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Science News Archive May 2008


Page 7 of 22

How to diagnose primary malignant fibrous histiocytoma?

Primary pancreatic MFH is a rare entity with distinct clinical characteristics, requiring prompt diagnosis for effective treatment. Characteristic imaging findings include large, liquescent-necrosis masses or multilocular cystic lesions with calcification on CT scans.

Climate change does double-whammy to animals in seasonal environments

Research on caribou in West Greenland reveals that climate change is affecting not only the timing of plant growth but also the availability of nutritious food. This 'trophic mismatch' leads to reduced births and increased deaths among caribou calves, highlighting the need for conservation efforts to protect seasonal animals.

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.

Researcher strives for watershed moment

A researcher at the University of Western Ontario is studying the relationship between global warming, nutrient enrichment, and lake systems to understand the complex dynamics of climate change. The study aims to identify how human activities impact regional temperature, hydroclimates, and aquatic ecosystems.

A foamy drink and the future of food

Tejate, a traditional Maize and Cacao Beverage from Oaxaca, Mexico, holds the key to understanding the future of agriculture and food variety. The authors found that tejate is in decline in modern communities but remains associated with traditional farmers' varieties, which are essential for preserving crop diversity.

A better method of chemosensitivity testing on gastric cancer

A new method of chemosensitivity testing was found to provide predictive information that could lead to better treatment outcomes for gastric cancer patients. The study's results showed a longer overall 5-year survival time in the sensitive group compared to the control group.

A biomimetic jumping microrobot

Researchers developed a biomimetic jumping robot inspired by grasshoppers, capable of jumping 1.4 meters and navigating rough terrain with ease. The tiny robot can be fitted with sensors and solar cells to aid in search and rescue operations or explore remote areas on Earth or other planets.

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.

Energy crops take a roasting

A study by University of Leeds engineers found that roasting energy crops using the torrefaction process can increase their energy content, reducing transportation costs and emissions. Willow emerged as the most favourable crop, retaining 86% of its mass and performing best in terms of energy yield.

Argonne scientists develop way to predict properties of light nuclei

Researchers at Argonne National Laboratory have developed a new method to predict the properties of light nuclei, allowing for better understanding of element origins and star behavior. This breakthrough enables more accurate calculations of nuclear reaction rates, which are crucial for astrophysics experiments.

Storn winds blow in Jupiter's Little Red Spot

A team of scientists from Johns Hopkins University used data from NASA's New Horizons spacecraft and multiple telescopes to observe the high winds in Jupiter's Little Red Spot. The winds have increased substantially over previous storms, with maximum speeds reaching 384 miles per hour, surpassing Category 5 storm thresholds.

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.

Scientists discover how common vaccine booster works

Researchers found that alum stimulates clusters of proteins called inflammasomes, which respond to stresses such as infection or injury by releasing immune cell signaling proteins. This discovery provides evidence for the role of Nalp3 inflammasome in alum's adjuvant action.

Apple iPhone 17 Pro

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

Elevated serum HBV DNA level increases risk of hepatocarcinogenesis?

A nested case-control study found that high HBV DNA levels are associated with an increased risk of hepatocellular carcinoma. Patients with higher viral loads have a heightened potential for developing liver cancer, suggesting a potential correlation between viral load and liver cancer development.

Halting methane squanderlust

Scientists have determined the structure of a catalytic material that can convert methane into benzene, laying the foundation for converting excess methane into various useful fuels and chemicals. The breakthrough was achieved using an ultra-high field nuclear magnetic resonance spectrometer to analyze the active catalyst.

A promising biomarker to diagnosis gastric and colorectal cancer

Researchers found that serum RASSF1A promoter hypermethylation is a promising biomarker for diagnosing gastric and colorectal cancer. The study detected higher rates of this abnormality in tumor tissues and patient sera compared to benign disease or healthy individuals.

Celestron NexStar 8SE Computerized Telescope

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

Gatekeepers are discovered in the human cell 'shredder'

Researchers at Goethe University Frankfurt have discovered two gatekeeper proteins, Rpn13 and an ubiquitin receptor, on the proteasome. This finding has significant implications for cancer research, as it may lead to the development of targeted drugs that can block protein breakdown and prevent tumor cell proliferation.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Quitting smoking helps social life

Research found that quitting smoking is linked to a cultural shift, with groups of spouses, friends, siblings, and co-workers giving up the habit at the same time. Closer relationships have a greater impact on quitting, with education playing a role in influencing behavior.

Supernova birth seen for first time

Astronomers have witnessed a star dying in real-time for the first time, marking a major breakthrough in understanding supernovae. The team used NASA's orbiting Swift telescope to detect an extremely luminous X-ray blast from the explosion, confirming that it was indeed a supernova.

Gladstone scientists reveal the genetics of fat storage in cells

Researchers at Gladstone Institutes have identified genes responsible for fat storage in cells, which may lead to new understanding and potential treatments for obesity, diabetes, and heart disease. The study found that ~1.5% of all genes function in lipid-droplet formation and regulation.

ICU physicians less likely to discuss prognoses with African-American patients

A new study reveals that ICU physicians are less comfortable discussing end-of-life issues and do it less frequently with African-American patients than with Caucasian patients. Researchers analyzed data from over 1,200 physicians and found a significant disparity in prognostic conversations with patients of different racial backgrounds.

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.

Many paths, few destinations: How stem cells decide what they'll be

Researchers found that stem cells differentiate through the collective behavior of multiple genes in a network, leading to just a few endpoints. The findings also suggest that cell populations maintain built-in variability that nature can harness for change under the right conditions.

Meta Quest 3 512GB

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

Fluorescent nano-barcodes could revolutionize diagnostics

Researchers have developed fluorescent nano-barcodes that can detect biomolecules with high precision, surpassing existing methods like microarrays. This technology has the potential to accurately diagnose diseases and identify new molecular markers associated with them.

Smokers flock together, quit together

A study found that smokers tend to quit in groups, with entire clusters of spouses, friends, siblings, and co-workers giving up the habit concurrently. Close relationships within the social network have a significant influence on quitting smoking.

EARLINET, European research for climatic change analysis

The European research project EARLINET-ASOS is analyzing the effects of atmospheric aerosol particles on climate change. By monitoring aerosol concentrations and origins across Europe, scientists aim to improve predictions of climate systems.

Iraq war service: A risk factor for bronchiolitis?

A large group of soldiers returning from Iraq were diagnosed with bronchiolitis, a disease affecting the small airways of the lung. Prolonged exposure to sulfur dioxide from a mine fire near Mosul, Iraq in 2003 was found to be a major risk factor for the condition.

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.

USC stem cell study sheds new light on cell mechanism

Researchers at USC have discovered a method to keep embryonic stem cells undifferentiated by shielding them from differentiation signals. This breakthrough could lead to the large-scale production of specialized cells for future therapeutic use.

Is laparoscopic biliary tract reoperation feasible and safe?

A recent case report indicates that laparoscopic biliary tract reoperation is a safe and viable option for patients with choledocholithiasis who have failed or are contraindicated for endoscopic sphincterotomy. The procedure appears to be feasible when performed by experienced laparoscopic surgeons.

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.

Smoking is addictive, but quitting is contagious

Researchers analyzed 32-year longitudinal data to discover that people quit smoking in network clusters, influenced by education and marginalization. The study suggests that smoking cessation is a social phenomenon, highlighting the interconnectedness of health and social networks.

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.

Biodiversity as a natural resource

The TEEB report estimates that biodiversity offers $5 billion in ecosystem services per year, but loss could exacerbate global poverty and climate change. The project aims to address the economic value of biodiversity and its impact on human survival.

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.

Sleep deprivation affects ability to make sense of what we see

Neuroscience researchers found that sleep-deprived brains can process simple visuals but struggle with higher-level visual tasks, such as recognizing letters. The study suggests that sleep deprivation can lead to periods of normal functioning followed by severe drops in visual processing and attention.

Liver diseases: striving toward better diagnosis and treatment

Scientists have created human liver cells from embryonic stem cells, enabling drug toxicity studies and potential treatments for liver diseases. Researchers also found that innate immunity influences the response to treatment for chronic hepatitis C and discovered a link between urinary tract infections and primary biliary cirrhosis.

Protein key to neuro-regeneration

Researchers at Peninsula Medical School have identified a protein called c-Jun that plays a vital role in the regeneration of damage in the peripheral nervous system. This discovery could lead to understanding and treating diseases such as Charcot-Marie-Tooth disease and Guillain-Barre disease.

What roles does TSP-1 play in liver fibrogenesis?

Thrombospondin 1 (TSP-1) expression correlates with the progression of fibrosis and angiogenesis in experimental cirrhosis. The study suggests that TSP-1 may contribute to wound healing response to liver injury by inducing angiogenesis.

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.

What else may probiotics do in adults?

A study found that probiotics have anti-inflammatory potential in healthy adults, characterized by decreased serum CRP levels and reduced production of proinflammatory cytokines. This suggests a possible therapeutic application for probiotics in the prevention or treatment of inflammatory diseases.