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Science News Archive February 2007


Page 2 of 16

Universities in £1.5M drive to cut cost of solar power

Researchers in Manchester and London are working on a £1.5m project to create more efficient solar cells using inexpensive materials and novel fabrication methods. The goal is to produce demonstration hybrid solar cells with the potential to be mass-produced and achieve an energy conversion efficiency of ten percent.

Milky Way black hole may be a colossal 'particle accelerator'

Astrophysicists discovered a mechanism that produces high-energy gamma rays from the Milky Way's black hole, accelerating protons to unprecedented speeds. The process creates high-energy gamma rays through collisions between accelerated protons and hydrogen gas.

Apple iPhone 17 Pro

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

Nanotech promises big things for poor -- but will promises be kept?

Nanotechnology has the potential to provide less-industrialized countries with powerful new tools for diagnosing and treating disease. The technology could revolutionize health care in developing countries by making treatments more readily available for diseases that claim millions of lives annually.

MIT bioengineer advances survival, promise of adult stem cells

Researchers have developed a technique to encourage survival and growth of adult stem cells, found in many tissues, which hold great promise for treating injuries and some diseases. The study's findings suggest that by manipulating the environment surrounding the cells, certain growth factors can protect them from pro-death signals.

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.

New research explores the role of ethnicity in breastfeeding peer counseling

A study found that focused support increased breastfeeding rates among Latina women, with those receiving peer counseling being 10-66 times more likely to nurse exclusively at 2 months postpartum. The research highlights the need for tailored interventions to address ethnic disparities in breastfeeding promotion.

Public welcomes workers with intellectual disabilities, Queen's poll finds

A Queen's University poll found that 65% of respondents believe workers with intellectual disabilities should work alongside those without ID, while 71.1% note a lack of job training programs as a major obstacle to workplace inclusion. The study suggests that public attitudes are not a barrier to keeping workers with ID in the workplace.

New guide to sharks and rays of Indonesia

A five-year survey of catches at local fish markets provided the first detailed description of Indonesia's shark and ray fauna. The Australian Centre for International Agricultural Research published a 330-page field guide, Economically Important Sharks and Rays of Indonesia, featuring over 20 new species.

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.

Brain works more chaotically than previously thought

The brain's information processing is more chaotic than previously thought, with neurons releasing chemical messengers along their entire length. This challenges traditional understanding of neuronal communication and may lead to new medical drug development.

MRI identifies 'hidden' fat that puts adolescents at risk for disease

A new study uses MRI to measure intra-abdominal fat, a type of fat that can predispose children to adult diseases like heart disease and diabetes. The study found strong correlations between single-slice MRI measurements and clinical measures, suggesting that this method could be useful in monitoring adolescents at risk.

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.

Cancer cells forming blood vessels send their copper to the edge

Researchers discovered that cancer cells forming blood vessels exhibit a distinct distribution of cellular copper, which may help explain how copper-reducing cancer therapy works. This finding has implications for understanding the regulation of metal ion content in metal-binding proteins and could lead to new cancer therapies.

New DNA study helps explain unique diversity among Melanesians

A new DNA study has identified significant genetic differences among Melanesian populations, tied to their island of origin and language spoken. The research, led by Temple University professor Jonathan Friedlaender, sheds light on the unique diversity of this region.

HPV infection common among females in US

A national study estimates that approximately 1 in 4 U.S. females between 14 and 59 years old may have HPV infection, with the highest prevalence among younger women. The study also found a significant trend for increasing HPV prevalence with age, followed by a decline through 59 years.

Benefits of more homework vary across nations, grades

A study found that benefits of increased homework vary widely across nations, grades, and quality of schools. In the US, there is a negative relationship between higher homework amounts and student achievement in elementary schools, but only a small benefit in middle schools.

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.

Unique tomatoes tops in disease-fighting antioxidants

Researchers discovered that eating spaghetti with sauce made from orange-colored Tangerine tomatoes increased levels of cis-lycopene, a beneficial compound, in participants' blood. The study found that the body absorbed more cis-lycopene from Tangerine tomatoes than from red tomatoes.

Brain maps online

Researchers at UC Davis have created digital brain atlases with high-resolution whole-brain images, enabling virtual microscopy for comparison of healthy brains with those affected by neurological diseases. The online platform allows users to explore and analyze brain data using free downloadable tools.

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.

Nectar is not a simple soft drink

Researchers discovered that plant nectar contains secondary compounds, including nicotine, which repel pollinators and attract 'nectar thieves'. This finding suggests that plants may produce nectar to increase genetic diversity by attracting more visitors despite the potential risk of poisoning insects.

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.

A first glimpse of the influenza replication machine

Scientists have produced the first 3-dimensional image of a key influenza protein, revealing insights into transmission between birds and humans. The study sheds light on how polymerase mutations contribute to avian flu's ability to jump species barriers.

Mistaken identity? When a white marlin may not always be a white marlin

A team of scientists has confirmed the existence of an enigmatic billfish species, the roundscale spearfish, which overlaps with the distribution of the white marlin. The discovery raises concerns about the true numbers of threatened white marlin populations and suggests that recent population assessments may have been overestimated.

Cholesterol in stroke patients exceeds national guidelines

A study of 1,040 stroke patients found that 27% had cholesterol levels higher than recommended by national guidelines. Despite this, only 7% were at their ideal level for preventing future strokes and heart disease, emphasizing the importance of regular testing and treatment.

MGH research award helps women establish scientific careers

The program provides competitive two-year grants to women junior researchers balancing family responsibilities with research demands. Recipients have remained at MGH, received academic promotions, and secured over $51 million in outside research funding.

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.

Fruit flies may pave way to new treatments for age-related heart disease

A collaborative study by Sanford Burnham Prebys and UC San Diego found that mutations in a molecular channel in fly hearts caused arrhythmias similar to those found in humans. The researchers believe that understanding the regulation of this channel could lead to new treatments for age-related heart disease.

Smoking may be a risk factor for tuberculosis

A meta-analysis of 24 studies found that smokers are 40-60% more likely to develop tuberculosis disease after infection, with a 73% increased risk of becoming infected. Smoking may also decrease immune response or damage airway cilia, increasing TB risk.

NSAIDs modulate biomarker panel for esophageal adenocarcinoma

Research suggests that nonsteroidal anti-inflammatory drugs (NSAIDs) may reduce the risk of developing esophageal adenocarcinoma in patients with Barrett's esophagus. The study found a significant protective effect in patients with multiple genetic abnormalities.

A climate-change amplifying mechanism

A feedback mechanism between North Atlantic and tropical hydrology of Central America amplifies the effects of climate change on oceanic circulation. This mechanism, highlighted by scientists at CEREGE1, shows that changes in oceanic circulation influence global water cycle patterns and climatic equator shifts.

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.

Smoking increases risk of TB infection, says new study

A recent study published in the Archives of Internal Medicine found that smoking significantly increases the risk of tuberculosis (TB) infection. Smokers have a 73% greater chance of becoming infected than non-smokers, and if infected, are 50% more likely to develop active TB disease.

Diesel exposure model reduces allergy risk assessment errors

Researchers have developed a new diesel exposure model that improves accuracy in assessing air pollution risks, particularly for children. The model takes into account complex factors such as elevation and traffic volume to create 'buffers' around specific sample sites.

Study of atomic movement may influence design of pharmaceuticals

Researchers at the University of Liverpool designed a unique crystal structure to capture atomic movement, which may impact future pharmaceutical designs. The study aims to improve chemical reaction control, enabling more environmentally friendly production methods.

Children with cancer risk fragile bones

Children with cancer are vulnerable to bone fragility, exacerbated by sedentary behaviors and treatment side effects. Early management through exercise and bisphosphonates can mitigate this risk.

Fluke 87V Industrial Digital Multimeter

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

Discovery of chemical profiles for infectious diarrhea

Academics have identified significant differences in chemical composition between healthy faeces and faeces from patients with infectious diarrhoea, such as Clostridium difficile. This breakthrough could lead to the development of a rapid diagnosis device, saving time and money.

Opening windows effective way of preventing transmission of TB

A study found that natural ventilation through opening windows can reduce airborne disease transmission, including TB, in resource-poor settings. The researchers compared this to mechanically-ventilated rooms and found that natural ventilation provided higher rates of ventilation, reducing the risk of infection.

New insights into high-temperature superconductors

Researchers found that pressure and oxygen isotopes have a similar effect on electronic properties of high-temperature superconductors, with vibrations in the lattice structure playing a crucial role in their superconductivity. The study reveals new insights into the behavior of these mysterious materials.

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.

Mellow in Europe, crazy in America

A UVM study reveals that reed canarygrass's invasive power comes from its history of multiple introductions and interbreeding with European strains, allowing it to adapt quickly to new conditions. This phenomenon has significant implications for the potential invasiveness of other horticultural and agricultural plants.

Patients with type 1 diabetes don't wake in response to hypoglycemia

A study of patients with type 1 diabetes and healthy individuals found that only one patient with T1DM woke up in response to hypoglycemia, compared to ten healthy control participants. The researchers also discovered that increases in plasma epinephrine concentration preceded polysomnographic signs of wakefulness.

The Natural Fat-Loss Pharmacy by Dr. Harry Preuss

The Natural Fat-Loss Pharmacy highlights safe and effective supplements like HCA, MCT, green tea extract, and chromium that can aid in weight loss. Dr. Preuss separates the good from the bad and lists natural weight-loss aids available on the market.

Is most published research really false?

Researchers debate the validity of published research findings, exploring the role of replication in confirming hypotheses. New models suggest that probabilities for accepting false research findings depend on benefits and harms, sparking discussion on acceptable levels of error.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Genes and genius: Researchers confirm association between gene and intelligence

A study led by Danielle M. Dick found that variations in the CHRM2 gene can influence performance IQ scores, which measure visual-motor coordination, spatial perception, and abstract problem-solving skills. The researchers used DNA samples from over 2,150 individuals and found cumulative effects of good versus bad genetic variations.

What do we know about asthma in Africa?

The prevalence of asthma and allergic diseases has significantly increased in Ghana between 1993 and 2003. According to a study, the prevalence of exercise-induced bronchospasm and atopy doubled over this period, posing concerns for public health in West Africa.

ASU embarks on innovative fuel cell project

Researchers at ASU are working on a new fuel cell technology designed for large-scale power generation, which can efficiently generate electrical power while minimizing heat management needs. The team aims to develop a membrane that operates at high temperatures, reducing size, weight, and costs.

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.

How T lymphocytes attack

Researchers used two-photon microscopy to visualize T lymphocyte infiltration into solid tumours in real-time. T lymphocytes target tumour cells by recognizing the antigen and binding with enzymes, ultimately leading to cell death.

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.

New imaging technique tracks traffic patterns of white blood cells

Researchers developed a new imaging technique to capture the movement of white blood cells in real-time, allowing for a better understanding of Sickle Cell disease. The technique, called digital multi-channel videomicroscopy, has the potential to aid investigations and develop therapeutics for this debilitating disease.

Gene therapy shows promise as treatment for diseased limbs

A Phase I clinical trial suggests gene therapy is a safe treatment option for patients with poor circulation and blocked blood vessels in their lower limbs. The study found that almost half of patients reported complete resolution of chronic pain and over a quarter experienced complete healing of chronic wounds after one year.