Bluesky Facebook Reddit Email

Science News Archive August 2005


Page 7 of 15

Nose odors and mouth odors: The brain distinguishes

Researchers found that brain responds differently to odors introduced through the nose versus the mouth, with distinct brain regions activated. The study suggests that olfactory referral illusion is robust and cognitively impenetrable, and may play a role in flavor perception.

Celestron NexStar 8SE Computerized Telescope

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

Race and gender disparities persist in heart attack care and mortality

A study found persistent racial and gender disparities in heart attack care, with black women having lower rates of reperfusion therapy and higher in-hospital mortality rates compared to white men. The differences were not explained by patient characteristics, raising concerns about under-treatment.

Supernova 1987A: Fast forward to the past

Recent Chandra X-ray Observatory observations have given insight into the behavior of the doomed star before it exploded, indicating that the predicted spectacular brightening of the circumstellar ring has begun. The supernova produced a shock wave that rumbled through the cavity, and recent data indicate that this event has started.

Apple iPhone 17 Pro

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

80 year olds should be given heart bypass surgery

Researchers analyzed data from 12,461 patients who underwent cardiac surgery between 1996 and 2003. The study found that elderly patients were more likely to undergo emergency surgery, but their chances of survival were 50% better after the first year of surgery compared to their younger peers.

Alteration of brain protein regulates learning

The study found that Apoer2, a receptor interacting with the NMDA receptor, plays a crucial role in regulating synaptic signaling and learning. Mutant mice lacking this receptor had difficulties with learning and memory tasks.

Insight into the processes of 'positive' and 'negative' learners

Research found that 'positive' learners show larger ERNs in conflicts, suggesting they learn more from mistakes, while 'negative' learners experience greater conflict in negative feedback conditions. ERN also predicts the degree to which participants learn from errors.

Lessons from 2004 point the way in 2008 election

According to Campbell, increased voter turnout was a key factor in the 2004 Republican victory. Nearly 60% of eligible voters participated, with competitive states experiencing higher turnout rates. The study also notes that party polarization and incumbent advantage will play significant roles in the 2008 election.

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.

$150 million Teragrid award heralds new era for scientific computing

The US National Science Foundation has awarded $150 million to Teragrid, a distributed cyberinfrastructure that integrates high-performance computers, data resources and tools. Researchers will have access to sophisticated IT applications and computational tools to tackle complex scientific questions.

U. of Colorado researchers hunting down, studying new microorganisms

A University of Colorado research group has received a $1.75 million grant to study newly discovered microorganisms in the harsh climate of Colorado's high mountains. Led by Professor Steve Schmidt, the team aims to understand how these microorganisms function and their potential applications in biotechnology.

Fighting breast cancer

Researchers at Sunnybrook Hospital have developed a unique mouse model that enables scientists to study how breast cancer spreads. By analyzing the genetic makeup of tumour cells, they hope to predict which tumours will metastasize and develop new treatments.

Purdue research shows added calcium benefits women on the pill

A Purdue study found that increasing calcium intake by 200-300mg per day can significantly boost bone mineral density in young women taking oral contraceptives, reducing the risk of osteoporosis. The researchers suggest that this simple change can prevent a significant loss of bone mass, particularly during peak bone development 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.

Brightly-coloured fruit and veg may protect against arthritis

Researchers found that higher intake of beta-cryptoxanthin and vitamin C in fruit and vegetables was associated with a lower risk of developing inflammatory polyarthritis. A modest daily increase in these nutrients, equivalent to one glass of orange juice, may help protect against inflammatory joint diseases.

Today's baby boomers are heavier and more likely to have arthritis

A study published in the American Journal of Public Health found that baby boomers' obesity rates grew substantially compared to previous generations, leading to a surge in arthritis cases attributed to obesity. The researchers suggest that public health strategies could have a major impact on the lives of aging baby-boomers.

Researchers discover new route to hemoglobin synthesis

A research team has identified the gene glutaredoxin 5 (grx5) as essential for hemoglobin synthesis in zebrafish and humans. The discovery reveals a new pathway involving iron-sulfur clusters, which is critical for heme production.

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.

Early humans wore 'shoes' 30,000 years ago

Researchers found early humans started using supportive footwear around 26,000 years ago to reduce toe bone strength. This change was likely caused by the introduction of protective footwear, which reduced the roll of the little toes and weakened them over time.

Old drug, new tricks: Prospects for slashing the impact of malaria

A four-year trial in Papua New Guinea is investigating the use of Fansidar as a preventative measure against malaria in children under five and pregnant women. The study suggests that giving just one tablet can reduce the impact of subsequent malaria infections by up to 50%, saving thousands of lives annually.

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.

Long sought-after flowering signal found

Researchers identify FT protein as key player in inducing flower formation, revealing a complex mechanism involving molecular interactions and environmental cues. This breakthrough could lead to improved crop breeding and better control of flowering times.

Researchers make 'embryonic-like' stem cells from umbilical cord blood

A trans-Atlantic team of researchers has successfully created embryonic-like stem cells from umbilical cord blood, a breakthrough that could revolutionize the treatment of serious diseases. The new cell type shares characteristics with both adult and embryonic stem cells, making it an attractive alternative for stem cell therapies.

AIUM announced Endowment for Education and Research grant recipients

The American Institute of Ultrasound in Medicine (AIUM) has announced grant recipients for its Endowment for Education and Research program. The awarded researchers will explore innovative applications of ultrasound technology, including high-resolution imaging, selective intracerebral drug delivery, and peripheral nerve imaging. These...

Researchers propose measures to curb lion attacks in Tanzania

Researchers in Tanzania are facing a significant threat from lions due to the country's rapid population growth and loss of natural prey. The study suggests that pig-control strategies could be an effective way to reduce encounters between lions and people, while also protecting human livelihoods.

A picture does not automatically activate a thousand words

Researchers found that visual cues, such as pictures of objects, can elicit significant brain activity, but this response differs from the electrical signal triggered by verbal cues like words. The study suggests that image processing and word processing may involve separate neural networks.

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.

Soft body fossils of extinct 'lamp shell' digitally reconstructed

Researchers from Yale University and the Imperial College have digitally reconstructed a fossilized brachiopod complete with its pedicle and lophophore, revealing new insights into extinct forms. The discovery sheds light on the evolution of brachiopods and challenges previous assumptions about their similarities to modern examples.

Textile piecework system called 'new slavery'

The piecework system, used in large textile factories, eliminates daily wages and overtime, leaving workers with extremely low pay and long working hours. Workers must constantly compete for work, fostering distrust and tension among them.

Black joblessness blamed on multilayered segregation

A study by Robert L. Wagmiller found that highly concentrated joblessness among black men is produced by the multidimensional layering of segregation, creating unique challenges for neighborhoods and employment opportunities. The research highlights the negative impact of residential location on employment futures.

Proposal would allow wild animals to roam North America

A team of scientists proposes rewilding vast ecological history parks with large mammals from Africa, aiming to revitalize ecosystems and create jobs. The plan could fill gaps in the web of interactions between species, restoring diverse ecosystems and promoting biodiversity.

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.

Simple explanation for complex pattern of feather development

A team of biologists has discovered that plumed feather structures involve the coordination of at least two genes that activate and inhibit barb growth. This finding provides the best experimental evidence for a classical theory of growth in complex biological structures.

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.

Gene loss accelerates aging

Researchers have discovered that the loss of the p63 gene accelerates aging in mice, leading to hair loss, reduced fitness and body weight, progressive curvature of the spine, and a shortened lifespan. This study suggests that p63 plays a fundamental role in maintaining health and preventing cancer.

Slower care for heart attack patients treated off hours and weekends

A study by Yale University researchers found that delayed treatment for heart attacks treated outside regular hours leads to increased mortality rates. PCI therapy, which opens narrowed coronary arteries, is more effective when administered promptly, but delays result in reduced survival benefits.

Gene expression levels may reveal stage of Huntington's disease

Researchers analyzed gene expression patterns in blood samples from patients with Huntington's disease (HD) and asymptomatic carriers to identify potential biomarkers. The study found 12 genes with significantly altered expression levels, which rose to disease-associated levels as carriers approached symptom onset.

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.

Dual-drug therapy targets one colon cancer gene

Researchers found that combining interferon with irinotecan boosts IRF5 protein levels in colon cancer cells, leading to increased cell death. The combination therapy may limit side effects and make it harder for cancer cells to build resistance.

Temperature sensing by the circadian clock

Researchers found that low temperatures trigger a specific splicing mechanism in frq mRNA, excluding the l-FRQ translation initiation site and modulating circadian rhythmicity. This temperature-dependent inhibition of translation by uORFs effectively regulates FRQ levels and circadian rhythms.

Breast cancer detected through mammography has survival advantage

Researchers found that breast cancer detected by mammography has a substantially better survival prognosis, even after adjusting for stage of disease and tumor characteristics. The study suggests that this is due to the detection of slower-growing tumors, which are more likely to be node-negative.

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.

Other highlights in the August 17 JNCI

Researchers found that screen-detected breast cancers tend to have better prognoses than clinically detected ones, but may not lead to lower mortality. Meanwhile, patients on cetuximab therapy are at risk of hypomagnesemia and require magnesium supplementation. Additionally, men with Klinefelter syndrome may be more likely to develop c...

Kidney failure a significant cause of ICU deaths worldwide

A large international study found that 6% of critically ill patients develop kidney failure, with 60% dying while hospitalized. Researchers also discovered that 86% of surviving patients do not require dialysis after discharge, providing a clue for treating acute renal failure.

Driving metastasis

Researchers found RhoC essential for tumor metastasis, but dispensable for embryonic development and tumor initiation. RhoC-deficient mice display reduced tumor metastasis, lower cell motility, and survival properties in secondary sites.

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.

Weight control protein may yield antiobesity drugs

Researchers found that SH2-B regulates leptin sensitivity, energy balance, and body weight in mice, leading to obesity and metabolic syndrome. The study identifies SH2-B as a critical component in maintaining leptin sensitivity, potentially serving as a therapeutic target for treating obesity and type 2 diabetes

Bush sneaks in vetoes under a veil of formality

The president's statements provide interpretation of law language and announce constitutional limits on some provisions. This allows the administration to shape policy without passing new legislation, strengthening veto threats.

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.