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Science News Archive August 2007


Page 2 of 17

How cancer spreads by aggregating platelets

Researchers have identified a protein on the surface of platelets that plays a key role in cancer-induced platelet aggregation, allowing cancer cells to evade the immune system and spread throughout the body. By blocking the interaction between podoplanin and CLEC-2, it may be possible to prevent tumor metastasis.

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.

Gene signature spells poor outcome

Researchers at Johns Hopkins Kimmel Cancer Center have identified a genetic signature associated with aggressive melanomas. The study found that certain genes are linked to an aggressive profile, which could be used to predict patient outcomes and develop tailored therapies.

New research challenges previous knowledge about the origins of urbanization

A new study from Harvard University and colleagues challenges previous knowledge about the origins of urbanization, proposing that smaller groups made decisions leading to city growth. The research analyzed artifacts at Tell Brak in Mesopotamia over an 800-year period, revealing patterns of population growth and settlement clusters.

NASA study predicts more severe storms with global warming

A new NASA model simulates the strength of updrafts in severe storms, predicting more violent thunderstorms and tornadoes with a warmer climate. The study found that continents warm more than oceans, leading to stronger storms with fewer overall.

Apple iPhone 17 Pro

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

Oregon researcher to explore boyhood home of John Paul Jones

Archaeologist Julie M. Schablitsky is leading an exploratory excavation of the grounds on John Paul Jones' boyhood home in Kirkbean, Scotland. The project aims to identify possible locations of outbuildings and cisterns using remote sensing techniques.

Flaxseed shows potential to reduce hot flashes

A pilot study by Mayo Clinic researchers found that flaxseed therapy decreased hot flashes in postmenopausal women by 50% and improved their quality of life. The study also showed improvements in mood, joint pain, and overall health.

Rovers begin new observations on changing Martian atmosphere

Scientists using the Alpha Particle X-ray Spectrometer instrument have observed fluctuations in argon composition of the Martian atmosphere. The study reveals a constant change in the ratio of argon to carbon dioxide as winter sets in at one of the poles, indicating mixing between polar air and tropics.

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.

Supersonic 'rain' falls on newborn star

Astronomers have discovered five Earth-oceans' worth of water falling onto a protoplanetary disk around an extremely young star, IRAS 4B. The 'disk-accretion shock' mechanism is responsible for the formation of planetary systems, and this finding provides valuable insights into the early stages of our solar system's life.

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.

Cannibalistic signals help mammalian embryos develop normally

Autophagy plays a crucial role in removing dying embryonic stem cells during normal development, preventing detrimental inflammation. The study found that mouse embryos lacking autophagy genes had impaired signals for engulfment by healthy cells, leading to abnormal development.

Transgenic maize is more susceptible to aphids

A study by Cristina Faria and colleagues found that transgenic Bt maize lines are more susceptible to the aphid Rhopalosiphum maidis than conventional maize. However, this increased susceptibility may be beneficial in regions where aphids are a major problem, as they can aid in controlling caterpillars.

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.

ZIP codes and property values predict obesity rates

Researchers found a strong correlation between median home prices and local obesity rates, with 2% drop for every $100,000 increase. The study also revealed six-fold disparities in obesity rates across the Seattle metropolitan area, with disadvantaged areas affected the most.

Researchers aim to make Internet bandwidth a global currency

A novel peer-to-peer video sharing application is being used to explore a next-generation model for safe and legal electronic commerce. The platform rewards users for uploading content, allowing them to download faster and more securely. Researchers envision a global marketplace where bandwidth is the primary currency.

Flies prefer fizzy drinks

Researchers at UC Berkeley discovered that fruit flies have taste cells specific to carbonation, which encourages them to consume food with growing microorganisms. The discovery suggests that other animals may have taste receptors tuned to important chemicals in their environment.

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.

Discovery could help stop malaria at its source -- the mosquito

Researchers discovered that heparan sulfate is a receptor for the malaria parasite, allowing it quick transport through the body. This finding could lead to an environmentally safe and inexpensive way to block infection in mosquitoes, preventing malaria spread without drug side effects.

Smoking turns on genes -- permanently

Researchers identified genes that are irreversibly activated by smoking, leading to increased lung cancer risk in former smokers. The study's findings provide insight into why former smokers remain susceptible to lung cancer despite quitting.

Biologic treatment for rheumatoid arthritis and the risk of cancer

A study of 13,001 RA patients reveals that biologic treatment increases the risk of skin cancers, including melanoma, but not other types of cancer. The research suggests that current biologic therapy may be safe for RA patients, providing reassurance for those considering treatment.

U-M researchers dispute widely held ideas about stem cells

Researchers at University of Michigan dispute the immortal strand hypothesis, which suggests adult stem cells minimize genetic mutations through a non-random DNA segregation process. They found no evidence supporting this idea in blood-forming mouse stem cells.

Celestron NexStar 8SE Computerized Telescope

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

Device helps patients survive, regain function til transplant

A new generation of implanted heart-assisting pump has shown excellent survival rates and significant improvements in patient quality of life. The device, called the HeartMate II, helped 75% of patients stay alive for at least six months or until a donor heart became available.

Inhaling nitric oxide helps transplant success

A new study found that inhaling nitric oxide during liver transplantation reduces hospital stays and improves blood-clotting and liver-enzyme activity. The treatment also protects transplanted livers from cell death, promising relief for donor-organ shortages.

Amber specimen captures ancient chemical battle

A study by Oregon State University researchers identified a soldier beetle preserved in amber, showcasing an ancient chemical defense response. The discovery indicates that this type of protective mechanism has been around for over 100 million years.

Volcanoes key to Earth's oxygen atmosphere

The emergence of oxygen-producing cyanobacteria released oxygen at levels similar to today, but it had nowhere to go. Terrestrial volcanoes later arose and dominated, increasing oxygen levels in the atmosphere.

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.

NASA study will help stop stowaways to Mars

A recent NASA study used gene sequencing to detect a vast array of bacteria in clean rooms, including newly discovered species. The findings will aid in improving cleaning and sterilization methods to prevent false-positive results in detecting extraterrestrial life.

Back to School: Cramming doesn't work in the long term

New study reveals that overlearning vocabulary through repeated drilling results in no long-term retention, while massing all study on a single topic into a single session reduces long-term retention. Breaks of at least a month between study sessions also improve learning outcomes.

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.

Researchers find new taste in fruit flies: carbonated water

Fruit flies have been found to detect and be attracted to the taste of carbon dioxide dissolved in water, which may aid in scouting for nutritious food. This discovery suggests that humans may also be able to taste carbon dioxide, making their sense of taste more complex.

Gene regulation in humans is closer than expected to simple organisms

Researchers identified a large fraction of functional transcription factor binding sites near human gene transcriptions, challenging traditional views of complex organism regulation. This discovery could aid in identifying transcriptional networks underlying cellular processes and diseases.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

The next generation: nanomagnets could replace semiconductors

University of Houston professor Dmitri Litvinov develops nanomagnetic computing systems that combine logic, memory, and data storage in a single system. This technology has the potential to revolutionize information processing with ultra-high density computing power.

Discovery may pave the way for a new class of diabetes drugs

A multidisciplinary team led by UCSD researchers has determined the structure of MitoNEET, a protein that shows promise as a target for developing innovative diabetes drugs. The discovery provides insights into how these drugs may protect cells from oxidative stress and potentially offer greater specificity and fewer side effects.

God thoughts influence your generosity: UBC study

Researchers at UBC find that priming people with 'god concepts' promotes altruism, regardless of whether participants identify as believers or not. The study also reveals that secular notions of civic responsibility promote cooperation and generosity.

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.

First study examines newly-licensed RN work attitudes and intentions

A national study of newly-licensed RNs (NLRNs) in their first 18 months of employment found that poor management, stressful work conditions, and wanting to gain experience in a different clinical area were common reasons for leaving. The study aimed to understand factors promoting retention and turnover among NLRNs.

NASA satellites eye coastal water quality

Researchers used NASA satellites to monitor water quality in Tampa Bay, finding accurate measurements of turbidity and clarity. The method can resolve questions about events leading to decreased water quality and inform resource management decisions.

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.

First orchid fossil puts showy blooms at some 80 million years old

Biologists have identified the first orchid fossil, dating back 76-84 million years, which suggests that showy blooms may have existed alongside dinosaurs. The discovery resolves a longstanding debate over orchid origins and provides direct evidence of pollination in the fossil record.

Cocaine use related to level of education achieved

A recent study found that cocaine use in the US has decreased primarily among those with higher education levels, while non-high school graduates have shown little change. This disparity is attributed to better access to health information and resources among more educated 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.

Genetics of imatinib resistance in acute lymphoblastic leukemia

Acute lymphoblastic leukemia patients with Philadelphia chromosome (Ph+) experience poor response to imatinib due to emerging drug-resistant clones. Research reveals signals from the bone marrow microenvironment can sustain viability of Ph+ ALL cells, enabling rapid resistance development.

Neurotransmitter current not flowing through ion channels

Researchers at Cornell University found that ion channels in membrane-bound vesicles do not carry charged neurotransmitters out of the cell. Instead, positive sodium ions from the outside compensate for the charge, a process known as electrodiffusion.

Elsevier partners with Tissue Viability Society

The partnership aims to widen the journal's audience, reducing reviewing time and increasing access to online features, including a comprehensive search engine and e-mail alerts. The Tissue Viability Society will continue to receive print copies as a benefit of membership.

Brown study finds link between depression and household mold

A Brown University study has found a significant link between living in damp, moldy homes and depression. The research team analyzed data from nearly 6,000 European adults and found that perceptions of control over the housing environment, combined with mold-related health problems, contribute to an elevated risk for depression.

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.