235 research outputs found
Estudio analĂtico de las habilidades de razonamiento segĂşn la taxonomĂa de Bloom incluidos en el currĂculo de educaciĂłn fĂsica y deporte basado en el enfoque por Competencias en la escuela de secundaria en Argelia
This study aims to reveal the scope of the presence of reasoning skills according to Bloom's taxonomy in the competency indicators included in the physical education and sports curriculum of a secondary school in Algeria. To achieve the objectives of the study, the technique of content analysis was used, and the validity and stability were tested using the Holsti method. The main findings of the study were as follows: the competency indicators contain most of the reasoning skills according to Bloom's taxonomy, as well as, however, neglect the ability to analyze and the low presence of the cognitive aspect of the skills of reasoning according to Bloom's taxonomy in the competency indicators included in the physical education and sports curriculum.Este estudio pretende desvelar el alcance de la presencia de habilidades de razonamiento de acuerdo a la taxonomĂa de Bloom en los indicadores de competencia incluidos en el currĂculo de educaciĂłn fĂsica y deportiva de una escuela de secundaria en Argelia. Para lograr los objetivos del estudio, se utilizĂł la tĂ©cnica de análisis de contenido, y se comprobĂł la validez y la estabilidad usando el mĂ©todo de Holsti. Los principales hallazgos del estudio fueron los siguientes, los indicadores de competencia contienen la mayorĂa de las habilidades de razonamiento de acuerdo con la taxonomĂa de Bloom, asĂ como, sin embargo, descuida la habilidad de análisis y la baja presencia del aspecto cognitivo de las habilidades de razonamiento segĂşn la taxonomĂa de Bloom en los indicadores de competencias incluidos en el currĂculo de educaciĂłn fĂsica y deporte
EUS-guided Anastomosis Complication in a Patient with Roux-en-Y Gastric Bypass: Dehiscence of the Surgical Anastomosis During Endoscopic Mucosal Resection Across EUS-guided Jejunum-gastric Anastomosis with Lumen Apposing Metal Stent
Introduction: Roux-en-Y gastric bypass (RYGB) is one of the most common surgical procedures for the management of morbid obesity. However, RYGB poses technical difficulties in exploring the gastric remnant and in performing endoscopic biliary interventions due to altered anatomy. Recently, EUS guided gastro-gastric anastomosis to access the excluded stomach has been introduced in order to allow direct trans-gastric interventions. Method and Material: We report the case of a 38-year-old female referred to our unit to undergo EUS direct trans-gastric intervention (EDGI) for the management of a small stone in the biliary tract. Pre-procedural CT scan highlighted an abnormal distension of the gastric remnant. EUS guided jejuno-gastric anastomosis was carried out with the deployment of a 15 x 10 mm lumen apposing metal stent (LAMS). Results: After 3 days, an upper GI endoscopy was performed, highlighting a mobile 25 mm polyp near the pylorus. Therefore endoscopic resection was planned before the performance of the ERCP. Piecemeal endoscopic mucosectomy was carried out with no evidence of any adverse event. However, endoscopic evaluation after specimen retrieval detected an almost complete dehiscence of the anastomosis. Emergency surgery was decided with restoration of the continuity of the gastric cavity to allow future endoscopic examinations/procedures. Discussion: Here, we report the first case of dehiscence of the surgical gastro-jejunal anastomosis during EDGI procedure. Performing an ERCP during EDGI is probably safer than performing gastric interventions. When performing EDGI, it is paramount to carefully evaluate the type of planned gastric procedure and to adopt a tailored approach according the several variables involved
Estudio analĂtico de las habilidades de razonamiento segĂşn la taxonomĂa de Bloom incluidos en el currĂculo de educaciĂłn fĂsica y deporte basado en el enfoque por Competencias en la escuela de secundaria en Argelia
[Resumen] Este estudio pretende desvelar el alcance de la presencia de habilidades de razonamiento de acuerdo a la taxonomĂa de Bloom en los indicadores de competencia incluidos en el currĂculo de educaciĂłn fĂsica y deportiva de una escuela de secundaria en Argelia. Para lograr los objetivos del estudio, se utilizĂł la tĂ©cnica de análisis de contenido, y se comprobĂł la validez y la estabilidad usando el mĂ©todo de Holsti. Los principales hallazgos del estudio fueron los siguientes, los indicadores de competencia contienen la mayorĂa de las habilidades de razonamiento de acuerdo con la taxonomĂa de Bloom, asĂ como, sin embargo, descuida la habilidad de análisis y la baja presencia del aspecto cognitivo de las habilidades de razonamiento segĂşn la taxonomĂa de Bloom en los indicadores de competencias incluidos en el currĂculo de educaciĂłn fĂsica y deporte.[Abstract] This study aims to reveal the scope of the presence of reasoning skills according to Bloom's taxonomy in the competency indicators included in the physical education and sports curriculum of a secondary school in Algeria. To achieve the objectives of the study, the technique of content analysis was used, and the validity and stability were tested using the Holsti method. The main findings of the study were as follows: the competency indicators contain most of the reasoning skills according to Bloom's taxonomy, as well as, however, neglect the ability to analyze and the low presence of the cognitive aspect of the skills of reasoning according to Bloom's taxonomy in the competency indicators included in the physical education and sports curriculu
Algorithmic processing to aid in leukemia detection
Background: I present our medical context with some basic concepts in order to understand the results of our work, and then I begin the explanation of mathematical morphology. I will conclude by the description of algorithmic processing propose in this paper. Cancers, including leukemia and lymphoma, can cause uncontrolled growth of an abnormal type of blood cell in the bone marrow, resulting in a greatly increased risk for infection and or serious bleeding.
Methods: We present detailed steps of our proposed systems, to obtain a final result that shows the detection of abnormal cells. It typically starts with a median filter pre-processing step and then applies different morphologic operator, which allows us to segment the original image and detect cancerous cells. The basic idea behind all the operators in the mathematical morphology is to compare the set of objects to analyze another object of known form, which is called a structuring element. The structuring element is a geometric figure, simple to form, known or arbitrary, and can be a circle, segment, square, or triangle.
Results: We show the different results obtained after testing carried out in algorithmic processing using MATLAB: To ameliorate the visualization of the abnormal blood cells, we have applied the elements basis morphological operations in a different way. We have performed an opening by reconstruction and a closing by reconstruction. The obtained result show that we have obtained an efficient detection of the targeted objects (abnormal blood cells or leukemia).
Conclusion: In this paper, we have utilized the operators of the mathematical morphology with the aim to detect abnormal cells for diagnostic aid and transmission of accurate and precise clinical information, which helps specialists in medicine (hematologists) to distinguish abnormal cells or cancerous and to follow the evolution of leukemia. The algorithmic processing presented in this article has been able to perform the task of detection of cancerous cells with success; it has produced remarkable and satisfactory results. We think of the future concept as a system of aid for diagnosis from microelectronics integration to the base of reconfigurable technologies applied to cells for the goal of quantification of the cancer region
La socialisation entre groupes professionnels de la politique étrangère
Cet article cherche à expliquer la transformation de la politique étrangère depuis la fin de la guerre froide à partir de l’hypothèse de l’évolution des formes d’interactions entre groupes professionnels qui la font : militaires, diplomates et industriels. En nous appuyant sur la genèse des activités civilo-militaires françaises en Bosnie et au Kosovo entre 1992 et 2001 comme cadre empirique, nous nous attachons à objectiver les dynamiques intersectorielles qui imprègnent la compétition bureaucratique entre administrations, les mobilisations entre hauts fonctionnaires et la division interministérielle du travail en matière de gestion de crises internationales. Nous nous demandons dans quelle mesure les « gestionnaires » de crises forment un espace institutionnel, un groupe professionnel ou un champ social en voie d’autonomisation au sein de la politique étrangère et de défense actuelle.This article intends to explain the transformation of the foreign policy since the end of the Cold War through the hypothesis of the evolution of the interactions between the professional groups: military, diplomats and industrialists. Using the genesis of French civil-military activities in Bosnia and in Kosovo between 1992 and 2001 as empirical framework, we endeavor to objectify the cross-sector dynamics which permeate with the bureaucratic competition between administrations, the mobilizations of senior officials and the interministerial division of labor in matter of international crises management. We wonder to what extent the international crises “managers” form an institutional space, a professional group or a social field in process of empowerment within the current foreign and defense policy
A JPEG-Like Algorithm for Compression of Single-Sensor Camera Image
International audienceThis paper presents a JPEG-like coder for image compression of single-sensor camera images using a Bayer Color Filter Array (CFA). The originality of the method is a joint scheme of compression.demosaicking in the DCT domain. In this method, the captured CFA raw data is first separated in four distinct components and then converted to YCbCr. A JPEG compression scheme is then applied. At the decoding level, the bitstream is decompressed until reaching the DCT coefficients. These latter are used for the interpolation stage. The obtained results are better than those obtained by the conventional JPEG in terms of CPSNR, DeltaE2000 and SSIM. The obtained JPEG-like scheme is also less complex
Radar ULB pour la vision à travers les murs : mise au point d'une chaîne de traitement de l'information d'un radar imageur
This report is focused on Through-the-wall surveillance (TTS) using UWB radar, with the objective of developing a complete information processing pipeline (IPP) which can be used by different types of imaging radar. To do this, we want to take into account any a priori information, nor on the target, or their environmental context. In addition, the IPP must meet criteria of adaptability and modularity to process information from two types of radar, including pulsed and FMCW developed in two projects that are part of the work of this thesis. Radar imaging is an important point in this context ; we approach it by combining backprojection and trilateration algorithms and show the improvement with the use of a CFAR detector taking into account the shape of the targets signatures.The development of the IPP is our main contribution. The flow of radar images obtained is divided into two parts. The first dynamic sequence contains moving targets are tracked by a multiple hypothesis approach. The second static sequence contains stationary targets and interior walls that are highlighted by Radon transformbases approach. We developed a simulator operating in time and frequency domain to design the algorithms of the IPP and test their robustness. Several simulated scenarios and experimental measurements show that our IPP is relevant and robust. It is thus validated for both radar systems.Nous nous intéressons dans cette thèse à la vision à travers les murs (VTM) par radar ULB, avec comme objectif la mise au point d’une chaîne de traitement de l’information (CTI) complète pouvant être utilisée par différents types de radar imageur VTM. Pour ce faire, nous souhaitons prendre en compte le moins possible d’information a priori, ni sur les cibles, ni sur leur contexte environnemental. De plus, la CTI doit répondre à des critères d’adaptabilité et de modularité pour pouvoir traiter les informations issues de deux types de radar, notamment, le pulsé et le FMCW, développés dans deux projets dans lesquels s’inscrivent les travaux de cette thèse. L’imagerie radar est un point important dans ce contexte, nous l’abordons par la combinaison des algorithmes de rétroprojection et trilatération, et montrons l’amélioration apportée avec l’utilisation d’un détecteur TFAC prenant en compte la forme des signatures des cibles. La mise au point de la CTI est notre principale contribution. Le flux d’images radar obtenu est scindé en deux parties. La première séquence dynamique contient les cibles mobiles qui sont ensuite suivies par une approche multihypothèse. La seconde séquence statique contient les cibles stationnaires ainsi que les murs intérieurs qui sont détectés par une méthode s’appuyant sur la transformée de Radon. Nous avons produit un simulateur VTM fonctionnant dans le domaine temporel et fréquentiel pour mettre au point les algorithmes de la CTI et tester leur robustesse. Plusieurs scénarios de simulation ainsi que de mesures expérimentales, montrent que la CTI construite est pertinente et robuste. Elle est ainsi validée pour les deux systèmes radar
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