Bluesky Facebook Reddit Email

Science News Archive 2002


Page 31 of 93

Another view of Chicago school policy

Professor Lipman's research highlights how current policies exacerbate existing inequalities and create new ones. She recommends providing all students with an intellectually rich education, deploying significant resources to under-resourced schools, and challenging deficit notions about children of color.

Endangered chimpanzees focus of urgent action

The western chimpanzee is critically endangered with only 4% of its original population remaining. Conservation efforts are underway to address threats such as agricultural development, logging, and the bush meat trade. The action plan provides a roadmap for halting or reversing the decline in chimpanzee numbers in West Africa.

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.

Study finds new target for development of anti-cancer drugs

Researchers at Penn State have identified a protein, km23, that is defective in nearly half of human cancer tissues. Alterations in this protein disrupt cell signaling, leading to tumor growth and spreading. The team hopes to develop drugs targeting km23 to prevent tumor progression and diagnose specific cancers.

Apple iPhone 17 Pro

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

Information age will change doctors’ role in healing

As patients access health information online, doctors may take on advisory roles, helping patients make informed decisions. Despite internet accessibility, patients trust doctors more than online sources, ensuring the profession's continued relevance in society.

Concern about future health problems goes up in smoke

Smokers are less sensitive to future health consequences than nonsmokers, prioritizing immediate health gains over long-term risks. Smoking cessation therapies should focus on illustrating the immediate consequences of not smoking, such as contingency management therapy.

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.

Identifying individuals at risk for Alzheimer's disease

A study has identified genetic markers that can help guide clinical trials for anti-Alzheimer drugs, potentially leading to the development of a more manageable pool of individuals at high risk. These markers may allow researchers to winnow down the general population and focus on those with relatively higher risk for Alzheimer's disease.

Sensing tanks, as well as cancer

A newly developed 200-channel hyperspectral remote sensing capability has shown astounding results in improving breast cancer diagnosis accuracy. The algorithm, invented by ONR scientists Dr. Harold Szu and James Buss, uses a brain-like approach to analyze thermal heat distribution and detect early-stage ductal carcinoma in situ.

Mass spectrometer weighs in as proteomics breakthrough

A new, high-throughput mass spectrometer has been developed at the Pacific Northwest National Laboratory, providing unparalleled sensitivity and accuracy. This system enables the thorough identification and characterization of proteins, which is crucial for understanding cellular function, disease progression, and treatment options.

Tagging the great white shark...and a few of his friends

The TOPP program will track the movements of 15 species, including great white sharks and tuna fish, across immense Pacific Ocean areas. Scientists aim to understand migration patterns, diving behaviors, and ocean conditions affecting these marine animals.

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 an aspirin a day keep atherosclerosis at bay?

Researchers found that low-dose aspirin changes the composition of arterial plaques, reducing cholesterol-rich cells and increasing collagen and smooth muscle cells. This shift in plaque composition is associated with reduced inflammation and lower risk of rupture.

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.

For the first time, drug shows promise to help spit tobacco users quit

A new study found that bupropion significantly improved abstinence rates among participants who used spit tobacco, with 44% quitting after 12 weeks compared to 26% in the placebo group. Additionally, participants taking bupropion gained less weight than those on the placebo, averaging only 1.54 pounds versus 9.7 pounds over the 12-week...

Brain chemicals can thwart desire to smoke cigarettes

Researchers found that a drug mimicking dopamine effects reduces desire to smoke, while a drug impeding dopamine's effects increases puffing frequency. The study suggests dopamine plays a crucial role in cigarette smoking addiction.

Dinosaur ancestor's vision possibly nocturnal

Researchers recreated a 240-million-year-old protein to study the vision of dinosaur ancestors, finding evidence that they may have had dim-light vision. The discovery offers insights into how biologically important molecules evolved over time and paves the way for further studies on ancient species.

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.

Leaner, meaner carriers

The Navy is exploring the use of HSLA-65 steel in its next-generation aircraft carriers to reduce weight and increase service life. Preliminary calculations suggest that this new steel can provide equal or greater service life than traditional high-strength steel, but be thinner and weigh less.

A genetic contribution to obsessive compulsive disorder

A study published in Molecular Psychiatry found a link between a genetic variant of the serotonin receptor gene and obsessive-compulsive disorder. The research suggests that individuals with this variant may be more susceptible to developing OCD, potentially leading to earlier identification and treatment.

Mayo Clinic develops blood vessel cells from adult progenitor cells

Researchers successfully converted circulating smooth muscle progenitor cells into functional smooth muscle cells, which could help address interventional cardiology problems. The study may pave the way for therapeutic angiogenesis by preventing or eliminating the adhesive properties that contribute to plaque formation.

Mapping genes for schizophrenia in the South Pacific

A genetic study in Palau reveals distinct genetic factors contributing to schizophrenia in each of five families. The findings reinforce the complexity of schizophrenia and demonstrate the value of large extended pedigrees for gene mapping.

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.

Free software predicts how and when steel beams will buckle

A free computer program developed by Johns Hopkins researcher Benjamin W. Schafer allows designers to test stability and safety of thin-walled structures before construction. The CUFSM software provides critical predictions on buckling conditions, enabling the development of sturdiest and most cost-effective designs.

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.

Other highlights in the September 4 issue of JNCI

A study found no association between carbohydrate and sucrose intake and pancreatic cancer risk, but a diet high in glycemic load increased the risk among overweight women. Dairy product consumption was not associated with reduced breast cancer risk among postmenopausal women, but may be protective in premenopausal women.

Cigarette tax hike could save millions of lives

A recent study estimates that cigarette tax hikes could prevent between 5 million to 16 million tobacco-related deaths globally. The greatest savings would be in low- and middle-income countries, with the greatest impact on young smokers. Price increases are considered the most cost-effective anti-smoking intervention.

Peer pressure matters in young adults’ smoking decisions

A study of 278 male and 433 female smokers found that peer pressure, parental approval, and social bonds played a significant role in quitting smoking. Females were more likely to quit if their parents disapproved of their smoking and had non-smoking friends.

Study finds condom use errors are common among college-age men

A study by Emory University Health Sciences Center found that many young men have trouble using condoms correctly, with errors including not checking expiration dates and putting on condoms during sex. The research emphasizes the importance of providing adequate condom use education to prevent HIV and other STDs.

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.

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.

Ancient Illinois village unearths lode of questions

Archaeologists discovered a 900-year-old square hilltop village in Illinois that contradicts previous understanding of Cahokian settlements. The village had a rigid orientation and large central residence with religious structures, sparking questions about its purpose as a farming village or administrative outpost.

Popular long-acting contraceptive linked to vascular dysfunction

Researchers found that depot medroxyprogesterone acetate (DMPA) reduces flow-mediated dilatation, a key indicator of endothelial function. DMPA can still be used safely by healthy women without cardiovascular risk factors, but those with risk factors should review their decision with their physician.

Clash of values at crux of debate over landscape aesthetics

Researchers argue that prioritizing ecological aesthetics over traditional scenic preferences may not be the best approach. Instead, they suggest building a consensus on ecosystem health and understanding how people adopt environmental concerns. The study highlights the need for a balanced approach to landscape management.

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.

The myth of globalisation

According to Professor Rugman's research, only a handful of multinational companies, such as Nestlé and Unilever, can be considered 'global'. The majority focus on sales within their home region, with many struggling to maintain profitable foreign operations. This trend towards 'de-globalisation' is driven by persistently poor global p...

Annals of Internal Medicine, tip sheet, September 3, 2002

A Canadian National Breast Cancer Screening Study found that annual mammography for five years had no impact on breast cancer deaths in women aged 40-49. The US Preventive Services Task Force recommends starting mammography at age 40, but evidence is considered 'fair' due to conflicting results.

Money matters when it comes to body’s attention to tasks

A study by Larry W. Hawk Jr., Ph.D., found that paid college students showed decreased blink size and strength in response to loud noises, indicating increased attentiveness. While payment motivated better task performance, it didn't lead to significant differences in overall results.

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.

Rad50 and the maintenance of genome stability

A single amino acid change in Rad50 can have far-reaching effects on genetic information transmission, impairing stem cell populations and predisposing to cancer. Mice with the mutation display genomic instability, partial embryonic lethality, and a higher risk of lymphoma development.

Sense of control eases physical toll of stressful situation

A study by Pennsylvania State University researchers found that having control over a situation can reduce an individual's cardiovascular disease risk. Participants in a video game experiment were either told they could control the noise level or not, and those who felt in control experienced lower blood pressure and reduced stress on ...

Ghana takes aim at bushmeat hunting

Bushmeat consumption has been linked to chemical poisoning, with 30% of samples containing organochlorines, carbamates, and organophosphorus. The Ghana government aims to reverse the extinction of wildlife through sustainable alternatives like wildlife farming and education campaigns.

Fitness level may predict women’s hypertension risk

Researchers found that women with higher fitness levels showed a blunted systolic blood pressure response during the hand/ice water test, which could help predict future hypertension risk. Fitness levels did not affect blood pressure changes during other tests, but increased heart rates in fitter participants.

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.

Parents' risky behavior rubs off on children

A study found that adolescents whose parents engage in risky behaviors, such as smoking and heavy drinking, are more likely to be sexually active and participate in other problem behaviors. Conversely, high levels of parental supervision are associated with reduced likelihoods of sexual activity.

Exercise may not lift spirits of women with eating disorders

A recent study by researchers Jennifer Gerlach and Dorothy Espelage found that exercise may not have a positive impact on the mental health of women with eating disorders. In contrast, men with similar exercise habits showed strong associations between exercise and improved psychological well-being.