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Science News Archive May 2009


Page 1 of 22

Penn researchers discover genetic risk factor for testicular cancer

A study published in Nature Genetics found that men with two copies of the KITLG gene have a 4.5-fold higher risk of testicular cancer, while those with two copies of the SPRY4 gene have a 1.48-fold higher risk. The discovery sheds light on genetic factors contributing to the disease and may help identify critical environmental factors.

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.

MicroRNAs grease the cell's circadian clockwork

A study by Ueli Schibler's team reveals that a specific microRNA called miR-122 plays a crucial role in regulating the expression of circadian genes in liver cells. The discovery sheds light on the molecular mechanisms controlling the internal clock and its potential connection to hepatitis C virus replication.

2-drug combination appears safe and active in metastatic kidney cancer

A phase I trial found a two-drug combination of temsirolimus and bryostatin to be safe and active in patients with metastatic kidney cancer. The combination showed sustained responses in some patients, particularly those with rare forms of renal cell carcinoma that don't respond well to standard therapies.

Combined stem cell-gene therapy approach cures human genetic disease in vitro

A team of researchers has successfully developed a combined stem cell-gene therapy approach that cures human Fanconi anemia, a genetic disorder causing bone marrow failure and cancer. The treatment uses induced pluripotent stem cells to differentiate into healthy blood cells, offering a potential cure for the disease.

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.

Liver disease 'shrunk' by blood-pressure drug

A clinical trial has shown that losartan, a blood-pressure medicine, can shrink liver scarring and allow the organ to repair itself in some patients with early-stage liver failure. The drug works by blocking a signalling pathway that causes scar tissue to accumulate, allowing the damaged area of the liver to be repaired.

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.

Pitt melanoma researchers present novel findings at ASCO

Researchers at the University of Pittsburgh Cancer Institute have identified eight genes that can predict a patient's response to melanoma treatment. The study, presented at the ASCO annual meeting, used Neural Network Analysis to survey over 25,000 genes and regulators in tumor tissues from 21 patients with metastatic melanoma.

Apple iPhone 17 Pro

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

Vaccine shows therapeutic promise against advanced melanoma

The study found that those who received the vaccine had a significant response rate of 22.1% and progression-free survival of 2.9 months compared to 9.7% and 1.6 months respectively in those that did not. The median overall survival for those receiving vaccine trended positive at 17.6 months.

Recognizing signs and symptoms of acute HF

Acute exacerbations of heart failure are frequent and serious, but recognizing early warning signs can minimize delays in treatment. Shortness of breath is the most common symptom, often described as suffocation or heavy breathing. Families should also be taught to recognize other symptoms such as cough, chest pain, and fatigue.

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.

Hearing, voice problems worsen seniors' communication skills

Researchers at Duke University Medical Center found that nearly half of people age 65 and older have hearing loss, while one-third have vocal problems. The study suggests a causal relationship between the two disabilities, which can increase depression scores and social isolation.

Ballerinas and female athletes share quadruple health threats

A study by the Medical College of Wisconsin found that young female professional dancers face similar health risks as female athletes due to inadequate nutrition and menstrual irregularities. The researchers studied 22 ballerinas and found that 36% had disordered eating habits, 27% were amenorrheic, and 23% had low bone density.

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.

Indiana U. research at the American College of Sports Medicine conference

A study by Indiana University researchers found that the ingestion of caffeine within an hour of exercise can reduce the symptoms of exercise-induced asthma (EIA). Smaller amounts of caffeine also reduced wheezing, coughing and other symptoms of EIA. The study extended earlier research on caffeine's effectiveness in reducing EIA symptoms.

Novel biomarkers in heart failure

Several novel biomarkers have been discovered in heart failure syndrome, including ST2, troponins, AGEs, adrenomedullin, and estradiol. These biomarkers offer valuable information for diagnosis, risk stratification, and treatment monitoring, as well as providing insights into the disease's underlying pathophysiology.

Surgery not necessary for most late-stage colorectal cancers

A new study by Memorial Sloan Kettering Cancer Center found that most patients with stage IV colorectal cancer do not require surgery to remove the primary tumor. Chemotherapy is an effective treatment option for these patients, allowing them to avoid surgical complications and start treatment sooner. The retrospective study analyzed 2...

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.

AGU journal highlights -- May 29, 2009

Scientists have discovered new ways to measure thundercloud electrostatic fields, study the link between tropical cyclones and global warming, and understand the adhesive properties of lunar dust. Researchers also explored the role of clouds in global electricity and found significant water storage and runoff patterns in the Amazon basin.

Environmental pollution increases the risk of liver disease

A study presented at DDW 2009 found that over one-third of US adults have liver disease, with some cases potentially attributed to environmental pollution. Researchers used the NHANES dataset to examine the association between low-level exposure to 111 common pollutants and unexplained liver disease in adults.

Omega fatty acid balance can alter immunity and gene expression

A controlled diet study with human volunteers found that a 2:1 w6/w3 ratio mimics early human diets can reduce inflammatory signaling genes. This study provides the first evidence of large changes in gene expression as a mechanism for omega fatty acids' clinical effects

Sweden to host 1.3 billion Euro research center

The European Spallation Source will be built in Lund, Sweden, with a budget of €1.3 billion. The facility will enable scientists to study the atomic and molecular arrangement of a range of materials at unprecedented detail.

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.

Slicing chromosomes leads to new insights into cell division

Researchers at the University of Michigan have developed a new understanding of how chromosomes separate during mitosis, a crucial process in cell division. By manipulating chromosome size and observing its effect on movement, they validated the theory that polar ejection forces play a central role in guiding chromosome movements.

AGA Institute presents cutting-edge research during DDW

The AGA Institute will present exciting data on treatments for Clostridium difficile infection, hepatitis C, and Crohn's disease. The late-breaking session includes studies on optimized therapies and new technologies, which may become the standard of care in the near future.

Theorists reveal path to true muonium

Theoretical work by SLAC researchers reveals two methods for detecting true muonium's formation and decay in electron-positron accelerators. These methods use relativistic effects to create a stable signature, making observation of the exotic atom feasible. The discovery has the potential to reveal new forms of matter.

Study suggests obese women should not gain weight

A study suggests that obese women should not aim to gain excessive weight during pregnancy, challenging previous guidelines. Instead, a well-balanced and nutritionally monitored program can provide better health outcomes for both mother and baby.

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.

Lasers are making solar cells competitive

Researchers at Fraunhofer Institute for Laser Technology are developing laser technologies to improve the manufacturing of solar cells, increasing their performance and reducing costs. The goal is to achieve grid parity within a few years, making solar energy competitive without subsidies.

Chemotherapy combination outcomes differ for aged, younger colon cancer patients

A new study reveals that combining chemotherapy agents with 5FU increases disease-free survival for patients under 70, but does not provide similar benefits for those aged 70 and older. The research found that the aggressive treatment strategy is better tolerated by younger patients, while older patients may experience more side effects.

Marijuana rivals mainstream drugs for HIV/AIDS symptoms

A new study published in Clinical Nursing Research found that marijuana use is common among HIV/AIDS patients in the US to alleviate symptoms such as anxiety, depression, and nausea. The study suggests that therapeutic marijuana use merits further consideration among policy makers, despite potential risks associated with its use.

Height of large waves changes according to month

Researchers developed a statistical model to measure extreme wave heights, revealing seasonal variations in different locations. The study's findings have vital importance for coastal management, marine construction, and understanding biological processes.

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.

Author says challenging simple concepts can save planet

Frances Moore Lappé argues that five key assumptions about the world's functioning are holding back sustainable progress. She proposes challenging these ideas by adopting renewable energy sources, promoting efficient growth models, and prioritizing individual empowerment over authoritarian control.

Policy gurus advocate community-based approaches to senior housing

The Gerontological Society of America's Public Policy & Aging Report explores community-based approaches to senior housing, including home modification and aging-friendly communities. The report also examines the limitations of aging in place and critiques upscale age-restricted communities.

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.

DOE JGI releases expanded version of Phytozome.net

The DOE JGI has released an enhanced version of Phytozome.net, a web portal providing access to over fourteen plant genomes, including eight sequenced at the JGI. This expansion bolsters comparative plant genomics data for biofuel and agriculture research.

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.

Sugarcoating fruit fly development

Researchers found that adding a sugar tag to nuclear proteins is vital for normal development in fruit flies, revealing a critical link between Ogt and Polycomb protein function.

Task Force on American Innovation to honor US House Speaker Nancy Pelosi

The Task Force on American Innovation presents its "Legislator of the Year" Award to US House Speaker Nancy Pelosi in recognition of her commitment to increasing federal funding of basic research in physical sciences. The award is a testament to her vision and leadership in promoting scientific innovation.

Spanish prostitutes least likely to use condoms

A recent study published in Sexually Transmitted Diseases found that Spanish prostitutes are least likely to use condoms with their clients. The study, which surveyed 400 female sex workers, revealed that 95.5% of sex workers use condoms during vaginal sex with clients, but only 12.4% do so with their regular partners.

Resilin springs simplify the control of crustacean limb movements

Researchers have discovered that crustaceans use resilin springs to simplify brain control of limb movements, allowing for more efficient energy storage and reduced nervous system activity. This unique mechanism enables crabs and crayfish to coordinate their limb movements at an impressive 20 times per second.

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.

Study finds unexpected bacterial diversity on human skin

A recent study published in Science reveals that the skin microbiome is much more diverse than previously thought, with varying levels of bacteria at different body sites. The research found that dry and moist skin had a broader variety of microbes than oily skin, and that certain skin areas were more stable over time.

Ghost remains after black hole eruption

Astronomers observe a high-energy apparition, known as an X-ray ghost, lingering around a supermassive black hole in the Chandra Deep Field-North. The source, HDF 130, is 10 billion light years away and existed 3 billion years after the Big Bang.

Antibiotic-resistant bacteria found in fertilizer

Researchers have detected vancomycin resistant enterococci (VRE) in Swedish sewage sludge, highlighting the potential for antibiotic resistance genes to spread through the food chain. The study emphasizes the need for more efficient treatment of sewage sludge to prevent the spread of antimicrobial resistance.

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.