A comprehensive biological study refutes a long-standing geological fact, showing plants and animals migrated between North and South America nearly 30 million years ago. This new information changes our understanding of biodiversity and climate, both at regional and global levels.
A small clinical trial found that men with advanced prostate cancer and the AR-V7 gene variant respond to chemotherapy just as well as those without the variant. The study's findings may lead to improved treatment decision-making for patients with prostate cancer.
Researchers found that western corn rootworm beetles develop resistance to crop rotation through gene expression changes in their guts, involving immune regulation and antimicrobial functions. The study sheds light on the complex interplay of forces behind rotation resistance and could help develop more sustainable agricultural practices.
Researchers at UT Southwestern Medical Center have identified a key enzyme, Protein Kinase C (PKC), that regulates glucose transport into cells. This process is critical for maintaining proper glucose levels, which are often abnormal in diseases such as diabetes and cancer. The findings may lead to new treatments for these conditions.
Researchers have discovered the 'bicycle spoke' structure of healthy heart cells, which carries an electrical signal through the cell. After a heart attack, this structure is lost and leads to damaged heart muscle and potential heart failure. The study aims to find out why this process happens and develop strategies to intervene.
A new study found that individuals with earlier exposure to moderate light had lower body mass index (BMI) and percent body fat. The study, published in the journal Sleep, suggests changes in environmental light exposure may impact body weight regulation.
A recent study has found that estrogen receptors are almost entirely absent in cervical cancer tumors, but still present in the tumor microenvironment. This finding highlights a critical communication between the microenvironment and tumor cells, allowing the tumor to thrive despite its inability to respond to estrogen.
A new study by Yale School of Medicine researchers found that immediate birth control implant insertion after childbirth is more cost-effective than delaying it to a 6-8 week postpartum visit. The study estimates that immediate contraception can avert 191 unintended pregnancies and save over $1 million in the first year.
The incidence rate of acute traumatic spinal cord injury remained relatively stable between 1993 and 2012, with a slight increase among older adults. The majority of cases were associated with falls, leading to a significant rise in spinal cord injuries among those 65 years or older.
A study analyzing drought, heat, and insects found that a combination of these factors contributes to over 12 million dead trees in California. Researchers expect this number to rise with climate change.
Applicants with disabilities who took MCAT with extra time had no significant difference in medical school admission rates but lower USMLE Step exam pass rates and graduation rates. The redesigned MCAT increases testing time, which may impact predictive scores.
Scientists have identified a key role for gut tissue in programming immune cells, known as monocytes, to either repair or protect the body. The discovery has implications for treating conditions such as inflammatory bowel diseases and certain cancers.
A short educational program in Kenya produced lasting improvements in male attitudes towards women, with participants showing more positive views and less agreement with rape myths. The program also encouraged males to intervene in cases of violence against women.
Researchers at Salk Institute found that a low glycemic index diet reduced symptoms of autism in mice, including impaired social interactions and repetitive behaviors. The diet may influence gut bacteria and inflammation, which are linked to the development of autism.
Induced earthquakes, caused by injecting fluids into the earth, are increasingly felt in the US. Research reveals that most of these earthquakes stem from oil and gas wastewater disposal, not hydraulic fracturing. Experts recommend proactive approaches to mitigate seismic risks.
Researchers found that pre-election polls can influence voter behavior, leading to biased electoral results. A study on French elections showed that exit polls influenced voters in territories, resulting in higher turnout and a 'bandwagon effect'. This insight suggests that polling errors can sway election outcomes, even in the UK.
A young woman has become the first to give birth naturally after doctors transplanted frozen ovarian tissue from her removed at age 13. The procedure restored her fertility and allowed her to conceive without assisted reproduction.
Researchers discovered that chronic pain causes brain inflammation, altering mood and motivation regions. A new treatment approach may help restore dopamine release and reward-motivated behavior in patients with chronic pain.
A study from Cornell Food & Brand Lab reveals that buying too much food, preparing in abundance, and improper storage lead to significant household food waste. Implementing efficient meal planning strategies and proper food storage techniques can significantly reduce waste and save money.
A University of Pittsburgh-led consortium has received a $200,000 grant to explore the use of bamboo as a safe and sustainable construction resource in urban areas. The research aims to reduce the environmental impact of housing while addressing global grand challenges of urbanization and resilience.
A study published in ACS Central Science reveals how the chemical composition of ocean aerosol particles influences their ability to form clouds. The new method categorizes particles based on their likelihood of taking up water, providing a more precise measure of cloud-formation potential.
A new study combining data from two large trials suggests that one dose of the bivalent HPV vaccine may be sufficient to protect against most cervical cancer cases, with high efficacy seen in women receiving one, two, or three doses. The findings have significant implications for global health, particularly in resource-poor settings wh...
A new study by NIH researchers compares the Makona strain of Ebola virus to the original 1976 Mayinga strain, revealing a decreased ability to cause disease in West Africa, with liver damage and rash appearing two days later than in the 1976 strain.
A new study by MIT scholars finds that juvenile incarceration significantly lowers high-school graduation rates by 13 percentage points and increases adult incarceration by 23 percentage points. The research project analyzed tens of thousands of teenagers in Illinois, using a natural experiment to isolate the effects of sentencing on k...
A new measurement and modelling tool can predict coronal mass ejections with more than 24 hours' notice, improving forecasting of geomagnetic storms that affect GPS technology, utility grids, and satellite systems.
UC Davis researchers identified molecular interactions between capsaicin and the TRPV1 receptor, paving the way for more selective and effective pain relief drugs. The study found that sweet peppers contain a compound called capsiate, which is almost identical to capsaicin but differs at one key interaction site.
Researchers found that GLP-1 receptor activation decreases anticipatory food reward, reducing cravings, and increases feeling of food reward during consumption, reducing overeating. The study suggests a potential therapeutic target for substance abuse disorders, offering new insights into the mechanisms of obesity.
A study published in JAMA found that rotavirus vaccination led to a 31-55% decline in all-cause acute gastroenteritis hospitalizations and a 70-94% decline in rotavirus-coded hospitalizations among US children under 5 years old. The greatest reductions were observed among younger age groups.
A team of astronomers has discovered a massive star cluster in the NGC 5253 dwarf galaxy, containing over 7,000 massive O-type stars. The cluster, dubbed Cloud D, is incredibly efficient at forming stars and creating dust, with a gas cloud rate that is ten times greater than in our own Milky Way.
A team of researchers from the University of Freiburg has discovered how the toxins of Clostridium difficile bacteria enter the interiors of cells. The surface protein LSR receptor is responsible for binding to the CDT toxin, allowing it to penetrate the cell membrane and exert its lethal effect.
Scientists have isolated the smallest unit of sleep, discovering that it originates from small neural networks. The research, published in European Journal of Neuroscience, allows for the independent isolation of sleep for research without physiological factors.
A cluster randomized controlled trial in Ethiopian children found that promoting handwashing with soap significantly reduces intestinal parasite re-infection rates, with a 14% re-infection rate compared to 29% in non-handwashing groups. Additionally, weekly nail clipping interventions also showed efficacy, particularly when combined wi...
Scientists at the National Oceanography Centre have discovered a new fundamental rock property that allows electricity to flow more easily through sedimentary rocks in the vertical direction. This finding will improve the interpretation of geological fluid flow from geophysical surveys.
Researchers tracked tiger sharks traveling over 7,500 kilometers round-trip between the Caribbean and mid-North Atlantic annually. The study's findings have significant conservation implications for protecting these apex predators.
The new sensor can track changes in mass of a few kilodaltons in real time, enabling early diagnosis of diseases like cancer. It detects biological objects, such as viral disease markers, through cantilever oscillations, making it a highly sensitive and scalable technology.
Researchers question the validity of US dietary guidelines citing memory-based dietary assessment methods and their inability to accurately capture food consumption. Experts counter that multiple data sources can mitigate these issues, providing a more accurate representation of dietary habits.
A study found that umbilical cord stem cells from children born to obese mothers have a 30% higher fat content compared to those from normal-weight mothers. This suggests an inherent propensity towards more fat accumulation in the offspring's cells, potentially leading to insulin resistance and metabolic disease.
The partnership aims to enhance the operation and development of testing facilities, enabling better understanding of wind turbine drivetrain systems. The collaboration will also promote public-private partnerships and workforce education in the energy industry.
Chaoming Song, assistant professor of physics at the University of Miami, was awarded the 2015 Erdos-Renyi Prize for his influential work on network science. His research has a significant impact on various areas of Network Science, including statistical physics, biological science, and computational social science.
Researchers have developed a novel approach using liposomes to prevent the onset of Type 1 Diabetes in mice, offering a promising candidate for human vaccination. The technique avoids damaging insulin-producing pancreatic cells and induces immunological tolerance, providing a potential solution for this incurable disease.
A new study published in the Journal of Parenteral and Enteral Nutrition found that credentialed providers have a significantly higher understanding of nutrition support practice. The study's results showed that credentialed providers answered 6.18 out of 8 questions correctly, compared to non-credentialed providers who answered 4.56 q...
A new study found that girls who perceive their mathematical ability as strong and open to growth are more likely to pursue careers in math-intensive fields. Schools, families, and policymakers can help shift perceptions to increase female participation in STEM fields.
A new study reveals that humans deliberately caused about a third of floods in southwestern Netherlands between 1500 and 2000. The deliberate flooding was used as a tactic during the Eighty Years' War, with significant changes to the landscape resulting from these inundations.
A research group at Disney Research Pittsburgh developed a computer vision system that continuously improves its ability to recognize objects by picking up hints from videos. The system outperformed other methods in detecting various objects, including microwave ovens and stoves.
The STAR collaboration has observed a 'chiral magnetic wave' rippling through the quark-gluon plasma created at RHIC's energetic particle smashups. This finding provides evidence for the chiral magnetic effect, a quantum phenomenon causing electric charge separation along the axis of a magnetic field.
A Chinese research team proposes a novel approach to verify the correctness of high-speed train control systems, combining simulation and formal verification. The method models the system using Simulink/Stateflow and then transforms it into a formal Hybrid CSP model for verification, advancing the state-of-the-art in verifying train co...
Researchers have identified glass formations on Mars that could preserve signs of ancient biological activity. The glass-rich impactites found by Kevin Cannon and John Mustard are preserved on billion-year timescales and could provide a promising target for searching for possible ancient Martian life.
A new NYU study finds that healthcare workers' wages are only slightly higher than those in other sectors, and professional staff like doctors and nurses earn more due to their education and experience. To contain healthcare costs, the study suggests improving productivity through using fewer or less-skilled employees to produce services
A $3.5 million grant will support 100 first-grade classrooms in Sacramento and Houston, teaching specific skills to struggling readers. The program aims to improve both basic reading skills and comprehension, with preliminary data showing a positive impact on struggling readers.
A new molecular imaging agent has been developed to detect prostate cancer that has spread to other tissues. The agent targets the PSMA enzyme, which is associated with prostate cancer, and has shown high accuracy in detecting disease sites, including those not identified by conventional methods.
Researchers at Woods Hole Oceanographic Institution discovered that methane formation occurs independently of venting process and is produced on geological time scales deep beneath seafloor. Abiotic compound formate is formed during vent circulation process, providing evidence for purely chemical processes in origin of life.
Scientists at the University of Illinois have discovered a way to manipulate magnetic information using heat. They create a separation of electron spins in a magnetic material, generating a spin current that can be used to control nanomagnets.
A new study found that calcineurin inhibitor-based medications used by organ transplant recipients significantly lower the prevalence of dementia and Alzheimer's disease compared to national data. The research suggests that this treatment strategy may offer a protective effect against the development and progression of Alzheimer's.
The ELIXA study found no increased risk of cardiovascular death, heart attack, stroke, or heart failure in patients with type 2 diabetes taking lixisenatide. Lixisenatide also showed a modest benefit for weight control and no increase in hypoglycemia or pancreatic injury risk.
Researchers identify a new autophagy receptor, FAM134B, which ensures proper breakdown and disposal of dysfunctional endoplasmic reticulum. Mutations in FAM134B cause rare hereditary disease HSAN II, highlighting the importance of autophagy in cellular quality control.
A specialized PET tracer has been developed to visualize the function of nerve cells that lead to neuronal loss and cognitive decline in neurodegenerative diseases. The tracer binds to a transporter of the neurotransmitter acetylcholine, allowing for the quantification of cholinergic neuron loss and its effects on cognition.
A nationwide study reveals a significant rise in marijuana exposure among children under 5, with over 75% of cases involving ingestion. The study calls for states to include child safety measures in their laws when considering marijuana legalization.
A survey of nearly 3,000 low-income adults in Arkansas, Kentucky, and Texas found that state policies significantly affect awareness, application rates, and successful enrollment under the Affordable Care Act. Latinos were less likely to complete the application process compared to non-Latino whites.
Researchers have developed three new MRI agents that successfully target the prostate-specific membrane antigen (PSMA) biomarker in multiple cancers. PSMA is found in both primary and metastatic prostate tumors, as well as in newly developing blood vessels of many non-prostate cancers.
Scientists at Scripps Research Institute found that a natural compound called leinamycin (LNM) E1 can be activated by reactive oxygen species, leading to DNA damage and cell death in cancer cells. The study reveals promising therapeutic potential for LNM E1 against prostate and other cancers.