The Wildlife Conservation Society has discovered a significant increase in western lowland gorillas, with a census showing over 125,000 individuals in the Republic of Congo. The census data revealed high densities of gorillas in some areas, indicating successful conservation efforts and a food-rich habitat.
Endovascular repair, using stent grafts to fix blood vessel injuries, is shown to save more lives and decrease chance of paraplegia compared to open surgery. This minimally invasive technique reduces mortality rates by half and diminishes risk of paraplegia by 75 percent.
A new study suggests that the social context of a person's facial expression and individual attachment style can affect how our brains interpret its social meaning. The study found that happy faces activated reward centers in the brain, but this response was weaker in participants with an avoidant attachment style.
A study by the University of Tennessee investigates the temporal patterns and statistical persistence of total coliform bacteria in a stream. The research found that short-term persistence is dominated by runoff events, while longer-term persistence is likely related to baseflow, or groundwater supply.
Researchers at the University of Montreal and Argos Therapeutics have developed a novel method to create personalized immunotherapy treatments for HIV. The treatment uses dendritic cell-based therapies that stimulate the expansion of HIV-specific T cells, which attack and kill infected cells.
To reduce HIV transmission, radical behavioral change is necessary, involving a range of strategies including increasing HIV knowledge, decreasing risky behaviors, and providing access to treatment. The authors emphasize the need for sustainable commitment and proper resources to implement these prevention strategies.
Researchers argue that structural approaches can significantly reduce HIV risk and vulnerability, particularly in addressing gender inequality and economic dependence. Examples of successful initiatives include needle exchange programmes and empowering sex workers to take control of their own health.
Researchers at the University of Liverpool discovered that an enzyme called telomerase is released by cells in the inner lining of the womb during the menstrual cycle, contributing to endometriosis. The abnormal length of telomeres and expression of telomerase in endometrial cells may lead to severe pain and infertility.
Research shows Vietnam War veterans exposed to Agent Orange have increased risks of prostate cancer and aggressive forms of the disease compared to those not exposed. The study, conducted on over 13,000 men in their 60s, found twice as many exposed veterans developed prostate cancer.
Researchers found that fibrosis occurs rapidly in the gut, limiting drug effectiveness and making it harder to restore immunity. Early treatment can preserve some elements of the immune system by protecting T-cells.
A Carnegie Mellon University brain imaging study found that intensive remedial instruction can permanently rewire the brain to overcome reading deficits in dyslexic students. The study showed increased brain activity in cortical regions associated with reading and neural gains solidified over time.
A study by Emory University researchers found that black girls who use marijuana have significantly higher rates of incident STDs than non-users. Marijuana users also had more sex partners and riskier sex acts, including those with recently released jail partners.
Scientists are studying zebra finches, a type of songbird, to understand how hormones like estrogen impact brain function and behavior. The research aims to uncover the role of synaptically produced estrogen in learning, memory, and neuroprotection.
A University of Georgia study reveals that common herbs and spices can inhibit tissue damage and inflammation caused by high blood sugar. The extracts of 24 herbs and spices were found to block the formation of AGE compounds, which contribute to aging and diabetes.
Social spiders have developed a unique foraging strategy that enables them to capture larger prey despite declining individual catch rates with colony size. This efficiency allows colonies to thrive in tropical areas but dwindle in higher elevations and latitudes.
Researchers at VCU Massey Cancer Center have developed a gene therapy approach that eliminates human pancreatic cancer cells in mice. The therapy combines perillyl alcohol, a natural compound found in citrus plants, with mda-7/IL-24 cytokine to kill aggressive and lethal cancer cells.
Carl Brett, a key figure in UC's paleontology program, has been awarded the second-ever Digby McLaren Medal for his significant international contributions to stratigraphy. The medal celebrates Canadian paleontologist Digby Johns McLaren, who was recognized for his impact theory and advocacy.
Scientists have developed a computer program to analyze human faces for trustworthiness and dominance, identifying key features such as a U-shaped mouth and surprised eyes. This research has implications for various fields, including sales and criminal justice, where facial expressions can greatly impact perceptions.
Researchers have developed a groundbreaking procedure using tailor-made regulatory cells to avoid lifelong drug use for transplant patients. The technique shows promising findings and has been tested in clinical trials on 17 kidney transplant patients, with encouraging results.
Tropical lianas are becoming more abundant with rising CO2 levels, potentially choking out trees. Lianas thrive during droughts, growing seven times faster than trees, raising questions about their role in forest dynamics.
A Dutch school teacher, Hanny van Arkel, discovered a mysterious gaseous object with a hole in the center while classifying galaxy images on the Galaxy Zoo project. Scientists are now investigating this phenomenon, known as 'Hanny's Voorwerp,' which they believe could be a new class of astronomical object, possibly a quasar.
Researchers explore the application of ecosystem services approaches to conservation, finding that preserving these benefits is more economically and environmentally valuable. Studies reveal tradeoffs among ecosystem services and highlight the importance of considering long-term perspectives in management actions.
Researchers recommend using prophylactic antiretroviral (ARV) drugs to reduce infectiousness among HIV-positive individuals. Male circumcision is also shown to significantly reduce the risk of HIV transmission. Providing contraception for HIV-positive women can further prevent mother-to-baby transmission and unintended pregnancies.
Adults who eat eggs for breakfast lose 65 percent more weight and feel more energetic compared to those who eat a bagel breakfast of equal calories. The study also found that blood lipids were not impacted during the two-month study, supporting previous research on the importance of high-quality protein in diet.
Most countries are not effectively targeting their HIV resources, and new strategies must be implemented to improve prevention interventions. The limited data available indicate that many countries are focusing their prevention resources where the epidemics are concentrated, leading to low coverage rates for effective interventions.
A new study from Indiana University and the University of Montreal provides a model for understanding random synchronization in brain neurons. The findings suggest that spontaneous neural activity can help the brain remain flexible and responsive to external events, potentially leading to better treatments for conditions like epilepsy.
A new decision model seeks to minimize the risk of producing ineffective flu vaccines by deferring production and reevaluating strains based on emerging evidence. The model allows for flexibility in the vaccine composition, prioritizing accuracy over timely production.
Researchers at the University of Utah have developed a rapid test for hepcidin, which helps diagnose anemia related to chronic illness and diseases of iron overload. The test can distinguish between causes of iron overload, enabling doctors to provide more accurate diagnoses.
Researchers at Stanford University School of Medicine found that the HIV drug nevirapine persists in the breast milk and blood of infected mothers for at least two weeks, putting them and their babies at risk for developing drug-resistant strains. The study suggests that better combination antiretroviral treatment could prevent this risk.
The Lancet Series on HIV Prevention calls for confident and unified leadership to overcome barriers to effective HIV prevention. The authors urge investment in operational research, HIV vaccine development, and capacity building for national authorities to deliver universal access.
A study by University of British Columbia and Stanford University researchers found that foreign threats can encourage tolerance for diversity domestically while leading to intergroup conflict internationally. Americans endorsed multiculturalism as a domestic policy and assimilation as a foreign policy after the 9/11 attacks.
Researchers created inexpensive blends of pheromones to detect and estimate the population size of invasive pest cerambycid beetles. They identified over 30 species and found reliable characteristics to determine if a new invader uses attractant pheromones.
Researchers found that adult songbirds exposed to a novel environment undergo a significant change in their auditory brain's tuning width, becoming more selective. This process is similar to humans adapting to a new language, with increased sensitivity to fine acoustic details. In contrast, isolation caused the tuning to coarsen.
Children's ability to plan for the future develops around age 4, with 4- and 5-year-olds performing better than 3-year-olds. Additionally, children's current physiological state can affect their ability to imagine themselves in a specific situation, as seen in studies on pretend scenarios and hunger.
The Computation Institute has received a $1.5 million grant to develop the Petascale Active Data Store (PADS), enabling researchers to analyze massive datasets in new ways. The system will provide rich data for computer science research and enable collaborations across disciplines.
The Life Sciences Discovery Fund has awarded $5 million in grants to six Washington State-based organizations for innovative health research projects. These projects focus on prostate cancer imaging, safer in-home environments, recovery from brain damage, and more.
The Lancet series highlights the importance of combination prevention approaches, combining behavioural, medical, and structural strategies. The authors warn that global prevention efforts are woefully insufficient, with fewer than 10% of individuals at risk receiving key services.
New research reveals that a specific dopamine pathway is responsible for the rewarding effects of nicotine. The mesolimbic dopamine system is also linked to addiction in other substances like cocaine and alcohol.
A research team led by Boston University's David Marchant has discovered exceptionally well-preserved freshwater fossils in Antarctica, which reveal the ecological legacy of a unique global climate transition. The findings indicate that tundra and insects went extinct suddenly around 13.9 million years ago due to dramatic cooling.
A study found that sesame seed extract and konjac gum can bind to E. coli and Salmonella bacteria, potentially preventing them from entering host cells. This natural approach may offer protection against gastro-intestinal infections or reduce symptom severity.
A new study identifies a link between warming Indian Ocean and declining rainfall in eastern Africa, impacting food security. The team found that human-caused warming of the Indian Ocean leads to increased rainfall over the ocean, reducing onshore moisture flow and resulting in dry air over Africa.