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Science News for November 29, 2006


UCSF study will test new vaginal microbicide for herpes and HIV

A new vaginal gel designed to prevent herpes and HIV infection is being tested in a US study. The gel, called VivaGel, has shown nearly 100% effectiveness in animal trials with few side effects. The study aims to give women more control over their sexual health and reduce the spread of these infections.

SourceUniversity of California - San Francisco·DateNov 29, 2006

University of Alberta researchers discover hummingbird secret

University of Alberta researchers identified a specific nuclei in the hummingbird's brain that detects visual motion, enabling it to stay stationary mid-air and hover. This neural specialization is two to five times larger than in any other species, relative to brain size.

SourceUniversity of Alberta·JournalJournal of Comparative Neurology·DateNov 29, 2006
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.

Go to church and breathe easier

A Temple University study found that regular church attendance slows pulmonary function decline among men and women over 70. The study suggests that religious engagement provides social contact, emotional support, and psychological well-being, potentially benefiting health.

SourceTemple University·JournalAnnals of Behavioral Medicine·DateNov 29, 2006

What cures your aches might prevent cancer

Researchers are investigating the potential of nonsteroidal anti-inflammatory drugs (NSAIDs) to prevent various types of cancer, including colon, esophageal, and lung cancers. The studies focus on the preventive effects of sulindac, atorvastatin, and RaftiloseSynergy1 on cancer development.

SourceMayo Clinic·DateNov 29, 2006

Protein shown to rally biological clock

A study published in the Proceedings of the National Academy of Sciences reveals that VIP synchronizes biological clocks, clarifying its role alongside GABA. Without VIP, cells lose synchrony, indicating its coordinator function.

SourceWashington University in St. Louis·JournalProceedings of the National Academy of Sciences·DateNov 29, 2006

Indoor emissions from household coal combustion carcinogenic

A report by International Agency for Research on Cancer concludes that household coal combustion and biomass fuel emissions are carcinogenic to humans. The study emphasizes the need for adequate ventilation and alternative heating methods to reduce lung cancer burden globally.

SourceThe Lancet_DELETED·JournalThe Lancet Oncology·DateNov 29, 2006
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.

International HIV/AIDS trial finds risks increase on episodic antiretroviral therapy

A large HIV/AIDS treatment trial found that interrupting antiretroviral therapy more than doubles the risk of AIDS or death from any cause. The study used two levels of CD4+ T cells to guide therapy suspension and restarting, but participants receiving episodic therapy had a significantly increased risk of disease progression.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalNew England Journal of Medicine·DateNov 29, 2006

First international gene screen for typical ALS is on track

Researchers have compiled genetic information on over 1,000 patients and controls in the largest-scale search for genes underlying sporadic ALS. The study aims to clarify the role of genes or lack thereof in the disease, with potential implications for therapies and a cure.

SourceJohns Hopkins Medicine·DateNov 29, 2006

Measuring pandemic preparedness

A federal plan to vaccinate healthcare workers against smallpox had a low compliance rate and high variability among states. Researchers found that some states ranked poorly due to lack of support and ambivalent messages from authorities.

SourceTemple University·JournalEpidemiology and Infection·DateNov 29, 2006
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.

Drug labels are prescriptions for mistakes

A study found that patients with lower literacy and those taking multiple medications had difficulty understanding prescription label instructions. The researchers recommend redesigning label text and format, as well as a system approach to verify patient understanding, to improve quality care.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateNov 29, 2006

Cell death following blood 'reflow' injury tracked to natural toxin

A team of researchers at Johns Hopkins Medicine has discovered a natural toxin, PAR-polymer, responsible for most tissue and organ damage after a period of blood oxygen loss followed by restored blood flow. The toxin triggers cell death through a process called parthanatos, which can be prevented with potential new treatments.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateNov 29, 2006
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.

New journal focuses on lifestyle health

The American Journal of Lifestyle Medicine aims to guide primary care providers in helping patients lead healthier lives through research on daily habits and actions.

SourceSAGE·JournalAmerican Journal of Lifestyle Medicine·DateNov 29, 2006

Breast cancer treatment procedure gives women more options

A new minimally invasive approach to partial breast irradiation offers an additional treatment option for women with early-stage breast cancer. The procedure uses ultrasound to guide balloon catheter placement, reducing the risk of damaging healthy tissue and allowing for a shorter treatment regime.

SourceRadiological Society of North America·DateNov 29, 2006

Hypnosis helps women cope with breast biopsy

A new study finds that hypnosis can significantly reduce pain and anxiety during breast biopsy procedures, while also shortening procedure time and cost. Women who received self-hypnotic relaxation coaching reported improved coping tools for future waits and work-ups.

SourceRadiological Society of North America·DateNov 29, 2006

Fortified milk reduces morbidity in preschool children

Consumption of fortified milk significantly reduces diarrhea and acute lower respiratory illness among preschool children in developing countries. The study found that fortified milk reduced the number of days with severe illness by 15 percent and incidence of pneumonia by 26 percent.

SourceJohns Hopkins Bloomberg School of Public Health·DateNov 29, 2006

Save the whales? Sure, but how many?

The Wildlife Conservation Society proposes a simpler, four-tiered system to measure conservation success for wildlife populations. The system aims to move beyond demographic sustainability and focus on ecological functionality, where species serve their role in ecosystems.

SourceWildlife Conservation Society·JournalBioScience·DateNov 29, 2006
Fluke 87V Industrial Digital Multimeter

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

Mystery of ancient astronomical calculator unveiled

Researchers have cracked the workings of the Antikythera Mechanism, a 2,000-year-old computer that tracked astronomical movements with remarkable precision. The ancient Greek device predicted eclipses and recreated the moon's irregular orbit, challenging previous assumptions about their technological capabilities.

SourceCardiff University·JournalNature·DateNov 29, 2006

Got inexpensive contrast agent? Milk plays new role in imaging

Researchers found milk to be an effective alternative to the costly oral contrast agent VoLumen in gastrointestinal imaging exams. Milk was shown to produce similar bowel distension and enhancement without causing more abdominal discomfort than VoLumen, making it a viable option for patients.

SourceRadiological Society of North America·DateNov 29, 2006

Protective garment

Researchers have developed a breathable protective garment material that blocks toxic vapors while allowing water vapor to pass through, maintaining personal comfort and safety. The material is lightweight and selectively rejects chemical agents, making it an ideal solution for military personnel and emergency services.

SourceWiley·JournalAdvanced Materials·DateNov 29, 2006
Apple iPhone 17 Pro

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

Common cancer treatments toxic to healthy brain cells

Researchers at the University of Rochester Medical Center found that common chemotherapy drugs can be toxic to healthy brain cells, causing long-term damage and cognitive impairment. The study suggests that these drugs can disrupt neurogenesis and destroy oligodendrocytes, leading to significant neurological consequences.

SourceUniversity of Rochester Medical Center·JournalJournal of Biology·DateNov 29, 2006

Many IRB members have financial relationships with companies

A survey of IRB members found that over one-third have financial relationships with commercial firms, which could compromise the review process. The study highlights the need for clearer policies and more oversight to address these conflicts of interest.

SourceMassachusetts General Hospital·JournalNew England Journal of Medicine·DateNov 29, 2006

$1.3 million grant to create teacher-training, language program

The University of Alaska Fairbanks has received a $1.3 million federal grant to create a graduate-level training program in second-language acquisition, focusing on the Yupik language. The program aims to provide K-12 teachers with tools to increase fluency and address second-language issues in the classroom.

SourceUniversity of Alaska Fairbanks·DateNov 29, 2006
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.

Evidence from Hawaiian volcanoes shows that Earth recycles its crust

Researchers at Rutgers University have found chemical evidence of recycled rocks in Hawaiian volcanoes, suggesting the Earth's crust is being recycled on a grand scale. This discovery extends beyond calcium and includes other elements such as sulfur, hafnium, and lead, which provide clues about the origin and behavior of magma.

SourceRutgers University·JournalNature·DateNov 29, 2006

Second opinion yields treatment changes for half of patients

A study from Michigan Medicine found that over half of breast cancer patients who sought a second opinion received a change in their recommended treatment plan. Changes were often made based on reinterpreted imaging results or differing diagnoses, leading to new treatment recommendations.

SourceMichigan Medicine - University of Michigan·JournalCancer·DateNov 29, 2006

Parental genes do what's best for baby

A new genetic theory suggests that certain offspring characteristics can only be explained by genetic cooperation between maternal and paternal genes. This challenges the prevailing view of a parental power struggle, instead proposing that positive interactions between mothers and their offspring drive imprinting patterns.

SourceUniversity of Manchester·JournalPLOS Biology·DateNov 29, 2006
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.

New therapeutic hope for degenerative disc disease

Researchers found that embryonic cells from a dog's notochord can regenerate disc cartilage, providing new therapeutic options for degenerative disc disease. The study suggests that CTGF-secreting notochord cells protect non-chondrodystrophic dogs against the condition.

SourceWiley·JournalArthritis & Rheumatism·DateNov 29, 2006

High dopamine transporter levels not correlated with ADHD

Researchers found lower levels of dopamine transporters in certain brain regions of ADHD patients compared to controls. ADHD patients experienced higher levels of inattention despite similar dopamine transporter levels, indicating a complex relationship between dopamine and attention.

SourceDOE/Brookhaven National Laboratory·JournalNeuroImage·DateNov 29, 2006