Researchers at the DOE's Princeton Plasma Physics Laboratory used computer simulations to explain how plasma doughnuts became hollow when current direction was reversed. This new understanding allows for a more practical design of compact next-generation fusion experiments.
A 7.9 magnitude earthquake on Alaska's Denali fault system created a 145-mile scar across the landscape, with measurable offsets of up to 22 feet. The earthquake revealed new surface ruptures, clearly developed scarps and cracks where faults pass beneath glaciers.
Researchers have developed a high-speed encryption protocol using noisy light to secure information, promising unconditionally secure, fast, easy-to-manage, and cost-efficient security. The Northwestern method transmits encrypted data at 250 megabits per second, outpacing conventional cryptography and existing quantum methods.
A new study published in Obstetrics and Gynecology found that aspirin inhibited ovarian tumor cell growth by as much as 68 percent. Combining aspirin with a monoclonal antibody targeting the HER-2/neu protein resulted in an even greater suppression of growth, decreasing cancer cell growth by 84 percent.
Researchers at Duke University Medical Center found that exercise, regardless of intensity or fitness level, can improve cholesterol levels by increasing the size of particles carrying good and bad cholesterol. The study also showed that standard lipid panels may not accurately measure risk of heart disease.
Researchers found that naked mole-rats, living up to 20 years in the wild, outlive other similar-sized rodents by a factor of 10 due to reduced extrinsic mortality. Their remarkable longevity is linked to their subterranean lifestyle and cooperative defense against predators.
A study by Northwestern University found that aging slows brain activity in language areas, particularly in the left front lobe and parietal cortex. However, this decrease is associated with increased processing efficiency, as older adults perform equally well on language tasks compared to younger counterparts.
A new study aims to prevent urinary incontinence in women after childbirth by promoting spontaneous pushing and daily perineum massage. The research, funded by the National Institutes of Health, hopes to empower women with tools to have a natural birth experience.
Researchers at UW-Madison have identified the PIPKI?661 enzyme as a promising target for preventing cancer cells from metastasizing. By inhibiting this enzyme, cancer cells' ability to migrate to other parts of the body can be blocked.
Seven companies successfully innovate and outperform established firms, despite economic challenges. These startups and spinouts leverage unique strategies to build success, including Actimmune and fluorous products.
Researchers found that asthma patients frequently move between severity categories, with no single parameter reliably predicting overall severity. This variability may lead to underestimation or overestimation of asthma severity, emphasizing the importance of proper management and daily maintenance treatments.
Physicists have developed a technique to measure magnetism at the atomic scale using a scanning tunneling microscope, enabling potential applications in futuristic electronic and magnetic devices. This breakthrough could lead to advancements in spintronics, quantum computing, and more powerful hard drives.
Researchers found that a cholesterol drug, atorvastatin, reduced paralysis and suppressed attacks in mice with multiple sclerosis. The study suggests that the drug could prevent progression to definite multiple sclerosis in individuals who have had a first attack.
The book, Small Is Profitable, explains how properly sizing and siting electrical production can significantly increase the value of electrical resources. This leads to improved system planning, service quality, and avoided societal costs, making seemingly expensive technologies economically viable.
Researchers found that stimulating the prefrontal cortex in rats reduces fear responses by mimicking the brain's safety signal. The study suggests a new approach to treating anxiety disorders by using transcranial magnetic stimulation to control fear.
Researchers at Children's Hospital of Philadelphia achieved immune tolerance in mice through prenatal stem cell transplants, enabling donor cells to multiply without toxic side effects. The technique could greatly broaden the use of cell and organ transplants for genetic diseases detected before birth.
The Jordan Report 20th Anniversary outlines significant advancements in vaccine research for diseases like HIV/AIDS, tuberculosis, malaria, and bioterrorism threats. The report emphasizes the importance of vaccines in preventing illness and death from infectious diseases.
Researchers discovered identical organizing principles in genetic, neural, and food networks, revealing potential strategies for information processing and filtering noise. The study's findings have significant implications for understanding complex systems and could lead to breakthroughs in fields like medicine and electronics.
Preliminary study finds that modified structural steel connections may fail under small bomb blasts, compromising building stability. Researchers aim to address issues and consider progressive collapse of multi-story buildings.
A new study by Scripps researchers reveals that phytoplankton capture and absorb solar radiation, contributing to a global warming of 0.1-0.6 degrees Fahrenheit. The findings challenge iron fertilization efforts aimed at reducing global warming, suggesting this approach may actually contribute to warming the ocean.
A recent study led by UC Davis finds that syringe-exchange programs significantly reduce HIV risk behavior among injecting drug users. The research shows a two-fold to six-fold reduction in risk behaviors for users with and without access to clean syringes, respectively.
A clinical trial led by Dr. Joseph Friedberg at Thomas Jefferson University Hospital is exploring the effectiveness of photodynamic therapy (PDT) on non-small cell lung cancer, with patients showing survival times between three and four times the usual six to nine months after surgery.
The Center will develop the environmental public health tracking network with the CDC, linking environmental protection efforts to public health surveillance. The initiative aims to track exposures to environmental hazards and develop sound policies to prevent disease.
A study found that Advair Diskus can reduce inhaled corticosteroid doses by 60% without compromising asthma control. The treatment, which combines an inhaled long-acting bronchodilator and corticosteroid, was shown to improve pulmonary function, symptom-free days, and albuterol use in patients requiring higher doses of corticosteroids.
Researchers found that changes in SSTs affect the Madden Julian Oscillation, a key driver of South Asian monsoons. The study suggests that warmer sea surface temperatures can predict up to 30% of MJO fluctuations.
Exposure to inhaled corticosteroids was associated with a decreased risk of death and longer survival in patients with chronic obstructive pulmonary disease (COPD). ICS plus salmeterol combination showed significant reduction in mortality risk.
Scientists identified the arcuate nucleus in the hypothalamus as a key regulator of body weight, using a new method pioneered by OHSU researchers. Introducing peripheral hormone PYY 3-36 led to a significant reduction in food intake in both mice and humans, with participants feeling less hungry and eating fewer calories.
Researchers found that marked crosswalks increase the risk of injury for older adults, who face a 3.6 times greater risk when crossing at intersections without traffic signals or stop signs. The study suggests that older pedestrians should avoid relying on marked crosswalks and instead use signals or signs to identify safe crossing areas.
A new study by Wake Forest University School of Medicine has confirmed the existence of diastolic heart failure, a condition that affects older adults' quality of life and exercise capacity. People with this condition experience severely reduced physical ability and increased neuroendocrine activity.
JASON II, a $2.5 million project, begins science operations with enhanced manipulative, sampling, thrust and payload capabilities. The system allows researchers to work in new ways, increasing productivity and enabling real-time analysis of ocean floor data.
Research finds high-intensity ICU staffing associated with lower hospital mortality in 94% of studies. Intensivist-directed care also reduces ICU stay duration in 78% of applicable studies. The US ICU needs more intensivists, with only 10% requiring primary physician expertise.
A study of 16 patients with active multiple myeloma found that FDG PET scans accurately identified those at high risk, revealing disease spread outside the bone marrow. The scan also showed promise in identifying new disease sites for patients with relapsing disease, suggesting its potential as a complementary diagnostic tool.
Researchers found that hospitals with more critical care specialists had significantly lower ICU and hospital death rates and lengths of stay. The study estimates that this increased mortality rate reduction could save up to 162,000 potential lives annually.
Scientists have developed a new, non-invasive method to study neurochemistry and behavior in animal models of neurological and psychiatric diseases. The microPET technique allows researchers to measure dopamine receptor levels in living animals, providing insights into disease progression.
A NASA study analyzed satellite data from 1997-2000 and found that the transition from El Nino to La Nina reversed rainfall patterns in Africa, affecting vegetation greenness. This reversal has implications for agriculture, livestock farming, and vector-borne disease outbreaks.
The National Institute on Drug Abuse (NIDA) has awarded a total of $4.5 million to create a community-based drug abuse prevention trials network. The grants will support multi-site studies of evidence-based interventions aimed at preventing substance abuse in urban school settings.
Researchers found that PC-SPES reduced the effectiveness of paclitaxel treatment in both androgen-sensitive and androgen-independent models of prostate carcinoma. Consumption of garlic, chives, and other allium vegetables may be associated with a reduced risk of prostate cancer.
Researchers found that estrogen replacement therapy improved memory performance in rats with ovaries removed, but not when specific cholinergic neurons were destroyed. The study suggests that estrogen may help reduce the risk of Alzheimer's-related dementia in postmenopausal women by affecting these neurons.
Researchers found that anti-inflammatory agents are more effective in patients at higher risk of death from sepsis. Spiral computed tomography (CT) scans can help identify up to four times more lung cancers than chest x-rays, with 70% of tumors still in Stage 1.
Researchers found that patients with diastolic heart failure have severely reduced exercise capacity and quality of life, similar to those with classic congestive heart failure. The study supports the existence of a second type of heart failure, highlighting the need for intensive research and treatment development.
The center aims to develop effective teen drug-abuse prevention programs by integrating theories and methods from diverse areas, including neurobiology, epidemiology, and social network analysis. Researchers will train investigators to incorporate approaches used by researchers in other disciplines.
A study using an electronic nose found good correlation between actual and predicted pneumonia scores in critically ill patients. The device can help diagnose ventilator-associated pneumonia more quickly than traditional methods.
Researchers at Thomas Jefferson University have successfully converted human neural stem cells into dopamine-making neurons in a laboratory setting. Approximately 25% of the stem cells were able to produce the enzyme tyrosine hydroxylase, which is necessary for dopamine production. The breakthrough could potentially lead to the develop...
Researchers have discovered that nerves from the sympathetic branch of the nervous system (PSNS) are connected to fatty tissue, influencing its growth and function. This finding may lead to a better understanding of obesity-related conditions such as type II diabetes and high blood pressure.
A new research network aims to develop and test integrated approaches to treating incarcerated individuals with drug abuse disorders. The National Criminal Justice Drug Abuse Treatment Study (CJ-DATS) will forge partnerships among NIDA, researchers, and practitioners to provide evidence-based treatment services.
The National Institute on Drug Abuse has awarded $2 million to fund research on inhalant abuse, focusing on epidemiology, risk factors, and health consequences. The new studies aim to address the severe lack of research-based information on this widespread problem affecting young children.
The University of California, Santa Barbara researchers are tackling the challenge of integrating all-optical wavelength converter technology on a single chip. They aim to develop an approach that can simultaneously handle digital and analog signals, paving the way for future photonics system integration.
Gaby, a dedicated chemistry teacher, has developed problem-based learning activities that utilize real-life experiences to enhance students' motivation. Her approaches have led to numerous student awards and scholarships, solidifying her reputation as an outstanding educator.
A recent study estimates that producing a single two-gram chip requires at least 3.7 pounds of fossil fuel and chemical inputs, contradicting the concept of dematerialization. The high-energy consumption is attributed to the low entropy of microchips, which are manufactured from highly organized starting materials.
The DARE concept uses balloons with a StratoSail device to control their path in strong atmospheric winds, enabling pole-to-pole exploration of Venus and Titan's atmospheres and targeted observations of Mars and Jupiter's Great Red Spot.
Researchers have discovered a vector using E. coli and Listeria to promote health, with six mice remaining tumor-free for over 90 days after vaccination. The killed bacterial formulation primes the immune system against diseases like cancer.
A study using MRI found that procedural learning and declarative learning activate the same neural networks, despite requiring different levels of awareness. The brain's prefrontal cortex, inferior parietal cortex, and putamen were active in both cases, suggesting a shared underlying network.
A new testing method for Johne's disease has been developed, allowing farmers to classify test results into five levels and make more informed decisions about cow management. This method enables the efficient handling of a large number of samples and saves farmers money by reducing the need for fecal culture tests.
Researchers found that HIV-specific killer T cells in asymptomatic individuals can recognize and kill both laboratory strain and autologous virus-infected target cells. However, these cells in symptomatic patients with AIDS are no longer effective against their own mutated virus.
A recent study published in the Journal of the National Cancer Institute found that a high-fiber diet did not affect the recurrence rate of adenomatous polyps in participants. The researchers separated the participants into four groups based on their baseline fiber consumption and calculated the risk of polyp recurrence in each group.
A study found that herpes simplex virus-2 (HSV-2) infection may increase the risk of invasive cervical cancer, particularly when combined with human papillomavirus (HPV) infection. The study analyzed data from seven countries and detected HSV-2 antibodies in nearly half of women with cervical cancer, but not in most women without the d...
A new study reveals dispersin, a protein on the surface of E. coli bacteria, helps promote its ability to survive and spread in the gut. Dispersin is now being explored as a potential vaccine candidate due to its strong immune response-provoking properties.
Researchers aim to make substance abuse treatment more accessible and effective in community settings by adapting existing therapies. The NIDA initiative tests innovative approaches, including brief family therapy, computer-based training, and community reinforcement methods.
New devices can control the motion of magnetic flux quanta, allowing for precise manipulation of magnetic fields within superconducting materials. This enables the creation of specific magnetic profiles, facilitating applications such as removing unwanted flux and magnetically focusing nearby particles.
A study published in the Journal of Clinical Investigation found that HIV-specific killer T cells in AIDS patients are remnants of a once-effective response early after infection. The high number of these cells can no longer recognize mutated autologous virus, leading to disease progression.