Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 49 for “"PPR"”.
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Impacts of Wetland Characteristics on Duck Use in the Prairie Pothole Region (PPR) 1987-2013
… I used an Akaike’s information-theoretic approach to assess several competing models at local and landscape scales. At the local scale, the best model that reflected the relationship between duck pairs and features showed wetland area, percentage of years dry, wetland regime, and percent …
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THE UTILITY OF PULSE PRESSURE MEASURED BY RADIAL ARTERIAL TONOMETRY IN DETERMINING CARDIOVASCULAR DISEASE IN ADULTS
… sequela compared to PPb. Relations of increased PPr with increased LVM in a cross-sectional was studied after adjustment for PPb. Second, relations of PPr with incident CHF over 4 years, was studied, after covariate adjustment in MESA. First, the multivariable models including PPb, PPr, and …
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Does process quality of inpatient care matter in potentially preventable readmission rates?
… potentially preventable hospital readmission (PPR) rates. Data Sources/Study Setting: This was an observational cross-sectional study of nonfederal acute-care hospitals located in two states California and Florida, discharging Medicare patients with a principal discharge diagnosis of heart …
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Pentatricopeptide proteins as tools for chloroplast engineering in Marchantia polymorpha
… analysis of pentatricopeptide repeat proteins (PPR) in M. polymorpha. The PPR proteins are a group of nuclear-encoded RNA-binding proteins that have seen a significant expansion in land plants, and which localise to the chloroplasts and mitochondria to facilitate organellar gene expression. The …
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The prevalence of occupational health problems in-flight crews (pilots and flight attendants: A systematic review and meta-analysis
… relatively common. The Pooled Prevalence Rate (PPR) by subgroup analysis showed the second most common OHPs to be Fatigue/Sleep related disorders(FSDs) (diseases or symptoms), which was higher in cockpit crew [PPR=66.64%, 95% confidence interval (CI): 52.65%–79.29%] compared to cabin crew …
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Dynamik und Energietransfer einer planktischen Crustaceengemeinschaft in Abhängigkeit von der Nahrungsgrundlage und den Planktivoren
… standen im Mittelpunkt. Primärproduktion (PPR) und Crustaceengrazing wurden in situ gemessen, Crustaceen-biomassen, -produktion und -verteilung bestimmt und mit den Daten der angrenzenden Teilprojekte in Beziehung gesetzt. Der prozentuale Anteil des Nanoplanktons an der absoluten PPR …
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Landscape planning in the context of European spatial planning: integration, cooperation, partecipation and perception
The Sardinian Regional Plan for the Landscape (PPR) was approved in 2006 as a response to statutory requirements and urgency to manage conflicts between environmental and economic needs in coastal areas. For these areas, the Sardinian PPR sets rules and policies to protect landscape and cultural …
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Unique Features and Neuronal Properties in a Multisensory Cortex
… cortical area of the posterior parietal cortex (PPr) of ferrets, the present experiments utilized a combination of immunohistological, neuroanatomical and multiple single-channel electrophysiological recording techniques. These experiments produced four main results. First, convergence of …
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AVALIAÇÃO DO IMPACTO DAS PRÓTESES PARCIAIS REMOVÍVEIS NA SAÚDE PERIODONTAL DE DENTES PILARES E NÃO PILARES: UMA REVISÃO SISTEMÁTICA
A prótese parcial removível (PPR) é uma opção de tratamento conservador, rápido e eficaz, indicada para indivíduos parcialmente edêntulos. E apesar de ser um tratamento que traz satisfação e qualidade de vida, tem sido associado a efeitos adversos no periodonto dos dentes pilares. Neste contexto, o …
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Modeling Wetland Use By Spring-Migrating Lesser Scaup (Aythya affinis) in Eastern South Dakota
… in South Dakota’s Prairie Pothole Region (PPR). Empirical data were used to develop a temporally dynamic spatial model to describe historic habitat suitability. The model was then applied to other parts of the PPR used by migrating scaup. The PPR spans from northern Iowa northward to …
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Terrestrial-Aquatic Linkages: Watershed (Geologic and Vegetation) Runoff Influences on Primary Production of a Sub Alpine Lake
… results. Compared to the primary productivity (PPr) rates of lake water, four-hour bioassays in fall 2010 exhibited decreased PPr in all treatments [additions of: nitrogen + phosphorus, forest litter interflow, alder spring water, silica + nitrogen + phosphorus, or a mixture of macro and …
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Towards unveiling the Photoactive Yellow Proteins: characterization of a halophilic member and a proteomic approach to study light responses
… also be part of multi-domain proteins such as Ppr from the phototroph Rhodospirillum centenum, where it forms the N-terminal domain that is followed by a central bacteriophytochrome (Bph) domain and by a C-terminal histidine kinase domain. The PYP domain acts as a blue-light switch reversing …
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Dendritic Spine Density Varies Between Unisensory and Multisensory Cortical Regions
… the higher-level rostral posterior parietal (PPr) and lateral rostral suprasylvian (LRSS) multisensory areas. Spine densities in S1 (avg 1.309 ± 0.247 spines/micron) and A1 (avg 1.343 ± 0.273 spines/micron) were measured to be significantly greater (p<0.05, t-test) than those observed in …
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High Slew Rate High-efficiency Dc-dc Converter
… without delay time. A parallel post regulator (PPR) is proposed for wide range input isolated DC-DC converter with secondary side control, which provides small part of output power and most of them are handled by unregulated rectifier with high efficiency. PPR is easy to achieve ZVS in primary …
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Futtermittelkundliche und In-vivo-Untersuchungen der praecaecalen Verdaulichkeit von Futterprotein und -aminosäuren zur Proteinbewertung von Futtermitteln für Pferde
… anhand von Unterschieden im postprandialen (ppr) Verlauf der Aminosäure Lysin nachvollzogen werden können, um die futtermittelkundlich-chemische Bewertung in vivo validieren zu können. Tiere, Material und Methoden: Im ersten Teil der Arbeit wurden 71 Futtermittel mittels Weender-Analyse und …
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Dynamics and Control of Higher-order Nonholonomic Systems
… slosh modes and Prismatic-Prismatic-Revolute (PPR) robots moving open liquid containers, as well as an interesting class of systems that do not admit asymptotically stabilizing continuous static or dynamic state feedback. Specific assumptions are introduced to define this class, which includes …
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Characterizing the Thermal Behavior of Pyrolytic Graphite Sheets (PGS) at Low Interface Pressures
… the design and testing of an experimental rig (PPR) for testing thermal interface materials under various average pressures and pressure profiles was presented. An empirical model was developed that demonstrates the effect that interface pressure profile has on component temperatures with PGS as …
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AI4PHOTOSENSE. Detección automática de fotoparoxismos en electroencefalogramas mediante Inteligencia Artificial. Aplicación en el diagnóstico de fotosensibilidad
… sea capaz de detectar automáticamente actividad PPR en grabaciones EEG, agilizando esta tediosa tarea para que el especialista pueda proceder con los siguientes pasos del diagnóstico de forma rápida y eficiente. El proyecto se ha elaborado en colaboración con los Servicios de Neurofisiología …
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Delineation of Surface Water Features Using RADARSAT-2 Imagery and a TOPAZ Masking Approach over the Prairie Pothole Region in Canada
The Prairie Pothole Region (PPR) is one of the most rapidly changing environments in the world. In the PPR of North America, topographic depressions are common, and they are an essential water storage element in the regional hydrological system. The accurate delineation of surface water bodies is …
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