Browsing Theses & Dissertations by Title
Now showing items 562-581 of 4032
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Comparación temporal y espacial de factores bióticos y abióticos en la Bahía Bioluminiscente en La Parguera y Puerto Mosquito en Vieques
(2006-07)Bioluminescent bays are unique natural marine ecosystems. Some of their principal characteristics are that they are relatively shallow, surrounded by mangrove systems and have a narrow entrance to the sea. Two ... -
Comparative Analysis of Complex Transportation Project Case Studies
(2020-06-01)Complex transportation projects are challenged daily by uncertainties and external factors that are typically not considered by the traditional project management approach. In 2013, the Federal Highway Administration (FHWA) ... -
Comparative framework for service reliability in electric distribution systems
(2005)Reliability indices are becoming the cornerstone for a liberalized energy market, and the main component of performance based rates (PBRs). Yet, comparison of reliability indices from intrinsically different systems provides ... -
Comparative genomic analysis of proteome reduction in the apicomplexans
(2020-05-16)Apicomplexans are alveolate parasites which include <em>Plasmodium falciparum</em>, the main cause of malaria, one of the world’s biggest killers from infectious disease. Apicomplexans are characterized by a reduction ... -
Comparative genomics of indels in primate lineages and the possible effect of the MET promoter indel on gene expression
(2016)Approximately six million years ago, the human and chimpanzee lineages diverged from a common ancestor resulting in two distinct species with a great number of different morphological, behavioral, cognitive and other ... -
Comparative protein analysis of two human isoforms Centrin 1 and Centrin 2
(2008)Centrin is a calcium binding protein belonging to EF-hand superfamily that is found only in eukaryotic cells from yeast to humans. Three isoforms have been identified in humans two of which are presented in this work: human ... -
A comparative study of nursesaccessing electronic patient record systems with pdas and tablet pcs
(2005)The main objective of this study was to identify potential usability problems, interaction differences, advantages, and disadvantages of two versions of a nursing documentation system: PDA and Tablet PC. A comparative study ... -
Comparative study using open-top growth chambers and ambient plots to evaluate the effect of chamber microclimate on sugarcane (Saccharum spontaneum Cv. US-67-22-2)
(2007)Cylindrical open-top chambers are experimental facilities that have been widely used to study the effect of CO2 and toxic gases on plants. The difference in the chamber environment constitutes unintentional effects of ... -
Comparative transcriptomics of the two distinct morphologies of the Caribbean octocoral Briareum asbestinum (Pallas, 1766)
(2019-05-15)Briareum asbestinum (Pallas, 1766) seems to be the only Caribbean species in the genus Briareum, with four additional species found in the Indo-pacific region. Since the 1970’s, interest from pharmaceutical companies to ... -
A comparative usability study of microsoft office 2007 and microsoft office 2003
(2010)This work presents a comparative usability study of the Microsoft Office 2003 and Office 2007 suites. The participants of the study had at least one year of experience using the 2003 and 2007 version of Word, Excel and ... -
A comparison in cluster validation techniques
(2004)Clustering may be defined as a process that aims to find partitions of similar objects. It is an unsupervised recognition procedure since there are no predefined classes that indicate grouping properties in the data set. ... -
A comparison of DEA models that consider the operating environment of a non-profit organization
(2011)Measuring and demonstrating results has become a question of survivability for many nonprofit organizations. Data Envelopment Analysis (DEA) is one of the analytical tools that can be used for benchmarking and target setting ... -
Comparison of elastic plate theories for micropolar materials
(2010-05)The purpose of this thesis is to develop a comparison between two theories of micropolar plates with moderate thickness. A comparison between the proposed and Eringen models is shown in the thesis. We used a special technique ... -
Comparison of molecular biomarkers within and across scleractinian coral species exposed to elevated temperatures
(2005)There has been an increase in the frequency and intensity of bleaching events on scleractinian corals since 1980. Coral bleaching in 1998 was the most extensive and severe ever recorded. These large scale bleaching ... -
A comparison of resolution enhancement methods as pre-processing for classification of hyperspectral images
(2004)The increasing use of Hyperspectral data is causing many data analysis problems; one of these problems is to reduce noise in Hyperspectral images. One approach is resolution enhancement technique based on oversampling ... -
Comparison of roughness lengths and turbulence intensities measured in landfalling hurricanes
(2009)An accurate estimate of surface roughness length is very important for many wind engineering applications. It is used in logarithmic wind profiles to determine wind speed in relation to height. It is also used to estimate ... -
Comparison of selected waste management scenarios for PET bottles in PR using SLCA methodology
(2021-05-14)An increase in bottled water consumption and a failure to recover the plastic bottles at the end of their life are decreasing the capacity and useful life of sanitary landfills, having a direct impact on the environment. ... -
Comparison of the macroinvertebrates communities in areas covered and devoid of the floating fern Salvinia spp. in Boquerón Wildlife Refuge (BWR) at Cabo Rojo, Puerto Rico
(2015)Mangrove forests are recognized as highly productive ecosystems; nevertheless, their ecological values, biota, and food webs are complex and yet to be understood. Scientific publications and information on aquatic invertebrates ... -
A comparison of the reproductive efficiency of Senepol, and Charbray crossed cows and the pre-weaning growth of their progeny
(2019-07-10)Senepol and Senepol crossbred genotypes have become some of the main beef cattle used in Puerto Rico. However, few studies have evaluated their reproductive efficiency on the island and their merit in breeding programs. ... -
Competencia inter-específica entre el pasto invasor Paspalum fasciculatum y cuatro especies de gramínea comúnmente utilizadas en sistemas de pastoreo en Puerto Rico
(2018)Grasses play an important role in the proper functioning of terrestrial ecosystems, as well as worldwide economic systems. Within these systems, the production of high quality forages for the nourishment and support of ...