Informações sobre cultivo de capim-santo no litoral cearense.

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Acute Effects of Velocity-Based Resistance Training on the Physical Functional Performance of Older Adults

International Journal of Exercise Science 15(3): 399-413, 2022. The aim of this study was to analyse the acute effects of velocity-based resistance training on the physical and functional performance of older adults. Twenty participants (70.4 ± 7.4 years) performed the deadlift exercise, in two different resistance training protocols. The moderate-velocity protocol (MV) predicted maximum loads so that the movement velocity during the concentric phase remained in the range of 0.5 to 0.7 m/s and the high-velocity protocol (HV) predicted maximum loads so that the movement velocity remained between 0.8 and 1.0 m/s. The jump height (cm), handgrip strength (kg), and time (s) to complete the functional tests were assessed before (baseline), and immediately (post), 24-h, and 48-h after the MV and HV protocols. Compared to baseline, both training protocols acutely led to a gradual reduction in walking velocity, with significant values 24 hours after training (p = 0.044), on the other hand, both protocols improved performance in the timed up and go test at post (p \u3c 0.001) and in the sit-to-stand test at 48-h (p = 0.024), although there were no significant differences between them for any times analysed (p \u3e 0.05). No other outcomes exhibited significant changes. Results indicate that neither of the protocols (MV and HV) led to significant impairments in physical function of the older adults, and can be recommended with the safety criterion of at least 48-h of rest between sessions

Expression of mineralization markers during pulp response to biodentine and mineral trioxide aggregate.

INTRODUCTION: The purpose of this study was to compare the cell viability of dental pulp cells treated with Biodentine (Septodont, Saint-Maur, France) and mineral trioxide aggregate (MTA) and the in vitro and in vivo expression of mineralization markers induced by the 2 materials. METHODS: Human dental pulp cells isolated from 6 permanent teeth were stimulated with Biodentine and MTA extracts. Cell viability was determined using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay, and quantitative reverse-transcriptase polymerase chain reaction was used to determine the expression of mineralization markers. Specimens of teeth from dogs treated with Biodentine and MTA after pulpotomy were used to determine the presence of osteopontin and alkaline phosphatase by immunohistochemistry and runt-related transcription factor 2 by immunofluorescence. RESULTS: No significant differences in cell viability were found between MTA and Biodentine extracts and controls after 24 and 48 hours (P > .05). After 48 hours, osteopontin (SPP1), alkaline phosphatase (ALP), and runt-related transcription factor 2 (RUNX2) expression was higher in MTA and Biodentine than in controls (P .05). CONCLUSIONS: Biodentine stimulated similar markers as MTA, but staining was more intense and spread over a larger area of the pulp tissue

Sensory analysis and consumers studies of açai beverage after thermal, chlorine and ozone treatments of the fruits.

Açai is a fruit of the Amazon region consumed as beverage, pulp, and other products, being exported to many countries because of its peculiar characteristic flavor and antioxidant power potential. For Açai there is still a need for improving sanitizing processes, making it more effective, reducing the microbiological contamination without affecting either the physicochemical and sensory characteristics of final product. Thermal (blanching at 80 and 90C) and nonthermal treatments (150 mg/L-1 chlorination and 4 mg/L-1 aqueous ozonation) were applied to fruits in order to evaluated their anthocyanins content and also processed beverages for coloring, sensory characteristics, and their purchase intentions. Ozonated fruits exhibited less anthocyanins content and beverage originated from this process showed higher color difference from the traditional beverage. Consumers could not distinguish among beverages processed thermally and sanitized by chlorination. Beverage from blanched fruits in both temperatures obtained good notes and positive purchase intention

Embedded System for Real Color Composition in Experimental Physics

Software can be considered educational when properly contextualized in a relationship of teaching and learning. This paper describes an embedded system and an educational software developed and applied in experimental physics to real and virtual colors composition. The educational system developed allows student interaction by voice commands, which makes the assimilation process of red/green/blue (RGB) color formation concepts more didactic and playful. The application of educational software in experiments also allows to verify, in real time, the influence of programs change on the physical phenomena and stimulates the logical reasoning development and consequently the autonomy of the students, to the measure that can raise hypothesis, make modifications in the programming and take off conclusions from the practical results obtained

Componentes estruturais do resíduo pós-corte em capim-massai adubado com cinco doses de nitrogênio.

Objetivou-se avaliar os componentes da biomassa do resíduo pós-corte em capim-massai submetido a cinco doses de nitrogênio (0; 150; 300; 450 e 600 mg N dm-3 de solo) num delineamento inteiramente casualizado, com cinco repetições (vasos) em casa de vegetação. Avaliaram-se a altura residual, a densidade populacional de perfilhos (DPP), a massa seca de forragem total residual (MSFTr), de forragem verde residual (MSFVr), de forragem morta residual (MSFMr), de lâmina foliar verde residual (MSLVr), de colmo verde residual (MSCVr), relação lâmina foliar/haste (LF/C), a massa seca radicular (MS radicular) e a relação parte aérea/raiz. Observou-se efeito quadrático dos níveis de adubação nitrogenada sobre a altura residual. As variáveis MSFTr, MSFVr e MSCVr responderam positivamente, enquanto a MSLVr revelou comportamento quadrático com os níveis de N. Constatou-se valores estimados de 13,35 e 39,73 g MS/vaso para MSFTr, de 9,71 e 24,69 g MS/vaso para MSFVr e de 3,65 e 15,07 g MS/vaso para MSFMr nas doses de 0 a 600 mg N dm-3 de solo, respectivamente. A MS radicular respondeu positivamente às doses de N. A adubação nitrogenada proporciona resultados positivos sobre as características estruturais do resíduo pós-corte do capim-massai. After cut structural components of massai grass under five nitrogen fertilizer levels. Abstract - After cut residue of Massai grass under five nitrogen fertilized levels were evaluated. A completely randomized design with five nitrogen levels (0; 150; 300; 450 and 600 mg N dm-3 of soil) and five replicates (plots) in greenhouse was used. It was evaluated the residual canopy height (RCH), the tiller population density (TPD), the total residual forage dry mass (TFDM), the residual green forage dry mass (GFDM), the senescent forage dry mass (SFDM), the residual green leaf dry mass (GLDM), the residual green culm dry mass (GCDM), leaf/culm ratio (L/C), root dry mass (RDM) and above ground/root ratio (A/R). There was square effect of nitrogen fertilization on RCH. There were crescent and linear effect of nitrogen fertilization on TFDM, GFDM and GCDM. There was square effect of nitrogen fertilization on GLDM. The values were estimated in 13.35 and 39.73 g DM/plot to TFDM; 9.71 and 24.69 g DM/plot to GFDM and 3.65 and 15.07 g DM/plot to SFDM on 0 and 600 mg N dm-3 of soil, respectively. The RDM presented positively response to the N levels. It was concluded that the nitrogen fertilizing brought benefits for all structural characteristics after cut of Massai grass

Características estruturais pré e pós-pastejo do capim Tifton 85 pastejado por ovinos recebendo doses crescentes de suplementação com concentrado.

O objetivo do presente estudo foi avaliar as características estruturais em pré e pós-pastejo de pastagens de capim Tifton 85 pastejada por ovinos suplementados com doses crescentes de concentrado. Foi utilizada uma área de 0,58 ha, dividida em 24 piquetes, manejada em lotação rotacionada com 20 dias de descanso e quatro dias de ocupação e 24 ovinos, com peso corporal médio inicial de 20,5 kg como animais testadores