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Science News Archive August 2005


Page 3 of 15

Nanocoating could eliminate foggy windows and lenses

Researchers have developed a permanent solution to fogging on glass, eliminating the need for constant reapplication. The coating remains stable over time and can be applied to various surfaces, making it suitable for use in eyeglasses, camera lenses, and more.

Ozone layer decline leveling off, according to new study

A recent study suggests that ozone levels in the atmosphere have begun to level off, with some regions even experiencing small increases. However, it is unlikely that the ozone layer will fully recover, and scientists warn that precautions such as UV protection remain vital.

Apple iPhone 17 Pro

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

Hearing loss in older adults may compromise cognitive resources for memory

A recent study published in Current Directions in Psychological Science found that hearing loss in older adults can compromise cognitive resources for memory. The research suggests that the extra effort needed to comprehend words detracts from the cognitive processes involved in memorization. This highlights the importance of sensitivi...

UCLA discovery prevents cell abnormality leading to progeria

Researchers at UCLA used a drug to block mutant proteins from deforming cell nuclei, significantly reducing misshapen nuclei in human cells. The findings offer new clues into how progeria develops and could lead to treatment with new drugs for related disorders like osteoporosis.

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.

USC researchers find drug is tough tumor fighter

A US-led research team discovered a potent cancer-fighting drug, dimethyl-celecoxib (DMC), which overcomes the limitations of its anti-inflammatory cousin celecoxib. DMC halts tumor growth even in drug-resistant multiple myeloma cells and may reduce cardiovascular side effects.

Novel compounds show promise as safer, more potent insecticides

Researchers have identified two novel compound classes that target the ryanodine receptor in insects, offering a promising alternative to older, less-selective insecticides. These compounds, developed by Nihon Nohyaku Co., Ltd. and Bayer CropScience AG, show high potency and mammalian safety against pest insects.

Writing at the nanoscale

Researchers at Brookhaven National Laboratory have developed a new method for creating nanoscale patterns and features on surfaces, known as Electro Pen Nanolithography (EPN). This technique allows for the creation of three-dimensional nanoscale landscapes and has potential applications in molecular electronics and biosensors.

Self-assembled DNA buckyballs for drug delivery

Cornell researchers create hollow DNA buckyballs that can encapsulate drugs, study chemical reactions and have unique electronic properties. The structures, made from branched DNA-polystyrene hybrids, self-assemble into spheres about 400 nm in diameter.

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.

'Mad cow' proteins successfully detected in blood

Scientists successfully detected mad cow proteins in the blood of infected hamsters using a novel method called protein misfolding cyclic amplification (PMCA). The breakthrough could lead to a more effective test for detecting prions in cattle and human blood, reducing the risk of transmission through food and organ transplants.

Researchers shed more light on conversion of water to hydrogen gas

Virginia Tech researchers have made significant progress in understanding how to convert water into hydrogen gas using photochemical processes. They have developed molecular assemblies that absorb light more efficiently and activate conversion, which has implications for the production of clean energy.

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.

Opiate drugs increase vulnerability to stress

A study by Gavan McNally and colleagues found that opiate users are more susceptible to stress-induced anxiety. The researchers tested rats with morphine or saline solution, then subjected them to restraint stress. The results showed that opiate-treated rats experienced greater anxiety responses, including reduced social interaction, a...

Virginia Tech group adds tools to DNA-targeted anti-cancer drugs

A Virginia Tech research group has created molecular assemblies that can absorb therapeutic light and activate complexes attached to DNA, allowing for more precise delivery of cancer-killing drugs. Platinum was added to the structure, ensuring the activation of complexes already attached to the target.

Coffee is number one source of antioxidants

A recent study by the University of Scranton found that coffee provides more antioxidants than any other dietary source in the US. The study analyzed over 100 food items and found that both caffeinated and decaf versions of coffee have similar antioxidant levels, making it the number one source of antioxidants.

Fluke 87V Industrial Digital Multimeter

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

Ways to avoid hazards of heart bypass under study

Researchers are investigating a drug that may block the deadliest form of inflammation in heart bypass patients, including those who have had previous strokes or heart attacks. The study focuses on high-risk patients and pediatric cases, aiming to improve outcomes and reduce morbidity related to heart surgery.

Decisions, decisions: Male or female?

Researchers at Johns Hopkins University discovered that germ cells use the JAK/STAT pathway to receive signals regarding sexual identity. This understanding could lead to new treatments for human infertility and cancer.

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.

Shame, not guilt, related to substance-abuse problems

A study published in Addictive Behaviors suggests that shame, not guilt, is related to substance-abuse problems. The research found that individuals prone to shame may use alcohol and other drugs to cope with feelings of self-blame, while those who experience guilt are less likely to develop substance-use problems.

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.

Intel helps UCSD teach students about wireless, mobile embedded systems

Intel donates microprocessor development kits to support UCSD's Computer Science and Engineering department, enhancing education in wireless multimedia embedded systems. The kits will equip research labs and enable students to work on projects involving application and systems programming for mobile devices.

Novel plague virulence factor identified

Researchers at Duke University identified a novel virulence factor in Yersinia pestis using the C. elegans worm model, which mimics mammalian infection mechanisms. The discovery could aid in developing strategies to protect humans from plague and improve understanding of innate immune responses.

Penn State IST researchers to enhance search engine

The Next Generation CiteSeer project will expand the database, add services, and provide opportunities for joint authoring. The new architecture will be open source, enabling easier use and greater access to metadata.

Improving the potential of cancer vaccines

Researchers have identified a new strategy to turn off the function of CD4+ regulatory T cells, which suppress immune responses to tumors and infectious diseases. This approach could lead to enhanced anti-tumor immunity and boost response to cancer vaccines.

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.

Major advance in the treatment of severe malaria in our region

A new trial has found that artesunate is more effective and has fewer side effects than the standard treatment of quinine in treating severe malaria. The study involved over 1,400 patients from four countries and showed a significant reduction in mortality rates with artesunate treatment.

New vaccine protects more effectively against tuberculosis

Researchers at Max Planck have developed a new vaccine that effectively protects against pulmonary tuberculosis, a major killer of adults worldwide. The genetically engineered BCG vaccine stimulates stronger protection by dendritic cells and offers protection against drug-resistant Beijing family isolates.

Gene expands malaria's invasion options

Researchers have identified two genes that enable P. falciparum parasites to switch from sugar-dependent to sugar-independent invasion of red blood cells. The PfRh4 gene is required for this switching mechanism, which provides the parasite with adaptability in the face of receptor changes and immune system responses.

Harmless virus may hold key to more effective HIV drug discovery

Researchers employed a bacteriophage to learn how an HIV protein responds to new anti-viral molecules, identifying compounds with potential to overcome drug resistance. This approach enables faster and more effective drug discovery for other anti-viral therapies.

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.

New images reveal different magma pools form the ocean's crust

Researchers used reflected seismic waves to image the structure of the lower crust, finding evidence of multiple magma sills forming at different levels. The study suggests that the base of the oceanic crust is formed from several smaller sources of magma rather than a single large pool.

Proving Da Vinci right at the atomic level

Researchers tested a long-held friction theory using a quasicrystalline material, finding that friction along the periodic surface was significantly higher than along the aperiodic axis. The study's findings have implications for understanding the relationship between a material's structure and its frictional properties.

New role for gene that counteracts formation of tumors

Researchers have identified a new protein, Ptprv, that plays a crucial role in preventing and counteracting cancer. The protein works with p53 to halt the cell cycle and block tumor formation, offering new perspectives for cancer treatment.

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.

Sleeping sickness epidemic spreading in Uganda

A study found that mass treatment interventions in Uganda had no significant impact on reducing the prevalence of human infective T b rhodesiense parasites. Since 1998, over 428 new cases have been diagnosed in the Sorotic district, with an additional 300 cases likely going undiagnosed.

Locating crucial atoms in superconductors

Researchers at Cornell University have made a breakthrough in understanding superconductors by locating crucial atoms that increase conductivity but decrease it in localized spots. This discovery could lead to the development of more effective superconductors and unlock new materials for various applications.

JCI table of contents September 1, 2005

Researchers have identified the Dido gene as a potential tumor suppressor in myelodysplastic/myeloproliferative diseases. Additionally, SOCS-7 has been found to regulate insulin signaling and enhance insulin action. Furthermore, aldose reductase expression has been linked to accelerated diabetic atherosclerosis in transgenic mice.

Studies find possible drug targets for improving vascular health

Researchers at Yale University have identified a potential new target for treating vascular disease by inhibiting the protein kinase Akt1. The study found that Akt1 plays a crucial role in the formation of new blood vessels, which is essential for improving blood flow to muscles during exercise.

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.

The link between fasting and acute attacks of porphyria

A team of researchers has discovered a molecular missing link that explains why fasting brings on acute attacks of the genetic disease hepatic porphyria. Fasting increases levels of PGC-1a, which regulates the activity of an enzyme in the heme production pathway, leading to toxic buildup of precursor molecules.

Insulin sensitivity gets a kick out of SOCS-7

The study found that SOCS-7-deficient mice have increased IRS protein levels and prolonged IRS activation, leading to enhanced insulin action and glucose homeostasis. The researchers also observed increased growth of pancreatic islets with elevated fasting insulin levels and hypoglycemia.

Celestron NexStar 8SE Computerized Telescope

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

Scientists confirm super-rotation of Earth's inner core

Researchers analyzed seismic wave data from 30 earthquakes and found waves passing through the inner core arrived earlier when separated in time, indicating material had moved into the path taken by waves traveling through the inner core. The study's findings suggest a dynamic planet with significant changes over millions of years.

Cellular power plants also fend off viruses

Researchers discovered a mitochondrial protein, MAVS, that activates immune response against viral infections. Cells without MAVS are vulnerable to virus, while those with excess MAVS resist infection.

A double punch for female survival

Researchers found that the SXL protein blocks the synthesis of MSL-2 proteins in females by acting on two separate steps. This discovery reveals an entirely new mechanism for controlling protein dosages at the level of RNA, which could have implications for understanding diseases and animal development.

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.

Video analysis adds evidence for ivory-billed woodpecker

Researchers at Cornell University have provided new evidence for the existence of the ivory-billed woodpecker, a species once thought to be extinct. The video analysis highlights key differences in wing coloration between the two bird species, supporting the claim that the footage shows an ivory-billed woodpecker.

Pinpointing the cause of a neurodegenerative disorder

Spinocerebellar ataxia type 1 (SCA1) is caused by a toxic buildup of the protein Ataxin-1, leading to damage in cerebellar Purkinje cells. Researchers discovered that glutamine repeats in the protein cause toxicity, which can also affect other neurodegenerative diseases like Huntington's and Parkinson's.