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Science News Archive 2009


Page 94 of 277

Circulating tumor cells a must watch

Researchers developed a simple biological imaging system to visualize live tumor cells in peripheral blood. The technology reflects the tumor burden, decreasing upon primary tumor removal, holding promise for clinical benefit.

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.

University of Guam receives Sea Grant Extension Program grant

The University of Guam received a $370K Sea Grant Extension Program grant to focus on youth outreach and environmental stewardship. The program aims to improve K-12 science curricula, promote environmental awareness, and support sustainable practices in coastal resource management.

Cradle and birthday of dog identified

Researchers at KTH in Stockholm have made new discoveries about the history of the dog, pinpointing its birthplace to Asia south of the Yangtze River in China 16,000 years ago. The findings suggest that the dog descended from a large number of tamed wolves, with several hundred animals involved in its origins.

New design keeps buildings standing and habitable after major earthquakes

A new earthquake-resistant structural system has been successfully tested in Japan, demonstrating its ability to make buildings far more damage resistant and easier to repair. The system dissipates energy through steel frames that rock off their foundation under large earthquakes, confining damage to replaceable parts.

PROTECT study

The PROTECT trial found that rolofylline had no significant effect on primary or secondary end-points in patients with acute heart failure, including dyspnea improvement and persistent renal impairment. The study did show an increased risk of neurological events in rolofylline-treated patients.

Progress made in traumatic brain injury treatment and diagnosis

Studies show that prototype helmets can improve blunt-impact protection for ground troops without compromising ballistic protection. A survey also reveals high incidence of driving-related anxieties among post-deployment soldiers, highlighting the need for better tools for diagnosis and treatment of traumatic brain injury in the civili...

Apple iPhone 17 Pro

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

Over time, an invasive plant loses its toxic edge

A new study finds that garlic mustard's fungus-killing toxin levels decrease over time, undermining its invasive advantage. This decline enables native plants to return and outcompete the invasive species.

Promise of nanodiamonds for safer gene therapy

Researchers at Northwestern University developed a novel gene delivery technology using nanodiamonds, achieving 70 times greater delivery efficiency than conventional methods. The surface-modified particles successfully delivered DNA into mammalian cells while preserving biocompatibility.

How alcohol blunts the ability of hamsters to 'rise and shine'

A study with hamsters shows that chronic alcohol consumption blunts the biological clock's ability to synchronize daily activities to light. The research suggests that this disruption can have long-lasting effects on the body's internal clock, even after withdrawal from alcohol.

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.

PET/CT scans may help detect recurring prostate cancer earlier

A new study published in The Journal of Nuclear Medicine shows that PET/CT scans with the imaging agent choline can detect recurring prostate cancer sooner than conventional imaging technologies. Researchers found a strong association between PET/CT detection and PSA levels, and suggest using specific criteria to reduce unnecessary scans.

Results from the European CRT survey

The survey enrolled 2438 patients with a mean age of 68 years, showing characteristic differences between those receiving CRT-P and CRT-D devices. Demographic and economic factors play a significant role in device selection, with younger patients, men, and those with ischaemic aetiology more likely to receive a CRT-D device.

Results from the Kyoto heart study

The KYOTO HEART Study found that valsartan significantly reduced the incidence of cardiovascular events, including angina pectoris and stroke/TIA, in Japanese hypertensive patients. The study showed a lower rate of primary endpoints in the valsartan arm compared to non-ARB conventional therapies.

A new molecule to combat diabetes and obesity

A new molecule has been discovered that can treat type 2 diabetes and reduce weight gain by activating the protein TGR5. The study found that INT-777, a selective TGR5 activator, increases GLP-1 secretion and energy expenditure, leading to improved blood sugar control and weight loss.

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 study compares after-hours and daytime surgery success rates

A new study by the American Academy of Orthopaedic Surgeons found that patients undergoing after-hour orthopedic surgeries experience slightly higher rates of necessary follow-up surgeries compared to daytime surgeries. The data also suggests that nighttime surgery patients have similar healing times, recovery periods, and major compli...

Human Tissue Act may have helped research, says study

A new study from the University of Leicester suggests that the Human Tissue Act 2004 may have facilitated medical research by giving Research Ethics Committees clearer guidance. The study analyzed letters written by ethics committees before and after the Act's implementation, concluding that committees were less likely to raise concern...

Trauma 411: Prolonged surgery should be avoided in certain cases

Prolonged surgery can weaken the immune system, leading to a higher likelihood of complications. Limiting surgical time to less than three hours improves patient outcomes. External fixators are often used to stabilize orthopaedic injuries and allow for staggered surgeries over several days.

Workplace bullying is associated with sleep disturbances

A study published by the American Academy of Sleep Medicine found that workplace bullying is associated with increased sleep disturbances in both men and women. The study, which analyzed data from a large-scale cross-sectional survey in France, found that exposure to bullying was significantly linked to self-reported sleep disturbances.

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.

Irbesartan reduces heart failure in patients with quivering heart

Researchers found that irbesartan reduced the risk of heart failure complications and a combination of stroke and other events by 13-14% in patients with atrial fibrillation. The study also showed significant reductions in hospitalizations for cardiovascular reasons and days spent in hospital.

Researchers link inflammatory diseases to increased cardiovascular risk

Patients with polymyositis and dermatomyositis, autoimmune disorders causing muscle inflammation, are at higher risk of developing cardiovascular disease. The study found that immunosuppressive therapies may have a preventive effect against heart attacks, providing hope for patients hesitant to undergo treatment.

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.

Shifting baselines confound river restoration

Sharp declines in freshwater species are often overlooked, affecting watershed planning and ecosystem restoration. Historical records suggest that species abundances were much greater than today, leading to underestimated effects of European colonization and habitat destruction.

Impact of positive parenting can last for generations

A new study by Oregon State University reveals that positive parenting has a lasting impact on adolescents and parents alike. Children who experienced warm, involved, and consistent parenting were more likely to have close relationships with peers, engage in school, and develop better self-esteem.

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.

Monkeys get a groove on, but only to monkey music

Researchers found that cotton-top tamarins responded to music with emotions such as anxiety and calmness, mirroring human responses. The study suggests that animals use musical elements to convey emotional content, similar to humans, and could have deep evolutionary roots.

Atrial fibrillation: Drugs or ablation?

Atrial fibrillation is a common cardiac arrhythmia affecting over 3 million Europeans, with high mortality rates. Treatment strategies include chronic antiarrhythmic drug therapy and catheter ablation, both effective but with varying side effects and success rates.

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.

Men experience sexual dysfunction during hepatitis C therapy

A study published in Gastroenterology found that men with chronic hepatitis C undergoing antiviral therapy experience common sexual dysfunction, including impairment of desire, function, and satisfaction. The average onset of sexual dysfunction was within four weeks of starting therapy.

MSU researchers use newborn blood data to study cerebral palsy

Researchers are using archived newborn blood spot data in Michigan to investigate the causes of cerebral palsy, a leading disabling motor disorder in children. The two-year study will analyze genetic signatures and potential pathways, including hormonal, inflammatory, and blood-clotting factors.

Special interest groups bipartisan in Congress, MSU scholar finds

A study by MSU scholar Matt Grossmann finds that special interest groups often join bipartisan coalitions to support legislation, contradicting the conventional view. The research also reveals that Democratic and Republican groups are more closely linked than previously thought.

Telemonitoring: A bridge to personalized medicine

Currently only 1% of European patients with implantable cardiac devices are being remotely monitored. Telemonitoring reduces physician workload while maintaining patient safety through early detection of silent arrhythmias.

Map characterizes active lakes below Antarctic ice

Researchers used NASA's ICESat satellite data to create the most comprehensive inventory of Antarctic lakes that actively drain or fill under ice. The study revealed a continental plumbing system more dynamic than previously thought, with 124 active lakes identified and linked to nearby and distant locations.

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.

Laser pulses control single electrons in complex molecules

Physicists and chemists have successfully controlled individual, negatively charged particles within a group of electrons in complex molecules. They used femtosecond laser pulses to manipulate the motion of outer electrons in carbon monoxide molecules.

Patient-doctor communication is worse for blacks than for whites, study finds

A study led by a University of North Carolina researcher found that black patients with high blood pressure experience poorer communication with their doctors compared to white patients. The results showed that black patients had shorter office visits, less biomedical and psychosocial exchange, and less rapport building with their doct...

Wrestling with bighorn sheep

A team of researchers, led by University of Alberta biologist David Coltman, have been studying the personalities of bighorn mountain sheep. They found that bold individuals tend to have shorter lifespans, while those with more submissive personalities are more likely to produce multiple offspring.

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.

Sudden death during sport: Education to improve survival rates

A recent study by the European Society of Cardiology found that public education on cardiac arrest could significantly improve survival rates among athletes. The study analyzed 700 sudden deaths during sport activity in France and found that bystander-initiated CPR increased hospital admission rates fourfold, while electric shock deliv...

Promising new target emerges for autoimmune diseases

University of Michigan scientists have identified a fundamental mechanism regulating immune T-cell activity, with implications for conditions like autoimmune diseases, cancer, and organ transplants. The discovery reveals that regulatory T cells influence aggressive immune cells through redox chemistry.

September 2009 Geology and GSA Today media highlights

Global climate change has a significant impact on deep-sea microfossil communities, with different groups responding differently to extinction events. In the Fraser River delta, anthropogenic subsidence is increasing relative sea-level rise by a factor of 2-5 times due to man-made structures.

Celestron NexStar 8SE Computerized Telescope

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

Patient perception is vital when reporting medical errors

Patients' perceptions of what was said by the physician were more important than what was actually said. A full apology and acceptance of responsibility by the physician in error led to better ratings and greater trust among viewers. However, this did not significantly affect the likelihood of patients suing physicians.

Super-fast computers of the future receive funding boost

A new £6 million research programme aims to develop nanoplasmonic devices that can process information using light signals, potentially leading to faster data processing speeds. The project, funded by the EPSRC, is being conducted at Queen's University Belfast and Imperial College London.

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.

Inflammatory disease treatments will improve through the use of lipidomics

Researchers at the University of Missouri have completed a comprehensive analysis of bioactive lipids in an inflammatory response triggered by Lyme disease. The study found correlations between eicosanoid levels and arthritis severity, paving the way for diagnostic tools, personalized therapies, and more effective treatments.

From fat to chronic inflammation

A new study reveals that angiopoietin-like protein 2 (Angptl2) is a primary contributor to chronic inflammation in fat tissue, exacerbating conditions like diabetes and cardiovascular disease. Elevated Angptl2 levels have been found in obese individuals and those with insulin resistance.

Medical home gives patients better primary care at no more cost

A one-year evaluation demonstrates the benefits of the patient-centered medical home model, which provides personalized care, prevention, and coordination. The study found significantly fewer emergency room visits and hospitalizations among patients with access to a medical home.

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.

Getting better visualization of joint cartilage through cationic CT contrast agents

Researchers at Boston University have developed new computer tomography contrast agents that selectively bind to glycosaminoglycans in articular cartilage, improving visualization and sensitivity for diagnosing osteoarthritis. The study's findings show that these cationic agents are three times more sensitive than current contrast agents.

Immediate intervention for patients with ACS not always more beneficial

A new study published in JAMA suggests that immediate intervention for patients with acute coronary syndromes (ACS) may not provide a significant advantage in terms of outcomes. However, the strategy can still reduce hospital stay duration. The study evaluated data from 352 patients with ACS and found that both immediate and delayed in...

Prodrug could help curb skin toxicity related to EGFR-inhibiting cancer drugs

Researchers from Thomas Jefferson University developed a prodrug that could potentially reduce or avoid skin toxicity associated with EGFR-inhibiting cancer drugs. The prodrug is designed to preferentially bind to tumor tissue, reducing side effects. By targeting the tumor site, the prodrug can minimize damage to normal tissues.