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Science News Archive 2004


Page 43 of 135

A traveling-wave engine to power deep space travel

Researchers have designed a traveling-wave engine that converts 18% of heat source energy into electricity, outperforming current thermoelectric devices. The device's high reliability and efficient energy conversion make it suitable for deep space probes.

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.

A bacterial cause of Crohn's disease?

A study finds that 50% of patients with Crohn's disease have viable MAP in their blood, suggesting a systemic infection. The findings raise questions about the role of MAP in IBD and highlight the need for further research to clarify its significance.

Cancer drug shows promise against lupus

A study led by the University of Rochester Medical Center found that cancer drug rituximab significantly improves health in patients with lupus by reducing B cells. The treatment was effective for 11 out of 17 patients, with many able to reduce or discontinue traditional medications.

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.

Food study finds diets get healthier over time

A new study suggests that most people's diets get healthier from childhood to young adulthood. Adults tend to consume more fruit and vegetables and less fat and sugar compared to their child years. However, many people perceive barriers to healthy eating, such as lack of time and work patterns.

Cockroach-like robot leads new research effort

Researchers from University of California, Berkeley, and other institutions will study the mechanical and neurological basis of locomotion using RHex, a short six-legged robot. The team aims to uncover the neural and muscular control and feedback loops that lead to similar patterns of movement in animals

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.

New grant addresses minority nurse shortage

A $500,000 grant will provide support to students from North Philadelphia entering the first year of their nursing program. The project aims to increase diversity in the nursing profession by providing culturally sensitive activities and professional development sessions.

US child health worse than other industrialized countries

A recent study found that US child health lags behind other industrialized nations in infant mortality rates, immunization rates, and overall well-being. The country's high level of income inequality is cited as a primary factor contributing to these poor rankings.

Apple iPhone 17 Pro

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

Humans not irrational, just wary

Researchers developed a new trust model to interpret subjects' performance in a simple task. The model factors in doubt and found that many students expressed doubt despite being told it was unlikely. This challenges the assumption that humans are irrational when doubting instructions.

Glass research earns Lehigh a coveted NSF award

The Lehigh International Materials Institute (IMI) will receive $3.25 million to develop new glass functionalities and foster global collaboration. The grant aims to revitalize the worldwide glass research community and educate a new generation of experts, addressing concerns about the US losing its lead in the field.

Two studies in Science point to new evidence in asthma development

Two studies published in Science suggest that eosinophils play a crucial role in the development of asthma, but the exact mechanisms are not yet clear. The findings challenge previous theories and highlight the importance of considering individual genetic factors in treating asthma.

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.

Proving that shape-shifting robots can get a move on

Researchers developed control methods for self-reconfigurable robots that can change shape and perform different tasks without falling apart. The methods ensure guaranteed correct behavior, enabling robots to adapt to various environments and tasks.

Joslin researchers clarify mechanisms for beta-cell formation

Researchers identified a mechanism for beta-cell growth during insulin resistance, which occurs as a normal protective response to delay type 2 diabetes onset. PDX-1 plays a crucial role in regulating this growth, and modulating key proteins involved may enhance beta cell replication or transplantation

Mayo Clinic researchers define link between eosinophils and asthma

A new study by Mayo Clinic researchers demonstrates that eosinophils are required for mucus accumulation and lung dysfunction associated with asthma. Transgenic mice without eosinophils showed reduced or eliminated disease symptoms following allergen exposure, paving the way for novel therapies to treat and prevent asthma.

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.

New way to protect brain from stroke damage

Researchers identify a new mechanism for stroke damage, revealing acid-sensing ion channels as major players. Blocking these channels with existing pharmacologic agents may provide a potential therapeutic target for stroke therapy.

Major EU project shows 'Killer bacteria' more common than expected

A new study by the European Union shows that group A streptococci (GAS) infections are more common than previously thought, with an estimated 18-20,000 cases per year across the EU. The study also reveals a higher number of different bacterial types, with nearly 200 types currently identified, and potential antibiotic resistance issues.

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.

'Mighty mouse' helping find ways to prevent osteoporosis

Researchers are using genetically engineered 'mighty mice' to study the relationship between muscle and bone health. They hope to find a way to build bone and avoid osteoporosis in young people. Early evidence suggests that exercise may not have as much of an impact on bone density as previously thought.

Venn diagram tactics to vet complex disease

A study using Venn diagram tactics categorizes mutation types in cells from different patients, identifying a novel cause of lethal neonatal mitochondrial complex I deficiency. The authors demonstrate the technique's strength by pinpointing mutations in the NDUFS6 gene, a previously unknown contributor to this disease.

Researcher looks at racial identity as part of healthy lifestyle

A researcher is creating a new health program that takes into account an individual's ethnic identity to improve health outcomes for African Americans. The program, which will involve 1,000 participants categorized into five ethnic identity groups, aims to match educational materials to each person's cultural beliefs.

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.

Ecology of infectious diseases grants awarded

The National Science Foundation has funded six projects under its Ecology of Infectious Diseases program to understand the ecological and biological mechanisms behind relationships between human-induced environmental changes and infectious disease emergence. The research will focus on understanding disease transmission, unintended heal...

European common frog found to use novel mating strategy

The European common frog has a complex breeding strategy where males engage in clutch piracy, fertilizing eggs left unfertilized after the initial encounter. This behavior leads to a greater percentage of fertilized eggs and clutches with multiple fathers.

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.

JCI table of contents September 15, 2004

Researchers develop methodology to efficiently pinpoint mutations in mitochondrial respiratory chain, identifying new cause of lethal neonatal disease. The technique uses cell-fusion experiments and bioinformatics analyses to categorize mutation types, revealing complex genetic backgrounds.

Protein is key to fatal disorder and normal cell function

A study at Duke University Medical Center discovered the cln3 protein transports a vital lipid that is essential for normal cell function. The breakdown of this system leads to uncontrolled apoptosis in Batten disease, but the protein also plays a role in cancer, Alzheimer's, and AIDS.

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.

Human chromosome 5 final sequence analysis released to public

The completed sequence of human chromosome 5 reveals 66 known disease genes and 14 additional genes linked to diseases. The vast terrain also holds important regulatory elements and conserved noncoding regions with powerful influence on gene activity.

A one-two punch for tumors

Researchers found that combining histone deacetylase inhibitors with anti-angiogenesis drugs reduced tumor growth in mice by up to 85% and controlled new blood vessel formation by 60%. This combination therapy may provide a greater impact on cancer development than using the drugs alone.

Picking prostanoids to provide protection

Researchers found that prostacyclin (PGI) protects against atherosclerosis, while thromboxane A2 (TXA2) promotes its development. TP antagonists and molecules with PG-like activity may aid in atherosclerosis prevention, aligning with previous work on low-dose aspirin therapy.

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.

Brain has center for detecting sound motion

Researchers identified a brain region that processes sound location and motion, with impaired function leading to 'cortical motion deafness'. The study provides evidence of an auditory motion module within the right posterior superior temporal gyrus.

Hardy buoys: Texas A&M project predicts oil spill movements

The Texas Automated Buoy System (TABS) uses nine buoys to predict oil spill movements, saving the state up to $250,000 in cleanup costs. The buoys also aid in locating ship passengers lost overboard and helped retrieve the Ehime Maru, a Japanese vessel sunk by a U.S. submarine.

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.

Earth's best view of the stars – Antarctica's Dome C

Astronomers have successfully taken high-quality images using a ground-based telescope at Dome C, Antarctica, which rivals the capabilities of the Hubble Space Telescope. The site offers excellent seeing conditions and low atmospheric interference, making it an attractive alternative to space-based astronomy.

The machinery of forgetting fears

Researchers found that the amygdala is involved in both fear acquisition and unlearning, while the ventral medial prefrontal cortex (vmPFC) plays a critical role in retaining extinction learning. The study provides evidence that the mechanisms of extinction learning may be preserved across species.

Carbon nanotube oscillator might weigh a single atom

Researchers at Cornell University have created a tiny oscillator that uses a carbon nanotube to vibrate at radio frequencies, enabling mass sensing and gas detection capabilities. The device is so small that it can potentially weigh individual atoms, offering new possibilities for scientific research and applications.

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.

Chemical sensor could enable new ways to monitor pollutants

Researchers at Ohio State University have developed a new chemical sensor that can detect NOx pollutants with enhanced accuracy and rapid detection. The sensor uses an innovative filter to remove interference from carbon monoxide, allowing it to pick out specific gases from combustion exhaust.

Study published in Mayo Clinic Proceedings finds risk of ADHD greater in boys

A new study published in Mayo Clinic Proceedings found that males are at a higher risk for ADHD than females, with low maternal and paternal education levels increasing the risk. Researchers analyzed birth certificates of children born between 1976 and 1982 and identified those with ADHD using medical and school records.

Understanding celiac disease

Researchers found that IL15 induces a series of biochemical changes in NKG2D signaling pathway converting CTL cells into Lymphokine-Activated Killer Cells. MICA molecules are present in elevated amounts in celiac patients' intestinal cells, providing a target for immune cell attacks

Galactic ballet captured by Gemini

The Gemini Observatory has released a breathtaking image of Stephan's Quintet, capturing the intricate interactions between five galaxies. The image showcases sweeping arches of gas and dust, tracing the ongoing dance of gravitational forces that have warped their structures over millions of years.

Use of beta-blockers associated with decreased risk for fractures

A large case-control analysis found that use of beta-blockers, alone or combined with thiazide diuretics, is associated with a significantly decreased fracture risk. Long-term users showed a 29% lower risk of fractures, particularly in men, while women exhibited a weaker association.

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.