Browsing Theses & Dissertations by Title
Now showing items 749-768 of 4100
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La curva de Beveridge y la dinámica del mercado laboral en Puerto Rico
(2020)El estudio aborda la relación entre vacantes laborales y el desempleo para la economía de Puerto Rico. El análisis usa como fundamento teórico la curva de Beveridge, que relaciona la tasa de desempleo con la tasa de los ... -
Curvas de fragilidad para estructuras de pórticos de hormigón armado en Puerto Rico involucrando el efecto de las paredes de mampostería no estructurales
(2008)Las estructuras de pórticos de hormigón armado con paneles de mampostería como relleno representan una porción significativa de las estructuras construidas en Puerto Rico y en muchas partes del mundo. Muchos de los ingenieros ... -
Custodia compartida: Un análisis crítico de los discursos del Tribunal de Apelaciones en los procesos de adjudicación de custodia de la Ley 223 del 2011.
(2021-12-17)Esta investigación giró en torno al objetivo general de analizar la construcción discursiva de la custodia compartida en las determinaciones del Tribunal de Apelaciones al amparo de la Ley 223. El estatuto es conocido como ... -
Cyclic organic peroxides identification and trace analysis by Raman microscopy and open-air chemical ionization mass spectrometry
(2009)The persistent use of cyclic organic peroxides in explosive devices has increased the interest in study these compounds. Development of methodologies for the detection of triacetone triperoxide (TATP) and hexamethylene ... -
Damage assessment under repeated slamming and creep of foam core sandwich composites
(2013)Sandwich composites are increasingly being used in the ship hull design due mainly to (i) their high strength to weight ratio, and (ii) the ability to functionally grade them for a broad range of commercial and naval ... -
Damage detection and identification in sandwich composites using neural networks
(2005)Marine, aerospace, ground and civil structures can receive unexpected loading that may compromise integrity during their life span. Therefore, improvement in detecting damage can save revenue and lives depending upon the ... -
Data-driven life prediction model for bearing failure
(2009)Throughout this work, a prognostic tool for the prediction of the remaining useful life of bearings using experimental data based on vibration data analysis is developed using MATLAB®. The experimental data used us that ... -
The daughters of Persephone: Defilement as a rite of passage in Game of Thrones and A Song of Ice and Fire
(2021-05-13)Persephone's abduction and descent to the Underworld is certainly a tragedy. However, this event impulses her to become queen of her own hell, turning the situation in her favor. In a similar way, contemporary popular ... -
[De] construyendo la resiliencia urbana : el mito de la ciudad postcrisis en Puerto Rico y la reconstrucción de los centros urbanos
(2022-05-20)Las ciudades desde sus inicios han sido el escenario de crisis que sobrepasan los aspectos sociales, económicos y políticos como lo son los cataclismos. Fenómenos que a su vez se les adjudican ser unos de los responsables ... -
Dealing with ill conditioning in recursive parameter estimation for a synchronous generator
(2006)This thesis presents how to deal with ill-conditioning in recursive parameter estimation for a synchronous generator using subset selection, the Extended Kalman Filter (EKF), and the Iterated Extended Kalman Filter (IEKF). ... -
The death of human referents in the age of AI : An analysis of virtual cloning in video through the case of Tavus and Synthesia
(2023-05-29)The development of synthetic media and virtual humans has the potential to significantly impact the way we interact with the world around us. These technologies can create realistic and engaging simulations of people and ... -
A decentralized negotiation framework for restoring electrical energy delivery networks with intelligent power routers - iprs
(2005)Current Electrical Energy Delivery Networks (EEDN) are managed from a centralized operations and control center. In the event of a system failure, human operators at this control centers device schemes for restoring the ... -
Deciphering bahía fosforescente: New approaches towards the understanding of this unique ecosystem
(2015)For decades, bioluminescent bays and lagoons have intrigued and puzzled researchers due to the accumulation of high cell densities of the bioluminescent dinoflagellate Pyrodinium bahamense var. bahamense. In recent years ... -
Deciphering the <em>Epargyreus clarus</em> (silver spotted skipper) wing patterning genes
(2020-05-20)Butterfly wing patterns have captivated evolutionary and developmental biologists for decades because of their vast diversity. Studies have focused on the molecular basis of pattern variation in the Nymphalidae, with little ... -
Deciphering the Debaryomyces spp. complex using next generation sequencing: Are they the same species?
(2018-05)Debaryomyces hansenii is a unicellular marine yeast, from the Phylum Ascomycota and is widely distributed in nature. It has been isolated from high salt environments like estuaries and bays, to salty foods and cheese. ... -
A decision support system for gate operations at Clarence Cannon National Wildlife Refuge (CCNWR) in Pike County, MO
(2020-05-25)The purpose of the project is to create a decision support system (DSS) by developing guidelines on how to operate a gravity drain structure gate (GDSG) in the Clarence Cannon National Wildlife Refuge (CCNWR), located in ... -
A decision support tool for internal tankers logistics in Chemical Industry
(2010)This study presents a decision support tool (DST) developed in Visual Basic for Applications (VBA) for managing the logistics of a Yard in the Chemical Industry with the objective to minimize operational costs. It describes ... -
A decision tree-based approach for missing value imputation of mixed-type data
(2017-05)Researchers and practitioners of many areas of knowledge frequently struggle with missing data. Missing data is a problem because almost all standard statistical methods assume that the information is complete. Missing ... -
Decision under uncertainty : moment of discovery for new scientific hypothesis
(2022-05-12)In this thesis we will be exploring the full extent of Peirce’s Pragmaticism. Differentiating from his former Pragmatism, which contemporary scholars uttered for a more psychological view rather than one combined with a ... -
Decision-making under uncertainty and certainty: Information use, deliberative and affective processes, and state/trait characteristics
(2023-05-19)Background and aims: Although many studies have provided evidence of links between anxiety and risk avoidance processes, few have evaluated how anxiety and other psychological states (e.g., anxiety sensitivity and worry) ...