A study published in the Journal of Thoracic and Cardiovascular Surgery found that lung volume reduction surgery (LVRS) improves breathing capacity by over 50% in select emphysema patients. After five years, patients showed significant improvements in lung function and quality-of-life scores, with an estimated 60% survival rate.
Researchers have identified nearly 900 square miles of forest in China's Qinling Mountains that could support giant pandas. The area includes five unprotected core habitats and two linkage zones that could connect isolated populations.
Researchers found that removing cows from riparian habitats in the arid southwest increased vegetation density by 4-6 times and boosted bird populations, including species of special concern. The study suggests that restoring these areas can have profound benefits for breeding birds in the region.
Researchers have found evidence of high-speed winds blowing copious amounts of gas from the cores of quasar galaxies, powered by black holes. The winds may regulate black hole growth and create new stars, with a wind transporting substantial amounts of carbon, oxygen, and iron into the interstellar medium.
A study by researchers at the University of Guelph and the University of Wisconsin found that rock climbing significantly reduces snail diversity and abundance on the Niagara Escarpment. The team analyzed soil samples from climbed and unclimbed sections of the cliffs, discovering a stark difference in species numbers and populations.
The study found that despite an increase in the number of trauma centers, many communities still lack access to adequate trauma care, particularly in rural areas. The inventory revealed a significant disparity in the distribution of trauma centers across the country, with level I and II centers concentrated in metropolitan areas.
Researchers at Carnegie Mellon University have developed polymeric brushes with gradient compositional densities, allowing materials to alter their response to environmental changes. These structures can be used in applications such as artificial skin, wound healing, and coatings that provide a barrier against corrosive substances.
Researchers used an electrostatic field to control the self-assembly of fine granular material, creating regularly spaced arrays and complex patterns. The ability to manipulate these patterns could lead to new materials with unique properties.
A study found that road improvement leads to significant increases in non-native plant cover, favoring invasive species. Cheatgrass and other weeds spread more along paved roads than primitive roads, converting natural habitat to roadside habitats.
Researchers found a significant association between drops in blood pressure and mortality in patients who received protamine after bypass surgery. The study, conducted at Duke University Medical Center, suggests that even small blood pressure changes may be associated with increased risk of complications.
Researchers found that bacterial polymers, similar to hair, play a crucial role in adhesion. The discovery opens up possibilities for controlling bacterial behavior and improving methods for cleaning groundwater and preventing medical problems.
Climate change is affecting the abundance and diversity of migratory birds, as warmer winters increase competition for resources. Analysis of bird census and climate data in central Europe found a decrease in long-distance migratory bird species, with some species breeding earlier.
Researchers found that catnip oil effectively deters termite tunneling, but its toxicity and cost limit its practical use. The study suggests a potential future for catnip oil as a natural termite control method.
The IR-4 project supports research and development of natural pest control tools for specialty crops. The program aims to provide effective alternatives to traditional pesticides, benefiting farmers, homeowners, and consumers.
Researchers used advanced analytical technique to study extinct plant species Asteroxylon, finding evidence of two structural biopolymers in its cell wall. This discovery suggests that the plant had the capacity to biosynthesize lignin, a key factor in plant colonization and evolution.
Scientists have identified a new brain region, the Edinger-Westphal nucleus, involved in alcohol craving. Urocortin levels in this region correspond with an animal's desire to drink alcohol, suggesting that reducing urocortin may help reduce alcohol craving.
The discovery reveals free water, loosely bound water, and tightly bound water, each influencing the process's speed and efficiency. The findings have significant implications for fuel cell development and potential improvements in hydrogen production.
Researchers have developed a new type of biofuel cell that runs off of alcohol and enzymes, potentially replacing rechargeable batteries. The cells can be charged instantly with a few milliliters of alcohol and may last up to a month without recharging.
A new study by McGill University found that redheaded women respond better to a painkilling drug due to a genetic variation in the Mc1r gene. This gene is associated with pigmentation and variants cause red hair and fair skin, leading to a heightened response to kappa-specific analgesics.
Dordick and Sroga use hybrid proteins to manipulate linear DNA strands into unusual shapes, including three-dimensional cubes. These bio-inspired nanostructures can spontaneously assemble, saving researchers time and effort.
A Phase III study of Raptiva found that 27% of patients experienced a 75% or greater Psoriasis Area and Severity Index (PASI) score improvement after 12 weeks of therapy. Patients also showed rapid onset of effects on quality of life measurements, providing further support for Raptiva as a potential treatment option.
Researchers at Oregon State University have developed the world's first transparent transistor, made from a common compound that filters out ultraviolet light. The discovery has significant potential for various industries, including consumer electronics, transportation, business, and the military.
A recent study published in Arthritis Research & Therapy found that smoking significantly increases the risk of developing rheumatoid arthritis in men. However, female smokers do not face a higher risk, contrary to previous assumptions. The study suggests pre-menopausal women may block the link between smoking and RA development.
A study of over 339 patients found that 77% of those continuing Raptiva therapy had a PASI 50 score and 51% achieved a PASI 75 score. Long-term treatment showed improved response rates, with 22% achieving a 90% or greater improvement in their PSASI score.
A new Composite Physiologic Index (CPI) effectively tracks pulmonary fibrosis in patients and provides a more accurate prognostic indicator for interstitial pneumonia. Additionally, researchers explore the potential of stem cells to treat acute lung injury and its severe form, ARDS.
Researchers found that a small region of tissue at the front edge of what in humans would be the upper lip controls development of the upper half of the face. Facial tissues remain responsive to their environment for about nine weeks, or through most of the first trimester.
Engineers are using chemical force microscopy to produce detailed information about adhesion between single-walled carbon nanotubes and molecules of candidate polymers. The researchers aim to find the strongest interaction, which will give them the best composite material for lightweight applications.
Researchers have developed a prototype device that can cool solid steel in just two minutes, outperforming conventional refrigerators. The innovative technology uses superlattices to achieve unprecedented cooling efficiency, paving the way for CFC-free and reliable electronic heat pump systems.
Researchers found that progenitor cells from the bone marrow contribute to atherosclerosis by seeding into plaque formations, and that these cells can also help stabilize vulnerable plaques. The study opens up new possibilities for preventing heart attacks.
Scientists are studying the impact of human activities on water quality in the Brush Creek watershed. Geophysicists have discovered small earthquakes in northeastern Kansas related to movements of the Earth's crust. Additionally, researchers are analyzing how irrigation affects summertime climate in the High Plains.
Researchers have found that scopolamine and donezepil may be effective in treating nerve agent toxicity by blocking acetylcholine levels. These findings could provide a protective effect against nerve agents like sarin and VX, which cause seizures and death.
Researchers at Los Alamos National Laboratory present a new technology that can practically erase mercury from laboratories, reducing environmental and health hazards. The approach involves replacing mercury-containing devices with alternative instruments, which are less expensive and safer to use.
Researchers found low-dose exposure to permethrin triggered a process with early onset and persistent effects, while high-level exposures had delayed effects. The study suggests that genetic predisposition may increase the risk of damage from pesticide exposure.
Researchers at Virginia Tech have designed a new class of molecules that can bind to and stop replication of DNA when triggered by light. The complex molecules, developed by Professor Karen Brewer's group, have demonstrated the ability to kill cells in the presence of light.
A new gene, Otopetrin 1, has been identified as contributing to the loss of balance. The gene helps regulate otoconia, which detect gravity and maintain balance. Mutations in this gene can lead to balance disorders, but understanding its development may help stimulate otoconia regeneration.
Researchers have developed a new vegetable oil that can provide performance-enhancing benefits to car engines, improving stability at both hot and cold temperatures. The biodegradable oil could reduce the country's dependence on foreign oil and minimize environmental harm.
Researchers studied encrustation on fossilized shells to gain insights into ancient sea ecosystems. The analysis found that epibionts preferentially colonize brachiopod shells, providing clues about the evolution of these organisms.
A study by the Economic & Social Research Council found that older men prefer to avoid groups geared towards older women, fearing they will be seen as giving up. Efforts must be made to make day centres more attractive to this demographic to address their unique needs.
A study by Johns Hopkins Bloomberg School of Public Health reveals that Pakistani and Afghan drug users are at high risk of HIV due to limited knowledge and risky behaviors. The research highlights the need for interventions such as needle exchange programs and drug treatments to prevent blood-borne infections.
Researchers at Cornell University have developed a method to incorporate iron oxide particles into porous ceramic structures, enabling size exclusion and magnetic interactions. This enables the separation of single proteins from thousands found in blood serum, with potential applications in catalytic conversion.
Researchers at Virginia Tech have developed new phosphide-based catalysts that improve the removal of sulfur and nitrogen from hydrocarbon fuels. These catalysts are more active, physically strong, and inexpensive to produce and regenerate than existing sulfide-based catalysts.
A new study found that consuming cranberry juice daily can significantly increase levels of good cholesterol by an average of 10% and boost plasma antioxidant capacity by up to 121%. The effects are associated with a decreased risk of heart disease.
A new study has found that African Americans are at higher risk of developing hypertensive retinopathy, a sign of severe hypertension. The study, which included over 15,000 participants, found that racial differences in blood pressure levels and hypertension severity were the main factors contributing to this disparity.
Los Alamos scientists have developed a new method to produce high-purity plutonium sources, which will be used as primary analytical chemistry standards. The new extrusion method produces 99.99% pure plutonium with minimal contaminants and surface oxidation.
Research by Roger Vickerman suggests that planned short-term immigration boosts the UK labor market with workers taking lower-skilled jobs, allowing indigenous workers to move up the career ladder. This mobility also benefits home countries through remittances and skills acquired abroad, contributing to increased productivity upon return.
A $10 million grant will fund a new prostate cancer research consortium led by Emory University, comprising 13 universities from eight states. The consortium aims to identify new therapeutic targets for advanced prostate cancer treatment.
Scientists have found that the DNA-repair enzyme functions uniquely in different organisms, with varying electron transfer pathways. This discovery may lead to the development of a novel enzyme for treating skin cancer in humans.
Researchers have developed a new tool to study mankind's diseases by using bacteria as 'copy machines' for DNA taken from other organisms. The tool, called Red/ET recombination, allows scientists to engineer large DNA molecules and insert artificial versions of genes into living systems.
Researchers have developed a glycosylated enkephalin that appears promising in studies using mice, triggering behavior consistent with reduced addiction and fewer side effects than morphine. The compound interacts with both mu and delta receptors to increase analgesic strength while limiting narcotic side effects.
Researchers identify APOE genotype as significant risk factor for diabetic peripheral neuropathy, a condition that can lead to severe complications such as amputations and chronic pain. The study suggests that biomarkers like the APOE 3/4 or 4/4 genotypes could help direct intensive interventions to patients at high risk.
Patients with recurring migraines recorded non-headache symptoms in an electronic diary for three months, revealing a consistent pattern of symptoms leading up to the headache. The study suggests that learning to recognize these symptoms can help patients prevent or minimize their migraines, providing a new treatment option.
The Virtual Mass Spectrometry Laboratory (VMSL) is an interactive educational tool that allows students to learn how to solve real problems in various scientific disciplines. The system connects students to data files from four mass spectrometers, enabling them to analyze compounds and proteins using different instruments.
A new study reports the results of several studies on determining the optimum materials for use as a proton exchange membrane in methanol-based fuel cells. The researchers believe that methanol-based fuel cells could be developed before hydrogen-based fuel cells, providing a convenient and accessible alternative for powering devices.
Researchers investigate how changes in polymer environment and glass transition temperature impact stability in medical implants. Hydration can affect polymer degradability and structural stability, highlighting the need for tailored material properties.
Researchers have combined an antibody with an antioxidant enzyme to protect transplanted lungs from oxidative stress, improving lung-graft survivability and storage time. The anti-PECAM/catalase hybrid construct strengthened antioxidant defenses and reduced free-radical damage in animal models.
Researchers have developed a new method to measure the attraction between particles and surfaces using an atomic force microscope. This technique allows for the simulation of various environmental conditions and the quantification of sticking efficiencies, which can improve contaminant removal methods.
Researchers at Michigan State University have identified a gene responsible for Smith-Magenis Syndrome (SMS), a rare genetic disorder. The discovery suggests that primarily one gene contributes to the phenotype, rather than multiple genes as previously thought.
Scientists at Rensselaer Polytechnic Institute create computer models of proteins to integrate them into dry substances like plastic. This development could lead to new applications in the security and medical industries, such as ultra-hygienic surfaces and chemical sensors.
Virginia Tech researchers discovered that tert-butoxyl radicals are more reactive than initially thought, making them a poor model for studying oxygen-free radicals in biological systems. This finding challenges previous assumptions about the behavior of these radical species.
Researchers have developed contact lenses that can dispense prescription drugs directly to the eye, reducing the risk of side effects associated with traditional eye drops. The new technology uses nanoparticles to encapsulate drugs in a matrix, allowing for controlled release over an extended period.