Search results for "video"
showing 10 items of 1348 documents
Activation of PPARβ/δ inhibits leukocyte recruitment, cell adhesion molecule expression, and chemokine release
2009
Abstract Activation of the nuclear receptor PPARb/d inhibits acute inflammatory responses in vitro with human primary cells and in vivo by targeting the endothelial cell-leukocyte interaction. The infiltration of PMNs into tissues is a prominent feature in inflammation. The mechanism underlying PMN recruitment depends on the release of chemotactic mediators and CAM expression on endothelial cells. The nuclear receptor PPARβ/δ is widely expressed in many tissues, including the vascular endothelium; however, its role in acute inflammation remains unclear. Using intravital microscopy in the mouse cremasteric microcirculation, we have shown that activation of PPARβ/δ by its selective ligand GW5…
The Short-Access Mother–Baby-(SAMBA) Cholangioscopy System
2014
Conventional mother–baby cholangioscopy systems have significant limitations including poor image resolution, limited maneuverability and fragile cholangioscopes. We propose the novel short-access mother–baby-(SAMBA) cholangioscopy system that involves a very short and flexible cholangioscope that is introduced in a dedicated mother duodenoscope with an extra distal side port. Clinical feasibility of this device is demonstrated in three complex cases with cholangiopathies. The strengths of SAMBA cholangioscopy are improved imaging quality and excellent maneuverability of the baby that allows access of small intrahepatic ducts. Evaluation of suspected intrahepatic biliary disease is an excel…
Evaluation of dynamic microbial communities in a styrene-degrading biotrickling filter using 16S rDNA tag pyrosequencing and denaturing gradient gel …
2014
Accurately characterizing microbial communities within bioreactors undergoing dynamic operating conditions is an essential first step towards understanding the relationship between microbial community structure and bioreactor performance. A detailed assessment of the changes in microbial populations within a styrene-degrading biotrickling filter was carried out using samples collected at multiple time points ranging from 21 to 155 days of biotrickling filter operation. Examination of microbial populations was conducted by 16S rDNA tag pyrosequencing and denaturing gradient gel electrophoresis (DGGE). Validation of pyrosequencing results was performed by quantitative polymerase chain reactio…
Filter-based infrared detectors for high temperature size exclusion chromatography analysis of polyolefins: calibration with a small number of standa…
2012
Infrared detection has been shown to be very appropriate for high temperature analysis of polyolefins. After some early reports in which dispersive or single-band filter-based detectors were applied, Fourier transform detectors have been described for this application, in order to improve the method sensitivity. Modern simple filter-based detectors prove, however, comparable sensitivity while providing a number of practical advantages when coupled to chromatographic systems: reduced cell volume, simplified hardware, continuous generation of absorbance chromatograms, as well as simpler data collection and processing. A practical method for calibration, using multiple-band signals obtained wi…
The function of contextual knowledge: A videotaped class session in France
2015
This paper concerns seeing; specifically, what should and what can be seen in a classroom situation in a progressive school in Paris. It focuses on a lesson given in a foreign cultural context and the possibility of documenting it and reconstructing it: first, as far as possible, unaffectedly and out of context, to achieve comparative and interpretative classroom research. The emphasis will be on the way the subject matter is set up and the role the learners assume. It will become apparent that technical recordings, which are helpful in allowing literal transcriptions and descriptions, tempt us into abandoning objectiveness, thereby overlooking certain facts and circumstances. Only contextu…
Autonomic Brokerage Service for an End-to-End Cloud Networking Service Level Agreement
2014
8 pages; International audience; Today, cloud networking which is the ability to connect the user with his cloud services and to interconnect these services within an inter-cloud approach, is one of the recent research areas in the cloud computing research communities. The main drawback of cloud networking consists in the lack of Quality of Service (QoS) assurance and management in conformance with a corresponding Service Level Agreement (SLA). In this paper, we propose a framework for self-establishing an end-to-end service level agreement between a Cloud Service User (CSU) and multiple Cloud Service Providers (CSPs) in a cloud networking environment using brokerage service. We focus on Qo…
A study on recovering the cloud top-height from infra-red video sequences
2004
In this paper we present some preliminary results on an opticalfow based technique aimed at recovering the cloud-top height from infra-red image sequences. The recovery of the cloud-top height from satellite infra-red images is an important topic in meteorological studies, and is traditionally based on the analysis of the temperature maps. In this work we explore the feasibility for this problem of a technique based on a robust multi-resolution opticalfow algorithm. The robustness is achieved adopting a Least Median of Squares paradigm. The algorithm has been tested on semi-synthetic data (i.e. real data that have been synthetically warped in order to have a reliable ground truth for the mo…
Teachers’ responses to children in emotional distress: A study of co-regulation in the first year of primary school in Norway
2020
The purpose of this study was to explore how first-grade teachers respond to pupils in emotional distress within the framework of co-regulation. Co-regulation in this context refers to an adult–chi...
L'introduzione dell'articolo 612-ter del codice penale in materia di diffusione illecita di immagini o video sessualmente espliciti (art. 10, l. 19 l…
2020
Il capitolo affronta l'introduzione del delitto di cui all'art. 612-ter, comunemente noto come "revenge porn".
Noticing-prefaced recoveries of the interactional space in a video-mediated business meeting
2020
Drawing on conversation analysis and authentic data from a video-mediated multiparty meeting, this study investigates the sequential and temporal organisation of recoveries of the interactional space. It focuses on moments in which either an auditory or a visual barrier emerges, and the participants orient to these troubles through intensified bodily-visual displays: embodied noticings. The analysis illustrates noticing-prefaced recoveries of the interactional space as procedural and multimodal accomplishments that require close attentiveness to the co-participants’ verbal and visual conduct and to the contingencies of the meeting. The study highlights not only the affordances of video-medi…