Researchers have identified 52 microRNAs that are decreased in expression as thyroid cancer becomes more aggressive. Restoring these molecules' levels in tumors may be a novel treatment strategy.
Researchers from Brazil, China, and Italy developed a model to map the phases of coesite formation, a polymorph of silica that occurs under high pressure. The study uses atomic computer simulation to describe the interactions among atoms and the transformations resulting from pressure changes.
Developed in Brazil, the device measures temperatures in a wide band between 80-750 kelvin using spectroscopy and has applications in manufacturing and biological processes. It can be used in electronic equipment identification and detection of viral or bacterial infections.
A Brazilian research team discovered a cellular signaling pathway involved in both the immune response to Zika and neurogenesis, a process of new neuron formation. The study found that peptides from the renin-angiotensin system played a key role in this pathway.
DEV Tecnologia's product, DEV FieldConnect, connects machinery and equipment to the internet, enabling online performance monitoring. The device has been successfully tested in a chemical-solvent-recycling machine and is expected to be well-received by the market, especially in Brazil.
Researchers at UNICAMP developed a new method to increase the resolution of proteomic analysis by mass spectrometry, identifying 10,390 proteins expressed in oligodendrocytes. This improved resolution enables the study of previously undetectable proteins, potentially leading to novel therapeutic approaches for schizophrenia.
A Brazilian startup has developed a smartphone app that uses computer vision and artificial intelligence to identify animals. The 'Crowdpet' app combines photos of lost animals registered by owners with snaps of animals found in the street by volunteers, achieving a 99% success rate in distinguishing cats and dogs.
Researchers Ana María Valencia García and Marília Junqueira Caldas resolved a longstanding controversy about the calculation of defect electronic structures in graphene. They used a hybrid functional method, which yielded results compatible with experimental data, resolving divergences between different simulation methods.
Brazilian researcher develops innovative method of laser welding at high temperatures to enhance properties of AHS steel, improving formability and collision resilience. The technique produces bainitic structure, resulting in tough and reliable weld joints.
The project PoupeMais, developed by MGov Brasil, aims to educate 10,000 account holders in Brazil about healthy financial habits and reduce indebtedness. The startup uses SMS and reverse-charge calls to collect data and evaluate the impact of financial education messages on consumption decisions.
A recent study found that sepsis kills an alarming 55.7% of ICU patients, with Brazilian ICUs facing low bed availability and inadequate care contributing to the high mortality rate. Vaccination and simple hospital infection-control measures can prevent community- and healthcare-acquired sepsis.
Researchers discovered a new species of freshwater fish, Hyphessobrycon myrmex, with distinct color patterns between males and females. The study found 109 species of Characiformes exhibit dichromatism, including six families where it appears in behavior.
Researchers studied a nanometric circuit exhibiting quantum effects due to its small scale, revealing how electrons can transit directly or via a cavity, leading to peaks and troughs in conductance values. The study provides a natural explanation for observed phenomena, shedding light on the behavior of electrons in such circuits.
Pebay's platform provides comparative analysis of cash flow, returns, and investor moves for over 500 Brazilian private equity funds. The platform offers financial performance metrics and decision-support data to help fund managers make informed investment decisions.
Researchers at the University of São Paulo and San Diego State University found that niobium boride does not exhibit superconductivity, contrary to traditional manuals. Instead, pure niobium filaments in the material are responsible for its high-temperature superconducting properties.
Researchers found seven genes with altered expression in melanoma patients, which could serve as biomarkers for diagnosis and therapeutic targets. The synthetic compound DM-1 induces cell death by increasing the expression of TOP-1 and ADK genes.
Researchers have discovered that visible light causes damage to skin cells, which is not blocked by conventional sunscreens. A colored sunscreen developed using nanoparticles coated with melanin provides protection against UVA, UVB and visible light.
A survey of over 6,000 Brazilian teenagers found that parental attention and responsiveness can significantly reduce the risk of drug abuse in adolescence. The study also revealed that well-off students are more likely to engage in binge drinking and polydrug use.
A new study by Brazilian researchers resolves the 'fundamental paradox of stellar dynamics', describing galaxy clusters' violent relaxation as displaying unique behavior with entropy oscillation. Entropy increases at the end of the process, but fluctuates in the initial stage, contrary to conventional understanding.
Research shows that longer stays in the neonatal ICU are linked to behavioral problems and impaired emotional regulation in preterm babies. The study highlights the importance of developmental care programs to reduce stressful experiences and promote protective strategies during early development.
The Meta Planning Engine system detects changes in demand and uses multiple algorithms to find the best solution for traffic management. It provides flexibility and adaptability, allowing the software to choose the optimal algorithm for each situation.
A study suggests that expanding sugarcane cultivation in Brazil for ethanol production could reduce global carbon dioxide emissions by up to 5.6% by 2045, while replacing up to 13.7% of world crude oil consumption. The expansion of sugarcane cultivation is proposed in areas not under environmental protection or reserved for food produc...
Brazilian researcher Juliano Cesar Silva Neves challenges the standard cosmological model by proposing the elimination of the spacetime singularity and the possibility of a prior contraction phase. The current expansion may be preceded by contraction, with potential vestiges still present in the universe.
CVDVale's technology enables the use of ultrasonic drills without anesthesia in 70% of cases, allowing for faster and less painful dental procedures. The company's innovative approach to synthetic diamond production has also expanded its applications to orthopedic surgeries.
A new physical model proposes that most of Earth's water came from objects scattered into the inner Solar System by Jupiter's rapid growth. The model suggests that Jupiter's massive size and gravitational pull disturbed thousands of water-rich planetesimals, delivering them to the region currently occupied by Earth's orbit.
A team of Brazilian astronomers observed a unique binary system consisting of a low-mass white dwarf and a brown dwarf. The white dwarf's existence was cut off due to the loss of matter caused by the companion, resulting in its premature death and transformation into a white dwarf.
Researchers in Brazil and the Netherlands explore using single-cell algae to remove pollutants from sewage waste, producing large amounts of biomass for composting. The decentralized system could enable small communities to treat their own black water, reducing the need for industrial-scale fertilizers.
Researchers from Brazil and France identify a new target for developing antibiotics against highly resistant bacteria, inhibiting the interaction of two key proteins involved in cell wall elongation. The discovery paves the way for the development of antibiotics with a different action mechanism, offering hope in combating drug-resista...
A new Brazilian study found that pregnant women with confirmed Zika diagnosis should be tested multiple times due to the intermittent presence of the virus in their urine. The study detected Zika virus in some women's urine for up to seven months after previous tests indicated a non-existent viral load.
Researchers found five native Brazilian fruits, such as araçá-piranga, to contain bioactive properties like blueberries and strawberries. The study suggests these fruits could combat free radicals and chronic inflammation, potentially preventing diseases like diabetes, cancer, and Alzheimer's.
Mice subjected to a calorie-restricted diet experienced improved skin and hair health, including increased fur production and reduced body fat. Skin vascularization also changed, with more blood vessels and increased blood flow to skin cells.
A recent study found that populations of Plasmodium vivax in the Americas are as genetically diverse as those in Southeast Asia, contradicting previous assumptions. The research suggests that P. vivax may have originated from Africa, Europe, and Asia, and its genetic diversity was retained upon arrival in the Americas.
I_Systems' advanced control system Leaf enables companies to forecast consumption variations and optimize air flow and fuel intake, leading to cost savings. The technology has been successfully implemented by various customers in 25 industries, including Coca-Cola and Suzano Papel e Celulose.
Scientists in Brazil and Denmark found that adding enzymes to cassava flour can improve its baking properties, making it suitable for bread production. The study showed that cassava flour could replace between 20-30% of wheat flour without significantly altering the sensory characteristics or leavening process.
Researchers found that exposure to forest fire pollutants caused severe DNA damage and stopped lung cells from dividing. Retene, a chemical compound in polycyclic aromatic hydrocarbons (PAHs), was the main culprit, leading to inflammation, oxidative stress, and genetic damage.
Researchers found that supplementing cell cultures with nicotinamide riboside protects cells and prevents malignant transformation. The compound may be used in chemoprevention to prevent cancer development.
Researchers found that an experimental drug stimulates alpha-7 nicotinic receptors, reducing inflammation and improving lung function in mice with chronic allergic conditions. The treatment also activated M2 macrophages, associated with tissue repair, and reduced pro-inflammatory molecules.
A Brazilian scientist proposes a new definition of glass as a non-equilibrium, non-crystalline state of matter that appears solid on a short time scale but relaxes towards the liquid state. This definition challenges traditional views of glass as a solid and highlights its unique properties.
Researchers found that early-onset cocaine users exhibited pronounced differences in sustained attention, working memory, and declarative memory compared to late-onset users. The study also revealed higher frequencies of cannabis and alcohol use among early-onset individuals.
EnterUp's AI-driven system uses spatial collaborative filtering to personalize online searches, resulting in a 25% increase in property sales conversions. The technology also extends the range of offerings by suggesting areas with similar characteristics, such as nearby shopping malls.
Researchers warn that Zika virus is rapidly mutating in Brazilian patients, potentially leading to the emergence of new serotypes. This could hinder the production of effective vaccines and diagnostic tests, posing significant public health risks.
Researchers in Brazil are testing a technique combining low-intensity electric current with nanoencapsulated chemotherapy to treat skin cancer. The study found that topical application combined with iontophoresis resulted in a significantly greater reduction in tumor size and made the tumor less aggressive.
Researchers have identified two microRNAs, miR-294 and miR-721, that are upregulated in macrophages infected with Leishmania parasites, potentially inhibiting the immune system's response. By analyzing the expression of these microRNAs, scientists hope to identify molecular targets for developing new treatments against leishmaniasis.
Researchers compare sanitation systems in Brazil and USA, finding presence of contaminants in drinking water, including industrial compounds, pesticides, and endocrine disrupters. The study suggests that complementary treatments are needed to obtain clean water that can be safely consumed.
Researchers develop microneedle technology to increase topical anesthesia penetration, reducing patient discomfort during dental procedures. The method has shown promising results in preliminary tests, with patients tolerating deeper injections.
A genetic study aims to improve the tenderness and productivity of Brazilian beef cattle. Researchers bred over 800 animals to identify genomic areas associated with meat quality characteristics, revealing molecular processes related to muscle deposition and fat thickness.
Researchers investigate alternatives to address ruminal acidosis, a serious disease affecting intensive farming systems. Feed additives, such as ionophores, can control lactic acid production, reducing the risk of acidosis and improving animal productivity.
Researchers found that a diet rich in saturated fats damages the brain's hunger control system within days, while gut bacteria changes occur weeks later. The study suggests that this sequence of events may contribute to weight gain and obesity.
A team of scientists from five countries analyzed sediment cores to reconstruct the past 1 million years of the Atlantic Rainforest biome in southern Brazil. The research aimed to understand how vegetation responded to climate change, using sediment samples that contained information about plant cover, rainfall, and subsoil communities.
Researchers found that chronic migraine patients are three times as likely to suffer from severe temporomandibular disorder (TMD), which causes difficulty chewing and joint tension. The study suggests that TMD may increase the frequency and severity of migraine attacks, but it does not directly cause the condition.