Researchers used GPS tracking collars and analyzed carbon isotopes in elephant tail hair to monitor the elephants' movements and diet. The study found that when rains begin, satellite measurements show increasing greenness as grasses grow, indicating peak levels of high-protein grass in the elephants' diet.
Scientists studying a new cancer treatment discovered that protein levels, not genetics, determine the effectiveness of the medication. This finding offers an alternative explanation to the cancer stem-cell hypothesis and holds promise for designing more effective anti-cancer treatments.
A study found a microRNA gene, miR-96, associated with progressive hearing loss in humans and mice. The mutation disrupts the development of sensory hair cells, leading to dramatic loss of hearing.
Researchers at Stanford University School of Medicine developed a machine that can analyze tiny blood samples for cancer-associated proteins, detecting subtle changes in protein modifications. The technique may provide a faster and less invasive way to track solid tumors and monitor treatment response.
Researchers have proposed a novel optical clock concept that enables more stable clocks, sub-natural linewidth laser spectroscopy, and long coherence time lasers. The lasing behavior of the active optical clock is described by the modified Schawlow-Townes linewidth formula, which narrows the linewidth due to collective emission from ga...
Scientists have developed a new method to create safe and effective embryonic-like stem cells using tiny molecules called microRNAs. This breakthrough technology eliminates the risks associated with traditional DNA-based methods, making it a promising step towards regenerative medicine.
Researchers at Temple University have found a simple color-changing oral strip can help detect gum disease more quickly and easily than traditional methods. The strips change color based on levels of microbial sulfur compounds in saliva, providing a comparable screening method.
Recent observations from the USArray transportable array and EarthScope instruments have shed new light on seismic wave propagation and the evolution of the Yellowstone hotspot. The analysis suggests a common mantle source for the region's unique topographic features, providing valuable insights into geological processes.
Researchers at MIT have developed a novel method for creating exceptionally fine lines on microchips, overcoming fundamental limits in light-based technologies. The technique uses interference patterns to produce transparent lines interspersed with opaque material.
Patients given an omega-3 enriched supplement maintained all aspects of their body composition after surgery, while those without it suffered clinically severe weight loss. The study suggests that omega-3 fatty acids may reduce the risk of post-surgical complications by suppressing inflammation.
New research suggests climate change will impact ozone recovery rates due to changes in atmospheric circulation. Greenhouse gases alter the Brewer-Dobson circulation pattern, influencing ozone distribution and leading to uneven ozone layer recovery.
Researchers at UT Southwestern Medical Center found that the protein Thymosin beta-4 initiates migration of heart cells and blood vessel growth after a heart attack, encouraging new growth and repair of damaged heart cells. The molecule affects developmental gene expression as early as 24 hours after systemic injection.
A study by Brown University researchers found that nursing homes serving primarily Hispanic residents provided poorer quality care, including higher rates of bed sores. The study looked at data from California, New Mexico, Texas, Arizona, and Colorado and found disparities in care related to racial segregation.
Dr. Neal F. Lane, a prominent physicist and former U.S. presidential science advisor, has been awarded the AIP's Karl T. Compton Medal for his outstanding contributions to physics through exceptional statesmanship. He is recognized for his advocacy of public understanding of science and technology, as well as his championship of scient...
A team of astronomers has found a sample of massive galaxies with properties suggesting they may have formed recently, running counter to widely-held beliefs. The discovery challenges our understanding of galaxy formation and evolution, offering new opportunities for research into the origin and early history of galaxies.
Researchers studied ICU patients with acute lung injury (ALI) and found that those with greater organ failure and higher benzodiazepine doses were more likely to experience depression after discharge. The study suggests that certain aspects of critical illness and ICU care may contribute to depression.
A study by Kansas State University researchers found that people drive at speeds based on their perceptions and existing conditions, rather than adhering to posted speed limits on gravel roads. The study also revealed no safety benefits from posting speed limit signs or reducing the speed limit.
The ALCF's powerful installation of NVIDIA Quadro Plex S4 external GPUs enables scientists to visualize and analyze vast amounts of data from high-performance calculations. This allows for dramatic reductions in time needed to create complex visualizations, boosting their quality.
A three-year NSF grant will help improve protein production in crops through research on Arabidopsis gene conversion. The study aims to understand how plants control protein synthesis and identify key steps and factors involved.
A recent study by Mount Sinai faculty suggests that a gene associated with type-2 diabetes decreases in Alzheimer's disease dementia cases. The research found that promoting PGC-1 content in brain cells attenuates hyperglycemic-mediated β-amyloid production, linking type-2 diabetic metabolic defects to increasing dementia.
Researchers developed a test to quickly assess the effectiveness of Alzheimer's drugs in reducing amyloid beta production, which builds brain plaques. The test, SILK, was used to study LY450139, an Eli Lilly drug candidate, and showed a dose-dependent drop in A-beta production.
A team of scientists has sequenced the genomes of two tiny marine algae, revealing unexpected genes with functions similar to those found in land plants and bacteria. The findings highlight the complexity of these organisms and their potential role in shaping marine food webs and carbon cycling.
Researchers found that teaching kids the underlying structure of math problems enhances their understanding and ability to solve them. This approach, known as conceptual instruction, enables students to explain the problem and its solutions on their own.
Researchers found that comparing different solution methods enhances students' understanding of math concepts and improves their flexibility in solving equations. This approach is more effective than comparing problems solved using the same method.
Scientists from the University of Miami Rosenstiel School and University of Oxford have analyzed data to identify details of the major plate boundary event that destroyed 90% of Pisco, Peru. The study reveals maximum intensity and damage occur few tens of kilometers south of the epicenter.
A CSHL-led team has identified a critical role for the protein EYA in setting the machinery for DNA repair, allowing cells to either fix broken DNA or die. The discovery sheds light on how cells make decisions when faced with catastrophic DNA damage.
Researchers have determined the molecular structure of a plant photolyase protein similar to two cryptochrome proteins controlling the human clock. The study reveals key differences between human and plant cryptochromes, shedding light on the complexities of the human sleep/wake cycle.
Researchers found that avotermin improved scar appearance by an average of five points at six months and eight points by month 12 in two studies. The treatment also showed a significant improvement in the structure of healed skin, with 60% of scars demonstrating less abnormal collagen fibre orientation.
Researchers discover adenylylation, a unique post-translational modification, regulates cell signaling by inactivating key proteins. This discovery opens new avenues for exploring bacterial pathogenesis and potential therapeutic targets.
A study in Evolution Canyon, Israel, shows that scorpion species exhibit different distributions on the south-facing and north-facing slopes, despite identical regional geology. The results suggest that environmental pressures, such as sunlight and drought, can lead to local changes in biodiversity.
Researchers are re-evaluating earthquake potential in the Central Coast region, a high-risk area with significant population growth. Fresh data from multiple datasets will focus on faults including the Hosgri Fault Zone and highlight newly identified features such as a linear trend of seismicity and magnetic anomalies.
A UC San Diego bioengineer has made significant discoveries on the universal need for cells, tissues, organs, and organisms to use common biological modules. The researcher found that despite differences in structure and function, various biological systems respond to forces using similar strategies.
A randomised controlled trial found that a single annual infusion of zoledronic acid improved bone mineral density by 4.1% compared to daily risedronate's 2.7%. This increase in BMD is associated with reduced fracture risk and acceptable safety and tolerability profiles.
A giant Cascadian earthquake could cause severe damage and possible collapse in Seattle's high-rise buildings, particularly those constructed before 1994 building code changes. The Seattle basin amplifies long-period motions, making tall steel buildings susceptible to low-frequency shaking.
The 1989 Loma Prieta earthquake had a profound societal impact, transforming earthquake sciences and engineering. The event led to improved understanding of earthquake processes and triggered major changes in building codes and disaster response.
This year's Proctor Medal recipient, Joe G. Hollyfield, is recognized for his research on drusen and age-related macular degeneration. Samuel Wu receives the Friedenwald Award for pioneering retinal signaling process systems.
The study reveals that African Pygmies and their farmer neighbors diverged approximately 60,000 years ago. Genetic analysis indicates a common origin for all Pygmy populations, with distinct physical traits possibly inherited from a shared ancestor.
A new therapy for metastatic prostate cancer has shown considerable promise in early clinical trials involving patients whose disease has become resistant to current drugs. Researchers have developed a novel compound, MDV3100, which blocks the androgen receptor in CRPC cells, lowering PSA levels and reducing tumor growth.
A study published in The Lancet found that early antiretroviral treatment can significantly improve survival rates among HIV-positive patients. By initiating treatment when CD4 cell counts fall between 351 and 450 cells/µL, the risk of AIDS development and death was reduced by 28%.
A recent study found a 188% increase in women with ductal carcinoma in situ (DCIS) undergoing contralateral prophylactic mastectomy (CPM) between 1998 and 2005. The surgery is typically recommended for women with invasive breast cancer, but not for those with DCIS, which has a 98-99% 10-year survival rate.
The study confirms individual galaxies are source of Far Infrared Background, a decade-old question answered. BLAST's submillimeter survey uncovers dust-enshrouded galaxies with properties deciphered through multi-wavelength data.
Establishing a public trust doctrine for federal waters could provide a practical legal framework for regulating ocean-based commerce while protecting marine species and habitats. The doctrine would obliges governments to manage natural resources in the best interests of citizens, without sacrificing future generations' needs.
Researchers have designed tiny RNA molecules that can reduce production of the damaging Huntingtin protein in nearly half of people with the disease. An additional set of four small interfering RNAs may benefit an additional 25 percent of patients.
Researchers found that visual motion influences tactile motion, and vice versa, using a unique tactile stimulator. This discovery suggests overlapping neural circuits for sensory processing.
Researchers have decoded the genomes of two tiny algal strains, highlighting their genes that enable them to capture carbon and maintain its delicate balance in the oceans. The study also sheds light on how these algae may cope with environmental change.
Researchers from the University of Wisconsin successfully generated human embryonic stem cells that can produce myelin, a finding with potential for both basic and clinical research. The process takes 14 weeks compared to 2 weeks for mouse ES cells.
A study published at the Royal Economic Society's conference found that job promotions lead to increased mental strain, resulting in a 10% decrease in mental health. Promoted individuals also reported a 20% drop in doctor visits, possibly due to reduced time availability.
Stereo will use a wide-field-of-view telescope to search for asteroids orbiting the region, which could be leftovers from a Mars-sized planet that formed billions of years ago. The mission aims to provide three-dimensional views of space weather and study its effects on Earth.
Scientists have found that changing the timing of NF-kappa-B signalling can treat diseases more effectively, challenging traditional drug approaches.
Researchers found that synonymous mutations determine mRNA folding, influencing protein levels, and identified a class of mutations slowing bacterial growth. This study improves the design of therapeutic genes by optimizing protein production while maintaining cell health.
Researchers at Ohio State University have discovered a method to compress atoms in an optical lattice until heat is squeezed out and into a surrounding ultra-cold Bose-Einstein condensate, which can absorb and evaporate the heat away. This new approach aims to overcome temperature as a bottleneck for the creation of light crystals.
A recent editorial in The Lancet critiques Coca-Cola's marketing tactics, drawing parallels with the tobacco industry. The company is accused of using celebrity endorsements and blaming shifting to avoid responsibility for its products' impact on health.
Scientists have developed a device that protects transplanted pancreatic precursor cells from the immune system, allowing them to mature into functional beta cells. This breakthrough approach could alleviate the need for long-term immunosuppression in cell transplantation therapy.
Pittsburgh University researchers teamed up with Berkeley biophysicist George Oster to create a computer program generating complex shell patterns. The model shows how mollusks' neural networks process sensory information and past experiences.
A massive earthquake swarm in Yellowstone National Park was analyzed by SSA researchers, revealing epicenter migration and sudden depth changes. The study suggests that hydrothermal fluids may be responsible for the swarm's source properties.
Researchers at Medical College of Wisconsin developed a set of free tools called ViPDAC to combine with Amazon's cloud computing service, providing inexpensive processing time for proteomics data analysis. This makes it possible for more users to analyze their data in greater depth and learn more about the systems they're studying.
A novel gene fusion, SLC45A3-ELK4, is highly expressed in prostate cancers and detectable in urine. This biomarker may help distinguish clinically significant from indolent disease.
Researchers at UNC School of Medicine have identified a compound that could treat secondary glioblastoma multiforme (GBM), a type of brain tumor. By replenishing α-ketoglutarate, they reversed the effects of IDH1 gene mutation, which contributes to tumor growth.
A study by Pitt researchers found that injecting human corneal stem cells into mice with scarred and hazy eyes restored transparency. The cells were able to remodel scar-like tissue back to normal, suggesting a potential treatment for corneal blindness and vision impairment.
A new statistical method estimates the source location and geographic extent of an aerosolized anthrax release based on early cases and weather information. This enables public health decision makers to identify people at risk and treat them promptly to save lives.