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Science News for July 31, 2006


Quicker, cleaner computers are in sight

Researchers are developing a new type of memory chip using magnetism instead of electricity, promising faster performance and longer lifespan. This spintronic memory can be written to quickly and won't wear out, making it ideal for reducing power hunger in computers.

SourceUniversity of Leeds·DateJul 31, 2006

A simple survey yields a cosmic conundrum

A recent survey of galaxies observed along the sightlines to quasars and gamma-ray bursts has revealed a striking inconsistency. Galaxies appear to be four times more common in the direction of gamma-ray bursts than in the direction of quasars, contradicting basic concepts of cosmology.

SourceUniversity of California - Santa Cruz·DateJul 31, 2006
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.

Debate continues on post-wildfire logging, forest regeneration

Two groups of researchers from Oregon State University and the USDA Forest Service exchange perspectives on post-wildfire salvage logging, forest regeneration, and fire risk. The OSU team questioned the methodology and conclusions of a previous study, while the response emphasizes the strength of the original design and findings.

SourceOregon State University·JournalScience·DateJul 31, 2006

Identifying Piwi's partners

Researchers have identified Piwi's partners in gene silencing pathways using small RNAs in Drosophila. This finding introduces a novel pathway of gene silencing, leveraging the association of Piwi with specific small RNAs called rasiRNAs.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateJul 31, 2006

Small-scale logging leads to clear-cutting in Brazilian Amazon

A team of scientists led by Greg Asner discovered a strong link between selective logging and clear-cutting in the Brazilian Amazon. They found that areas within 15 miles of major roads are more likely to be cleared, with 32% of logged areas cleared within four years.

SourceCarnegie Institution for Science·JournalProceedings of the National Academy of Sciences·DateJul 31, 2006
Apple iPhone 17 Pro

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

Penn researchers find role for microRNAs in angiogenesis

Researchers from the University of Pennsylvania School of Veterinary Medicine identified the role of microRNAs in promoting blood vessel growth, a process called angiogenesis. The findings suggest that these microRNAs might be targeted to slow down cancer cell growth.

SourceUniversity of Pennsylvania·JournalNature Genetics·DateJul 31, 2006

Paying physicians to recruit patients into trials: The ethical concerns

Recruitment incentives have grown due to competition among research sponsors, offering substantial finder's fees. This raises concerns about physician judgment, patient safety, and public trust in clinical research. The issues cannot be resolved by sanctioning individuals, but rather require broader institutional and regulatory reform.

SourcePLOS·JournalPLOS Medicine·DateJul 31, 2006

Super blackcurrants with boosted vitamin C

Researchers have successfully boosted the vitamin C levels in blackcurrants by altering starch deposits, which could lead to more nutritious fruit with improved taste. The study, funded by £1.2M, aims to accelerate the breeding of super blackcurrant bushes with enhanced health benefits.

SourceBiotechnology and Biological Sciences Research Council·DateJul 31, 2006

Gene discovery may shed light on kidney disease

Researchers at The Children's Hospital of Philadelphia identified a second gene linked to Alagille syndrome, a genetic developmental disease affecting multiple organs. Mutations in the NOTCH2 gene were found to cause kidney abnormalities in patients and families.

SourceChildren's Hospital of Philadelphia·JournalAmerican Journal of Human Genetics·DateJul 31, 2006
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.

Abnormal pattern of brain development in premature babies

A study of premature babies found that their brain development follows an abnormal pattern, with the surface area growing faster than the volume. The rate of growth is critical in predicting whether a child will experience delayed development. The more premature and male the baby, the slower the growth rate and higher the risk of delay.

SourcePLOS·JournalPLOS Medicine·DateJul 31, 2006

Tip sheet Annals of Internal Medicine, August 1, 2006

A study compares kidney transplant outcomes in the US and Spain, finding similar one-year and five-year graft survival rates for heart-beating and non-heart-beating donors. Living kidney donors also experience higher blood pressure years after donation, highlighting implications for informed consent and follow-up care.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateJul 31, 2006

Thrombosis in children with leukaemia

A recent study has found that thrombotic complications occur in 5.2% of children with leukaemia, with the highest risk during antileukaemic therapy induction phase. The researchers have identified several factors associated with an increased risk of thrombosis and explored the role of genetic determinants.

SourceCatholic University - Campobasso·JournalBlood·DateJul 31, 2006

2006 European Young Investigator Awards

The European Young Investigator Awards scheme attracts talented researchers from worldwide. This year's awardees are expected to contribute significantly to building the next generation of leading European researchers.

SourceEuropean Science Foundation·DateJul 31, 2006

Variation in CHEK2 gene may triple breast cancer risk

A study of over 9,000 Danish residents found that a specific variation in the CHEK2 gene triples a woman's risk of developing breast cancer in her lifetime. Women with this mutation are three times as likely to develop breast cancer as those without it.

SourceAmerican Society of Clinical Oncology·JournalJournal of Clinical Oncology·DateJul 31, 2006
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.

New, shorter TB treatments could advance TB control

A new study suggests that shorter TB treatment courses of just 2 months could reduce new cases and deaths by 13% and 19% respectively. This would free up resources to improve detection efforts and potentially lead to greater impact on TB control. Implementing such treatments earlier than planned in 2012 could yield even more benefits.

SourcePLOS·JournalPLOS Medicine·DateJul 31, 2006

Tetracycline plus teeth equal gray smile

A new tooth whitening procedure developed by Dr. Kim L. Capehart has been found to significantly lighten stubborn tetracycline stains, saving patients over $10,000 in dental restorative fees. The treatment involves a combination of prescription fluoride toothpaste, UV light, and customized trays.

SourceAcademy of General Dentistry·DateJul 31, 2006

Scripps research scientists test anti-obesity vaccine

A new anti-obesity vaccine has shown promising results by slowing down weight gain and reducing body fat in animal models. The vaccine, targeting the hormone ghrelin, allowed rats to maintain normal eating habits while gaining less weight and accumulating less fat.

SourceScripps Research Institute·JournalProceedings of the National Academy of Sciences·DateJul 31, 2006

MicroRNA processing and cancer

Drosha activity plays a fundamental regulatory step in microRNA processing. Blocking this enzyme can suppress miRNA production in cancer cells. This discovery may lead to novel therapeutic strategies for treating cancer by understanding the molecular events of carcinogenesis.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateJul 31, 2006
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.

Pinning down a cancer threesome

Researchers discovered a cancer triad involving Ras, c-myc, and p21 genes. Mice lacking the c-myc gene showed resistance to skin cancer, while mice with both missing genes regained sensitivity to mutated Ras. This study provides new insights into epithelial tumor development.

SourceEcole Polytechnique Fédérale de Lausanne·JournalGenes & Development·DateJul 31, 2006

Study shows hope for ridding lakes of clawed invader

Researchers at University of Wisconsin-Madison suggest a double whammy of intensive trapping and predator fish manipulation may rid lakes of the invasive species, restoring ecosystem balance. The two-pronged attack has shown promising results in reducing rusty crayfish populations on Sparkling Lake.

SourceUniversity of Wisconsin-Madison·DateJul 31, 2006

Personal protective systems increasingly important for health care workers

Recent studies highlight the importance of effective personal protective equipment for healthcare workers in preventing respiratory infections. The articles discuss various personal protective systems and their effectiveness in reducing contamination and infection rates.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJul 31, 2006

Teens and smoking: Why cessation interventions should start after the first puff

A study found that symptoms of nicotine dependence can take hold before regular smoking in some cases. This information is crucial for developing effective intervention programs for young smokers. Experts emphasize the need for stronger public health efforts to prevent youth from starting smoking in the first place.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJul 31, 2006

Different genes may cause autism in boys and girls

Researchers discovered that different genes may be responsible for causing autism in boys than in girls, with varying degrees of severity. The study also found evidence for multiple genetic subtypes of autism, including male versus female and early versus late onset forms.

SourceUniversity of Washington·JournalMolecular Psychiatry·DateJul 31, 2006
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 stem cell research grants announced

The Tri-Institutional Stem Cell Initiative has approved $6.7 million in funding for 17 stem cell research projects, exploring basic biology and therapeutic potential of human and model organism-derived stem cells. The grants support collaborative research across three institutions, including Memorial Sloan-Kettering Cancer Center.

SourceMemorial Sloan Kettering Cancer Center·DateJul 31, 2006

Researchers develop blood test to detect lung cancer

Researchers at the University of Kentucky have developed a blood test to detect lung cancer in early stages, showing 90% accuracy in predicting non-small-cell lung cancer. The test identifies the body's immune response to tumors and could become the first blood test to predict cancer since the PSA test was introduced.

SourceUniversity of Kentucky·JournalJournal of Thoracic Oncology·DateJul 31, 2006

Treating medically unexplained symptoms

A study found that patients with somatization syndrome incorrectly remember the likelihood of medical explanations for their symptoms. Doctors can reduce this bias by asking patients for summaries about what they've been told, benefiting both patients and the healthcare system.

SourcePLOS·JournalPLOS Medicine·DateJul 31, 2006
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.

Shorter tuberculosis therapies could lead to substantial reductions in cases and deaths

A new study found that shorter tuberculosis therapies could produce dramatic benefits at the population level by reducing transmission and improving patient outcomes. The research suggests that a two-month regimen could double or triple current rates of decline in new cases and deaths, leading to total reductions of up to 40%.

SourceHarvard T.H. Chan School of Public Health·JournalPLOS Medicine·DateJul 31, 2006

Ocean microbe census discovers diverse world of rare bacteria

Scientists discover 20,000+ kinds of rare bacteria in 1 liter of seawater using new DNA sequencing tools, challenging previous estimates of marine microbial diversity. The 'rare biosphere' plays an important role in ecological processes and evolutionary history.

SourceCensus of Marine Life·JournalProceedings of the National Academy of Sciences·DateJul 31, 2006

U of MN uses robotic surgery techniques in cardiac cell therapy research

Using minimally invasive robotic surgery, researchers successfully transplanted stem cells into damaged pig hearts, showing improved function and cell engraftment. The technique offers several benefits for patients with heart failure, including reduced risk and less time under anesthesia.

SourceUniversity of Minnesota·JournalJournal of Thoracic and Cardiovascular Surgery·DateJul 31, 2006

Health-care workers' SARS protective clothing systems

A Queen's University study compares two recommended protective clothing systems for health-care workers and found that one leaves workers prone to contamination at their forearms, wrists, hands, and necks. The more elaborate ensemble offers superior protection but is time-consuming to don and remove without errors.

SourceQueen's University·JournalCanadian Medical Association Journal·DateJul 31, 2006
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.

Genome circularization and RNA virus replication

A novel mechanism of dengue virus replication has been discovered, involving the circularization of its genome. This process allows the viral RNA polymerase to interact with a distant site on the genome, initiating replication. The study's findings suggest a widespread strategy for viral RNA replication.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateJul 31, 2006

Radioactive crystals help identify and date ore deposits

Monazite crystals contain thorium and can be used to date rocks altered by high-temperature fluids. In a new study, researchers found that monazite dissolves readily in hydrothermal fluids, resetting its clock and allowing for accurate dating of affected areas.

SourceVanderbilt University·JournalGeology·DateJul 31, 2006