A study of nearly four million Roman coins reveals how Rome's economic integration facilitated its territorial expansion. The research, led by Eduardo Amaral Haddad and Inácio Fernandes Araújo, used digital archaeology and data science to reconstruct the monetary circulation of the Roman Republic from 155 BCE to 2 CE.
A clinical trial demonstrated that increasing daily steps is as effective as aerobic exercise in managing asthma, improving quality of life and alleviating respiratory and anxiety symptoms in the medium term. Both approaches provide flexible, accessible, non-pharmacological treatment alternatives.
A study analyzed 1,694 articles and found an annual growth rate of 9.5% in research addressing climate change and animal production. The study also noted an increase in interdisciplinarity, methodological sophistication, and new agendas focused on sustainability, adaptation, resilience, and animal welfare.
A study published in Ecological Monographs reveals that large mammals like tapirs, peccaries, and deer alter soil chemistry and increase fertility in the Atlantic Forest. By trampling and rooting around, these animals reduce soil acidity and increase nutrient availability, leading to increased forest soil fertility.
Researchers discovered that three bacteria, including P. inefficax, can alter the soil microbiome to protect wheat from a fungus that causes root rot. The bacteria increase root biomass, exhibit growth-promoting genes, and produce beneficial plant compounds, strengthening the plant's defenses.
Researchers discovered that Trypanosoma cruzi, the Chagas disease parasite, alters its RNA to adapt to infect mammals, a process that could lead to new treatments. The study found that modifications in transfer RNA facilitate protein production, influencing the parasite's transformation from a non-infective to an infectious phase.
A study conducted at São Paulo State University found that low concentrations of caustic soda increase methane production from banana waste, reducing reagent consumption and process costs. The optimal concentration of 0.2% NaOH promotes the greatest solubilization of carbohydrates and highest rate of gas production.
Researchers developed a hybrid nanoparticle that targets chronic wounds by reducing inflammation, oxidative stress, and promoting fibroblast migration. The treatment promotes full cell regeneration and near-complete closure of simulated lesions in 72 hours.
Researchers found that exposure to PM2.5 worsens periodontal disease by exacerbating inflammation and intensifying alveolar bone loss. The oral mucosa also shows significant changes, including thickening of the tissue lining the tongue and increased keratin deposition.
Researchers evaluated 21 language models, finding they alter their discourse to align with users' bias, creating echo chambers that reinforce preexisting beliefs. The models' behavior varies by topic, with greater shifts in stance on public safety and the economy, but consistency on corruption and democratic institutions.
A Brazilian study analyzed the fate of 1,116 new mammal species described over 35 years and found that most were native to poor or developing countries in the Southern Hemisphere. However, their holotypes are mostly stored in wealthy countries in Europe and North America.
Researchers have identified unusual regime of quantum oscillations in a three-dimensional topological insulator, deviating from conventional theory. The study shows that electrons in zirconium pentatelluride exhibit behavior indicating a topological origin rather than many-body interactions.
Researchers have found evidence of two episodes of significant Atlantic Meridional Overturning Circulation (AMOC) intensification between 17,800 and 14,800 years ago. The study suggests that the AMOC may be more dynamic than previously thought, with potential consequences for global climate patterns.
Researchers identified Adenomera varcena through call and DNA analyses, revealing a hidden diversity in the Amazon's floodplain forests. The discovery highlights cryptic diversity and underscores the need for further research to understand amphibian diversification in the Amazon.
An international study of 58,000 adolescents found that unstructured free time is strongly associated with delinquent behavior and exposure to violence. The study, published in PLOS ONE, analyzed data from 21 countries and found that association with delinquent peers was the strongest predictor of involvement in crime.
Researchers have developed a technique that can map protein movements over time, revealing dynamic behaviors in molecules with similar structures. This insight improves understanding of protein function and paves the way for training AI models to predict protein behavior.
A study found that combining omega-3 and low-dose acetylsalicylic acid (ASA) was comparable to antibiotics in treating severe periodontitis, reducing the need for antibiotics. The treatment combination showed significant benefits, with patients experiencing a similar rate of deep pocket reduction as those receiving antibiotics.
Research found that six gratitude interventions had a greater impact than three control measures, with greatest effect from social connection-based practice. Gratitude interventions led to improvements in psychological states linked to human flourishing, including positive affect, feelings of social reciprocity, and life satisfaction.
A Brazilian engineer's family is diagnosed with hereditary medullary carcinoma after genetic testing reveals an inherited mutation in the RET gene. The condition was initially reactive but shifted to preventive and precision strategies, allowing for earlier interventions and improved outcomes.
Researchers developed an innovative vaccine strategy that uses genetically modified viruses to protect against Chikungunya and other diseases. The new approach generates antibodies without causing disease, paving the way for a robust vaccine platform with broad protective potential.
A Brazilian study found a bidirectional relationship between hypothyroidism and sleep apnea, with participants experiencing more frequent and severe OSA when diagnosed with hypothyroidism. Hormone replacement therapy improved sleep quality by an average of 49 minutes per night.
Researchers at the University of São Paulo have developed an algorithm for optimal pruning using LiDAR technology, which creates a detailed 3D model of tree architecture. By simulating wind forces on these models, they can identify vulnerable branches and recommend precise cuts to improve tree stability.
A study of 5,500 individuals aged 50+ found that both conditions alone increase the risk of death, but together it more than doubles. Abdominal obesity and vitamin D deficiency create a vicious cycle, exacerbating chronic inflammation and impairing bodily functions.
A study covering 52 Atlantic Forest fragments found that natural dispersal of new plants is boosted by surrounding forest and rainfall regime. Seed richness increased as forest cover and precipitation increased, regardless of fragment size.
A Brazilian research team used synchrotron light techniques to analyze a super-deep diamond and found that goethite can withstand extreme pressures and temperatures all the way to the planet's interior. The study suggests that goethite may transport and release water into the lower mantle, reinforcing the hypothesis.
Researchers found changes in tooth enamel mineralization in rats exposed to secondhand smoke, with increased carbon content and reduced phosphorus levels. This suggests a potential impact on tooth strength and hardness.
A recent study reveals that the Pimentel Barbosa Indigenous Territory, home to the Xavante ethnic group, has maintained its environmental configuration amidst agricultural expansion and deforestation. The area, dominated by Cerrado vegetation, has been preserved despite surrounding areas being converted to soybean farming and livestock...
For the first time in Brazil, scientists have detected bacteria that cause columnaris disease, a serious disease in farmed fish. The study found that six out of eleven isolated strains were of the Flavobacterium oreochromis species, infecting native Brazilian species such as tambaqui, pacu, and Amazon spotted catfish.
Researchers at University of São Paulo develop tool using isotopes to track origin of Amazon timber, identify regions where logging is most intense. The methodology involves analyzing ratios of different isotopes in wood cellulose to pinpoint harvesting location.
A 10-year study in São Paulo, Brazil, found that social inequality widens the gap between people's opportunities and experiences. Women from racial minorities with low education have the lowest rates of physical activity during leisure time.
A study found that patients with proximal humerus fractures often avoid movements due to fear of re-injury or discomfort, leading to chronic pain and impaired mobility. Early identification and targeted interventions can help boost confidence and facilitate faster recovery.
A study of 43 fathers, mothers, and newborns found that higher ultra-processed food consumption by fathers was associated with higher birth weights and greater fat accumulation in babies. The quality of the father's diet before conception may influence fetal development.
Researchers detected chlorinated organophosphorus esters in solid waste, linked to toxic effects on the endocrine and reproductive systems. The substances, used as flame retardants, can cause cancer and harm human health if not managed properly.
A study found that the gut microbiota of Helicoverpa armigera caterpillars harbors fungi with the potential to degrade expanded polystyrene. Four fungi were isolated and demonstrated to break down polystyrene using scanning electron microscopy analysis.
A study has shown that a peptide isolated from a Brazilian frog can increase the shelf life of strawberries by up to five days. The molecule preserves the fruit's firmness and chemical composition without affecting its flavor, offering a potential new approach to extend postharvest treatment.
Researchers have discovered a key breeding ground for endangered sand tiger sharks off the coast of São Paulo, Brazil. The Alcatrazes Archipelago Wildlife Refuge provides a vital sanctuary for the critically endangered species, allowing them to complete their reproductive cycle in Brazilian waters.
The HIV/AIDS response program in Brazil has lost momentum as the social movement becomes depoliticized, with activists focusing on basic issues like access to food and housing. The study suggests that technological advances and medicalization of policies have contributed to this trend.
A study reveals that forests and rivers work together to strengthen amphibian microbiomes and protect them from a deadly fungus. The research found that disconnected habitats impair the ability to recruit defensive microbes.
A study by UNIFESP found that chronic xanthan gum consumption causes colon inflammation, alters gut microbiota, and leads to intestinal barrier integrity loss in rats. This supports previous observations of necrotizing enterocolitis in premature infants linked to xanthan gum use.
A new antiseptic formulation has been developed to eliminate 99.9% of Candida parapsilosis cells, a fungus that causes serious infections in hospitals. The combination of alcohol-based chlorhexidine with eugenol and menthol is more effective than traditional 70% ethanol against this type of disinfection.
A study in Carlos Botelho State Park, Brazil found that brown howler monkeys rest more on hot, long days when feeding on leaves. The group traveled an average of 531 meters per day, influenced by interactions with other primate species like southern muriquis and capuchin monkeys.
A study analyzing 60,000 records of flooding, waterlogging, flash floods, landslides, storms, and droughts in Brazil reveals regional impacts. The Northeast had the most affected cities, with landslides and droughts affecting this region the most.
A study tracking 1,500 residents found that infrastructure within 500 meters of home encourages active transportation. The presence of bike lanes was a key factor in keeping people active and promoting cycling. The expansion of bike lanes and parks has encouraged physical activity and public health benefits in São Paulo.
Researchers have discovered a biomarker that can predict and prevent epileptic seizures by detecting a period of neuronal silence before the seizure occurs. The use of this biomarker in neuromodulation therapy has shown promise in reducing seizure duration by up to 93%.
Researchers developed an electronic device that combines processing and memory into a single component, enabling analog operation with multiple intermediate states. The device exhibits synaptic plasticity, reconfigurable logic, and low energy consumption, showcasing its potential for neuromorphic computing advancements.
Heavy rainfall damages spider webs, influencing which species can survive in the environment. Researchers found that sheet-shaped cobwebs are more resistant to rain due to their high silk content.
Researchers found that giant trees in tropical forests have developed complex adaptations to compensate for the challenges of transporting water to their uppermost branches. These adjustments enable them to continue growing and thrive despite increased water stress.
A study reveals Brazil has at least 82 non-native mollusk species, causing ecological damage and economic losses. The most comprehensive inventory in Brazil highlights the urgent need to strengthen biosecurity measures and monitor long-term impacts.
A study by the University of São Paulo found that people with diabetes who have had COVID-19 tend to recover more slowly and experience more long COVID complications, including greater physical and cognitive difficulties. The study also found a higher risk of cardiovascular complications, such as heart attacks and angina.
A Brazilian study found that 86% of children and adolescents with musculoskeletal pain recover, but 32% experience recurring pain. The study identified factors such as quality of life and age as predictors of recovery.