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Science News Archive 2005


Page 112 of 165

Exercise in cold water may increase appetite, UF study finds

Researchers found that exercising in cold water led to a 44% higher caloric intake compared to warm water or resting periods. The study suggests that environmental conditions during exercise may influence post-exercise appetite, and individuals should consider the kinds of foods they eat after exercise.

Different consultants mean different lengths of stay in hospitals

A study analyzing hospital discharge data found that consultants' practices differ significantly in length of stay, re-admission rates, and resource usage. General internal medicine consultants had the shortest median stay duration, while respiratory consultants had the highest readmission rate.

Newly discovered genetic disease sheds light on body's water balance

Researchers discovered a new genetic disease, Nephrogenic Syndrome of Inappropriate Antidiuresis (NSIAD), in two infants who were retaining excess fluids and diluting sodium levels in their blood. The condition is caused by mutations in the AVPR2 gene that affects vasopressin binding, leading to inappropriate antidiuresis.

Apple iPhone 17 Pro

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

Genome of social amoeba shows its importance as research model

The sequencing of Dictyostelium's genome has clarified its relationship to humans, revealing nearly twice as many protein coding genes as fungi. This increase in gene function information makes it a more effective model for discovering targets for drugs against human diseases.

Monitoring program finds serious, unreported adverse drug reactions

The Research on Adverse Drug Events and Reports (RADAR) Project has identified serious adverse drug reactions with 14 commonly prescribed drugs and cardiac stents, affecting almost 1,700 patients. RADAR reviews have been published in leading medical journals and have helped save hundreds to thousands of patient lives.

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.

Rock hounds sleuth rise of Earth's atmosphere

Researchers studied isotope anomalies in rocks, ice cores, and atmospheric samples to understand the rise of oxygen in the atmosphere. They found that ultraviolet light from the Sun drove atmospheric evolution, leading to the formation of ozone that shields life on Earth.

Low-dose MDCT 'better option' than x-rays for imaging children's sinuses

Researchers found that low-dose MDCT can provide similar diagnostic image quality to standard-dose CT scans while reducing radiation doses by up to 10 times. The study suggests low-dose MDCT is a better option for evaluating sinus disease in children due to its improved accuracy and reduced need for sedation.

Other highlights in the May 4 JNCI

A new study found that increasing Pap screening adherence and improving its accuracy could reduce the incidence of invasive cervical cancer among women with access to screening. The study also identified factors associated with screening failure, including lack of Pap testing and unrelated outpatient visits.

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.

Rutgers' Tabasco Sauce connection

Researchers at Rutgers are studying the effects of plant extracts on metabolic syndrome, a condition characterized by obesity, hypertension, and high insulin levels. The center aims to identify chemical compounds with therapeutic potential and develop new treatments for this growing public health concern.

Scientists find microRNAs regulate plant development

MicroRNAs play a crucial role in regulating plant development by controlling gene expression related to the auxin response pathway. Studies show that microRNA-mediated regulation of genes like ARF17 and NAC1 is essential for normal plant growth, affecting root and shoot development.

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.

Babies show ripple effects of mothers stress from 9/11 trauma

Infants of mothers with posttraumatic stress syndrome disorder (PTSD) symptoms after 9/11 have significantly lower cortisol levels compared to those born to mothers without the condition. This effect is observed both in utero and after birth, suggesting a potential biological risk factor for PTSD.

Stents that release medication appear more effective than traditional stents

Researchers found that sirolimus-eluting stents significantly reduced the need for target-vessel revascularization (TVR) and cumulative incidence of death, reinfarction, stroke, or TVR compared to bare-metal stents. The STRATEGY trial showed a reduction in heart attack risk with tirofiban plus sirolimus-eluting stenting.

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.

OneWorld Health awarded Sapling Foundation grant

The Sapling Foundation grant will support OneWorld Health's efforts to develop new medicines for infectious diseases affecting the developing world. The Institute develops affordable treatments for diseases like visceral leishmaniasis, malaria, and diarrhea, with a focus on pre-clinical studies and clinical trials.

Diabetes and pizza: Slow and steady insulin delivery wins the race

A new study found that spacing out insulin given by an insulin pump in two doses, one over eight hours, can keep glucose levels more favorable than a single dose or double dose taken over shorter periods. This method showed improved blood glucose control after a pizza meal without causing hypoglycemic events.

Museum rescues 'endangered' recordings

The Field Museum is preserving the audio descriptions of its prized Pacific collection, recorded on sonobands in the 1950s and 60s. The project involves converting the recordings to a digital format, which has proven challenging due to the deterioration of the sonoband medium over time.

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.

Study examines influence of celebrity endorsements of cancer screening

A telephone survey found that celebrity endorsements increased awareness and likelihood of certain cancer screenings, including mammography, PSA testing, and sigmoidoscopy. The study highlights the complex decision-making process around cancer screening, suggesting a need for celebrities to inform rather than persuade the public.

New tool reveals secrets of migrating cells

Researchers have developed a new tool that allows them to visualize cells in real-time, revealing details about their movement and behavior. The technique, called two-photon laser-scanning microscopy, has provided insights into the goal-oriented migration of activated T cells and the random wanderings of immature T cells.

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.

All low-fat diets are not equal, Stanford study shows

A Stanford study compared two low-fat diets: one focused on avoiding saturated fat and cholesterol, the other including plenty of plant-based foods. The plant-based diet resulted in a significant 9.4% decrease in LDL cholesterol, while the conventional diet lowered it by 4.6%.

Liver metabolism goes to pot

Researchers found that liver cells express CB1 receptors, which activate a signaling pathway increasing fatty acid synthesis. This activation is similar to brain and may be a target for metabolic regulation and appetite control.

Gamma rays from thunderstorms?

Scientists detected gamma rays in thunderstorms, contradicting a long-held theory. The study found lightning strokes preceding the gamma rays, suggesting a negative cause-and-effect relationship.

FGF-21 finds itself as a new therapy for type 2 diabetes

Researchers discovered that FGF-21 regulates glucose uptake in human fat cells, significantly reducing plasma glucose levels and triglycerides. FGF-21 also protected animals from diet-induced obesity, providing evidence for its therapeutic potential in treating type 2 diabetes.

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.

Study is first to implicate dietary fat in 'fatty liver'

A recent study led by Elizabeth Parks from the University of Minnesota has made a groundbreaking discovery about the origin of fatty liver disease. The research found that excess dietary fat can lead to liver toxicity, causing it to malfunction in its role as the body's central storage and distribution center for fat.

Burden of cardiovascular disease will shift to the developing world

The study finds that major cardiovascular risk factors, such as obesity and high blood pressure, are increasing in low-income and middle-income countries, particularly in cities. As a result, these countries will face high levels of cardiovascular disease alongside infectious diseases.

African-American connection to attract Earth sciences students

AESEDA aims to entice minority students to enroll in Penn State's College of Earth and Mineral Sciences, with a focus on Africa connection. The program involves partnerships with HBCUs and Nigerian universities to develop natural resources and energy management in Africa.

Return to normalcy

Researchers at Cold Spring Harbor Laboratory investigate the concept of return to normalcy in genetic systems. They uncover new insights into how cells can re-establish normal gene expression after perturbations.

Celestron NexStar 8SE Computerized Telescope

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

VCU engineers develop new polymer

Researchers at VCU have created a unique polymer coating that switches from being hydrophilic to hydrophobic when exposed to water, offering potential applications in medical testing and fluid control. The coating's reversible properties make it suitable for various industries.

Simple questions may determine children's exposure to smoke

A new screening tool has been developed to assess children's exposure to secondhand smoke by asking caregivers about smoking factors in the home. The tool, which correlates with hair cotinine levels, can help pediatricians identify high-risk children and facilitate assessment in busy practices.

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.

Study reveals new data on how lyme disease is spread

A new study published in Annals of Internal Medicine found that blood stream invasion occurs in nearly half of untreated adults with erythema migrans, a tell-tale bull's eye rash. Younger patients and those with prior Lyme disease experience lower rates of invasion.

JCI table of contents June 1, 2005

Researchers discovered FGF-21 regulates glucose uptake in human fat cells, decreasing plasma glucose levels and triglycerides in diabetic animals. Additionally, FGF-21 protected animals from diet-induced obesity, defining a functional role for FGF-21 in vivo.

Major advance made on DNA structure

Researchers at Oregon State University have used X-ray crystallography to determine the three-dimensional structures of nearly all possible sequences of a macromolecule, creating a map of DNA structure. This breakthrough should fundamentally improve our understanding of genetic function and biological processes.

Study shows how retinoic acid enters a cell's nucleus

Scientists have found that retinoic acid, a cancer-fighting vitamin A derivative, enters a cell's nucleus via protein CRABP-II by exposing positive charges on its amino acids. This discovery could lead to new treatments for various diseases, including leukemia and breast cancer.

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.

Fundamental genes regulate human blood stem cells

A study published in Developmental Cell identifies two genes, HES-1 and HLF, that regulate human blood stem cell behavior. These genes enhance cell-cycle progression and inhibit premature cell death in hematopoietic stem cells.

Grandparent at home buffers single-parenthood

Children living with single mothers and grandparents in the household show similar test scores to those in married-couple families. Research highlights the importance of grandparents' role in supporting children during adolescence. Grandparents can serve as a source of strength for youth navigating this critical period.

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.

Can our genes tell the story of our divergence?

A study comparing human and chimpanzee genomes identified genes involved in sensory perception and spermatogenesis, as well as a strong link between immune defense and positive selection. The authors suggest that an evolutionary arms race may have driven the development of tumor-suppressor and apoptosis genes.

3 questions may provide good clues to smoke exposure

A three-question model asks about parental smoking habits and home environment to gauge ETS exposure risk. The study used hair samples to measure cotinine levels, finding that parental reports often underestimated child exposure.

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.