Search results for "Contrast"

Peticiones en alemán y español: un estudio contrastivo en conversaciones coloquiales prototípicas y periféricas

2020

En esta tesis se analiza y compara el uso que hacen los hablantes de alemán y español de las peticiones a partir de dos situaciones comunicativas distintas: las situaciones cotidianas y las competitivas o retos. Se parte de las hipótesis, por un lado, de que el entorno interaccional influye directamente en el proceso de formación y reconocimiento de estas acciones sociales y, por otro lado, de que existen diferencias interlingüísticas entre ambas lenguas. Además, se hace una revisión de las corrientes que conforman el marco teórico: el tratamiento que han recibido las peticiones a lo largo de la historia, la aportación de los modelos de variación diafásica y el enfoque contrastivo procedent…

Estudio diacrónico contrastivo castellano-chino de unidades fraseológicas con mención de color

2019

La tesis trata de un estudio contrastivo diacrónico de las unidades fraseológicas castellanas y chinas. La mayoría de los estudios contrastivos de la fraseología española y de la china se efectúa desde un punto de vista semántico-pragmático, didáctica o sociolingüístico, mientras que nuestro trabajo se realiza desde un punto de vista diacrónico y no solo se limita al campo semántico-pragmático, sino que también se efectúa en el nivel gramatical. Entre las innumerables unidades fraseológicas, hemos elegido como objeto de nuestra investigación aquellas que contienen términos cromáticos. El criterio de Berlin y Kay, Basic color terms, junto con otros trabajos que se concentran específicamente …

Estudio acústico de las vocales del noreste de China y de su adquisición por parte de hablantes con castellano como L1 y catalán como L1

2020

En esta tesis se presentan el sistema vocálico del chino y las diferencias acústicas entre las vocales chinas pronunciadas por hablantes nativas del noreste de China y por participantes españolas. La tesis persigue tres objetivos: en primer lugar, introducir el sistema vocálico del chino, centrándonos en las vocales del mandarín del noreste de China para describir fonéticamente las peculiaridades de su sistema vocálico. En segundo lugar, estudiar las semejanzas y las diferencias entre el sistema vocálico del castellano, del catalán y del chino, y comparar las vocales chinas pronunciadas por hablantes nativas del noreste de China y las pronunciadas por informantes castellanohablantes y valen…

Giant hepatocellular adenoma as cause of severe abdominal pain: a case report

2007

Abstract The authors describe the case of a large hepatocellular adenoma diagnosed in a 30-year old woman who came to us complaining of acute pain in the upper abdominal quadrants. The patient had been taking an oral contraceptive pill for the last ten years. We present the clinical features, the diagnostic work-up and the treatment prescribed.

Ricerche in tema di società questuarie

2019

Intorno al regime delle società di tipo questuario – riconducibili agli schemi teorici della societas universorum quae ex quaestu veniunt – e delle società unius alicuius negotiationis e unius rei, si profusero gli sforzi interpretativi dei giuristi romani, fin dalla fine dell’età repubblicana. La monografia scientifica ripercorre le tracce della individuazione della nozione stessa di quaestus (guadagno), con particolare riferimento alla inclusione al suo interno delle donazioni cd. remuneratorie; ancora, ricostruisce il dibattito giurisprudenziale sorto intorno alla questione se i soci – nella determinazione delle quote – dovessero rispettare una proporzione rispetto ai conferimenti, con u…

Perfusion MRI in normal and abnormal pituitary gland. A preliminary study.

1997

Perfusion MRI (magnetic resonance imaging) of the pituitary gland was performed in 20 healthy volunteers and 63 patients with various lesions involving the pituitary gland. All patients underwent sequential contrast-enhanced MRI using spoiled gradient recalled sequences with high temporal resolution (7 seconds). Four pituitary areas (pituitary stalk, posterior lobe, postero-superior, and antero-inferior adenohypophysis) were tested with a selected region of interest. Maximal contrast percentual variation was calculated. The timing of enhancement in normal patients matched perfectly with normal pituitary vascularization. Abnormal timing in pathological condition was investigated.

An Investigation of the Roles of Group Identification, Perceived Ability, and Evaluative Conditions in Stereotype Threat Experiences

2019

The Multi-Threat Framework distinguishes six qualitatively distinct stereotype threats. Up to now, few studies have been performed to identify the situational and individual determinants of different stereotype threat experiences. This study investigates the role of group identification, perceived ability, and evaluative conditions (private/public) in six stereotype threat experiences for 261 French Physical Education Students. The results show that the expression level of the different stereotype threats does not vary according to evaluative conditions. In contrast, group identification affects all the forms of stereotype threats, and for three forms of stereotype threats, this effect is …

Gadodiamide and gadopentetate dimeglumine in MRI versus spiral CT in the diagnosis of liver lesions.

2002

Which Attribute of Ceiling Color Influences Perceived Room Height?

2018

Objective:We investigate effects of the hue, saturation, and luminance of ceiling color on the perceived height of interior spaces.Background:Previous studies have reported that the perceived height of an interior space is influenced by the luminance of the ceiling, but not by the luminance contrast between ceiling and walls: brighter ceilings appeared higher than darker ceilings, irrespective of wall and floor luminance. However, these studies used solely achromatic colors. We report an experiment in which we extend these findings to effects of chromatic ceiling colors.Methods:We presented stereoscopic room simulations on a head-mounted display (Oculus Rift DK2) and varied hue (red, green,…

Reproducibility of imaging human knee cartilage by delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) at 1.5 Tesla

2009

Summary Objective The purpose of this study was to investigate the day-to-day reproducibility of the delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) measurement at different knee joint surfaces in healthy subjects at 1.5 Tesla (T). Methods The dGEMRIC experiment was repeated for 10 asymptomatic volunteers three times with an average interval of 5 days between scans. The measurement was performed from a single sagittal slice through the center of the lateral femoral condyle and from the center of the patella in the axial plane. Cartilage was manually segmented into superficial, deep and full-thickness regions of interests (ROIs) at different topographical locations of the femur, tibia…