Scientists have created a method to switch on and off the spontaneous emission of light by quantum dots at will, with pulses as short as 200 picoseconds. This technique has potential applications in quantum information transmission and control.
The HS3 mission provided a detailed view of the storm's winds, temperature, and pressure throughout its depth. The data revealed that Eduoard was still a strong Category 2 hurricane, possibly Category 3, as it weakened over cooler Atlantic waters.
A new study published in PeerJ found that pollution in urban and farm runoff in Hawaii causes tumors in endangered sea turtles. The researchers discovered that high levels of nitrogen in the runoff promote the formation of tumors on the animals' eyes, flippers, and internal organs.
The researchers created a two-dimensional metallic dielectric photonic crystal that absorbs virtually all wavelengths of light from the sun, but not much of the rest. The material can withstand extremely high temperatures and is made at large scales with cheaply manufactured technology.
A research team led by Alejandro Briseno has developed a new polymer architecture that mimics the structure of blades of grass to improve the efficiency of organic solar cells. The breakthrough solves a major problem with energy transfer and has widespread applications for solar cells, batteries, and transistors.
Researchers have identified a class of chemical compounds that make cancer cells more sensitive to chemotherapeutic drugs. The compounds, referred to as T8, specifically target the protein disulfide isomerase enzyme and induce programmed cell death in rapidly dividing cancer cells.
A Rutgers researcher trained 4-month-old babies to recognize important sound patterns, accelerating the development of their brain maps. This allowed them to process language more efficiently and accurately at 7 months old.
A new study by British American Tobacco found that slim cigarette smokers experience lower exposure to toxic chemicals like carbon monoxide and acetaldehyde. The researchers attribute this reduction to the smaller size of slim cigarettes, making it harder for smokers to draw on.
A QUT expert warns Australian governments that increasing pollution to just below existing standards would cause thousands of additional deaths each year. The health statistician's analysis reveals the devastating impact of pollution on human life, highlighting the need for thorough cost-benefit analyses in environmental studies.
Researchers developed a new blood test called the lymphocyte genome sensitivity (LGS) test, which can detect some cancers earlier than ever before. The test analyzes white blood cells exposed to UVA light and measures their DNA damage, allowing for early cancer detection and identifying those at risk of developing cancer.
A new study published in JAMA found that the virtual ward model of care did not significantly reduce hospital readmissions or deaths among high-risk adult patients. Despite its conceptual appeal, the model failed to provide a significant benefit in reducing healthcare costs and improving patient outcomes.
Research in mice suggests that maternal cigarette smoking can affect the fertility of male offspring, causing reduced sperm counts, poor sperm shape, and impaired fertility. The study's findings have implications for human health, particularly for men who were exposed to cigarette toxins in the womb.
Scientists from China and the US report results from the first stage of the PandaX-I experiment, a dark matter search in an underground lab. The data from this experiment place strong constraints on previously reported dark matter-like signals.
Researchers at the University of Alberta have explained how a key protein in the heart changes in heart failure, shedding light on the molecular mechanisms behind this complex condition. By studying troponin I, they discovered that increased calcium sensitivity actually helps trigger contraction, despite slower relaxation.
A recent study by the University of Wisconsin-Madison found that mountain pine beetles contribute little to the ecological severity of fires in the Northern Rocky Mountains. The researchers tested six wildfires that affected over 75,000 acres and found no significant link between beetle outbreaks and fire severity.
A study by MIT professor Antoinette Schoar found that strong client-banker relationships reduce loan delinquencies and defaults. When loan officers leave, good-standing clients increase their probability of becoming delinquent on loans by almost 22 percent.
Scientists have developed a new generation of hyperpolarizing agents that can be used to dramatically enhance the signal intensity of imaged body tissues without presenting any danger to the patient. The HYPSOs are made from a fine, white, porous powder containing tracking molecules, which act as markers for imaging.
Researchers discovered that a genetic modifier called Pla2g2a can protect against colon tumors in mice, which could have significant implications for cancer research and treatment. The study found that mice with the resistant allele of Pla2g2a had fewer tumors than those with the sensitive allele.
The VCU Center for Medication Development for Cocaine Use Disorder aims to develop safe and effective treatments for cocaine addiction. The center will conduct preclinical and early clinical trials, and provide educational resources to train the next generation of translational scientists.
Scientists at LA BioMed have discovered a way to bypass the blood-brain barrier and deliver an enzyme replacement therapy to treat MPS IIIB, a devastating genetic disease. The treatment has shown promising results by reducing the accumulation of waste products in brain cells.
A new pilot study published in Appetite found that chef-made meals can increase participation in the National School Lunch Program by 9% and overall selection and consumption of vegetables by 16%. Chefs Move to Schools, an initiative that pairs chefs with schools, was tested in a high school in Upstate New York.
A study published in Journal of Clinical Oncology found that the 2005 Medicare law had no significant impact on reducing chemotherapy drug costs, contradicting economists' expectations. Instead, cancer care costs skyrocketed during the decade after the law passed.
Researchers found that patients with Multiple Sclerosis (MS) can safely tolerate treatment with cells cultured from human placental tissue. Early signals also suggest the potential for repairing damaged nerve tissues, offering a new frontier in treatment for the disease.
New research from Princeton University shows that recessions have a profound impact on fertility, leading to lower birth rates in the short and long term. Women who experience high unemployment during their 20s are more likely to remain childless by age 40, with the effects increasing exponentially over time.
Combination therapy with vemurafenib and cobimetinib achieves greater progression-free survival and response rates than vemurafenib alone in BRAF-mutation positive melanoma. The study also shows a reduced incidence of skin-related side-effects with combination therapy.
Dr. Patrick F. Sullivan, a psychiatric geneticist, received the 2014 Lieber Prize for his distinguished work on schizophrenia. He heads large international projects and directs mega-analyses involving 90,000 participants.
A new study found that genomic data can explain around 15% of patients' responses to cholesterol-lowering statins. The research used data from a clinical trial and identified genetic signatures associated with improved or poor responses to the medication.
A recent study found that ocean acidification caused a significant decrease in calcification rates of the Great Barrier Reef, threatening its ecosystem. The research suggests that coral reefs are now producing less dense and fragile skeletons, making them more susceptible to erosion.
A University of Texas at Arlington research team has developed a new method to fabricate transparent nanoscintillators that could advance medical safety and homeland security. The resulting scintillator material has better energy resolution than currently used materials, making it more effective for radiation detection.
Researchers found that people consistently estimate their dominant hand to be less magnified than other objects under the same degree of magnification. This finding suggests that our bodies are used as perceptual metrics, allowing us to attribute changes in perceived size to changes in the world rather than our own body.
The Archstone Foundation's Depression in Late Life Initiative aims to improve depression care for older adults through collaboration among primary care clinics, family members, friends, and community-based organizations. Depression affects 2-5% of older adults in the community and 50% in nursing homes.
A team of researchers combined precision model experiments with computer simulations to study coiling patterns, discovering that natural curvature dramatically affects the process. The study has practical impacts on everyday life, including understanding transoceanic communication cables and rodlike structures.
Researchers found that using brief depression symptom measures in primary care settings can lead to unnecessary antidepressant prescriptions. The study suggests that these questionnaires may not be diagnostic and can cause false positives, resulting in over-treatment.
Phase II data showed dabrafenib has significant anti-tumour activity in patients with advanced BRAF V600E mutant non-small cell lung cancer. HER2 inhibition also shows promise in HER2-positive non-small cell lung cancer, with a 21% overall response rate in patients treated with neratinib and temsirolimus.
The UCSF Clinician Consultation Center has been funded by the CDC to provide a telephone consultation service for healthcare providers prescribing PrEP. The service will guide clinicians on identifying patients at risk, evaluating their ability to take PrEP regularly and ensuring safe prescribing practices.
The American Academy of Neurology states that the risk of death, overdose, addiction, or serious side effects from prescription opioids exceeds their benefits in treating chronic, non-cancerous conditions. The AAN recommends safer prescribing practices to minimize risks.
Chronic alcohol exposure disrupts normal sleep cycle by over-activating brain chemicals. Targeted medications may help treat sleep issues related to alcohol use disorders, according to Boston University School of Medicine researchers.
A recent study published in JAMA Pediatrics found a significant association between the use of broad-spectrum antibiotics before age 2 and an increased risk of obesity. The researchers analyzed data from over 1,000 children and found that greater antibiotic exposure was linked to higher rates of obesity and being overweight or obese.
VAULT2.0 will observe light emitted from hydrogen atoms at extreme temperatures to understand coronal heating. The launch allows for six minutes of observations above the atmosphere, capturing images every six to eight seconds.
Researchers detected a distinctive DNA signature in children born after the massive Quebec ice storm, linked to maternal hardship and stress. The study found that objective stress exposure, not emotional distress, caused long-lasting changes in the epigenome of their babies.
The National Institute of Allergy and Infectious Diseases has awarded seven research contracts to discover novel vaccine adjuvants that safely boost immune responses. The goal is to improve current vaccines, extend the vaccine supply, or enhance efficacy in people with immature or weakened immune systems.
Researchers in Italy have developed a new technology using distributed optical fiber sensors to monitor soil slopes and detect the onset of landslides. This innovation can help mitigate devastating losses of life and property by providing early warnings, making it an entirely new tool for landslide risk monitoring.
Researchers will create a website to track participants' progress, analyzing how social interactions influence behaviors and recovery outcomes. The goal is to develop a low-cost, accessible approach to supplement traditional treatment.
A recent study found that high-dose radiotherapy did not improve survival rates or delay local relapse in patients with malignant pleural mesothelioma who had undergone chemotherapy and surgery. However, researchers discovered that about 20% of patients expressed the PD-L1 protein, which could be targeted with immunotherapy treatments.
Researchers found a unique signature of aging in the choroid plexus, which separates blood from cerebrospinal fluid, and discovered that interferon beta has a negative effect on the brain. Blocking this protein's activity restored cognitive abilities in older mice.
Researchers found that using sweat-eating bacteria to metabolize ammonia improved skin condition and appearance in human volunteers. The study showed significant improvements, especially when the levels of AOB on the skin were high, suggesting potential modulation of the skin microbiota.
Researchers at Beth Israel Deaconess Medical Center identified brain networks that can help guide site selection for brain stimulation therapies. The findings suggest that stimulating sites in the same connected brain network can improve treatment outcomes across multiple neurological and psychiatric disorders.
A new study found that states with higher gun ownership rates experience a higher incidence of non-stranger firearms homicides, contradicting the claim that gun ownership deters violent crime. The study also found no significant relationship between gun ownership and stranger-on-stranger homicide rates.
A study found that 30% of soil and 6% of water samples were contaminated with Listeria monocytogenes, a potentially dangerous species. The bacteria were more common near rivers and in areas with high concentrations of agricultural land and urban environments.
Researchers predict near-future treatments for chronic diseases and aging, targeting underlying biological processes. Innovative business models and flexible regulations are needed to accelerate these advancements.
The study compares the interactions between silver nanoparticles and two thiols, mercaptohexanol (MH) and cysteine. MH forms a sparingly soluble silver(I) thiolate complex AgSRm on the surface, while cysteine replaces the citrate capping agent to form cysteine capped nanoparticles.
Researchers identify jarosite minerals in Ius Chasma canyon wall, suggesting atmospheric sulfur trapped in ice formed glaciers. The discovery provides evidence of past glaciation in the Valles Marineris on Mars.
The Canadian Medical Association Journal refutes criticisms of the BART trial that showed a substantially increased risk of death associated with aprotinin. The authors argue that regulatory bodies should have mandated a second large trial to confirm or refute the results.
Research from ARC Centre of Excellence for Climate System Science highlights Australia's climate as heavily influenced by global warming. Global warming doubled the chance of intense heat waves, tripled the likelihood of heatwave events and increased extreme summer temperatures across the country.
Researchers tested the effectiveness of caffeine and music as countermeasures to driver fatigue. Caffeine was found to improve both alertness and driving performance, while music had a lesser impact on driving skills.
A global trial involving over 8,000 women has reaffirmed trastuzumab's superiority in treating HER2-positive breast cancer. The study showed that patients receiving trastuzumab had better outcomes than those treated with lapatinib alone, including lower rates of disease recurrence and improved overall survival.
A Wayne State research team is developing new, more efficient catalytic materials to reduce energy consumption in chemical conversion systems. The project aims to create multicomponent catalysts that can improve reaction efficiency and reduce unwanted byproducts.
Researchers at UT Southwestern Medical Center discovered that acetate supplements stimulate the formation of new red blood cells in mice with anemia. This could lead to alternative treatments for anemia, potentially reducing side effects associated with current therapies.
A California law mandating specific nurse-to-patient staffing standards significantly lowers job-related injuries and illnesses for registered nurses and licensed practical nurses. The study found a 32% reduction in injuries for registered nurses and a 34% reduction for licensed practical nurses.
A new large-scale study aims to address knowledge gaps on sexual assault survivors' health outcomes and experiences. Nine hundred women will be enrolled and followed for one year to understand physical and mental health during recovery, as well as interactions with law enforcement, the legal system, and medical care.