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Science News Archive June 2008


Page 11 of 21

Medicines derived from cannabis: a review of adverse events

Researchers found an 86% increase in non-serious adverse events among patients treated with cannabinoids, mainly affecting the nervous system. Cannabinoids are used to treat chronic pain and stimulate appetite, but physicians must weigh benefits against possible side effects.

Apple iPhone 17 Pro

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

Fair trade

Researchers have found a way to effectively recycle toxic chlorinated compounds using a lanthanum chloride catalyst. The new reaction enables the exchange of chlorine atoms for hydrogen atoms, producing desired products without byproducts.

Overweight does not decrease sperm production

A new study by The Endocrine Society found that overweight men are not more likely to be infertile, contradicting previous research on obese women. Greater body weight was linked to lower testosterone levels in some participants, but impaired sperm production remains the primary cause of infertility in men.

Stem cell researchers give old muscle new pep

Researchers identified two key pathways controlling adult stem cells' repair and replacement abilities. By tweaking these pathways, they revived the ability of old mice's muscle tissue to repair itself nearly as well as younger counterparts.

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.

Diabetic women get less intense treatment of heart disease than men

Women with type 2 diabetes and heart disease have poorer control of both diseases and receive less intensive medical treatment than do men. Women are also more likely to have uncontrolled high blood pressure and poor long-term control of their blood glucose levels compared to men.

UQ research finds aging is satisfying

Researchers found that older adults are just as socially satisfied as younger counterparts, contrary to conventional wisdom. The study suggests that older adults' perception of their experiences brings them more satisfaction, enabling them to find uplift in everyday life.

Current screening test for prediabetes in children misses the diagnosis too often

A new Canadian study found that the standard screening test for high blood sugar in children with risk factors misses nearly 3 times fewer cases of prediabetes than a longer test. The glucose stress test identified more cases of both prediabetes and metabolic syndrome. Early detection is crucial, as it can prevent or delay diabetes.

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.

Hunger hormone increases during stress, may have antidepressant effect

Research at UT Southwestern Medical Center suggests that ghrelin levels rise with chronic stress, decreasing symptoms of depression and anxiety, but also increasing food intake and body weight. The findings provide new insights into the complex relationship between hunger hormones and mood regulation.

Estrogen therapy helps or hurts the brain depending on reproductive status

A new animal study suggests that estrogen treatment is not toxic per se, but its effects on the brain depend on an individual's reproductive age. In rats, estrogen therapy reduced brain damage when given before menopause, but increased it after, highlighting a narrow window of time for neuroprotective benefits.

Ebb and flow of the sea drives world's big extinction events

A new study suggests that changes in ocean environments related to sea level exert a driving influence on rates of extinction, leading to the loss of up to 75-95% of species. The research links mass extinctions over time, establishing a common link and providing insight into who survives and who doesn't across these boundaries.

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.

Novel model of osteosarcoma

Researchers have developed a high-fidelity animal model of osteosarcoma by genetically modifying mice to lack the p53 and Rb tumor suppressor genes. This model closely recapitulates human osteosarcomagenesis, providing valuable insights into the disease's genetic contributions.

New molecular insight into amboebic dysentery

EhROM1 enzyme plays a crucial role in E. histolytica's immune evasion and surface protein shedding. The discovery paves the way for developing rhomboid inhibitors as a novel anti-parasitic strategy.

How Montezuma gets his revenge

Researchers found a new enzyme, EhROM1, that helps the dysentery-causing amoeba evade the immune system. The enzyme is part of an ancient group of enzymes used by malaria parasites to enter host cells.

Wealth of genomic hotspots discovered in embryonic stem cells

Researchers at the Genome Institute of Singapore have identified over 3,000 genomic hotspots critical for maintaining embryonic stem cell state. These findings may lead to the development of an inexhaustible source of clinically useful cells for regenerative medicine.

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.

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.

Montana State University grad students earn prestigious NASA fellowships

Two Montana State University graduate students, David Hoffman and Amin Nehrir, have been awarded prestigious $30,000 NASA fellowships for their research on lidar technology. They will work with top scientists at NASA's Langley Research Center, developing instruments to study the climate and atmospheric science.

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.

Serum sodium predicts mortality 10 times higher in PAH patients

Research from the University of Pennsylvania reveals that hyponatremia is associated with worse right heart function and poorer patient outcomes in PAH patients. The study found that low serum sodium levels are linked to higher mortality rates, hospitalization rates, and severity of right heart failure.

Salmonella: Trickier than we imagined

Scientists have discovered a molecular trick used by Salmonella to evade the immune system, giving it crucial time to establish itself in the host before symptoms appear. The AvrA protein helps reduce inflammation, allowing the bacteria to avoid detection and spread more easily.

Celestron NexStar 8SE Computerized Telescope

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

Microchip sets low-power record with extreme sleep mode

The Phoenix Processor achieves a groundbreaking low-power design by focusing on its extreme sleep mode, which consumes just 30 picowatts. This innovation enables smaller battery sizes and overall system reductions, opening up new sensor applications.

Lizards pull a wheelie

A team of scientists found that lizards running on two legs is due to their acceleration, which creates a turning force acting on the lizard's torso, lifting it off the ground. The researchers suggest that 'pulling a wheelie' is the most likely explanation for the lizards' bipedalism.

Fluke 87V Industrial Digital Multimeter

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

Eastern independence, Western conformity?

Researchers used a study on pen choice to investigate Japanese and American cultural differences. Contrary to previous stereotypes, the findings suggest that cultural differences are not due to inherent preferences, but rather how individuals interpret ambiguous situations.

Ancient mineral shows early Earth climate tough on continents

Scientists analyzed ancient zircons to find evidence of heavy weathering by an acidic climate 4.3 billion years ago, suggesting the destruction of early rocks and possibly habitats for life. This discovery provides new insights into the Earth's habitability, contradicting previous theories on the formation and evolution of continents.

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.

Road pollution blamed for higher allergy risk in kids

A study published in the American Journal of Respiratory and Critical Care Medicine found that traffic-related pollution increases the risk of asthma, hay fever, and eczema in children by more than 50%. Children living closer to roads are at a higher risk due to increased exposure to pollutants and aerosols.

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.

Nanoparticles aid bone growth

A new study has shown that adding nanoparticles to porous materials can lead to denser bone tissue. Researchers found that the nanoparticles increased bone ingrowth by threefold after 12 weeks compared to a biodegradable plastic scaffold alone. The study paves the way for further research into tissue engineering and bone regeneration.

UD nets NOAA funding for Mid-Atlantic ocean observing

The University of Delaware has received $400,000 from NOAA to continue development of an ocean observing system for the Mid-Atlantic region. This funding is part of the national Integrated Ocean Observing System (IOOS), which aims to coordinate ocean data collection and delivery for various applications such as storm forecasting and em...

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.

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.

Plan to conserve forests may be detrimental to other ecosystems

Scientists say conserving biodiversity must consider reducing greenhouse gas emissions from deforestation. A plan to protect forests could shift land use to low-carbon forests and harm other ecosystems important for biodiversity. Conservation efforts may need to focus on less valuable but biodiverse forests and non-forest ecosystems.