Bluesky Facebook Reddit Email

Science News Archive 2004


Page 42 of 135

Wastewater could treat itself, power city

Researchers at U of T found that municipal wastewater contains enough organic material to generate significant amounts of electricity. By using anaerobic digestion instead of aerobic treatment, wastewater treatment plants could produce enough electricity for their own operations and potentially export excess energy to the grid.

HIV dementia mechanism discovered

Researchers found dopamine transporter injury in HIV dementia patients, suggesting a new direction for treatment. The study suggests that viral suppression may lead to recovery of deficits in the dopamine system.

Obese trauma patients more likely to die of their injuries

The study found that obese trauma patients were 6 times more likely to die from their injuries compared to non-obese patients. The researchers also discovered that the obese group had a higher incidence of multiple organ failure, with 13% experiencing this complication compared to 3% in the non-obese group.

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.

Prion propagation: Avoiding the toxic oligomer

Researchers found that amyloid growth can occur independently of oligomers in yeast prion protein Sup35. The study suggests that creating conditions favoring fiber growth while inhibiting oligomer formation might limit the toxic effects of amyloid plaques.

Half of patients with aggressive non-Hodgkin's lymphoma are under-treated

A study of 4,522 patients found that 48-53% received less than 85% of recommended chemotherapy doses due to treatment delays or dose reductions. Patients over age 60 had significantly higher risk of under-treatment. The study emphasizes the importance of timely and effective chemotherapy management.

Apple iPhone 17 Pro

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

More frequent monitoring advised for people with diabetes

The study suggests that monitoring glycated hemoglobin levels can help identify individuals at increased risk of developing cardiovascular disease. Researchers found a significant association between elevated glycated hemoglobin levels and increased risk of large-vessel cardiovascular disease among people with type II diabetes.

Vanilla may have a future in sickle cell treatment

Researchers have developed a variant of vanillin that can treat sickle cell disease, a condition that causes red blood cells to form the hazardous sickle shape. The compound, MX-1520, was tested in mice and found to inhibit the formation of rigid sickled cells, offering hope for safer and more effective treatment options.

Annals of Internal Medicine tip sheet for Sept. 21, 2004

Two studies find that high hemoglobin A1c levels are an independent risk factor for cardiovascular events, including heart disease and stroke. Improvements in glycemic control may improve health outcomes in people without diabetes.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Scientists decipher genetic code of biothreat pathogen

Researchers have cracked the genetic code of B. mallei, a highly evolved pathogen that causes glanders, an infectious equine disease. The study reveals a tightly regulated set of virulence genes and genomic instability, which may explain why B. mallei can evade host immune responses.

Binocular rivalry: Fulfilling visual expectations

A recent study using binocular rivalry demonstrates the importance of feedback in interpreting visual images. The experimenters found that once a walking figure is recognized, it can cause dominance of signals from one eye and suppression of signals from the other.

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.

Immediate breast reconstruction after mastectomy does not delay chemotherapy

A study of 128 women found that immediate breast reconstruction after mastectomy did not delay the initiation of postoperative chemotherapy. The overall rate of wound complications was 15.5%, with higher rates in patients who underwent immediate breast reconstruction, but these complications did not affect chemotherapy timing.

Targeted therapy knocks out pediatric brain cancer in mice

Researchers developed a small molecule inhibitor of the Sonic Hedgehog signaling pathway, HhAntag, which completely eradicated medulloblastoma tumors in mice. Long-term treatment prolonged medulloblastoma-free survival without toxic side effects.

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.

Research suggests new avenue for stopping, preventing colon cancer

Researchers at Vanderbilt University Medical Center have identified a new potential target for preventing colon cancer: the PPARdelta gene. By 'knocking out' this gene in mice, they found that polyp development was inhibited, providing a promising avenue for safer prevention methods.

Amyloid fibers sprout one step at a time

Amyloid fibers assemble individually through the addition of monomers, contradicting earlier theories that suggested oligomeric globules played a key role in their formation. This finding has significant implications for understanding amyloid diseases such as Alzheimer's and Parkinson's.

'Fossil genes' reveal how life sheds form and function

Scientists have found a trackway of fossil genes in the Japanese yeast Saccharomyces kudriavzevii, showing how an organism discards traits when they are no longer needed. The discovery provides insights into the process of evolution and how genetic pathways become obsolete.

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.

Martin Saunders to receive the James Flack Norris Award

Martin Saunders will receive the James Flack Norris Award for his seminal contributions to NMR spectroscopy, structures, and rearrangements of carbocations. He developed new methods for studying these highly reactive species, allowing him to discover detailed mechanisms and rates of rapid rearrangement reactions.

Fractures mean broken lives in developing world: Study

A study by Dr. Massey Beveridge highlights the importance of orthopedic care in developing countries, where road traffic injuries and falls are major causes of disease burden among children. With only 400 surgeons serving 200 million people, access to simple surgical and obstetrical procedures could prevent up to 10% of all deaths.

T.P. Ma receives the 2005 IEEE Andrew S. Grove Award

T.P. Ma, a Yale University professor, is honored with the 2005 IEEE Andrew S. Grove Award for his groundbreaking research on complementary metal oxide semiconductor (CMOS) gate dielectrics. His work has focused on microelectronics, semiconductors, and memory applications.

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.

Scientists explore genome of methane-breathing microbe

The study reveals that methanotrophs, including M. capsulatus, have multiple pathways for using methane and can respond to environmental changes by switching between different chemical pathways. This flexibility could make them a valuable tool for reducing methane emissions.

Key stimulator of colorectal cancer identified

Researchers found that PGE2 activates PPARd through a signaling pathway promoting cell survival and polyp formation. This effect was not observed in mice lacking PPARd, highlighting the role of PPARd as a critical downstream mediator in PGE2-stimulated colorectal tumor growth.

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.

Green, leafy spinach may soon power cellphones and laptops

Researchers at MIT and partners successfully integrated a photosynthetic protein complex with a solid-state electronic device, paving the way for efficient energy generation. The innovation uses spinach chloroplasts to create a dry environment that stabilizes protein complexes, enabling the development of practical organic solar cells.

Study reveals why eyes in some paintings seem to follow viewers

A study reveals that the apparent movement of eyes in paintings is caused by visual perception, not supernatural forces. The researchers found that changes in viewing direction had little effect on the observers' perceptions, except for making the torso look thinner when viewed from an angle.

Economy of movement

Researchers Konrad Körding and colleagues used utility functions, commonly used in economics, to analyze motor control. They found a surprising amount of agreement on preferred movements and a counterintuitive result that longer resistance was preferred over stronger resistance.

Genes expose secrets of sex on the side

Researchers at the University of Arizona have discovered new insights into ancient mating and migration patterns in humans using genetic data. The study found that men's genes traveled farther than women's, contradicting previous assumptions about patrilocality, a common marriage practice.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

The art of happiness...Is volunteering the blueprint for bliss?

Research finds that areas with high levels of informal voluntary activity enjoy better health, higher GCSE grades, and lower crime rates. Volunteering is also strongly linked to overall life satisfaction and happiness, with some communities recording the highest percentages of people satisfied with their lives.

Genetic modification of linseed produces healthier omega 3 and 6 fatty acids

Researchers produced genetically modified linseed plants that accumulate significant levels of very long chain poly-unsaturated fatty acids (PUFA) in seed, improving human nutrition. The production of these oils in plants may reduce unsustainable pressures on fisheries and provide a sustainable alternative for consumers.

Middle childhood development and later adult outcomes

Research on the 1970 British Cohort Study found that middle childhood development significantly affects adult outcomes. Children's relative cognitive ability changes between ages 5 and 10 are crucial, as those who 'escape' their initial performance tend to have better life chances and reduced risk of negative adult outcomes.

Adolescents, their parents, and decisions: Who decides?

The study found that adolescents' autonomy increased over five years, with more independence in personal and multifaceted issues as they aged. Parental involvement in prudential and conventional decisions was associated with better adjustment, while joint decision-making on multifaceted issues predicted positive outcomes.

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.

Family predictors of girls' sex-typed activities

Girls spent more time in feminine activities with lower testosterone levels and reported interest, while masculine activities increased until age 13. Family characteristics, such as personality traits and attitudes, also predicted involvement in sex-typed activities.

Algal contact as a trigger for coral disease

Macroalgae, particularly Halimeda opuntia, triggers a virulent white plague type II disease in corals. The alga is also found to be a reservoir for the causative agent Aurantimonas coralicida.

22nd amino acid synthesized and added to genetic code of e. coli bacteria

Researchers have successfully synthesized the 22nd amino acid, L-pyrrolysine, and demonstrated its incorporation into new proteins within E. coli bacteria. The discovery explains how this amino acid is inserted into proteins inside living cells, following a traditional path that had been predicted by scientists.

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.

Is home visiting an effective strategy?

A meta-analytic review found that home visiting programs enhance parenting behaviors, increase educational attainment, and boost children's cognitive and social skills. While the benefits are statistically significant, the magnitude of the impact varies.

Chemical genetics identifies SARS inhibitors

Chemical genetics was used to identify novel small-molecule inhibitors of severe acute respiratory syndrome-associated coronavirus. The study revealed four compounds that effectively inhibited the replication of the virus, providing new hope for the treatment of SARS.

New technique for thyroid cancer therapy eliminates many side effects

Researchers in The Netherlands and Belgium developed a new technique that uses genetically engineered rhTSH to stimulate thyroid cancer cells to absorb radioactive iodine, avoiding hypothyroidism and increasing safety. This approach may allow higher doses of radioiodine to be used when needed, improving treatment efficacy.

Teenagers' perceptions of math and English

A study of 1,323 students found that teenage perceptions of math and English changed over time, with boys generally liking math more and girls preferring English. Initially, girls found math harder than boys but this gap narrowed by senior years.

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.

Researchers develop fast track way to discover how cells are regulated

A team of researchers has developed a fast-track method to identify regulatory sequences in the genome that control cell growth and development. The study, published in Science, used a unique algorithm called Improbizer to predict where these regulatory sequences might be found in the genome.

Preferential parental treatment of siblings

Research found that differential parenting, particularly negative behavior, is linked to child maladjustment and aggressive-disruptive behavior. The study suggests parents should follow a principle of fairness in dealing with their children, but acknowledges that special circumstances require different treatment.

Scientists shed light on mechanism behind beneficial effects of red wine

Researchers have deciphered the three-dimensional structure of a plant enzyme that produces resveratrol, a key component of red wine with impressive health benefits. The study provides new insights into the relationships among plant proteins, shedding light on how grapes produce resveratrol to defend against fungal invasion.

Brown ecologist garners major National Science Foundation grant

A team led by Brown ecologist will study how Arabidopsis integrates environmental signals to flower at favorable times. The research aims to improve food production, understand climate change's impact on crops and wild plants, and shed light on genetic variation.

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.

UMaine shares ice core technology with China

Researchers from UMaine and China collaborate on a joint expedition to study atmospheric circulation and global warming. They successfully melted an 87-meter ice core using a device built at UMaine, shedding light on changes in the region's climate.