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Science News Archive 2010


Page 189 of 283

Most patients lack early follow-up care after heart failure hospitalization

A study of over 30,000 Medicare beneficiaries found that fewer than 40% received follow-up care within seven days of discharge. Patients with consistent follow-up were 15% less likely to be readmitted within 30 days. Implementing a simple follow-up system can prevent readmissions and improve patient outcomes.

Popular diabetes drug works differently than thought

Researchers discovered that metformin disables the mTOR complex through RAG GTPase, rather than activating TSC proteins via AMPK. This finding raises the possibility of using metformin more widely to treat cancer and diseases linked to TSC deficiency.

Faster Salmonella detection now possible with new technique

A new method for detecting and genetically identifying salmonella from contaminated foods can provide DNA sequencing-like results in hours, rather than days. This could help recognize outbreaks sooner and stop tainted food from being delivered.

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.

Pneumonia vaccine does not protect against heart attacks or strokes

A recent study published in the Journal of the American Medical Association found that pneumococcal vaccination has no association with reduced risk of heart attacks or strokes. Researchers used electronic health records to follow 84,170 ethnically diverse California men for an average of five years.

Researchers find melanoma not caused by early UVA light exposure

A fish model experiment reverses an earlier finding linking early life UVA exposure to melanoma development. The study finds that UVB exposure is a significant cause of melanoma in the model, contradicting previous research. This new evidence sheds light on the role of UVA and UVB in skin cancer.

Bees that nest in petals

Researchers discovered a rare species of solitary bee that lines its underground nests with petals from various flowers. This unique behavior provides essential nutrients for the larvae's growth and protects them from the harsh winter conditions.

Apple iPhone 17 Pro

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

Viruses against cancer

Researchers have found that parvoviruses can completely regress malignant brain tumors in rats and human gliomas. The viruses target cancer cells without affecting healthy tissue, making them a potential new approach to treating glioblastoma.

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.

Scientists outline strategy to limit global warming

Researchers recommend stabilizing carbon dioxide concentrations, fashioning warming-neutral pollution laws, and achieving immediate cooling through reductions in greenhouse gases. The proposed strategies aim to reduce the probability of reaching the temperature threshold to less than 10 percent before 2050.

Medical home pays off, improving primary care and cutting cost at 2 years

The medical home prototype improved quality of care, patient experiences, and clinician well-being, with significant cost savings through reduced emergency visits and hospitalizations. The study's findings support the model's ability to address healthcare concerns and provide recommendations for implementation.

Researchers find future temperatures could exceed livable limits

Researchers calculated that a warming of 12 degrees Fahrenheit would cause some areas to surpass the wet-bulb temperature limit, while a 21-degree warming would put half of the world's population in an uninhabitable environment. Prolonged temperatures above 95 degrees could be intolerable for hours.

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.

Fear of pandemic influenza clogs EDs even when disease is not present

A study shows that public fear of disease can lead to overcrowding in emergency departments, even when the actual disease is not present. The American Academy of Pediatrics calls for responsible media coverage of public health emergencies to prevent unnecessary strain on medical facilities.

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.

Declining social security benefits keep older men in workforce

A new study suggests that declining Social Security benefits are a leading cause of older men staying in the workforce. The study found that between 25 and 50 percent of the increase in labor force participation among men aged 55-69 can be explained by declining benefits.

Racial disparities evident in taking sexual histories in emergency departments

A new study reveals racial disparities in emergency department documentation of sexual histories for adolescent girls, with black teens more likely to have their history documented than white teens despite higher STI incidence rates. This finding highlights the need for standardized care and attention to racial disparities in healthcare.

Physical activity reduces the effect of the obesity gene in adolescents

A Spanish study led by researchers shows that regular physical activity during adolescence can reduce the impact of a mutated FTO gene on weight and body fat. The study suggests that even modest amounts of exercise, such as one hour per day, can counteract genetic predispositions to obesity.

Key mechanism identified in metastatic breast cancer

Researchers at the University of Kentucky Markey Cancer Center have discovered a key molecular mechanism behind breast tumor cell spread. The finding focuses on Snail's interaction with LSD1 enzyme, which regulates DNA structure and shuts down E-cadherin gene expression, leading to metastasis.

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.

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.

Less sleep may add up to more pounds in adolescents

A study of 723 adolescents found that shorter sleep duration was related to higher BMI, with stronger associations in boys and middle school students. The research suggests that inadequate sleep may be a risk factor for childhood obesity.

Important control mechanism behind autoimmune diseases discovered

A team of researchers at Karolinska Institutet has discovered a crucial role for NKT cells in regulating B cell activation and preventing autoimmunity. This finding provides new insights into the mechanisms underlying autoimmune diseases, such as MS and rheumatoid arthritis.

Heart drug effective for treating symptom of muscular dystrophy

Researchers at the University of Rochester Medical Center found that mexiletine is effective in alleviating myotonia, a central symptom of myotonic dystrophy. The medication reduces muscle stiffness and relaxation time by 38-59% in patients with the condition.

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.

H1N1 influenza hits older children

A study found that older children hospitalized with pandemic H1N1 influenza had more severe medical conditions than those with seasonal influenza. Vaccination is crucial for this age group and those with pre-existing conditions to prevent hospitalization.

Bionic coating could help ships to economize on fuel

Researchers have discovered a way to create superhydrophobic surfaces based on water ferns, which could reduce friction and save up to 1% of global fuel consumption. The coating is made possible by the unique properties of the plant's hairs, which are hydrophobic but also have hydrophilic tips that 'staple' water in place.

ARS scientists identify genetic resistance to rice sheath blight

Researchers at ARS Dale Bumpers National Rice Research Center have identified a genetic region qShB9-2 that controls sheath blight in rice. They also developed a standardized screening technique to detect the disease in seedlings, accelerating the process of identifying resistant germplasm.

Celestron NexStar 8SE Computerized Telescope

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

Pay-for-performance programs may worsen medical disparities, study finds

A new study by RAND Corporation suggests that pay-for-performance programs could worsen medical disparities, particularly in communities with lower-income and minority populations. The study found that practices serving these communities would receive lower payments under typical pay-for-performance programs.

Male or female? In flies, some cells can't tell

Researchers found that a subset of cells in flies express sex-specific genes, while others remain identical in males and females. This discovery has profound implications for our understanding of sex differences in the animal kingdom and may have relevance to human biology as well.

By 2030, cardiovascular disease and death rates will surge in China

Researchers predict a significant increase in cardiovascular disease events and deaths in China between 2010 and 2030, driven by demographic changes and rising risk factors. Dramatically reducing smoking and controlling elevated blood pressure could prevent up to 5.7 million deaths by 2030.

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.

Scripps researchers outline strategy to limit global warming

Researchers propose a multi-faceted approach to avoid exceeding the 2-degree C temperature threshold, including reducing methane, hydrofluorocarbons, and other greenhouse gases. They advocate for aggressive simultaneous pursuit of strategies to stabilize CO2 concentrations and implement warming-neutral pollution laws.

Pancreatic cancer: Minimally invasive treatments and possible links to GI diseases

Researchers confirm a link between pancreatic cancer and inflammatory bowel disease, finding that EUS is as effective as surgery in treating pancreatic pseudocysts. Additionally, studies suggest that intra-abdominal fat can predict survival in pancreatic cancer patients, while new technology shows promise for improved surgical procedures.

Cholesterol drugs may help improve hip replacement outcomes

A new study published in the Journal of Bone and Joint Surgery found that statin use post-operative reduces the need for revision surgery after total hip replacement. Statins have been associated with improved bone metabolism, anti-inflammatory effects, and prognosis after infections, which may improve THR outcomes.

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.

Sanger, Persaud, Marchase receive highest honors from anatomy society

Joseph W. Sanger, T. Vidhya Persaud, and Richard B. Marchase received the highest honors from the American Association for Anatomy for their unique contributions to anatomical sciences. The awards recognize exceptional service and meritorious achievements in education, research, and scientific advancements.

UCLA researchers use new microscope to 'see' atoms for first time

Researchers at UCLA have imaged a virus structure at an atomic resolution of 3.3 angstroms using cryo-electron microscopy, allowing them to study the virus's functionality in its native environment. This breakthrough demonstrates the potential of Cryo-EM for producing high-resolution images of biological samples.

UCSF transgenic mouse mimics Parkinson's earliest symptoms

Researchers at UCSF have created a transgenic mouse model that displays the earliest signs of Parkinson's disease, including constipation and gastrointestinal problems. The model is significant as it validates a theory suggesting the neurological component of Parkinson's is a late-stage effect of a larger systemic problem.

Fluke 87V Industrial Digital Multimeter

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

Rapid analysis of DNA damage now possible

MIT researchers have developed a new tool for rapid DNA damage analysis, combining the comet assay's versatility with high-capacity platforms. The technology enables automated readout and can be used to test potential cancer drugs and detect environmental toxin effects.

Toddlers and TV: Early exposure has negative and long-term impact

A comprehensive study found that every additional hour of TV exposure among toddlers corresponded to a future decrease in classroom engagement and success at math. High levels of TV consumption during early childhood can lead to future unhealthy habits, including increased victimization by classmates and higher body mass index.

Home medication errors common among children with chronic conditions

A recent study by American Academy of Pediatrics found that parents administering medication to children with chronic conditions often make mistakes. The researchers visited the homes of 83 children and reviewed 544 medications, discovering 128 errors, including those that could injure the child.

Making serial parts out of metal powder

Researchers at Fraunhofer Institute use selective laser melting to create serial parts out of metal powder, producing high-quality components with improved safety standards. The process reduces manufacturing cycle times by up to 40% and has the potential to decrease material costs by 50%.

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.

Magnetic stimulation scores modest success as antidepressant

A new study suggests that magnetic stimulation therapy produced significant antidepressant effects in a subgroup of treatment-resistant patients, with remission rates of 14% compared to 5%. The treatment has few side effects and may be an effective alternative for those who don't respond to current medications.

T cell protein boosts learning

A recent study discovered that a protein produced by T cells reduces inflammatory proteins hindering learning, improving navigation in mice trained to find their way through a water maze. Mice lacking this protein suffered from learning disabilities, which could be reversed with IL-4–producing T cells.