749 results match your criteria: "Federal University of Santa Maria (UFSM)[Affiliation]"
Environ Toxicol Pharmacol
December 2024
Environmental Engineering Laboratory, Department of Sanitary and Environmental Engineering, Federal University of Santa Maria (UFSM), Avenida Roraima, 1000, Santa Maria, RS, 97015-900, Brazil.
Potato (Solanum tuberosum) cultivation faces the challenge of excessive pesticide use. During processing, the disposal of large volumes of contaminated water into water bodies can result in severe environmental damage, such as fish deaths. This study aimed to evaluate the toxicological effects of chemical compounds present in the effluent from a potato-processing industry using the test organism Cyprinus carpio.
View Article and Find Full Text PDFBraz Dent J
December 2024
Post-graduate Program in Oral Science, Prosthodontic Unit, Faculty of Odontology, Federal University of Santa Maria(UFSM), Santa Maria, Rio Grande do Sul, Brazil.
This study evaluated the effect of grinding and finishing treatments (polishing or glaze) on the color stability, translucency and opalescence of a translucent zirconia (3Y-TZP) after immersion in red wine. Discs (Ø= 12 mm; thickness 0.8 mm) of 3Y-TZP (Zenostar T, Ivoclar AG) were randomly allocated (n= 8) according to the surface treatment factor: Ctrl - as-sintered; Gr - grinding with diamond bur #4219; Gr + Pol - grinding followed by polishing; Gr + Gl - grinding followed by glaze.
View Article and Find Full Text PDFBraz Dent J
December 2024
Post-Graduate Program in Oral Sciences (Prosthodontics Unit), Faculty of Dentistry, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil.
The aim of this study is to assess the presence of MDP at various stages of the bonding procedure, enhance the adhesive and mechanical behavior of cemented zirconia ceramics. Fifty ceramic slices (15 × 15 × 2 mm) and 48 discs (Ø= 10 mm, 1 mm thickness) were prepared, sintered, air-abraded with aluminum oxide, and allocated considering: 1) microshear bond strength (µSBS) between ceramic slices and luting agent cylinders (height= 1 mm, Ø= 1.2 mm); 2) fatigue behavior, ceramic discs paired and bonded onto fiber-epoxy resin discs (Ø= 10 mm, 2.
View Article and Find Full Text PDFFungal Biol
December 2024
Department of Technology and Food Science, Federal University of Santa Maria - UFSM, POSTAL, 97105-900, Santa Maria, RS, Brazil. Electronic address:
Support Care Cancer
November 2024
Physical Therapy Graduate Program, Santa Catarina State University (UDESC), Florianópolis, Brazil.
Food Res Int
November 2024
Nutrition and Food Service Research Center, Universidade Federal de São Paulo (UNIFESP), Rua Silva Jardim 136 CEP 11015-02, Santos, São Paulo, Brazil. Electronic address:
The design and development of nanoparticle- and microparticle-based delivery systems incorporating carotenoids into carrier materials offers multiple advantages, including enhancing the bio-efficacy of these compounds due to improving their bioaccessibility and bioavailability. This study introduced pitanga saponified carotenoid extract (PSCE) and pitanga non-saponified carotenoid extract (PSCE) in a 12 % zein/1 %PEO solution and electrospun for fiber production. Then, the fibers were characterized, and their bioaccessibility and bioavailability were also evaluated.
View Article and Find Full Text PDFMol Neurobiol
November 2024
Graduate Program in Biological Sciences: Toxicological Biochemistry, Center in Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil.
A paradigm shift in the understanding of bidirectional interactions between peripheral and central nervous systems is essential for development of rehabilitation and preventive interventions based on physical exercise. Although a causal relationship has not been completely established, modulation of voltage-dependent ion channels (Ca, Cl, K, Na, lactate-, H) in skeletal and neuronal cells provides opportunities to maintain force production during exercise and reduce the risk of disease. However, there are caveats to consider when interpreting the effects of physical exercise on this bidirectional axis, since exercise protocol details (e.
View Article and Find Full Text PDFJ Org Chem
December 2024
Laboratory for Synthesis of Heterocycles (SINTHET), Chemistry Department, State University of Maringá - UEM, Maringá, Paraná 87020-900, Brazil.
Herein, we introduce an unprecedented cascade reaction for the assembly of pyrrole-fused 1,5-benzodiazepine frameworks. These diverse privileged scaffolds were controllably constructed by intramolecular cyclization of β-enamino diketone, followed by annulation with -phenylenediamine. The protocol features efficient one-pot cascade cyclization/annulation, performed under simple and mild reaction conditions.
View Article and Find Full Text PDFBraz Dent J
October 2024
Department of Restorative Dentistry, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil.
The purpose of this study was to investigate the influence of the color of positioning guides on the CIEL*a*b* color coordinates of ceramic, resin composite and bovine tooth surfaces measured by a clinical spectrophotometer. Positioning guides (n=10) in different colors (translucent, purple, yellow, green and, blue) were made for each surface (ceramic, resin composite and bovine tooth). The CIEL*a*b* color coordinates were measured with the positioning guides and with no positioning guide (control group).
View Article and Find Full Text PDFSensors (Basel)
October 2024
Department of Electrical Engineering, Electronics, Communications and Systems, University of Oviedo (UNIOVI), 33204 Gijón, Spain.
This paper presents a dual-purpose LED driver system that functions as both a lighting source and a Visible Light Communication (VLC) transmitter integrated with a Powerline Communication (PLC) network under the PRIME G3 standard. The system decodes PLC messages from the powerline grid and transmits the information via LED light to an optical receiver under a binary phase shift keying (BPSK) modulation. The load design targets a light flux of 800 lumens, suitable for LED light bulb applications up to 10 watts, ensuring practicality and energy efficiency.
View Article and Find Full Text PDFMembranes (Basel)
September 2024
Department of Food and Chemical Engineering, Universidade Regional Integrada do Alto Uruguai e das Missões (URI), 1621 Sete de Setembro Av., Centro, Erechim 99709-910, Brazil.
Immobilizing different enzymes on membranes can result in biocatalytic active membranes with a self-cleaning capacity toward a complex mixture of foulants. The membrane modification can reduce fouling and enhance filtration performance. Protease, lipase, and amylase were immobilized on poly(vinylidene fluoride) (PVDF) microfiltration membranes using a polydopamine coating in a one-step method.
View Article and Find Full Text PDFOdontology
October 2024
Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), Roraima Avenue #1000, T Street, Building 26F, Room 2383, Santa Maria, Rio Grande do Sul, 97.105-900, Brazil.
This study aimed to identify the chemical composition resulting from the chemical interaction between calcium hypochlorite [Ca(OCl)] and chlorhexidine (CHX) using different H and C nuclear magnetic resonance spectrometry (NMR), correlated two-dimensional spectroscopy (2D COSY), heteronuclear single quantum coherence (HSQC), and Fourier Transform Infrared Spectroscopy (FTIR) experiments. The 5.25% Ca(OCl) was mixed with 2% CHX in a 1:1 ratio, obtaining an orange-brown precipitate that was filtered, washed in ultrapure water, dried and characterized by H and C NMR, 2D COSY, HSQC and FTIR.
View Article and Find Full Text PDFBMC Neurosci
October 2024
Structures Formelles du Langage, UMR 7023, CNRS, Paris, France.
This editorial outlines the outcome of an interdisciplinary session on collective sense-making through dance improvisation, which took place during the 'Neural and Social Bases of Creative Movement' workshop. We argue that joint improvisation practices place the scientist in a privileged position to reveal the nature of cognitive and creative behaviors.
View Article and Find Full Text PDFPatient Educ Couns
January 2025
Graduate Program in Gerontology, Department of Foods and Nutrition, Federal University of Santa Maria (UFSM), Palmeira das Missões, RS, Brazil.
Objective: The study aimed to develop and validate a conversational agent (chatbot) designed to support Food and Nutrition Surveillance (FNS) practices in primary health care settings.
Methods: This mixed-methods research was conducted in three stages. Initially, the study identified barriers and challenges in FNS practices through a literature review and feedback from 655 health professionals and FNS experts across Brazil.
Meat Sci
January 2025
Department of Food Technology and Science, Rural Sciences Center, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil. Electronic address:
This study aimed to verify whether the combined application of jabuticaba and strawberry extracts at five different concentrations could enhance oxidative stability and microbiological quality of pork burgers over 12 days of storage at 4 °C. The anthocyanins in these extracts were quantified by HPLC-DAD and identified by LC-MS/MS. Pelargonidin-3-glucoside was highlighted as the predominant anthocyanin in jabuticaba extract, while cyanidin-3-glucoside was the main constituent in strawberry extract.
View Article and Find Full Text PDFACS Org Inorg Au
October 2024
Núcleo de Química de Heterociclos (NUQUIMHE), Department of Chemistry, Federal University of Santa Maria (UFSM), 97105-900 Santa Maria, Rio Grande do Sul, Brazil.
Pyrimidinone scaffolds are present in a wide array of molecules with synthetic and pharmacological utility. The inherent properties of these compounds may be attributed to intermolecular interactions analogous to the interactions that molecules tend to establish with active sites. Pyrimidinones and their fused derivatives have garnered significant interest due to their structural features, which resemble nitrogenous bases, the foundational building blocks of DNA and RNA.
View Article and Find Full Text PDFDent Med Probl
September 2024
Department of Reconstructive Oral Care, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit Amsterdam, the Netherlands.
Background: A variety of firing protocols are available for the IPS e.max lithium disilicate (LD) and can be used for new, 'advanced' LD (ALD). However, the impact of firing protocols on the optical properties of ALD is still unknown.
View Article and Find Full Text PDFBraz Dent J
September 2024
Post-Graduate Program in Oral Sciences, Center for Development of Advanced Materials, Division of Prosthodontics-Biomaterials, Federal University of Santa Maria(UFSM), Santa Maria, RS, Brazil.
This study aimed to assess the fatigue resistance of molars lacking a coronary remnant, using zero, one, two, or three fiberglass posts. Forty caries/crack-free human molars with coronal portions removed at the pulp chamber floor were randomly allocated into four groups (n=10). Following endodontic treatment, posts (Whitepost DC/DC.
View Article and Find Full Text PDFBraz Dent J
September 2024
Post-Graduate Program in Oral Sciences (Prosthodontics Units), Faculty of Dentistry, Federal University of Santa Maria(UFSM), Santa Maria, RS, Brazil.
This study aimed to evaluate the masking ability of different resin composite (RC) layering techniques over discolored substrates. Layering strategies were tested (n=10), using different RCs: flowable opaque, white dentin, A1 dentin, A1 body, and A1 enamel (Filtek Z350XT; 3M ESPE). Bilayer and trilayer RC combinations resulted in final thicknesses of 1 mm, 1.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
October 2024
Department of Sanitation and Environmental Engineering, Federal University of Santa Maria (UFSM), Av. Roraima 1000, CT Lab, Santa Maria, Rio Grande Do Sul, 97105-900, Brazil.
Clin Pract
September 2024
Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, 1081LA Amsterdam, North Holland, The Netherlands.
: Limited research has been performed to assess the strength of resin-bonded 3D-printed restorations. Based on that, this study investigates the impact of different manufacturing methods on the fracture load of indirect composite restorations (ICRs) following an aging process. : Three manufacturing techniques-conventional (CRC), milled (MRC), and printed (PRC)-were evaluated using 60 specimens, each with a diameter of 10 mm and a thickness of 1.
View Article and Find Full Text PDFJ Esthet Restor Dent
September 2024
Paulo Picanço School of Dentistry (FACPP), Fortaleza, CE, Brazil.
Objective: The aim of this study was to assess the effect of opaque stain application to the intaglio surface of lithium disilicate glass ceramics on the masking ability of discolored substrates and bond strength to a resin-based luting agent (depending on etching time); the stain film-thickness was also assessed.
Materials And Methods: Ceramic specimens were produced with CAD-CAM blocks of lithium disilicate (IPS e.max CAD).
Clin Biomech (Bristol)
December 2024
Department of Orthopedics and Trauma Surgery, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Moorenstr. 5, 40225 Düsseldorf, Germany. Electronic address:
Plants (Basel)
August 2024
Department of Soils, Federal University of Santa Maria (UFSM), 1000 Roraima Avenue, Santa Maria 97105-900, RS, Brazil.
Phosphate fertilizers are applied to the soil surface, especially in vineyards in production in subtropical regions. Nowadays, phosphorus (P) is not incorporated into the soil to avoid mechanical damage to the root system in orchards. However, over the years, successive surface P applications can increase the P content only in the topsoil, maintaining low P levels in the subsurface, which can reduce its use by grapevines.
View Article and Find Full Text PDFTrop Anim Health Prod
August 2024
Department of Animal Science, State University of Santa Catarina (UDESC), Chapecó, SC, Brazil.
The objective of this work was to determine whether the addition of phytogenic compounds based on essential oils (carvacrol, eugenol, cinnamaldehyde) and resinous pepper oil (capsaicin) to the diet of Jersey cows at the beginning of lactation affects anti-inflammatory, antioxidant and immunomodulatory responses, as well as whether there are effects of EO on blood metabolites, ruminal fermentation, digestibility and milk production and composition. Six primiparous cows (370.00 ± 17 kg body weight (BW); 13.
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