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Science News Archive February 2014


Page 25 of 30

National poll shows public divided on genetic testing to predict cancer risk

A national poll shows that only 35% of respondents would seek aggressive preventive treatment if they had a family history of cancer and genetic testing indicated a predisposition to cancer. Despite current laws prohibiting discrimination, concerns about employment and insurability remain a major barrier to genetic testing.

Electronically controlled drugs could minimize side effects

Researchers have developed electronically controlled drugs that can minimize side effects by releasing medication in response to specific cues. These tailored approaches could be useful in treating conditions such as epilepsy, where medication could be released at the onset of a seizure.

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.

Female mice prefer unfamiliar male songs

A study found that female mice prefer songs from males of different families, suggesting an innate preference for avoiding close relatives. This preference is influenced by the female's reproductive cycle and scent-based cues from the male.

'False memories' -- the hidden side of our good memory

Researchers found that children's brains are less prone to creating false memories due to a less efficient semantic process. Adults, however, are more likely to generate false memories as their brain automatizes the process, making it less reliable.

NASA boards the 3-D-manufacturing train

NASA is exploring the potential of additive manufacturing, also known as 3D printing, to create customized spacecraft and instrument components. The agency has launched several formal programs to prototype new tools using this emerging technology.

A 'smoking gun' on the Ice Age megafauna extinctions

Scientists discovered that the mass extinction of large mammals after the latest Ice Age was linked to changes in vegetation, particularly the loss of protein-rich forbs. This finding provides a new understanding of the role of climate change in shaping ecosystems during the Ice Age.

Mass extinction may not cause all organisms to 'shrink'

Scientists analyzed bryozoan species before and after a mass extinction event, finding no significant change in body length. Maximum colony size declined in three out of four surviving types, suggesting the Lilliput effect may not be universal across organisms.

Apple iPhone 17 Pro

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

Wider-faced dates more attractive as short-term mates

A recent study published in Psychological Science found that women are drawn to men with wider faces, which is associated with increased dominance. The researchers studied speed-dating events and found that women were more likely to choose men with higher facial width-to-height ratio (fWHR) for short-term relationships.

Time is of the essence

A Weizmann Institute of Science study reveals that daily fluctuations in triglycerides in the liver are driven by internal 'body clocks' and timing of meals. Researchers found that restricting nighttime feeding led to a 50% decrease in liver TAG levels, suggesting that meal times can affect lipid accumulation.

Heavy metal in the early cosmos

Numerical simulations charting the universe's forces in its first hundreds of millions of years reveal subtle effects governing galaxy evolution, including incomplete mixing and chaotic supernova ejections. The findings shed light on metal formation and distribution in the earliest galaxies.

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.

Simulated blindness can help revive hearing, researchers find

Neuroscientists discovered that minimizing vision for a week can enhance the brain's processing of sound. This finding may help those experiencing hearing loss regain more use of their sense. The study suggests that certain neural connections in the brain can be reactivated to support lagging senses.

Paradox of cigarette sales in pharmacies focus of new movement

Pharmacies sell cigarettes despite being a leading cause of preventable death; CVS Caremark's decision aims to reduce smoking prevalence through eliminating tobacco product sales. The move aligns with efforts to strengthen the role of pharmacies in promoting health and could spark other retailers to follow suit.

Durable end to AIDS will require HIV vaccine development

A safe and effective HIV vaccine is necessary to control and potentially end the HIV/AIDS pandemic. Recent scientific advances offer promising areas for further exploration, including the discovery of broadly neutralizing antibodies and improved understanding of T-cell responses.

£4 million to tackle spread of bacterial infections

The University of Liverpool has launched an Open Innovation Hub for Antimicrobial Surfaces to design and develop new anti-infective materials. The hub aims to combat the spread of bacterial, viral, and fungal infections in various sectors, including healthcare and food processing.

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.

Policymakers and scientists agree on top research questions

Concord found between professional groups on which questions are most important for natural resource management. The most critical questions relate to the quantity and quality of surface and groundwater necessary for human populations and ecosystem resilience.

Towards tailor-made adhesives

French scientists studied soft adhesive materials' inner structure and response to traction during the debonding process. Their findings aim to improve models of adhesive performance by understanding energy dissipation and material deformation.

World temperature records available via Google Earth

Climate researchers at the University of East Anglia have made world temperature records available via Google Earth, allowing users to zoom in on 6,000 weather stations and view monthly, seasonal, and annual temperature data. The dataset combines records from 150 years ago, providing valuable insights into climate change.

Pinpointing the brain's arbitrator

Researchers have pinpointed areas of the brain that act as an 'arbitrator' between habitual and goal-directed systems. This mechanism ensures optimal control over behavior by weighing the reliability of predictions from each system.

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.

Nerve block eases troublesome hot flashes

A randomized, controlled trial shows that injecting anesthetic near a nerve bundle in the neck significantly reduces moderate to severe hot flashes in postmenopausal women. The treatment cut the number of hot flashes in half and reduced their intensity by 38% compared to a sham injection.

Study untangles divergent US job-tenure patterns

A study reveals that average US job tenure has been surprisingly stable over time, but there are divergent trends among men and women. Married mothers experienced a significant increase in job tenure due to changes in labor market expectations and workplace accommodations.

Whales and human-related activities overlap in African waters

A WCS-led satellite tracking study found humpback whales share breeding waters with offshore oil rigs, major shipping routes, and toxicants off the coast of western Africa. The researchers identified new parts of the whales' breeding range and migratory routes to sub-Antarctic feeding grounds.

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.

Health Affairs examines successes and missing links in connected health

Researchers examined the successes of connected health initiatives, such as Kaiser Permanente's integration of technology into patient care and the use of mobile phones to manage diabetes. They also found that facilities adopting telemedicine could reduce hospitalizations and costs by $120,000 annually.

Uncovering the drivers of honey bee colony declines and losses

A study reveals that long-term declines in honey bee colonies are attributed to economic and political pressures, as well as pests, pathogens, and poor management practices. The research also highlights the importance of standardized data collection and further research into the impact of agricultural intensification on this species.

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.

Tree roots in the mountains 'acted like a thermostat' for millions of years

Researchers found that tree roots in mountainous ecosystems can regulate carbon dioxide levels by breaking down rock into component parts. This process, called weathering, draws carbon dioxide out of the atmosphere and cools the planet, potentially preventing catastrophic overheating or cooling over millions of years.

New analysis of endometriosis could help diagnoses, treatments

Researchers have identified a distinctive profile of cytokine activity associated with certain symptoms of endometriosis, including ovarian and rectovaginal lesions. This signature is negatively correlated with patient fertility and has previously been implicated in the disease.

Study shows yogurt consumption reduces the risk of type 2 diabetes

A large study published in Diabetologia found that higher yogurt consumption was associated with a reduced risk of developing type 2 diabetes. The researchers found that consuming low-fat fermented dairy products, such as yoghurt, reduced the relative risk of diabetes by 24% overall.

Amputee feels in real-time with bionic hand

Dennis Aabo Sorensen, a Danish amputee, regained his sense of touch with a revolutionary bionic hand. The prosthetic hand was surgically wired to nerves in his upper arm, allowing him to feel objects intuitively and identify textures.

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.

Longevity mutation found in flies far and wide

Researchers discovered a widespread longevity mutation in fruit flies, found in 17 of 22 lines gathered from around the globe. The mutation, called Hoppel, was linked to increased life span and reproductive fitness in heterozygous flies.

New stem cell research removes reliance on human and animal cells

A new study has developed a scaffold of carbon nanotubes that allows for the safe growth of human stem cells in the laboratory. This breakthrough technology could pave the way for revolutionary treatments for diseases such as Parkinson's, diabetes, and heart disease.

Celestron NexStar 8SE Computerized Telescope

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

One NASA image, 2 Australian tropical lows: Fletcher and 95S

Two low-pressure areas, System 94P (Fletcher) and 95S, were detected by NASA's Aqua satellite over Australia. Fletcher remains in the Gulf of Carpentaria with disorganized convection, while System 95S develops near Darwin with heavy rainfall potential.

Is the male or female brain more vulnerable to triggers of violent behavior?

The article 'Not Hardwired: The Complex Neurobiology of Sex Differences in Violence' describes the complex biological mechanisms in the brain that lead to the development of behaviors. Brain structure, function, and connectivity can differ between men and women, affecting how they respond to stressful or abusive triggers.

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.

New evidence shows increase in obesity may be slowing, but not by much

A new study by University of Illinois professor Ruopeng An found that the prevalence of adult obesity has been slowing, but only slightly, with increases seen in those classified as morbidly obese. The study used data from the National Health and Nutrition Examination Survey (NHANES) to analyze BMI trends between 2000 and 2012.

Will your child be a slim adult?

A novel study found that adults who reported lower childhood experiences related to healthy eating, physical activity, and social connections were more likely to have a slim adult life. Conversely, those with common unhealthy childhood experiences such as poor nutrition, lack of exercise, and bullying had higher adult BMIs.

Food insecurity leads to increased incidence of tuberculosis in Zimbabwe

A study by Canadian researchers found a significant association between food shortages and rising TB cases in Zimbabwe, particularly among HIV-positive individuals. The study suggests that adequate food availability is crucial in controlling TB incidence, especially in areas with high HIV prevalence.

Decriminalizing pot may land more kids in the ER

A study published in Annals of Emergency Medicine found that states decriminalizing marijuana saw a dramatic increase in children requiring medical intervention at emergency rooms. High-dose edible products containing tetrahydrocannabinol were identified as a significant contributor to these incidents.

New study finds early universe 'warmed up' later than previously believed

A Tel Aviv University study suggests that cosmic heating occurred later than previously believed, allowing astronomers to detect the earliest black holes by searching for radio waves in space. This finding has significant implications for our understanding of the universe's origins and the history of cosmic expansion.

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.

Falcon feathers pop-up during dive

Researchers studied peregrine falcons' diving flight using high-speed cameras and wind tunnel models. They found that feathers may pop-up to prevent local flow separation, enabling the birds to reach high speeds while maintaining maneuverability.

How to tell when bubbly goes bad before popping the cork

Researchers developed a mathematical model that predicts the shelf life of sparkling wines based on storage temperature, which can help wineries and consumers determine when bubbly has gone bad. The study also found that refrigerating sparkling wines almost completely prevents browning.

Crossover sound

Scientists at Berkeley Lab have provided the first 'unambiguous demonstration' of phonon-based lasers by observing coherent phonon transport in superlattices. This breakthrough could lead to new advances in heat transfer applications and the development of phonon lasers.

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.

Graphene 'sandwich' improves images of biomolecules

Researchers at the University of Illinois Chicago have developed a graphene 'sandwich' that enables atomic-level imaging of biomolecules in their natural state. This breakthrough improves resolution and minimizes damage to samples, opening up analysis of difficult-to-image biological samples.

Quarks in the looking glass

Physicists at Jefferson Lab have made a new determination of an intrinsic quark property, setting new limits for energies needed to access physics beyond the Standard Model. The experiment probed mirror symmetry in quarks, revealing a previously isolated component of the weak force.

A short stay in darkness may heal hearing woes

Researchers at the University of Maryland found that adult mice experienced improved hearing after simulated blindness, which could lead to new treatments for hearing loss and tinnitus. The study showed that temporary vision loss can rewire the brain's auditory system in adults, allowing for sharper sound discrimination and sensitivity.

Durable end to AIDS will require HIV vaccine development

A safe and effective HIV vaccine is necessary to control and end the AIDS pandemic, according to a new commentary by NIAID Director Anthony S. Fauci. Recent advances in understanding broadly neutralizing antibodies and T-cell responses offer promising areas for further exploration.

Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.