A team of scientists identified genomic regions in wild tomato species that boost yield and drought resistance, outperforming commercially available hybrids. Their approach harnesses natural biodiversity to enrich the genetic basis of cultivated plants.
Researchers found that UV light combined with certain coatings can lower cell adhesion by 15-50% on glass and metal-oxide coated surfaces, reducing bacterial contamination. Higher intensity light is more effective than lower intensity UV light in preventing biofouling.
Researchers have discovered a new class of water-soluble gold quantum dots with discrete excitation and emission spectra, making them potentially useful for biological labeling. The nanodots exhibit bright fluorescence and high fluorescence quantum yields, with controlled size-tunable emissions.
A recent study by a University of Nevada researcher suggests that glucose levels in female mammals may influence the sex of their offspring, challenging a long-standing hypothesis in evolutionary biology. The study's findings have significant implications for wildlife conservation and agriculture production.
The study found that mice with enhanced PPAR-delta activity exhibit a major transformation in skeletal muscle fibers, increasing slow-twitch fiber population and decreasing fast-twitch fiber population. This leads to improved endurance and protection against weight gain, even on high-fat diets.
Researchers have developed a new paint that prevents corrosion by capturing and releasing corrosion-fighting agents when needed. The pigment contains cerium, a natural anti-corrosion mineral, and can be used in conjunction with other corrosion inhibitors to provide enhanced protection.
Researchers found that scores of patients with a shunt stayed stable, while those without declined by 20% after 12 months. Isoprostane levels were reduced by 50% compared to standard anti-Alzheimer medications.
A new research program will focus on improving evidence acquisition and analysis for weapons of mass destruction in marine environments. The program aims to develop sensors and technologies to detect signs of WMDs, enhancing coastal security and national infrastructure protection.
Scientists at Virginia Tech have developed a new class of inhibitors that target the Pin1 enzyme, which regulates cell division in cancer cells. The researchers found that one of the inhibitors was 23 times more effective than a similar compound, offering promise for treating various types of cancer including breast and prostate cancer.
Researchers found that mutations in clock genes caused male flies to copulate significantly longer than usual, revealing a novel role for these genes in regulating behavioral timing on the order of minutes. The study also suggests that clock genes may have important regulatory functions in other areas beyond cyclic patterns.
Researchers have discovered key aspects of PCB fate in sediment and developed methods to monitor and contain these synthetic compounds. They found that bacteria populations decompose PCBs differently in sediments taken from separate, contaminated rivers.
Researchers have found a well-preserved layer of tiny grains at a kaolin mine in Warren County, Georgia, indicating that the grains and surrounding rocks were formed during a recent meteor strike beneath the Chesapeake Bay. The discovery provides valuable information about the massive impact event and its effects on the environment.
Researchers have uncovered a powerful new cancer-fighting property of Herceptin, which targets HER-2 positive breast cancer cells. The study found that high levels of PTEN in tumor cells predict response to the drug, and offers potential combination therapy with PI3K inhibitors.
Researchers identified a key mechanism of trastuzumab resistance, highlighting the importance of PTEN activation and PI3K pathway activity. PTEN-deficient breast cancers show poorer responses to trastuzumab, while inactivation of PI3K rescues cells from resistance.
Researchers have discovered that nanowires composed of lithium, molybdenum and selenium atoms can detect significant changes in electrical resistance when exposed to vapors of organic solvents. This property enables the creation of simple chemical sensors that can measure the acidity of a solution.
Researchers found that specific immunoglobins 'turn on' the IGF-1R, triggering inflammation and T lymphocyte activation. Blocking this interaction arrests molecular events leading to T cell activation, offering promise for a common therapeutic strategy for autoimmune diseases.
Researchers have discovered a significant correlation between ABC transporter gene expression and decreased sensitivity to certain cancer drugs. This study provides valuable insights into the role of these proteins in multidrug resistance, potentially leading to the development of new therapeutic strategies.
A new non-invasive imaging technique using magnetic resonance imaging and a novel MRI agent can help surgeons determine the extent of cancer in breast patients. The technology has the potential to reduce surgical trauma and improve patient outcomes.
Reduced gray matter volume, particularly in language centers, is associated with dyslexia. The study supports the effectiveness of intensive reading remediation therapy.
A study by Solveig Hofvind and colleagues found that women who undergo biennial mammography between ages 50-69 have a 20.8% cumulative risk of false positive recall after 20 years. This risk is lower for benign procedures, with only 1 in 66 women requiring a core biopsy and 0.9% undergoing open biopsy.
Feldman et al report that donepezil treatment for six days is associated with a total societal cost saving of $224 per patient. The American Brain Coalition (ABC) was established to advocate for increased support for biomedical research.
Scientists have determined the precise molecular structure of a potential new target for treating prostate cancer, driven by abnormal testosterone activity. The target is part of the androgen receptor, which drives prostate cancer at different stages.
According to a recent study, approximately 65 million US adults now have hypertension, a 30% increase from the previous decade. The rise is largely due to the growing prevalence of obesity and an aging population.
Researchers found that social insects' policing behavior against cheating workers cannot be explained by relatedness alone. Instead, the energy invested in laying eggs detracts from colony efficiency and growth.
Connexions, an open-source courseware platform, has received a $1.25 million grant from the Hewlett Foundation to enhance usability and increase available knowledge. The project aims to promote knowledge sharing worldwide without copyright restrictions.
Researchers found a five-fold increase in knee torque and muscle force when humans switch from walking to running. This increased force generation leads to higher energy costs for running compared to walking due to the more flexed knee joint.
Researchers have found that the threespine stickleback fish has a genetic sex-determination system similar to other vertebrates, with females having XX chromosomes and males having XY. The study provides evidence for the early formation of sex chromosomes in this species, offering insights into the evolution of sex chromosomes.
Researchers at Georgia Institute of Technology found that aquatic plant duckweed sequesters persistent organic compounds in its tissue, removing contaminants from natural waters and engineered wetlands. The study's implications include updates to water monitoring regulations and wastewater treatment practices.
The McGill researchers developed a new method to produce CNTs with the possibility of scale up to large industrial levels, based on thermal plasma technology. This technology has the potential to bring down production costs and increase availability in large quantities.
A new pediatric croup vaccine has been shown to be safe and well-tolerated in adults, with no significant reactions or laboratory abnormalities. The vaccine contains a live virus that stimulates both antibody and cellular immune responses, providing potential durable protection against hPIV-1.
The Virginia Tech Geospatial Center provides a statewide ESRI site license, resulting in cost savings and increased availability of GIS software. This collaboration also enhances economic development, environmental projects, and good governance across state agencies and localities.
Scientists at the University of Illinois have created a new type of fiber that can effectively remove trace levels of atrazine, a widely used herbicide, from drinking water. The fibers, which are nearly eight times more effective than commercial activated carbon, can be easily regenerated and have been patented.
Researchers genetically engineered mice to enhance endurance by altering muscle fiber types. These changes improved running performance, but also led to muscle damage when pushed too far. Additionally, a new technique using PPARα protein transformed slow-twitch fibers into fast-twitch fibers, increasing exercise time and distance.
A Carnegie Mellon researcher has developed a reactive core mat technology that can clean up pollutants in the Anacostia River. The innovative solution could provide a more affordable alternative to expensive dredging methods, which have costs running into the hundreds of millions of dollars.
Scientists at Boston Children's Hospital have uncovered a crucial mechanism that enables B cells to produce unique, specialized antibodies by selectively targeting specific stretches of DNA. This discovery has significant implications for understanding the immune system and potentially preventing cancers like lymphomas.
Researchers develop polymer films that can close up holes ripped through them by high-speed projectiles, potentially improving aircraft survivability. The material's thermal properties influence its self-healing performance, and a balance between restoring force and elasticity is crucial for optimal results.
A study published in Cancer Cell found that zebularine slows cancer-cell growth by up to 68%, but only 21% in normal cells. The drug works by demethylating specific genes, offering a promising new approach to cancer treatment with fewer side effects.
Male fruit flies without specific circadian clock genes spend up to 30-50% more time in copulation than normal counterparts. The findings broaden the known behaviors controlled by these genes and suggest they may regulate biological processes within short and long time scales.
A molecule called hepsin has been found to promote the deadly progression of prostate cancer by disrupting tissue organization. This discovery may lead to the development of new therapeutics designed to decrease the spread of prostate cancer.
Researchers have developed a non-invasive method to detect and trace elevated levels of an enzyme linked to plaque instability. The technique uses magnetic resonance imaging (MRI) to pinpoint plaques that are most likely to rupture, potentially allowing doctors to prioritize treatment.
Researchers have developed new, non-toxic additives for poly(vinyl chloride) (PVC) to improve its fire retardancy. The additives, which rely on copper atoms, work by creating chemical crosslinks that form an inert char on the surface of PVC, helping to block flammable gases.
African-American women are less likely to undergo immediate or delayed breast reconstruction after mastectomy compared to Caucasian, Hispanic, Asian, and Middle Eastern women. Physicians' referral patterns and patient acceptance also contribute to these racial discrepancies.
A study by Vanderbilt University researchers reveals that biological clocks enhance the fitness of organisms by adapting to daily environmental changes. However, when illuminated constantly, these internal pacemakers become obsolete and can even hinder growth, according to the research.
A new species of coral-dwelling goby was found in Papua New Guinea and is closely related to another goby species. Genetic analysis reveals that the two species diverged from each other around 200,000 years ago due to host shift, suggesting sympatric speciation by host shift as a plausible explanation.
Cornell University researchers have discovered a method to precisely control the electronic properties of complex oxide materials at the atomic level, replacing silicon insulators. The technique involves removing oxygen atoms from thin films to create vacancies, which act as electron-donating dopants and can be controlled with high pre...
Researchers have found that people with the rare genetic disorder BBS syndrome are unable to detect odors due to faulty cilia in their olfactory system. The study, led by Johns Hopkins Medicine researchers, used mice models to prove that ciliary problems caused by BBS-causing genes lead to impaired sense of smell.
A new laboratory study using rat liver cells found that the blueberry compound pterostilbene activates the PPAR-alpha receptor, reducing cholesterol and other lipids. Pterostilbene was shown to be similar in activity to a commercial drug, but with fewer side effects.
University of Alberta researchers provide independent verification that CFS patients are distinct from those with depression. The study used electrodermal activity to demonstrate differences in skin temperatures and electrodermal activity between CFS and depression patients.
Diabetics are susceptible to prolonged inflammation due to infection, leading to cardiovascular disease and poor wound healing. Inhibiting excess TNF may reduce the tendency for prolonged inflammation.
Researchers at UCSD developed genetically modified mice with superior endurance capabilities by deleting the HIF-1 gene, which enables aerobic energy production. These 'super mice' can run and swim longer than normal counterparts but exhibit muscle damage after prolonged exercise, highlighting a double-edged effect.