Search results for "Orientation"
showing 10 items of 1041 documents
Simple Muscle Architecture Analysis (SMA): An ImageJ macro tool to automate measurements in B-mode ultrasound scans
2020
In vivo measurements of muscle architecture (i.e. the spatial arrangement of muscle fascicles) are routinely included in research and clinical settings to monitor muscle structure, function and plasticity. However, in most cases such measurements are performed manually, and more reliable and time-efficient automated methods are either lacking completely, or are inaccessible to those without expertise in image analysis. In this work, we propose an ImageJ script to automate the entire analysis process of muscle architecture in ultrasound images: Simple Muscle Architecture Analysis (SMA). Images are filtered in the spatial and frequency domains with built-in commands and external plugins to hi…
Field tests of astrometric subsystem
2016
The paper presents results of astrometric subsystem’s functionality tests for space object laser ranging and astrometric position determination device, which is under construction in the Institute of Geodesy and Geoinformatics (GGI) of the University of Latvia. Properties of hardware performance for astrometric image acquisition were evaluated and optimal parameters have been selected. Software for image processing and calculation of instrument orientation was tested and adjustments have been made for real-time operation support. Object tracking properties were evaluated, and mount error model parameters were calculated, using test measurements.
Collective Cell Migration in a Fibrous Environment: A Hybrid Multiscale Modelling Approach
2021
International audience; The specific structure of the extracellular matrix (ECM), and in particular the density and orientation of collagen fibres, plays an important role in the evolution of solid cancers. While many experimental studies discussed the role of ECM in individual and collective cell migration, there are still unanswered questions about the impact of nonlocal cell sensing of other cells on the overall shape of tumour aggregation and its migration type. There are also unanswered questions about the migration and spread of tumour that arises at the boundary between different tissues with different collagen fibre orientations. To address these questions, in this study we develop …
Curve Extraction by Geodesics Fusion: Application to Polymer Reptation Analysis
2016
© Springer International Publishing Switzerland 2016. In the molecular field, researchers analyze dynamics of polymers by microscopy: several measurements such as length and curvature are performed in their studies. To achieve correct analysis they need to extract the curve representing as good as possible the observed polymer shape which is a grayscale thick curve with noise and blur. We propose, in this paper, a method to extract such a curve. A polymer chain moves in a snake-like fashion (Reptation): it can self-intersect and form several complex geometries. To efficiently extract the different geometries, we generate the curve by computing a piecewise centerline browsing the shape by ge…
Measuring trunk orientation with a CMOS camera: feasibility and accuracy.
2007
International audience; The purpose of this study was to develop and validate a new tool to objectively quantify trunk orientation at the bedside, especially dedicated to the measurement of the lateropulsion in acute and subacute stroke patients. We developed software to analyze 2D movement with a CMOS camera (Logitech Quickcam Pro 4000) and to calculate the orientation of a segment defined by two color markers. First, the accuracy, reproducibility and noise when measuring segment orientations were evaluated with the CMOS camera placed in different positions, and second trunk orientation was measured in static and in dynamic conditions both with a CMOS camera and with a gold standard 3D vid…
Actitudes de la población general hacia las relaciones sexuales de las Personas con diversidad funcional: variables moduladoras
2017
La población general no muestra la misma tolerancia hacia las relaciones sexuales entre personas del mismo sexo que entre heterosexuales, y lo mismo ocurre con las relaciones entre personas de diferente edad. El objetivo de este trabajo fue explorar si la tolerancia hacia las relaciones sexuales de las personas con diversidad funcional también depende de aspectos tales como la edad de los miembros de la pareja, la orientación sexual que tengan y sobre todo del tipo de discapacidad. Para ello, 450 personas rellenaron una escala de actitudes hacia las relaciones sexuales en personas con discapacidad donde se cruzaban dos variables (edad y orientación sexual). En una escala entre 1 (Totalmente…
Exploring translanguaging in CLIL
2016
After reviewing the concepts of Content and Language Integrated Learning (CLIL) and Translanguaging, this article presents an exploratory study of translanguaging in CLIL contexts. Employing illustrative extracts from a collection of CLIL classroom recordings in Austria, Finland and Spain, we argue that both pedagogic and interpersonal motivations can influence language choices. We suggest that the L1 should be appreciated as a potentially valuable tool in bilingual learning situations and that there is a need for increased awareness-raising around this question. peerReviewed
Drawing conclusions about what co-participants know: Knowledge-probing question–answer sequences in new employee orientation lectures
2019
This study aims to uncover the processes of interaction through which knowledge acquisition in new employee orientation is monitored and controlled. Using video-recordings of orientation lectures as data, the study focuses on question–answer sequences in which the lecturer’s question probes into the state of the employees’ knowledge; in particular, it looks at the third turn of the sequence, in which the lecturer comes to a conclusion concerning the participants’ knowledge. This is shown to be an unavoidably practical accomplishment, which is contingent on both the often ambivalent responses of the participants and the design of the knowledge-probing question. Also, the lecturer orients to…
Satisfacción sexual femenina: influencia de la edad y variedad de prácticas sexuales
2018
La satisfacción sexual es la respuesta afectiva y emocional surgida de la evaluación de las interacciones sexuales personales y de la percepción de la consumación del deseo erótico. La satisfacción marital, definida como la actitud hacia la interacción marital y los aspectos emocionales y estructurales de la pareja, es considerada uno de los más fuertes predictores de la satisfacción sexual. Además, existen otras variables que pueden estar interviniendo en la satisfacción sexual y marital de las mujeres. Por tanto, el objetivo de este trabajo es analizar la influencia de la edad y la variedad de prácticas sexuales y afectivas en la satisfacción sexual y marital de mujeres con pareja estable…
Sexuality in the Internet Era: Expressions of Hispanic Adolescent and Young People
2017
ABSTRACTCybersex is an important manifestation of sexuality among adolescents and young people. However, there is not enough information about this sexual expression, in particular, in cultures such as Latino culture, which has a traditional perception of human sexuality. This study evaluates online sexual activity among Hispanic adolescent and young people. For this purpose, 2,227 participants from Mexico and Spain (between 15 and 25 years old) completed the Internet Sex Screening Test. Our findings reveal that the most common use of cybersex is recreational, although men and women show risk for cybersex abuse. This is associated with pornography consumption, anal sex, sexual orientation, …