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Science News Archive 2007


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.

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.

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.

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.

Apple iPhone 17 Pro

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

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.

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.

Bones in motion: Brown scientists to create new 3-D X-ray system

The new CTX system will enable doctors and scientists to see inside living humans and animals, tracking 3-D skeletal movements with precision. This technology has applications for basic and applied research, including biomechanics, orthopedic surgeries, and injury treatments.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Meta Quest 3 512GB

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

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.

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.

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.

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.

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.

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.

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.

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.

Celestron NexStar 8SE Computerized Telescope

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

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.

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.

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.

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.