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Cardiovascular Responses to Muscle Stretching: A Systematic Review and Meta-analysis

2021

AbstractThe aim of this study will be to review the current body of literature to understand the effects of stretching on the responses of the cardiovascular system. A literature search was performed using the following databases: Scopus, NLM Pubmed and ScienceDirect. Studies regarding the effects of stretching on responses of the cardiovascular system were investigated. Outcomes regarded heart rate(HR), blood pressure, pulse wave velocity (PWV of which baPWV for brachial-ankle and cfPWV for carotid-femoral waveforms), heart rate variability and endothelial vascular function. Subsequently, the effects of each outcome were quantitatively synthetized using meta-analytic synthesis with random-…

Early bone healing around implant surfaces treated with variations in the resorbable blasting media method. A study in rabbits.

2010

Objective: this study aimed to histomorphologically and histomorphometrically evaluate the in vivo response to three variations in the resorbable blasting media (RBM) surface processing in a rabbit femur model. Study Design: screw root form implants with 3.75 mm in diameter by 8 mm in length presenting four surfaces (n=8 each): alumina-blasted/acid-etched (AB/AE), bioresorbable ceramic blasted (TCP), TCP + acid etching, and AB/AE + TCP were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The implants were placed at the distal femur of 8 New Zeland rabbits, remaining for 2 weeks in vivo. After sacrifice, the implants were nondecalcified processed to 30 …

In vitro comparison of the retention capacity of new aesthetic brackets.

1999

Tensile bond strength and bond failure location were evaluated in vitro for two types of aesthetic brackets (non-silanated ceramic, polycarbonate) and one stainless steel bracket, using bovine teeth as the substrate and diacrylate resin as the adhesive. The results show that metallic bracket had the highest bond strength (13.21 N) followed by the new plastic bracket (12.01 N), which does not require the use of a primer. The non-silanated ceramic bracket produced the lowest bond strength (8.88 N). Bond failures occurred mainly between bracket and cement, although a small percentage occurred between the enamel-cement interface with the metal and plastic brackets and within the cement for the …

Alegacion juridica por los acreedores del Lugar de Alfarrasì, contra Don Luis Ruiz, dueño de dicho Lugar sobre que este se deve vender en virtud de…

1745

Hi ha a la fi 2 f. ms. sobre el mateix assumpte Port. amb orla tip. Grav. xil de Sant Josep a port. Caplletra ornada Text a 1 col. - Postil·les. - Reclams Sign.: [A]-H2

Alegacion juridica por los acreedores del Lugar de Alfarrasì, contra Don Luis Ruiz, dueño de dicho Lugar sobre que este se deve vender en virtud de l…

Hi ha a la fi 2 f. ms. sobre el mateix assumpte Perdecedeix al tít.: Jesus, Maria, Joseph Signat a la fi per Bernardo Bas Port. amb orla tip Grav. xil de Sant Josep a port Caplletra ornada Text a 1 col. - Postil·les. - Reclams Sign.: [A]-H2

Hidden Markov random field model and Broyden–Fletcher–Goldfarb–Shanno algorithm for brain image segmentation

2018

International audience; Many routine medical examinations produce images of patients suffering from various pathologies. With the huge number of medical images, the manual analysis and interpretation became a tedious task. Thus, automatic image segmentation became essential for diagnosis assistance. Segmentation consists in dividing the image into homogeneous and significant regions. We focus on hidden Markov random fields referred to as HMRF to model the problem of segmentation. This modelisation leads to a classical function minimisation problem. Broyden-Fletcher-Goldfarb-Shanno algorithm referred to as BFGS is one of the most powerful methods to solve unconstrained optimisation problem. …

Parallel laser micromachining based on diffractive optical elements with dispersion compensated femtosecond pulses

2013

We experimentally demonstrate multi-beam high spatial resolution laser micromachining with femtosecond pulses. The effects of chromatic aberrations as well as pulse stretching on the material processed due to diffraction were significantly mitigated by using a suited dispersion compensated module (DCM). This permits to increase the area of processing in a factor 3 in comparison with a conventional setup. Specifically, 52 blind holes have been drilled simultaneously onto a stainless steel sample with a 30 fs laser pulse in a parallel processing configuration.

<title>Relaxation processes in amorphous As-S and As-Se films</title>

1997

The relaxation of optical, mechanical and chemical properties of as-evaporated amorphous As-S and As-Se films while storing them at room temperature is investigated. The AsxS1-x films with arsenic content 0.3 less than x less than 0.4 are found to undergo maximal changes. It is shown that the phenomenon of dark self-enhancement of holograms (an increase of diffraction efficiency over time without any special treatment) can be used as an efficient method for investigation of relaxation processes in the amorphous chalcogenide films. The changes of diffraction efficiency in amorphous As2S3 films have been measured as a function of aging time and recording light intensity. The relaxation proces…

Molecular dynamics simulation of single DNA stretching reveals a novel structure

2005

Abstract MD simulation, to closely mimic a torsionally unconstrained single-molecule stretching experiment of dsDNA, uncovers three distinct force regimes, characterized by fast and slow elongation regions with a transition regime in between, where the α and γ backbone torsion angles of the elongated double-stranded DNA find rapidly new stationary values. In the slow elongation regime DNA gradually looses its twist, collectively breaks all base-pair H-bonds and develops a remarkable base-stacked structure with the bases strongly tilted, forming a zipper-like stack on the major groove side, stabilized by the narrowing distance between the elongated strands, and by specific water interactions.

Documentário ficcional e responsabilidade social: a recriação da violência de gênero na televisão

2020

espanolO tratamento da violencia de genero tem experimentado uma notavel mudanca nos meios de comunicacao espanhois nas ultimas duas decadas. Propiciada pela conscientizacao e pela publicacao de codigos eticos, essa evolucao e caracterizada por abandonar o discurso que delimitava a violencia contra as mulheres na cronica de acontecimentos para aborda-la em sua dimensao de problema social com causas estruturais. Contudo, os avancos na cobertura informativa contrastam com o surgimento de modelos de docuficcao, que combinam o depoimento das vitimas e seu contexto com reconstrucoes ficcionais. Esta pesquisa tem como objetivo indagar o tratamento que esses modelos oferecem, a partir da analise d…