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Science News Archive 2017 - Page 47


Page 47 of 461

Dementia study sheds light on how damage spreads through brain

A recent study has shed light on the causes of Dementia with Lewy Bodies (DLB) by revealing how toxic alpha-synuclein clumps disrupt vital parts of neurons and spread through brain connections. The research, led by the University of Edinburgh, used advanced technology to visualize synapses in DLB brains.

SourceUniversity of Edinburgh·JournalBrain·DateNov 20, 2017

Simplified method allows CGM users to leverage trend arrow data

Experts developed a streamlined approach to using Dexcom G5 Mobile Continuous Glucose Monitor (CGM) trend arrow data. The new tool helps individuals with diabetes adjust insulin doses more accurately, reducing dangerous fluctuations and long-term complications.

SourceThe Endocrine Society·JournalJournal of the Endocrine Society·DateNov 20, 2017
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Spin current from heat: New material increases efficiency

Physicists at Bielefeld University discovered a new material that can generate magnetic signals, known as 'spin currents', from heat, increasing efficiency. The researchers tested various combinations of thin films and found that materials with special electronic structures produced stronger spin currents.

SourceBielefeld University·JournalNature Communications·DateNov 20, 2017
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Breast milk found to protect against food allergy

A new study from Boston Children's Hospital suggests that eating allergenic foods during pregnancy can protect children from food allergies when breastfed. The research found that antibodies in breast milk transferred to offspring helped induce food tolerance, and the findings support recent guidelines rejecting advice to avoid highly ...

SourceBoston Children's Hospital·JournalJournal of Experimental Medicine·DateNov 20, 2017

Zika-related nerve damage caused by immune response to the virus

A Yale study finds that Zika infection triggers immune cells to attack neurons, causing paralysis and death in mice models lacking antiviral response. Suppressing the immune response might be an approach to treating Guillain-Barré syndrome, a condition affecting some people infected with Zika.

SourceYale University·JournalNature Microbiology·DateNov 20, 2017

MRI uncovers brain abnormalities in people with depression and anxiety

A recent study using MRI has uncovered a common pattern of structural abnormalities in the brains of people with depression and social anxiety. The research found that both conditions share similar clinical symptoms, suggesting they may have similar brain mechanisms. Cortical thickening in certain regions was observed in patients with ...

SourceRadiological Society of North America·DateNov 20, 2017
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Antarctic landscape insights keep ice loss forecasts on the radar

Researchers have obtained detailed maps of Pine Island Glacier, the fastest melting glacier in Antarctica, using radar surveys and snowmobiles. The findings show a surprisingly diverse landscape under the ice, with mountains and deep scour marks that will influence the flow and behavior of the ice.

SourceUniversity of Edinburgh·JournalNature Communications·DateNov 20, 2017

Anticholinergic cognitive burden scale helps identify risk of adverse outcomes

The Anticholinergic Cognitive Burden Scale (ACB) is associated with increased risk of emergency department visits, hospitalizations, and incident dementia in older adults. High ACB scores are linked to a dose-response relationship between anticholinergic burden and adverse clinical outcomes.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateNov 20, 2017

A physician explores her own experience with postpartum depression

Postpartum depression affects women differently than anticipated, with factors including societal expectations and stigma surrounding mental illness. Dr. Frankhouser's autoethnographic study aims to raise awareness and promote understanding, encouraging physicians to provide compassionate care and support.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateNov 20, 2017

How alkali flies adapt to Mono Lake

Researchers discovered that alkali flies have developed a dense hair layer to reduce water loss in the highly alkaline environment. The flies' cuticular hydrocarbons also play a crucial role in protecting them from dehydration.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 20, 2017
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

'Unparalleled access' in surface science

The NSF grant will enable Lehigh to acquire an E-XPS instrument, giving researchers unparalleled access to surface elemental composition and chemical state information. This capability will overcome limitations of traditional XPS instrumentation, advancing the fundamental science and design of advanced functional materials.

SourceLehigh University·DateNov 20, 2017

MIT physicists design $100 handheld muon detector

Physicists at MIT have designed a pocket-sized cosmic ray muon detector that can be made with common electrical parts. The relatively simple device costs just $100 and can be used by students to measure muon rates in various environments.

SourceMassachusetts Institute of Technology·JournalAmerican Journal of Physics·DateNov 20, 2017

Cholesterol helps flu virus escape through host cell's membrane

Researchers at MIT found that two cholesterol molecules bind to a flu protein called M2, creating a wedge shape in the cell membrane that severs the viral buds. This discovery sheds light on how many other proteins interact with membrane cholesterol.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateNov 20, 2017
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Filling the gap: High-latitude volcanic eruptions also have global impact

A recent study reveals that high-latitude volcanic eruptions can transport sulfate aerosols into the tropical stratosphere, influencing both hemispheres' climates. The research found that favorable atmospheric conditions can enable such long-distance transport, making these eruptions a global concern.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAtmospheric Chemistry and Physics·DateNov 20, 2017

'Brazil nut effect' helps explain how rivers resist erosion, Penn team finds

A recent study by Penn researchers reveals that the Brazil nut effect plays a crucial role in explaining how rivers resist erosion. The phenomenon, where larger particles tend to rise to the top of mixtures, helps create an armor-like layer on riverbeds, protecting them from excessive erosion. This finding has significant implications ...

SourceUniversity of Pennsylvania·JournalNature Communications·DateNov 20, 2017

UVA researchers discover a new target for 'triple-negative' breast cancer

Researchers have identified a possible way to reengage a tumor suppressor protein, Growth Differentiation Factor 11, in triple-negative breast cancer cells. This could lead to the development of novel medications that can stop the aggressive form of cancer by intervening in its progression.

SourceUniversity of Virginia·JournalDevelopmental Cell·DateNov 20, 2017
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

New framework for multimorbidity care identifies changes and gaps

Researchers developed a new framework to report and design models of care for multimorbidity, highlighting changing elements such as reduced home care and increased extended appointments. The framework provides a tool for standardized reporting and research on multimorbidity interventions.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateNov 20, 2017

Another danger sign for coral reefs: Substitute symbiont falls short

New research from Oregon State University reveals that a heat-tolerant Symbiodinium species may not be able to form a healthy partnership with corals, exacerbating the threat of climate change. The study used an established model system, sea anemones, to test the hypothesis.

SourceOregon State University·JournalProceedings of the National Academy of Sciences·DateNov 20, 2017
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Researchers pin down one source of a potent greenhouse gas

Researchers at Ohio State University found a new methane-producing microbe that survives in oxygen-rich environments, contrary to previous assumptions. The discovery suggests the amount of methane released into the atmosphere may be more than initially thought.

SourceOhio State University·JournalNature Communications·DateNov 20, 2017

Diabetes drug helps repair UV-damaged DNA in cells of 'Moon children'

A diabetes drug has been found to improve DNA repair in cells affected by Xeroderma pigmentosum, a rare genetic disease. The drug, acetohexamide, degrades the DNA repair enzyme MUTYH, triggering an NER-independent mechanism for removing UV-induced DNA damage.

SourceCeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences·JournalMolecular Cell·DateNov 20, 2017

Pre-diabetes discovery marks step towards precision medicine

Researchers have identified a three-molecule signature that accurately indicates insulin resistance, or pre-diabetes, in mice. This discovery could enable earlier detection of pre-diabetes in humans and tailor healthcare treatments to individual patients' needs.

SourceUniversity of Sydney·JournalJournal of Biological Chemistry·DateNov 20, 2017
CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Brain cell advance brings fresh hope for CJD therapies

Researchers have developed a new system to study Creutzfeldt-Jakob disease in the laboratory, using brain cells derived from human stem cells. The method enables scientists to infect human cells with prions and replicate the proteins in the lab, providing valuable information for potential treatments.

SourceUniversity of Edinburgh·JournalJournal of Experimental Medicine·DateNov 20, 2017

Quantum dots amplify light with electrical pumping

Researchers at Los Alamos National Laboratory have successfully amplified light using electrically excited films of quantum dots. The team developed a novel approach to eliminate heat loss and achieve optical gain, paving the way for highly flexible, electrically pumped lasers that can complement or displace existing laser diodes.

SourceDOE/Los Alamos National Laboratory·JournalNature Materials·DateNov 20, 2017
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

PSU researchers design survey to tap students' motivation in STEM

Researchers at Portland State University developed a survey to tap into students' motivation in STEM classes, highlighting the importance of feelings of belonging and positive identity. The survey findings aim to provide educators with tools to address motivational factors and improve teaching strategies.

SourcePortland State University·JournalInternational Journal of Science Education·DateNov 20, 2017

Use of Prostate Health Index test reduces unnecessary biopsies

The Prostate Health Index test influences physician decisions to perform biopsies, with only 36% of men receiving biopsies when phi testing was included in the assessment compared to 60% before its availability. The study also found a reduction in low-grade prostate cancers detected.

SourceSpringer·JournalProstate Cancer and Prostatic Diseases·DateNov 20, 2017
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

What makes soil, soil? Researchers find hidden clues in DNA

A team of scientists analyzed data on over 1900 soils from 21 countries, discovering constant bacterial groups across different environments. These bacteria hold clues to making some soils more fertile. Informative families of bacteria indicate real differences among types of soil.

SourceUniversity of Manchester·JournalNature Microbiology·DateNov 20, 2017

Artificial photosynthesis gets big boost from new catalyst

Researchers at the University of Toronto have developed a new catalyst that increases the efficiency of artificial photosynthesis to 64%, converting electrical energy into chemical energy. This innovation addresses two major challenges in renewable energy production, capturing carbon emissions and storing energy from solar or wind power.

SourceUniversity of Toronto Faculty of Applied Science & Engineering·JournalNature Chemistry·DateNov 20, 2017

Cultural values can be a strong predictor of alcohol consumption

A new study found that cultural values of autonomy and harmony are positively associated with higher average levels of alcohol consumption. Countries with more traditional values, such as hierarchy and collectivism, tend to have lower average levels of alcohol consumption.

SourceFrontiers·JournalFrontiers in Psychology·DateNov 20, 2017

Proteins in breastmilk protect offspring against food allergy

Research published in the Journal of Experimental Medicine found that a mother's diet can protect nursing newborns against food allergies. The study, supported by Food Allergy Research & Education (FARE), suggests that mothers should feel free to eat a healthy and diverse diet throughout pregnancy and breastfeeding.

SourceFood Allergy Research & Education·JournalJournal of Experimental Medicine·DateNov 20, 2017
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Blueprint to reduce wasteful blood transfusions

Experts recommend restrictive blood transfusion practices for stable patients with hemoglobin levels of 7 g/dL or higher, reducing mortality and blood clot risks. The study found significant reductions in blood use by 40-65% in largest randomized trials.

SourceJohns Hopkins Medicine·JournalJAMA Internal Medicine·DateNov 20, 2017

Thinking big by burning small

Researchers found that small fires create "grazing-lawn ecosystems" with higher food quality and increased safety for animals. The study showed that small burns (<25ha) attract large numbers of wildebeest, keeping grass short and palatable.

SourceUniversity of the Witwatersrand·JournalJournal of Applied Ecology·DateNov 20, 2017

Preclinical study demonstrates promising treatment for rare bone disease

A preclinical study led by Sanford Burnham Prebys Medical Discovery Institute demonstrates that palovarotene suppresses the formation of bony tumors in MHE models, reducing bone tumors by over 90%. The drug has been shown to be well-tolerated and is now set to begin a Phase 2/3 clinical trial.

SourceSanford Burnham Prebys·JournalJournal of Bone and Mineral Research·DateNov 20, 2017

First known interstellar visitor is an 'oddball'

The first known interstellar visitor, 'Oumuamua, is a rapidly rotating and dimly bright object similar to Kuiper Belt objects and organic-rich comets. It was discovered in October and observed using the Gemini Observatory before fading from view due to its increasing distance.

SourceAssociation of Universities for Research in Astronomy (AURA)·JournalNature·DateNov 20, 2017

ACP and CDC issue recommendations for hepatitis B screening, vaccination, and care

The American College of Physicians (ACP) and the Centers for Disease Control and Prevention (CDC) advise physicians to vaccinate all unvaccinated adults against hepatitis B virus (HBV) infection and screen high-risk persons. This can help reduce chronic HBV infections, cirrhosis, hepatocellular carcinoma, and premature death.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateNov 20, 2017
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Optimal gout treatment requires ongoing monitoring for urate lowering therapy

A new study found a positive association between allopurol initiation and recurring doctor visits for gout, highlighting the need for regular chronic disease reviews to evaluate patients' preferences and eligibility for treatment. The study suggests that more frequent monitoring could reduce barriers to successfully treating gout.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateNov 20, 2017

Why rural coal families are less likely to divorce

A study suggests that rural coal families are less likely to divorce when faced with economic downturns. The researchers found that rural counties with higher levels of coal jobs had lower divorce rates compared to similar counties with fewer coal jobs during the 1990s.

SourceOhio State University·JournalJournal of Rural Studies·DateNov 20, 2017

Benzodiazepines increase mortality in persons with Alzheimer's disease

A new study published in International Journal of Geriatric Psychiatry found that benzodiazepine use is associated with a 40% increased risk of death among persons with Alzheimer's disease. The study, which included over 10,380 participants, suggests that these drugs may contribute to adverse events such as falls, pneumonia, and stroke.

SourceUniversity of Eastern Finland·JournalInternational Journal of Geriatric Psychiatry·DateNov 20, 2017
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Added Arctic data shows global warming didn't pause

A new study published in Nature Climate Change reveals that the Arctic warmed more than six times the global average during the 'global warming hiatus' from 1998 to 2012. The research uses improved datasets and methods to estimate average global temperatures, showing that the rate of global warming continued to rise at 0.112C per decade.

SourceUniversity of Alaska Fairbanks·JournalNature Climate Change·DateNov 20, 2017

Can MicroRNA levels identify concussion symptom duration in children?

A recent study published in JAMA Pediatrics found that microRNA levels in the saliva of children with mild traumatic brain injury can accurately identify those with prolonged concussion symptoms. This discovery holds promise for improving concussion management and reducing parental anxiety.

SourceJAMA Network·JournalJAMA Pediatrics·DateNov 20, 2017

Evolutionary history of Staphylococcus aureus

Researchers analyzed 224 ST8 isolates and found that the ancestor likely emerged in Central Europe during the mid-19th century. The lineage then spread globally, acquiring characteristics of USA300 and becoming widespread in North America by the early 20th century.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 20, 2017

Family physician calls for a return to human connection

A family physician advocates for prioritizing human connection in medical practices, shifting focus from productivity to relationships. He suggests viewing the practice as a unit of care, encouraging ingenuity and problem-solving skills among employees to strengthen cultures.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateNov 20, 2017
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.