What kind of sea ice is that? Ask Knut!
2021-07-08
If you've watched Netflix, shopped online, or run your robot vacuum cleaner, you've interacted with artificial intelligence, AI. AI is what allows computers to comb through an enormous amount of data to detect patterns or solve problems. The European Union says AI is set to be a "defining future technology."
And yet, as much as AI is already interwoven into our everyday lives, there's one area of the globe where AI and its applications are in their infancy, says Ekaterina Kim, an associate professor at the Norwegian University of Science and Technology's (NTNU) Department of Marine Technology. That area is the Arctic, an area where she has specialized in studying sea ice, among other topics.
"It's used a lot in marketing, in medicine, but ...
Reading the rocks: Geologist finds clues to ancient climate patterns in chert
2021-07-08
BINGHAMTON, N.Y. -- A million years ago, dry seasons became more frequent and forests retreated before the encroaching savanna. Meanwhile, clustered around a nearby lake, our ancient ancestors fashioned stone tools.
During the long press of years, mud and sediment in that East African lake turned to stone, trapping pollen and microscopic organisms in its lattice. Today, researchers like Kennie Leet analyze samples of these ancient sediments, known as sediment cores, to create a picture of the environment early humans called home.
A doctoral student in geological sciences, Leet is the first author ...
Wage inequality negatively impacts customer satisfaction and does not improve long-term firm performance
2021-07-08
Researchers from University of Mannheim published a new paper in the Journal of Marketing that examines the effect of wage inequality on customer satisfaction and firm performance.
The study, forthcoming in the Journal of Marketing, is titled "Wage Inequality: Its Impact on Customer Satisfaction and Firm Performance" and is authored by Boas Bamberger, Christian Homburg, and Dominik M. Wielgos.
Irrespective of wage cuts and employee layoffs, the wages of top managers rose to record levels during the pandemic and wage inequality continues to grow worldwide. However, according to a 2015 OECD report, "wage inequality is harmful to long-term economic growth and undermines ...
Newborn screening for epilepsy in sight through the discovery of novel disease biomarkers
2021-07-08
The door has finally opened on screening newborn babies for pyridoxine-dependent epilepsy (PDE), a severe inherited metabolic disorder. This screening promises to enable better and earlier treatment of the disease. To identify new biomarkers that can be used in the newborn screening protocol, also known as the neonatal heel prick, researchers at the Radboud University Medical Center joined forces with scientists at the Radboud University's FELIX laser laboratory. They published their findings in The Journal of Clinical Investigation.
The discovery and identification ...
Novel study of high-potency cannabis shows some memory effects
2021-07-08
PULLMAN, Wash. - Even before the pandemic made Zoom ubiquitous, Washington State University researchers were using the video conferencing app to research a type of cannabis that is understudied: the kind people actually use.
For the study, published in Scientific Reports, researchers observed cannabis users over Zoom as they smoked high-potency cannabis flower or vaped concentrates they purchased themselves from cannabis dispensaries in Washington state, where recreational cannabis use is legal. They then gave the subjects a series of cognitive tests.
The researchers found no impact on the users' performance on decision-making tests in comparison to a sober control group but did find some memory impairments related to free ...
EHR alerts go unread, do not lead to deprescribing of medicines linked to dementia
2021-07-08
INDIANAPOLIS -- The vast majority of electronic health record (EHR) alerts attempting to reduce the prescribing of high-risk medications linked to dementia in older adults went unread in a study led by research scientists from Regenstrief Institute, Purdue University and Indiana University School of Medicine. The goal of the intervention was to facilitate the deprescribing of anticholinergics through both provider and patient-based alerts, however, engagement with the alerts was so low, the study team was unable to conclude if this approach could be ...
Machine-learning improves the prediction of stroke recovery
2021-07-08
When blood flow to the brain is somehow reduced or restricted, a person can suffer what we know as a stroke (from "ischemic stroke" in medical jargon). Stroke is one of those conditions that seems fairly common. This isn't a misperception: just in Europe, there are over 1.5 million new cases each year.
Some strokes can be lethal, and when they're not they often result in serious damage to the victim's ability to move. In fact, stroke is one of the major causes of long-term disability today. Recovery can be a long and arduous road. Again, in Europe, under 15% of the patients ...
Open-source software to help cities plant in pursuit of clean air
2021-07-08
Software to help towns and cities use street-planting to reduce citizens' exposure to air pollution has been developed by researchers at the University of Birmingham.
Street planting, or 'green infrastructure', is an essential part of the urban realm, but there is a misconception that plants remove or 'soak up' a lot of pollution. Instead, planting at this scale primarily serves to redistribute pollution by changing air currents within streets and beside open roads.
Because of this, not only the position and amount of planting within a street, but also ...
Thousands of galaxies classified in a blink of an eye
2021-07-08
Astronomers have designed and trained a computer program which can classify tens of thousands of galaxies in just a few seconds, a task that usually takes months to accomplish.
In research published today, astrophysicists from Australia have used machine learning to speed up a process that is often done manually by astronomers and citizen scientists around the world.
"Galaxies come in different shapes and sizes" said lead author Mitchell Cavanagh, a PhD candidate based at The University of Western Australia node of the International Centre for Radio Astronomy Research (ICRAR).
"Classifying the shapes of galaxies is an important step in understanding their formation and evolution, and can even shed light on the nature of the Universe itself."
Mr Cavanagh said that ...
Most common joint procedures not backed by high quality evidence
2021-07-08
Most common bone and joint (orthopaedic) procedures, such hip replacements and shoulder repair surgery, are not backed up by high quality evidence, mainly because of a lack of definitive trials, suggests an analysis of data published by The BMJ today.
Yet despite the lack of strong supporting evidence, some of these procedures are still recommended by national guidelines in certain situations, the findings show.
Musculoskeletal conditions affect around 1 in 4 UK adults and account for over 25% of all NHS surgical interventions at a cost of £4.76 billion each year.
National ...
Muscle relaxants largely ineffective for low back pain
2021-07-08
Muscle relaxant drugs are largely ineffective for low back pain, despite being widely prescribed for this condition, suggests an analysis of the latest evidence published by The BMJ today.
The findings show that muscle relaxants might reduce pain in the short term, but the effect is too small to be considered clinically meaningful, and there is an increased risk of side effects.
But the researchers stress that the certainty of evidence is low and say large trials are urgently needed to resolve uncertainties around the use of these drugs for back pain.
Low back pain is a global public health problem and muscle relaxants (a broad class of drugs that include ...
Mandatory COVID-19 vaccination for care home workers is unnecessary, disproportionate and misguided
2021-07-08
Mandatory covid-19 vaccination for care home workers is unnecessary, disproportionate and misguided, warn experts
And is based on unreliable data
In The BMJ today, experts argue that mandatory vaccination is "unnecessary, disproportionate, and misguided."
The government decision to remove the right of care home staff in England to choose whether or not to be vaccinated against covid-19 is a profound departure from public health norms. The intended next step is a rapid and massive expansion of compulsory vaccination to legally require covid-19 and flu vaccination of all frontline health and social care workers, subject to consultation.
But Lydia Hayes, Professor of Law at Kent ...
Malaria and dengue predicted to affect billions more people
2021-07-08
An estimated 8.4 billion people could be at risk from malaria and dengue by the end of the century if emissions keep rising at current levels, according to a new study published in The Lancet Planetary Health.
The research team estimates that this worst-case scenario would mean the population at risk of the diseases might increase by up to 4.7 additional billion people (relative to the period 1970-1999), particularly in lowlands and urban areas, if temperatures rise by about 3.7°C 1 by 2100 compared to pre-industrial levels.
The study was led by the London School of Hygiene & Tropical Medicine (LSHTM) with partners from Umeå University, Sweden; Abdus Salam ...
Tool helps predicts who will respond best to targeted prostate cancer therapy
2021-07-08
LOS ANGELES - A new prognostic tool developed by researchers from the UCLA Jonsson Comprehensive Cancer Center and five other institutions helps predict which men with advanced metastatic prostate cancer will respond favorably to a novel targeted therapy.
The tool, described in a study published today in Lancet Oncology, analyzes a wide spectrum of imaging and clinical data and is intended to assist physicians considering treating patients with Lutetium-177 prostate-specific membrane antigen, or LuPSMA.
LuPSMA, which binds to PSMA proteins and delivers targeted radiation to prostate cancer tissue, offers a new option to men with PSMA-positive metastatic cancer that is castration-resistant, meaning it has stopped ...
Protein's 'silent code' affects how cells move
2021-07-07
The protein actin is ubiquitous and essential for life. In mammals, every cell expresses two of its forms, beta-actin and gamma-nonmuscle-actin. Despite having distinct roles, the two forms are nearly identical, sharing 99% of their amino acid sequence.
Research by Anna Kashina of Penn's School of Veterinary Medicine and colleagues has shown that, contrary to scientific dogma, it's not the slight differences in amino acid sequence that govern these proteins' discrete functions in the cell. Rather, their nucleotide sequences--the "letters" that make up their DNA coding sequence, which differ by roughly 13% between the two forms--are responsible for their individual roles in organisms' ...
Commensal bacteria 'vaccine' may safely prep immune cells for meningitis-causing cousin
2021-07-07
Researchers have produced vaccine-like immune responses to a dangerous bacterium by colonizing 26 healthy volunteers with a related, but harmless, commensal bacterial species. The first-in-human, controlled infection study showed the strategy was safe, as no side effects were reported and the volunteers didn't transmit the commensal bacteria to bedroom-sharers over the 90-day study. Neisseria lactamica is a member of the microbiome that usually resides in the upper airways of children but can also safely colonize the airways of adults. Some researchers theorize that these bacteria ...
More EVs could reduce CO2 emissions in Hawaii by 93% in less than 30 years
2021-07-07
By 2050, faster adoption of electric vehicles (EVs) and faster generation of renewable energy will result in 99% less fossil fuel consumed and 93% less CO2 emissions from passenger and freight vehicles on O?ahu. That's under the most ambitious scenario in an article published in World Electric Vehicle Journal, by University of Hawai?i at Mānoa School of Ocean and Earth Science and Technology (SOEST) faculty member Katherine McKenzie.
McKenzie, based at the Hawai?i Natural Energy Institute in SOEST, created mathematical models of four scenarios based on projections for the switch to electric passenger and freight ...
A biological fireworks show 300 million years in the making
2021-07-07
Five years ago, researchers at Northwestern University made international headlines when they discovered that human eggs, when fertilized by sperm, release billions of zinc ions, dubbed "zinc sparks."
Now, Northwestern has teamed up with the U.S. Department of Energy's (DOE) Argonne National Laboratory and Michigan State University (MSU) to reveal that these same sparks fly from highly specialized metal-loaded compartments at the egg surface when frog eggs are fertilized. This means that the early chemistry of conception has evolutionary roots going back at least 300 million years, to the last common ancestor between frogs and people.
"This work may help inform our understanding of the interplay of dietary zinc status and human fertility." -- Thomas O'Halloran, professor, Michigan State ...
Scientists show the importance of contact with nature in the city during the lockdown
2021-07-07
The measures taken during the COVID-19 pandemic limited the access of citizens to natural objects. It is still unexplored, what consequences this had for the residents and what conclusions should be drawn for more effective urban planning. RUDN University scientists with colleagues from Australia and Germany studied how the restrictions associated with COVID-19 affected the use of blue and green infrastructure by citizens in Moscow (Russia) and Perth (Australia), and what consequences this had for their health. In the article "Human Dimensions of Urban Blue and Green Infrastructure during a Pandemic. The Case Study of Moscow (Russia) ...
Human-driven habitat change leads to physical, behavioral change in mosquitofish
2021-07-07
Bahamian mosquitofish in habitats fragmented by human activity are more willing to explore their environment, more stressed by change and have smaller brain regions associated with fear response than mosquitofish from unaffected habitats. The new study from North Carolina State University shows that these fish have adapted quickly in specific ways to human-driven change, and cautions that environmental restoration projects should understand these changes so as not to damage adapted populations.
The Bahamas mosquitofish is a small, coastal fish species that frequently inhabits tidal creeks - shallow, tidally influenced marine ecosystems. ...
For neuroscientists and researchers in general, a checklist for eliminating gender bias
2021-07-07
In 2019, Anaïs Llorens and Athina Tzovara -- one a current, the other a former University of California, Berkeley, postdoctoral scholar at the Helen Wills Neuroscience Institute (HWNI) -- were attending a scientific meeting and pleased that one session, on gender bias in academia, attracted nearly a full house. The problem: The audience of some 300 was almost all women.
Where were the men, they wondered? More than 75% of all tenured faculty in Ph.D. programs around the world are men, making their participation key to solving the problem of gender bias, which negatively impacts the careers, work-life balance and mental health of all women in science, and even more ...
'Fortunate accident' may yield immunity weapon against antibiotic-resistant bacteria
2021-07-07
FOR IMMEDIATE RELEASE
In what turned out to be one of the most important accidents of all time, Scottish bacteriologist Alexander Fleming returned to his laboratory after a vacation in 1928 to find a clear zone surrounding a piece of mold that had infiltrated a petri dish full of Staphylococcus aureus (S. aureus), a common skin bacterium he was growing.
That region of no bacterial growth was the unplanned birth of a medical miracle, penicillin, and would lead to the era of antibiotics. Now, END ...
Scientists use artificial intelligence to detect gravitational waves
2021-07-07
When gravitational waves were first detected in 2015 by the advanced Laser Interferometer Gravitational-Wave Observatory (LIGO), they sent a ripple through the scientific community, as they confirmed another of Einstein's theories and marked the birth of gravitational wave astronomy. Five years later, numerous gravitational wave sources have been detected, including the first observation of two colliding neutron stars in gravitational and electromagnetic waves.
As LIGO and its international partners continue to upgrade their detectors' sensitivity to gravitational waves, they will be able to probe a larger volume of the universe, thereby making the detection ...
Study: Hospitals not adequately prepared for next pandemic
2021-07-07
As the COVID-19 pandemic wanes in the U.S., a new study from the University of Maryland School of Medicine (UMSOM) and University of Maryland Medical Center (UMMC) finds that hospitals nationwide may not be adequately prepared for the next pandemic. A 10-year analysis of hospitals' preparedness for pandemics and other mass casualty events found only marginal improvements in a measurement to assess preparedness during the years leading up to the COVID-19 pandemic. The study was published last month in the Journal of Healthcare Management.
"Our work links objective healthcare data to a hospital score that ...
University of Maryland researchers record brainwaves to measure 'cybersickness'
2021-07-07
If a virtual world has ever left you feeling nauseous or disorientated, you're familiar with cybersickness, and you're hardly alone. The intensity of virtual reality (VR)--whether that's standing on the edge of a waterfall in Yosemite or engaging in tank combat with your friends--creates a stomach-churning challenge for 30-80% of users.
In a first-of-its kind study, researchers at the University of Maryland recorded VR users' brain activity using electroencephalography (EEG) to better understand and work toward solutions to prevent cybersickness. The research was conducted by Eric Krokos, who received his Ph.D. in computer science in 2018, and Amitabh Varshney, a professor of computer science ...
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