverty

Before the pandemic, one-third of U.S. households with children were already "net worth poor," lacking enough financial resources to sustain their families for three months at a poverty level, finds new research from Duke University. In 2019, 57 percent of Black families and 50 percent of Latino families with children were poor in terms of net worth. By comparison, the rate for White families was 24 percent.
Tags: Science, US, Duke University

A third of U.S. families face a different kind of poverty

Before the pandemic, one-third of U.S. households with children were already "net worth poor," lacking enough financial resources to sustain their families for three months at a poverty level, finds new research from Duke University. In 2019, 57 percent of Black families and 50 percent of Latino families with children were poor in terms of net worth. By comparison, the rate for White families was 24 percent.
Tags: Science, Duke University

Light smokers may not escape nicotine addiction, study reveals

Even people who consider themselves to be casual cigarette smokers may be addicted, according to current diagnostic criteria. Researchers at Penn State College of Medicine and Duke University found that many light smokers -- those who smoke one to four cigarettes per day or fewer -- meet the criteria for nicotine addiction and should therefore be considered for treatment.
Tags: Science, Duke University, Penn State College of Medicine

Sound waves spin droplets to concentrate, separate nanoparticles

Mechanical engineers at Duke University have devised a method for spinning individual droplets of liquid to concentrate and separate nanoparticles for biomedical purposes. The technique is much more efficient than traditional centrifuge approaches, working its magic in under a minute instead of taking hours or days, and requires only a tiny fraction of the typical sample size. The invention could underline new approaches to applications ranging from precision bioassays to cancer diagnosis.
Tags: Science, Duke University

Childhood intervention can prevent 'deaths of despair'

Mortality rates among young adults are rising in the US due in part to 'deaths of despair' -- preventable deaths from suicide, drug overdoses and alcohol-related liver disease. An intensive childhood intervention program called Fast Track could help reduce these deaths by reducing risky behaviors in adolescence and young adulthood, finds new research from Duke University and the Conduct Problems Prevention Research Group.
Tags: Science, US, Duke University

Accurate neural network computer vision without the 'black box'

New research by a team at Duke University offers clues to what goes on inside the minds of machines as they learn to see. Instead of attempting to account for a neural network's decision-making on a post hoc basis, their method shows how the network learns along the way, by revealing how much the network calls to mind different concepts to help decipher what it sees as the image travels through successive layers.
Tags: Science, Duke University

Nanomaterials enable dual-mode heating and cooling device

Engineers at Duke University have demonstrated a dual-mode heating and cooling device for building climate control that, if widely deployed in the U.S., could cut HVAC energy use by nearly 20 percent. The invention uses a combination of mechanics and nanomaterials to either harness or expel certain wavelengths of light. Depending on conditions, rollers move a sheet back and forth to expose either heat-trapping materials or cooling materials.
Tags: Science, Duke University

Predicting forces between oddly shaped nanoparticles

Materials scientists at Duke University have devised a simplified method for calculating the forces that cause nanoparticles to self-assemble. With this new model and graphical user interface, researchers will be able to make previously impossible predictions about how nanoparticles with a wide variety of shapes will interact with one another. The new method offers opportunities for rationally designing such particles for a wide range of applications from harnessing solar energy to driving catal...
Tags: Science, Duke University

Duke University's aggressive COVID testing and surveillance minimized infections

An aggressive COVID-19 surveillance and testing effort at Duke University was highly effective in minimizing the spread of the disease among students on campus, according to a case study appearing Tuesday in the CDC's Morbidity and Mortality Weekly Report.
Tags: Science, Cdc, Duke University

Researchers discover bacterial DNA's recipe for success

Biomedical engineers at Duke University have developed a way of modeling how potentially beneficial packages of DNA called plasmids circulate and accumulate through a complex environment that includes many bacterial species. The researchers hope that their new model will lay the groundwork for others to better model and predict how important traits such as antibiotic resistance in pathogens or metabolic abilities in bacteria bred to clean environmental pollution will spread and grow in a given e...
Tags: Science, Duke University

Wound-healing biomaterials activate immune system for stronger skin

Researchers at Duke University and the University of California, Los Angeles, have developed a biomaterial that significantly reduces scar formation after a wound, leading to more effective skin healing. This new material, which quickly degrades once the wound has closed, activates an adaptive immune response that can trigger regenerative wound healing, leaving behind stronger and healthier healed skin.
Tags: Science, Duke University, University of California Los Angeles

Rich states' Covid deals 'may deprive poor of vaccine for years'

Wealthy countries already have agreements for 3.73bn doses, with another 5m under negotiation, study findsCoronavirus – latest updatesSee all our coronavirus coverageGovernments in predominantly wealthy countries are negotiating to buy nearly 8.8bn doses of prospective Covid-19 vaccines in a “frenzy of deals” that could mean many poor countries would not get access to immunisation until at least 2024, a report says.None of the 320-plus potential vaccines in development have been approved for use...
Tags: Science, UK News, World news, Global development, Duke University, Coronavirus

Report calls for easing access, improving home health for older adults

Older adults have suffered disproportionately from the COVID-19 pandemic, with increased risk of severe illness and death reported across the globe. A new report argues that one policy change made during the pandemic should remain in place after the novel coronavirus virus fades away: better access to home health services through Medicare. In a set of recommendations published by the Commonwealth Fund, researchers at Oregon Health & Science University and Duke University argue for regulatory cha...
Tags: Science, Medicare, Duke University, Commonwealth Fund, Oregon Health Science University

Pinpointing the 'silent' mutations that gave the coronavirus an evolutionary edge

We know that the coronavirus behind the COVID-19 crisis lived harmlessly in bats and other wildlife before it jumped the species barrier and spilled over to humans. Now, researchers at Duke University have identified a number of "silent" mutations in the roughly 30,000 letters of the virus's genetic code that helped it thrive once it made the leap -- and possibly helped set the stage for the global pandemic.
Tags: Science, Duke University

How malaria parasites withstand a fever's heat

The parasites that cause 200 million cases of malaria each year can withstand feverish temperatures that make their human hosts miserable. Now, a Duke University-led team is beginning to understand how they do it. The researchers have identified a lipid-protein combo that springs into action to gird the parasite's innards against heat shock. Understanding how malaria protects its cells against heat and other onslaughts could lead to new ways to fight tough-to-kill strains, researchers say.
Tags: Science, Duke University

Children are spending more time online and in front of screens than ever before. Parents and experts reveal their best tips for managing kids' tech use.

Jessica Nelson, pictured above with her family, has set boundaries around screen time by having her kids help out with chores around the house. Jessica Nelson COVID-19 has seen an increase in children’s screen time, with many now clocking six hours per day according to one study — up 500% since before the pandemic. Business Insider spoke to parents and experts about how to best manage kids’ screen time Their advice varied from establishing offline routines to focusing more on what childr...
Tags: Health, Amazon, Science, Parenting, Life, Trends, Tech, Nelson, Parenting Tips, Screen Time, Oklahoma City, Parenting Advice, Buffalo New York, Duke University, Vancouver British Columbia, Alana

When the Otters Vanished, Everything Else Started to Crumble

In 1970, Jim Estes made his first trek up to Alaska's Aleutian Islands. He was greeted by an ocean filled with furry faces.Everywhere the young biologist looked, there were sea otters -- lollygagging on kelp beds, shelling sea urchins, exchanging their signature squeals. Back then, crowds of these charismatic creatures shrouded the sprawling archipelago, congregating in "rafts and bunches, as many as 500 at once," said Estes, an ecologist at the University of California, Santa Cruz. "There w...
Tags: Science, Maine, Alaska, New York Times, Griffin, University of California Davis, Duke University, Boyd, ESTES, Aleutian Islands, University of California Santa Cruz, Bigelow Laboratory for Ocean Sciences, Jim Estes, Science Without, Doug Rasher, Anjali Boyd

Baboon matriarchs enjoy less stress

You know the type: Loud. Swaggering. Pushy. The alpha male clearly runs the show. Female alphas are often less conspicuous than their puffed up male counterparts, but holding the top spot still has its perks. Now, a study of female baboons points to another upside to being No. 1. A Duke University-led study of 237 female baboons in Kenya found that alphas have significantly lower levels of glucocorticoids, hormones produced in response to stress.
Tags: Science, Kenya, Duke University

New tracking technology will help fight rhino poaching in Namibia

Interactive software that 'reads' and analyzes footprints left by black rhinoceroses can be used to monitor the movements of the animals in the wild, giving conservationists a new way to keep watch on the endangered species and help keep it safe from poachers, according to a Duke University-led study.
Tags: Science, Namibia, Duke University

'Floppy' atomic dynamics help turn heat into electricity

Materials scientists at Duke University have uncovered an atomic mechanism that makes certain thermoelectric materials such as iron sulfide incredibly efficient near high-temperature phase transitions. The information will help fill critical knowledge gaps in the computational modeling of such materials, potentially allowing researchers to discover new and better options for technologies that rely on transforming heat into electricity.
Tags: Science, Duke University

For vulnerable families, the pandemic's effect on mental health is swift and harsh

In just a few months, the COVID-19 pandemic swiftly and substantially worsened mental health among US hourly service workers and their children -- especially those experiencing multiple hardships, according to new research from the Center for Child and Family Policy at Duke University and Barnard College.
Tags: Science, US, Duke University, Center for Child

Scent-sensing cells have a better way to fight influenza

Smell receptors that line the nose get hit by Influenza B just like other cells, but they are able to clear the infection without dying. A new Duke University paper in Cell Reports reveals not only the cells' successful strategy against viral infection, but also the diversity of immune responses from one kind of cell to another.
Tags: Science, Duke University

Tethering together type 2 diabetes drugs increases efficacy of combination therapy

Biomedical engineers at Duke University have shown that the effectiveness of a two-pronged type 2 diabetes treatment increases when the drugs are linked by a heat-sensitive tether rather than concurrently administered. The combination molecule forms a gel-like depot under the skin that slowly releases the drug. These findings suggest that this approach to combination drug design could be applied to disease therapies beyond diabetes.
Tags: Science, Duke University

After 50 years, scientists confirm that adorable elephant shrew species still exists

The Somali sengi, a type of elephant shrew with an elongated nose, had not been observed since the 1960s. It was recently rediscovered by scientists who lured them out from their rocky habitats with peanut butter, oatmeal, and yeast. The Somali cutie was originally rediscovered in neighboring Ethiopia, per Duke University's Steven Heritage: Here we report new evidence that the Somali Sengi is currently extant. These data include voucher specimens, georeferenced occurrence localities,...
Tags: Video, Science, News, Delightful Creatures, Environment, Ethiopia, Endangered Species, Somalia, Horn of Africa, Duke University, Republic of Djibouti, Steven Heritage, Somali Sengi

Researchers use AI to determine which face masks work best for COVID-19

A growing range of face masks are popping up around the world, but many haven’t proven their effectiveness against COVID-19. A new technique developed at Duke University aims to measure which ones provide the most protection by counting the respiratory droplets they emit during speech. The system is compromised of a black box, a laser, and a cell phone camera. It works by measuring the droplets produced when someone speaks through the mask. The wearer first places their mouth at a hole in the fr...
Tags: Startups, Science, Artificial Intelligence, Duke University, Neural, Coronavirus

Intranasal vaccine platform has potential for more effective vaccines, fewer side effects

The ongoing COVID-19 pandemic is shining a spotlight on vaccine development. As numerous vaccines race through clinical trials, physicians and researchers continue to develop new vaccine technologies to generate the most effective vaccines with the fewest side effects.A new proof-of-concept study by researchers at the University of Chicago and Duke University demonstrates the potential for one such platform, using self-assembling peptide nanofibers tagged with antigens to prime the immune system...
Tags: Science, University Of Chicago, Duke University

Researchers create artificial organelles to control cellular behavior

Biomedical engineers at Duke University have demonstrated a method for controlling the phase separation of an emerging class of proteins to create artificial membrane-less organelles within human cells. The advance, similar to controlling how vinegar forms droplets within oil, creates opportunities for engineering synthetic structures to modulate existing cell functions or create entirely new behaviors within cells.
Tags: Science, Duke University

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