Institution
Universidade Federal do Rio Grande do Sul
Recent research
- Engineering & TechnologyOpen access
Abstract The increasing demand for sustainable and smart cities has reinforced the need to integrate environmental information into municipal Spatial Data Infrastructures (SDIs) to support urban planning and evidence-based decision-making. Although the Brazilian National Spatial...
- Health & MedicineOpen access
Abstract Introduction Proper treatment for infections caused by Staphylococcus aureus , particularly methicillin-resistant strains (MRSA), remains a constant challenge in hospital settings. In this context, the search for new antimicrobials, such as delafloxacin, has become neces...
- Health & MedicineOpen access
Abstract Emerging avian viruses increasingly threaten Antarctic wildlife, raising concerns about ecosystem health and biodiversity. In this study, we conducted a comprehensive investigation of avian influenza virus (influenza A virus, IAV) in both resident and migratory birds inh...
- Society & EconomicsOpen access
Sustainability as a Defensive Strategy: ESG, Risk Exposure, and Returns in US Stocks
ABSTRACT We analyzed the relationship between environmental, social, and governance (ESG) metrics, financial risk, and expected returns in the US stock market, using data from S&P 500 companies over the period from 2007 to 2022 using aggregate ESG scores from Refinitiv (LSEG). We...
- Health & MedicineOpen access
Abstract Background Hepatic stellate cells (HSCs) are major regulators of the hepatocellular carcinoma (HCC) tumor microenvironment, contributing to extracellular matrix remodeling, tumor progression, and therapeutic resistance. Although three-dimensional (3D) coculture spheroid...
- BiologyOpen access
Gross and histopathologic characterization of feline cystitis
Cystitis is a common diagnosis in feline clinical practice; however, studies examining the pathological aspects of this condition are limited. In this paper, we describe the gross, histological and epidemiological features of cystitis in cats, focusing on establishing the macrosc...
- Climate & EnvironmentOpen access
In this study, a silica-based adsorbent was synthesized via a two-step sol–gel route. A branch of ora-pro-nobis (Pereskia aculeata Miller) was used as a porogenic template. The biomass was incorporated into the silica matrix and subsequently removed by calcination. The resulting...
- Climate & Environment
Abstract Total organic carbon (TOC) is widely used to monitor water quality, but its value as a single metric is increasingly limited in water management. Bulk TOC does not distinguish organic fractions with different reactivities and associated risks, limiting its ability to pre...
- Biology
Cognitive Effort as a Compensatory Mechanism for Motor Control in Impulsivity
Impulsivity, although commonly associated with maladaptive behavior, can influence how individuals manage cognitive and motor demands. This study analyzed the effect of impulsivity on motor control and cognitive effort during manual aiming tasks that varied in cognitive load. Fro...
- Materials & EnergyOpen access
ABSTRACT The demand for sustainable alternatives to petroleum‐based packaging has promoted starch‐based materials; however, low mechanical strength and limited functionality restrict their application. Expanded starch foams were developed from agro‐industrial by‐products by combi...
- Health & MedicineOpen access
Abstract Background Antifungal resistance has become an increasing global concern in both clinical and environmental health. Detecting known resistance mutations directly from metagenomic short-read sequencing data remains a major challenge. Most available tools are designed for...
- BiologyOpen access
Abstract Background Metabolic dysfunction‐associated steatohepatitis (MASH) is associated with altered intestinal permeability, allowing microbial products to translocate to the liver via the enterohepatic circulation and contributes to disease progression. The aim of our study w...
- Physics & SpaceOpen access
The description of relativistic phenomena is fundamentally associated with the pioneering formulations of Hendrik Antoon Lorentz and Albert Einstein. Although extensively tested and accepted, these formulations — in our interpretation — still face several conceptual and practical...
- Physics & SpaceOpen access
Time-Dependent Generalized Relativistic Transformation and its Compatibility with General Relativity
With the recent proposal of the Generalized Relativistic Transformation (GRT) [1-6] — which describes any orientation of information, of velocity, and observer position in inertial relativistic events — it becomes natural to incorporate time dependence into the GRT approach. By d...
- Climate & EnvironmentOpen access
Abstract This study evaluated the influence of overwash processes on the dynamics of the coastal system in southern Santa Catarina, Brazil. The analysis was conducted at two temporal scales: monthly and interannual, to investigate the controlling factors in the formation of washo...
- Physics & SpaceOpen access
Time-Dependent Generalized Relativistic Transformation and its Compatibility with General Relativity
With the recent proposal of the Generalized Relativistic Transformation (GRT) [1-6] — which describes any orientation of information, of velocity, and observer position in inertial relativistic events — it becomes natural to incorporate time dependence into the GRT approach. By d...
- Physics & SpaceOpen access
The description of relativistic phenomena is fundamentally associated with the pioneering formulations of Hendrik Antoon Lorentz and Albert Einstein. Although extensively tested and accepted, these formulations — in our interpretation — still face several conceptual and practical...
- Climate & EnvironmentOpen access
Abstract This study investigated whether long-term methylmercury exposure aggravates apical periodontitis in Wistar rats. Thirty-two male rats (90 days old) were randomized into four groups (n = 8): control, methylmercury, apical periodontitis, and methylmercury + apical periodon...
- Society & EconomicsOpen access
Transference is defined as the possibility for the patient to relive, during the psychotherapy process, unconscious impulses and fantasies awakened in the relationship with a person from the patient’s earlier life and it plays an essential role in psychoanalytic treatments. This...
- Materials & EnergyOpen access
The growing demand for bio-based materials has stimulated the development of sustainable alternatives to conventional plastics, among which polyhydroxyalkanoates (PHAs) stand out due to their biodegradability and biocompatibility. In this context, the present study evaluated the...