The US has launched a constellation of six low-orbiting satellites called COSMIC to provide real-time atmospheric data over thousands of points on Earth. The system will measure the bending of radio signals from GPS to track hurricanes, typhoons and climate change.
Researchers confirm that both humans and chimpanzees possess gene variants related to bitter taste, but the reasons behind these variations differ. The new findings challenge a 65-year-old genetic discovery made by Sir Ronald Aylmer Fisher, instead attributing the phenomenon to convergent evolution.
The Society of Nuclear Medicine and Molecular Imaging (SNM) has released a landmark procedure guideline for tumor imaging with 18F-FDG PET/CT. The document provides recommendations for patient preparation, image acquisition, interpretation criteria, and quality control to ensure high-quality imaging results.
Researchers suggest that the subduction of the northern portion of the Juan de Fuca plate beneath the North American plate may be slowing and eventually cease, potentially altering the seismic hazard profile of the region. The discovery was made using advanced technology and data from formerly classified U.S. Navy hydrophones.
A study by Professor Simon Parker and Olufunmilola Ajaji-obe found that self-employed people in the UK work long hours but report higher job satisfaction compared to employees. The researchers also discovered that younger entrepreneurs are more sensitive to new information than older ones, which can impact their retirement decisions.
A new three-year project is investigating the earliest development of sea fisheries in Northern Europe, with a focus on the critical period between 950AD and 1050AD. Researchers are analyzing fish bones from archaeological sites across the region to understand the impact of intensive sea fishing on medieval trading patterns.
A six-year study found that higher carbon dioxide levels and limited nitrogen in soils hinder plant growth, potentially leading to reduced ecosystem carbon storage. The research suggests that as atmospheric carbon dioxide increases, soils will struggle to support plant life, exacerbating the issue.
Telithromycin shows promise in treating acute asthma attacks, reducing symptoms and recovery time. The antibiotic's anti-inflammatory properties may also help alleviate severity of asthma attacks.
A new cell surface profiling technique developed by Carolyn Bertozzi and her team could lead to the creation of a simple blood test for cancer diagnosis. The method involves tagging glycoproteins with a metabolic label and monitoring changes in O-linked protein glycosylation.
A recent study published in Geochimica et Cosmochimica Acta suggests a massive meteorite shower occurred on the Moon 3.8-4 billion years ago, potentially impacting Earth as well. The lunar rocks analyzed produced ages close to 3.9 billion years and exhibited different chemical fingerprints, indicating repeated bombardment by meteorites.
Researchers discovered that p110 alpha controls insulin signals, frequently mutated in cancer, but mice with a single mutation showed no signs of developing diabetes. The findings have immediate implications for testing p110 alpha-specific inhibitors for human therapies.
A six-year study found that terrestrial plants' ability to increase growth in response to elevated CO2 is limited by soil nitrogen supply. The research contradicts previous predictions, suggesting atmospheric CO2 levels may rise faster than anticipated.
The Academy of Natural Sciences is digitizing historic plant type specimens, featuring over 30,000 samples from the 18th century. This project provides a valuable resource for researchers worldwide, particularly those in developing countries with limited access to research libraries and herbaria.
A statewide study in Wisconsin found that unbelted crash occupants represented 68% of patients dying in emergency departments. Unbelted survivors were more than twice as likely to be admitted to the hospital and suffer moderate to severe injuries. The study also linked seatbelt non-use to higher ED bills and economic costs.
Women taking estrogen had fewer breast cancer tumors, but the difference was not statistically significant. Participants also underwent more mammograms and biopsies, which may be related to changes in breast tissue.
Researchers argue that surgery is most effective approach in many patients, improving five-year survival rates compared to chemotherapy and radiation. The study found that en bloc esophagectomy results in fewer cancer deaths than transhiatal resection.
The university aims to improve student outcomes in mathematics education through this grant. Kent State will use the funding to develop and implement evidence-based curricula and support services.
The Bridgewater team created an interactive toy called 'The Green Machine' that teaches principles of green chemistry and reduces waste. The winning entry earned a $2,000 prize for purchasing a computer system and aims to interest young children in science and renewable energy.
The study found that the protein MBD2 mediates DNA methylation to silence specific genes. This could lead to more targeted approaches to reactivate genes and treat diseases such as sickle-cell anemia and beta-thalassemia, with less risk of unintended side effects.
A study found that marketing products as remedies can actually increase risky behavior among those who are most at risk. The authors argue that remedy messages can have a boomerang effect on the people they intend to help, creating a serious problem for individuals and society.
A new clinical trial launched by Mount Sinai aims to determine whether a combination therapy is more effective than individual treatments in slowing or halting progression of Relapsing-Remitting Multiple Sclerosis. The study will recruit 1000 patients and assess the impact of treatment over 36 months.
Research reveals chemotherapy works better for ER-negative tumors, with significant survival benefits, while tamoxifen is effective but less impactful for ER-positive tumors. Modern chemotherapy regimens show promise for treating ER-negative patients.
A U of MN study found that teen dieters are three times more likely to be overweight and suffer from eating disorders. Longitudinal study of over 2,000 adolescents showed dieting behaviors increase risk for obesity and disordered eating after five years.
Researchers find that regulatory focus influences consumer responses to brand comparisons. Promotion-focused individuals are more interested in brands advertised with maximal comparisons, while those focused on prevention prefer minimal comparisons. This study challenges the assumption that maximal comparisons are always more persuasiv...
Researchers have deciphered engineering principles of biological nanosystems to develop new technologies, including assembly lines for cargo at the nanoscale level. This breakthrough promises novel ways to combat bacterial infections and interact with synthetic surfaces.
Researchers found significant improvements in disease-free survival and overall survival rates for patients with ER-negative breast cancer treated with modern chemotherapy regimens. These findings underscore the need for tailored treatments based on tumor subtypes.
A recent study by Northwestern researcher Nalini Rajamannan reveals that bone growth, rather than wear and tear, is the primary cause of heart valve disease. This active process can be treated with medications similar to those used for coronary artery disease, offering new options for prevention and treatment.
Researchers found that bacteria gain resistance through only a small fraction of the 120 possible mutational paths in a key gene. Most pathways fail to continuously improve resistance, contradicting traditional views on evolution by natural selection.
A team of researchers has created a miniaturized blood-counting machine that can analyze blood samples using minute amounts, reducing the need for bulky equipment and large blood draws. The device will enable astronauts to perform simple blood tests on the moon and Mars, as well as improve neonatal care with infants.
A new clean-up strategy using phytoremediation has been discovered, allowing plants to transport environmental arsenic from roots to shoots. This breakthrough could help clean up thousands of sites worldwide where arsenic poses serious health risks.
A new study challenges the long-held assumption that older children are generally smarter than their younger siblings. Researchers analyzed data from nearly 3,000 families and found no link between birth order and intelligence when controlling for environmental factors.
Researchers found that a 'dead zone' summer in Narragansett Bay led to the death of approximately 4.5 billion mussels, with filtering capacity dropping by 75 percent within weeks. The loss of such a foundation species has lasting effects on the ecosystem.
Modern ants arose between 140-168 million years ago, coinciding with the emergence of flowering plants. This shift provided new habitats and food sources for ants, allowing them to diversify and become dominant in terrestrial ecosystems.
A new Kent State group called the Center for Health Literacy aims to improve the health literacy of adults and families. The project will evaluate all aspects of the health information-seeking process and make recommendations to help health-related institutions craft more effective health information programs and services.
A study by Dr. Harrell found that young attractive female caretakers without rings lost sight of children 19% of the time, and young attractive males lost sight 25% of the time. The research suggests that an absence of emotional commitment to marriage or family may lead to neglect.
Scientists at the Woods Hole Research Center have developed high-resolution maps of the built environment for the Chesapeake Bay watershed, capturing impervious surface cover and its implications for biogeochemical and hydrological processes. The new maps are being used to assess water quality and inform restoration efforts in the region.
The pHLIP peptide accumulates in cell membranes at low pH and translocates molecules into cells without relying on traditional entry pathways. This technology has potential applications in imaging, diagnosis, and treatment of diseases associated with acidic environments.
Researchers found a statistically significant direct relationship between high cholesterol and prostate cancer. Men with prostate cancer were around 50% more likely to have had high cholesterol levels than non-prostate cancer controls, especially those diagnosed before age 50 or over 65.
A study using social comparison theory found that individuals are more likely to lie to those they know, particularly when their public image is threatened. This behavior is driven by a desire to protect one's self-image and self-worth, rather than purely strategic reasons.
Researchers found elevated antibodies to EBV in individuals with MS, persisting up to 20 years before symptoms. The study suggests a strong link between EBV and MS risk, but the exact mechanisms remain unclear.
A team of University of Michigan researchers used fMRI to capture the brain's instant response to costly mistakes. They found that the rostral anterior cingulate cortex (rACC) becomes more active when errors carry consequences, suggesting a key role in emotional responses and decision-making processes.
Diabetic patients undergoing periodontal therapy show improved metabolic control, with a 20% reduction in HbA1c levels. The study suggests that periodontal treatment may help diabetic patients move from the 'at-risk' category to a healthy range.
Researchers propose a new model of p53 regulation that suggests a novel anticancer strategy using Mdm2 and Mdm4. The study reveals that Mdm4 renders p53 inactive, while Mdm2 mainly controls the stability of p53's structure.
The American Chemical Society has announced the winners of its nationwide student chemistry competition. The top prizes were awarded to Marissa Hohman, Jeanette Lawrence, and Andrew Gomez for their outstanding posters in grades K-2, 3-4, and 9-12, respectively.
A study of postmenopausal women found that those taking conjugated equine estrogens (CEE) had a lower rate of invasive breast cancer, total breast cancer, and localized disease compared to placebo group. CEE also showed a decrease in the risk of ductal carcinomas, but not lobular disease.
Yale researchers found that environmental toxins like TBT can alter the balance of chloride ions in outer hair cells, causing profound changes in sound amplification in the inner ear. This study confirms that whales and other marine mammals exposed to TBT have altered hearing and may contribute to beaching incidents.
Researchers have discovered a bacterial adhesive that is 70 newtons per square millimeter strong, comparable to the downward force exerted by three cars. This finding suggests that the substance may be the strongest glue in nature, surpassing common commercial glues.
CDF collaboration presents first precise measurement of matter-antimatter transition rate, oscillating at 3 trillion times per second, using Tevatron Run II data. Scientists hope to understand the early universe and role of exotic bottom quarks in its development.
A case report identified a serious oral post-surgical complication in a patient receiving IV bisphosphonates for breast carcinoma-related osteopenia. The patient developed osteonecrosis following periodontal surgical therapy, emphasizing the importance of dental evaluations before initiating IV bisphosphonate therapy.
AIDS researchers propose a global research agenda to study the impact of large-scale social changes, such as climate change, wars, and economic disruptions, on HIV transmission. The agenda aims to facilitate cross-disciplinary studies and address emerging issues in HIV/AIDS social research.
A joint study largely confirms earlier predictions that global warming will lead to mass species extinctions, particularly in biodiversity hotspots. The research assesses the potential effects of climate change on terrestrial biodiversity on a global scale, revealing catastrophic species loss across the planet.
New research uncovers factors triggering sex reversal in black sea bass, a key challenge for aquaculture. By studying hormones and enzymes, scientists aim to control sex change and improve breeding outcomes.
The J. David Gladstone Institutes will develop and implement a three-year, stem cell-specific curriculum for 10 postdoctoral fellows using the first third of $2.4 million grant. The program aims to educate scholars from various scientific backgrounds in stem cell biology and disease.
The malaria parasite affects antigen-presenting dendritic cells in mice, reducing their ability to activate helper T cells and produce cytokines. This impairment leads to the failure of B-cell activation and antibody production, compromising the immune system's response to infection.
The study refutes existing assumptions about inherent meaning in visuals, showing that creative directors and consumers share a similar understanding of white space. The researchers connect this to the minimalist movement and corporate art, highlighting the importance of socially agreed rules of language.
Researchers found that promotion-focused individuals prioritize their ability to follow through with healthy behaviors, while prevention-focused individuals prioritize the effectiveness of the behavior itself. This study has important implications for distributing information about healthy practices.
A new study finds that estrogen-only therapy does not increase the risk of breast cancer in postmenopausal women, contradicting previous findings. In contrast, hormone therapy combining estrogen and progestin was linked to a 26% higher risk of breast cancer.
Researchers found that chemotherapy improvements reduced recurrence risk by 21-55% in ER-negative tumors, while 9-26% in ER-positive tumors. This suggests that newer chemotherapies offer substantial benefits for patients with ER-negative disease.
A study at Mayo Clinic found that patients treated with shock wave therapy for kidney stones were at higher risk of developing diabetes and hypertension, with risks nearly four times and one-and-a-half times respectively. The researchers believe the association may be due to damage inflicted on the pancreas or scarring in the kidneys.
A Hopkins-led clinical study found that men's brains show a significantly higher dopamine release in response to amphetamines compared to women. This discovery may lead to more effective treatments for amphetamine abuse and brain diseases.