Search results for "Focu"
showing 10 items of 1182 documents
Neandertal spatial patterns and occupation dynamics: a regional focus on the central region in Mediterranean Iberia
2020
En el siguiente trabajo se estudian varios conjuntos pertenecientes al Paleolítico medio procedentes del mediterráneo peninsular ibérico con el objetivo de examinar los patrones de ocupación y las estrategias de gestión del territorio. Se presta especial atención al abastecimiento de las materias primas y los comportamientos tecnológicos, los datos procedentes de la fauna y los análisis microespaciales. La variabilidad en los tipos de ocupación de los distintos conjuntos nos muestra una gran diversidad y una multitud de factores, aunque no parece tener una sola explicación cultural, funcional, temporal o ambiental. Más bien son explicaciones que responden a una amplia variabilidad en los co…
Teacher response pursuits in whole class post-task discussions
2020
This paper explores teacher elicitation practices following a perceived absence of a response to an initial inquiry. Specifically, we focus on whole class post-task discussions where a teacher pursues responses in post-first position following students’ non-uptake, and thus makes her orientation toward the expectation of a response publicly available. The data for this study come from 30 h of video-recorded classroom interactions in an English as a medium of instruction university in Turkey. Using Conversation Analysis, this study demonstrates that when confronted with a non-response to her initial elicitation in whole class interaction, in addition to drawing on interactional resources (e.…
Divided attention in music
2000
Two models have been advanced to account for the apparent ease with which attention can be divided in music: a “divided attention” model postulates that listeners effectively manage to follow two or more melodic lines played simultaneously. According to a “figure-ground model,” the harmonic coherence of Western polyphonies allows a listener to focus on one melody while staying aware of the other melody, which acts as a background. This figure-ground processing compensates for the inability to divide attention. The present study was designed to further investigate these two models. Participants were required to detect melodic errors in two familiar nursery tunes played simultaneously an octa…
Inter-agency work in Open Dialogue: the significance of listening and authenticity
2014
The article explores what professionals regard as important skills and attitudes for generating inter-agency network meetings involving intra- and interprofessonal work. More specifically, we will examine what they understand as promoting or impeding dialogue and how this is related to their professional backgrounds. The professionals participated in a project using an open dialogue approach in order to increase the use of inter-agency network meetings with young people suffering from mental health problems. In this explorative case study, empirical data was collected through interviews conducted with two focus groups, the first comprising healthcare professionals and the second professiona…
TEACHERS' SOCIAL AND EMOTIONAL HEALTH INDICATORS IN THE DISTANCE LEARNING SITUATION DURING THE COVID-19 PANDEMIC
2021
There were 3 countries which participated in Erasmus+ project „Supporting teachers to face the challenge of distance teaching” (2020-1-LV01-KA226-SCH-094599) during last year. The aim of the project was to develop a well-functioning digital support system for teachers, promoting socio-emotional health and resilience. The main aim of this research was to outline a research problem on teacher well-being factors in three countries during the Covid-19 pandemic, when teachers worked remotely, and to further explore the problem in a focus group in Latvia. The following is a description of the study that was carried out in Latvia on the problems of teachers' social and emotional health factors dur…
Micro-Machining
2017
This chapter provides comprehensive knowledge regarding the fabrication of micro-products and element of micro-electromechanical systems using various techniques and processes. Both well-established techniques such as micro-machining and new trends in improving micro-processes taking into account EDM, laser, FIB, LIGA and DRIE processes are overviewed. The background of micro-machining processes, including typical machining operations such as turning, milling and drilling and different construction materials, is outlined. Moreover, a special focus was made on new constructions, control systems and effective applications of micro-machining techniques. In addition, the focus was directed towa…
Large Depth-of-Field Integral Microscopy by Use of a Liquid Lens
2018
Integral microscopy is a 3D imaging technique that permits the recording of spatial and angular information of microscopic samples. From this information it is possible to calculate a collection of orthographic views with full parallax and to refocus computationally, at will, through the 3D specimen. An important drawback of integral microscopy, especially when dealing with thick samples, is the limited depth of field (DOF) of the perspective views. This imposes a significant limitation on the depth range of computationally refocused images. To overcome this problem, we propose here a new method that is based on the insertion, at the pupil plane of the microscope objective, of an electrical…
Liquid crystal lens array for 3D microscopy and endoscope application
2016
In this paper, we demonstrate two liquid crystal (LC) lens array devices for 3D microscope and 3D endoscope applications respectively. Compared with the previous 3D biomedical system, the proposed LC lens arrays are not only switchable between 2D and 3D modes, but also are able to adjust focus in both modes. The multi-function liquid crystal lens (MFLC-lens) array with dual layer electrode has diameter 1.42 mm, which is much smaller than the conventional 3D endoscope with double fixed lenses. The hexagonal liquid crystal micro-lens array (HLC-MLA) instead of fixed micro-lens array in 3D light field microscope can extend the effective depth of field from 60 um to 780 um. To achieve the LC le…
Robust Depth Estimation for Light Field Microscopy
2019
Light field technologies have seen a rise in recent years and microscopy is a field where such technology has had a deep impact. The possibility to provide spatial and angular information at the same time and in a single shot brings several advantages and allows for new applications. A common goal in these applications is the calculation of a depth map to reconstruct the three-dimensional geometry of the scene. Many approaches are applicable, but most of them cannot achieve high accuracy because of the nature of such images: biological samples are usually poor in features and do not exhibit sharp colors like natural scene. Due to such conditions, standard approaches result in noisy depth ma…
Evaluation of a Completely Robotized Neurosurgical Operating Microscope
2012
BACKGROUND Operating microscopes are essential for most neurosurgical procedures. Modern robot-assisted controls offer new possibilities, combining the advantages of conventional and automated systems. OBJECTIVE We evaluated the prototype of a completely robotized operating microscope with an integrated optical coherence tomography module. METHODS A standard operating microscope was fitted with motors and control instruments, with the manual control mode and balance preserved. In the robot mode, the microscope was steered by a remote control that could be fixed to a surgical instrument. External encoders and accelerometers tracked microscope movements. The microscope was additionally fitted…