Research suggests that high-latitude vegetation growth can impede the spread of midlatitude deserts by altering regional energy balances. The study found significant retreat of southern midlatitude desert boundaries and expansion of polar ice belts and low-latitude vegetation zones.
A new smartphone camera-based test can identify urinary tract infections in just 25 minutes, potentially making accurate testing more widely available in developing nations. The test uses a smartphone camera and reagents to detect the presence of E. coli bacteria, which is present in 80% of bacterial UTIs.
A new project aims to connect networks of groups developing sustainable and resilient cities worldwide. The NATURA network will link early-career scholars and practitioners to share knowledge on climate change resilience.
A study of 1.3 million people found shared genetic factors between body mass index and major psychiatric disorders like schizophrenia, bipolar disorder, and major depression. Obesity is a risk factor for cardiovascular disease, which contributes to a shorter life expectancy among those with psychiatric disorders.
Researchers have successfully produced human immune cells in a lab dish, shedding light on the formation of these crucial cells. The breakthrough could pave the way for new cancer treatments and autoimmune disease interventions.
Scientists have unveiled the first lab-dish models of human spine development, providing evidence of the segmentation clock in humans. The models allow for the study of early spine development and could lead to new treatments for conditions such as congenital scoliosis.
Researchers have discovered a molecular switch that regulates inflammation in the stomach, triggered by H. Pylori bacteria. The 'switch' uses a previously unknown mechanism to control the infection, allowing it to evade the immune system and cause stomach diseases such as ulcers and cancer.
A new study reveals that a sea-ice-free Arctic will accelerate the melting of permafrost, leading to significant releases of carbon dioxide. The research, based on ancient cave stalagmites, suggests that past periods without summer sea ice were associated with warmer air and increased snowfall in Siberia, destabilizing the permafrost.
A study examining childhood weight and obesity in adolescence found that excess weight at age 3 was associated with a higher risk of being overweight or obese at age 15. Pre-pregnancy overweight/obesity in mothers was also a significant predictor of this outcome.
A RAND Corporation study estimates that 3,300 people in the Los Angeles County jail mental health population are suitable candidates for diversion into community-based clinical services. The study found that 61% of inmates were appropriate candidates for diversion, with men making up 85% of the jail's mental health population.
Researchers successfully implanted an artificial neural connection, enabling a paralyzed animal's new cortical site to regain voluntary control of its hand. The study also shows that this technology can impart motor control functions to previously unassociated areas of the cerebral cortex.
A study found that Medicaid expansion under the Affordable Care Act (ACA) decreased coverage disruptions among low-income adults. The researchers estimated that half a million fewer adults experienced churning annually, leading to improved access to care and reduced emergency department visits.
A major international study has identified over 350 DNA 'errors' that increase breast cancer risk, providing the most detailed picture yet of how differences in our DNA put some women at greater risk. The researchers found that 191 genes are likely target genes for these variants.
Researchers have developed a low-intensity ultrasound approach that exploits the unique physical and structural properties of tumor cells to target them. By tuning the frequency to match the target cells, they were able to break apart several types of cancer cells without harming healthy blood cells.
A study of 15 South Tyrolean waterways found that extensive pastures increase biodiversity in streams and rivers. Aquatic macroinvertebrates perform more diversified tasks in pastures, with greater species diversity than in woodland and rocky areas.
Scientists successfully manipulate helium atom's electron cloud using coherent control technique and synchrotron radiation. This breakthrough enables the study of ultrafast phenomena and opens new avenues for functional materials and electronic devices development.
The Ferdinand-Braun-Institut presents its developments in diode lasers and UV LEDs, including high-power stacks for industrial laser technology and a compact dual-wavelength system for SERDS spectroscopy. The institute also exhibits a terahertz camera sensor with high sensitivity and fast response time.
Researchers developed a novel nanoparticle vaccine that combines M2e and NA proteins, providing strong cross-protection against six different influenza virus strains. The vaccine offers potential as a universal flu vaccine or component of such vaccines.
A study by Ohio State University suggests that college students' Facebook friends rarely provide support to encourage help for depression. The study found that most friends responded with supportive gestures, but participants were unlikely to ask for help.
A recent Danish study found that vaccine misinformation resulted in a 50.4% drop in HPV vaccination rates, leaving around 26,000 girls unvaccinated and potentially exposing them to 180 avoidable cervical cancer cases and 45 deaths.
The NASA Terra satellite captured before-and-after images of Kangaroo Island, showing the extensive burn scars and areas still affected by fires. The island's protected nature reserves, home to native wildlife such as sea lions and koalas, have been severely impacted by the bushfires.
A study by the University of Leeds found a 13% decrease in total sugar content in UK yogurts over two years. However, experts warn that yogurt is still not a straightforward choice for consumers looking for healthy foods due to hidden sugars and added sweeteners.
Researchers identified five practices: prepare with intention, listen intently and completely, agree on priorities, connect with the patient's story, and explore emotional cues. These practices aim to improve patient experiences and clinician satisfaction in medicine. The team is now evaluating their effectiveness in clinical settings.
A pediatrician at Children's National Hospital wrote a 27-line poem inspired by her young patients' comments about vaccines. The poem, part of the 'Poetry and Medicine' series, aims to capture the optimism and resilience of children despite challenges. Dr. Sims hopes the poem will help build self-efficacy and resiliency in her patients.
A recent OSU study assesses virtual reality movements' effects on muscle strain and discomfort, focusing on neck and shoulder movements. The study recommends placing objects closer to the body and at eye level to minimize user discomfort.
Researchers have developed new drug compounds that inhibit the activity of FOXM1, a transcription factor that regulates cell proliferation and development. The compounds suppress tumor growth in human cells and mouse models of several types of breast cancer.
A new study has confirmed the history of tomatoes from South America, from blueberry-sized wild tomatoes to large-fruited common tomatoes. Scientists have reconstructed a putative domestication history of tomato groups, focusing on the intermediate stage represented by SLC, which originated in Ecuador around 78 KYA.
Researchers found that a ketone monoester drink can help participants with Type 2 diabetes and pre-diabetes better control their blood sugar levels without insulin changes. The study's lead author notes that while ketone supplements are not a magic bullet, they may be another strategy for managing the disease.
Researchers have developed predictive tools to tackle childhood diarrheal disease outbreaks in Botswana by analyzing atmospheric conditions and environmental variables. The study found a critical link between ENSO, El Niño-Southern Oscillation, and diarrhea rates, enabling the prediction of outbreak reoccurrence.
Researchers at the Mayo Clinic have developed a single-dose gene therapy to treat cocaine addiction. The therapy uses a recombinant adeno-associated viral vector to deliver a gene that metabolizes cocaine into harmless byproducts.
A study by University of Chicago Medicine found that hospitals caring for patients in disadvantaged areas may garner lower quality scores due to social risk factors. Hospitals' ability to improve certain quality outcomes is hindered by these factors, such as income and education levels in the community.
Researchers have created an ultra-thin ion-conducting membrane with high selectivity and conductivity, which can boost the power of flow batteries. The membrane overcomes the trade-off between ion selectivity and conductivity, resulting in improved flow battery performance.
A new study questions the current practice of measuring intracranial pressure via external ventricular drains, suggesting that three-fourths of closures may not leave enough time for accurate readings. The researchers call for standard guidelines and proper training to ensure precise ICP monitoring.
Children with public and private insurance are both likely to receive unnecessary medical services, highlighting the need for global efforts to reduce waste. Researchers estimate that up to 4% of publicly insured and 3% of privately insured children receive low-value care at least twice.
A new study by Boston University School of Public Health finds that Medicaid expansion in Colorado improved access to postpartum care, particularly for mothers with pregnancy/childbirth complications. This narrowing of the 'postpartum coverage cliff' has significant implications for reducing maternal mortality.
Dresden scientists discovered two types of newly formed neurons in zebrafish brains, which have the same cell types as humans. These findings could lead to new therapies for stroke, craniocerebral trauma, and neurodegenerative diseases such as Alzheimer's and Parkinson's.
A recent study published in E-Clinical Medicine found that about 75% of infants with HIV attained viral suppression on ART, but only 52% sustained it. Early treatment within the first two weeks of life led to similar outcomes as starting within the first two days of life.
Researchers found that injecting influenza vaccines into tumors increases the immune system's response, changing cold tumors to hot ones. This triggers an immune-stimulating effect, reducing tumor growth and improving survival rates. The study suggests that flu shots could be repurposed as cancer treatments.
A risk management program for opioids may not be effective due to design and execution flaws, according to a Johns Hopkins Bloomberg School of Public Health study. The program's educational materials were consistent with FDA guidelines, but assessments of its impact were often inadequate.
A new study using VA Million Veteran Program data identified five locations on the human genome related to anxiety risk in Americans of European descent and one in African Americans. The findings could lead to new understanding and treatment of anxiety disorders, which affect 1 in 10 Americans.
A team of CHOP researchers has discovered a genetic signature that can help diagnose adult-onset 'type 1.5' diabetes, which shares characteristics with pediatric-onset type 1 diabetes. The finding could lead to more effective diagnostic methods and improve treatment outcomes for adults.
A study comparing 900 vertebrate species found bats' gut microbiomes resemble birds', not other mammals, suggesting flight's evolution may directly affect gut microbiomes. This paradigm shift challenges previous assumptions about animals and their microbes.
NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star's habitable zone, TOI 700 d. The planet orbits a small, cool M dwarf star located just over 100 light-years away and is thought to be rocky with surface temperatures suitable for liquid water.
Researchers pooled data from four large studies involving 250,000 women to investigate the association between powder use and ovarian cancer risk. The study found a statistically significant increase in ovarian cancer risk among women who used powder in their genital area.
A research team led by Ana Caicedo at the University of Massachusetts Amherst has identified missing links in the tomato's evolution. The study reveals that the modern cultivated tomato is most closely related to a weed-like tomato group found in Mexico, not semi-domesticated intermediate types found in South America.
A new study in the American Journal of Preventive Medicine reveals that young adults who use both e-cigarettes and combustible cigarettes have a nearly three times higher risk of stroke compared to non-smokers. The study also found that switching from combustible to e-cigarettes does not reduce stroke risk, highlighting the need for fu...
Researchers used tree-ring dating to determine when trees were cut down for construction and what the forests were like before European immigration. They found evidence of forest regrowth after Native American population decreases, shedding light on a previously poorly understood period in history.
Geographers at University of Cincinnati found a tipping point in deforestation where forests disappear quickly after being cut in half. The study used satellite images to analyze landscape changes across the globe and discovered that nature abhors mixed landscapes, favoring homogeneous blocks over time.
A multidisciplinary inpatient team improved viral suppression rates by 30% and increased engagement in care after discharge by 30% for hospitalized HIV patients. The intervention addressed social and medical barriers, reducing future infection rates.
The study found a significant increase in cesarean delivery rates in China between 2008 and 2018, with a total rise of 15%. This trend is attributed to various factors including improved maternal mortality care and increased accessibility to healthcare services.
Researchers at Osaka University have developed a new method for generating nuclear fusion power using ultra-intense laser light, which improves upon current 'fast ignition' methods. This approach shows promise for achieving consistent nuclear fusion and potentially cheaper and emission-free energy production.
A randomized clinical trial examined the effects of daily folic acid and zinc supplementation on semen quality and live births among 2,300 couples. The study found that folic acid and zinc supplementation improved semen quality and increased the chances of conception.
Researchers at University College London have identified a subset of immune cells that can kill cancerous cells, opening the door to new and more effective cancer treatments. The discovery builds on previous research and provides evidence for utilizing Blimp-1 to enhance anti-tumor activity in CD4+ T cells.
Researchers found genetic signs of Borna disease virus in brain tissue from patients with unknown cause of encephalitis, indicating a potential link to severe and deadly cases. The study suggests clinicians should test for BoDV-1 more often in patients with rapidly evolving central or peripheral nervous system disorders.
Scientists at Linköping University and SweGaN have developed a new method to fit together layers of semiconductors, resulting in high-breakdown thin GaN transistors. The transistors can withstand high voltages due to the gradual absorption of strain between layers.
A new University of Toronto study reveals that seven in ten Canadians with a history of generalized anxiety disorder are free from the condition, with 40% achieving excellent mental health. Social support and spiritual coping also play significant roles in recovery.
A study on wild chimpanzees found that offspring who lost their mother after weaning had less muscle mass, while mothers of high social status produced offspring with higher muscle mass. Even without direct provisioning, mothers' presence and influence food consumption in their offspring's lives.
Astronomers have discovered a flock of young stars on the outskirts of the Milky Way, suggesting that material from nearby dwarf galaxies, the Magellanic Clouds, is forming new stars. The discovery implies that a stream of gas extending from the galaxies is closer to crashing into the Milky Way than previously thought.
A new study has recalculated the magnitude of the Great Lisbon Earthquake from 8.5 to 9.0 to 7.7 using macroseismic data from Portugal, Spain, and Morocco. The analysis suggests that the earthquake's epicenter was offshore the southwestern Iberian Peninsula and may have involved faulting onshore.
A recent meta-analysis published in Cephalalgia highlights the predictors of chronic migraine, including depression, which increases the risk by 58%, and high-frequency attacks, which raises a permanent debate surrounding the diagnostic criteria. The study also found medication overuse to increase the odds of developing chronic migrain...