984 resultados para Verbal complementation


Relevância:

20.00% 20.00%

Publicador:

Resumo:

El reconocimiento de las emociones supone la integración de los aspectos físicos relativos a los movimientos de la musculatura facial, pero también y desde diferentes enfoques se da relevancia al contexto que rodea a dicha expresión en el momento de ser percibida. En la presente investigación se analizó el papel del contexto verbal sobre el reconocimiento de la expresión facial de alegría y tristeza. Participaron 50 sujetos a los que se les pidió que visualizaran expresiones mixtas neutras rodeadas por cinco palabras positivas, negativas o neutras (contexto verbal), que describían la vida de dicha persona (fase I). Posteriormente se les presentaron durante 39 milisegundos expresiones faciales mixtas de alegría o tristeza de las mismas personas que aparecieron en la fase anterior para que decidieran lo más rápido posible si la emoción expresada era de alegría o tristeza (fase II). Los resultados mostraron un peor reconocimiento de la expresión de tristeza respecto a la de alegría cuando el contexto verbal previo era positivo. Por otro lado, la expresión de tristeza se reconoció mejor cuando iba precedida de un contexto verbal negativo respecto a cuando era positivo. Se discuten los resultados dentro del modelo constructivista de la emoción.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The function of the extracytoplasmic AUXIN-BINDING-PROTEIN1 (ABP1) is largely enigmatic. We complemented a homozygous T-DNA insertion null mutant of ABP1 in Arabidopsis thaliana Wassilewskia with three mutated and one wild-type (wt) ABP1 cDNA, all tagged C-terminally with a strepII-FLAG tag upstream the KDEL signal. Based on in silico modelling, the abp1 mutants were predicted to have altered geometries of the auxin binding pocket and calculated auxin binding energies lower than the wt. Phenotypes linked to auxin transport were compromised in these three complemented abp1 mutants. Red light effects, such as elongation of hypocotyls in constant red (R) and far-red (FR) light, in white light supplemented by FR light simulating shade, and inhibition of gravitropism by R or FR, were all compromised in the complemented lines. Using auxin-or light-induced expression of marker genes, we showed that auxininduced expression was delayed already after 10 min, and light-induced expression within 60 min, even though TIR1/AFB or phyB are thought to act as receptors relevant for gene expression regulation. The expression of marker genes in seedlings responding to both auxin and shade showed that for both stimuli regulation of marker gene expression was altered after 10-20 min in the wild type and phyB mutant. The rapidity of expression responses provides a framework for the mechanics of functional interaction of ABP1 and phyB to trigger interwoven signalling pathways.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Tesis (Licenciado en Lenguas Castellana, Inglés y Francés).--Universidad de La Salle. Facultad de Ciencias de La Educación. Licenciatura en Lengua Castellana, Inglés y Francés, 2014

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Verbal fluency is the ability to produce a satisfying sequence of spoken words during a given time interval. The core of verbal fluency lies in the capacity to manage the executive aspects of language. The standard scores of the semantic verbal fluency test are broadly used in the neuropsychological assessment of the elderly, and different analytical methods are likely to extract even more information from the data generated in this test. Graph theory, a mathematical approach to analyze relations between items, represents a promising tool to understand a variety of neuropsychological states. This study reports a graph analysis of data generated by the semantic verbal fluency test by cognitively healthy elderly (NC), patients with Mild Cognitive Impairment – subtypes amnestic(aMCI) and amnestic multiple domain (a+mdMCI) - and patients with Alzheimer’s disease (AD). Sequences of words were represented as a speech graph in which every word corresponded to a node and temporal links between words were represented by directed edges. To characterize the structure of the data we calculated 13 speech graph attributes (SGAs). The individuals were compared when divided in three (NC – MCI – AD) and four (NC – aMCI – a+mdMCI – AD) groups. When the three groups were compared, significant differences were found in the standard measure of correct words produced, and three SGA: diameter, average shortest path, and network density. SGA sorted the elderly groups with good specificity and sensitivity. When the four groups were compared, the groups differed significantly in network density, except between the two MCI subtypes and NC and aMCI. The diameter of the network and the average shortest path were significantly different between the NC and AD, and between aMCI and AD. SGA sorted the elderly in their groups with good specificity and sensitivity, performing better than the standard score of the task. These findings provide support for a new methodological frame to assess the strength of semantic memory through the verbal fluency task, with potential to amplify the predictive power of this test. Graph analysis is likely to become clinically relevant in neurology and psychiatry, and may be particularly useful for the differential diagnosis of the elderly.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Objetivo: Conocer la opinión de los profesionales de enfermería sobre la utilidad del registro y valoración del dolor agudo como quinta constante clínica; así como, determinar la correlación de la escala visual analógica (EVA) con la verbal simple (EVS) y la verbal numérica (EVN). Material y métodos: Estudio observacional descriptivo. Cuestionario de opinión "ad hoc" y correlación lineal entre escalas. Análisis estadístico descriptivo e inferencial mediante el coeficiente de correlación intraclase y el método de Bland-Altman. Resultados: muestra de 102 profesionales (58% mujeres). El 90,2% cree importante que se mida el dolor agudo; el 65,7% ven la escala EVA poco práctica; el 80,4% no sabe cuándo se debe reevaluar el dolor (p<0,05). La concordancia entre escalas fue baja-moderada, siendo la EVN la mejor alternativa a la EVA. Conclusiones: el procedimiento de registro y medición del dolor fue muy bien valorado por los profesionales, pero su implementación presentó baja adherencia. La concordancia obtenida no fue significativa para sustituir con garantías a la EVA.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Cada vez son más los casos en donde una persona muere durante el forcejeo que mantiene con las Fuerzas y Cuerpos de Seguridad del Estado durante el proceso de detención. Esto supone un gran reto profesional para el médico forense que realiza la autopsia. En muchas ocasiones, los resultados obtenidos tras la autopsia no son entendidos por la sociedad, familiares del fallecido ni correctamente divulgados por los medios de comunicación, pareciendo que dicha muerte queda en un limbo judicial. Estas muertes, generalmente son consecuencia del síndrome de delirium agitado. Este síndrome no es bien conocido en nuestro país por parte de médicos ni por cuerpos de seguridad. Se engloban dentro de las muertes en privación de libertad o death in custody. En su producción intervienen factores como la patología previa del paciente, consumo de drogas, especialmente cocaína, y la forma de llevar a cabo el proceso de inmovilización del detenido.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Dissertação de Mestrado apresentada ao Instituto Superior de Psicologia Aplicada para obtenção de grau de Mestre na especialidade de Psicologia Social e das Organizações.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Dissertação de Mestrado apresentada ao Instituto Superior de Psicologia Aplicada para obtenção de grau de Mestre na especialidade de Psicologia Clínica.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

During its life cycle Leishmania spp. face several stress conditions that can cause DNA damages. Base Excision Repair plays an important role in DNA maintenance and it is one of the most conserved mechanisms in all living organisms. DNA repair in trypanosomatids has been reported only for Old World Leishmania species. Here the AP endonuclease from Leishmania (L.) amazonensis was cloned, expressed in Escherichia coli mutants defective on the DNA repair machinery, that were submitted to different stress conditions, showing ability to survive in comparison to the triple null mutant parental strain BW535. Phylogenetic and multiple sequence analyses also confirmed that LAMAP belongs to the AP endonuclease class of proteins.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Esta investigación tiene objetivos en dos vertientes esenciales. El primero, considerado camino fundamental para el segundo, radica en revelar los puntos conflictivos del proceso de enseñanza-aprendizaje de la temporalidad verbal del español para los estudiantes de ELE de origen árabe, en general, y egipcio, en particular. El segundo objetivo es tratar esos puntos problemáticos poniendo a prueba algunas estrategias metodológicas, actitudes y consejos con el fin de permitir la superación de las interferencias interlinguales e intralinguales. Ambos objetivos implicaron un estudio detallado de la estructuración de la temporalidad verbal en la lengua materna, en este caso, el árabe, y en la española, concretando y precisando los conceptos implicados en ese terreno, como tiempo físico, cronológico, lingüístico; y el aspecto y el modo gramaticales. Desde un enfoque contrastivo se ha procedido a concretar los errores que suelen cometer los aprendices, mediante el diseño de tres ejercicios que presentan los usos que representan dichos errores. El estudio se ha aplicado en un curso intensivo poniendo en práctica consejos pedagógicos y estrategias metodológicas, adoptando la teoría de Guillermo Rojo (1974) de conceptualización de las relaciones temporales (anterioridad, simultaneidad y posterioridad) y categorizándolas según la orientación directa e indirecta con el origen (el momento del habla). Igualmente, el curso se ha basado en la distribución de los usos de los tiempos verbales en rectos y dislocados, clasificación muy bien procesada por los informantes. De gran provecho para el análisis contrastivo han sido los artículos de Santos Gargallo (1990), Galindo Merino (2009) y Alexopoulou (2007) En la parte experimental de este estudio se aplicó un Pretest para analizar los errores frecuentes destacando los errores interlinguales e intralinguales de los participantes con el fin de tratarlos y mejorar su percepción de las relaciones temporales...

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Dissertação de Mestrado, Ciências da Linguagem, Faculdade de Ciências Humanas e Sociais, Universidade do Algarve, 2016

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fondo Margaritainés Restrepo

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The recent recrudescence of Mycobacterium tuberculosis infection and the emergence of multidrug-resistant strains have created an urgent need for new therapeutics against tuberculosis. The enzymes of the shikimate pathway are attractive drug targets because this route is absent in mammals and, in M. tuberculosis, it is essential for pathogen viability. This pathway leads to the biosynthesis of aromatic compounds, including aromatic amino acids, and it is found in plants, fungi, bacteria, and apicomplexan parasites. The aroB-encoded enzyme dehydroquinate synthase is the second enzyme of this pathway, and it catalyzes the cyclization of 3-deoxy-D-arabino-heptulosonate-7-phosphate in 3-dehydroquinate. Here we describe the PCR amplification and cloning of the aroB gene and the overexpression and purification of its product, dehydroquinate synthase, to homogeneity. In order to probe where the recombinant dehydroquinate synthase was active, genetic complementation studies were performed. The Escherichia coli AB2847 mutant was used to demonstrate that the plasmid construction was able to repair the mutants, allowing them to grow in minimal medium devoid of aromatic compound supplementation. In addition, homogeneous recombinant M. tuberculosis dehydroquinate synthase was active in the absence of other enzymes, showing that it is homomeric. These results will support the structural studies with M. tuberculosis dehydroquinate synthase that are essential for the rational design of antimycobacterial agents.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

There is a growing societal need to address the increasing prevalence of behavioral health issues, such as obesity, alcohol or drug use, and general lack of treatment adherence for a variety of health problems. The statistics, worldwide and in the USA, are daunting. Excessive alcohol use is the third leading preventable cause of death in the United States (with 79,000 deaths annually), and is responsible for a wide range of health and social problems. On the positive side though, these behavioral health issues (and associated possible diseases) can often be prevented with relatively simple lifestyle changes, such as losing weight with a diet and/or physical exercise, or learning how to reduce alcohol consumption. Medicine has therefore started to move toward finding ways of preventively promoting wellness, rather than solely treating already established illness.^ Evidence-based patient-centered Brief Motivational Interviewing (BMI) interventions have been found particularly effective in helping people find intrinsic motivation to change problem behaviors after short counseling sessions, and to maintain healthy lifestyles over the long-term. Lack of locally available personnel well-trained in BMI, however, often limits access to successful interventions for people in need. To fill this accessibility gap, Computer-Based Interventions (CBIs) have started to emerge. Success of the CBIs, however, critically relies on insuring engagement and retention of CBI users so that they remain motivated to use these systems and come back to use them over the long term as necessary.^ Because of their text-only interfaces, current CBIs can therefore only express limited empathy and rapport, which are the most important factors of health interventions. Fortunately, in the last decade, computer science research has progressed in the design of simulated human characters with anthropomorphic communicative abilities. Virtual characters interact using humans’ innate communication modalities, such as facial expressions, body language, speech, and natural language understanding. By advancing research in Artificial Intelligence (AI), we can improve the ability of artificial agents to help us solve CBI problems.^ To facilitate successful communication and social interaction between artificial agents and human partners, it is essential that aspects of human social behavior, especially empathy and rapport, be considered when designing human-computer interfaces. Hence, the goal of the present dissertation is to provide a computational model of rapport to enhance an artificial agent’s social behavior, and to provide an experimental tool for the psychological theories shaping the model. Parts of this thesis were already published in [LYL+12, AYL12, AL13, ALYR13, LAYR13, YALR13, ALY14].^