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Science News Archive 2014


Page 184 of 376

Solar energy gets a boost

Researchers have discovered a process called singlet fission that can increase solar cell efficiency by as much as 30 percent. This breakthrough has the potential to make solar cells more energy-efficient and widely adoptable.

No rest for the bleary

A Tel Aviv University study reveals that parents of newborns experience detrimental effects from frequent night wakings, leading to impaired cognitive function, negative emotions, and decreased alertness. The researchers established a causal link between interrupted sleep patterns and compromised cognitive abilities.

Antibiotics after gall bladder surgery do not appear to reduce risk of infection

A study published in JAMA found that patients who underwent gall bladder removal without postoperative antibiotic treatment did not experience a higher incidence of infections compared to those who received antibiotics. The lack of antibiotic treatment was associated with similar length of hospital stay and readmission rates.

Apple iPhone 17 Pro

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

Low doses of arsenic cause cancer in male mice

Research found that low doses of arsenic, similar to those consumed by humans, cause lung cancer in male mice. Arsenic levels above 50 ppb led to significant increases in benign and malignant lung tumors.

What aggravates hippocampal neuronal injury in acute cerebral ischemia?

Activation of extracellular signal-regulated kinase 1/2 was shown to protect against hippocampal neuronal injury in a rat model of diabetic cerebral ischemia. However, reduced extracellular signal-regulated kinase 1/2 decreased Ku70 activity and increased Bax expression, leading to increased lost hippocampal neurons.

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.

Advances in mollusk parasite culturing methods drives research

Researchers found that advances in parasite purification and culture methodologies significantly increased publication rates by 3-10 fold, leading to new molecular tools and resources. This study provides a side-by-side comparison of the publication records for four major genera of protozoan parasites affecting mollusks.

Using sand to improve battery performance

A team of researchers at the University of California, Riverside has created a novel method to produce high-performance lithium-ion battery anodes using sand. The innovative technique, which involves milling and purifying quartz from sand, results in a porous nano-silicon material that improves battery lifespan up to three times.

Six cases where big data can reduce healthcare costs

A new study outlines opportunities to reduce healthcare costs through the use of big data. Researchers highlight five key areas: high-cost patients, readmissions, triage, decompensation, and adverse events. By analyzing large datasets, clinicians can identify high-risk patients, predict readmissions, and optimize treatment for chronic ...

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.

CU-Boulder-led team identifies fossils of tiny, unknown hedgehog

A CU-Boulder-led team has discovered fossils of a tiny, unknown hedgehog species, Silvacola acares, approximately 2 inches long. The ancient creature was found in north-central British Columbia and provides insights into the evolution of North American mammal communities during the Early Eocene Epoch.

Ancient hedgehog and tapir once inhabited British Columbia

A new study reveals ancient hedgehog and tapir fossils from Driftwood Canyon Provincial Park in British Columbia, which lived around 52 million years ago. The discovery fills a significant gap in the geographic distribution of mammals during this period.

Small but plentiful: How the faintest galaxies illuminated the early universe

Researchers at Georgia Tech and UC San Diego found that tiny galaxies contributed nearly 30% of UV light during reionization, marking a significant shift from previous focus on larger galaxies. Simulations show that small galaxies' high abundance and lower gas density allowed for more UV light to escape, illuminating the early universe.

Individuals who are extremely obese have higher rates of mortality

A study published in PLOS Medicine found that class III obesity (BMI > 40 kg/m2) is linked to higher mortality rates from various diseases. The analysis of 20 prospective studies revealed a substantially increased risk of death among class III obese individuals, particularly those with heart disease and cancer.

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.

New plant species from the heart of Texas

Scientists at the University of Utah have identified a new plant species found in Valentine, Texas, as Solanum cordicitum. The genus Solanum includes over 1,500 species, including poisonous nightshades and edible crops like tomatoes and potatoes.

Transgender algae reveal evolutionary origin of sexes

A team of scientists has identified a master regulatory gene for sex determination in the green alga Volvox carteri, which shows how it evolved from a more primitive mating system in a close relative. The discovery may provide a possible blueprint for the origin of sexes in other multicellular organisms.

New research unit for dangerous hospital germs

A new research unit at Goethe University Frankfurt aims to understand the molecular basis of multi-drug resistant Acinetobacter baumannii strains, a common and deadly nosocomial pathogen. The researchers will study the bacterium's biology, infection process, and resistance mechanisms using an interdisciplinary approach.

Fluke 87V Industrial Digital Multimeter

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

Huntington's disease protein helps wire the young brain

A recent Duke University study has found that the mutated Huntington's disease protein is crucial for normal brain development and synaptic circuitry in early life. The research suggests that faulty connections may be the root cause of neurodegenerative disorders like Alzheimer's, with potential implications for treatment strategies.

Sibling composition impacts childhood obesity risk

A new study found that children in households with two siblings are more likely to be obese if both siblings are overweight, regardless of the parent's weight. The data also showed that older siblings have a significant impact on younger sibling obesity risk, with boys being more susceptible to their male older siblings.

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.

New technologies fuel patient participation and data collection in research

Researchers at Duke University Medical Center argue that new technologies, including electronic health records and wearable monitoring devices, enable patients to provide real-time information on symptoms and clinical outcomes. This shift towards patient-driven data collection enhances the accuracy and timeliness of health research.

Contradictory findings about the effect of the full moon on sleep

A Swedish study found that the full moon affects sleep patterns, with subjects averaging 20 minutes less sleep and more trouble falling asleep during this phase. However, other research has yielded mixed results, with some studies showing no correlation between lunar phases and human sleep.

A healthy lifestyle adds years to life

Researchers found that an individual with unhealthy habits, such as smoking and physical inactivity, has a 2.5-fold higher mortality risk than one who maintains a healthy lifestyle. The study's findings have significant implications for health policy and prevention strategies for non-communicable diseases.

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.

Cinnamon may be used to halt the progression of Parkinson's disease

Researchers found that ground cinnamon can reverse biomechanical changes in mice with Parkinson's disease by protecting neurons and normalizing neurotransmitter levels. Cinnamon is metabolized into sodium benzoate, an FDA-approved drug used to treat hepatic metabolic defects.

Why people with bipolar disorder are bigger risk-takers

Research found that people with bipolar disorder have stronger brain activity in the 'pleasure centre', guiding them towards riskier decisions. In contrast, a healthy control group's prefrontal cortex guides safer choices. This study aims to design and monitor therapies for bipolar disorder using neuroscience.

NASA-JAXA's new precipitation satellite sees first Atlantic hurricane

The Global Precipitation Measurement (GPM) Core Observatory followed Hurricane Arthur through its full life cycle, providing the first time a precipitation-measuring satellite has been able to capture its structures. GPM data showed Arthur's asymmetrical shape with spiral arms on the eastern side but not on the western side.

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.

Planet Mercury a result of early hit-and-run collisions

A study suggests that Planet Mercury's unusual metal-rich composition is a result of early hit-and-run collisions with larger planets. This process could have stripped away Mercury's mantle without intense shock, leaving behind a mostly-iron body.

Wet wraps cut need for drugs in kids with eczema

A new study shows wet wrap therapy can reduce eczema symptoms by 71% and eliminate the need for medications in children. The technique involves soaking, applying lotions, and dressing in wet clothing to seal in moisture, resulting in significant improvements in skin health.

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.

Carbon monoxide predicts 'red and dead' future of gas guzzler galaxy

Astronomers have discovered that ALESS65 galaxy is running out of gas at an alarming rate, with only tens of millions of years left, much faster than the Milky Way's 5 billion years. The team found similar characteristics to nearby 'starbursting' galaxies in terms of UV radiation, suggesting a unique star formation process.

HIV study leads to insights into deadly infection

Researchers at the University of Adelaide have discovered a peptide in semen that enhances HIV infection by up to 10,000 times. The findings suggest that healthy epithelial cells are resistant to the toxicity of these protein enhancers.

Neuroprotective effects of low concentration of lithium

The study found that low concentrations of lithium carbonate had a protective effect on SH-SY5Y cells, with reduced expression levels of pyruvate kinase 2 and calmodulin 3. Additionally, western blot analysis revealed increased expression of stress proteins GRP94 and HSP27.

The impact of big data on health care: Health Affairs' July issue

Analyzing six use cases for big data in healthcare, researchers found strong opportunities for cost savings in high-cost patients, readmissions, and treatment optimization. However, bed shortages were associated with higher mortality rates, highlighting the need for a public health approach to address this issue.

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Preterm babies more likely to survive in larger newborn care units

A new study published in BMJ Open found that premature newborns are 32% less likely to die if admitted to high volume neonatal units compared to low volume units. High volume units provide more experience and resources for clinicians, leading to better clinical outcomes for vulnerable infants.

NCI study finds extreme obesity may shorten life expectancy up to 14 years

A recent study found that adults with extreme obesity are at a higher risk of dying from cancer and other causes, including heart disease and diabetes. The analysis of pooled data from 20 large studies revealed that people with class III obesity had a significant reduction in life expectancy compared to those with normal weight.

The tortoise and the hare: A sex difference in marathon pacing

Men are more likely to slow their pace in the marathon, with a 15.6% average slowing in the second half compared to 11.7% for women, according to a Grand Valley State University study. Physiological factors, such as men's use of less fat and more carbohydrate during endurance exercise, may contribute to this sex difference.

Mathematical model illustrates our online 'copycat' behavior

A new study reveals that users tend to be swayed by recent activity of their friends on Facebook, rather than relying on best-seller lists. The researchers developed a mathematical model to capture the dynamics at play, finding that the 'copycat' tendency plays a strong role in online behavior.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

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.

Annals of Internal Medicine tip sheet for July 8, 2014

The US Preventive Services Task Force recommends against screening for asymptomatic carotid artery stenosis due to its high rate of false positives. A systematic review found no evidence that screening improves outcomes, but also identified a small risk of harms such as stroke and mortality.

$12.6 million NIH grant to study genetics of Alzheimer's disease

Researchers at the University of Pennsylvania School of Medicine will analyze whole exome and genome sequence data from 6,000 volunteers with Alzheimer's disease to identify rare genetic variants. The goal is to find new therapeutic targets that can reduce the economic and human burden caused by this devastating disease.

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.