Transplantation of stem-cell-derived dopamine neurons restores motor function in a rat model of Parkinson's disease, suggesting a viable alternative to existing treatments. The therapy demonstrates efficacy and potency similar to fetal neurons, paving the way for human clinical trials.
A new study published by the American Sociological Association finds that schools with limited social choices and prescribed formats lead to less clique formation and segregation. In contrast, larger schools with more freedom and choice tend to foster cliquishness and self-segregation among teens.
A 47 million-year-old horse fossil in Germany preserves the uterus and an unborn foal, revealing that early horses had a similar reproductive system to modern horses. The discovery provides valuable insights into the evolution of equine reproduction.
Researchers at Scripps Translational Science Institute have identified a new genetic cause of epileptic encephalopathy, a severe and complex form of epilepsy. The KCNB1 gene mutation was found in a 10-year-old girl, offering new treatment options for her condition.
A team of researchers at Florida State University has made a groundbreaking discovery in the field of plant genetics, shedding light on how plants regulate their genetic material. The study found that certain regions of DNA are hypersensitive to enzymes, allowing scientists to identify new biochemical signatures and gain a better under...
A 36,000-year-old fossil skeleton's DNA reveals the early divergence of Eurasians once they left Africa and their deep shared ancestry. The study also shows that Neanderthals and early modern humans interbred around 54,000 years ago.
Researchers developed technology allowing biobots to pick up sounds with small microphones and pinpoint their source, helping emergency personnel find survivors. The system also includes an invisible fence technology to keep biobots within a defined area.
A Tel Aviv University study found that medical clowns significantly decrease anxiety and pain levels in children undergoing skin-prick testing. The intervention also reduced parents' anxiety before and after the test.
A USGS study predicts that bird species will breed, feed, and live in the conterminous US differently by 2075. Climate change and human activities like land use and deforestation are expected to drive these shifts.
The study finds that the Earth's ancient oceans held much lower concentrations of sulfate, a key biological nutrient, than previously recognized. This scarcity would have shaped the nature and evolution of early life on Earth, with implications for understanding the planet's early biosphere.
By 2050, cumulative exposure to ozone during the summer is expected to be high enough to damage vegetation globally. Ozone levels will remain below safe limits if greenhouse gas emissions peak in 2040, but may exceed safe limits if emissions continue to rise until 2100.
A new study challenges a long-held belief that offshore islands protect the mainland from tsunamis. Instead, islands focus the energy of the tsunami, increasing flooding on the mainland by up to 70 percent. Researchers used machine learning to analyze various island geometries and found that this setup amplifies tsunami power.
Researchers from Berkeley Lab have developed a new method to create immortal human mammary epithelial cells with normal genomes. This breakthrough could facilitate the examination of cell immortalization as it occurs in cancer development and potentially lead to new therapeutic approaches.
A new experimental drug, obeticholic acid, has improved liver health in people with nonalcoholic steatohepatitis (NASH) by reducing inflammation and fat. However, the treatment was associated with increased total cholesterol levels, a potential risk factor for cardiovascular disease.
Researchers found that using grocery byproduct as a supplemental feed source in total mixed rations improves dry matter intake and apparent digestibility, leading to increased animal performance. The study also developed a pricing method for the feed based on its nutrient content and market prices.
Researchers used 3D laser scanning to study the only known complete dodo skeleton, revealing new details on its behavior, size, and evolution. The study provides insights into how the flightless dodo may have evolved its giant size and locomotor mode.
Researchers found evidence of ancient sulfur-dependent life forms in 2.5-billion-year-old rocks from Brazil, suggesting these organisms could have existed in shallow water environments with high sulfate concentrations. This discovery sheds light on the evolution of life on early Earth.
A study from North Carolina State University reveals that human-induced habitat alteration leads to changes in the shape and size of male mosquitofish genitalia, particularly in fragmented waters. The research suggests that these changes may be driven by reduced predation pressure, which can influence reproductive success.
Scientists discover that people with celiac disease also react to non-gluten wheat proteins, which could lead to improved understanding and treatments of the disease. The study identifies five groups of non-gluten proteins causing immune reactions in patients, suggesting a broader range of potential triggers.
Research reveals women have on average 43% more cells than men in the olfactory bulb, suggesting a biological basis for their superior olfactory abilities. This finding may have implications for reproductive behaviors and pair bonding.
Rates of problem gambling remained stable despite an increase in gambling opportunities, with only a decrease in overall participation and average days spent gambling. Men are more than twice as likely as women to be problem gamblers, contrary to popular perceptions.
Researchers at CNIO have developed a mouse model that expresses the most common K-Ras mutation found in Noonan patients, reproducing its most representative features. The study aims to advance knowledge of the syndrome and develop specific treatments for each mutation.
Researchers link decline of Assyrian civilization to population growth and droughts, drawing parallels with Syria and Iraq today. The study found that a severe drought in the 7th century BC weakened the empire's ability to withstand subsequent climate-related challenges.
Researchers found that embryonic cloaca signaling determines genitalia structure, similar to location-based signals in real estate. This finding reveals a deep homology between mammalian and reptilian genitalia despite their non-homologous origins.
Incidence rates of colon and rectal cancers among 20-34 year olds are projected to increase by 90% and 124.2%, respectively, by 2030. Lifestyle factors such as obesity and lack of physical activity contribute to the rising trend, while screening efforts in older patients have led to a decline in incidence rates among those over 50.
A new study from the University of Edinburgh finds that teenagers living in neighborhoods with a large number of tobacco shops are almost 50% more likely to smoke. The research suggests that reducing tobacco retailer density could be an effective strategy to reduce smoking rates among adolescents.
Researchers at DESY's PETRA III have observed the growth of C60 molecules into ultra-smooth layers, revealing fundamental insights into molecular growth processes. The team determined three major energy parameters simultaneously, enabling the potential for selective nanostructure growth.
The book 'In Our Hearts' shares narratives of women parted from children, highlighting the importance of wellbeing and finding strength in individual stories. The project aims to provide support for mothers living apart from their children, promoting hope and understanding.
A new drug-based treatment may offer effective options for teenagers with neurofibromatosis type 2 (NF2), a devastating condition that affects 1 in 25,000 people worldwide. Researchers will investigate the mechanism of NF2 and explore how existing drugs can be repurposed to treat the condition.
A new study suggests that aggressively fighting wildfires may actually increase societal vulnerability, highlighting the importance of learning to coexist and adapt with natural hazards. The research recommends integrating fire management strategies into land-use planning, zoning regulations, and building codes to mitigate human losses.
Researchers at the University of Washington have replicated a direct brain-to-brain connection, allowing them to transmit signals and control hand movements between individuals. The study involved six pairs of participants and achieved accuracy rates ranging from 25 to 83 percent.
Researchers have developed lightweight supercapacitors that can boost the power of an electric car. The technology could be embedded in a car's body panels to store enough energy to turbocharge the battery in just a few minutes, enabling faster acceleration and charging times.
A Rice University-led team is developing a sophisticated tool called PLINY to 'autocomplete' and 'autocorrect' code for programmers. The system will leverage big-data analytics and deep program analyses to populate a database of open-source code, providing programmers with help finishing or debugging code.
A new guideline from the American Gastroenterological Association provides guidance on treatments for irritable bowel syndrome (IBS), highlighting the effectiveness of linaclotide and rifaximin. The guidelines also suggest using tricyclic antidepressants, antispasmodics, and other therapies for IBS patients.
A new study from Beth Israel Deaconess Medical Center found that men with osteoporosis-related fractures are under-screened for bone density testing and treatment. The research highlights the importance of evaluating and treating older men for osteoporosis, as fracture rates among men are expected to increase dramatically by 2050.
Researchers from MIPT and Weizmann Institute of Science discover possibility of negative turbophoresis, where impurity particles move against turbulence direction. The study presents new type of phase transition, depending on particle inertia, which can either localize or delocalize in turbulent flows.
Scientists have successfully accelerated electrons to energies 400-500 times higher than conventional accelerators using a plasma wakefield acceleration technique. The breakthrough achieves high energy gains and efficiency, paving the way for future applications in medicine, national security, and high-energy physics research.
Professor Robert Sinclair argues that simple numerical observations and rational numbers can illuminate complex scientific systems. He proposes a balance between deterministic and stochastic growth, finding relevance in nature's selective pressure for stochasticity.
Researchers boosted bacteria's ability to produce isopentenol, a compound with desirable gasoline properties, by identifying and overexpressing genes that improve tolerance to solvent stress. The findings suggest a promising approach to developing a bacterial strain that can yield industrial quantities of renewable bio-gasoline.
Researchers have used X-ray diffraction to investigate photosystem II, revealing structures yet unknown. The results show that photosystem II proteins are arranged within crystals as extended rows, similar to their natural environment.
A new analysis of NLST results concludes that CT lung screening is cost-effective in aging smokers, but its implementation will depend on various factors. The ratio of costs per quality-adjusted life-year added was $81,000, below the $100,000 threshold.
The incidence of colorectal cancer in people under 50 has increased, while those over 50 have seen a decline. The study found that the CRC incidence rate declined overall between 1975 and 2010, but rose among young adults, with the biggest increase seen in patients 20-34 years old.
The TRMM and GPM satellites provided critical data on Hurricane Vance before it made landfall in western Mexico. The analysis revealed a large area of heavy rainfall near the center of the hurricane, with some intense storms dropping rain at rates of over 50mm per hour.
Research shows a recent increase in atmospheric hydrogen chloride, linked to ozone layer destruction, but experts say the Montreal Protocol is still on track for recovery. The study attributes the anomaly to temporary changes in atmospheric circulation, not rogue emissions.
Researchers at Berkeley Lab and UC Berkeley have developed a method to produce graphene nanopores with integrated optical antennas, enabling direct optical DNA sequence detection. This approach opens new avenues for simultaneous electrical and optical nanopore DNA sequencing and regulating DNA translocation.
Researchers at Johns Hopkins University have captured images of the complex, revealing the connection between some genetic mutations and electrical abnormalities in the heart. The study provides a starting point for designing therapies to treat conditions such as long QT syndrome and Brugada syndrome.
Researchers found that the brain separates emotional responses from explicit memories of fear, leading to uncontrolled emotional reactions in post-traumatic stress disorder. This study may help develop new therapeutic strategies for these disorders.
A new method uses a pulsing laser to convert graphite into nanodiamond at room temperature, offering advantages over traditional methods such as lower cost and scalability. The technique has potential applications in various fields including biosensors, quantum computing, fuel cells, and next-generation computer chips.
Researchers at Indiana University School of Medicine have identified Sestrin 3 as a critical regulator of glucose homeostasis and insulin sensitivity in the liver. Mice with the protein showed improved glucose tolerance, while those without it exhibited impaired glucose metabolism.
A new fossil discovery links dolphin-like ichthyosaurs to their terrestrial ancestors, revealing a previously unknown stage in their evolution. The 248-million-year-old fossil has flexible flippers and a shorter snout than its marine counterparts, suggesting it could have moved on land with ease.
A study published in PLOS ONE found that a small Polynesian population in New Zealand initiated rapid forest transition around 750 years ago, with drier forests shifting to shrub land over decades. The high rate of deforestation was likely due to native and previously burned vegetation vulnerability to fire.
Scientists have measured high-quality factors of up to 5 million in carbon nanotube mechanical resonators, outperforming previous records. This breakthrough enables the development of ultra-sensitive sensors and quantum systems, such as magnetic resonance imaging at the atomic level.
A study published in Neurology found that people taking certain COX-2 inhibitors were 19% more likely to die after a stroke. New users of older COX-2 drugs, such as etodolac, were 42% more likely to die from stroke.
Kelly Redmond, a renowned climatologist from the Desert Research Institute, will receive the AGU Tyndall History of Global Environmental Change Lecturer award. He has dedicated his career to understanding the Earth's climate and communicating that knowledge to a general audience.
A new international research review argues that government-sponsored firefighting and land-use policies encourage development on hazardous landscapes, amplifying human losses. The authors recommend adopting location-specific approaches to improve development and safety in fire-prone areas through effective land-use planning, regulation...
A new study by Andriy Bodnaruk and Andrei Simonov found that financial experts, including mutual-fund managers, do not outperform ordinary investors in making investment decisions. The researchers suggest that focusing on passive strategies can help minimize trading costs.
Researchers discovered that bisphosphonates can inhibit cancer spread in some women with breast cancer by attaching to calcifications in tumors and being devoured by immune cells. This finding could lead to new, more effective ways of using these drugs to treat certain cancers.
As people live longer, soaring levels of chronic illness and diminished wellbeing threaten the quality of life of older people. Strategies are needed to prevent and manage chronic conditions through affordable healthcare and social environment changes.
A new study reveals why women are drawn to magazines promoting impossible body images: they derive 'thinspiration' that helps them cope with negative self-comparisons. In contrast, those who focus on self-improvement instead experience increased body satisfaction.
A NOAA-led research team discovered a new species of deep-sea coral and a catshark nursery area in the underwater canyons off the Sonoma coast. The team used innovative technologies to explore and film marine life in areas reaching 1,000 feet deep.