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Science News for October 25, 2004


Tests begin of flu vaccine grown in insect cell lines

Researchers are testing a new flu vaccine grown in insect cell lines, which could reduce production time by one to two months. The study aims to evaluate the effectiveness of the experimental vaccine in healthy adults aged 18-49, with potential benefits including reduced costs and increased dose strength.

SourceUniversity of Rochester Medical Center·DateOct 25, 2004

Clues to the puzzle of 'talking' root cells

Duke University researchers discovered that the Short-Root protein moves from one cell to another through an active process that recognizes signals, not just random diffusion. This finding provides a promising pathway for understanding how complex tissues develop from individual cells in both plants and animals.

SourceDuke University·JournalCurrent Biology·DateOct 25, 2004

Sandbagging cancer in the bloodstream

Researchers at Scripps Research Institute use a class of compounds known as Src kinase inhibitors to stabilize blood vessels and block tumor cell metastasis. By increasing the protective barrier strength of host blood vessels, the approach prevents cancer cells from exiting the bloodstream, making them vulnerable to immune system attack.

SourceScripps Research Institute·JournalJournal of Cell Biology·DateOct 25, 2004

Study finds nearly 60% of American adults may have elevated blood pressure

A study by University of Illinois Chicago researchers found that nearly 60% of American adults have elevated blood pressure, with prevalence increasing among older adults, those with lower education levels and obesity. Awareness and management of hypertension remain low, particularly among Mexican-Americans.

SourceUniversity of Illinois Chicago·JournalArchives of Internal Medicine·DateOct 25, 2004
Apple iPhone 17 Pro

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

Biodiversity: measuring up to the loss

A new Red List Index measures changes in extinction risk for birds worldwide, showing a steady deterioration between 1988 and 2004. The index provides a reliable baseline to track progress toward the 2010 biodiversity target, with particularly steep declines observed for Asian birds and seabirds affected by commercial long-line fisheries.

SourcePLOS·JournalPLOS Biology·DateOct 25, 2004

Farmers don't need a new superstar toxin to fight bugs

Researchers found that using plants with moderately effective genetic modifications in a buffer zone around main crops can play a major role in insect control. This approach delays the development of resistant insects by creating negative cross-resistance, effectively eliminating them from invading the main crop.

SourcePurdue University·JournalJournal of Theoretical Biology·DateOct 25, 2004

Fatal attraction

A new study suggests that reminders of death can increase support for charismatic leaders, who promise a heroic victory over evil. This is because people want to identify with special and great things, which charismatic leaders offer.

SourceAssociation for Psychological Science·JournalPsychological Science·DateOct 25, 2004
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.

Supervised treatment interruptions fail to control HIV-1 viremia

A study published in PLOS Medicine found that supervised treatment interruptions, which aim to boost natural immunity by briefly exposing patients to low levels of the virus, are ineffective in controlling HIV-1 viremia. Researchers were able to achieve transient control of the virus in some patients, but it was not sustained over time.

SourcePLOS·JournalPLOS Medicine·DateOct 25, 2004

Mouse study: Signal overload in Alzheimer brains

Researchers found that stem cells in mice with Alzheimer's disease were attracted to abnormal protein bundles called amyloid plaques. This could lead to the development of plaque-busting treatments using adult olfactory bulb stem cells.

SourceJohns Hopkins Medicine·DateOct 25, 2004
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.

LASER technology helps track changes in Mount St. Helens

Scientists used airborne LIDAR to map the dimensions of Mount St. Helens' uplift, creating detailed models to forecast volcanic hazards. The analysis revealed 5.3 million cubic meters of volume change in the area of uplift, confirming photogrammetric measurements.

SourceNASA/Goddard Space Flight Center·DateOct 25, 2004

Interventional methods may increase the use of evidence-based practice

A study found that intensive continuing education workshops can boost nurses' knowledge of and use of evidence-based practice. This can lead to better patient care and outcomes, with a potential improvement of up to 28%. The research highlights the importance of increasing nurses' knowledge of EBP.

SourceBlackwell Publishing Ltd.·JournalWorldviews on Evidence-Based Nursing·DateOct 25, 2004

More focus needed to prevent farm injuries, study says

A recent study published in Pediatrics highlights the need to prevent injuries to children on farms, which have an increased risk of serious and fatal injury compared to children in general. The authors recommend developing effective programs to address this issue, including education, regulations, and technological improvements.

SourceUniversity of Alberta·JournalPEDIATRICS·DateOct 25, 2004
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.

Cars, not crops, should be chief targets in reducing greenhouse gases

A study by Duke University researchers suggests that increasing fuel efficiency in cars and light trucks can achieve a 10% reduction in carbon dioxide emissions. In contrast, converting all croplands to no-till agriculture or retiring croplands would yield only a 4% reduction, making it a less feasible solution.

SourceDuke University·JournalProceedings of the National Academy of Sciences·DateOct 25, 2004

Major overhaul needed in end-of life care for patients with dementia

Dementia patients experience a long, slow decline with sudden changes, making optimal care challenging. The healthcare system's focus on acute illness treatment hinders end-of-life care, resulting in poorly trained providers, systems, and patients.

SourceBlackwell Publishing Ltd.·JournalJournal of General Internal Medicine·DateOct 25, 2004

Worldwide approach tackles kidney disease

A new global approach aims to combat the growing threat of kidney disease by promoting early detection and proper care. This strategy has been shown to be effective in treating kidney disease, particularly when combined with evidence-based guidelines and actual clinical practice.

SourceBlackwell Publishing Ltd.·JournalKidney International·DateOct 25, 2004

Martian meteorite measurements give information on planet evolution

Researchers at Yale University have devised a method to precisely date the timing and temperature of a meteorite impact on Mars. The (U-Th)/He dating method provides a far more accurate picture than conventional methods, shedding light on the history of Martian impacts and their effects on interplanetary material transfer.

SourceYale University·JournalGeology·DateOct 25, 2004
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.

Barriers preclude rural women from breast cancer screening

A study found that African-American and Native American women had less information and more inaccurate beliefs about breast cancer screening compared to Caucasian women. Women cited pain, embarrassment, and lack of time as major reasons for not getting screened, highlighting the need for targeted interventions.

SourceWiley·JournalCancer·DateOct 25, 2004

Sleep disorders often indicate multiple health conditions

A study found that sleep disorders can be linked to attention deficit disorder (ADD), fibromyalgia, chronic fatigue, depression, dyslexia, and illiteracy. Patients with untreated sleep disorders may continue to suffer from significant health problems.

SourceAmerican College of Chest Physicians·DateOct 25, 2004

Researchers identify brain protein that halts progression of Alzheimer's

A recent study by University of Wisconsin-Madison scientists has identified a brain protein called transthyretin that appears to protect brain cells from toxic beta-amyloid, which contributes to Alzheimer's disease. The findings suggest that boosting transthyretin levels in the brain could be a promising approach to treating the disease.

SourceNIH/National Institute of Environmental Health Sciences·DateOct 25, 2004

Growing epidemic of wet AMD ushers in new era in treatment of the disease

A growing epidemic of wet AMD is expected to double diagnoses by 2020, with new treatments in late-phase clinical trials or pending FDA approval showing promise for stabilizing the disease and preserving vision. Innovations in biotechnology offer new options for patients, including anti-VEGF, anti-angiogenic, and angiostatic treatments.

SourceAmerican Academy of Ophthalmology·DateOct 25, 2004
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.

Psychologist finds instance where 'two wrongs do make a right'

University of Oregon researchers Paul Dassonville and Jagdeep Kaur Bala found that the distinction between perception and action streams is oversimplified. Their study revealed that slight manipulations of an illusion led to a new realization, where the 'right' physical movements were made despite inaccurate visual perceptions.

SourceUniversity of Oregon·JournalPLOS Biology·DateOct 25, 2004

Gene for diabetes found

Researchers identified a gene called PTPN1 that represses insulin response and is associated with diabetes. The study found a common variant of the gene increases the risk of diabetes in Caucasians, while another form appears protective.

SourceAtrium Health Wake Forest Baptist·JournalDiabetes·DateOct 25, 2004
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.

Bug's-eye-view of urinary tract reveals E.coli infection genes

Scientists have identified 313 up-regulated and 207 down-regulated E.coli genes in mouse urine, revealing new insights into bacterial growth and virulence factors. The study provides valuable information on growing conditions and could lead to more effective treatments for urinary tract infections.

SourceMichigan Medicine - University of Michigan·JournalInfection and Immunity·DateOct 25, 2004

Tea could improve memory, study shows

New research from Newcastle University found that green and black tea inhibit the activity of certain enzymes in the brain linked to memory decline. The study suggests that drinking regular cups of tea may help improve memory and slow the development of Alzheimer's disease.

SourceNewcastle University·JournalPhytotherapy Research·DateOct 25, 2004

Study at Joslin shows ease of introducing technology to kids with diabetes

A study by Joslin Diabetes Center found that youth ages 8-18 with type 1 diabetes were more likely to monitor their blood glucose levels when playing a guessing game on a wireless-equipped personal digital assistant. The study showed an increase in diabetes knowledge and fewer episodes of hyperglycemia among participants.

SourceJoslin Diabetes Center·JournalDiabetes Technology & Therapeutics·DateOct 25, 2004

Obese patients have higher health care costs than nonobese patients

Obese individuals have significantly higher one-year health care costs compared to nonobese counterparts. Prescription drugs and hospitalizations are key drivers of these increased costs. The study found obese patients had a median total healthcare cost of $585.44, while nonobese patients averaged $333.24.

SourceJAMA Network·JournalArchives of Internal Medicine·DateOct 25, 2004
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.

Mixed signals to blame for restless legs syndrome

A new study reveals that iron deficiency in the brain's substantia nigra region may contribute to restless legs syndrome. Elevated levels of tyrosine hydroxylase (TH) were found in individuals with RLS, suggesting a link between cellular iron deficiency and dopamine regulation.

SourcePenn State·DateOct 25, 2004

Malaria vaccine trial

A new malaria vaccine trial found only 10% vaccine efficacy in Gambian adults, but the DNA/MVA vaccine group showed a significantly stronger immune response than the rabies vaccine group. The researchers are planning further trials to address this issue and develop a more effective malaria vaccine.

SourcePLOS·JournalPLOS Medicine·DateOct 25, 2004

A clear view of mycobacterial infection

Researchers have found that Mycobacterium tuberculosis recruits more macrophages to granulomas despite the host's defense mechanisms, suggesting a new strategy in mycobacterial infection. The study used zebrafish embryos to visualize cell recruitment into granulomas and identified the RD1 genetic region as crucial for virulence.

SourcePLOS·JournalPLOS Biology·DateOct 25, 2004

Retinal stem cells can regenerate after transplant

Researchers successfully transplanted human retinal stem cells into light-sensing photoreceptor cells and retinal pigment epithelial cells in animal models. The study's findings have implications for future treatment of degenerative eye diseases such as retinitis pigmentosa and macular degeneration.

SourceUniversity of Toronto·JournalProceedings of the National Academy of Sciences·DateOct 25, 2004
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.

Procter & Gamble wins top decision-making award at operations research meeting

Procter & Gamble has won the INFORMS Prize for its far-reaching integration of operations research into organizational decision making. The company's use of analytics and operations research has contributed substantially to its bottom line over the last decade, driving strategies for manufacturing capacity and distribution networks.

SourceInstitute for Operations Research and the Management Sciences·DateOct 25, 2004

Ovarian cancer rates across Europe

Research found ovarian cancer rates levelling across Europe, with declining incidence and mortality rates in northern countries, particularly among younger age groups. In contrast, southern and eastern European countries saw increasing cancer incidence and mortality rates.

SourceWiley·JournalInternational Journal of Cancer·DateOct 25, 2004
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Tip sheet for the October 26, 2004 Neurology

Researchers found that switching from brand phenytoin to generic phenytoin can lead to increased seizures in epilepsy patients. Additionally, a study on concussion history and symptom reporting found that athletes with previous concussions reported fewer symptoms immediately after the injury but more symptoms one week later. The Americ...

SourceAmerican Academy of Neurology·JournalNeurology·DateOct 25, 2004

Changing prescribing behaviour through the mail

A randomized trial found that physicians who received periodic letters recommending evidence-based drug therapy were more likely to prescribe those drugs. The study, which involved 499 physicians in British Columbia, showed a 30% increase in prescribing of recommended drugs over the preceding 3 months.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateOct 25, 2004

Implantable heart defibrillators

A prospective follow-up study found that implantable cardioverter defibrillators can significantly reduce the risk of recurring cardiac arrests after out-of-hospital incidents. Increasing access to these devices could have a substantial impact on reducing Canada's high mortality rate from sudden cardiac arrest.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateOct 25, 2004
Meta Quest 3 512GB

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

Doctors can improve colorectal cancer screening rates

A UCLA study of 22,343 adults aged 50+ in California found that 54% had a recent CRC test, with disparities seen among Latinos, women, and those without insurance or continuity of care. Improving access to screening through policies and education programs can help address these gaps.

SourceWiley·JournalCancer·DateOct 25, 2004

OHSU study: Testosterone deprivation makes men forget

A study found that word retention drops sharply after two minutes among men undergoing testosterone deprivation therapy, despite initial encoding being similar to healthy men. The lack of testosterone affects the function of the hippocampus, a curved ridge in the brain controlling learning and memory.

SourceOregon Health & Science University·DateOct 25, 2004

Nitric oxide is essential for animal development

Researchers discover nitric oxide synthase is crucial for Drosophila development, leading to the death of flies lacking the gene. The study uses genetic analysis and mutations to provide conclusive evidence that NOS function is essential for an organism's development.

SourceCell Press·JournalCurrent Biology·DateOct 25, 2004
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.

Spread of HIV could slow if repeat testing is supported

A study found that behavioral and psychosocial barriers, such as lack of concern about infection and fear of blood drawing, prevent women from getting repeat HIV testing. Offering alternative tests, like oral tests, could encourage more testing among this demographic.

SourceBlackwell Publishing Ltd.·JournalPublic Health Nursing·DateOct 25, 2004

Predicting infection risk of mosquito-borne disease

Researchers develop mathematical model to predict mosquito-borne infection risk, finding that peak biting rates occur near breeding sites and highest human density. The proportion of infectious mosquitoes peaks where older populations are found, leading to surprising predictions about risk hotspots.

SourcePLOS·JournalPLOS Biology·DateOct 25, 2004

Racial differences, poverty linked to mammography use

A new study found that racial differences and poverty significantly impact mammography use among poor, rural women over 40. Native American and African American women had lower knowledge of breast cancer screening procedures compared to white women. The study sheds light on the need for targeted interventions to improve cancer screenin...

SourceOhio State University·JournalCancer·DateOct 25, 2004

Medical informatics project targets ovarian, breast cancers

IU researchers aim to capitalize on human genome data and powerful bioinformatics approaches to develop better therapies for ovarian and breast cancer patients. The study will focus on genetic and molecular consequences of DNA modifications to improve predictive models.

SourceIndiana University·DateOct 25, 2004
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.