Dogs trained with aversive methods showed increased cortisol levels and stress-related behaviors compared to those trained with reward-based methods. The study suggests that aversive training techniques may have a negative impact on dog welfare, especially when used at high frequency.
A Finnish study of 1,449 participants found that those with better midlife heart health scores had a lower risk of dementia later in life. Maintaining lifelong cardiovascular health behaviors may reduce dementia risk, according to the findings.
A proof-of-concept study found that trained dogs can detect COVID-19 infected individuals by smelling their axillary sweat samples. The researchers used a total of six detection dog teams to identify positive participants with high accuracy.
A study found that Zika virus can remain in the mouse brain for extended periods, leading to lasting cognitive impairment and increased risk of psychological disorders. The infection caused long-term deficits in motor function and coordination, as well as anxiety and hyperactivity.
A well-preserved ichthyosaur species, Thalassodraco etchesi, was discovered in Dorset. The fossil is from the Upper Jurassic period, around 150 million years ago, and provides insights into Late Jurassic ichthyosaur diversity.
A global comparison of two happiness tests reveals that cultural context is crucial for accurate measurement. The interdependence-focused Japanese test was more reliable in East Asian countries, while the independence-focused US test performed better in Western European nations.
A study of 21,231 UK urgent care register records found that advance care planning significantly influenced the place of death, with patients who had recorded preferences dying at home or in their chosen setting. Patients without a recorded preference were more likely to die in hospital.
Researchers discovered honey bees collecting and applying animal dung around nest entrances to prevent giant hornet attacks, leading to reduced landing times and chewing behavior. This unique defense mechanism is the first documented case of honey bee tool use.
A new study published in PLOS ONE found that maternal asthma medication is associated with an increased risk of premature births and small birth weights. The study analyzed data from over 117,000 births in Wales and found that prescriptions for asthma medicines were linked to lower birth weights and higher rates of preterm birth.
A new study found that individuals with longer durations of obesity are at a higher risk for cardiometabolic disease factors. The duration of obesity exposure between ages 10 and 40 years was associated with worse values for blood pressure, cholesterol, and glycated hemoglobin (blood sugar) measurements.
Researchers used machine learning to analyze brain network data from people with major depressive disorder, identifying distinct patterns of coordinated brain activity. The new brain network signature achieved 70% accuracy in detecting major depression across different imaging protocols.
Researchers analyzed data from over 87,000 patients with inflammatory diseases and found that even low doses of glucocorticoids nearly doubled the risk of cardiovascular disease. The study suggests that long-term steroid treatment should be personalized and monitored for cardiovascular risks.
A study found that vaginal bacteria associated with bacterial vaginosis can metabolize HIV prevention drugs, reducing their effectiveness. This imbalance can increase the risk of HIV transmission in women. The researchers highlight the need for better treatments and studies on women's health to improve HIV prevention efforts.
A study published in PLOS Computational Biology found that certain animal species are susceptible to COVID-19 due to distinct structural features of the ACE2 receptor protein. The researchers used 3D modeling to simulate protein interactions and identified key features that enable viral entry into human cells.
Researchers used videoscope analysis to study the Neanderthal skeleton from Altamura, Italy, gaining detailed information about its dental structure. The findings provide valuable data on ancient human oral health and offer a unique perspective on Neanderthal biology.
New research on glass beads from archaeological sites in Mali and Senegal suggests a more intricate network of trade exchange during the emergence of Sahelian states. The findings shed new light on medieval commerce, revealing previously unknown regional connections.
A study analyzing necropsy reports of stranded killer whales found human activity as a cause of death for orcas across every age group. The study highlights the need to address human interactions, such as vessel strikes and fishing gear entanglement, to protect these vulnerable populations.
Mathematical analysis reveals optimal Thoroughbred horse racing speed by analyzing track data and considering factors such as course length, surface type, and weather conditions. The study provides insights into the physical limitations of horses and the importance of course-specific factors in determining optimal speed.
A new study successfully tracks 'bottle tags' through the Ganges River system and into the Bay of Bengal, revealing how plastic pollution moves through rivers. The tracking method uses reclaimed bottles with custom-designed electronics, allowing for detailed insights into river transport of plastic pollution.
A new Brazilian study found that dreams during the COVID-19 pandemic lockdown are related to mental suffering and fear of contagion. The computational assessment of dream reports used in the study reveals these emotional connections.
A study published in PLOS ONE found that keyhole wasps at Brisbane Airport were responsible for fully blocking replica pitot probes, which measure airspeed. The researchers emphasize the importance of developing risk-mitigating strategies to address this issue and highlight the potential consequences of not doing so.
Analysis of audio recordings from infants' homes reveals that certain types of vocal interactions are associated with larger infant vocabularies. Infants tend to have a greater vocabulary if they produce speech-like babbling sounds and receive adult responses incorporating similar sounds.
A 28-country comparison of 280,605 adults reveals that specific muscle-strengthening exercises are not widely practiced. Only 17% of Europeans perform these exercises twice or more a week, as recommended by the World Health Organization.
A new study analyzing 22,445 UK emergency department patients with suspected COVID-19 infection found significant age, sex, and ethnicity differences in symptoms and outcomes. Adults were more likely to be admitted to the hospital and die than children, while men faced a higher risk of admission and organ support.
A team of researchers analyzed 648 DFT1 tumors collected between 2003 and 2018, revealing that early on in the spread of the tumor, five clades emerged, with two dying out while three continued to spread. The study highlights the importance of geography in influencing the movements of devils and their disease.
A study published in PLOS Pathogens found that hundreds of influenza introductions within a city drove the seasonal flu season. Transmission dynamics were linked to temperature, with elderly individuals primarily infected within their own networks, while school-aged children played a central role in spreading the virus.
A study published in PLOS Medicine found that children born via cesarean section have a higher risk of infection-related hospitalization up to five years of age. Researchers analyzed data from over 7 million children and observed a 10% greater risk of infection among cesarean-born children.
Researchers found a positive association between the percent of Black residents and COVID-19 cases and deaths, as well as explicit and implicit racial attitudes. The study suggests that implicit racial attitudes in communities can help explain racial disparities in COVID-19 rates.
A new study found that people who spent more time on their phones were more likely to reject larger, delayed rewards in favor of smaller, immediate rewards. This suggests a link between smartphone use and impulsive decision-making.
A new study published in PLOS ONE describes the use of functional near-infrared spectroscopy (fNIRS) to objectively detect tinnitus. The technology revealed differences in brain connectivity between people with and without tinnitus, and accurately differentiated patients with mild from moderate/severe cases using machine learning.
Analysis of over 4000 winter drowning events identifies factors associated with higher rates of drowning deaths. Warmer winters may lead to an increase in drowning fatalities in ice-covered areas.
The study uses large datasets to examine representation of sexual minorities in STEM fields. Men in same-sex couples are less likely to complete a STEM degree or work in a STEM occupation compared to heterosexual men. However, women in same-sex couples are more likely to work in a STEM field than women in different-sex couples.
A new animal model of SARS-CoV-2 infection has been developed in rhesus macaques, exhibiting clinical and pathological manifestations similar to those observed in humans. The study revealed long-term viral shedding and inflammation-promoting responses, highlighting the need for treatments targeting T cell responses and cytokine changes.
The study reveals rare behavior of the Bigfin Squid in the Great Australian Bight, providing new insights into its distribution patterns. Multiple observations suggest a deeper understanding of this deep-sea species can be gained through further research.
A survey of over 5,000 people in China found that longer quarantines were associated with poorer well-being. However, experiencing the mental state of flow reduced or eliminated this link. Flow was linked to better well-being, including less loneliness and more positive emotion.
Researchers observed wrinkle-faced bats displaying unique mating behavior, using a mask-like face fold during copulation. This rare lek courtship behavior was previously unknown in bat species, with only 12 instances found across mammals.
Tabloids' focus on misinformation drives broadsheet attention to similar issues, highlighting media market herd behavior. This cross-national study examines the spread of misinformation in political and business journalism across different countries.
A new study published in PLOS ONE found that COVID-19 led to a significant decrease in life expectancy in Spain, with an annual decline of 0.9 years. The pandemic resulted in increased mortality rates across the country, particularly in regions such as Madrid.
A new study by Jung Ki Kim found that young people resumed risky behaviors earlier than the elderly, despite older individuals initially taking more precautions. Women and racial minorities were more likely to limit risk, while left-leaning political views also contributed to this behavior.
A new study found that over half of COVID-19 patients continue to feel fatigued 10 weeks after their initial illness. Researchers tracked 128 participants and discovered no association between COVID-19 severity or hospital admission with persistent fatigue.
The study evaluated the efficacy of improvised dry and wet emergency decontamination protocols for chemical incidents. Combining these methods showed promise in reducing exposure to toxic chemicals.
A recent analysis suggests that California's CalEnviroScreen 3.0 index may identify only 25% of at-risk communities, while other indices reveal an additional 12.6% vulnerable to heat-related health impacts. This highlights the need for a more holistic approach to quantify vulnerability to extreme heat and other climate hazards.
A study of ancient China's staple cereals reveals a complex history of environmental and cultural influences on food systems. Researchers analyzed isotopic data from human skeletal samples to infer patterns of changing cuisines over time and space.
A new study demonstrates the effectiveness of eDNA metabarcoding for detecting deep-sea fish, revealing 11 fish families, 11 genera, and 8 species. This method provides broader coverage of fish diversity and uses significantly less logistical effort than conventional methods.
Research finds significant increase in dengue infections in Thailand due to social distancing, while no change seen in Singapore and Malaysia. The study suggests that reduced human mobility and workplace exposure contribute to the rise in cases.
A 29-year analysis of koala rescue data in New South Wales highlights the impact of increased human activities and bushfires on koala populations. Disease, particularly chlamydia, was found to be a major stressor, with incidents increasing over time, while release rates dropped and euthanasia rates rose.
New discoveries in Northern Spain's Aitzbitarte Caves depict a previously unknown artistic style, consistent with the Gravettian cultural complex found across Europe. The study reveals a more widespread and varied culture than previously thought, spanning over 25,000 years.
A study published in PLOS Biology found that individuals with autism spectrum disorder show reduced flexible behavior due to less optimal learning. The research used a developmental approach and examined flexible behavior on a probabilistic reversal learning task in children, adolescents, and adults with ASD.
The new high-quality cat genome has helped confirm existing gene variants and identified a novel gene underlying dwarfism. The study also revealed genes linked to other diseases, providing valuable insights into feline biomedical research.
A study published in PLOS Biology found that genetic variants of the ROBO1 gene in young children are associated with grey matter volume in the right parietal cortex, predicting mathematical test scores. The research suggests that genetic variability may shape mathematical ability by influencing early brain development.