32 research outputs found
Análisis comparativo de la cultura organizacional en entidades financieras de Arequipa
In this research the organizational culture was assessed in four finnancial entities in Arequipa City base on a comparative analysis. There were 100 workers who participate in the sample and the Cameron and Quinn’s Organizational Culture Diagnosing Questionnaire (α= .793) was applied. The results indicate that in the four entities the culture orientated to the Market and Hierarquical type are stronger, but there were evidence about significant differences according to the sex and the enterprise where the workers come, so women tend to percieve a culture type Clan more than male cratic and Clan type organizational culture.En esta investigación, se evalúa la cultura organizacional en cuatro entidades financieras de la ciudad de Arequipa, sobre la base de un análisis comparativo. Para ello, se evaluaron 100 trabajadores de cuatro entidades financieras mediante el Cuestionario de Diagnóstico de la Cultura Organizacional de Cameron y Quinn (α= .793). Los resultados indican que, en las cuatro entidades, predomina una cultura de tipo Mercado y Jerárquica, pero se evidencian diferencias significativas en función del sexo y de la empresa de la que provienen los trabajadores, de modo que las mujeres tienden a percibir una cultura tipo Clan empresas tienden también hacia una cultura de Clan y Adhocrática
Herramienta de modelado disfuncional tridimensional basado en estudios de neuroimagen
El modelado disfuncional basado en estudios de neuroimagen mejora la comprensión de los cambios estructurales provocados ante la presencia de lesiones cerebrales. Actualmente, existen numerosas herramientas para el análisis y procesado de estudios de neuroimagen. Algunas de ellas, como el 3D Slicer, BrainVoyager y el FreeSurfer permiten la creación y navegación sobre modelos tridimensionales cerebrales sin alteraciones estructurales. Sin embargo, no se han detectado herramientas que permitan modelar tridimensionalmente lesiones a partir de estudios de neuroimagen, concretamente de estudios de resonancia magnética. El objetivo de este trabajo es el diseño de una metodología que permite la creación de este tipo de modelos y su visualización y navegación
Brain injury MRI simulator based on theoretical models of neuroanatomic damage
In order to improve the body of knowledge about brain injury impairment is essential to develop image database with different types of injuries. This paper proposes a new methodology to model three types of brain injury: stroke, tumor and traumatic brain injury; and implements a system to navigate among simulated MRI studies. These studies can be used on research studies, to validate new processing methods and as an educational tool, to show different types of brain injury and how they affect to neuroanatomic structures
Brain structures identification based on feature descriptor
Traumatic Brain Injury -TBI- -1- is defined as an acute event that causes certain damage to areas of the brain. TBI may result in a significant impairment of an individuals physical, cognitive and psychosocial functioning. The main consequence of TBI is a dramatic change in the individuals daily life involving a profound disruption of the family, a loss of future income capacity and an increase of lifetime cost. One of the main challenges of TBI Neuroimaging is to develop robust automated image analysis methods to detect signatures of TBI, such as: hyper-intensity areas, changes in image contrast and in brain shape. The final goal of this research is to develop a method to identify the altered brain structures by automatically detecting landmarks on the image where signal changes and to provide comprehensive information to the clinician about them. These landmarks identify injured structures by co-registering the patient?s image with an atlas where landmarks have been previously detected. The research work has been initiated by identifying brain structures on healthy subjects to validate the proposed method. Later, this method will be used to identify modified structures on TBI imaging studies
Detección y seguimiento de objetos en vídeos de actividades de vida diaria para rehabilitación de pacientes con daño cerebral adquirido
Las técnicas de rehabilitación permiten la recuperación y mejora de las funciones dañadas o deterioradas y ayuda al paciente con DCA a adaptarse a su nueva situación. El avance tecnológico que se ha producido en las últimas décadas, ha impulsado la investigación en el diseño y desarrollo de nuevos modelos de rehabilitación. La tecnología de vídeo interactivo se convierte en un elemento de apoyo en estos nuevos modelos rehabilitadores. Se hace necesario desarrollar nuevos algoritmos de segmentación y seguimiento que permitan dotar de información adicional a los vídeos. En este trabajo se han implementado y evaluado dos métodos que permiten realizar la detección y el seguimiento de objetos de interés
Knowledge representation tool for cognitiveprocesses modeling
In the last decades, neuropsychological theories tend to consider cognitive functions as a result of the whole brainwork and not as individual local areas of its cortex. Studies based on neuroimaging techniques have increased in the last years, promoting an exponential growth of the body of knowledge about relations between cognitive functions and brain structures [1]. However, so fast evolution make complicated to integrate them in verifiable theories and, even more, translated in to cognitive rehabilitation. The aim of this research work is to develop a cognitive process-modeling tool. The purpose of this system is, in the first term, to represent multidimensional data, from structural and functional connectivity, neuroimaging, data from lesion studies and derived data from clinical intervention [2][3]. This will allow to identify consolidated knowledge, hypothesis, experimental designs, new data from ongoing studies and emerging results from clinical interventions. In the second term, we pursuit to use Artificial Intelligence to assist in decision making allowing to advance towards evidence based and personalized treatments in cognitive rehabilitation. This work presents the knowledge base design of the knowledge representation tool. It is compound of two different taxonomies (structure and function) and a set of tags linking both taxonomies at different levels of structural and functional organization. The remainder of the abstract is organized as follows: Section 2 presents the web application used for gathering necessary information for generating the knowledge base, Section 3 describes knowledge base structure and finally Section 4 expounds reached conclusions
Dysfunctional 3D model based on structural and neuropsychological information
Acquired brain injury (ABI) 1-2 refers to any brain damage occurring after birth. It usually causes certain damage to portions of the brain. ABI may result in a significant impairment of an individuals physical, cognitive and/or psychosocial functioning. The main causes are traumatic brain injury (TBI), cerebrovascular accident (CVA) and brain tumors. The main consequence of ABI is a dramatic change in the individuals daily life. This change involves a disruption of the family, a loss of future income capacity and an increase of lifetime cost. One of the main challenges in neurorehabilitation is to obtain a dysfunctional profile of each patient in order to personalize the treatment. This paper proposes a system to generate a patient s dysfunctional profile by integrating theoretical, structural and neuropsychological information on a 3D brain imaging-based model. The main goal of this dysfunctional profile is to help therapists design the most suitable treatment for each patient. At the same time, the results obtained are a source of clinical evidence to improve the accuracy and quality of our rehabilitation system. Figure 1 shows the diagram of the system. This system is composed of four main modules: image-based extraction of parameters, theoretical modeling, classification and co-registration and visualization module
Neuroanatomic-based detection algorithm for automatic labeling of brain structures in brain injury
The number and grade of injured neuroanatomic structures and the type of injury determine the degree of impairment after a brain injury event and the recovery options of the patient. However, the body of knowledge and clinical intervention guides are basically focused on functional disorder and they still do not take into account the location of injuries. The prognostic value of location information is not known in detail either. This paper proposes a feature-based detection algorithm, named Neuroanatomic-Based Detection Algorithm (NBDA), based on SURF (Speeded Up Robust Feature) to label anatomical brain structures on cortical and sub-cortical areas. Themain goal is to register injured neuroanatomic structures to generate a database containing patient?s structural impairment profile. This kind of information permits to establish a relation with functional disorders and the prognostic evolution during neurorehabilitation procedures
El peritaje médico en la práctica judicial
Desde la cátedra, la judicatura, el ejercicio profesional y el estudio del derecho penal, en todos los niveles del quehacer, el interés por los avances científicos en el campo de la criminalística y la criminología es creciente. Más allá de la natural inquietud teórica, existen una gran preocupación por que estos se apliquen en la cotidianeidad de las investigaciones judiciales como una eficaz ayuda para el descubrimiento de la verdad.From the professorship, the judiciary, professional practice and the study of criminal law, at all levels of work, interest in scientific advances in the field of criminalistics and criminology is growing. Beyond the natural theoretical concern, there is a great concern that these are applied in the daily life of judicial investigations as an effective aid for discovering the truth
Temas Socio-Jurídicos. Volumen 18 No. 39 Diciembre 2000
En la presente edición, la número 39 de la Revista Temas Socio-Jurídicos, colocamos a disposición de nuestros lectores los ensayos elaborados por los profesores y estudiantes de la Facultad de Derecho de la Universidad Autónoma de Bucaramanga, durante el segundo semestre del presente año 2000. La crisis institucional de la nación inquieta de especial manera a la comunidad académica que se expresa en propuestas, análisis o a veces con simples manifestaciones de perplejidad, que son las que se postulan por los distintos voceros de esta, nuestra escuela jurídica, que este medio escrito las acoge, recopila y divulga para incentivar el debate. Reiteramos la convocatoria a los profesores, estudiantes y egresados a vincularse con sus escritos al desarrollo y proyección de este instrumento de comunicación entre la academia y la comunidad, que sin reticencias ni reparos censurantes deja al criterio del lector el lacerante estímulo de la crítica, en procura de generar a través de la controversia dialéctica un ámbito propicio para el desarrollo intelectual de quienes despliegan el placer de escribir.In this edition, number 39 of the Socio-Legal Issues Magazine, we place at the disposal of our readers the essays prepared by the professors and students of the Faculty of Law of the Autonomous University of Bucaramanga, during the second semester of the current year 2000 The institutional crisis of the nation is particularly worrying
way to the academic community that expresses itself in proposals, analyzes or sometimes with simple expressions of perplexity, which are the ones that are postulated by the different spokesmen of this, our legal school, that this written medium welcomes, compiles and disseminates to encourage the debate. We reiterate the call to professors, students and graduates to link with their writings to the development and projection of this instrument of communication between the academy and the community, which without reluctance or censorious objections leaves to the reader's discretion the lacerating stimulus of criticism, in seeks to generate through dialectical controversy a favorable environment for the intellectual development of those who display the pleasure of writing