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Science News Archive 2013


Page 319 of 352

Birds evolved ultraviolet vision several times

Researchers sequenced genes responsible for light-sensitive pigment in 40 bird species, revealing at least 14 shifts between violet and ultraviolet color vision. This evolution is driven by single nucleotide changes in DNA, resulting in unique visual adaptations among birds.

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.

New genes for short-sightedness identified

An international team of scientists has discovered 24 new genes associated with refractive errors and myopia, a major cause of blindness worldwide. The findings could lead to new treatments or prevention strategies for this condition.

Old drug may point the way to new treatments for diabetes and obesity

A team of researchers at the University of Michigan's Life Sciences Institute has found that amlexanox, an off-patent drug, can reverse obesity, diabetes, and fatty liver in mice. The study suggests that the drug works by inhibiting two genes involved in metabolic balance, leading to increased metabolism and weight loss.

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.

Comparing mechanical clot removal and standard medical therapy for severe stroke

A new randomized controlled trial compared the effectiveness of mechanical clot removal with standard medical therapy in treating severe strokes. The study, led by Georgetown University Medical Center, found that removing blood clots within eight hours of stroke symptoms improved survival outcomes and reduced disability levels.

Physicians' belief about obesity causes impacts advice and care

A study by Johns Hopkins Bloomberg School of Public Health found that physicians who believe overconsumption of food contributes to obesity are more likely to advise patients to modify nutritional habits. The study analyzed data from 500 US primary care physicians and found a significant correlation between physician beliefs and counse...

Scientists using holiday snaps to identify whale sharks

Researchers successfully identified individual whale sharks in 85% of cases using public photographs, comparable to professional photographer identification rates. The study suggests that citizen-sourced photos can be a valuable tool for tracking whale shark populations and monitoring conservation efforts.

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.

Rooting out recurrent breast cancer

A study published in the Journal of Clinical Investigation found that TGF-β is highly expressed in triple negative breast cancer cells after chemotherapy. In a mouse model, blocking TGF-β prevented tumor recurrence and enhanced chemotherapy action against triple negative breast cancer.

New insight on relationship between parents, preschoolers and obesity

A new study from Washington State University finds that mothers' eating habits at the dinner table can significantly impact their preschoolers' obesity risk. The researchers analyzed surveys of low-income African-American and Latino Head Start preschoolers and caregivers, discovering that moms who exhibit high levels of control while f...

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.

New insight into RASopathy-associated lymphatic defects

Researchers used transgenic mice to study the effects of RAS pathway alterations on lymphatic system development. They found that excess ERK activation leads to lymphatic defects in RASopathies, which can be reversed by ERK inhibitor treatment.

Villain stomach bug may have a sweet side

Researchers at Virginia Tech discovered that Helicobacter pylori, a bacterium blamed for health issues like gastritis and gastric cancer, helps balance the stomach's ecosystem and control body weight and glucose tolerance in mice. The findings suggest that H. pylori may provide important metabolic traits required to combat diabetes.

JCI early table of contents for Feb. 8, 2013

Studies reveal that blocking TGF-β can prevent tumor recurrence in mice with triple negative breast cancer. Additionally, targeting specific subsets of immune cells, such as CD8+ regulatory T-cells, may provide a new approach to treating rheumatoid arthritis.

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.

Forensic pathology: tracing the origin of the Usutu Virus

A team at Vienna University of Veterinary Medicine found the same strain of Usutu virus in dead blackbirds in Italy in 1996 as in Austria's cases. This suggests the virus was present in Italy before reaching Europe, and forensic pathology can help unravel origins of emerging diseases.

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.

Cupid's arrow: Notre Dame Research illuminates laws of attraction

University of Notre Dame Sociologist Elizabeth McClintock's research offers new insights into physical attractiveness and age on mate selection. Her studies show that very physically attractive women are more likely to form exclusive relationships, while thinner women report fewer sexual partners.

Support needed for children losing parent at early age

A study exploring the impact of early parental death found that individuals experiencing bereavement as children are more likely to experience low self-esteem, loneliness, and isolation in adult life. Researchers recommend providing essential practical support and maintaining social networks to mitigate these effects.

Apple iPhone 17 Pro

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

Bronchiectasis increases mortality risk in moderate-to-severe COPD

A new study has found that bronchiectasis is independently associated with an increased mortality risk in patients with moderate-to-severe Chronic Obstructive Pulmonary Disease (COPD). The presence and severity of bronchiectasis were linked to a higher risk of death, independent of other known risk factors.

Targeting T cells in rheumatoid arthritis

A subset of regulatory T cells has been identified that can remove pathogenic T cells, inhibiting disease progression in RA-like conditions. Small proteins have also been found to induce more of these beneficial T cells.

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.

New strategy prevents rheumatoid arthritis in mice

Researchers at Dana-Farber Cancer Institute have developed a new approach to treating autoimmune diseases like rheumatoid arthritis. Infusing CD8+ Treg cells into arthritis-prone mice shut down the inflammatory cascade that damages tissues and joints, significantly slowing disease progression.

Putting our heads together: Canines may hold clues to human skull development

Scientists review research on dog cranium development to identify genetic variations that may inform human skull development. The study suggests a connection between canine and human craniofacial development, potentially leading to new insights into craniofacial deformities such as Apert, Crouzon, and Pfeiffer syndromes.

Implants make light work of fixing broken bones

Artificial bone created using stem cells and lightweight plastic can heal shattered limbs by encouraging real bone growth. The implant's honeycomb structure allows blood to flow through it, supporting the attachment of patient-derived stem cells.

Premiums for public health insurance affect coverage

A study by Georgetown University researchers found that requiring premiums for public health insurance coverage can counteract its expansion effects. The Affordable Care Act subsidies play a crucial role in making health insurance more affordable, affecting the number of uninsured individuals.

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.

Using Twitter to predict the influence of lifestyle on health

Researchers used Twitter data to model how lifestyle factors such as social status, pollution exposure, and interpersonal interaction influence health. They found that even people who regularly talk about exercising get sick more often than those who actually exercise.

New brain-test app

A new study by researchers at the University of Bergen found that an iPhone app, iDichotic, produces as reliable results as laboratory tests. The app measures brain function in language processing and attention, opening up new possibilities for psychological research and remote testing.

Got to go? Harvard scientists figure out how you know

Researchers have identified a new mechanism by which the bladder senses its level of fullness through integrin proteins. This discovery may lead to the development of new drugs targeting this pathway to treat overactive bladder and incontinence.

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.

For ant pupae, status means being heard

Ant pupae employ acoustics to signal their rightful place in the colony's hierarchy, influencing adult ants' behavior. Researchers discovered that pupae make sounds similar to adults with 'file and scraper' organs, essential for maintaining social status.

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.

Magnetic map guides salmon home

Researchers found that sockeye salmon imprint on the magnetic field they experience when first entering the sea as juveniles, using it as a homing mechanism. This discovery has practical applications for predicting salmon distribution and understanding the impact of environmental changes on their navigation.

Protein paves the way for correct stem cell differentiation

Researchers from University of Copenhagen identify Fbxl10 as crucial for embryonic stem cell differentiation and suggest it as a potential target for cancer therapy. The protein recruits Polycomb complexes to silence genes, maintaining cellular identity.

Frequent dialysis poses risks for kidney disease patients

A study found that frequent dialysis can cause complications related to repeated access to the blood, including repair procedures and hospitalizations. The risk of these events was 76% higher with daily hemodialysis compared to conventional hemodialysis.

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.

Peering into living cells -- without dye nor fluophore

Researchers at EPFL have created a device that combines holographic microscopy and computational image processing to observe living biological tissues at the nanoscale. Three-dimensional images of living cells can be obtained in just a few minutes with an incredibly precise resolution of less than 100 nanometers.

UAB researchers cure type 1 diabetes in dogs

Researchers from UAB have shown that gene therapy can cure type 1 diabetes in large animals with a single session. The therapy uses a 'glucose sensor' to regulate blood sugar levels, reducing diabetic hyperglycemia and preventing complications.

Excess protein linked to development of Parkinson's disease

Researchers found that excess alpha-synuclein protein disrupts vital recycling processes in neurons, leading to progressive degeneration and cell death. The study provides a structural and mechanistic explanation for the progression of Parkinson's disease, shedding light on its causes and mechanisms.

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.

Permanent stress can cause type 2 diabetes in men

A large population-based cohort study of 7,500 men in Sweden found that permanent stress increases the risk of type 2 diabetes. The study showed that men who reported permanent stress had a significantly higher risk of developing diabetes compared to those with no or periodic stress.

Southern diet could raise your risk of stroke

Research found that a high intake of Southern-style foods, including fried chicken, bacon, and sugary drinks, was associated with a higher risk of stroke. In contrast, those who ate more fruits, vegetables, and whole grains had a lower risk of stroke.

Hopkins researchers uncover key to antidepressant response

Researchers at Johns Hopkins University have discovered a key protein that antidepressants and electroconvulsive therapy target to relieve depression by stimulating stem cells in the brain. This finding could lead to genetic tests to predict individual responses to therapy and develop new treatments.