Researchers use metabolomics to analyze chemical compositions of Espeletia plants and confirm hypothesis on their origin and migration routes along the northern Andes. The study suggests that geographic isolation favored allopatric speciation in this plant genus.
Scheme Lab develops a portable DNA sequencing kit for rapid detection of genetic variations in meat quality, seedlings, and plants. The 'point-of-care' test can be used anywhere - in factories, on farms, or at home.
A study found that if Santos doesn't adapt to climate change, losses could be up to ten times higher due to flood- and global warming-related diseases. The model estimates R$1.5 billion in physical building costs versus R$3 billion in total losses including health and education.
A Brazilian startup has developed an animal detection system that uses sensors and transmitters to warn drivers of potential wildlife crossings. The system, called Passa-Bicho, aims to reduce roadkill and collisions by providing early warnings to drivers, covering hundreds of meters ahead.
Researchers found that stingless bees control worker reproduction through pheromones, allowing workers to care for the queen's offspring instead of their own. This adaptation creates a conflict between the queen and workers over reproductive interests.
Kimera Biotecnologia's biotech eCG has proven as effective as conventional eCG, reducing production costs by 30-50% and eliminating animal blood use. The hormone is produced in the lab, hastening puberty, inducing superovulation, and increasing fecundity.
A study by Valeria Valente identified genetic alterations promoting aggressiveness in astrocytomas, with correlations to patient survival prognosis. The research aimed to customize treatment to patient needs, potentially predicting tumor behavior through gene signatures.
A study associates schizophrenia with defective processing of messenger RNA in cells, suggesting a link between the spliceosome complex and brain dysfunctions. The researchers found altered proteins in two brain regions, including those involved in calcium-mediated signaling and myelination.
The study highlights São Paulo State as a prime example of an entrepreneurial ecosystem, where firms can benefit from each other's presence. Knowledge-intensive firms should connect to optimize resources and expand their competencies. The analysis also explores cross-border developing zones and innovation policies.
A new study published in the New England Journal of Medicine found that transcranial direct-current stimulation (tDCS) was less effective than escitalopram, an antidepressant, in treating depression. The researchers concluded that tDCS cannot be recommended as first-line therapy due to its lack of efficacy and adverse side effects.
Lasertools, a Brazilian company, has extended its use of solid-state neodymium-doped lasers to increase power levels and processing speed, making micromachining more feasible. The company developed laser manufacturing methods for biocompatible metal implants, including coronary stents.
Research reveals that stingless bee queens rearing high rates of diploid males are sacrificed in up to 20 days, threatening the colony's survival. The emergence of these male bees with both paternal and maternal genetic material leads to reduced reproductive chances for the colony.
A study in São Paulo City found that switching from bio to fossil fuels in flex-fuel cars results in a 30% increase in ultrafine particulate matter. The rise in ethanol prices led to a decrease in its consumption, causing an increase in nanoparticles pollution.
Researchers suggest that combining drugs blocking PAF-R protein may increase radiotherapy's killing of tumor cells by one third and reduce tumor repopulation. Analysis with human oral cancer cells and murine cervical cancer cells showed promising results, supporting a new therapeutic strategy.
Researchers discovered the role of cytokine TNF in causing herpetic neuralgia, a common symptom of shingles. The study provides insights into novel therapeutic approaches to combat acute and chronic pain associated with the condition.
A nine-month research project involved a control group and two groups of older people who learned to play video games or developed their own games. The results showed that the game developers performed significantly better than the control and player groups in terms of mental health, quality of life, cognition, and functional capacity.
The Oropouche virus is a serious public health risk for Brazil, spreading to major cities after being confined to villages in the Amazon. The virus causes acute fever and may lead to meningitis and meningoencephalitis.
Researchers identified lipid accumulation mechanism in oocytes, limiting in vitro bovine embryo success. Excessive fat buildup impairs embryo development and viability.
Researchers have created a new national map of seismic hazards for Brazil, highlighting regions prone to tremors. The survey found that the Northeast, Mato Grosso, and Pantanal biome are at higher risk, with low-intensity tremors capable of causing significant damage.
A study by the University of São Paulo found that aerobic exercise facilitates the removal of dysfunctional mitochondria from heart cells, increasing energy supply and reducing toxic molecules. Regular exercise can help prevent heart failure and improve cardiac function.
A new study reveals significant differences in the genes expressed by human and mouse microglia, with unique human genes playing a crucial role in immune response. The findings provide valuable insights for studying neurodegenerative diseases such as Alzheimer's and Parkinson's.
A research project has developed fiber cement panels and biomass particleboard using agroindustrial waste, offering alternatives to toxic raw materials. The use of plant-based materials reduces the environmental impact of construction products.
Researchers at Inprenha Biotecnologia have discovered a molecule that increases bovine pregnancy rates and reduces early embryo loss. The product, which enhances reproductive efficiency in domestic animals like cattle and horses, has been tested by the company and shown to be effective.
A Brazilian company's device uses low-field NMR to analyze food products in a few seconds, measuring sugar content, fat content, moisture, tenderness, flavor, and succulence. The technology has been used to analyze beef and palm oil without dehydrating samples.
Researchers used a portable DNA sequencer to track the movement of the Zika virus, understanding its evolution and predicting future outbreaks. The study analyzed 254 whole genomes of the pathogen, revealing that Zika circulated silently in all regions of the Americas at least a year before the first confirmed cases.
Virtual.Pyxis software enables designers to create stronger and more versatile parts while shortening lead time and development cost. It can process a larger number of variables and constraints at a lower cost than commercially available programs.
The Amazon rainforest emits at least three times more isoprene than previously thought, influencing ozone levels and greenhouse gas balance. Isoprene emissions vary with terrain elevation and increase at higher altitudes, sparking hypotheses for further research.
Fine Instrument Technology developed a low-field NMR device, SpecFIT, that performs chemical and physical analyses of fruit, grains, olive oil, milk, and meat. The device uses signal fade duration to measure sugar content, fat content, moisture, tenderness, flavor, and succulence.
Researchers at the University of São Paulo's Biomedical Science Institute have discovered a new virus in a migratory bird species. The virus, type 15 avian paramyxovirus, was found to be closest to viruses previously identified in South America and does not pose a threat to humans or birds.
A recent study conducted in São Paulo, Brazil found that prior dengue infection does not intensify Zika disease severity. The research involved 65 individuals who contracted Zika virus during the 2016 epidemic, and analyzed their viral loads, finding no significant difference between those with prior dengue exposure and those without.
Researchers developed silver-silica nanoparticles with an ampicillin coating that target antibiotic-resistant bacteria while being inert to human cells. The nanoantibiotic showed efficacy against both resistant and non-resistant strains of E. coli, offering a promising strategy for combating drug-resistant infections.
Bee-Zed asteroid, discovered in 2015, orbits the Sun every 12 years, corresponding with Jupiter's orbital period, and shares its orbit despite moving in the opposite direction. This retrograde co-orbit is rare, occurring only in about 82 of the more than 726,000 known asteroids.
Researchers created a quantum dot transistor that can store and process information directly in memory. The device simulates the functions of neurons by using light to control electrical charging and discharging of quantum dots.
Researchers discovered how chemical ripeners increase sucrose storage in sugarcane by stimulating ethylene production. This process enables plants to accumulate more sugar, leading to higher yields and improved profitability for plantation owners.
Researchers developed a silicon photonic device that can exploit the scattering of light by mechanical vibrations, called Brillouin scattering. The device uses two silicon microdisks with tiny cavities, enabling light and mechanical waves to interact at high frequencies.
A census of medium and large mammals found in 22 forest remnants surrounded by sugarcane plantations in São Paulo State, Brazil revealed that 90% of expected species were recorded. The study found rare animals such as the giant armadillo not present, but generalist species like white-eared opossums adapted to disturbed environments.
A new study uses a hydrodynamic model to predict specific patterns in hadrons' angular distribution, shedding light on the structure and dynamics of quark-gluon plasmas. The results suggest that the plasma is not a gas but a liquid with extremely low viscosity.
Researchers found that guard bees are significantly larger and more robust than foragers in 10 out of 28 stingless bee species analyzed. The evolution of guards with increased size likely relates to the risk of attack by parasitic robber bees, which is a common threat to many stingless bee species.
Researchers at the Center for Cell-Based Therapy found that patients with more autoreactive lymphocytes before treatment have a shorter therapeutic effect. In contrast, those with fewer autoreactive lymphocytes experience a longer-lasting response to stem cell therapy.
Numerical simulations by Everton Santos Medeiros provide a better understanding of the characteristics of tipping points in natural and social systems. The study highlights the persistence of system dynamics after irreversibility, masking the transition itself.
Researchers have discovered that doxycycline can reduce α-synuclein aggregation and improve symptoms in animal models of Parkinson's disease. This could lead to a potential treatment option for the degenerative condition.
Researchers have discovered and characterized 82 massive binary star systems in the Tarantula Nebula, a satellite galaxy of the Milky Way. The study provides new insights into the properties of these systems, which are expected to play a crucial role in shaping the chemical evolution of the universe.
A Brazilian research team developed an optomechanical device that boosts the coupling between light waves and mechanical waves to higher levels than similar devices. This enables the creation of highly customizable sensors for detecting force and motion, as well as potential applications in telecommunications as optical modulators.
Researchers have observed and interpreted a cosmic phenomenon resulting from the acceleration of gas clouds by black holes and reacceleration by shock waves. The study reveals the connection between double acceleration and radio emission in galaxy clusters.
Researchers developed a model to predict which patients with mesial temporal lobe epilepsy will respond to drug treatment. The study analyzed genetic material and clinical data for 237 individuals, achieving accuracy rates of up to 82% in predicting patient response.
The creation of a Bose-Einstein condensate in nickel chloride enables the calculation of macroscopic properties, such as magnetic moments, by treating atoms as waves. This breakthrough uses a single wave function to describe the behavior of a large group of atoms.
Researchers found that phototherapy improved behavioral responses and recovered myelin sheaths in rat models of diabetic neuropathy. The treatment also reduced the migration of astrocytes to the site of injury, which release inflammatory mediators.
A new invasive species, Anolis porcatus from Cuba, has been identified in the São Paulo coast of Brazil near the Port of Santos. The species, a generalist predator, competes with native lizards for resources and could potentially harm local ecosystems.
Researchers identified biological substrates of bacterial enzyme Ohr, which enables bacteria to neutralize oxidizing substances released by the defense system of host organisms. The study's findings suggest that Ohr plays a central role in bacterial anti-oxidant defense and offer potential for novel therapeutic approaches.
A study analyzing 24,000 blood samples from migratory and resident birds in the Americas found 79 malaria parasite lineages. The researchers discovered that prevalence varies between localities and species, with some areas having infection rates as high as 37%.