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Science News Archive April 2005


Page 9 of 14

Currents could disrupt ocean food chain

A study by Oregon State University suggests that ocean currents could disrupt the marine food chain, leading to a decline in phytoplankton productivity. The Atlantic Conveyer current, which warms Europe, is a critical component of this process, and its disruption could have far-reaching consequences for global food security.

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.

New Zealand forest giant prevents landslides

A dynamic landscape model developed by Lieven Claessens predicts landslide-prone areas and calculates rainfall effects. The research aims to conserve kauri forests, which have prevented landslides for over 1,000 years in New Zealand's Waitakere Ranges Regional Park.

Traditional risk factors best predictor of CVD death in kidney patients

A new study found that traditional risk factors such as high blood pressure and diabetes are strongly associated with cardiovascular death in kidney patients. Emerging risk factors like elevated C-reactive protein levels were not as strongly linked to increased risk of cardiovascular death.

Virginia Bioinformatics Institute researcher receives NSF CAREER award

A Virginia Tech researcher is awarded a prestigious NSF CAREER grant to develop unique micro-analytical systems and detection strategies for proteomic investigations. The project aims to address basic technological limitations, enabling faster proteomics and new analytical capabilities.

Schizophrenic antifungal bacteria

Scientists have found that Pseudomonas bacteria can switch between two phases, improving their competitive advantage. The switches are caused by spontaneous gene mutations, enabling the bacteria to respond more quickly to changes.

Celestron NexStar 8SE Computerized Telescope

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

Chemical present in clear plastics can impair learning and cause disease

Research found low doses of BPA in female rats inhibit estrogen-induced synaptic connections, affecting hippocampal development and memory. High concentrations of BPA have been reported in pregnant women's blood, potentially impacting human hippocampal development and long-term effects on children's learning ability.

Chemical library aids in developing drug system for nerve damage

Shelly Sakiyama-Elbert and her team have screened a large number of molecules to find peptide sequences with varying affinity for heparin, a sugar that binds nerve repair drugs. They aim to develop affinity-based drug delivery systems to stimulate tissue regeneration for conditions like nerve damage.

Pregnancy complications related to low levels of anti–clotting proteins

Researchers discovered that low levels of protein Z and S early in pregnancy can increase the risk of pregnancy complications. The study included 103 women with normal pregnancies, 106 with pregnancy complications, and 20 with inherited clotting conditions. Women with prior complications may be at higher risk for future issues.

Apple iPhone 17 Pro

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

Hey, now, what's that sound

The Smart Sensor Enabled Neural Threat Recognition and Identification (SENTRI) system uses software developed by Dr. Ted Berger to recognize suspicious noises. It can distinguish between gun fire and other noises, as well as small-arms fire from heavy weapons.

Obesity and insomnia linked by excitability of brain cells

Researchers found a unique organization of inputs on hypocretin neurons in mice, where excitatory nerve junctions outnumber inhibitory contacts by almost 10 fold. Stressors like fasting excite these neurons, leading to insomnia and associated metabolic disturbances, including obesity.

Ancient enzyme guides healthy eating in mammals

A study found that an ancient enzyme, GCN2 kinase, plays a crucial role in guiding healthy eating behavior in mammals. The enzyme detects changes in blood amino acid levels and triggers a behavioral response to limit consumption of imbalanced food.

New strategies to reduce hospital-acquired infections

Tap water is a significant source of hospital-acquired infections, with biofilm harbouring pathogenic microorganisms. Point-of-use 0.2 micron filters can significantly reduce the release of pathogens and aerosols, providing an absolute barrier between patients and contaminated water.

New gas sensors patterned with conducting polymer

Researchers at National Institute of Standards and Technology (NIST) have developed a method to create nanoporous, conducting polymer films that can detect toxic gases. The process uses electrostatic repulsion to pattern the polyaniline particles on complex device structures.

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.

Mental retardation cause may include cell miscommunication

UF researchers discovered that high levels of phenylalanine in the brains of mice with PKU interfere with brain cell communication, leading to potential developmental delays and disorders. The findings may lead to new treatments for PKU and other neurological disorders.

Protolanguage Amazon inhabitants reconstructed

Linguist Valteir Martins reconstructs the sound structure and lexicon of Proto-East-Maku, an ancient language of the Brazilian Maku people. The language is genetically related to the Arawak languages, challenging earlier claims that the Maku Indians were the first inhabitants of the Amazon region.

Antioxidant-rich diets reduce brain damage from stroke in rats

A new study published in Experimental Neurology found that rats fed diets rich in blueberries, spinach, or spirulina experienced less brain cell loss and improved recovery after a stroke. The antioxidant-rich diets may counteract the burst of free radicals involved in brain cell death triggered by an ischemic stroke.

African-American women less likely to undergo genetic testing than white women

Women with a family history of breast or ovarian cancer are more likely to receive genetic counseling if they're white. African American women are less aware of genetic testing technology and underestimate their cancer risk. The study found a significant racial disparity in the use of BRCA1/2 testing, which is not explained by socioeco...

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Late-breaking science presented at 57th AAN Annual Meeting

Rufinamide shows promise in reducing seizures for patients with treatment-resistant Lennox-Gastaut epilepsy. A new gene mutation in Charcot-Marie-Tooth disease and a common mutation in Parkinson's disease were also identified, offering potential new avenues for research.

Virtual reality, real ingenuity

The Marine Corps has created a dedicated virtual-reality training system for its assault amphibian vehicles, allowing for increased training capabilities due to range and ammunition supply constraints. The Virtual Environment Assault Amphibian Vehicle (VEAAV) training system was developed by a Navy-Marine Corps team in just six months.

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.

Researchers show parents give unattractive children less attention

Researchers found that unattractive children were less likely to be buckled into grocery carts and given more freedom to wander. The study suggests a parent's instinctive Darwinian response drives this behavior, with attractive children receiving more attention and affection.

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.

Gladstone investigator Steve Finkbeiner wins prestigious Lieberman Award

Steve Finkbeiner, a Gladstone investigator, has won the prestigious Lieberman Award for his groundbreaking research on Huntington's disease. The award includes $150,000 in funding to build on his findings using a custom-designed robotic microscope that tracks changes in cells over long periods.

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.

Secret loves, hidden lives?

A new study found that people with learning difficulties face discrimination, harassment, and bullying due to their sexuality. Despite these challenges, most participants desired social connections and romantic relationships.

Whooping cranes stabilize vision to find food

Researchers found that whooping cranes exhibit high-amplitude head movements to control their visual world while searching for food. By holding the head still more than 50% of the time, they permit close and stable examination of objects in view, allowing accurate detection, localization, and recognition of food items.

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.

Aboriginal Canadians at high risk for severe trauma

A population-based study found that Aboriginal Canadians are nearly four times as likely to sustain severe trauma as the reference population. Motor vehicle crashes were identified as a primary cause of traumatic injuries and death among this group.

'Motherwell's babies' study may yield up clues for adult diseases

Research investigates how an Atkins-type high meat, low carbohydrate diet in late pregnancy affects offspring's response to mental stress tests. The study, focusing on the 'Motherwell babies,' explores the long-term effects of maternal nutrition during pregnancy on adulthood health outcomes.

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.

Tissue engineering experts discuss orthopaedics applications

Researchers are exploring new technologies to regenerate bone, enhance ligament healing, produce tissue-engineered cartilage and improve bone healing with stem cells derived from muscle. These advances hold promise for treating devastating congenital or traumatic problems and preventing degenerative processes in the aging population.

Controversy in dyslipidemia guidelines

The current dyslipidemia guidelines have raised controversy due to concerns that they may lead to more people being screened and prescribed statin therapy. The debate centers around the data used in the guidelines and its implications for patient care.

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.

Can toddlers understand what's really going on?

Researchers from McGill University and the University of Illinois found that toddlers can understand when others have mistaken beliefs. The study presented infants with an actor who played with a toy and hid it in a box to verify their understanding of false beliefs.

Case finds dental patients agreeable to tobacco interventions

A study of 594 dental patients found that 71% were willing to receive information and assistance from their dentist to quit using tobacco products. The majority (71%) of patients who use tobacco are considering quitting or currently trying to quit, with overwhelming support for asking about tobacco usage and access to cessation programs.

Nanotech advance makes carbon nanotubes more useful

Scientists at UCSD successfully shape carbon nanotubes into sharp bends, enabling new applications in atomic force microscopy and fuel cells. The breakthrough could lead to more efficient and compact electronic devices.

Babies use their own names to help learn language

Research by Heather Bortfeld shows that babies can discern the beginnings and endings of words that follow their names, providing a foundation for learning language. By using familiar words like their names, babies can anchor their early learning of other word forms and tap into the process at an earliest stage possible.

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.

Little answers to world's biggest problems

A new study ranks top nanotech applications to aid poor, with energy storage and agriculture leading the list. The study's authors believe these technologies can contribute to UN Millennium Development Goals and improve living standards in developing countries.

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.

New material structure produces world's fastest transistor

The new device achieves a speed of 604 gigahertz, faster than previously thought possible with traditional transistor structures. The researchers' design improves current density and signal charging time by lowering the bandgap in selected areas.

Study indicates thirsty plants keep deserts' subsurface dry

A recent study found that desert vegetation can maintain dry conditions in the soil, minimizing leaching of wastes into underlying aquifers. This has important implications for radioactive and hazardous waste disposal, as well as water resources management.