29 research outputs found

    Reflexions sobre el sufix -ada en català

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    In the present contribution the various functions and meanings of the Catalan suffix -ada are examined, leading to results that are also relevant for other Romance languages that have got this suffix. This gives rise to the problem of the so-called ‘possible’ verbs like (*)gauchar, *forar, etc. They can be very important when explaining the semantic features of the suffix -ada. However, some linguists either dispute or simply negate their existence, only because they are not represented in any dictionary of the concerned language. In contrast to this opinion the present contribution supplies evidence, that makes the existence of these implicit verbs credible, even veracious

    Energy efficient Franeker

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    [EN] Since 1988, the city of Franeker has many historic and listed buildings. The law guarantees maintained all these monuments. These buildings often do not meet the comfort requirements demanded by the user and also with the current standards. Current users are now facing the problem of using a lot of energy to acclimate their homes, which results from high costs on their bills. My idea is to resolve this problem, through energetic measures and to reduce consumption. In this study, it is illustrated all the possible variants and the best option for each case. Moreover, it has explanations and a clear view that the used solution respects the historical values. The problem described above leads us to ask the following research question: “How can we update the energy efficiency of an historical building without compromising the architectural value?” (In the house in Eise Eisingastraat 10).[ES] Desde 1988 la ciudad de Franeker tiene muchos edificios protegidos e históricos. La ley garantiza la conservación de estos monumentos. A menudo, estos edificios no reúnen los requerimientos de confortabilidad que demandan los usuarios, ni cumplen las normativas actuales. Hoy en día los usuarios se enfrentan al problema de la utilización de una gran cantidad de energía para climatizar sus casas, con el gasto que ello supone. La idea es resolver este problema por medio de una reducción del consumo y de otras medidas energéticas. En este estudio se ilustran las posibles variantes y la mejor opción para cada caso. Además, se explica y se muestra con claridad que la solución empleada respeta los valores históricos de los edificios. Esta descripción del problema nos lleva a realizarnos la siguiente pregunta como idea central de la investigación: “¿Cómo podemos mejorar la eficiencia energética de un edificio histórico respetando sus valores arquitectónicos?” (en la vivienda ubicada en Eise Eisingastraat , 10)Vañó Navarro, CA. (2014). Energy efficient Franeker. http://hdl.handle.net/10251/57653.Archivo delegad

    Afectación cardíaca por esclerodermia, mucho más que hipertensión pulmonar

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    Scleroderma affects the heart in many ways and in a great percentage of cases. Clinical manifestations range from alterations in the conduction system to ventricular dysfunction or pulmonary hypertension. We present a case of scleroderma with cardiac involvement. In this clinical case, we will explain the role of cardiac magnetic resonance for the diagnosis of the different heart injuries. Furthermore, we will explain the usefulness of cardiac MRI as an early marker of cardiac involvement in less advanced cases and the prognostic value of some parameters such as T1 and T2 mapping.La esclerodermia afecta en un porcentaje importante de casos al corazón pudiendo cursar de múltiples formas, desde alteraciones en el sistema de conducción a disfunción ventricular o hipertensión pulmonar. Presentamos un caso de esclerodermia con afectación cardíaca. En nuestro caso, mostramos como la resonancia magnética puede hacer un diagnóstico preciso de las distintas presentaciones. Además, se revisará la utilidad de la RMN cardíaca como marcador precoz de afectación cardíaca en casos menos avanzados y el posible uso pronóstico de algunos parámetros como el T1 y el T2 mapping

    Using CT Data to Improve the Quantitative Analysis of 18F-FBB PET Neuroimages

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    18F-FBB PET is a neuroimaging modality that is been increasingly used to assess brain amyloid deposits in potential patients with Alzheimer’s disease (AD). In this work, we analyze the usefulness of these data to distinguish between AD and non-AD patients. A dataset with 18F-FBB PET brain images from 94 subjects diagnosed with AD and other disorders was evaluated by means of multiple analyses based on t-test, ANOVA, Fisher Discriminant Analysis and Support Vector Machine (SVM) classification. In addition, we propose to calculate amyloid standardized uptake values (SUVs) using only gray-matter voxels, which can be estimated using Computed Tomography (CT) images. This approach allows assessing potential brain amyloid deposits along with the gray matter loss and takes advantage of the structural information provided by most of the scanners used for PET examination, which allow simultaneous PET and CT data acquisition. The results obtained in this work suggest that SUVs calculated according to the proposed method allow AD and non-AD subjects to be more accurately differentiated than using SUVs calculated with standard approaches.This work was supported by the MINECO/FEDER under the TEC2012-34306 and TEC2015-64718-R projects and the Ministry of Economy, Innovation, Science and Employment of the Junta de Andalucía under the Excellence Project P11-TIC- 7103. The work was also supported by the Vicerectorate of Research and Knowledge Transfer of the University of Granada

    Tronco común de venas pulmonares inferiores: reporte de caso y revisión de la literatura

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    The presence of a common trunk of the inferior pulmonary veins is an extremely rare pathology that has been reported in 0.6% of patients undergoing pulmonary vein studies. We present the case of a patient diagnosed by computed tomography, which provides precise images of the anatomy of the veins, atrium, and their relationships with other structures.La presencia de un tronco común de venas pulmonares inferiores es una patología extremadamente infre-cuente que ha sido reportada en el 0.6% de los pacientes sometidos a algún estudio de venas pulmonares. Presentamos el caso de un paciente diagnosticado por tomografía computarizada, la cual proporciona imá-genes precisas de la anatomía de las venas, las aurículas, y sus relaciones con otras estructuras

    Impact of amyloid-PET in daily clinical management of patients with cognitive impairment fulfilling appropriate use criteria

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    To evaluate the use of amyloid-positron emission tomography (PET) in routine clinical practice, in a selected population with cognitive impairment that meets appropriate use criteria (AUC). A multicenter, observational, prospective case-series study of 211patients from 2 level-3 hospitals who fulfilled clinical AUC for amyloid-PET scan in a naturalistic setting. Certainty degree was evaluated using a 5-point Likert scale: 0 (very low probability); 1 (low probability); 2 (intermediate probability); 3 (high probability); and 4 (practically sure), before and after amyloid PET. The treatment plan was considered as cognition-specific or noncognition-specific. Amyloid-PET was positive in 118 patients (55.9%) and negative in 93 patients (44.1%). Diagnostic prescan confidence according amyloid-PET results showed that in both, negative and positive-PET subgroup, the most frequent category was intermediate probability (45.7% and 55.1%, respectively). After the amyloid-PET, the diagnostic confidence showed a very different distribution, that was, in the negative-PET group the most frequent categories are very unlikely (70.7%) and unlikely (29.3%), while in the positive- PET group were very probable (57.6%) and practically sure (39%). Only in 14/211 patients (6.6%) the result of the amyloid-PET did not influence the diagnostic confidence, while in 194 patients (93.4%), the diagnostic confidence improved significantly after amyloid- PET results. The therapeutic intention was modified in 93 patients (44.1%). Specific treatment for Alzheimer disease was started, before amyloid-PET, in 80 patients (37.9%). This naturalistic study provides evidence that the implementation of amyloid-PET is associated with a significant improvement in diagnostic confidence and has a high impact on the therapeutic management of patients with mild cognitive impairment fulfilled clinical AUC

    Anterior segment optical coherence tomography angiography to evaluate the peripheral fitting of scleral contact lenses

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    Purpose: The aim of this study was to show the potential applicability of optical coherence tomography angiography (OCTA) for the evaluation of the peripheral fitting of fully scleral contact lenses. Methods: A pilot study was proposed fitting three different scleral contact lenses (Irregular Corneal Design [ICD]) with different sagittal heights (4200, 4800, and 5600 mm) in a healthy volunteer of 27 years old. We evaluated by means of optical coherence tomography (OCT, DRI Triton) the apical clearance achieved with each of the three lenses fitted. The impact over scleral flow was assessed with the OCTA module of the same device. Results: The apical clearance was 310, 901, and 1680 µm with the scleral lenses of sagittal heights 4200, 4800, and 5600 µm, respectively. With OCTA, we evaluated the impact of the lens bearing on the conjunctival vascular flow, observing an area of vascular interruption of 0, 25, and 75% with the lenses of 4200, 4800, and 5600 µm of sagittal heights, respectively. The vascular interruption was induced in the perilimbar area, suggesting the need of readjusting the limbal clearance zone of the lens. Conclusion: Fully scleral contact lens fitting may be optimized with the use of OCTA, allowing the practitioner to perform the fitting with better control of the peripheral bearing of the lens on the conjunctival tissue, assessing the impact on vascular structures. This potential use of OCTA must be investigated further in future studies including large samples of eyes.The author DPP has been supported by the Ministry of Economy, Industry and Competitiveness of Spain within the program Ramón y Cajal, RYC-2016-20471

    Calidad de vida tras la implantación de un marcapasos

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    Describimos un estudio prospectivo para evaluar la calidad de vida relacionada con el estado de salud, mediante el perfil de salud de Nottingham (PSN). y poderla comparar con valoraciones cardiológicas convencionales como la sintomatología y la prueba de esfuerzo, en un grupo de 33 pacientes (65.5 + 2.57 años), antes y después (postimplante, primer y segundo mes) de la implantación de un marcapasos definitivo (A1P). La mejoría clínica tras la implantación, fue mayor en los pacientes que referían haber tenido síncopes (100%), siendo menos marcada en los que referían debilidad (62.5%) y dolor torácico (75%). En los 2 meses de seguimiento hubo 3 hospitalizaciones (10%) por complicaciones del MP (infección de la bolsa, desplazamiento de la sonda auricular y estimulación diafragmática no controlable con reprogramación). A los dos meses de seguimiento el 57% de los pacientes sigue evitando hacer esfuerzos; asimismo, expresaban miedo a fallo del marcapasos 10 pacientes (30%), sin embargo el contacto con los electrodomésticos sólo generaba temor en 2 pacientes (6%). El área de movilidad del PSN se correlacionó con la capacidad de realizar la prueba de esfuerzo (0.371, p < 0.05). A los 2 meses de la implantación del marcapasos hubo una mejoría de la calidad de vida global expresada por/a puntuación total del PSN (14.41 ± 1.7 frente a 9.8 ± 1.0). El análisis por áreas evidenció mejoría generalizada de las áreas: dolor (p < 0.05), movilidad (p < 0.01), aislamiento social (p < 0.01), y reacciones emocionales (p < 0.05). Concluimos que el perfil de salud de Nottingham (PSN) evalúa aceptablemente la mejoría de la salud autopercibida experimentada por nuestros pacientes tras el implante de un marcapasos
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