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Science News for February 25, 2008


Scientists unravel the genetic coding of the pea

Researchers have created a genetic reference collection of mutant Pisum sativum plants, enabling the investigation of essential genes using TILLING (Targeting Induced Local Lesions IN Genomes) technique. This new tool has major benefits for crop breeders worldwide, providing an alternative to Agrobacterium-based techniques.

SourceBMC (BioMed Central)·JournalGenome Biology·DateFeb 25, 2008

Attack of the invasive garden ants

Research reveals invasive garden ants have already established widely in Europe, with potential for further infestations. The ants' dispersal strategy and originators were found to be limited, suggesting many more infestations may remain undiscovered.

SourceBMC (BioMed Central)·JournalBMC Biology·DateFeb 25, 2008
Apple iPhone 17 Pro

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

How the atmospheres of Mars and Venus are affected by carbon monoxide

Researchers have found that electrons lose energy to carbon monoxide faster than to carbon dioxide at higher atmospheric levels on Mars and Venus. This discovery contributes to modeling techniques used for Earth's atmosphere, providing opportunities for validation and testing.

SourceBMC (BioMed Central)·JournalPMC Physics B·DateFeb 25, 2008

LA BioMed study finds hormone therapy increases frequency of abnormal mammograms, breast biopsies

A recent study published in Archives of Internal Medicine found that combined hormone therapy significantly increases the risk of abnormal mammograms and breast biopsies, compromising their diagnostic performance. The research involved 16,608 post-menopausal women and revealed a four percent greater risk of mammogram abnormalities afte...

SourceLA BioMed·JournalArchives of Internal Medicine·DateFeb 25, 2008

Rats on islands disrupt ecosystems from land to sea, researchers find

A new study by UC Santa Cruz researchers found that rats on islands in the Aleutian Archipelago dramatically alter the intertidal zone, reducing seaweed and increasing snails, barnacles, and other invertebrates. The presence of rats also leads to a trophic cascade, resulting in reduced seabird populations and altered marine ecosystems.

SourceUniversity of California - Santa Cruz·JournalProceedings of the National Academy of Sciences·DateFeb 25, 2008

First global malaria map in decades shows reduced risk

A global malaria map reveals a significant reduction in risk, with 1 billion people under lower infection rates. The map, produced by the Malaria Atlas Project, provides critical data for targeted control measures and potential elimination efforts.

SourceUniversity of Florida·JournalPublication Library and Information Science·DateFeb 25, 2008
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.

Iowa State researchers help piece together the corn genome's first draft

Researchers at Iowa State University contributed to the draft sequence of the corn genome, providing valuable data for plant scientists to improve crops. The genome's complexity, with 2.5 billion base pairs and repetitive code, was overcome using advanced software technology, enabling faster assembly and analysis.

SourceIowa State University·DateFeb 25, 2008

About one-quarter of women with HIV want to become pregnant

Research suggests that about one in four women with HIV expect pregnancy and motherhood, with younger women more likely to make this choice. The study highlights the need for clinicians to discuss pregnancy options with HIV-positive women of childbearing age.

SourceOhio State University·JournalAIDS and Behavior·DateFeb 25, 2008

Study examines long-term outcomes following blood clots

A study examining long-term outcomes following blood clots found that patients with pulmonary embolism are at higher risk of experiencing recurrent clotting, major bleeding episodes, or death. The research also highlights the need for better anticoagulation strategies to reduce complications in the community setting.

SourceJAMA Network·JournalArchives of Internal Medicine·DateFeb 25, 2008

Royals weren't only builders of Maya temples, archaeologist finds

Recent discoveries at Yalbac, a Maya center in Belize, suggest that different groups, including nobles and commoners, built temples. The archaeologist's findings indicate that non-royals had the freedom to choose which temples to worship in and support.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalLatin American Antiquity·DateFeb 25, 2008

Silica smart bombs deliver knock-out to bacteria

Researchers at UNC Chapel Hill have created silica nanoparticles that store and release nitric oxide to kill bacteria effectively. This approach avoids the issue of controlling NO release with small molecules, which can be toxic to healthy cells.

SourceUniversity of North Carolina at Chapel Hill·JournalJournal of the American Chemical Society·DateFeb 25, 2008
Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Who benefits from antidepressants? US health inequities

A new study published in PLoS Medicine suggests that antidepressants only provide clinically significant benefits for a small group of severely depressed patients. However, even among these patients, the improvement is not very great, and depressed people can still improve without chemical treatments.

SourcePLOS·JournalPLOS Medicine·DateFeb 25, 2008

2 oxygenation events in ancient oceans sparked spread of complex life

Two oxygenation events in ancient oceans between 635 and 551 million years ago led to the increase and spread of complex life, including animals. This finding supports the growing view that life and environment co-evolved during this tumultuous period of Earth history.

SourceVirginia Tech·JournalProceedings of the National Academy of Sciences·DateFeb 25, 2008

America's 50 best hospitals 2008 released by HealthGrades

The 2008 HealthGrades America's 50 Best Hospitals list identifies top-performing facilities with superior patient outcomes, including an average 27% lower mortality rate compared to all other US hospitals. These elite hospitals demonstrate consistent quality care across multiple procedures and diagnoses.

SourceHealthGrades·DateFeb 25, 2008
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.

We are what we drink

Researchers create hair analysis method to track past movements of suspects or unidentified murder victims based on hydrogen and oxygen isotope levels. The technique helps identify general geographic areas where individuals drank water, providing a valuable lead for law enforcement.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateFeb 25, 2008

When free trade was fair trade

A new book by Professor Frank Trentmann shows that Free Trade was once a popular movement in Britain, promoting citizenship, justice, and democracy. It argues that consumerism did not necessarily make people apathetic, but rather mobilized them politically.

SourceEconomic & Social Research Council·DateFeb 25, 2008

STOP terrorism software

Researchers at University of Maryland's Institute for Advanced Computer Studies create SOMA Terror Organization Portal (STOP) to analyze and forecast terrorist organization behavior. The technology allows analysts to query learned rules, network with other experts, and test theories using data-driven forecasting capabilities.

SourceUniversity of Maryland·DateFeb 25, 2008

10-year trends in heart failure

A new study from Duke University Medical Center found that heart failure incidence declined among the very elderly, while overall cases rose due to an aging population. The study examined Medicare beneficiaries' claims between 1994 and 2003 and found a decline in heart failure rates among those aged 80-84 years old.

SourceDuke University Medical Center·JournalArchives of Internal Medicine·DateFeb 25, 2008
Fluke 87V Industrial Digital Multimeter

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

Krill discovered living in the Antarctic abyss

Scientists have discovered Antarctic krill thriving in deep waters, down to 3000 meters, contrary to earlier assumptions about their surface-dwelling nature. This finding sheds light on the complex behavior of marine organisms and highlights the importance of exploring the deep sea to understand our planet.

SourceBritish Antarctic Survey·JournalCurrent Biology·DateFeb 25, 2008

Scientists identify proteins that help bacteria put up a fight

Researchers at Ohio State University identified two proteins, MprF1 and MprF2, that contribute to bacterial resistance by altering the electrical charge of cell membranes. This finding could lead to the development of new drugs targeting bacterial resistance at its cellular source.

SourceOhio State University·JournalProceedings of the National Academy of Sciences·DateFeb 25, 2008

Anti-HIV gel proven safe, tolerable for women

A Phase II study found that the tenofovir gel was favorably self-applied and well-tolerated by HIV-negative women, with 80% following instructions to use the gel after sex. The researchers plan to proceed with larger studies to determine if the gel can prevent HIV infection.

SourceUniversity of Alabama at Birmingham·DateFeb 25, 2008

Krauss awarded $1.2 million to document endangered languages

A team of linguists, led by Professor Michael Krauss, will document 11 endangered languages in Alaska using a $1.2 million grant from the National Science Foundation. The project aims to preserve the Atuuan dialect, Southern Tsimshian, and other critically endangered languages.

SourceUniversity of Alaska Fairbanks·DateFeb 25, 2008
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.

Yale scientist honored for academic innovation and leadership

Erin Lavik, an assistant professor of biomedical engineering at Yale University, was recognized as one of the Connecticut Technology Council's 2008 Women of Innovation. Her research focuses on developing new therapeutic approaches for spinal cord injury and retinal degeneration.

SourceYale University·DateFeb 25, 2008

Hormone therapy increases frequency of abnormal mammograms, breast biopsies

A study of post-menopausal women found that hormone therapy increased the risk of abnormal mammograms and breast biopsies, while also decreasing the effectiveness of these methods for detecting breast cancer. The therapy may delay diagnosis and increase breast density, which can lead to a higher risk of breast cancer.

SourceJAMA Network·JournalArchives of Internal Medicine·DateFeb 25, 2008

Washington University unveils draft sequence of corn genome

The completed draft sequence of the corn genome will enable researchers to accurately and efficiently probe the genetic blueprint for the corn plant. Scientists can now look for ways to improve breeding, increase crop yields, and resistance to drought and disease.

SourceWashington University in St. Louis·DateFeb 25, 2008

Many stroke, heart attack patients may not benefit from aspirin

Researchers at the University at Buffalo found that up to 20% of patients taking aspirin for stroke and heart attack prevention do not respond to the medication, leading to increased risk of clinical failure. The study also identified factors associated with aspirin resistance, including younger age and underlying vascular disease.

SourceUniversity at Buffalo·JournalThe Journal of Clinical Pharmacology·DateFeb 25, 2008
Celestron NexStar 8SE Computerized Telescope

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

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.

5th annual Keys bonefish population census results announced

The 5th annual Keys bonefish population census has shown a fairly steady population of approximately 364,000 bonefish, indicating reliable research methods. The study also highlights the importance of understanding the bonefish population for environmental conservation and sustainable tourism in Florida.

SourceUniversity of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science·DateFeb 25, 2008

Blood testing for mood disorders

A new approach identifies five genes involved in myelination and six genes involved in growth factor signaling as potential biomarkers for high and low mood states. The study suggests that blood biomarkers may offer an informative window into brain functioning and disease state.

SourceMolecular Psychiatry·JournalMolecular Psychiatry·DateFeb 25, 2008

First malaria map in 40 years shows extent of disease burden

A new global malaria map highlights the 2.37 billion people at risk from Plasmodium falciparum, with almost one billion in areas where the risk of infection is extremely low. The map aims to help researchers and funding agencies allocate resources more effectively by understanding the relative risk affecting different regions.

SourceWellcome Trust·JournalPLOS Medicine·DateFeb 25, 2008

Hebrew SeniorLife researcher finds

A comprehensive study published in Archives of Internal Medicine reveals that nearly 70% of Americans with dementia receive antibiotic medications, particularly in the final stages of their disease. The researchers warn that this practice poses a significant public health risk due to the emergence of antimicrobial resistance.

SourceHebrew SeniorLife Hinda and Arthur Marcus Institute for Aging Research·JournalArchives of Internal Medicine·DateFeb 25, 2008
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.

Mechanism of blood clot elasticity revealed in high definition

A new study has revealed in high definition how a blood protein gives blood clots their elasticity. Fibrinogen molecules form elastic fibers that seal the vessel, with cells like platelets filling the gaps. The protein's flexibility can be enhanced or altered by changing calcium levels or pH.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalStructure·DateFeb 25, 2008

Media highlights in the March 1 issue of Biophysical Journal

Researchers at University of California and University of Virginia develop novel technique to quantify molecular concentrations and aggregation states in real-time. This new method, N and B analysis, enables fast and spatially resolved imaging of protein interactions in complex cellular processes.

SourceBiophysical Society·JournalBiophysical Journal·DateFeb 25, 2008

Autism's origins: Mother's antibody production may affect fetal brain

A recent study published in the Journal of Neuroimmunology found that mothers of autistic children may produce antibodies against their fetuses' brain tissue, which can cause changes leading to autism. The study suggests an association between maternal antibody production and developmental regression in children with autism.

SourceJohns Hopkins Medicine·JournalJournal of Neuroimmunology·DateFeb 25, 2008
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.

Lemurs' evolutionary history may shed light on our own

Researchers develop phylogenomic toolkit to analyze lemur genomes, confirming a single ancestral species for the diverse array of lemurs. The study provides insights into primate evolution and highlights the importance of Madagascar as a biodiversity hotspot.

SourceDuke University·JournalGenome Research·DateFeb 25, 2008

Global malaria map

A global malaria risk map has been released, revealing high-risk areas and providing estimates of people living in low-risk zones. The map identifies regions where existing control strategies can be used to eliminate P. falciparum transmission, potentially reducing deaths in sub-Saharan Africa.

SourcePLOS·JournalPLOS Medicine·DateFeb 25, 2008

More elderly Americans are living with heart failure

The number of elderly individuals newly diagnosed with heart failure has declined, but those already living with the condition have increased steadily since 1994. This study found a significant economic burden on Medicare due to an aging population.

SourceJAMA Network·JournalArchives of Internal Medicine·DateFeb 25, 2008

Iowa middle school wins IEEE-USA National Engineering Award

Harding Middle School of Cedar Rapids, Iowa, won the IEEE-USA Best Communications System Award for its innovative 'xMax' technology, providing fast and non-line of sight connectivity. The students also developed a comprehensive 'Smart Home Programming' system to control their city's infrastructure.

SourceIEEE-USA·DateFeb 25, 2008
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.

Honey bee invaders exploit the genetic resources of their predecessors

A study found that honey bees invading new areas benefit from the genetic endowment of their predecessors, with functional genes from European bees providing an advantage. This discovery sheds light on the evolutionary mechanism behind the expansion of honey bees into temperate regions and their ability to thrive in harsh winter condit...

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateFeb 25, 2008

Butterfly fish 'may face extinction'

Scientists warn that butterflyfish, such as the Chevroned Butterflyfish, are at risk of extinction due to their specialized feeding habits. The coral reefs' decline is threatening these fish's survival as they can only eat one type of coral, leading to a high risk of extinction.

SourceARC Centre of Excellence for Coral Reef Studies·JournalBehavioral Ecology and Sociobiology·DateFeb 25, 2008

Engineers demonstrate a new type of optical tweezer

Engineers at Harvard University have developed a novel optical tweezer that can perform calibrated force measurements with high precision. The device, consisting of a Fresnel Zone Plate fabricated on a glass slide, has the potential to revolutionize biological and microfluidic applications.

SourceHarvard University·JournalApplied Physics Letters·DateFeb 25, 2008