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Science News Archive June 2015


Page 8 of 36

Tiny particles in blood useful for early diagnosis of pancreatic cancer

Researchers at MD Anderson Cancer Center have identified a potential non-invasive diagnostic tool for early pancreatic cancer detection. Glypican-1-enriched circulating exosomes were found to be present in small amounts of serum from patients with pancreatic cancer, showing high specificity and sensitivity. Early detection of pancreati...

Exceptional view of deep Arctic Ocean methane seeps

Researchers from UiT The Arctic University of Norway have imaged deep Arctic Ocean methane seeps for the first time using a custom-designed system. The images reveal over 1000 active seep sites at depths of over 1000 m, providing valuable insights into gas hydrate and climate change.

Apple iPhone 17 Pro

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

Malaysia's 'megadiverse' biology to be explored, conserved with new grant

A new $20,000 grant from the National Geographic Society will support Chan Kin Onn's research on revealing the hidden diversity and riverscape genetics of reptiles and amphibians in Malaysia. Through genetic analysis and ecological niche modeling, Chan aims to catalog and conserve species threatened by habitat destruction.

Challenging negative stereotypes to narrow the achievement gap

Researchers at Columbia University found that students who wrote about values important to them showed improved academic performance and challenged negative stereotypes. The study used text mining to analyze thousands of essays written by middle school and college students.

UAlberta partnership could be a 'game-changer' for cancer patients

A multimillion-dollar research partnership at the University of Alberta is developing small molecules that can reactivate a patient's immune system to fight cancer. The team plans to have a 'lead structure' drug ready by the end of the second year, with the potential for human trials by 2020.

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.

Girls suffer more overuse injuries in teen sports

Girls are at a higher risk of overuse injuries in high school sports, with girls track, field hockey, and lacrosse showing the highest rates. Varying movement and prioritizing rest and nutrition can help prevent these injuries.

Eating in the absence of hunger: A recipe for expanding waistline

A QUT study found that compulsive snacking when not hungry is a major cause of weight gain. Volunteers who were offered extra chocolate snacks despite feeling full consumed more, with those eating most being heavier and more impulsive. Repeated snacking without hunger poses a risk factor for weight gain.

Giving atoms their marching orders

Scientists at the University of South Carolina and University of Florida have created a new system for studying gas flow in narrow tubes with single-file atom movement. By comparing these nanotubes to wider tubes, researchers aim to understand fundamental processes involved in gas separation and membrane technology.

Nanowires could be the LEDs of the future

Researchers at the Niels Bohr Institute have discovered a way to design nanowires for LEDs that use less energy and provide better light. By using X-ray microscopy, they can pinpoint the optimal structure of these tiny wires, leading to more efficient core/shell designs.

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.

Could 'virtual reality' treat alcoholism?

A new study suggests that virtual reality therapy may help people with alcohol dependence reduce their craving for alcohol. The therapy involves exposing patients to situations that trigger fear and anxiety, then teaching them to manage those situations in real life.

Eavesdropping on the body: New device tracks chemical signals within cells

Researchers at the University of Toronto have developed a new device that can track chemical signals within cells, allowing for faster and more accurate detection of cancerous growth. The device uses digital microfluidics to deliver rapid sequences of chemicals, enabling scientists to study cell responses in unprecedented detail.

Brain imaging technique receives NIH grant

A new laser-based technique called multi-exposure speckle imaging (MESI) aims to provide accurate blood flow measurements during neurosurgery. The technology has the potential to transform images and enable surgeons to distinguish healthy arteries from blocked ones, allowing for better assessment of problem areas.

Celestron NexStar 8SE Computerized Telescope

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

DNA shed from head and neck tumors detected in blood and saliva

Scientists successfully identified tumor DNA shed into the blood and saliva of patients with head and neck cancer, offering a promising new screening test. Saliva tests fared better for oral cavity cancers, while blood tests excelled in detecting cancers in the larynx, hypopharynx, and oropharynx.

Recycled water, salt-tolerant grass a water-saving pair

Plant breeders are developing salt-tolerant grass to conserve water, using treated wastewater in turf grass cultivation. The research found that additive genetic effects play a crucial role in salt tolerance, allowing breeders to select for desirable traits.

Artifical neuron mimicks function of human cells

Scientists at Karolinska Institutet have created an organic bioelectronic device that can receive chemical signals and relay them to human cells, mimicking the function of a human nerve cell. This innovation has the potential to improve treatments for neurological disorders by bypassing damaged nerve cells.

How the brightest lights in the universe 'flicker'

Astronomers discover active galactic nuclei (AGN) exhibit flickering behavior, switching on and off every 200,000 years. This phenomenon affects star formation in host galaxies, with radiation from AGN potentially delaying or preventing the collapse of gas clouds.

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.

As smoking declines, more are likely to quit

A new study finds that as smoking declines overall, remaining smokers are actually less likely to smoke and more likely to quit. The study challenges the need to promote e-cigarettes as a harm reduction strategy, suggesting that current tobacco control policies have been successful in reducing smoking prevalence.

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.

Giant comet-like tail discovered on small exoplanet

A team of scientists has discovered a massive cloud of hydrogen escaping from the atmosphere of GJ436b, a Neptune-sized exoplanet located 33 light years away. This phenomenon may help explain the formation of hot and rocky 'super-earths' and potentially detect extrasolar oceans.

Study reveals how our brains can form first impressions quickly

Researchers at the University of Edinburgh found that the primary visual cortex controls fast responses to animal images, contradicting previous theories. The brain categorizes scenes based on small areas of shape and texture before using complex processing to identify objects.

Diabetic blindness: UVA IDs best source of stem cells to block vision loss

Researchers have evaluated the best potential sources for adult stem cells to be used for treating diabetic retinopathy. They found that cells taken from donors without diabetes are more effective than those from patients' own bodies. This discovery provides a crucial framework for evaluating stem cells for future treatments.

Targeting telomeres, the timekeepers of cells, could improve chemotherapy

Scientists at the Salk Institute discovered that telomeres play a more central role in a self-destruct program in cells that prevents tumors than previously thought. This process, called crisis, can be exploited to improve cancer therapies by targeting telomeres and making cells more susceptible to chemotherapy.

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.

Medical research not addressing patient and clinician priorities

A recent study published in Research Involvement and Engagement found that research on treatments for health problems like diabetes and schizophrenia is not focused on the most important treatments considered by patients and clinicians. The study reveals marked differences between the types of treatments highlighted as priorities by pa...

Researchers reconstruct dinosaur tracks

Researchers reconstructed dinosaur tracks at a 154-million-year-old quarry site, suggesting carnivorous dinosaurs hunted herbivorous island-dwelling dinosaurs. The digital model reveals that the predators could have immigrated via a land bridge as sea levels dropped.

University of Iowa studies impact of marijuana on driving

A new study conducted at the University of Iowa's National Advanced Driving Simulator found that drivers who use both alcohol and marijuana together weaved more on a virtual roadway than those using either substance independently. The study, which analyzed the effects of inhaled cannabis on driving performance, also found no double eff...

New knowledge: Parkinson's disease may begin in the gut

Researchers found that patients who had undergone vagotomy were protected against developing Parkinson's disease, with a risk halved after 20 years. The study suggests that Parkinson's disease begins in the gut and spreads via the vagus nerve to the brain.

The pertussis pathogen -- New findings

Researchers discovered that the protein structure of a key membrane protein differs from a previously postulated model, providing a basis for new treatments. The study reveals how the protein pore opens and closes in response to substrate binding, offering insights into the pathogen's attachment mechanism.

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.

How will cold-loving Antarctic fish respond to warming ocean waters?

Research aims to understand how Antarctic fish will respond to rising ocean temperatures, which could impact the food web and ecosystem. The study will focus on embryo viability, development rate, and temperature stress response in two species, and provide data for informing climate change strategies.

Old-school literature search helps ecologist identify puzzling parasite

A months-long literature search uncovered evidence that a microscopic aquatic parasite, Blastulidium paedophthorum, is a widespread and virulent multi-host parasite in southeastern Michigan lakes. The research found that the parasite significantly impacts host fecundity without reducing Daphnia lifespan.

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.

Commodity market volatility more perception than reality

Researchers found that commodity price bubbles were short-lived and not as frequent as thought. Bubbles in the grain markets occurred more often during periods of production problems rather than speculative activity. The study's findings suggest that the commodity market is doing a good job of accessing prices, with only minor hiccups.

'Pick and mix' smart materials for robotics

Scientists at the University of Cambridge developed a method to combine multiple functions in a single material by integrating structure at the nanoscale. This approach enables the creation of multi-functional artificial muscles that can move, sense, and report on their environment.

Mirror-like display creates rich color pixels by harnessing ambient light

Researchers at Qualcomm MEMS Technologies developed a display technology that harnesses natural ambient light to create an unprecedented range of colors. The new design uses a mirror and absorbing layer to reflect more of the incoming light, enabling the full spectrum of visible light to be displayed.

Fewer than 1 in 10 older heart patients get life-saving defibrillators

A Duke University Medical Center study found that older heart patients with reduced function may benefit from defibrillators, which can lower the risk of death by one-third. However, the devices are underutilized due to factors such as advanced age, transitions in care, and mandatory waiting periods.

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.

Neutron star's echoes give astronomers a new measuring stick

Researchers have developed a new method to estimate distances to X-ray sources using the geometry of light echoes and dust clouds. By analyzing the timing and deflection of X-rays as they pass through interstellar space, astronomers can calculate the distance to Circinus X-1, a binary system located in the plane of the galaxy.

Diabetes medication reduces dementia risk

A study analyzing health insurance data found that long-term treatment with pioglitazone significantly decreases the risk of developing dementia in patients with type 2 diabetes. The medication lowers the risk by approximately half compared to non-diabetics, with a notable protective effect against Alzheimer's disease.

New model calculates how air transport connects the world

A new model by MIT researchers analyzes flight schedules and ticket sales to determine global air transport connectivity. The study finds that one-stop flights have become more important over time in connecting regions, despite being less preferred by passengers.

Physicists fine-tune control of agile exotic materials

Researchers have successfully controlled the length and strength of waves of atomic motion, promising applications in fine-scale imaging and information transmission. Hybrid polaritons propagate throughout many layers of a crystalline material and can be tuned with an electronic gate.

Drugs for impotence do not increase risk of melanoma

Researchers from Umea University found no association between PDEi drugs and increased melanoma risk; instead, men taking these drugs are more health-conscious and sunbathe more often, increasing their melanoma diagnosis risk.

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.

Louisiana Tech University chemistry student awarded EPA Fellowship

Joshua Tully, a Louisiana Tech University chemistry student, has been awarded a Greater Research Opportunities (GRO) Fellowship by the EPA for his research on natural clay nanotubes. The fellowship provides a year of academic support and internship experience, valued at up to $50,000.

Biomanufacturing of CdS quantum dots

A team of Lehigh University engineers has developed a novel approach for the reproducible biosynthesis of extracellular, water-soluble quantum dots using bacteria and cadmium sulfide. This method reduces cost and environmental impact by utilizing an engineered strain of Stenotrophomonas maltophilia to control particle size.

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.

The shame of psychology

UCSB sociologist Thomas Scheff argues that psychology's scientific method is blind to the insights of intuition, leading to misconceptions about catharsis, stigma, and self-esteem. Future studies could split scales into cognitive and emotional components to address these issues.

Photo selection study reveals we don't look like we think we look

A new study published in the British Journal of Psychology found that people tend to choose poorly matching passport photos, leading to lower accuracy in face recognition. Strangers were surprisingly more reliable at judging likeness than individuals themselves, with self-selected images being matched seven per cent less accurately.

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.