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Desarrollo de una estrategía diagnóstica por resonancia magnética multimodal para tumores cerebrales.
2015
RESUMEN Esta Tesis estudia el uso combinado de las imágenes morfológicas obtenidas en los estudios de Resonancia Magnética para el diagnóstico de los tumores cerebrales con las nuevas técnicas que incluyen a la espectroscopía, perfusión y difusión cerebral por resonancia magnética. Estas técnicas tienen valor de biomarcadores, en cuanto son cuantificables, facilitan el diagnóstico precoz del tumor cerebral, su gradación, respuesta y seguimiento tras las medidas terapéuticas empleadas. A este uso combinado lo llamamos Resonancia Multimodal, cuyo fin es incrementar la precisión diagnóstica de los tumores del SNC y su monitorización tras tratamiento. Esta tesis sigue una estrategia diagnóstica…
Switching spatial scale reveals dominance-dependent social foraging tactics in a wild primate
2017
When foraging in a social group, individuals are faced with the choice of sampling their environment directly or exploiting the discoveries of others. The evolutionary dynamics of this trade-off have been explored mathematically through the producer-scrounger game, which has highlighted socially exploitative behaviours as a major potential cost of group living. However, our understanding of the tight interplay that can exist between social dominance and scrounging behaviour is limited. To date, only two theoretical studies have explored this relationship systematically, demonstrating that because scrounging requires joining a competitor at a resource, it should become exclusive to high-rank…
Aerosolization Performance of Jet Nebulizers and Biopharmaceutical Aspects
2019
In this work, 13 jet nebulizers, some of which in different configurations, were investigated in order to identify the biopharmaceutical constraints related to the quality attributes of the medicinal products, which affect their safety, efficiency, compliance, and effectiveness. The aerosolization parameters, including the aerosol output, aerosol output rate, mass median aerodynamic diameter, and fine particle fraction, were determined according to the European Standard EN 13544-1, using sodium fluoride as a reference formulation. A comparison between the aerosol output nebulization time and the fine particle fraction displayed a correlation between the aerosol quality and the nebulization …
Expired Tidal Volume and Respiratory Rate During Postnatal Stabilization of Newborn Infants Born at Term via Cesarean Delivery
2021
Objective To retrieve evolving respiratory measures in the first minutes after birth in normal neonates born at term using a respiratory function monitor. Study design We evaluated newborn babies delivered at term via cesarean after uncomplicated pregnancies. Immediately after birth, a respiratory function monitor with an adapted flowmeter and a face mask were applied at 2, 5, and 10 minutes after birth for 90 seconds in each period. We analyzed expired and inspired tidal volume, respiratory rate (RR), percentage of leakage, and number of analyzed breaths in each individual infant's recording using a respiratory research software. Results A total of 243 infants completed the study. The fina…
Monitorización no invasiva de los parámetros respiratorios al nacimiento: Evolución del volumen corriente espirado y la frecuencia respiratoria en lo…
2021
Objetivo: Definir los rangos de normalidad a través de un gráfico de percentiles para el volumen corriente espirado y la frecuencia respiratoria durante la estabilización postnatal en recién nacidos sanos a término (≥ de 37 semanas de gestación), nacidos por cesárea electiva, respirando espontáneamente, sin dificultad respiratoria y sin necesidad de reanimación, utilizando un monitor de función respiratoria, validado y no invasivo. Diseño del estudio: Se diseñó un estudio observacional prospectivo unicéntrico. El cual se llevó a cabo en el quirófano del servicio de Obstetricia del Hospital Universitario y Politécnico La Fe de Valencia. El muestreo fue no probabilístico de tipo consecutivo. …
Heart rate and other risk factors in outpatients with stable coronary artery disease in Latvia
2011
Heart rate and other risk factors in outpatients with stable coronary artery disease in Latvia The aim of the study was to characterise coronary artery disease (CAD) outpatients in Latvia by risk factors (RF) including heart rate (HR), physical examination data, clinical data and treatment. Twelve practitioners had each examined and questioned 6 to 12 patients with established CAD (n = 120). The most frequent cardiovascular (CV) RF and co-morbidity were dyslipidemia (94.2%) and hypertension (78.3%), respectively. Prevalence of increased resting HR (≥70 bpm) was 35.9% and 33.6%, when measured by pulse palpation and electrocardiography, respectively. Regarding other RFs, prevalence of treated…
BENEFICIOS RELACIONALES, SATISFACCIÓN Y LEALTAD EN EL COMERCIO MINORISTA: UNA COMPARATIVA INTERSECTORIAL
2009
RESUMENEn el contexto del marketing de relaciones, resulta de gran importancia para el establecimiento minorista identificar el tipo de beneficios de la relación que influye en mayor medida sobre sus resultados en términos de satisfacción del cliente y lealtad hacia el minorista, de manera que se garantice una relación continua y satisfactoria. Dichos beneficios pueden tener distinto peso en función del tipo de actividad llevada a cabo por el minorista. El presente trabajo pretende analizar empíricamente un modelo que refleje los distintos tipos de beneficios relacionales obtenidos por los clientes, así como los beneficios obtenidos por la organización en términos de lealtad del consumidor …
La stratégie de la distribution : des interrogations managériales aux contributions académiques.
2004
Le secteur du commerce de détail connaît une remise en cause d'un certain nombre de modèles stratégiques dominants qui ont accompagné les transformations de ce secteur depuis une cinquantaine d'années. Les professionnels du secteur sont ainsi confrontés à la recherche de nouveaux cadres normatifs susceptibles d'orienter leur prise de décision. Cet article analyse les contributions possibles des recherches académiques à trois champs stratégiques majeurs du distributeur : le cadre stratégique du détaillant, l'optimisation du canal de distribution et le positionnement de l'offre du point de vente.
ANALYSIS OF THE IMPACT OF EXOGENOUS FACTORS ON THE FINANCIAL PERFORMANCE OF ROMANIAN COMMERCIAL BANKS LISTED ON BUCHAREST STOCK EXCHANGE
2015
The interest of both creditors and debtors of a credit institution on the performance registered by commercial banks imposed shaping high prudential standards designed to not upset the credit institution and to contribute decisively to increase their health profitability. On bank performance it shows a significant influence on many factors. The study focuses its attention on the impact of research that external factors are likely to print to financial rate of credit institutions (one of the classic indicators used to measure bank performance). The variables studied were represented by: - external factors: GDP, inflation and exchange rate leu-euro - considered to be independent variables and…
THE FINANCIAL PERFORMANCE OF COMMERCIAL BANKS LISTED AND TRADED ON BUCHAREST STOCK EXCHANGE
2015
Even though banks are playing the role of financial intermediaries, their main objective is to obtain profit. The most commonly used indicator of the profitability assessment, according to the shareholder vision is represented by the return on equity. This study has focused on achieving a factor analysis on financial profitability obtained by the top three commercial banks by using the Du Pont. The purpose of this analysis was to identify the causes rate developments. The analysis was done over a period of eight years, respectively from 2007 since 2014. Data were taken from the financial statements published by the three credit institutions. The results have demonstrated that banks in order…