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Science News Archive January 2013


Page 21 of 27

The farthest supernova yet for measuring cosmic history

A Type Ia supernova with a redshift of 1.71, dating back 10 billion years, has been detected using the Hubble Space Telescope's data by the Supernova Cosmology Project. This discovery provides valuable insights into the expansion history of the universe and the nature of dark energy.

Apple iPhone 17 Pro

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

Deal or no deal: 5 year olds make smart decisions in games of risk

Children aged 5 and over demonstrate rational decision-making skills when making choices to maximize profits, considering odds of winning and loss. Younger children struggle with similar tasks, exhibiting a 'better safe than sorry' approach that can lead to judgment errors.

Faulty behavior

Researchers at Caltech and JAMSTEC developed a new fault model that shows stable segments can behave differently during earthquakes, leading to larger events. This challenges current assumptions about seismic hazard in areas like the San Andreas Fault.

R U eating healthy 2day?

A one-year study found that teen-focused text messages addressing realistic lifestyles and behaviors increased motivation for healthier habits. Researchers tested 177 teens, discovering an active voice referencing teens and achievable behaviors were most effective.

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.

Particles of crystalline quartz wear away teeth

The study found that quartz particles can remove pieces of tooth enamel at extremely low forces, making them a significant contributor to dental microwear. In contrast, fossilized plant remains had a minor effect on tooth surfaces, leaving only cosmetic rubbing marks.

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.

Mussels inspire innovative new adhesive for surgery

A new adhesive, iCMBAs, adheres well in wet environments, has controlled degradability, improved biocompatibility, and lower manufacturing costs. The bioahesives are non-toxic, control inflammation, and can be tailored to degrade over specific periods.

Spin and bias in published studies of breast cancer trials

A recent study found that a third of trials with no statistically significant benefit reported on secondary outcomes to influence results. Two-thirds of trials with serious side-effects under-reported them, particularly when the treatment showed a positive outcome. The authors call for improved reporting guidelines.

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.

Multiple sclerosis drug may one day treat colorectal cancer

A new study found that fingolimod, a multiple sclerosis drug, could potentially eliminate or reduce the progression of colitis-associated cancer by decreasing inflammation and blocking key signaling molecules. The researchers used animal models to demonstrate the efficacy of the drug in reducing CAC development and progression.

Networking ability a family trait in monkeys

A study on rhesus macaques found that their social network behavior is influenced by genetics and heritability. Pro-social monkeys with strong networks had greater reproductive success, while aggression had a weaker link to heritability.

Making whole wheat bread taste and smell more appetizing

Researchers found that adding ferulic acid to white flour dough can transform its taste and smell into a more appetizing version, similar to whole wheat bread. This discovery could help bakers create healthier, more palatable options for consumers.

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.

Baby sharks stay still to avoid being detected by predators

Researchers found that embryonic sharks can detect electric fields emitted by potential predators and respond by reducing respiratory movements. This innate avoidance response allows them to recognize dangers and try to escape, even in vulnerable egg cases.

Fusion gene contributes to glioblastoma progression

Researchers identified a fusion between FGFR3 and TACC3 genes in human glioblastoma samples, which promoted tumor growth and progression in a mouse model. The fusion protein escaped regulation by miR-99a, indicating its potential as a prognostic marker and drug target for glioblastoma treatment.

A new treatment for kidney disease-associated heart failure?

Researchers at the University of Tübingen found that spironolactone reduces vascular calcification in klotho-hypomorphic mice, a model for chronic kidney disease. This treatment also increases the life span of these mice. The findings have implications for treating cardiovascular mortality in CKD patients.

BPA linked to potential adverse effects on heart and kidneys

A study analyzing national survey data found a biomarker for higher risk of heart and kidney disease in children and adolescents associated with BPA exposure. The study suggests that even low levels of BPA increase oxidative stress and inflammation, promoting protein leakage into the urine.

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.

The Teotihuacans exhumed their dead and dignified them with make-up

The Teotihuacan civilization used cosmetics as part of an after-death ritual to honour their city's most important people. The analysis of cosmetic remains found in urns reveals the social status of the deceased, with only high-ranking individuals buried with these products.

Protective communities may reduce risk of drinking in teens

Researchers found that living in a caring community can help curb teenage alcohol use, while hanging out with antisocial peers can increase the risk. The study analyzed over 200,000 students and discovered that individual, family, and peer risk factors as well as community protective factors moderately predicted alcohol use.

Newly found 'volume control' in the brain promotes learning, memory

Researchers at Georgetown University Medical Center have discovered a new mechanism that regulates neuronal activity in the hippocampus, allowing for efficient learning and memory processing. The study reveals that synapses between different groups of neurons act as 'volume control', maintaining optimal levels of neurotransmission.

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.

Study examines how news spreads on Twitter

A recent study by University of Arizona professor Sudha Ram analyzed the Twitter activity of 12 major news organizations over a six-month period. The research found that articles on Twitter dissipate fairly quickly, with retweeting typically ending between 10 and 72 hours after an article is originally shared. The BBC had the maximum r...

Stem cells may hold promise for Lou Gehrig's disease

Researchers found that stem cell transplantation significantly extended the lifespan of mice with ALS by 20 days and improved their neuromuscular function by 15 percent. This breakthrough study suggests that stem cells may represent a promising avenue for effective cell-based treatment for ALS and other neurodegenerative diseases.

High fiber diet prevents prostate cancer progression

A high-fiber diet, rich in inositol hexaphosphate (IP6), can control prostate cancer progression by inhibiting tumor growth and slowing glucose metabolism. Researchers found that IP6 reduced tumor volumes and slowed glucose metabolism in prostate cancer models.

UW, PNNL tackle big data with joint computing institute

Researchers at UW and PNNL will collaborate on advanced computer system designs, accelerating data-driven scientific discovery and improving computational modeling and simulation. The institute aims to solve pressing problems like climate change, energy management, and disease determination.

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.

Tree seeds offer potential for sustainable biofuels

Seeds from the Indian mahua and sal trees have shown promising thermal efficiency comparable to biodiesel, producing lower emissions of carbon monoxide and waste hydrocarbons. The use of tree seed oils could also provide additional benefits such as lower viscosity and greater volatility.

Brown eyes appear more trustworthy than blue

A study published in PLOS ONE found that people judge men's trustworthiness based on face shape and eye color, with brown-eyed faces appearing more trustworthy than blue eyes. The researchers tested various combinations of eye color and face shape to determine which features contributed most to the perception of trustworthiness.

Scientists use marine robots to detect endangered whales

Two ocean-going robots, equipped with acoustic monitoring instruments, detected nine endangered North Atlantic right whales in real-time. The gliders' data helped NOAA establish a dynamic management area, asking mariners to slow their vessel speed to avoid striking the animals.

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.

Not all stem cells are equally efficient for use in regenerative medicine

Scientists at the University of Granada have found that only a specific group of cord blood stem cells (CB-SC) maintained in culture are useful for therapeutic purposes. The researchers identified Wharton's jelly stem cells (HWJSC) as the most suitable subgroup, which can develop into several types of tissue and modulate immune responses.

NTU study looks at national attitudes towards homosexuals

The NTU study found that people with higher levels of education and freethinkers tend to have more positive attitudes, while those who have had higher interpersonal contact with gay men and lesbians are also more accepting. The study showed a small but significant trend toward greater tolerance of homosexuals.

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.

A history lesson from genes

Scientists have developed a software model called TreeMix that compares genetic variants across populations to infer history of population splits and mixtures. This new approach reveals complex relationships among human populations, including interbreeding with wolves in dog breeds.

Whales' foraging strategies revealed by new technology

Researchers are studying filter-feeding whales using multisensor tags, providing insights into their diving and foraging behaviors. The findings show that different whale species have distinct feeding strategies, with some catching elusive prey and others filtering slowly through large patches of water.

JCI early table of contents for Jan. 9, 2013

Researchers found a small peptide that blocks antibody recognition of desmogleins, improving cell-cell adhesion and preventing skin blistering in pemphigus vulgaris. Additionally, spironolactone reduced vascular calcification in kidney disease mice, increasing their life span. A glioblastoma fusion gene promoted tumor growth and progre...

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.

Genetic form of anemia offers new avenue to treating drug-resistant tumors

Researchers have found a novel approach to treating hypoxic solid tumors by using sickle-shaped red blood cells to target and destroy tumor cells and surrounding blood vessels. The sickle cells' unique properties allow them to block tumor blood supply and release toxic residues that promote tumor cell death.

Researchers reveal most effective treatment for common kidney disorder

A UK-wide clinical trial has identified a treatment approach that significantly reduces the risk of kidney failure in patients with membranous nephropathy. The study, published in The Lancet, recommends alternating monthly cycles of prednisolone and chlorambucil as the most effective treatment for this common type of kidney disease.

UCSF Helen Diller Cancer Center awarded $36 million grant

The UCSF Helen Diller Family Comprehensive Cancer Center has received a $36 million grant from the National Cancer Institute to fund its research programs and clinical trials. The center's excellence in laboratory, clinical, and population-based research was recognized by the NCI.

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.

Sickle cells show potential to attack aggressive cancer tumors

Researchers at Duke University Medical Center have developed a way to deploy sickle-shaped red blood cells to fight cancer tumors by exploiting their ability to adhere to and block the blood vessels surrounding hypoxic tumors. The treatment causes tumor cell death through oxidative stress, resulting in delayed tumor growth.

Bugs need symbiotic bacteria to exploit plant seeds

Researchers discovered that firebugs and cotton stainers rely on symbiotic bacteria to thrive on Malvaceous plant seeds. The bacterial community helps provide essential nutrients and detoxify toxic chemicals, making it a key factor in the bugs' survival and success.

Guaranteed delivery -- in ad hoc networks

A new algorithm for message dissemination in decentralized networks is faster and deterministic, guaranteeing delivery to all nodes. The algorithm's efficiency relies on the collective action of nodes performing simple local tasks, emerging into a global behavior.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Dark energy alternatives to Einstein are running out of room

Research by Rodger Thompson finds that a popular dark energy alternative does not fit newly obtained data on the proton to electron mass ratio. This impact our understanding of the universe's accelerating expansion and point to a new direction for further study, potentially leading to a return to Einstein's General Relativity.

NASA sees Tropical Cyclone Narelle intensifying

Tropical Cyclone Narelle is intensifying as it moves southwest paralleling the Western Australian coastline, according to NASA satellite imagery. The cyclone is expected to strengthen over the next two days, bringing gales with gusts of up to 100 kph and heavy rainfall along the Pilbara coastline.

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.