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Science News Archive January 2014


Page 21 of 28

Kids have skewed view of gender segregation

A new study by MSU scholar Jennifer Watling Neal found that children believe gender plays a larger role in friendship than it does. This skewed perception can impact their relationships and future interactions with peers and colleagues.

Red blood cells take on many-sided shape during clotting

Researchers at Penn Medicine discovered a new shape of red blood cells when they are compressed during clot formation. The polyhedral structures, also known as polyhedrocytes, are tightly packed within the clot interior and may help explain why clots develop resistance to thrombolytic agents.

Study of Nepalese pilgrims challenges diagnosis of acute mountain sickness

A University of British Columbia study challenges the Lake Louise Score Questionnaire's reliability in diagnosing acute mountain sickness. Removing sleep quality from the questionnaire increased its accuracy, suggesting that unnecessary treatments may be administered to some individuals and others may not receive necessary treatment.

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.

Why is type 2 diabetes an increasing problem?

A new study has found that genetic regions associated with increased risk of type 2 diabetes were unlikely to have been beneficial to people at stages through human evolution. The researchers tested this theory by examining 65 genetic regions and found no evidence to support the thrifty gene hypothesis.

Indigenous groups more vulnerable in the fight against flu

A recent study published in Proceedings of the National Academy of Sciences found that some Indigenous people have limited immunity response to flu effects. The research suggests ethnic differences in immune responses to the H7N9 virus, which can lead to severe outcomes.

Apple iPhone 17 Pro

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

Marine tubeworms need nudge to transition from larvae state

Researchers at UH Manoa discovered a biological trigger behind marine biofouling, where certain bacteria induce larval metamorphosis. This process has implications for boat owners and the mariculture industry, which rely on larval settlement to create new communities.

Extraordinary sensors pushed to their boundaries

Researchers from EPFL have created a new method to eliminate external noise in nanomechanical oscillators, allowing for nearly perfect ultra-efficient sensors. This breakthrough enables the detection of very small particles and masses with high accuracy, opening up new frontiers in fundamental science and applied studies.

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.

Cancer drug protects against diabetes

Researchers have discovered that a cancer drug can protect the insulin-producing cells in the pancreas and prevent the development of type 1 diabetes in mice. The medication works by reducing sterile inflammation and delaying cell destruction. This finding is a step towards developing a preventive treatment for type 1 diabetes.

War elephant myths debunked by DNA

A team of researchers at University of Illinois used DNA analysis to clarify the details of the Battle of Raphia, a historic battle between Asian and African elephants. The study found that the Eritrean elephants were actually savanna elephants with low genetic diversity, which is expected for such a small population.

Scientists uncover new target for brain cancer treatment

Researchers found that mda-9/syntenin is a driving force behind glioblastoma's growth and invasion. The study identified molecular targets that could lead to new therapies and potentially use the gene to monitor disease progression.

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.

New study: US power plant emissions down

A new study found that US power plant emissions decreased by 20-40% since the switch to natural gas with combined cycle technology, releasing significantly less carbon dioxide, nitrogen oxides, and sulfur dioxide. This shift in energy production led to a reduction of 23% less CO2 in the atmosphere last year.

Fusion instabilities lessened by unexpected effect

Researchers at Sandia National Laboratories successfully reduced magneto-Rayleigh-Taylor instabilities by adding a secondary magnetic field created by a Helmholz coil to their experiments. This modification allowed the liner to compress fuel more effectively, potentially leading to controlled nuclear fusion.

New imaging technique signals a breakthrough in the treatment of IBS

Researchers at University of Nottingham develop novel MRI method for diagnosing and treating Irritable Bowel Syndrome (IBS), allowing continuous bowel imaging with no risk to patients. The technique enables measurement of colon volumes, transit times, and effects of FODMAPs on gut health.

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.

UNC research demonstrates 'guided missile' strategy to kill hidden HIV

Researchers at UNC School of Medicine deploy a combination therapy targeting persistent HIV-infected cells that standard therapies cannot kill. The study uses mouse models and finds that an antibody combined with a bacterial toxin can penetrate infected cells and kill them, resulting in a six-fold drop in the number of infected cells.

Ahoy! First ocean vesicles spotted

Scientists at MIT discovered that marine cyanobacteria continually produce and release extracellular vesicles, which serve as food parcels for other organisms. The vesicles contain DNA, likely facilitating gene transfer among similar bacteria and potentially acting as decoys to deflect viruses.

The human Y chromosome is not likely to disappear

The human Y chromosome contains unique genes that have likely been maintained by selection, suggesting it will stick around despite its small size. Genetic diversity on the Y chromosome is low, but researchers found that natural selection, particularly purifying selection, also contributed to this low 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.

Living on islands makes animals tamer

A team of researchers found that island lizards exhibit reduced escape behavior compared to mainland lizards, suggesting a link between island isolation and tameness. The study also revealed that prey size is an important factor in determining escape behavior, with smaller prey having shorter flight initiation distances.

Moderate coffee consumption does not lead to dehydration

A recent study by researchers at the University of Birmingham found no evidence of dehydration in regular coffee drinkers who consumed moderate amounts of coffee. The study measured hydration status using various methods and found that coffee consumption contributed to daily fluid requirements, just like other fluids.

Genetic testing to produce more offspring

Researchers discovered a mutation in the TMEM95 gene causes idiopathic male subfertility in cattle. The study found that genetic defects can be traced back to one Fleckvieh animal born in 1966, which also highlights potential human medicine applications.

Fluke 87V Industrial Digital Multimeter

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

Hubble views stellar genesis in the Southern Pinwheel

Astronomers are studying the newly formed stars in M83 using citizen science project STAR DATE: M83. The project aims to estimate ages for approximately 3000 star clusters. Citizen scientists analyze the image to identify objects such as supernova remnants and foreground stars, shedding light on stellar birth and death.

Rewiring stem cells

Researchers at the University of Cambridge have created a technique that can pinpoint the factors driving cell differentiation, including previously unidentified genes. The method uses haploid embryonic stem cells to uncover how cell differentiation works.

Iconic Australasian trees found as fossils in South America

Paleobotanists discover complete fossil remains of Agathis trees from Australia to South America across Antarctica, revealing its vast range and adaptability. The findings provide insights into climate change's impact on the tree's distribution.

Spinal cord findings could help explain origins of limb control

Researchers have discovered intricate neural networks in zebrafish that could help explain how humans developed limb control. The study found separate circuits for controlling the left and right sides of the body, which may be a precursor to human arm and leg movements.

Discovery may aid vaccine design for common form of malaria

Researchers have made a significant breakthrough in understanding the mechanism of a common form of malaria. The study reveals that the parasite attaches to red blood cells using a two-step process involving two copies of a parasite protein coming together like tongs around two copies of a host protein.

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 clues to how bacteria evade antibiotics

Researchers have discovered a mechanism by which bacteria can evade antibiotics, forming 'persisters' that are tolerant to many drugs. The study found Salmonella bacteria forms large numbers of persisters after being engulfed by immune cells, allowing it to survive antibiotic treatment and cause recurrent infections.

Capturing a hard-wired variability

A study by Ludwig Cancer Research uncovers a genomic phenomenon that explains why genetically identical animals are different in their biology and appearance. Single cell analysis reveals that one allele is expressed in between 12-24% of all pairs, with random switching throughout life.

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.

Acid mine drainage reduces radioactivity in fracking waste

A Duke University study found that blending fracking wastewater with acid mine drainage can remove up to 100% of radium and other radioactive contaminants, making the treated water suitable for reuse in hydraulic fracturing. This process could reduce environmental risks and provide a win-win for the industry and the environment.

Quantum mechanics explains efficiency of photosynthesis

Researchers at University College London found that certain molecular vibrations in plant cells exhibit non-classical behavior, enhancing the efficiency of energy transfer during photosynthesis. This discovery challenges classical physics explanations and has implications for understanding other biological processes.

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.

Researchers develop test to predict early onset of heart attacks

A new 'fluid biopsy' technique identifies circulating endothelial cells as markers in the bloodstream to predict early onset of heart attacks. The test distinguishes patients undergoing treatment for a recent heart attack from healthy controls, offering a potential solution for clinical use.

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.

Eye-catching electronics

Scientists at ETH Zurich have created a new form of thin-film technology, enabling the fabrication of extremely flexible and functional electronics. These components can be applied to textiles or worn on the skin to create 'smart' objects, monitoring various bodily functions.

Targeting certain kidney cells may help treat kidney failure

Researchers have found that certain cells contribute to kidney function decline by causing destructive scarring, making them attractive targets for treatments. An additional but limited reserve of mature and functional filter cells is present at birth, which can be preserved and protected through pharmacological strategies.

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.

When charitable acts are 'tainted' by personal gain

A new study found that when charity is tied to personal gain, it's viewed less favorably by others. Participants rated individuals who benefited from charity as less moral and ethical compared to those who didn't benefit. The researchers suggest finding ways to reduce this bias could lead to more charitable donations.

Penn research helps lay out theory for metamaterials that act as an analog computer

Researchers at the University of Pennsylvania propose a new theoretical framework for metamaterials that can perform 'photonic calculus' on light waves, enabling fast and efficient calculations. This technology could revolutionize fields such as image processing by allowing real-time manipulation of light wave profiles without conversi...

Lions are critically endangered in West Africa

The West African lion is facing extinction, with only an estimated 250 adult lions remaining due to habitat loss and human-lion conflict. Conservation efforts are urgent as losing this unique population would result in the loss of a locally adapted species found nowhere else.

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.

Loss of large carnivores poses global conservation problem

The study highlights the decline of large carnivore species worldwide, with 17 species occupying less than half of their former ranges. The authors call for an international initiative to conserve these species in coexistence with humans, citing the importance of their ecological effects and social benefits.

Big data: A method for obtaining large, phylogenomic data sets

Researchers have developed a new approach using long-range PCR and next-generation sequencing to obtain large phylogenomic data sets, increasing accuracy in reconstructing evolutionary history. This method allows for the amplification of larger DNA fragments, enabling the targeting of specific genomic regions.

Study dispels theories of Y chromosome's demise

Researchers have found that the Y chromosome retains key genes essential for male fertility, contradicting theories of its demise. The study, which analyzed Y chromosomes in African and European men, suggests that natural selection has played a crucial role in maintaining the gene content on the Y chromosome.

SF State astronomers discover new planet in Pisces constellation

Researchers found a new giant planet in the Pisces constellation using radial velocity technique, contradicting initial assumption that only single-star systems host planets. The discovery has significant implications for understanding how extrasolar planets are formed and could lead to further discoveries in multiple-star systems.