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Science News Archive 2019


Page 115 of 486

Published studies may exaggerate the effect of burnout on quality of patient care

A systematic review suggests that published studies on burnout and patient care quality may exaggerate the magnitude of the effect. The review analyzed 145 study populations and found that many results were due to biases in measurement and analysis, leading to overestimation of the relationship between burnout and poor quality care.

Meningioma molecular profile reliably predicts tumor recurrence

Researchers at Baylor College of Medicine developed a reliable molecular profile for meningiomas, predicting tumor recurrence with high accuracy. The study identified a unique characteristic of aggressive meningiomas, the dysfunction of the DREAM complex, which contributes to malignant transformation.

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.

Seabird spatial cognition and navigation

Seabirds (Manx shearwaters) use spatial cognition to navigate back to their home colonies with accurate directional knowledge. However, they do not encode specific routes or anticipate obstacles encountered during foraging trips.

Early hunter-gatherers interacted much sooner than previously believed

A recent study reveals that early hunter-gatherers on opposite sides of North America interacted much sooner than previously believed. Analysis of human remains, stone tools, and a copper band found in an ancient burial pit in Georgia suggests direct trade networks between the Great Lakes region and the coastal southeast United States....

Disappearing Peruvian glaciers

A team of researchers found that Peruvian glaciers have retreated by 30% since 2000, with the rate of retreat accelerating since 2013. The increased melting is linked to El Niño events and has significant implications for water supply, agriculture, and natural hazards.

Cell death blocker prevents healthy cells from dying

A new compound has been developed that can prevent unwanted cell death, which could improve recovery from medical emergencies and procedures. The study's findings suggest the potential for using this 'cell death blocker' to treat conditions like cardiovascular diseases and degenerative disorders.

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.

Novel compound interrupts malaria parasite's lifecycle

Researchers have identified a novel compound that selectively inhibits the cyclin-dependent-like protein kinase PfCLK3 in Plasmodium falciparum, disrupting its lifecycle. The molecule TCMDC-135051 has shown promise in treating malaria and preventing transmission to vector insects.

Study: More behavioral health care linked to small drop in gun-related suicides

A new study published in Health Affairs found a 10% increase in behavioral health workforce jobs is associated with a 1.2% decrease in firearm suicide rates. The researchers suggest that investing in gun safety initiatives may be more effective in reducing suicides, highlighting the need for additional measures to curb gun-related deaths.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Drops in income may not only hurt the wallet, they may harm the brain

A study published in Neurology found that young adults experiencing annual income drops of 25% or more are at risk of having thinking problems and reduced brain health in middle age. Participants with higher income volatility during peak earning years showed worse brain aging, including smaller total brain volume and reduced connectivity.

Health risks of electronic cigarettes

A study found that e-cigarette smoke induces lung adenocarcinoma and bladder urothelial hyperplasia in mice. Exposure to e-cigarette juice led to a high incidence of tumors, while filtered air exposure had minimal effects.

A timekeeper for siesta

The study reveals that the compound eyes of fruit flies play a crucial role in synchronizing their circadian clocks with light exposure. As daylight periods increase, the evening activity peak is delayed and the 'siesta' period is extended, highlighting the flexibility of the circadian clock mechanism.

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.

Cancer patients who exercise have less heart damage from chemotherapy

Exercise can counteract the negative effects of cancer treatments on the cardiovascular system and relieve symptoms such as nausea and fatigue. A tailored exercise prescription is recommended for each patient based on individual characteristics, personal history, and cancer treatment.

Economic impacts of natural disasters

Researchers analyze data on international emergency events between 1960 and 2015, revealing growing hazards posed by severe events linked to climate change. Economic damages rise sharply worldwide, including in temperate areas, as death tolls from extreme temperature events increase in poor and rich countries.

Apple iPhone 17 Pro

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

Analysis of US labor data suggests 'reskilling' workers for a 'feeling economy'

The article discusses how the rise of AI will shift jobs towards feeling tasks, making emotional intelligence and interpersonal skills vital for success. Research by the University of Maryland suggests that companies and individuals must adapt to this new economy, where firms need to recruit people who excel in feeling tasks.

Ancient farming in Maya wetlands

Researchers discovered large-scale polycultural agricultural systems for growing crops like avocado and maize in Maya wetlands. The findings suggest these fields were adaptations to major shifts in Maya civilization as food demand increased during the Late Classic period.

A new mathematical approach to understanding zeolites

Researchers at MIT have developed a mathematical approach to understanding zeolites, revealing why only a small subset has been discovered or made. The graph-based model predicts which pairs of zeolite types can be transformed from one to the other, opening doors for new pathways in production and potential discoveries of novel materials.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Climate warming and soil nutrient balances

Under climate warming up to 1.7 °C, sedge plants prioritize root growth over shoot growth due to nitrogen supply limitations; however, as warming intensifies, shoots become more prominent, indicating nitrogen supply now outpaces plant demand.

New study is 'chilling commentary' on future of antibiotics

A new analysis found that the current annual US sales of new antibiotics to treat carbapenem-resistant Enterobacteriaceae (CRE) is $101 million, significantly short of the needed $1 billion. This shortfall threatens the financial viability of new antibiotic development and may lead to reduced treatment options for patients. Researchers...

Was early stick insect evolution triggered by birds and mammals?

A new phylogenomic tree reveals the early evolution of stick insects was likely triggered by birds and mammals. The study suggests that their remarkable camouflage abilities evolved as an adaptation to avoid predators, with most old lineages emerging after the dinosaurs became extinct 66 million years ago.

Groundbreaking method detects defective computer chips

Researchers developed ptychographic x-ray laminography to validate chip integrity without damaging them. The method generates high-resolution 3D images of chips from diffraction patterns, allowing companies to verify design specifications and detect manufacturing errors.

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.

Revamped crew scheduling model cuts airline delays by as much as 30%

A new mathematical optimization model introduced in the INFORMS journal Transportation Science can reduce extreme flight delays by as much as 20-30% on average, while increasing crew salary costs by only 2-3%. This approach allows airlines to balance delay reduction with buffer placement costs.

Picoscience and a plethora of new materials

Researchers at Yale University are developing new materials that can mimic neurons, compute with magnets, and calculate using quantum mechanics. The team used a precision measurement technique to create artificial crystals composed of elements from the periodic table.

The cholera bacterium can steal up to 150 genes in one go

Vibrio cholerae uses its type VI secretion system (T6SS) to compete with other bacteria and acquire new genetic material, leading to rapid evolution and pathogen emergence. The bacterium can steal up to 150,000 nucleic acid base pairs, or roughly 150 genes, in a single attack.

Dual approach needed to save sinking cities and bleaching corals

A new study by Duke University and Fudan University suggests that local conservation efforts can significantly buffer the impacts of climate change, buying cities time to adapt. Local interventions have promoted coral recovery in Florida Keys and restored seagrass beds in Chesapeake Bay.

Cesium vapor aids in the search for dark matter

Physicists at Mainz University have developed a new method to detect dark matter using cesium atom vapor and atomic spectroscopy. By searching in a previously inaccessible frequency range, they were able to formulate new restrictions on the nature of dark matter.

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Atopic dermatitis: How allergens get on our nerves

Researchers have identified a key mechanism underlying atopic dermatitis, a chronic inflammatory skin disease affecting 20% of children and 5% of adults. The study reveals that mast cells and sensory neurons interact in 'sensory neuroimmune units' to detect allergens, triggering inflammation.

Mason scientists invent new technology to streamline drug discovery

George Mason University researchers have discovered the exact location where two proteins responsible for hiding cancer cells from the immune system bind. The protein painting technology enables rapid performance testing of drugs, producing results in several days instead of years.

Computer model helps make sense of human memory

A new study from OIST and RIKEN has developed a computational model that demonstrates the importance of inhibitory circuits in brain function. The model shows that inhibitory neurons play a key role in associative memory, allowing patterns to be stored in memory for longer periods.

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.

Navigating 'Neuralville': Virtual town helps map brain functions

A virtual town called 'Neuralville' was created to test brain function, revealing specialized cortical scene-selective regions for recognizing places and navigating through environments. The study has implications for brain rehabilitation methods and improving computer vision systems.

Study provides insights on treatment and prognosis of male breast cancer

A recent analysis reveals that treatment of male breast cancer has evolved over the years, with certain patient- and tumor-related factors linked to better survival. The study found that older age, black race, multiple comorbidities, high tumor grade, and undergoing total mastectomy were associated with worse overall survival.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

A Canadian essential medicines list must be evidence-based

A national essential medicines list in Canada could reduce inequitable access to medication, improve health outcomes, and optimize spending on medicines. The study highlights the importance of an independent decision-making body, selection criteria based on clinical and cost-effectiveness, and clear communication with stakeholders.

New test for thyroid cancer could prevent unnecessary surgery

Researchers developed a new metabolic thyroid test that is faster and more accurate than current diagnostic tests. The test uses mass spectrometry imaging to identify diagnostic fingerprints produced by cancerous cells, preventing thousands of unnecessary surgeries each year.

Soft robot programmed to move like an inchworm

Researchers at the University of Toronto have created a miniature soft robot that can crawl with inchworm-like motion using electrothermal actuators. The technology could revolutionize industries such as manufacturing, security, and wearable electronics.

Big data reveals extraordinary unity underlying life's diversity

A new study using big data reveals that many fundamental features of life, such as metabolism and growth, follow consistent relationships with body size across all creatures. This challenges the Metabolic Theory of Ecology and suggests a deep understanding of universal laws governing life's diversity.

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Modeling terror group lethality

A new model accurately estimates terror group lifetime lethality from initial attacks, potentially identifying highly destructive groups before they mature. The model conceptualizes terror groups as businesses constrained by resources, explaining lethality better than standard models.

CTE risk, severity increases with years playing American football

A new study quantifies the strength of relationship between playing American football and chronic traumatic encephalopathy (CTE) severity. The study found that each additional year played increased CTE risk by 30% and severe CTE odds doubled for every 5.3 years played.

Models designed to predict when and how the roads of Bizkaia will deteriorate

Heriberto Pérez's research developed deterioration models using International Roughness Index (IRI) and Coefficient of Transverse Friction (skid resistance), enabling predictions on road conditions after vehicle use. The models provide a strategic approach to optimize repair costs and improve pavement durability.

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.

Not long ago, the center of the Milky Way exploded

A massive explosion occurred in the center of the Milky Way 3.5 million years ago, creating two enormous 'ionisation cones' that sliced through the galaxy and impacted the Magellanic Stream. The blast was so powerful it lasted for 300,000 years and was triggered by nuclear activity associated with the black hole.

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.

Determining the activity of noble-metal-free catalyst particles

Researchers have created a new measurement method to determine the electrochemical activity of individual noble-metal-free nanoparticle catalysts. This breakthrough could lead to more efficient hydrogen production through water electrolysis by using affordable alternatives to precious metal catalysts.