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Science News Archive March 2006


Page 6 of 18

New lipid molecule holds promise for gene therapy

Scientists at the University of California, Santa Barbara, have created a new lipid molecule that delivers therapeutic genes directly to cells, potentially helping inherited diseases and cancers. The novel molecule has a tree-shaped headgroup and displays superior DNA-delivery properties.

New light on muscle efficiency: It is not the power-plant

Research reveals that differences in overall muscle efficiency cannot be explained by variations in individual mitochondria's ability to convert food energy into ATP. Instead, the findings suggest that ATP usage within the muscle plays a crucial role in determining efficiency.

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.

Simple checklists could improve child protection

A systematic review found that structured forms and checklists can help healthcare professionals record child protection issues more effectively. Certain types of training also improved knowledge and attitudes towards child protection, boosting the speed of response to concerns.

New DNA 'fingerprinting' technique separates hemp from marijuana

A new DNA 'fingerprinting' technique separates hemp from marijuana by analyzing genetic markers. This method has the potential to distinguish marijuana varieties and aid in establishing origins of seized drugs, with implications for drug distribution networks and criminal defenses.

New strategies help depressed patients become symptom-free

The STAR*D study found that switching to a new medication and augmenting the initial SSRI were effective treatment options for depression. The study showed that all three medications switched to, despite having different mechanisms of action, appeared useful options for treating depression following failure on the first SSRI.

Drug effective for severe Alzheimer's disease

Researchers found that donepezil significantly improved cognitive function and daily activities in patients with severe Alzheimer's disease. The study, published in The Lancet, showed a 20% reduction in dementia symptoms and an increase in quality of life for patients on the treatment.

Apple iPhone 17 Pro

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

Cell barrier shows why bird flu not so easily spread among humans

A study published in Nature found that cells deep within the human respiratory system have surface molecules that allow the avian flu virus to enter and infect cells, but not easily transmit between humans. The discovery provides a possible explanation for why bird flu is rarely transmitted among humans.

Pitt researchers find 'switch' for brain's pleasure pathway

Pitt researchers identify critical brain area regulating dopamine function, which could explain disruptions in normal behaviors and psychiatric disorders like schizophrenia and drug addiction. The discovery provides new insights into the brain's reward system and its role in modulating goal-directed behavior.

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.

Beta carotene slows decline in lung power associated with ageing

Research found that beta carotene slows the decline in lung power, a critical indicator of lung function, associated with aging. The study showed that higher levels of beta carotene and vitamin E in the blood reduced the rate of decline in lung function, particularly in smokers.

Patient care dramatically improved using best practice

A breakthrough project in the Netherlands dramatically improved patient care for breast cancer patients by implementing structured best practices. The initiative reduced waiting times to under a week and increased pre-operative multidisciplinary consultations, leading to more clear-cut diagnoses and fewer unnecessary operations.

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.

Quality of life can improve in old age, claim researchers

Researchers from Imperial College London found that quality of life increases between ages 50-84, particularly through volunteering and social connections. Factors such as long-standing illness and financial difficulties reduce quality of life, while trusting relationships and safe living environments boost it.

Exercise reduces menopausal symptoms and improves quality of life

A 12-month supervised exercise program reduced severe menopausal symptoms by a quarter and improved quality of life in postmenopausal women. The study also found significant improvements in physical and psychological functioning, as well as positive state of mind, among the exercise group compared to those who did not participate.

Missing breast cancer genes may soon be discovered

The COSMIC database has expanded to include data on 538 genes and 124,367 tumours, highlighting the need for further research to uncover additional breast cancer susceptibility genes. Scientists believe that many somatic mutations are caused by a combination of faulty gene and environmental factors.

Carnegie scientists fine-tuning methods for Stardust analysis

Researchers are analyzing Stardust samples to study the structure and chemistry of cometary material, providing clues about the solar system's history. The team is using advanced spectroscopic techniques to identify organic compounds and isotopic signatures in the ancient grains.

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.

Male smokers 40 percent more likely to be impotent than non-smokers

A recent study of over 8,000 men found that smoking was significantly associated with an increased risk of erectile dysfunction. Those who smoked up to 20 cigarettes per day were 24% more likely to experience difficulties maintaining an erection, while those who smoked more than a pack a day were 39% more likely.

Typical pregnancy is now only 39 weeks

The typical pregnancy duration has decreased to 39 weeks, leading to a rise in late preterm births. Late preterm infants face increased risks of breathing problems, feeding difficulties, and reduced brain development compared to full-term babies.

MIT makes move toward vehicles that morph

MIT researchers have made a breakthrough in creating morphing vehicles by utilizing rechargeable batteries. The team's innovative approach involves using the expansion and contraction of solid compounds to actuate large-scale structures, allowing for seamless shape changes.

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.

Relic of life in that Martian meteorite? A fresh look

Scientists have found that macromolecular carbon in Martian meteorites is always associated with magnetite, a mineral catalyst for its formation. This association raises hopes that the meteorite's carbon complexes could be evidence of non-biological synthesis of organic molecules on Mars.

Scientists a step closer to protecting world's most important crop

Researchers at the University of Exeter have identified a single gene crucial to the rice-killing fungus's ability to infect plants. The discovery could lead to the development of effective chemicals to combat the devastating disease, which affects half of the world's population and kills enough rice to feed 60 million people annually.

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.

Infants begin learning language as early as 10 months researchers find

Researchers found that 10-month-old infants can learn two new words in a single session, pairing words with the object they find most interesting. This discovery suggests that babies are actively listening and learning language from birth, highlighting the importance of talking about their interests to aid language development.

MTBE contamination: A microbial approach for groundwater

A team of Rutgers University researchers has made a breakthrough in finding a microbial approach to clean up MTBE contaminated groundwater. By employing carbon isotope fractionation, the team can identify the key bacteria capable of breaking down MTBE and potentially speed up the process.

Karen Duff receives prestigious prize for Alzheimer's research

Karen Duff, a young British scientist, received the Potamkin Prize for her innovative work on developing transgenic mouse models of age-related human brain diseases. Her research has led to significant advancements in understanding Alzheimer's disease and identifying potential treatments.

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.

Cold case: Looking for life on Mars

Researchers are searching for signs of life on Mars by analyzing the distribution of a specific type of nitrogen in Martian rocks, soil, and water. They found that organisms leave behind unique nitrogen 'fingerprints' on rocks, which could be used to detect biosignatures of past or present life.

How does the brain know what the right hand is doing?

A recent study published in The Journal of Physiology reveals that the brain relies on outflow signals to predict limb movement, even when sensory inputs from receptors are blocked. This finding sheds light on how our brains learn to move accurately and provides insight into phantom limb sensations.

Workplace abuse trickles down

A study by Michelle K. Duffy, Christine A. Henle, and Lisa Schurer Lambert found that abusive supervision in the workplace is linked to employee anxiety and depression. The research suggests that improving supervisor fairness may be key to reducing hostility and aggression in the workplace.

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.

Climate change and the rise of atmospheric oxygen

Researchers analyze sulfur isotopes in rocks to track oxygen levels, revealing a raucous period of intense volcanic activity that pushed the atmosphere towards an oxygen-rich state. This breakthrough provides new insights into the emergence of oxygen on Earth and its impact on climate.

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.

Salt and dust help unravel past climate change

Researchers extracted a 3 km long ice core from Antarctica's plateau to study the Earth's climate over the last 740,000 years. The team found that as sea ice extent declined, salt levels rose due to brine expulsion, while dust levels increased in cold times, suggesting South America was drier or windier.

Keeping patients from falling through the medical-imaging cracks

A new automatic system at the Ann Arbor VA hospital kept eight patients with serious scan results from falling through the cracks, including five who had cancer. The system, which uses electronic tags to alert doctors to potential problems, was developed after a similar issue occurred at the institution.

Do plant species really exist? Why, yes, scientists say

Researchers at Indiana University found that plant species can be just as easily divided into categories as animal species, contrary to previous claims. The study also revealed that many bird and fish species successfully hybridize in the wild, while ferns are less likely to produce fertile hybrids.

Fluke 87V Industrial Digital Multimeter

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

Electrical stimulation boosts stroke recovery

A study at Oregon Health & Science University found that stroke patients who received electrical stimulation therapy showed significant improvement in hand mobility and strength compared to those receiving rehabilitation alone. The therapy, which induces neural plasticity, helps patients regain lost functions.

UC Davis study with mice links thimerosal with immune system dysfunction

A UC Davis study with mice found that even low levels of thimerosal can alter dendritic cell function and lead to abnormal immune responses. The study's findings suggest a link between thimerosal exposure and immune system dysfunction, potentially shedding light on the immunotoxic effects of this common preservative.

Scientists one step closer to cancer vaccine

Researchers at Karolinska Institutet have identified a short peptide molecule that can vaccinate and protect against the spread of tumours from different tissues, including melanoma, colon cancer, lymphoma, and fibrosarcoma. The study points towards new possible ways of developing a treatment for advanced tumour diseases.

Researchers seek answers to combat TB epidemic

TB researchers hope to find novel ways of killing the organism using a protective protein called heme oxygenase 1. The project aims to pinpoint the role of alcoholism in the global epidemic by studying HIV- and tuberculosis-infected patients in India.

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.

Polar neutrino observatory takes a big step forward

The IceCube project is a collaborative effort of over 30 scientific organizations, including the US National Science Foundation and more than a dozen US universities. The $272-million detector will use 4,200 light-sensing modules to sample high-energy neutrinos from space, excluding types like those from the sun.

New University of Toronto research a 'pore' excuse for engineering

Researchers at the University of Toronto developed a new material, periodic mesoporous organosilica (PMO), that acts as a better insulator for microelectronics. The PMO film would take up less room than conventional silica glass and allow components to shrink further, enabling smaller and more efficient devices.

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.