Browsing Theses & Dissertations by Title
Now showing items 2450-2469 of 4062
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M-loc: real time location system for wireless mesh networks
(2008)This thesis presents the design and implementation of a real time location system (RTLS) for wireless mesh networks. The system uses the received signal strength as the method of distance measurement. A prototype of this ... -
Machine learning tools for detecting tweets related to vehicle crashes
(2018)Vehicle crashes are a global problem that occur each day. They happen due to environmental factors, the state of the road and bad maneuvers performed by drivers. Information about vehicle crashes is published on social ... -
Macrobiofouling on open-ocean submerged aquaculture cages in Puerto Rico
(2007)Biofouling in aquaculture cages is known as a significant problem in aquaculture cage farm operations. The purpose of this study was to assess biofouling composition and percentage of biofouling coverage over time on nets ... -
Madracis auretenra (Scleractinia: Pocilloporidae): Testing our knowledge of systematics, biology and connectivity in the western North Atlantic
(2009)The systematic biology of the Caribbean scleractinian coral Madracis auretenra Locke, Weil and Coates 2007 is presented. This includes a new species description and brief taxonomic history, an explanation for the name ... -
Magical sexualities: Witchcraft in film and television
(2020-04-17)The purpose of this research is to analyze varied representations of the figure of the witch through television series and the implication these representations have within the field of feminist studies. For this investigation, ... -
Magnetic and structural characterization of solid solution NixZn(1-x)Fe2O4 (x = 0.5 AND x = 1) synthesized by high energy ball milling
(2013)Mechanochemical reactions of NiO, ZnO, and α-Fe2O3 were carried out in a planetary mill to produce Nickel ferrite (NiFe2O4) and Nickel-Zinc ferrite (Ni0.5Zn0.5Fe2O4) nanocrystallites. All measurements were made at room ... -
Magnetically and thermally responsive nanoparticles for biomedical applications.
(2013)The synthesis of magnetic nanoparticles which respond to alternating magnetic fields by Brownian and Neel relaxation mechanisms are of great interest in determining mechanical properties of complex fluids in the size scale ... -
Magneto-optical studies of Co-doped NiO thin films
(2010)In this work, we carried out magneto-optical measurements on transparent insu- lating thin films. We used a monochromator with a Xenon lamp source to generate monochromatic linearly polarized light. Combining this source ... -
Magnetodielectric effect and conduction mechanism in BFO-REMO multiferroics
(2021-08-03)We report herein the synthesis and suitable approach to improve the magnetoelectric (ME) coupling of Bismuth ferrite oxide (BFO) by fabrication of BFO<sub>1−x-</sub>GMO<sub>x</sub> and BFO<sub>1−x-</sub>DMO<sub>x</sub> ... -
Magnetorheological characterization of magneto-responsive fluids
(2012)The work presented in this dissertation focuses primarily on the rheological characterization of magneto-responsive fluids, consisting of suspensions of magnetic nanoparticles in non-magnetic liquid media. The rheology of ... -
Magnetorheology in rotating magnetic fields
(2007)We studied the flow of ferrofluid induced by rotating magnetic fileds. This flow was observed for first time in fi96F by Moskowitz and Rosensweig [App1. Ph4s. Gett., 10, pag. 3Ofi (fi96F)] and since then researchers has ... -
Magnitud y distribución espacial de la salinidad y sodicidad del suelo a escala de campo en el Valle de Lajas, Puerto Rico
(2021-06)Se evaluó un método alterno para estimar la salinidad y sodicidad del suelo a escala local en el Valle de Lajas, Puerto Rico. Para esto, se midió la conductividad eléctrica aparente del suelo (ECaV) utilizando el sensor ... -
Maintaining neural function: the role of Gooseberry, the Pax 3/7 homologue in controlling synaptic growth, plasticity, and stability
(2019-12-09)Although neurons are long-lived cells little is known about the mechanisms responsible for maintaining their properties and cellular stability. Here, we investigate the pair-rule transcription factor Gooseberry (Gsb), ... -
The management and feeding ecology of the invasive lionfish (Pterois volitans) in Puerto Rico
(2016)Since the mid-1980s, two Indo-Pacific lionfishes, Pterois volitans and P. miles, have established a significant presence in the Western North Atlantic, including the Caribbean Sea and the Gulf of Mexico. The first documented ... -
Manejo de la pudrición de raíz del aguacate (Persea americana Mill.) utilizando controles biológicos, Arachis glabrata y composta de café
(2010)Se estudió el efecto de Bacillus subtilis, Trichoderma harzianum, Arachis glabrata como cobertor vegetal, composta de café y Fosetyl-Al para la pudrición de raíz (Phytophthora cinnamomi) de aguacate en invernadero y campo. ... -
Manejo de malezas, aplicación de gallinaza, y sus efectos en lombrices de tierra, propiedades físicas, químicas de suelo y rendimiento de banana ‘Grand Nain’ (Musa acuminata)
(2020-05-28)The objective was to determine the effects of chicken manure amendment and control of weeds with glyphosate on the soil and yield of Gran Nain (Musa acuminata) banana. The treatments were: CH (fertilization with 10-20-5-3 ... -
Manejo de nemátodos fitoparasíticos utilizando productos naturales y biológicos
(2006)This study is intended to evaluate different non-chemical agricultural practices such as organic amendments, biocontrol fungi and antagonist legumes in the control of plant parasitic nematodes. Greenhouse and field trials ... -
Manejo de querellas ambientales y fiscalización ciudadana en asuntos ambientales en Puerto Rico; ¿problemas y obstáculos?
(2023-12-01)¿Existe un problema con el manejo de querellas por denuncias ambientales en Puerto Rico? Por diversas razones, como son el alto nivel de pobreza y falta de recursos entre la población, para muchas personas la radicación ... -
Manejo integrado de nematodos fitoparásitos y Cosmopolites sordidus (Germar) en el cultivo de plátano
(2006)Plant-parasitic nematodes and the banana weevil Cosmopolites sordidus are recognized as the most limiting factors for plantain production in Puerto Rico. The use of pesticides has been the traditional method for pest ... -
Maneras políticas de jugar : transgresión y videojuegos.
(2020-05-22)Algunos desarrolladores de videojuegos entienden que los videojuegos pueden ser considerados como una actividad política. Diseñadores como Molleindustria (2003) y Gonzalo Frasca (2001) entienden que el videojuego político ...