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Science News Archive 2007 - Page 189


Page 189 of 203

Severe form of 'enlarged prostate' disease discovered

Scientists have identified a severe form of benign prostatic hyperplasia (BPH) tied to a gene called JM-27. A blood test detects high levels of this protein, indicating more severe symptoms. This discovery could lead to earlier diagnosis and targeted treatment for bladder-related complications.

SourceJohns Hopkins Medicine·JournalThe Journal of Urology·DateFeb 5, 2007

SCAI expert panel sets high standards for PCI without on-site cardiac surgical backup

The Society for Cardiovascular Angiography and Interventions recommends stringent quality standards for PCI in hospitals without on-site cardiac surgery. These standards aim to ensure patient safety and excellent clinical outcomes, including case volume limits and training of support personnel.

SourceSociety for Cardiovascular Angiography and Interventions·JournalCatheterization and Cardiovascular Interventions·DateFeb 5, 2007

Ancient rocks show how young Earth avoided becoming giant snowball

Scientists analyzed ancient rocks from Hudson Bay in Quebec to confirm that high concentrations of greenhouse gases could have sustained surface temperatures above freezing 3.75 billion years ago. The study suggests that carbon dioxide played a crucial role as the Earth's 'thermostat' to support life on the planet.

SourceUniversity of Chicago·JournalEarth and Planetary Science Letters·DateFeb 5, 2007
Apple iPhone 17 Pro

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

Scientists identify molecular cause for one form of deafness

Researchers have discovered that mutations in the espin protein can impair hearing by causing floppy bundles of protein filaments in hair cells. This structure change prevents the transmission of nerve impulses to the brain, leading to deafness. The findings offer a potential 'rescue' mechanism for this form of deafness.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalPhysical Review Letters·DateFeb 5, 2007

Beyond the DNA: Chemical signatures reveal genetic switches in the genome

Researchers have developed a novel method to identify and predict promoter and enhancer regions that switch on transcription, enabling large-scale functional annotation of 'enhancers'. The study uses the 'histone code' to distinguish between promoters and enhancer regions.

SourceLudwig Institute for Cancer Research·JournalNature Genetics·DateFeb 4, 2007

What makes a good leader -- the assertiveness quotient

A study by Daniel Ames and Francis Flynn found that assertiveness is the most common weakness among aspiring leaders, with 48% suggesting too much or too little. The researchers suggest that leaders who exhibit moderate assertiveness may be better able to balance their responses.

SourceAmerican Psychological Association·JournalJournal of Personality and Social Psychology·DateFeb 4, 2007
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.

Researchers build lasers for NASA climate studies

The researchers will build a two-color light-detection and ranging system (LIDAR) to measure aerosol concentrations up to several miles high. This device will help understand complex relations between aerosols, greenhouse gases, and global warming.

SourceMontana State University·DateFeb 2, 2007

Lipid plays big role in embryonic development

Researchers discovered that ceramide helps stem cells organize into primitive ectoderm, which further differentiates into embryo tissues. The lipid's presence is essential for cell polarity and differentiation.

SourceMedical College of Georgia at Augusta University·JournalJournal of Biological Chemistry·DateFeb 2, 2007
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.

UK-India success for University of Nottingham

The University of Nottingham has been awarded a £300,000 grant to collaborate with Indian researchers on a four-year project exploring mixture toxicity in living organisms. The project aims to develop a mathematical model predicting how organisms respond to chemical pollution.

SourceUniversity of Nottingham·DateFeb 2, 2007

Lessons learned from liver retransplantation

A 15-year study on liver retransplantation found positive trends in indications for surgery, fewer rejections and complications, and improved intensive care management. Therapeutic measures such as immunosuppressant dosage reduction and early blood transfusions contributed to better patient survival rates.

SourceWiley·JournalLiver Transplantation·DateFeb 2, 2007

Go team -- 2 kinds of teamwork improves care for chronic heart failure

Researchers from Indiana University found that active patient involvement during treatment of chronic heart failure, coupled with collaboration between healthcare teams, significantly improves quality of care. Lifestyle changes such as exercise, reducing salt intake, and managing stress are also crucial for longer survival rates.

SourceIndiana University·JournalMedical Care·DateFeb 2, 2007

Brain's reward circuit activity ebbs and flows with a woman's hormonal cycle

A study at NIMH found that brain reward circuit activity ebbs and flows with a woman's hormonal cycle. Women exhibited more active circuitry during the pre-ovulation phase dominated by estrogen compared to the post-ovulatory phase, suggesting links between hormone fluctuations and mood disorders.

SourceNIH/National Institute of Mental Health·JournalProceedings of the National Academy of Sciences·DateFeb 2, 2007
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.

Tiny 'gas-flow' sensor has industrial, environmental applications

Purdue University researchers have developed a new class of tiny sensors that can measure gas flow on the scale of micrometers and nanometers. These sensors could be used in environmental protection to measure the leakage of hydrocarbon fumes from fuel tanks and in pharmaceutical preservation to test packages for gas leaks.

SourcePurdue University·JournalJournal of Micromechanics and Microengineering·DateFeb 2, 2007

Physicists find way to 'see' extra dimensions

Researchers at University of Wisconsin-Madison devise approach to 'see' extra dimensions by deciphering cosmic energy released in the universe's violent birth. The method provides evidence for testing string theory's existence and predicts specific shapes for the six hidden dimensions.

SourceUniversity of Wisconsin-Madison·JournalPhysical Review Letters·DateFeb 2, 2007

Common blood pressure drug reduces progressive muscle degeneration in mice

Researchers found that losartan improves muscle regeneration and repair in a mouse model of Duchenne muscular dystrophy, a devastating disease characterized by rapid progression of muscle degeneration. The study also showed that losartan can attenuate the entire disease when treated over time.

SourceNIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases·JournalNature Medicine·DateFeb 2, 2007

Energy institute will put Illinois at forefront of farm bioenergy production

The University of Illinois at Urbana-Champaign will be a key partner in the new Energy Biosciences Institute, which aims to explore the potential benefits of using corn crop residues and other herbaceous perennials as fuel sources. Researchers hope to create a sustainable and efficient process for producing high-quality plant biomass.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·DateFeb 2, 2007
Meta Quest 3 512GB

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

Folded sediment unusual in Sumatran tsunami area

The study reveals that sediment folding may have contributed to the massive 2004 Sumatra tsunami. The unusual shape of the upper plate boundary, resembling a suspension bridge, created an area with multiple peaks and valleys that amplified water displacement when the plate snapped back.

SourcePenn State·JournalGeology·DateFeb 2, 2007

Changes in amino acids in the 1918 influenza virus cut transmission

Researchers found that modifying the 1918 flu virus's hemagglutinin receptor binding site reduced its ability to transmit in ferrets. The study suggests that understanding this molecular mechanism could lead to the development of novel drugs to stop influenza transmission and prevent epidemics.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalScience·DateFeb 1, 2007

Study finds flaws in cancer clinical trials

Researchers at Memorial Sloan-Kettering Cancer Center found that only nine of 70 Phase II studies clearly defined measures to judge experimental drug effectiveness. This limits the accuracy of testing new treatments for cancer patients.

SourceAmerican Association for Cancer Research·JournalClinical Cancer Research·DateFeb 1, 2007
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.

Artificial atoms make microwave photons countable

Using artificial atoms on a chip, Yale physicists have successfully detected and stored individual microwave photons, bringing quantum mechanics to a larger scale. This breakthrough enables the creation of new types of quantum machines that can exponentially speed up computations in cryptography, quantum physics, and chemistry.

SourceYale University·JournalNature·DateFeb 1, 2007

Sentry enzyme blocks two paths to Parkinson's disease

GST pi is a critical enzyme that stands at the crossroads of several biochemical pathways leading to Parkinson's disease. It prevents both externally provoked cell death and internally initiated suicide by blocking the formation of free radicals, which cause cell damage.

SourceSt. Jude Children's Research Hospital·JournalProceedings of the National Academy of Sciences·DateFeb 1, 2007
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.

Researchers predict future of federal climate change policy

Future US federal climate change policy is likely to include a national carbon dioxide cap, mandatory renewable energy portfolio standards, and increased vehicle fleet gasoline efficiency standards. These policies are already being implemented in the public and private sectors, with identifiable constituencies of well-networked actors.

SourceUniversity of New Hampshire·JournalReview of Policy Research·DateFeb 1, 2007

Articles on animal migration published in BioScience

Recent studies on animal migration have gained insights into the evolution of this complex phenomenon, yet much remains unknown. Advances in technology are helping scientists better understand the mechanisms behind migration, including the role of genetic correlations in determining future evolutionary changes.

SourceAmerican Institute of Biological Sciences·JournalBioScience·DateFeb 1, 2007

JCI table of contents: Feb. 1, 2007

Researchers found that an inhaled drug may provide a new therapeutic for asthma by inhibiting Th2 cell inflammatory responses. Additionally, hematopoietic stem cell transplantation enabled infused tumor-reactive T cells to expand and increase tumor regression in mice.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateFeb 1, 2007
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.

Longevity by a nose (or odorant receptor)

Fruit flies exposed to yeast paste odor did not live as long as calorie-restricted insects without the odor, suggesting that reduced perception plays a role in extending lifespan. The study found that flies with impaired sense of smell lived up to 57% longer and were more stress-resistant.

SourceBaylor College of Medicine·JournalScience·DateFeb 1, 2007

Obesity drug helps unlock clues about cancer

A new study has discovered a potential link between an approved obesity drug and cancer treatment. Researchers found that the drug Orlistat can block fatty acid synthase, an enzyme crucial for tumor cell growth, promoting cell death instead.

SourceAtrium Health Wake Forest Baptist·JournalCancer Research·DateFeb 1, 2007

New role in asthma for old drug

Researchers at Erasmus University found that inhaling iloprost, a pulmonary arterial hypertension treatment, inhibits the Th2 cell inflammatory response in mice with allergic asthma. This study suggests targeting dendritic cells via iloprost may provide a new treatment for individuals with asthma.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateFeb 1, 2007
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.

A new index for measuring liver fibrosis

A new study found that a series of simple blood tests can accurately diagnose liver fibrosis in patients with chronic hepatitis C. The FibroIndex was more accurate than two other indices and showed promise as a non-invasive alternative to liver biopsy.

SourceWiley·JournalHepatology·DateFeb 1, 2007

Find yields further insight into causes of Parkinson's disease

Researchers have developed a new model of Parkinson's disease in fruit flies, confirming the link between dopamine and a mutant form of the parkin protein. The study found that a single copy of the mutation was toxic to dopaminergic neurons, leading to motor dysfunction.

SourceUniversity of California - Los Angeles·DateFeb 1, 2007

Higher nitric oxide levels increase survival in ALI/ARDS trial

The study found that patients with higher nitric oxide levels had better survival rates, more ventilator-free days, and lower rates of organ failure. Lower tidal volume respiration was also associated with increased NO levels and improved outcomes.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateFeb 1, 2007

18 million men in the United States affected by erectile dysfunction

A study by Johns Hopkins Bloomberg School of Public Health reveals that 18% of American men experience erectile dysfunction, with age being a major risk factor. Lifestyle changes such as increased physical activity and disease prevention measures may also improve male sexual function.

SourceJohns Hopkins Bloomberg School of Public Health·DateFeb 1, 2007

Researchers find substantial wind resource off Mid-Atlantic coast

Researchers estimate that thousands of wind turbines could generate up to 330 gigawatts of average electrical power off the Mid-Atlantic coast, reducing carbon emissions by 68% and greenhouse gases by 57%. The study's findings suggest a significant potential for offshore wind energy in the region.

SourceUniversity of Delaware·JournalGeophysical Research Letters·DateFeb 1, 2007
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.

New forecasting tool could reduce drug development costs

Researchers developed a Bayesian network model to forecast the success of new drugs, reducing mean capitalized expenditures by an average of $283 million per successful new drug. More data sharing by the pharmaceutical industry could improve forecasting accuracy and benefit patients by eliminating unsafe investigational new drugs.

SourceBoston Children's Hospital·JournalNature Reviews Drug Discovery·DateFeb 1, 2007

Grafts against cancer

A new study has discovered a way to identify cells that will cause graft-versus-host disease (GVHD) in blood cancer patients. This breakthrough allows for more reliable testing of donor T cells and personalized medicine approaches, potentially saving thousands of lives.

SourceUniversity of Montreal·JournalPLOS Medicine·DateFeb 1, 2007

What does it mean to have a mind? Maybe more than you think

Researchers found that people perceive the minds of others along two distinct dimensions: agency (self-control, morality) and experience (feelings, sensations). This framework sheds light on moral and legal decisions and highlights the subjective nature of perceiving mental attributes in others.

SourceHarvard University·JournalScience·DateFeb 1, 2007

When lap dogs become attack dogs: UCLA study isolates triggers for DC press

A UCLA-led study examines 48 years of White House press conferences, finding that economic downturns and second-term effects trigger more aggressive questioning. The researchers also discovered that journalists become more restrained on foreign affairs but still grill presidents on domestic issues.

SourceUniversity of California - Los Angeles·JournalAmerican Sociological Review·DateFeb 1, 2007
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Neutron probe yields break in superconductor mystery

Researchers have made a major breakthrough in understanding the unconventional superconductor URu2Si2 by studying its electron movements using neutron probes. The study reveals that the wandering particles work out an unexpected accommodation in the spacing of their energy levels, leading to a more orderly and cooperative behavior.

SourceNational Institute of Standards and Technology (NIST)·JournalNature Physics·DateFeb 1, 2007

Scientists see DNA get 'sunburned' for the first time

Researchers at Ohio State University have discovered that the most common chemical reaction causing sunburn is triggered by a very short-lived excited state of DNA, contradicting previous beliefs. This finding has significant implications for understanding how UV damage leads to skin cancer and other diseases.

SourceOhio State University·JournalScience·DateFeb 1, 2007

Traveling in the right direction -- lessening our impact on the environment

A recent study found that individuals' annual travel is equivalent to 5.25 tonnes of carbon dioxide on average, with the top 20% of 'emitters' responsible for 61% of all travel emissions. High-income earners, particularly employed men, are among the largest contributors to climate change impact through their travel patterns.

SourceEconomic & Social Research Council·DateFeb 1, 2007

Gut research yields new anti-cancer approach

Researchers have discovered a new way to fight colorectal cancer by targeting the 'skeletons' of cancer cells, which enable them to reproduce and spread. High-dose PPARgamma inhibitors destroy cancer cell microtubules, reducing their ability to grow and metastasize.

SourceUniversity of Rochester Medical Center·JournalInternational Journal of Cancer·DateFeb 1, 2007
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.

U-M researchers identify stem cells in pancreatic cancer

Researchers identified a small number of cells in pancreatic cancer capable of fueling tumor growth, which are thought to be the cancer stem cells. These cells can replicate and produce new tumors, making them a crucial target for therapy.

SourceMichigan Medicine - University of Michigan·JournalCancer Research·DateFeb 1, 2007

Sea level on the rise -- in real and virtual worlds

Climate scientists reviewed observations of carbon dioxide, temperature, and sea level from 1990-2006 and found that actual changes closely followed projected scenarios. Sea levels have risen faster than previously estimated, with some uncertainties remaining about the contribution of ice-sheet melts.

SourceCSIRO Australia·JournalScience·DateFeb 1, 2007
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

New report reveals African-Americans may lack key nutrients for optimal health

A recent report by the National Dairy Council highlights the importance of dairy consumption among African Americans. The study found that African Americans in all age groups have lower average intakes of calcium, magnesium, and phosphorus, and consume fewer servings of dairy foods compared to non-African Americans.

SourceNational Dairy Council·JournalJournal of the American Dietetic Association·DateFeb 1, 2007