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Science News Archive 2013


Page 11 of 352

Discovered diversity of antiviral bacteria

Researchers have identified diverse strains of Wolbachia bacteria that offer strong antiviral protection against diseases like dengue, but may come with a cost to the host's lifespan. The study found that certain strains replicate more quickly and reach higher concentrations in flies, potentially reducing their lifespan.

Microprinting leads to low-cost artificial cells

Artificial cells manufactured via microprinting can mimic natural cell membranes, allowing researchers to study cellular processes. The creation of uniform-sized artificial cells with proteins and lipids enables high-throughput screenings for drug delivery and disease prevention.

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.

A universal RNA extraction protocol for land plants

A new RNA extraction protocol for land plants has been developed, allowing for the extraction of high-quality RNA from a wide variety of plant species and tissue types. This protocol will greatly facilitate RNA-based studies of non-model plant species and enable comparative analyses of transcriptomes across diverse lineages.

Golden trap: Highly sensitive system to detect individual molecules

Researchers have developed a highly sensitive system to detect individual molecules using a 'golden trap' technique. By creating a customized environment with gold nanoparticles and DNA, they can capture and identify single molecules, opening up possibilities for early disease detection in medical diagnostics.

Nanofriction on the tip of the microscope

Researchers observed 'dissipation' peaks in NbSe2 due to frictional force, related to charge density waves. Their theoretical model reproduces experimental data, shedding light on nanofriction mechanisms underlying energy losses.

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.

The effects of sequestration on Indian health

A new commentary highlights the devastating impact of sequestration on the Indian Health Service, perpetuating longstanding health care disparities. Funding cuts lead to rationing of services, contributing to a 4.1-year gap in life expectancy compared to mainstream Americans, with alarming rates of alcoholism, diabetes, and mortality.

Scientists identify molecular biomarkers of vaccine immunity

Researchers at Emory Vaccine Center compared the molecular signatures induced by five different vaccines to predict vaccine effectiveness and stimulate immune responses. The study suggests that gene expression predictors are dependent on vaccine type, rather than universal.

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.

Deep-sea corals record dramatic long-term shift in Pacific Ocean ecosystem

A study by University of California, Santa Cruz researchers found a significant shift in the North Pacific Subtropical Gyre's food web since 1850, driven by changes in nitrogen sources. The shift may be related to the expansion and warming of open ocean gyres, which limits nutrient delivery to surface waters.

Apple iPhone 17 Pro

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

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.

Researchers split water into hydrogen, oxygen using light, nanoparticles

Researchers from the University of Houston have discovered a catalyst that can quickly generate hydrogen from water using sunlight, producing twice as much hydrogen as oxygen. The technology has potential as a clean and renewable source of energy, but its efficiency rate is still too low to be commercially viable at present.

Virus grows tube to insert DNA during infection then sheds it

Researchers discovered a temporary tube-shaped structure in the phiX174 virus to deliver its DNA during infection. The tube attaches to host cell membranes and contains amino acids ideal for DNA transfer. This finding may be crucial for efficient genome translocation.

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.

Silencing signals sent by parasite could aid sleeping sickness fight

Scientists at the University of Edinburgh made a groundbreaking discovery that could help combat the spread of sleeping sickness. By understanding how parasites communicate with each other, researchers may be able to develop new drugs to disrupt these messages and limit the disease's transmission.

Climate change will endanger caribou habitat, study says

A study published in Nature Climate Change suggests that climate change will endanger the habitat of caribou, a species already threatened by the loss of critical lichen-rich environments. The research, led by University of Calgary professor Marco Musiani, analyzed DNA from reindeer and caribou populations across North America and Europe.

Climate change threatens genetic diversity, future of world's caribou

Caribou populations in climatically stable areas have the greatest genetic diversity, but climate change is expected to reduce viable habitat and lead to population isolation and fragmentation. As a result, caribou will lose the ability to adapt to change and become more vulnerable to extinction.

Regular exercise in middle age protects against muscle weakness later in life

A cross-sectional study by Tokyo University found exercising in middle age is a protective factor against sarcopenia and effective in maintaining muscle strength and physical performance. The prevalence of sarcopenia was higher with increasing age, but exercise habits in middle age were significantly associated with lower 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.

Hong Kong study shows lower survival rates after second hip fractures

A Hong Kong-based study found that 75% of second hip fractures occurred within 4 years of the initial fracture, with female patients experiencing a higher incidence. The study also revealed lower survival rates after a second hip fracture, with median survival times of 3 years and 8 months compared to 4 years and 10 months after the fi...

New concerns over safety of common anesthetic

A large study found that patients receiving etomidate for anesthesia may be at increased risk of mortality and cardiovascular events, with a 250% increase in death risk compared to those receiving propofol. The results have sparked concerns over the safety of etomidate use.

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.

Defending medical oncology to assure quality care for cancer patients

The European Society for Medical Oncology (ESMO) releases a position paper on the role of medical oncologists in cancer care, emphasizing the importance of their specialist training. The paper aims to guarantee access to optimal treatment for Europe's growing number of cancer patients.

Evidence of savings in accountable care organizations and cancer care

Researchers found a significant reduction in Medicare spending of $721 annually per patient, with no adverse consequences for survival, through the use of accountable care organizations (ACOs). ACOs led to better management of acute care, resulting in fewer hospital admissions among beneficiaries with prevalent cancer.

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.

Swirls in remnants of big bang may hold clues to universe's infancy

Researchers detected twisting patterns in polarization of oldest light in the universe, hinting at complex processes and properties of the earliest moments in the universe's formation. The discovery could help physicists better understand the distribution of mass and define cosmologically important properties.

UCSF research finds new link between obesity, early decline in kidney function

A new UCSF-led study reveals that body mass index significantly increases the risk of developing chronic kidney disease, even before other obesity-related diseases emerge. Healthy kidneys play a vital role in various bodily functions, and the research emphasizes the importance of intervening early in life with obese patients.

Nutrition report cards receive high marks in pilot program

A new Cornell University study found that nutrition report cards sent to parents can encourage healthy eating habits in their children. The pilot program showed that students selected fruits and vegetables more frequently, and flavored milk less often, after receiving the reports.

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.

Snail fever expected to decline in Africa due to climate change

A new study predicts that climate change will lead to a decline in the spread of snail fever in Africa, with up to 19% reduction in infectious areas. The parasite's host snails are expected to lose suitable habitats due to rising temperatures and changing precipitation patterns.

Scientists and practitioners don't see eye to eye on repressed memory

A recent study found that while mainstream psychotherapists and clinical psychologists are more skeptical about recovered memories than they were 20 years ago, there remains a significant gap between researchers and clinicians in their beliefs about memory. The divide has implications for clinical practice and the judicial system.

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.

UTHealth's Arthur Day, M.D., honored by neurosurgical association

Arthur L. Day, M.D., professor of neurosurgery at UTHealth, received the Founders' Laurel Award for his exceptional service and meritorious accomplishments in medical education. He is recognized internationally for his expertise in cerebrovascular and skull base neurosurgery, particularly in treating pituitary tumors.

National award honors CHOP scientist for career work in gene therapy for hemophilia

Dr. Katherine High's groundbreaking research in gene therapy has led to novel approaches to correcting hemophilia, with ongoing studies in a current NIH-funded clinical trial. The E. Donnall Thomas Prize recognizes her remarkable contributions to the field, transforming the notion of using genetically engineered mechanisms for treatment.

Clot-busters, caught on tape

Researchers used high-speed photography to study how ultrasound-stimulated microbubbles dissolve killer blood clots. The team found that the bubbles deform the clots' boundaries before burrowing into them, creating fluid-filled tunnels that break up the clots from the inside out.

Strobe glasses improve hockey players' performance

A Duke University study found that strobe glasses improved hockey players' performance by forcing their visual system to train in difficult conditions. The glasses produced stroboscopic visual conditions, resulting in an 18% improvement in on-ice skills and demonstrating potential benefits for sports performance.

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.

A stop sign for cancer

Researchers identify two therapeutic targets to block cancer cell growth: PAK and STAT5. The shutdown of either target significantly delays leukemia progression in mice, offering new hope for cancer treatment.

No math gene: Learning mathematics takes practice

The study found that practicing different types of math skills can lead to expertise in those areas. This approach helps students identify their strengths and weaknesses, allowing them to focus on areas where they need improvement.

UTHealth named one of nation's NIH stroke network centers

The University of Texas Health Science Center at Houston has been named a regional stroke center by the National Institutes of Health, with a focus on prevention, treatment, and recovery. Researchers are testing new treatments, including stem cell therapies, to improve stroke care.

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.

Marine biologists unmask species diversity in coral reefs

A team of marine biologists has discovered that previously unrecognized species diversity was hiding some corals' ability to respond to climate change. The researchers found that two separate lineages of coral, which look deceivingly similar, have different genetic makeup and survival strategies.