The study reveals that the Notch protein activates GATA2 gene to produce hematopoietic stem cells and regulates its expression through HES-1 repressor. This basic circuit is essential for generating limited production of GATA2, necessary for hematopoietic stem cell production.
A new study suggests that early diagnosis and treatment of Hepatitis C in intravenous drug users can prevent many transmissions by identifying 'super-spreaders' who are highly infectious. By understanding how the virus spreads in these individuals, researchers hope to develop targeted interventions to stop its spread.
Researchers at NYU's Center for Soft Matter Research have developed a method to move and assemble microscopic particles using blue light. This innovation has the potential to create new materials and enhance the design of industrial products like electronics.
A coronal mass ejection erupted from the sun on January 31, 2013, leaving the sun at speeds of around 575 miles per second, which is a fairly typical speed for CMEs. This event had historically mild effects but could cause geomagnetic storms if it connects with the outside of the Earth's magnetic envelope.
A study of 80,000 interactions among college students found that high achievers formed strong connections with peers and exchanged information in complex ways. Low-performing students were often shut out of these groups, leading to lower grades and higher dropout rates.
The VISIONS mission aims to study the auroral wind by launching a sounding rocket into the Northern Lights. The rocket will observe oxygen atoms flowing out of the atmosphere and provide insights into how they gain energy to escape Earth's gravity.
A team of scientists has described 24 new species of dipterans belonging to the Quichuana genus, doubling the number of documented species in this genus. The discovery is especially important for establishing conservation methods due to the insect's relationship with its plant development environment.
Researchers at the University of California, Berkeley have discovered a sirtuin protein that can reverse age-related degeneration in mice by rejuvenating aged blood stem cells. The study provides new hope for targeted treatments for age-related diseases and opens up possibilities for a 'molecular fountain of youth'.
Researchers identified stable haploid strains of Candida albicans, enabling the targeting of individual genes for screening and speeding up the discovery of treatment targets. This breakthrough fills a 100-year gap in understanding this important pathogen's life cycle and may accelerate efforts to cure Candida infections.
A high-resolution map of gene regulatory elements in the brain has been created, identifying thousands of enhancer sequences that amplify gene expression. The atlas provides critical information for studying neurological disorders and brain development.
A new analysis of vegetation change over 12 million years reveals that grasslands dominated the landscape, challenging the idea of bipedalism as a response to forest encroachment. The study provides insights into the environment and plant life in Africa's Rift Valley during human evolution.
Researchers have developed a potential antidote for cyanide poisoning that can be administered by intra-muscular injection, reducing the need for trained personnel and increasing efficiency in mass casualty events. The discovery of sulfanegen TEA offers a promising alternative to existing intravenous infusion-based treatments.
Candida albicans, a common human fungus, has been found to possess the ability of sexual reproduction through haploid isolates. This breakthrough could provide insights into how it evolves and transform from harmless to deadly. The discovery also paves the way for genetic studies and potentially modified diploid strains.
The lipid molecules of membranes, also known as phospholipids, form a bilayer with heads pointing outwards and fatty acid chains hanging inwards. Scientists have discovered enzymes that transport phospholipids across membranes, allowing for the alignment of biomembranes during cell division.
A study by MIT and LSE found that migrants from certain countries may be up to 40% less likely to gain citizenship due to biases in the voting process. Despite this, interactions with immigrant groups can help reduce prejudice over time.
Cyclone Felleng intensified on Jan. 30, with sustained winds near 115 knots (132.3 mph), threatening both Madagascar and La Reunion. The storm is creating dangerous seas with wave heights up to 38 feet.
Researchers discovered that homing pigeons rely on 'loft-specific infrasonic map cues' to navigate, which are disrupted when release sites are shielded from these low-frequency signals. This finding resolves a long-standing puzzle and sheds new light on the birds' impressive navigation abilities.
Scientists at Forsyth Institute have made a groundbreaking discovery about latent tuberculosis, finding that the bacteria can lay dormant in bone marrow stem cells. This understanding has significant clinical implications, explaining why patients with TB remain sensitive to tests and treatment is so challenging.
A new study published in the American Sociological Review found that sex frequency is linked to the types of household chores each spouse completes, rather than just the division of labor. Married couples who follow traditional gender roles around the house reported greater sexual frequency.
A new study by the American Sociological Association found that married men who spend more time on traditionally female household tasks report having less sex. The research also suggests that couples with more egalitarian divisions of labor have higher sexual frequency, highlighting the importance of socialized gender roles in marriage.
A study published in Journal of Youth and Adolescence reveals that peer competition, rather than exposure to thin media ideals or social media use, is a significant predictor of body dissatisfaction and eating disorder symptoms among adolescent girls. Peer competition was found to predict lower life satisfaction as well.
NREL has received four fuel cell hybrid vehicles on loan from Toyota to enhance its research on hydrogen fueling infrastructure, renewable hydrogen production, and vehicle performance. The vehicles will be used to observe extended durability and reliability, critical for commercial success.
Scientists from Nanyang Technological University (NTU) have developed a revolutionary laser cooling system that can cool semiconductors to extremely low temperatures, potentially replacing harmful refrigerants in air-conditioning and refrigerators. This technology has far-reaching implications for various industries, including healthca...
Researchers at the University of Pennsylvania have developed a new microscopy method to study wear at the atomic scale. They successfully demonstrated the transfer of material from one surface to another, revealing the mechanisms behind this process. The findings provide crucial insights into improving nanoscale devices and machines.
Scientists review 'metabolite damage-control' to understand how cells repair damaged metabolites and prevent fatal diseases. The field is in its infancy, with many unidentified reactions waiting discovery.
A team of researchers at UC Irvine has discovered a rare and promising binding site on the mutant p53 protein that can be targeted by cancer-fighting drugs. This finding may lead to the development of a universal treatment approach for multiple types of cancers, including those of the lung and breast.
Dual-identity immigrants who perceive their cultural identities as incompatible are more likely to sympathize with radical political action, according to new research published in Psychological Science. This finding holds true for both Turkish and Russian immigrant groups.
A team of researchers from the University of York analyzed snail shells from Mediterranean caves to study past humidity levels. The findings show that the western Mediterranean was warmer and stickier when first farmers arrived in Italy and Spain thousands of years ago.
A study of young twins in Malawi reveals that dysfunctional gut microbes contribute to severe acute childhood malnutrition. The researchers found that feeding malnourished children a high-calorie, nutrient-rich food temporarily improved their gut microbiomes, but the benefits were short-lived. The findings suggest that repairing gut mi...
A Concordia librarian advocates for open source technology to make academic journals freely available, reducing subscription fees. The initiative aims to ensure institutional support for long-term sustainability and promotes the mission of libraries to support scholarly research.
Researchers have made significant progress in producing hydrogen fuel from water using enzymes inspired by bacteria. Their artificial catalyst is stable and efficient, making it a cost-effective way to produce hydrogen.
A new DNA study from the University of Texas at Austin provides genetic evidence for the impact of Aztec imperialism on Mesoamerican populations. Researchers found that the pre-conquest maternal aDNA did not match those of the post-conquest era in Xaltocan, suggesting significant genetic changes
Researchers found juvenile bonobos (ages 3-7) displayed more consolation behavior than adults, suggesting sensitivity to emotions emerges early without advanced thought processes. Bonobos raised by their biological mothers showed higher comfort levels towards others.
Lakewood High School Team 1 won the Colorado High School Science Bowl, defeating Cheyenne Mountain High School Team 1 with a score of 38-16. The team will compete against over 400 students from 70 high schools in Washington D.C. for the national title.
Researchers found that people naturally switch between walking and running when given optimal travel times, resulting in energy savings. The 'transition region' between 4.5-6.7 miles per hour showed consistent use of a mix of both gait patterns.
A powerful cold front is sweeping across the eastern United States, replacing spring-like temperatures with winter-time weather and producing powerful storms. The NOAA GOES-13 satellite captured a stunning image of the storm system on January 30, showing a line of clouds stretching from Canada to the US Gulf Coast.
A collaborative study by researchers with the U.S. Department of Energy has shown that an ionic liquid proven to be effective for pre-treating individual biofuel feedstocks is also effective at pre-treating multiple different feedstocks that have been mixed and densified into a blend. The study found that blending and densifying a wide...
A large-scale study reveals that parasites and inadequate prenatal care contribute significantly to epilepsy prevalence in sub-Saharan Africa. The research found that adults with parasitic infections were 1.5-3 times more likely to have epilepsy than those without exposure.
A study found that TV viewing and lack of exercise at age 16 increases the risk of metabolic syndrome, type 2 diabetes, stroke, and cardiovascular disease by adulthood. Excessive leisure-time physical activity, like watching TV, is linked to disease risk independent of exercise habits.
A new study from the University of Oxford found that vegetarians have a 32% lower risk of hospitalisation or death from heart disease compared to meat-eaters. The study analyzed data from almost 45,000 volunteers and found that vegetarian diets were associated with lower blood pressures and cholesterol levels.
Researchers at Sahlgrenska Academy found that potty training from birth can improve bladder control and reduce the risk of urinary tract infections in Vietnamese babies. This technique involves a special whistling sound to remind the baby when it's time to urinate, allowing for early elimination of diapers.
Researchers at Benaroya Research Institute found that IL-6 signaling pathway proteins may serve as novel biomarkers for MS disease activity and a potential therapeutic target. The study discovered that T cells in patients with active MS were more sensitive to IL-6, which could lead to new therapies targeting the IL-6 pathway.
Research published in PLOS ONE shows that chimps can learn more efficient ways to use a tool by watching others. In an experiment, chimps were given juice-boxes with small holes and straws to drink with, and those that watched peers demonstrate the more efficient 'straw-sucking' technique switched to using it.
The International Society of Hymenopterists and Pensoft Publishers' switch to open access has led to a flexible schedule allowing an unlimited number of published articles per year. This change has also facilitated public outreach through press releases and social media, increasing the research's popularity.
Researchers at California Institute of Technology have identified a specific class of skin sensory neurons that react to massage-like stroking, paving the way for further study of pleasurable sensations. The discovery uses genetically modified mice and novel recording techniques to pinpoint individual neurons activated by touch.
A new population modelling approach contradicts the widespread belief that disease must have been a factor in the thylacine's extinction. The study found that European settlement, including hunting and habitat loss, was powerful enough to drive the species to extinction without invoking a mystery disease.
A new mobile app, Green Solvents, has been developed to foster the use of environmentally friendly principles of green chemistry in pharmaceutical processes. The app provides a guide for solvents, reducing waste generation by up to 100 times, and is available on Apple and Android devices.
Sang-Moo Kang receives a $3.4 million NIH grant to develop virus-like particle vaccines for flu and RSV, aiming to create safer vaccines for young children, elderly people, and those with compromised immune systems.
Researchers at Princeton University developed a mathematical framework that strips away differences between scientific laws and theories to reveal common ground. The framework, called operational dynamic modeling, allows for a smooth transition between classical and quantum mechanics.
A study found that natural disasters can alter children's altruistic giving, with 9-year-olds showing increased willingness to give and 6-year-olds becoming more selfish. The research suggests that empathy plays a key role in this development, with older children better able to regulate their emotions and act pro-socially.
The article discusses various geological topics, including the flatness of Earth, chemical weathering, and the distribution of radiogenic lead in zircons. The findings show that mountains do not play a significant role in 'carbon drawdown' effect and challenge previous studies.
Researchers used MEG to identify two distinct spectral features in schizophrenia patients, which were significantly different from healthy control subjects. The study also found four features that changed with age, suggesting the disease affects brain activity over time.
Researchers at UNC School of Medicine found striking similarities between heart cells and brain cells in patients with Alzheimer's disease, suggesting a new treatment paradigm for heart failure. Misfolded proteins in heart cells are a key factor in the process of heart failure.
Researchers found that protein erbin is critical to excitement in inhibitory brain cells, enabling them to suppress activity. The discovery sheds new light on schizophrenia and seizures, highlighting the importance of balance between excitation and inhibition.
A new study from UCLA has identified a possible link between outdoor food ads and a tendency to pack on pounds. The researchers found that the more outdoor advertisements promoting fast food and soft drinks there are in an area, the higher the likelihood that residents are overweight.
Researchers found that mindfulness meditation increased focused engagement and aesthetic responses among music students, even with familiar passages. The technique helped renew attention and drive participants into a state of 'flow,' leading to improved listening experiences.
Researchers analyzed 48 studies on second trimester markers and found that most single markers have only a small effect on modifying the odds for Down's syndrome. However, some markers such as dilated brain ventricles, increased neck thickness, and absent nose bone significantly increase the risk by three- to four-fold.
A new study published in Science Translational Medicine has found a strong link between binge drinking and the development of insulin resistance, which can lead to Type 2 diabetes. The research suggests that alcohol disrupts insulin-receptor signaling, causing inflammation in the brain and increasing the risk of metabolic disorders.
Researchers found a 44% drop in mortality with cefdinir and a 36% drop with amoxicillin when antibiotics were added to therapeutic food treatment. This study has changed how children are treated worldwide, providing a lifesaving impact on hundreds of thousands of children annually.
Researchers confirm the value of the Pipeline embolization device in treating difficult-to-reach brain aneurysms. The study showed that the device is a safe and effective tool for patients, with 68% achieving complete occlusion of their aneurysm.