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Science News Archive 2013


Page 25 of 352

New insights into cancer evolution help define screening window of opportunity

Researchers at Fred Hutchinson Cancer Center have gained a better understanding of how to increase the window of opportunity to detect potentially dangerous cancers before they're hard to treat. By studying genetic changes in Barrett's esophagus, scientists found that cancer arises suddenly after cells undergo large, drastic mutations.

UCSB team discovers how to change cell types by flipping a single switch

Researchers at UCSB have identified a way to change one cell type into another using transcription factor ELT-7, which was previously thought to be exclusive to early embryonic cells. The discovery opens up new possibilities for regenerative medicine and could potentially allow for the creation of entire organs from scratch.

Apple iPhone 17 Pro

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

Higher case load lowers cost of repairing bones that protect eye

A study by Johns Hopkins researchers found that patients with traumatic eye socket injuries fared equally well at half the cost when treated at a busy teaching hospital compared to other Maryland hospitals. The study's findings suggest that high-volume care and standardized protocols can lead to significant cost savings.

Tuberculosis: Nature has a double-duty antibiotic up her sleeve

Researchers have discovered a potent natural antibiotic, pyridomycin, that targets two key enzymes in tuberculosis bacteria. The molecule's unique three-dimensional structure allows it to simultaneously inhibit the production of the bacterium's lipid membrane, drastically reducing the risk of resistance.

Neurofeedback tunes key brain networks, improving subjective well-being in PTSD

Researchers at Western University found that neurofeedback training can alter key brain networks linked to post-traumatic stress disorder (PTSD), leading to improved subjective well-being. The study used a combination of EEG and fMRI techniques to measure changes in brain activity and connectivity after a 30-minute neurofeedback session.

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.

Rainfall to blame for decline in Arctic peregrines

A University of Alberta study links rainfall to survival of wild birds in Canada, citing a long-term decline in reproduction for Arctic peregrines. The study found that over one-third of chick deaths were caused by rain, leading to hypothermia and drowning.

New thermoelectronic generator

Researchers have developed a highly efficient thermoelectronic generator that can convert heat and solar energy into electricity without mechanical parts. The new design solves the space-charge problem, achieving efficiencies of up to 40%, paving the way for potential commercial applications in the renewable energy sector.

American Mathematical Society to award prizes

The American Mathematical Society has announced its prize winners, recognizing outstanding contributions to mathematics in various fields. The recipients include notable mathematicians and researchers who have made significant impacts on the field.

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.

Remembrances of things past

A team of scientists at Berkeley Lab has developed a new material that exhibits the highest shape-memory effect ever recorded in an oxide material. This breakthrough discovery opens up exciting possibilities for future nanoelectromechanical devices and other state-of-the-art nanosystems.

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.

LSTM researchers among first to sequence snake genome

Researchers from LSTM and international biologists sequenced the king cobra genome, showing dynamic evolution and adaptation in its venom system. The study reveals rapid expansion of gene families that produce venom toxins, providing snakes with a highly toxic protein mixture.

Disability, distress in RA patients cut in half over last 20 years

Researchers found that anxiety, depressed mood, and physical disability among RA patients decreased by half over the past two decades. Improved treatment options, including early therapy intervention and biologics, have led to reduced disease activity and better daily living for these patients.

Breast cancer risk related to changes in breast density as women age

Research suggests that automated breast density measurement can predict breast cancer risk in younger women, with changes in breast density over time playing a significant role. Women under 50 are at high risk for density-associated breast cancer, and earlier mammogram screenings may be beneficial for those with denser breasts.

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.

Understanding hearing

Researchers at TUM developed a computer model of acoustic coding in the inner ear and neuronal information processing by the brain stem, allowing for improved coding strategies and faster testing of new devices. This advancement has the potential to significantly reduce development cycles and provide better hearing outcomes for patients.

Salk scientists crack riddle of important drug target

Researchers at the Salk Institute created a new approach to determine the structure of key cellular receptors using artificial amino acids, revealing crucial details about their binding pockets. This breakthrough could aid in designing drugs that target diseases such as diabetes and osteoporosis.

New research shows obesity is an inflammatory disease

A study published in The FASEB Journal reveals that obesity is associated with an abnormal amount of the inflammatory protein PAR2 on abdominal fat tissues, which can be blocked by a new oral drug. This finding suggests that obesity may be an inflammatory disease and that controlling inflammation could lead to weight loss.

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.

Bothersome pain afflicts half of older Americans

A study found that 52.9% of older adults in the US have experienced bothersome pain, with multiple sites common among those with pain. Pain is strongly associated with decreased physical capacity, including weaker muscle strength and slower walking speed.

Increased risk for cardiac ischemia in patients with PTSD

A new study published in Biological Psychiatry found that patients with PTSD are at higher risk of cardiac ischemia, with no correlation to other cardiovascular risk factors. Researchers detected elevated rates of myocardial ischemia in 17% of participants with PTSD, highlighting the need for tailored treatments.

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.

JCI early table of contents for Dec. 2, 2013

Researchers identified a distinct Treg cell population expressing ICOS that predicts better clinical outcomes in melanoma patients treated with high-dose IL-2 therapy. A SOD1 pharmacological inhibitor reduced tumor growth in mice, suggesting inhibition of antioxidants as a viable chemotherapeutic option.

HIV plus HPV leads to increased anal cancer risk in men

A recent study published in PLOS ONE found that HIV-positive men who have sex with men are at a higher risk of developing anal cancer due to Human Papillomavirus (HPV) infection. The researchers discovered that taking antiretroviral therapies as prescribed can lower the risk of HPV infections among HIV-infected men.

When aluminum outshines gold

Researchers at Rice University have discovered aluminum's valuable plasmonic properties, which make it suitable for harvesting solar energy and creating large-area optical devices. The study also found that aluminum exhibits quantum mechanical effects stronger than gold in certain nanomatryushka structures.

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.

A new weapon in the war against superbugs

Tel Aviv University researchers have discovered a protein that kills bacteria, potentially offering a new antibiotic substitute. The protein, produced by a virus that attacks bacteria, impedes cell division in E. coli and causes cells to elongate and die.

Messy children make better learners

Researchers found that toddlers who interacted with food in a high chair learned words for nonsolid objects more effectively due to familiarity with the setting. The study showed that changes in environment and exploration help children acquire early vocabulary, linked to better later cognitive development.

New algorithm finds you, even in untagged photos

A new algorithm, relational social image search, can find individuals in untagged photos by quantifying relationships between people based on tag locations. The algorithm achieves high reliability without using computationally intensive software and is more efficient than standard approaches.

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.

Burmese python genome reveals extreme adaptation

The Burmese python genome study found large numbers of rapidly evolved genes linked to extreme characteristics such as rapid increases in metabolism and organ growth after feeding. The researchers discovered that snakes have undergone incredible changes at all levels of their biology, including physiological and molecular changes.

Researchers turn to machines to identify breast cancer type

A computer algorithm predicts breast cancer type with 93% accuracy by identifying three genes involved in estrogen signaling. The technique has the potential to replace traditional lab tests, potentially becoming more affordable and accessible in the future.

Fluke 87V Industrial Digital Multimeter

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

A living desert underground

Researchers at the University of Arizona have discovered a surprisingly diverse ecosystem of microbes living in the perpetual darkness of Kartchner Caverns, a limestone cave system. The microbes thrive on limited nutrients, including nitrogen-containing compounds, and can even harness energy from minerals dissolved in rock fissures.

Celestron NexStar 8SE Computerized Telescope

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

New study sheds light on the functional importance of dinosaur beaks

A new study published in PNAS sheds light on the functional importance of dinosaur beaks, revealing they helped stabilize the skull structure during feeding. The research, led by Drs Stephan Lautenschlager and Emily Rayfield, used CT scanning and computer simulations to analyze a therizinosaur's beak.

Newly discovered human peptide may become a new treatment for diabetes

A newly discovered human peptide called humanin may become a new treatment for diabetes by increasing insulin secretion and improving glucose metabolism in beta cells. Humanin levels naturally decline with age, suggesting potential benefits for patients with other conditions like stroke, heart disease, and Alzheimer's.

Forget the needle consider the haystack

Computer scientists at Princeton University have developed a method that allows researchers to identify quickly the connections between seemingly disparate groups in large collections of information. By using a mathematical method to calculate the likelihood of a pattern repeating throughout a subset of data, the tool can cut dramatica...

Koalas' low-pitched voice explained by unique organ

Researchers have discovered a specialized sound-producing organ in koalas, located outside the voice box, which enables extremely low-pitched mating calls. The organ produces continuous sounds on inhalation and exhalation, similar to a donkey's braying.

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.

Energy drinks plus alcohol pose a public health threat

A new study by University of Michigan researchers found that mixing energy drinks with alcohol leads to heavier drinking and more severe alcohol-related issues. The study, published in the Journal of Adolescent Health, analyzed data from over 650 college students and suggests that the combination may lead to 'wide awake drunk' situations.

New UK study suggests low vitamin D causes damage to brain

A new UK study published in Free Radical Biology and Medicine found that a diet low in vitamin D causes free radical damage to the brain, leading to decreased cognitive performance. The researchers also discovered that vitamin D deficiency is linked to Alzheimer's disease, certain cancers, and heart disease.

PRP therapy improves degenerative tendon disease in athletes

A study presented at the Radiological Society of North America annual meeting found that ultrasound-guided PRP therapy improves functionality by 80% and pain by 75% in athletes with Achilles and patellar tendinosis. The therapy also normalizes MRI signal intensity in 90% of patients.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Microplastics make marine worms sick

Research by Plymouth University and the University of Exeter found that microplastic ingestion can decrease energy reserves in marine worms. The study also revealed that ingested plastic can deliver harmful chemicals to organisms, leading to reduced health. This has significant implications for the food chain and marine ecosystems.

Brain connectivity study reveals striking differences between men and women

A Penn Medicine brain imaging study found greater neural connectivity from front to back and within one hemisphere in males, while females displayed greater connectivity between the left and right hemispheres. This difference may explain why men excel at single-tasking and women are better at multitasking and social cognition.

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.

Division of labor in the test tube

Researchers discovered that bacteria that complement each other's nutritional needs grow faster and are more fit than solo individuals. This finding supports the widespread model of cooperation in nature.

Rice U. study: It's not easy 'being green'

A new Rice University study explores the complex relationship between self-evaluations and supportive behaviors towards environmental issues. Researchers found that individuals who experience mixed self-evaluations, including both positive self-assets and negative self-doubt, tend to exhibit less extensive issue-supportive behavior.