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Science News Archive 2008


Page 132 of 240

Exercise reduces hunger in lean women but not obese women

A recent study published by the Endocrine Society found that exercise does not suppress appetite in obese women, unlike lean women. Obese women showed no significant reduction in leptin levels during intense exercise, which is essential for appetite suppression and weight loss.

Scientists find potential protein biomarkers for growth hormone

Researchers have pinpointed four proteins - apoA1, transthyretin, clusterin and albumin - that react strongly to bovine growth hormone, potentially serving as biomarkers for growth hormone activity in humans. The discovery could offer a wider testing window for detecting recombinant human growth hormone misuse.

'Women in Science' fellowship to fund postdoc's study of deep-sea methane

L'Oreal USA Fellowship recipient Laura Lapham is studying geochemical research in the Gulf of Mexico on gas hydrates and their potential impact on climate change. She aims to collect samples using a manned submersible vehicle, which could provide insights into large amounts of methane loss from ocean sediments.

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.

Infant play drives chimpanzee respiratory disease cycles

A new study on chimpanzees reveals that infant mortality rates cycle in phase with social play amongst infants, driven by the ontogeny of playfulness. This three-year cycle is self-organized and emerges naturally from the demography, developmental ontogeny, and social behavior of chimpanzees.

UNH researchers test sediment-scrubbing technology in NH river

Researchers from UNH's Contaminated Sediments Center are testing black geotextile mats designed to cap and stabilize pollution in place. The mats consist of reactive materials that bind and stabilize different pollutants, offering an alternative approach to remediating contaminated sediment.

Celestron NexStar 8SE Computerized Telescope

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

Low testosterone appears to increase long-term risk of death

A new study from Germany suggests that men with low testosterone levels are at a higher risk of dying from all causes over time. The study found that men with low testosterone had more than 2.5 times greater risk of dying in the next 10 years compared to those with normal testosterone levels, regardless of age or lifestyle factors.

New weight loss diet recommends high-carb and protein big breakfast

A new study suggests that a diet with a big breakfast of carbs and protein can lead to more successful weight loss, as seen in the 8-month study where participants lost an average of 16.5 pounds. The high-carb and protein intake controlled appetite and cravings for sweets and starches.

Invest in a future without dementia

The Australian Dementia Research report recommends increasing funding for dementia research three-fold to $36 million to keep pace with rising treatment and care costs. By 2030, dementia's projected healthcare cost is expected to reach $8.2 billion, with the number of people with dementia set to double to over 460,000.

Latrines trounce toilets

A study by Michigan Technological University researchers found that installing proper latrines can significantly improve sanitation conditions in Africa. The findings also highlight the importance of handwashing habits in preventing diseases such as dysentery.

Apple iPhone 17 Pro

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

Falls, depression and antidepressants in later life

A study found that depression and antidepressants significantly increase the risk of falls among older people. SSRIs were associated with a 66% higher risk of falls. Effective prevention programs include home assessments and modifications to reduce hazards. Family members must be involved in fall prevention strategies.

Depression and diabetes: fellow travelers, researchers say

A new study published in JAMA found that patients with depression are more likely to develop type-2 diabetes, and those with type-2 diabetes are also at a higher risk for developing depression. The study used data from the Multi-Ethnic Study of Atherosclerosis (MESA) to investigate this connection.

MIT researchers see alternative to common colorectal cancer drug

Researchers at MIT discovered a new compound, cDPCP, that targets colorectal cells more effectively than oxaliplatin, potentially sparing other body tissues from damage. The study found that cDPCP requires the assistance of organic cation transporters to enter cells.

High blood pressure: Only 1 number matters for patients over 50

Experts propose measuring only systolic blood pressure in patients aged 50+, as it's a better predictor of risk and simplifies communication with patients. This shift could lead to improved treatment outcomes, reduced disease rates, and increased focus on systolic hypertension.

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.

US could face shortage of 44,000 primary care physicians by 2025

A new study predicts a shortage of primary care physicians in the US, with an expected increase of 29% in doctor visits and less than 5% in supply by 2025. The researchers call for incentives to increase numbers of primary care practitioners and development of new models of primary care.

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.

Socio-demographic factors influence costs of back pain

The study found that patients aged 50 had the highest costs, while those claiming benefits also experienced increased costs due to unemployment, low education, and living alone. Effective prevention programs can lower expenses in both private and public sectors.

Hypertension treatment effective in reversing vascular damage

A new study found that olmesartan medoxomil effectively reverses the narrowing of arteries in patients with high blood pressure. The one-year study showed significant improvements in vascular function and structure compared to a beta-blocker, providing hope for treating this common condition.

People with lower incomes, lower education levels have higher death rates

Research by Mayo Clinic found that people with lower incomes and education levels are more likely to die after a heart attack. The study analyzed data from 705 patients treated for heart attack between 2002 and 2006, showing survival rates were lowest for those with the lowest income and education.

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.

Wavelets crunch through doctors' day long struggle to diagnose brain tumors

Researchers at the University of Warwick have developed an automated technique using wavelets to analyze brain tumors, providing a preliminary diagnosis in seconds. The method improves upon existing methods by analyzing hundreds of slides with millions of pixels, increasing accuracy and reducing analysis time.

Effective treatment for sickle cell underused by doctors

A literature review by Johns Hopkins researchers found that hydroxyurea significantly reduces the frequency of intense sickle cell crises and hospital admissions by 68-84% and 18-32%, respectively. However, potential risks include impaired sperm development and unclear effects on leukemia risk.

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.

Identifying Canadian freshwater fish through DNA barcodes

Researchers used DNA barcoding to identify 190 species of Canadian freshwater fish, representing a significant advance for conservation practices. The approach was successful in 93% of cases, offering promise for species-level identification and management.

Did the gene for ADHD help our nomadic ancestors?

A study by researchers from UWM found that a specific version of the DRD4 gene appears to have different effects depending on one's environment. In nomadic Ariaal men with the 7R allele variant, this gene is linked to better health and nourishment.

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.

Gene mutation improves leukemia drug's effect

Researchers at Ohio State University found that acute myeloid leukemia (AML) patients with mutations in the RAS gene are more likely to be cured when treated with high doses of cytarabine. Testing for RAS mutations may help doctors identify which AML patients should receive this therapy.

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.

How female chimps call off the competition

Chimpanzee females employ copulation calls strategically to minimize social competition, particularly with other females. This behavioral adaptation allows them to secure the protective support of high-ranking males, thereby reducing risks associated with female-female competition.

Treated diabetes associated with increased risk for depression

A study published in JAMA found that treated type 2 diabetes is associated with a higher risk of developing depression, while untreated diabetes has no significant link. The study suggests that psychological stress from managing diabetes may contribute to elevated depressive symptoms.

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.

Testosterone replacement benefits older men with low testosterone

Restoring normal testosterone levels in hypogonadal men leads to major improvements in metabolic syndrome features. Older men (63+) benefit equally as younger men from testosterone treatment, according to studies presented at The Endocrine Society's 90th Annual Meeting.

Study shows 'being fat in today's world' invites social discrimination

A new study from Australia found that obese individuals feel a culture of blame and are often disrespected by medical practitioners. The study suggests that health care providers should do a more thorough assessment of the needs of individual obese patients, addressing social and psychological issues.

Meta Quest 3 512GB

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

Hebrew University research on octopuses sheds light on memory

Octopus brains utilize activity-dependent long-term synaptic potentiation (LTP) to store and recall memories, with findings suggesting a segregation of short and long-term memory systems. This process is comparable to that discovered in vertebrate brains, yet operates differently due to the octopus's unique brain anatomy.

Blood pressure levels in childhood track into adulthood

A study by Johns Hopkins Bloomberg School of Public Health researchers found a consistent relationship between childhood blood pressure levels and adult blood pressure. Children with elevated blood pressure often grow up to become adults with elevated blood pressure.

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.

Age at puberty linked to mother's prenatal diet

A study published by The Endocrine Society found that a mother's prenatal diet high in fat can lead to an early onset of puberty in her child, increasing the risk of adulthood obesity. The research also showed alterations in sex hormones and higher body fat levels in adult offspring.

Computer predicts anti-cancer molecules

Researchers developed a computer-based method called CoMet to analyze cellular activity and predict anti-tumor activity of metabolites. The tool identified nine metabolites that exhibit anticancer properties when added to leukemia cells.

Diabetes drug slows early-onset puberty in girls

A study found that metformin treatment delayed menstruation and decreased insulin resistance in young girls at risk of early puberty. The treatment also reduced abdominal fat and improved cholesterol levels, lowering the risk of future heart disease.

Olfactory bulb size may change as sense of smell changes

Research reveals that olfactory bulb volume changes in response to individual sense of smell changes. Patients with reduced or lost sense of smell show varying increases and decreases in olfactory bulb size. The correlation between olfactory bulb volume and function may aid in predicting disease prognosis.

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.

Health varies widely across different regions of Mexico

A new study found that Mexico's southern region has the highest rates of infectious and nutritional diseases, as well as non-communicable diseases such as heart disease and diabetes. The study also identified being overweight, high blood glucose, and alcohol use as major risk factors for these diseases.