A recent study published in Educational Evaluation and Policy Analysis found that No Child Left Behind (NCLB) does not have a significant impact on teacher job satisfaction or commitment to the profession. Instead, NCLB has increased autonomy and support for teachers.
Researchers used transgenic zebrafish and multidimensional time-lapse microscopy to visualize gene expression waves and segment formation. They found that the timing of segmentation is influenced by a Doppler effect caused by shortening embryonic tissue, which modulates the wave profile.
Researchers have observed an ordered water monolayer on various solid surfaces at room temperature, contradicting the classical understanding of water's behavior. This phenomenon exhibits novel properties and affects surface characteristics, such as electrochemical property, wetting behavior, and friction.
Researchers found that a combination of developmental and biomechanical problems prevents evolutionary change in the number of trunk vertebrae in fast running and agile mammals. In contrast, these problems barely affect slow and sturdy mammals.
A new INFORMS study finds that buying competitors' brand names as keywords on search engines can backfire if the advertising brand is inferior to the rival. The authors provide a framework for choosing keywords among brand names, offering advertisers a way to optimize their search ads.
Researchers found that Neuropeptide Y prevents excessive production of cytokines, reduces microglial reactivity, and inhibits N-methyl-D-aspartate current in rat cortical neurons. This study suggests a potential neuroprotective role for Neuropeptide Y in cerebral cortical neurons.
Researchers developed software to identify cancer cells in tissue sections and detect specific biomarkers. The tool reduces inter-observer variability, leading to more accurate diagnoses and suitable treatment options.
Researchers captured a genetic snapshot of maize 10 million years ago and traced how it used copied genes to cope with domestication pressures. These gene copies played a vital role in optimizing photosynthesis in maize leaves.
A new Tel Aviv University study confirms that Parkinson's sufferers exhibit greater creative energy than healthy individuals. Researchers found that Parkinson's patients offered more original answers and thoughtful interpretations during testing.
Researchers analyzed clinical samples from suspected Lassa fever cases in Sierra Leone and found nearly 9% tested positive for Ebola virus. The study demonstrates that Ebola has been circulating in the region since at least 2006.
Researchers used SWI to evaluate signal strength in different brain regions after acute hemorrhagic anemia. The study found lower SWI signals in the frontal cortex, temporal lobe, and thalamus after bloodletting procedures compared to pre-bleed values.
Testicular cancer incidence has been increasing dramatically among young Hispanic American men, with a 58% rise from 1992 to 2010. The rate of testicular germ cell tumor is now expected to outpace that of non-Hispanic white men in the US.
The first issue of Current Opinion in Insect Science is now available for free online on ScienceDirect, featuring articles on insect body size, genetics, and social structure. The journal aims to provide a unique platform for specialists to keep up-to-date with the expanding volume of information published in the field of insect science.
A new hypothesis proposes that breeding for tameness causes changes in diverse traits, including floppier ears, patches of white fur, and more juvenile faces, due to impaired development or migration of neural crest cells. This unified explanation ties together several components of the domestication syndrome.
The foundation has granted over $3.3 million to support the research of 16 early-career investigators pursuing novel ideas in cancer research. The recipients will focus on developing new treatments and understanding the underlying mechanisms of various types of cancers.
A team of scientists monitored 14 developmental stages of Arabidopsis thaliana flowers using micro-computed tomography and mass spectrometry, revealing distinct metabolic profiles for each stage. These findings provide new insights into the interaction between developmental processes and metabolism in plant development.
A new theoretical model predicts how carbon components will perform in lithium-ion batteries, providing a tool for fine-tuning electrodes. The study found a universal linear relationship between lithium binding energy and states-filling work, allowing scientists to quickly evaluate material performance without expensive computations.
Researchers found that schizophrenia patients exhibit altered brain activity in the ventro-lateral prefrontal cortex, leading to impaired ability to control working memory. This deficit is characterized by increased activation of irrelevant information, hindering cognitive function.
Researchers have developed a novel catalyst that efficiently catalyzes the production of clean-burning hydrogen fuel, outperforming cost-prohibitive platinum and other less-expensive alternatives. The technology, based on carbon nanotubes, could make electrolysis reactions commercially viable using renewable energy sources.
Two studies suggest that primary androgen deprivation therapy (ADT) for low-risk prostate cancer is not associated with improved survival rates. Alternative treatments may be more effective for patients, but must consider the potential adverse effects and costs of ADT.
Research found that babies born to immigrant mothers have a significantly lower rate of cerebral palsy, particularly those from the Caribbean and East Asia. The study suggested that wealthier immigrants lose the 'healthy immigrant effect', which may explain why they are not at lower risk of CP than non-immigrant counterparts.
Typhoon Rammasun is approaching the central Philippines, and NASA-NOAA's Suomi NPP Satellite has captured images of the storm. The storm has strengthened, with powerful thunderstorms surrounding a tightly wound eye and bands of thunderstorms wrapping into its center.
A team from the University of Illinois developed a novel, tunable nanoantenna that enables plasmonic field enhancement to actuate mechanical motion. The researchers demonstrated tunability down to 5nm and showed that an electron beam can be used to deform individual p-BNAs or groups with velocities as large as 60 nm/s.
A team of scientists has revealed the molecular mechanisms underlying Roquin's role in preventing autoimmune diseases. The study found that Roquin recognizes a range of RNA binding partners to control T-cell functions, regulating a larger number of genes than previously thought.
Researchers from UCL and the Mayo Clinic argue that labelling people with moderately high blood sugar as pre-diabetic has no health benefits. The term could create significant burdens on healthcare systems without conferring any long-term health benefits.
A new study found that physicians play a crucial role in determining whether older men with low-risk prostate cancer receive treatment or undergo active surveillance. Researchers identified significant variations in treatment and observation rates among urologists, with urologist characteristics accounting for more than double the rate...
Researchers found that soluble corn fibre increased beneficial gut bacteria and calcium absorption in adolescents, potentially leading to improved bone density. Moderate daily intake of SCF may contribute to reduced risk of bone fracture later in life.
Researchers have created a combination drug that controls both tumor growth and metastasis by combining a COX-2 inhibitor and an epoxide hydrolase (sEH) inhibitor. The study found that the dual inhibitor blocked angiogenesis, limiting tumor growth and metastasis in human lung and breast tumors.
A phase-changing material developed by MIT researchers allows robots to transform between a rigid and soft state, enabling them to navigate through tight spaces without damaging organs or vessels. The material can also self-heal and repair damage, making it suitable for applications such as surgical robotics and search-and-rescue opera...
A new study from Rice University found that older adults are nearly twice as likely as their younger counterparts to have memories affected by environmental distractions, leading to decreased memory accuracy and speed. This research provides valuable insights into how the brain is affected by environmental interference, critical inform...
Knocking down α-synuclein in a methamphetamine-induced model of Parkinson's disease reduced depression manifestations, increased striatal dopamine and tyrosine hydroxylase levels, and decreased reactive oxygen species. This suggests that α-synuclein may exacerbate oxidative stress and apoptosis in dopaminergic neurons.
Researchers from the University of Arizona have discovered two juvenile gomphotheres at an archaeological site in northwestern Mexico, dating back 13,400 years. The findings suggest that early humans in North America likely hunted and consumed gomphotheres, expanding our understanding of their diet and behavior.
Researchers found that ADC values accurately reflect changes on the injured side but not on the uninjured side, indicating a delay in pathological changes. This study suggests that ADC measurements may not be reliable for detecting cytotoxic edema on the unaffected brain tissue after traumatic brain injury.
Research found Aspergillus fungus resistant to life-saving drugs in UK rural areas treated with fungicides. The study highlights a worrying link between fungicide use and the emergence of multi-resistant fungal strains posing a significant threat to transplant patients and those with weakened immune systems.
A recent study in Iowa found that nearly all adolescents aged 11-16 had ridden an ATV, with most engaging in risky behaviors like riding daily or weekly and not wearing helmets. The authors conclude that prevention efforts should be prioritized to reduce the risk of pediatric ATV crashes.
A recent study from researchers at the University of Miami found that peacemaking efforts such as apologies, offers of compensation, and owning up to one's responsibility increase forgiveness and reduce anger by making the aggressor seem more valuable as a relationship partner. The study suggests that humans have a psychology for confl...
Researchers have discovered that acute glaucoma is an inflammatory disease caused by high eye pressure, leading to vision loss. The study found that a rapid increase in eye pressure triggers an immune response that damages retinal cells.
Researchers at MD Anderson Cancer Center have discovered that circulating tumor cells (CTCs) rely on the HER3 receptor protein to metastasize to the omentum, a fatty tissue covering abdominal organs. High expression of HER3 is associated with shorter survival in ovarian cancer patients.
Researchers propose 'One Health' model to guide sustainable growth of aquaculture industry, addressing animal health and environmental impacts. The model connects experts from various fields to develop sustainable operations ensuring adequate human nutrition and healthy environments.
Research shows that infants' brains stimulate areas for motor movements of speech at 7-11 months, laying groundwork for word formation. This practice may contribute to the developmental transition to native language sensitivity.
A new study found an association between moderate alcohol consumption and an increased risk of atrial fibrillation. The research followed 79,016 adults in Sweden over 12 years and found that binge drinking was associated with an increased risk for drinkers of wine and liquor.
Researchers found that levels of severity and functional impairment among children with ADHD under 7 were comparable to those with other mental disorders. The study highlights the importance of systematic study of diagnostic criteria in representative samples.
A 107-year-old beetle specimen was rediscovered and described as a new genus and species. The beetle, Rhipidocyrtus muiri, was collected in Borneo in 1907 and had been separated from its body for over a century.
Certain cancers have a characteristic age at which they occur, and their incidence decreases beyond that age. This 'developmental origin of disease hypothesis' suggests many cancers originate early in life, possibly before birth.
Preliminary research found that patients with serious heart and lung conditions have a narrower range of facial expressions, particularly the ability to register surprise. This can help doctors prioritize care and avoid unnecessary tests.
Research shows that pill appearance can affect how patients take their medications, with a study finding that 30% of heart patients who stopped taking their medication had changed pill color or shape beforehand. In contrast, having strong social ties is associated with lower rates of suicide death among men, according to another study.
A multidisciplinary research team led by David Eckmann has successfully alleviated pulmonary inflammation in mice using targeted drug delivery with nanocarriers. The study, published in PLOS One, shows that steroids can access hard-to-reach lung endothelial cells and prevent inflammation.
A genome-wide analysis reveals that friends are genetically similar to each other, with an average of 1% DNA in common. The study suggests that social relationships can drive evolutionary advantages, such as increased immunity against diseases.
Scientists at UEA discover the cannabis compound THC can reduce tumor growth by targeting two specific cell receptors. The findings could lead to the development of a synthetic equivalent with anti-cancer properties.
Research by University of Illinois expert T. Brad Harris finds that boomerang employees have distinct experiences, often leaving due to personal shock rather than job dissatisfaction. Organizations can improve re-employment performance by considering previous performance histories, exit terms, and individual circumstances.
A*STAR's Bioprocessing Technology Institute has partnered with Roche to develop new cancer treatments using novel antibodies that can directly target and destroy cancer cells. The partnership aims to improve cancer detection and treatment, offering a potential breakthrough in cancer therapy.
Patients with advanced co-existinig illnesses struggle to cope with the bewildering array of services and treatments, often finding it 'impersonal' and 'challenging'. The analysis of patient and carer feedback emphasizes the need for a systematic approach to identify patients with multiple advanced illnesses.
Scientists have identified genetic markers associated with eosinophilic esophagitis (EoE), an inflammatory disease characterized by high levels of immune cells in the esophagus. The study found that several genes are involved in EoE development, which can cause difficulty eating and is often associated with food allergies.
Researchers have successfully demonstrated a photonic router – a quantum device based on an atom that enables routing of single photons by single photons. This achievement brings closer the goal of building quantum computers, which rely on superposition and photonic communication to process data in parallel.
Wisconsin scientists have identified two genetic programs that can turn blank-slate stem cells into red and white blood cells. The discovery gives scientists the tools to make blood products, investigate cell development and production of clinically relevant blood products.
A recent study found that acupuncture can positively impact both the frequency and severity of hot flashes in women undergoing natural menopause. The analysis revealed that various forms of acupuncture, including traditional Chinese medicine and sham acupuncture, were effective in reducing hot flash frequency for up to three months.
Researchers induce pseudogap state in material and subject it to laser pulses, inducing a temporary metallic state. The study provides new insight into superconductors and offers the possibility of controlling their characteristics through laser light.
Manuel Serrano proposes a new vision of cellular senescence as a mechanism to eliminate unwanted cells and promote tissue regeneration. Recent research reveals that senescence is not intrinsically negative for the organism, but rather a protective mechanism against cell damage.
Researchers develop new technique to quickly uncover novel products produced by bacteria, reducing screening time from thousands to just a few dozen. The method uses genomics and mass spectrometry to detect reactive compounds, enabling the discovery of new antibiotics and anticancer drugs.
A new oral medication has improved visual function in blind patients with Leber congenital amaurosis, a devastating retinal degeneration. The study found that the drug awakened dormant retinal cells, allowing patients to see and improving their visual fields and acuity.