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Now showing items 2731-2740 of 3130
Evaluation of the effect of substrate modulus of elasticity on cancerous cell cultures
(2014-05)
Cell adhesion and spreading affect physiological functions, such as cell growth, differentiation and motility. These characteristics in turn are affected by the properties of the substrate such as roughness, stiffness and ...
Asthma and genetics of admixture in Puerto Ricans
(2015)
Asthma is one of the most recognized complex human disorders, characterized by an airway obstruction due to an exacerbated immune response. Currently, it affects around 300 million people worldwide, showing an increased ...
Estudio de la confiabilidad de bases de datos comerciales para estimar costos de proyectos de construcción en Puerto Rico
(2016)
The use of various commercial databases is common for estimating the cost of construction projects. These databases contain information about the unit prices for the items that constitute a construction project. However, ...
Dynamics of seawater carbonate chemistry in a tropical coastal coral reef environment
(2013)
Diverse forcing such as biogenic and abiogenic calcification, carbonate sediment dissolution
or precipitation, and climate-related processes modulate seawater carbonate equilibrium and Ca2+
and Mg2+ proportions in near ...
Optimization of a fluid bed dryer by the implementation of a model predictive controller
(2006)
Optimization of the drying operation requires a model containing the operating variables for fluid bed dryers (FBD). Modeling of FBD is still uncertain since the drying process is unpredictable and relies on empirical ...
Xroaster: a tool for catalog management on databases middleware systems
(2003)
Currently there are very few tools available for managing the catalog of a Database Middleware System. The system administrators of the Middleware System need to manually add all the metadata necessary to configure and ...
Conocimientos y experiencias de los maestros de cursos ocupacionales de las escuelas especializadas del programa de educacion agricola al trabajar con estudiantes del programa de educacion especial
(2005)
This study was an attempt to determine the experiences and knowledge of the occupational teachers of Agricultural Education of the Specialized Schools (ìEscuelas Especializadas) of Puerto Rico with the special Education ...
Torsion theories, radicals and closure operators in the category of rings
(2009-05)
In 1971, Joachim Lambek published a result which gives an equivalence between torsion theo- ries (B,C) and idempotent radicals T in the category Mod R, establishing some properties of the classes of R-modules B and C and ...
Teorias de torsión en la categoría de espacios topológicos
(2009-05)
En Algebra, especificamente, dentro de la categoría de grupos abelianos, existen los conceptos de teoría de torsión y radical. Estos conceptos están estrechamente relacionados mediante una proposición que muestra una ...
Análisis y cuantificación de los indicadores de incivilidad percibidos por los estudiantes del RUM en sus áreas de vivienda
(2019-05-13)
The insecurity perception affects people’s quality of life. That is why, the aim of the thesis is to analyze and quantify the indicators of incivility perception, which is one of the factors that affect this problem. The ...