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Science News Archive 2004


Page 120 of 135

Common epilepsy treatment to be used for bulimia nervosa

Researchers at the University of Minnesota are testing a new treatment for bulimia nervosa, VNS Therapy, which targets the vagus nerve to reduce urges to binge eat and vomit. The study builds on previous research that found voluntary binge eating stimulates the vagus nerve, leading to involuntary behaviors.

Can we keep the cap on transgene escape?

Researchers Haygood, Ives, and Andow analyzed the probability of transgene escape within a given period, finding that it can happen much sooner than anticipated. Even with small leakage parameters, the risk of escape increases within ten generations.

Smoking in movies returns to 1950s levels

A recent study found that cigarette smoking in top-grossing films has increased to 1950s levels, with an average of 10.7 smoking incidents per hour of screen time. The rise in screen smoking is concerning for youth smoking habits, as previous studies have shown a link between movie smoking and youth tobacco use.

Insights gained from molecular modeling may lead to better insecticides

Researchers used molecular modeling to study the detoxifying proteins of black swallowtail butterflies and corn earworms. The earworm's protein is more flexible, allowing it to bind to and detoxify six different plant defense chemicals and three common insecticides, making it a master of adapting to new pesticides and host plants.

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.

MCOs shortchange minority Medicaid patients

A recent study by Penn State researchers found that Minority Medicaid patients face barriers to quality care due to language and cultural factors. The study analyzed responses from 49,327 adults in 14 states, revealing significant disparities in care reports among linguistic minorities.

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.

UNC study may improve gene therapy safety

Researchers found that viruses used for gene delivery can influence gene expression, with AAV affecting genes minimally and adenovirus triggering broader responses. The study provides a systematic explanation for the relative safety profiles of two commonly used gene therapy vector classes.

Fuel-cell microbes' double duty: treat water, make energy

A single-chambered microbial fuel cell prototype has been developed to efficiently treat wastewater and generate electricity. The design reduces energy demands and creates a continuous flow-through system, making it a promising approach for affordable wastewater treatment.

University of Delaware lays keel for new research vessel

The University of Delaware has launched a new, 146-foot coastal research vessel to replace its aging ship, Cape Henlopen. The vessel will feature state-of-the-art modular design and clean operation, meeting international underwater noise standards.

Study compares clinical diagnoses and autopsy diagnoses in ICU deaths

A study of 1,492 ICU patients found that major discrepancies between clinical and autopsy diagnoses exist, with up to 31.7% of cases identified as having major diagnostic errors. Autopsies also revealed missed diagnoses, including cancers, strokes, and heart attacks, which could have changed management and potentially saved lives.

Apple iPhone 17 Pro

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

Despite confinement, crop genes can spread fast to wild

Researchers used mathematical models to investigate transgene escape from confined crops, finding a high probability that leakage can occur sooner than expected. The study suggests that even with effective containment strategies, genes can still spread to wild populations within a relatively short time frame.

Women who were sexually abused as children more likely to smoke

A study published in Addictive Behaviors found that women who were sexually abused as children were 3.8 times more likely to be current smokers, with twice the likelihood of ever smoking cigarettes and starting by age 14. The connection between childhood sexual abuse and smoking may help inform new approaches to prevent or quit smoking.

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.

Tip sheet for the February 24, 2004 Neurology

Researchers found that brain atrophy was detected on MRI more consistently than decline on cognitive tests or rating scales in patients with PCNSL. The study also examined the risk of stroke associated with triptan use in migraines, finding no increased risk.

Computer method identifies potentially active enzymes

A new computer method called FamClash has been developed to predict the activity of hybrid enzymes, which are created by combining similar enzymes from different organisms. The approach identifies incompatible residue pairs that can lead to reduced enzyme activity, and provides valuable insights for protein engineering interventions.

Number of children linked to obesity for mom and dad

A recent study from Duke University Medical Center reveals that having children increases the risk of obesity for both mothers and fathers. The research, published in the Journal of Women's Health, analyzed data from over 9,000 Americans and found that each additional child raises the risk of obesity by 7% for women and 4% for men.

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.

Home on the RangeView

A new Web site allows users to compare greenness from one year to the next, between years, against a 14-year average and at two-week intervals. This information is invaluable for making long-term land management decisions, enabling natural resource managers to monitor vegetation dynamics through time and across landscapes.

Purdue scientists: Genetically modified fish could damage ecology

Purdue scientists Rick Howard and colleagues discovered that genetically modified fish have a reproductive advantage, but their offspring are less likely to survive. This paradox could lead to a population dwindling in size and potentially disappearing entirely if not managed carefully.

Antibiotics may not be necessary when treating children with a simple skin abscess

A study by UT Southwestern Medical Center researchers found that draining a skin or soft-tissue abscess and packing the wound with gauze is an effective therapy for simple skin abscesses in children, potentially reducing the need for antibiotics. The treatment was shown to be effective even when treating methicillin-resistant Staphyloc...

New discovery may lead to therapy for incurable blood cancer

A recent finding reveals a frequent abnormal cellular event occurring in about half of all myeloma cases, identifying c-maf as an attractive target for therapeutic intervention. Inhibition of c-maf function blocks tumor formation in mice, suggesting its potential as a novel target for future therapies.

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.

USC researchers produce a hairier mouse

Researchers at USC have created a transgenic mouse with an overexpressed noggin gene, resulting in increased hair follicles, thicker fur, and additional whiskers. The study also reveals unusual changes to the mice's eyes, feet, and genitalia, challenging the distinction between normal and abnormal variations.

Jefferson scientists unlocking secrets of cholesterol transport in body

Researchers at Thomas Jefferson University have discovered a complex of two proteins in the intestine that plays a crucial role in cholesterol transport. Treating mice with ezetimibe disrupts this complex, leading to impaired cholesterol absorption, suggesting new therapeutic possibilities.

Celestron NexStar 8SE Computerized Telescope

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

Scientists watch 'movie' of neutron star explosion in real-time

Researchers watched the inner regions of an accretion disk, just miles from a neutron star's surface, change its structure in real-time. The observation provides new insight into the flow of a neutron star's accretion disk and could help study black holes and distant quasars.

U of M researchers a step further in Type 1 diabetes treatment

Researchers have successfully treated individuals with Type 1 diabetes using a single infusion of islet cells, with recipients maintaining insulin independence for over one to three years. The new treatment approach uses optimized recipient immunosuppression and a novel anti-CD3 monoclonal antibody.

Study moves in on why astronauts suffer bone loss

Researchers have found that the lack of response occurs because IGF-I does not activate its receptor molecule on the surface of the cells, triggering a signaling feedback loop. Integrins, which regulate growth factors in other cells, are also impaired due to skeletal unloading.

Food tastes stronger when you're hungry

Research suggests that hunger increases sensitivity to sugar and salt, as the body tries to consume food. However, this effect does not apply to bitter tastes, which may be more related to detecting toxins.

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.

OHSU researchers discover way to grow silicon nanowires

Researchers at OGI School of Science & Technology have successfully grown silicon nanowires in a precise location and direction using electrical fields. This breakthrough technology has the potential to revolutionize the microelectronic industry by enabling the fabrication of high-performance electronic devices.

Study predicts conditions for sustainable lion trophy hunting

Researchers developed a computer model to predict the effects of different hunting regimes on lion populations over 50 years. The study suggests that males aged 5 or older can be sustainably hunted without limits, while younger lions are prohibited to ensure population stability.

Preventative bed rest during pregnancy may be more harmful than helpful

A $1.7 million NIH-funded study found that bed rest in high-risk pregnancies is associated with weight loss, increased risk of fetal growth restriction, backache, joint soreness, headaches, muscle loss, and depression. The study suggests that prescribed antepartum bed rest may be more harmful than helpful.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Lehigh researchers hone radiation source for THz devices

Terahertz (THz) frequencies have potential applications in medicine, remote sensing, imaging, and satellite communications. Lehigh researcher Yujie J. Ding has developed a compact THz radiation source that can generate coherent waves with high output powers, enabling new diagnostic tools and monitoring technologies.

Protein inhibits cell growth, may contribute to breast cancer

Researchers have discovered that protein cdk6 inhibits breast cancer cell growth, suggesting a promising avenue for diagnosis and treatment. Cdk6 levels were found to be significantly lower in breast cancer cells compared to normal cells, with increased expression of cdk6 linked to suppressed cell growth.

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.

Researchers receive $9.2 million for heart failure studies

Researchers are studying how the heart changes its energy source from fat to glucose in end-stage heart failure, which may improve pumping function and treatment outcomes. The new program aims to bridge the gap between basic genetic data and clinical trials for heart failure patients.

Secondary complications and restoration of function in SCI

Studies investigate relationships between energy expenditure, lean muscle mass, and upper-body strength in persons with SCI. Researchers also explore potential treatments for bowel movement issues, respiratory problems, and pain management.

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.

Predators and human health

Research by Ostfeld and Holt found that mobile predators like foxes, coyotes, and falcons effectively suppress rodent numbers, reducing disease transmission to humans. In contrast, specialized predators like weasels cause periodic population booms, promoting the spread of rodent-borne pathogens.

System can predict disease spread

Researchers at Oregon State University and EPA developed a new approach to predict disease spread based on climate change and ecological changes. The system uses loop analysis and vectorial capacity formula to estimate the growth rate of diseases, providing valuable insights for public health officials.

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.

Research adds health benefit to tomatoes

Domestic tomato varieties in the US are now producing anthocyanin-containing fruit, offering a boost to nutritional value. The discovery opens doors for developing more nutrient-rich tomato varieties, benefiting both home gardeners and the food industry.

Rice University's Connexions project pioneers open-source academic publishing

The Connexions Project is a revolutionary approach to scholarly content, offering a single platform where educators can post, use, and modify knowledge freely. With over 1,600 educational modules available, Connexions enables instructors to supplement or replace textbooks with interactive simulations and multimedia.

NASA's SORCE satellite celebrates one year of operations

The SORCE satellite has tracked exceptionally high levels of solar activity, including the third most powerful solar flare ever observed in X-rays. This comprehensive dataset will help scientists better understand the mechanisms of solar spectral-irradiance variability and their possible climatic impacts.

Brain scans show how placebo eases pain

Researchers used fMRI to map changes in brain activity after volunteers received a placebo, showing the prefrontal cortex is activated in response to pain relief. The study provides new insights into the brain's pain pathways and may lead to new therapies for chronic or acute pain.

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.

Vaccine shows promise for kidney cancer

A new vaccine has shown significant improvement in 5-year progression-free survival rates for patients with renal cancer, with a 77% rate in the vaccinated group compared to 68% in the control group. The well-tolerated treatment was associated with only 12 adverse events.

Celiac disease is a risk factor for schizophrenia

Researchers found a moderate link between celiac disease and schizophrenia, with individuals having celiac disease three times more likely to develop the condition. A gluten-free diet may be beneficial for those genetically prone to celiac disease but undiagnosed, according to lead author Dr. William W. Eaton.