A new study reviews decades of monarch research and finds that milkweed numbers have dropped by about 95% in cropland over the last 20 years, but natural areas show a smaller decline. The researchers suggest other factors such as habitat loss, disease, parasites, and climate change may also be contributing to the decline.
Researchers at Karolinska Institutet have discovered that patients with schizophrenia have lower levels of the neurotransmitter GABA and altered immune cell function. These findings provide new clues to the disease mechanisms of schizophrenia, but follow-up studies are needed to determine if these changes are causes or effects.
Researchers have successfully rejuvenated old gut stem cells by restoring Wnt signaling, suggesting a potential pathway to target for clinicians. This breakthrough offers new insights into the role of Wnt proteins in controlling stem cell growth and pluripotency in the gut later in life.
Researchers tested over 10,000 women and found that transvaginal cervical measurement and fetal fibronectin tests do not accurately predict preterm birth. The studies findings challenge the use of these tests in routine screening for low-risk pregnancies.
Two common tests for predicting preterm birth in first-time pregnancies failed to identify most cases, according to a large NIH study. The tests involved measuring cervical length and testing for fetal fibronectin, but neither method was found to be effective for widespread screening.
Researcher Sandra Roos developed a comprehensive life cycle analysis to map the environmental impact of clothing. She found that conventional cotton growing is particularly heavy on the environment, but post-fibre processing stages like dyeing are equally hazardous. The most effective way for consumers to reduce their environmental loa...
A new study reveals that men are at a higher risk of mortality after osteoporosis-related fractures compared to women. The study found that men who require surgical treatment for an initial fracture are more likely to suffer a subsequent fracture within three years.
Researchers found that noninvasive CT angiography and stress tests can predict future adverse cardiovascular events, including heart attacks, with similar accuracy to invasive procedures. The study suggests that the noninvasive approach is a safer and more cost-effective option for patients, and its findings have important implications...
Researchers are developing a portable, painless 3-D ultrasound device that can detect swelling in the optic nerve sheath, indicating potential brain damage. The device aims to provide instantaneous evidence of head injuries and is expected to be accurate compared to existing MRI and CT technology.
Researchers have mapped how proteins bind along DNA to control gene activity in the bladder lining, revealing a complex interaction between transcription factors. This understanding could lead to new treatments for chronic bladder diseases such as interstitial cystitis and cancer.
A Johns Hopkins study found lower allopregnanolone levels in the second trimester predict increased risk of postpartum depression. The research may lead to diagnostic markers and preventive strategies for the condition affecting up to 20% of American women who give birth.
A University of Vermont study finds that childhood emotional abuse is strongly linked to adult opioid misuse, and suggests integrated treatment approaches for those struggling with addiction. The research also highlights the connection between PTSD and opioid use among individuals who experienced emotional abuse in childhood.
Researchers discovered five previously unknown active hydrothermal vents and a new vent site, featuring unique creatures thriving in extreme conditions. The vents emit hot water and particles, supporting life forms that rely on chemosynthetic bacteria for food.
A new study finds that colder climates lead to lower atmospheric CO2 levels and increased carbon sequestration in the deep ocean. Deep-sea corals reveal that phytoplankton efficiency is higher during colder periods, reducing nutrients in the surface Southern Ocean, leading to more efficient carbon locking away.
A team of engineers and doctors is developing a tool to identify poor posture and correct awkward positions in the operating room. Early results show that the tool is effective at spotting pain-inducing positions, which could lead to improved surgical safety for surgeons.
A new study confirms that sharks arose from a group of bony fishes called acanthodians, using an extraordinarily well-preserved fossil of an ancient sharklike fish. The research identifies the fossil as an important transitional species pointing to sharks as acanthodians' living descendants.
A study by Katharina Prochazka and Gero Vogl applied a physics-based approach to analyze language movement in Southern Carinthia, Austria. The research found that interaction with other speakers of the same language is the primary driver of language shift, with village-level demographics playing a crucial role.
Experts predict that adopting and enforcing tighter air quality standards in China could save 3 million premature deaths each year, primarily due to a decrease in cardiorespiratory diseases. The study found that bringing PM10 levels to the WHO standard of 20 μg/m3 would have significant public health benefits.
A molecule naturally produced by the immune system protects mice and monkeys against Zika virus infection, reducing fetal brain damage and microcephaly. Administering 25-hydroxycholesterol to pregnant mice also protected them from Zika-induced developmental defects.
Researchers found that Chaoborus spp larvae absorb excess methane bubbles to inflate their air sacs, enabling them to reach the surface. This mechanism not only saves energy but also exacerbates greenhouse gas emissions. Improving water quality is crucial in mitigating this effect.
Researchers at Umeå University have created detailed 3D maps of the insulin-producing cells in the pancreas. The data includes information on cell volume and coordinates, providing a valuable resource for studying diabetes.
A team of researchers is developing a wearable robotic system for minimally invasive surgery, which will offer surgeons natural movement and the ability to sense, see, control, and safely navigate through the surgical environment. The system will be equipped with exoskeletons that fit over the surgeon's hands, smart glasses with real-t...
The DrugAge database, the largest such database in the world, has been announced by scientists from the Biogerontology Research Foundation and University of Liverpool. The database contains 418 compounds targeting various age-related pathways, revealing that most have yet to be targeted pharmacologically.
Researchers found that atmospheric CO2 concentrations remained stable around 190 ppm during ice ages, preventing extreme cooling. This suggests a 'thermostat' mechanism maintained habitable temperatures, with slower-growing organisms reducing carbon in soils and oceans.
A study published in JAMA found that in-patient rehabilitation following knee replacement surgery did not improve mobility at 26 weeks post-surgery. Patients who received a monitored home-based program showed similar results as those who underwent inpatient rehab.
A large group of participants practicing Transcendental Meditation significantly reduced rates of drug-related death and infant mortality from 2007-2010. The study found a 30.4% decrease in drug-related fatalities, attributed to the collective effect of consciousness on society.
A new study found that Ebola vaccines provide durable immune responses at one year after vaccination, with 100% of recipients retaining Ebola virus glycoprotein-specific antibodies. The heterologous primary and booster vaccination schedule showed long-lasting immunity, exceeding eight months after primary immunization.
A study of 9,410 women without prior childbirth found that fetal fibronectin levels and transvaginal cervical length had poor predictive performance for spontaneous preterm birth. These tests are often used to identify women at risk of preterm birth, but their accuracy is lower than expected.
Researchers adapted an instrument for high resolution electron energy loss spectroscopy to reduce the time required to measure phonon dispersion. The device uses a hemispherical electron analyzer and high energy-resolution electron source, allowing surface scientists to measure samples that were previously too cumbersome.
A multicenter study of 21 laboratories demonstrated digital PCR's high reproducibility in quantifying cancer mutations across different locations. The method showed greater reproducibility and reduced variability compared to real-time quantitative PCR.
A new platform for culturing human pluripotent stem cells has been developed at Kyoto University, combining micro and nanotechnologies to precisely control the culture environment. The Multiplexed Artificial Cellular Microenvironment (MACME) array mimics extracellular environments with nanofibres in fluid-filled micro-chambers of preci...
A study published in the Annals of Family Medicine found that in-office automated blood pressure monitoring over 30 minutes significantly reduced the number of patients who met criteria for antihypertensive medication regimes. The technique, known as OBP30, yielded lower blood pressure readings than routine office blood pressure readings.
A new study reveals that 'preventable' asthma attacks among schoolchildren in Houston result in significant healthcare costs. The researchers found a strong link between asthma incidents and schools on the city's east side, with African-American children comprising the largest percentage of cases.
Researcher Keith Moored aims to understand the forces, energetics and flow physics of collective locomotion in schools of fish to develop optimized underwater vehicles. He will use a low-speed wind tunnel facility and particle image velocimetry system to characterize flow fields and forces acting on pitching wing models.
Researchers at Kyoto University developed a synthetic ion channel molecule with two distinct openings, allowing for different-shaped paths into a cell. The molecule's rotation and attachment to lipids control its conductance states, offering potential insights into the unique functioning of these channels in living organisms.
Researchers found high-quality surf breaks increase local economic growth significantly, particularly after recent discoveries and during El Niño years. Destruction of surf breaks led to reduced economic growth in nearby areas.
Researchers found that rivers in regions with high erosion rates transport more sediment, which adjusts the channel geometry to moderate flows. This challenges the threshold channel model, which predicts a specific grain size range for gravel-bedded rivers.
Researchers have discovered that the protein Myb plays a vital role in regulating the immune response, preventing overreaction and development of inflammatory diseases. The study found that Myb gives regulatory T cells the authority to control their function depending on the level of threat.
Research from the University at Buffalo and the University of Michigan found that e-cigarette use is not linked to an increase in smoking among teenagers. In fact, overall smoking rates have decreased as e-cigarette use has increased.
Researchers discovered that embryonic tissue, present in both male and female embryos, can contribute to an enlarged prostate if left unchecked after a certain age. This study could lead to new targeted treatments for benign prostatic hyperplasia (BPH), which affects up to 90% of older men.
Researchers found that monkeys suppressed HIV-like virus SHIV after receiving dual-antibody treatment, which enabled their immune systems to control the virus long after the antibodies were gone. The study suggests a potential approach to treating HIV and other infections.
A new study published in JAMA Internal Medicine found that higher healthcare spending by physicians was not associated with better patient outcomes for hospitalized Medicare beneficiaries. The study suggests that policies targeting individual physicians within hospitals may be more effective in reducing wasteful spending.
A study by SFU professor Kelley Lee found that Asian tobacco companies are shifting from a domestic focus to become transnational players, aiming to increase their share of the world market. The companies' business strategies include government-supported consolidation, product innovation and foreign direct investment.
Researchers found that activating CARs reduced biliary cholesterol levels, preventing stone formation. The study suggests CARs may play a role in maintaining cholesterol homeostasis, potentially offering a novel approach to prevent or treat cholesterol gallstone disease.
Research explores how technology transfer is hindered by incomplete information, leading to 'hold-up' situations where entrepreneurs are exploited by investors. The study finds that institutional settings play a crucial role in mitigating this issue.
Research published in Journal of Epidemiology & Community Health found that parenthood is associated with lower risks of death in older age, particularly among men. The study tracked the lifespan of over 1.4 million people in Sweden and found a two-year difference in life expectancy between parents and childless individuals.
Scientists have determined the first 3D structures of intact mammalian genomes from individual cells, showing how chromosomes fold together inside cell nuclei. This knowledge can help study gene interactions, regulation, and development, with potential applications in understanding diseases.
Researchers have identified a parallel pathway controlling organ size in fruit fly models, activating at a newly recognized cellular domain. The Hippo signaling pathway plays a critical role in regulating cell function and tissue growth.
Researchers identified 49 persistent haze events in China's capital region, with a significant increase in events since the 2000s. The scientists found that specific circulation patterns can trap pollutants close to the Earth, leading to prolonged haze events.
New research from Lancaster University reveals significant changes in British language usage over the last two decades. The study has found that words like 'Awesome', 'Massively', and 'Yoga' have become popular, while expressions such as 'Tar-Rah Matey' and 'Boxer' have declined drastically.
Research suggests that metacognitive therapy (MCT) can help individuals with depressive symptoms reduce rumination and gain control over their thoughts. A recent study found that 80% of participants achieved full recovery after a ten-week treatment period.
A study by Potsdam Institute for Climate Impact Research finds that human-caused climate change can trigger a vicious circle of drought and forest loss in the Amazon. The risk is heightened if there are fewer tree species in a forest patch, but diversity can help forests survive dry seasons.
Researchers found that using honorifics incorrectly, but with a playful tone, can help foreigners connect with locals on a personal level. This approach challenges the idea that speaking correctly is always necessary for fitting in.
Researchers at Lund University have produced images that predate beta-amyloid plaque formation, contradicting the 'popcorn plaques' theory. The discovery reveals structural changes in the brain and suggests stabilizing beta-amyloid could slow disease progression.
Researchers at NYU Tandon and Griffeye developed AI-powered tools to quickly analyze photos and videos for child sexual exploitation. The system, integrated into Griffeye Analyze, can accurately detect explicit images 83% of the time and distinguish children's faces from adults.
Only about 300 jaguars remain in Brazil, with fragmented habitats and frequent human contact posing major threats. GPS tracking data reveals jaguars' limited mobility, with males having larger home ranges than females.
A new study by Intermountain Medical Center Heart Institute found that depression is the strongest predictor of death in patients with coronary heart disease, doubling the risk compared to those without depression. The study analyzed health records from nearly 25,000 patients and found half with depression died during the study period.
Researchers from the University of Granada found a close association between magnetic systems and certain brain activity states, including 'spin-glass' states that can lead to frozen neuronal activity. This study provides a novel theoretical framework for understanding biological mechanisms behind destabilization of these states.
A novel method to accurately diagnose exercise-induced laryngeal obstruction (EILO) in swimmers has been developed. The technique uses a flexible laryngoscope secured with waterproof tape, providing stable high-quality diagnostic images of the larynx during exercise.
A Rutgers study finds that an estimated one in six US children have development disorders, but only 1,000 developmental pediatricians exist nationwide. The study also reveals a lack of programs offering accommodations for non-English speaking families, resulting in extended wait times and delayed diagnostic evaluations.