The discovery of the largest Tyrannosaurus rex skeleton ever found sheds new light on the lives of these massive predators. The specimen, weighing over 40% more than the next largest known taxon, suggests that different types of dinosaurs may have grown to significantly greater sizes than previously thought.
Scientists create novel polymeric material with fullerenes, boosting power conversion efficiency of organic solar cells by three-fold. The new interlayer material improves device stability and electrode performance, overcoming intrinsic problems related to combining hard and soft materials.
A study of 34,776 Finnish vocational school students found that having a close friend or being involved in bullying behavior increased the likelihood of smoking. Adolescents with moderate or poor self-rated health were also more likely to smoke daily.
A recent publication touted genetic risk scores as a tool for identifying patients at high risk of heart disease, cancer, and diabetes. However, a new study questions the value of these scores, finding they have lower accuracy when considering individual patient factors.
A new study finds that preventive medications, such as those for blood pressure and bone health, are frequently continued until death in older adults with cancer. The use of these medications can increase the risk of serious side effects and reduce quality of life.
Scientists have successfully synthesized a 32-gold atom nanocluster with a core of 12 atoms surrounded by a shell of 20 atoms, demonstrating unusual stability. The cluster's geometry and electronic structure rely heavily on interactions with ligands, particularly amido and phosphine groups.
A new study suggests that moderate alcohol consumption may not be beneficial for patients with rheumatoid arthritis. The research found no association between drinking and reduced disease severity or improved quality of life.
A study published in Alimentary Pharmacology & Therapeutics found that older patients with Crohn's disease can be safely treated with combined immunosuppression. The research showed that remission rates were similar between older and younger patients, and there was no increase in side effects in older patients.
A new study examines the link between birth complications and social anxiety symptoms in children, finding that perinatal issues can increase behavioral inhibition and anxiety levels. The research suggests that childhood temperament may be a developmental pathway for this relationship.
Anxiety in childhood and adolescence is associated with a higher likelihood of later alcohol use disorders, according to an analysis of relevant studies. The positive associations were found in approximately 43% of cases, while negative associations were found in 11% of cases.
A recent study found that coyotes are not limiting white-tailed deer populations in eastern US states. In fact, coyote removal programs will have little impact on increasing regional deer numbers.
A new study reveals that high numbers of tourists can lead to aggressive behavior in free-ranging African elephants. Elephant herds are more likely to move away from multiple vehicles and tourist areas when stressed by human presence.
A six-month exercise program improved balance and strength in nursing home residents, resulting in fewer falls and deaths compared to a control group. The intervention also showed a lower prevalence of frailty, suggesting potential long-term benefits for those who engage in individualized physical activity.
A new study found sporadic presence of Legionella pneumophila and Mycobacterium avium in tap water across the US. Microbial persistence was more common in office buildings than residences, with older homes being more prone to L. pneumophila contamination.
A recent study found that at least one skin abnormality affects 64.5% of the adult population, with men being more frequently affected than women. The prevalence of skin diseases increases with age and is associated with significant economic burdens.
A study of 9,048 individuals in Sweden found that respiratory, skin, and urogenital infections significantly increase the risk of developing Sjögren's syndrome. The findings support the hypothesis that environmental triggers play a crucial role in its development.
A new study investigated the impact of high altitude exposure on short-term memory, identifying effects on spatial and verbal memory. The study found that high altitude exposure can lead to deficits in these aspects of cognition, affecting daily functioning.
A new study reveals that osteoarthritis (OA) and rheumatoid arthritis (RA) have comparable impacts on patients when first visiting rheumatologists. Treatment significantly improves RA outcomes, whereas OA experiences a higher burden of disease, highlighting an urgent need for improved treatments.
A new study found that increased tobacco taxes and smoke-free policies in European countries were significantly related to a reduction in smoking among older adults. The association was particularly strong among those between 50 and 65 years old and those with lower levels of education.
Scientists have developed a new, inexpensive method called Cas9n-based amplification reaction that avoids thermal cycles and complicated instruments. The technique uses components from the bacterial immune system to recognize specific DNA sequences and introduce genetic scissors.
Researchers found that younger patients with early-onset colorectal cancer have unique genetic mutations and subtypes of the disease. Patients with predisposing conditions, such as inflammatory bowel disease, also exhibit distinct clinical and genetic characteristics compared to those without such conditions.
Researchers at the Weizmann Institute of Science have developed a chemical storage system based on simple and abundant organic compounds. The system uses ethylenediamine and methanol to store and release hydrogen with high theoretical capacity and efficiency.
A study of 936 asthma patients found that obesity and older age were linked to higher risks of airway closure. Therapies targeting airway closure may be crucial for these patients.
Poorer cognitive function in older adults is associated with poorer oral health and a higher risk of tooth loss. A study of 4,416 UK adults found that those with lower cognitive function scores had a 39% higher odds of tooth loss compared to those with higher scores.
Individuals taking statins may experience higher insulin levels and insulin resistance, leading to a greater risk of developing type 2 diabetes. The analysis found a 38% increased risk among those who used statins for 15 years or more.
Research found social anxiety disorder had strongest association with alcoholism and predicted it over other anxiety disorders. Individuals with social anxiety were at higher risk of developing later alcoholism compared to those with other anxiety disorders.
A study found substantially higher anxiety and depression rates among US adults with atopic dermatitis compared to those without. Virtually all patients with moderate to severe atopic dermatitis had symptoms of anxiety and depression.
A new study found that losing Medicare coverage before the three-year post-transplant mark significantly increases the risk of kidney failure and decreases medication adherence. This has significant policy implications, highlighting the need for healthcare safety nets and access to immunosuppressive medications.
A study of 177,091 Greek children found that nearly one in four skipped breakfast due to unhealthy lifestyle factors. Poor dietary habits, insufficient sleep, and excessive screen time significantly increased the likelihood of skipping breakfast.
A study of 59 individuals with mild-to-moderate knee osteoarthritis found no association between daily walking levels and pain. Alleviating pain does not likely increase physical activity, suggesting strategies focus on overcoming barriers like lack of knowledge and sedentary lifestyle.
A new paper proposes specific scientific objectives for a Mars Sample Return campaign to address fundamental questions about the planet. The study identifies critical measurements that would need to be done on returned samples to maximize their scientific value.
A recent study reveals significant disparities in osteoporosis treatment among elderly Americans, with men and blacks being undertreated compared to women and whites. The findings highlight the need for improved osteoporosis management strategies that address these disparities.
A randomized controlled trial found that resistance training and aerobic training plus resistance training significantly reduced the incidence of type 2 diabetes. The study showed that these exercise programs can be as effective as isolated aerobic training in preventing overt type 2 diabetes.
Patients living with HIV have equal access to optimal cancer therapy, according to a recent study in the journal CANCER. The findings challenge traditional beliefs that HIV infection is a contraindication for intensive cancer treatment.
A new study suggests that social connectedness can act as a protective buffer against the negative mental health effects of cyberbullying. The findings indicate that individuals with stronger social connections are less likely to experience depression, anxiety, and stress due to cybervictimization.
A new study confirms that obesity impairs vitamin D conversion in the liver, affecting its major form in the blood. This finding highlights the need for targeted treatment approaches, such as calcidiol, to address vitamin D insufficiency in obese individuals.
A study of 230,732 women found that long-term smoking cessation reduces the risk of a certain form of rheumatoid arthritis by 37%. This type of RA tends to have a more severe disease course with joint deformities and disability.
Patients with interstitial lung disease often experience significant treatment burdens, including drug-disease interactions. The study highlights the importance of careful evaluation before treatment initiation to minimize complications.
A study of 4,818 patients found that diabetes, morbid obesity, tobacco smoking, and prolonged surgical duration increase the risk of surgical site infections. The overall incidence was 3.64%, with deep and superficial infections occurring at 0.4% and 1.1% respectively.
A new study examines individuals' willingness to adopt algorithms in decision-making contexts, revealing the importance of cognitive perceptions. Participants with low situational awareness were found to be more likely to delegate decisions to an AI algorithm.
A new study finds that the US has the highest rates of drug overdose mortality among high-income countries, with a rate 3.5 times higher on average. The country's overdose death rate has increased rapidly over the past decade, outpacing other nations.
Consuming garlic and onions has been shown to lower the risk of colorectal cancer in a Chinese study involving 833 patients. Adults who ate high amounts of allium vegetables had an 79% lower chance of developing the disease compared to those who consumed low amounts.
A new study suggests that news coverage of terrorist attacks can significantly impact emotional responses and support for anti-Muslim policies in Western countries. News articles featuring a high number of offenders elicit both fear of terror and anger towards the government, leading to increased support for immigration bans.
A recent study found that short-term wood burning in small-scale room heaters and sauna stoves significantly increased residents' daily exposure to particulate air pollution. The study highlights the importance of natural ventilation in reducing indoor levels of hazardous particles.
Scientists have introduced a new efficient synthetic route for marine antitumor agents trabectedin and lurbinectedin. The synthesis consists of 26 individual steps and uses a light-controlled activation mechanism to produce the complex drugs in sufficient quantities.
A recent study found that hundreds of thousands of US women's lives have been saved by mammography and improvements in breast cancer treatment since 1989. The study estimates that cumulative breast cancer deaths averted ranged from 384,000 to 614,500 over the past three decades.
Researchers at Xiamen University have created a device that enables the direct detection and mapping of chemicals inside biological cells. This breakthrough technique, called near-field desorption postionization time-of-flight mass spectrometer (NDPI-TOFMS), overcomes challenges in high-resolution imaging and provides undistorted chemi...
A study of 9,838 LGBTQ teens found that 44-70% reported weight-based teasing from family members and peers, while 1 in 4 teens experienced these experiences at school. The study highlights the need for increased awareness and addressing weight-based victimization in school settings.
A new study estimates that 3.9 million US adults misused prescription opioids annually, with risk factors including co-occurring substance use disorders and psychological distress. Prescribers should be vigilant about potential misuse among patients prescribed potent opioid medications for long-term use.
Acne relapses are associated with impaired quality of life and significant productivity loss, affecting millions of people worldwide. In Metropolitan France, acne relapses result in 350,000 lost days per year.