Scientists have developed sheets of single-walled nanotubes that generate higher stresses than natural muscle and higher strains than high-modulus ferroelectrics. The carbon nanotube actuators work in aqueous environments, including salt water, and require small voltages to produce large length changes.
The American Psychiatric Association is establishing the first comprehensive guidelines for treating persons with HIV infection and AIDS. The new guidelines will focus on access to care, treatment adherence, education, prevention, and direct mental health services.
Abgenix's Phase II trial shows 56% of patients survived at least 100 days with high-dose ABX-CBL, outperforming low-dose cohort. The company plans a pivotal Phase III clinical trial for ABX-CBL after FDA approval.
A new study by UCSF researchers found that applying well-established business techniques to medical consultations improves breast cancer patients' treatment decisions. Patients reported higher levels of satisfaction, decision quality, and agreement with physicians about their treatment choices.
Researchers at the University of Pittsburgh found that infusing donor bone marrow into the thymus significantly reduces rejection rates, especially with multiple doses. The study also showed promise in pediatric heart transplantation, where the procedure is both safe and feasible.
Researchers found that a small peptide, IM862, showed significant anti-angiogenesis activity in a human clinical trial, resulting in major responses in 37% of patients. The peptide inhibits blood vessel formation and modulates the immune system, offering a potential treatment for Kaposi's Sarcoma with improved safety profiles.
The new device measures worker exposure to carbon monoxide and is more accurate than existing methods. It can be used as an occupational dosimeter or residential passive sampler.
Researchers have demonstrated a faster and safer approach to cancer vaccine therapy, producing encouraging results in melanoma patients. The new method involves using circulating white blood cells and moderate doses of IL-12, showing promise for treating advanced melanoma.
Researchers at Emory University found that 25 patients with depression failed to respond to conventional treatment showed significant improvement after receiving electromagnetic stimulation. The study suggests that rTMS may be a viable option for patients with treatment-resistant depression.
A new study of 27,050 kidney transplants reveals that the need for care within three years increases significantly as the number of mismatched surface markers increases. The cost of care rises by up to 34% with more mismatches, making well-matched organs a more cost-effective option.
A recent study reveals that nearly two-thirds of livers donated by children were transplanted into adults, despite an increase in pediatric donors. This has led to a shortage of organs for children, with alternative procedures like segmental grafts becoming more common.
Researchers have identified specific immune responses in patients treated with high doses of interferon alfa 2b to prevent melanoma recurrence. High-dose IFNa2b modulated the expression of MHC Class II antigens and increased natural killer cell activity, which may lead to better patient selection and therapy options.
Researchers analyzed emissions data from over 2 million vehicles in metro Atlanta, finding that aging vehicles release more pollution as they get older. Fuel-injected vehicles tend to deteriorate slowly, but with people driving longer, catastrophic failures are expected to increase.
A Montana State University study reveals that deer mice visit buildings for food, with a higher infection rate among indoor mice due to denser populations and viral transmission through urine and saliva. The research aims to develop a way of predicting mouse populations in buildings based on environmental factors.
The annual Carnegie Symposium on Cognition will showcase advances and challenges in cognition, instruction, and learning. Experts will explore partnerships between psychology researchers and teachers to improve teaching methods and student outcomes.
A study by the University of Pittsburgh Cancer Institute found that interferon alfa 2b significantly depresses the activity of internal enzymes breaking down narcotics and antidepressants. This may lead to overdose in cancer patients receiving these medications with IFNa2b.
A new product derived from a marine alga has been developed by Marine Polymer Technologies, which can induce blood clot formation and stop severe bleeding. The bandage is lightweight, easy to transport, and has a shelf life of up to two years, presenting less risk for disease transmission.
Researchers developed CMA-676, an antibody-drug conjugate targeting AML cells while sparing normal blood cells. The treatment produces mild side effects and induces remission comparable to standard chemotherapy regimens.
Researchers found that improving kidney function in majority of patients can be achieved by reducing cyclosporine dosage and adding mycophenolate mofetil, potentially slowing kidney deterioration. The study showed an improvement in kidney function in 37 patients over two years.
Hereditary colorectal cancer tumors with high microsatellite instability (MSI) levels show a lack of genes responsible for DNA mismatch repair, vital to DNA replication. This can lead to faulty repair and colon cancer development.
A new study reveals that women have a higher proportion of gray matter to cranial volume than men, while men have more white matter and cerebrospinal fluid. This difference is associated with sex differences in cognitive performance, particularly in spatial tasks.
Researchers found that vaccinated patients had a significantly lower chance of death and relapse compared to non-vaccinated patients. The THERATOPEO vaccine increased specific killing activity against cancer cells, leading to longer remission periods.
A UCSF study reports that melanoma patients with cancer spread to their sentinel lymph nodes have a greater chance of experiencing disease recurrence and mortality. The study found that patients with negative SLN biopsies had lower rates of disease recurrence and mortality.
A retrospective statistical analysis of patients with advanced breast cancer found no survival benefit from high dose chemotherapy and bone marrow transplant. The study analyzed data from over 1,300 patients treated in the 1980s and early 1990s.
Researchers Randolph Blake and Sang-Hun Lee found that humans can group elements into objects based on subtle changes in timing. By analyzing the precise timing of motion in a dense array of pinwheels, viewers could distinguish synchronized groups from individual elements.
Regular churchgoers live longer than those who seldom or never attend worship services. They can look forward to about seven more years of life beyond age 20. The research also revealed that women and blacks can enjoy especially longer lives if they are religiously active.
Researchers at Thomas Jefferson University have found that radiation therapy helps patients with localized prostate cancer live longer. After examining the results of 1560 patients who received radiation therapy alone for prostate cancer, they discovered that those with high-risk disease benefited the most from higher doses of radiation.
University at Buffalo engineers develop virtual-factory software called UB VR-Fact! that allows companies to design and simulate large-scale plants virtually. The software uses mathematical algorithms and models to simulate factory layout, production, and identify potential bottlenecks.
A new study found that mild psychological stress can temporarily increase blood levels of homocysteine, a chemical associated with the development of heart disease. Researchers discovered that brief periods of stress resulted in a sharp rise in homocysteine levels in middle-aged women.
The study identifies a mechanism by which the immune system eliminates dysfunctional T cells, which can lead to autoimmune diseases and cancer. The research suggests that continuous contact with class I MHC proteins is essential for maintaining the balance between cell survival and death.
Researchers at Johns Hopkins University have made a groundbreaking discovery, capturing the first atomic-level resolution of a protein-RNA complex from the ribosome. The study reveals the intricate 3D structure of RNA and how it's held together by a protein lynchpin.
Researchers at University of North Carolina at Chapel Hill and Rockefeller University have discovered that mammalian chromosomes end in loops, also known as telomeres. This finding has significant implications for our understanding of cell aging and cancer, providing a new way to think about molecular mechanisms.
Researchers at the University of Pittsburgh Medical Center discovered that bone marrow-derived cells can differentiate into functional liver cells, potentially repairing or replacing damaged livers. This breakthrough challenges traditional scientific dogma and opens up new possibilities for treating liver diseases.
Researchers analyzed fossilized eggshell samples to determine the impact of human activity on Australian ecology. They found that environmental factors other than climate have significantly influenced the continent over the past 65,000 years.
Researchers at NICHD discovered a gene, Lhx5, that controls the development of the hippocampus, a brain structure critical for learning and memory. The gene's inactivation leads to a malformed brain structure, highlighting its importance in complex brain function.
A recent study found that Duke Forest plots experienced a 25% growth increase over two years under high carbon-dioxide conditions. This suggests that forests could serve as a significant carbon sink, potentially offsetting half of the world's expected carbon dioxide emissions from fossil fuel combustion.
Researchers at the University of California San Francisco have found a way for cells to move accurately, using a dual molecular docking maneuver. However, a pathogenic microbe like Listeria monocytogenes can mimic this system, hijacking the cell's motility protein and causing infection.
Jefferson researchers report progress in using a vaccinia-based vaccine to treat advanced melanoma, with two patients achieving complete remission. The vaccine works by boosting the immune system with granulocyte macrophage colony stimulating factor (GM-CSF), but more research is needed to enhance the treatment.
Researchers have created an artificial capsule, dubbed a polymersome, that imitates many qualities of natural cells. The capsules can be made to encapsulate payloads such as genes or pharmaceuticals and are biocompatible, evading detection by the human immune system.
The American Chemical Society's 32nd Middle Atlantic regional meeting will explore topics such as plastics, environmental protection and medicinal chemistry. More than 700 attendees are expected, with presentations covering the latest research findings.
Children who slept with a night light on before age 2 are at significantly higher risk of developing myopia, with 34% affected compared to 10% who slept in darkness. Eliminating nighttime lighting exposure during early childhood may affect the development of this common form of refractive error.
University of Cincinnati engineer Peter Smirniotis has received a $270,000 NATO Science for Peace grant to collaborate with Russian scientists on degrading toxic chemical weapons. The project aims to minimize environmental harm and potentially lead to a marketable product that can help Russia boost its economy.
A USC study suggests that radiation therapy is not necessary for DCIS patients with margin widths of 10mm or more, and may even be counterproductive due to side effects and costs. Patients with narrower margins may benefit from postoperative radiation therapy.
A case-control study found that frail elderly who received assistive devices and home adaptations had higher levels of independence at the end of a 18-month study. The treatment group spent significantly less on health care, with average costs $14,173 per person compared to $31,610 in the control group.
The Inner Space/Outer Space II Symposium will explore questions of the hour in particle astrophysics, including the origins of the universe and dark matter. The four-day agenda includes presentations on Extra Dimensions, the Accelerating Universe, and Beyond the Standard Models.
University of Hawaii scientists have developed a new method for producing transgenic mammals by injecting DNA into eggs using mouse sperm. The technique, called Honolulu transgenesis, has shown success in producing green mice with a jellyfish 'green gene'.
Researchers have created living nerve cell colonies on silicon chips that can be used to study the brain's functions and potentially develop new prosthetic devices. The colonies, grown from rat hippocampal neurons, can live for extended periods and communicate with each other through a matrix of electrodes.
Researchers analyzed fossilized emu eggshells to create a continuous vegetation record from the Australian interior extending back 65,000 years. The evidence suggests human activity led to dramatic changes in vegetation and rainfall patterns, supporting the burning hypothesis.
A team led by Penn State's Ken Tamminga is using a new approach to regenerate the Nine Mile Run area in Pittsburgh, highlighting the potential of resilient species like Ailanthus and African dung beetles. The project aims to enhance biodiversity and reintroduce native species to create a more sustainable ecosystem.
A team of physicists has devised a general theorem to explain the phenomenon of allometric quarter-power scaling, which describes how biological processes vary in predictable ways depending on an organism's mass. The researchers found that efficient transportation networks, including those in plants and animals, follow this scaling law.
Researchers at Pacific Northwest National Laboratory developed a prototype engineering tool to aid in verifying an aircraft's stealth characteristics. The Holographic 3-Dimensional Radar Camera can be deployed worldwide and provides images of radar reflections to assess the condition of radar-absorbing material.
Scientists discover cytosolic catalase enzyme protects cells from oxidative damage in long-lived worms, offering insight into aging process and potential therapy for nervous system diseases. The study suggests that increasing cellular health through antioxidant measures could extend lifespan, rather than relying on genetic regulation.
Researchers at UT Southwestern Medical Center have developed a novel method to turn off genes involved in telomerase activation, which enables continuous cell division in cancer cells. The study used peptide nucleic acid (PNA) molecules to block telomerase activity, showing significant promise for developing new cancer drugs.
Rice University researchers develop fullerenes that can be cleared from the body and specifically targeted to bone tissue. The findings have promise for medical applications such as nuclear medicine and drug delivery.
Six university teams will showcase their innovative food products, including Sweet Spots, Jammm Singles, and Tater Stuffs. The teams will compete for top honors based on product originality, feasibility, innovativeness, and market potential.
NYU chemist Robert Shapiro challenges existing assumptions about life's universality with a new theory that simple cellular life may arise from organic chemistry and self-organizing systems. He also advocates for continued search for extraterrestrial life in nearby worlds like Mars, Europa, and Titan.
Johns Hopkins engineering undergraduates develop a restraining bar system that could reduce school bus injuries by protecting children without seat belts. The device features a pivoting bar with a manual-release lever, designed to keep children secure during head-on collisions or rollover accidents.
Representatives from IFT, FDA, and industry experts will discuss cooking and food storage time and temperature specifications in restaurants and retail food operations. The forum aims to enhance food safety and quality worldwide through information exchange and knowledge sharing among members.
The new microscope employs a scanning metal tip and infrared wave absorption to identify chemical composition on a nanoscale. The technique has potential for high-resolution imaging with 100 nm or better resolution, expanding its applications in electronics, materials, and biology.
A study by NIH/NINDS scientists mapped a specific brain region responsible for human multitasking behavior, identifying the fronto-polar prefrontal cortex (FPPC) as the key area. This finding suggests that humans have a unique ability to switch between tasks while maintaining working memory and attentional focus.