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1
Zierold, Thorid. "Morphological variation and genetic diversity of Triops cancriformis (Crustacea: Notostraca) and their potential for understanding the influence of postglacial distribution and habitat fragmentation." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2009. http://nbn-resolving.de/urn:nbn:de:swb:105-7497276.
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Triops cancriformis (Crustacea: Notostraca) occurs in ephemeral habitats like rain pools or floodplain pools distributed over a large geographical range. The named habitats are disturbed by human impacts and, consequently, T. cancriformis is endangered throughout its distribution range. In the present thesis the populated habitats and threats are characterised and further morphological and genetic variations detected among and within European populations are reported. On the basis of recent investigations it is shown that T. cancriformis subspecies separation is hampered by an individual variability which points to the necessity of species revision. The analysis of mitochondrial gene sequence data suggests that the species has colonised most of Europe very recently. The advantage of a complex reproductive strategy in T. cancriformis in this process is discussed. The population structure resolved with nuclear DNA markers highlights that there is low allelic diversity among and within populations compared to other Branchiopoda (Daphnia). By means of the present study it can be shown that habitat conservation is most important to protect T. cancriformis.
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Helmling, Stephanie [Verfasser]. "Identification of Mixed Tropical Hardwood (MTH) by characteristic morphological features – a contribution to species protection : Identifizierung von Mixed Tropical Hardwood (MTH) mittels charakteristischer morphologischer Merkmale - ein Beitrag zum Artenschutz / Stephanie Helmling." Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky, 2020. http://d-nb.info/1225481325/34.
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ZHANG, TING. "Deciphering urban scenic area in China and Italy among HTC system." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2972555.
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Isaieva, O. A., and О. Г. Аврунін. "Image processing for video dermatoscopy." Thesis, Osaka, Japan, 2019. http://openarchive.nure.ua/handle/document/10347.
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Sun, Wenjuan. "Quantification of Morphological Characteristics of Aggregates at Multiple Scales." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/71787.
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Properties of aggregates are affected by their morphological characteristics, including shape factors, angularity and texture. These morphological characteristics influence the aggregate's mutual interactions and strengths of bonds between the aggregates and the binder. The interactions between aggregates and bond strengths between the aggregate and the binder are vital to rheological properties, related to workability and friction resistance of mixtures. As a consequence, quantification of the aggregate's morphological characteristics is essential for better quality control and performance improvement of aggregates. With advancement of hardware and software, the computation capability has reached the stage to rapidly quantify morphological characteristics at multiple scales using digital imaging techniques. Various computational algorithms have been developed, including Hough transform, Fourier transform, and wavelet analysis, etc. Among the aforementioned computational algorithms, Fourier transform has been implemented in various areas by representing the original image/signal in the spatial domain as a summation of representing functions of varying magnitudes, frequencies and phases in the frequency domain. This dissertation is dedicated to developing the two-dimensional Fourier transform (FFT2) method using the Fourier Transform Interferometry (FTI) system that is capable to quantify aggregate morphological characteristics at different scales. In this dissertation, FFT2 method is adopted to quantify angularity and texture of aggregates based on surface coordinates acquired from digital images in the FTI system. This is followed by a comprehensive review on prevalent aggregate imaging techniques for the quantification of aggregate morphological characteristics, including the second generation of Aggregate Image Measurement System (AIMS II), University of Illinois Aggregate Image Analyzer (UIAIA), the FTI system, etc. Recommendations are made on the usage of aggregate imaging system in the measurements of morphological parameters that are interested. After that, the influence of parent rock, crushing, and abrasion/polishing on aggregate morphological characteristics are evaluated. Atomic-scale roughness is calculated for crystal structures of five representative minerals in four types of minerals (i.e., α-quartz for quartzite/granite/gravel/aplite, dolomite for dolomite, calcite for limestone, haematite and magnetite for iron ore); roughness ranking at atomic-scale is further compared with surface texture ranking at macroscale based on measurement results using the FTI system and AIMS II. Morphological characteristics of aggregates before and after crushing test and micro-deval test are measured to quantitatively evaluate the influences of the crushing process and the abrasion/polishing process on morphological characteristics of aggregates, respectively.Ph. D.
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Alves, José Carlos Ramalhinho. "Perspectivas de utilização da figueira-da-india no Alentejo : caracterização de Opuntia sp. no litoral alentejano e na Tapada da Ajuda e estudo da instalação de um pomar." Master's thesis, ISA/UTL, 2011. http://hdl.handle.net/10400.5/4203.
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Mestrado em Engenharia Agronómica - Instituto Superior de AgronomiaA description of the different species of wild Opuntia in the Alentejo’s coastal area and in the Tapada da Ajuda (Lisbon) based on the morphological, phenological and physical-chemical description of the plants and fruits is made. The identified species were the Opuntia leucotricha DC., Opuntia stricta (Haw.) Haw., Opuntia monacanta (Willd.) Haw., Austrocylindropuntia subulata (Muehlenpf.) Backeb. and Opuntia ficus-indica (L.) Mill. (2 unknown varieties), which Opuntia ficus-indica is most interesting variety from the agronomic point of view. The fruits of O. ficus-indica have little acidity, high content of vitamin C, total phenols and TSS and a considerable amount of seeds (> 150). From the 2 varieties of O. ficus-indica (fruits with light-green pulp and orange pulp), the former shows better physical-chemical features comparing with the orange pulp fruit cultivar. This study demonstrates the high potential of the O. ficus-indica´s fruits as source of natural antioxidants and that the consumption of fruits and subproducts can provide substantial amounts for the human diet. Technical and economical assessment of an Opuntia orchard establishment was undertaken. As the edaphoclimatic conditions and the species/varieties of Opuntia with good physical-chemical features are advantageous there might be the possibility to develop a project considering the production of fruits to the national and international markets.
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Masini, Alessandro. "Influence of the casting parameters on the membrane morphological characteristics." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23058/.
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During the last century, the importance of membranes has increased drastically in our society; following this trend, their use in everyday life and in the industrial sector has dramatically rised. Consequently, membranes have been object of study in order to develop new material with new characteristics. This work aims at improving a current GVS portfolio-product, by developing a new filter based on alternative material and to substitute a competitor 3 membrane, whose production will be stopped due to the PerFluoroOctanoic Acid content, in a medical device that has to retain human urine. Firstly, the new polymer was studied, in order to understand how it affects membrane properties; once the basic information were obtained, we moved to analyze the influence of all the parameters in the solution preparation and in the casting process. Additionally, we have analyzed and selected the most appropriate membrane support and casting knife, to produce the most reliable membrane. Once we checked all the parameter, a first industrial trial was done based on the knowledge previously obtained; later, the trial has been analyzed to verify the stability of the product and to confirm the success of the industrial scale-up. The industrial trial has been compared with competitors’ membrane after urine test were carried out; the industrial trial showed superior results compared to the other membrane. Later we analyzed the impact of a standard laboratory testing protein on membranes, to observe if they were the main responsible for the pore occlusion after urine contact. Competitor 3 retains the same amount of protein of other membrane, for this reason, the hypothesis previously made was rejected.
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Bozkurt, Uğur Süel Akın. "The morphological characteristics of the block structure in central areas/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/sehirplanlama/T000303.pdf.
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KARKI, Saroj. "Study on Hydro-morphological Characteristics of Meandering Channels with Groynes." Kyoto University, 2019. http://hdl.handle.net/2433/244530.
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Costa, Tatiana Gouveia Pinto. "Performance, morphometric data and characteristics sleeve of sheep of race and santa inÃs brazilian somalis." Universidade Federal do CearÃ, 2007. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=1715.
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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel SuperiorThe objective present work was to evaluate the weight earnings, the morfometric and the characteristics of carcass of two genotype of lambs fedlot hair, Santa Ines and Somalis. Two experiments were accomplished: I - for weight earnings and morfometric of males and females, in confinement, and II - for evaluation of the characteristics of carcass of the males. In the experiment I, 10 males and 10 females of the race Santa Ines, and 10 males and 06 females of the race Somalis, were used, in a completely randomized design, in factorial outline 2x2 (two races and two sexes), which totaled four treatments. The adopted alimentary handling was the supply of pricked grass-elephant and concentrated (400g/head/day), distributed in the morning and in the afternoon. The experimental period had duration of 60 days, where every fifteen days the animals were heavy and accomplished the following weight measures: withers height (HW), crop height (CH),thorax height (TH), length of the body (LB), thoracic perimeter (TP), width of the thorax (WT), width of the croup (WC), croup length (CL), ileum width (IW) and width isqueum (IW). In the experiment II, a completely randomized design, where nine males Santa Ines and six Somalis were abated when they reached an average of 28 kg of alive weight. The appraised characteristics were, the alive discount weight (DW), hot carcass weigh (HCW), cold carcass weigh (CCW), hot carcass revenues (HCR) and cold (CCR), cooling loss (CL), internal length of the carcass (CLI) and the index of compactness of the carcass (ICC). In the cold carcass they were appraised the revenue of the following commercial cuts: neck, palette, whole loin, leg, chest, rack, rib and flank. There was significant difference (P<0.05) among the races and enter the sexes so much for the corporal weight as for most of the accomplished measures, of the 150 to the 210 days of age, and the race Santa Ines was superior the race Somalis, and the superior males the females. Among the carcass characteristics, the race Somalis presented smaller averages for PR and ML (P<0.05) than Santa Ines. There were not significant differences for the other carcass characteristics, as well as for the revenues of the cuts, among the appraised races. Santa Ines presented larger weights, weight measures, internal length of the carcass and it breaks for cooling than Somalis. With relationship to the revenue of the commercial cuts accomplished in the carcass the races sheeps Santa Ines and Somalis they were similar to each other
O objetivo presente trabalho foi avaliar o ganho de peso, a morfometria e as caracterÃsticas de carcaÃa de dois genÃtipos de ovinos deslanados, Santa InÃs e Somalis. Foram realizados dois experimentos: I â para ganho de peso e morfometria de machos e fÃmeas, em confinamento, e II â para avaliaÃÃo das caracterÃsticas de carcaÃa dos machos. No experimento I, foram utilizados 10 machos e 10 fÃmeas da raÃa Santa InÃs, e 10 machos e 06 fÃmeas da raÃa Somalis Brasileiros, em um delineamento inteiramente casualizado, em esquema fatorial 2x2 (duas raÃas e dois sexos), o qual totalizou quatro tratamentos. O manejo alimentar adotado foi o fornecimento de capim-elefante picado e concentrado (400g/ cabeÃa/dia), distribuÃdos pela manhà e à tarde. O perÃodo experimental teve duraÃÃo de 60 dias, onde a cada quinze dias os animais foram pesados e realizadas as seguintes medidas corporais: altura da cernelha (ACE), altura da garupa (AGA), altura do tÃrax (ATO), comprimento do corpo (CCO), perÃmetro torÃcico (PTO), largura do tÃrax (LTO), largura da garupa (LGA), comprimento da garupa (CGA), largura do Ãlio (LIL) e largura do Ãsquio (LIS). No experimento II, foi utilizado um delineamento inteiramente casualizado, onde nove machos Santa InÃs e seis Somalis foram abatidos quando atingiram uma mÃdia de 28 kg de peso vivo. As caracterÃsticas avaliadas foram, o peso vivo ao abate (PVA), peso da carcaÃa quente (PCQ), peso da carcaÃa fria (PCF), rendimentos de carcaÃa quente (RCQ) e fria (RCF), perda por resfriamento (PR), comprimento interno da carcaÃa (ML) e o Ãndice de compacidade da carcaÃa (ICC). Na carcaÃa fria foram avaliados o rendimento dos seguintes cortes comerciais: pescoÃo, paleta, lombo inteiro, perna, peito, carrÃ, costela e fraldinha. Houve diferenÃa significativa (p<0,05) entre as raÃas e entre os sexos tanto para o peso corporal como para a maioria das medidas realizadas, dos 150 aos 210 dias de idade, sendo que a raÃa Santa InÃs foi superior a raÃa Somalis, e os machos superiores as fÃmeas. Dentre as caracterÃsticas de carcaÃa, a raÃa Somalis apresentou menores mÃdias para PR e ML (p<0,05) do que a Santa InÃs. NÃo houve diferenÃas significativas para as demais caracterÃsticas de carcaÃa, como tambÃm para os rendimentos dos cortes, entre as raÃas avaliadas. A Santa InÃs apresentou maiores pesos, medidas corporais, comprimento interno da carcaÃa e quebra por resfriamento do que a Somalis. Quanto ao rendimento dos cortes comerciais realizados na carcaÃa as raÃas ovinas Santa InÃs e Somalis foram semelhantes entre si.
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Levchenko, D. V., and D. M. Shiyan. "Morphological features of distribution of branches of the ethmoid arteries on from the shape of the orbit." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/55326.
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To study the topography of the lattice of the arteries of the labyrinth and their relationship to the form of the orbit was carried out anthropometric measurements by the method of V. N. Shevkunenko, A. M. Eselevich, T. V. Zolotareva, G. N. Toporov. To determine the shape of the orbit was measured by the following parameters: 1 - the height of the entrance to the eye socket - the distance between the upper and lower walls of the orbit; 2 - entrance width - the distance between the inner and outer walls of the orbit; 3 - the depth - the distance between the inner boundary of the entrance into the orbit to the optic canal.
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Costa, Tatiana Gouveia Pinto. "Avaliação do ganho de peso, desempenho, morfometria e características de carcaça de ovinos das raças Santa Inês e Somalis brasileiro, no Estado do Ceará." reponame:Repositório Institucional da UFC, 2007. http://www.repositorio.ufc.br/handle/riufc/19020.
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COSTA, Tatiana Gouveia Pinto. Avaliação do ganho de peso, desempenho, morfometria e características de carcaça de ovinos das raças Santa Inês e Somalis brasileiro, no Estado do Ceará. 2007. xiii, 45 f. : Dissertação (Mestrado) - Universidade Federal do Ceará, Centro de Ciências, Departamento de Zootecnia, Programa de Pós-Graduação em Zootecnia. Fortaleza-CE, 2007.Submitted by Eric Santiago (erichhcl@gmail.com) on 2016-08-09T15:15:24Z No. of bitstreams: 1 2007_dis_tgpcosta.pdf: 433028 bytes, checksum: acc2f127c4993cc615ee5da64b171ffd (MD5)
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The objective present work was to evaluate the weight earnings, the morfometric and the characteristics of carcass of two genotype of lambs fedlot hair, Santa Ines and Somalis. Two experiments were accomplished: I - for weight earnings and morfometric of males and females, in confinement, and II - for evaluation of the characteristics of carcass of the males. In the experiment I, 10 males and 10 females of the race Santa Ines, and 10 males and 06 females of the race Somalis, were used, in a completely randomized design, in factorial outline 2x2 (two races and two sexes), which totaled four treatments. The adopted alimentary handling was the supply of pricked grass-elephant and concentrated (400g/head/day), distributed in the morning and in the afternoon. The experimental period had duration of 60 days, where every fifteen days the animals were heavy and accomplished the following weight measures: withers height (HW), crop height (CH),thorax height (TH), length of the body (LB), thoracic perimeter (TP), width of the thorax (WT), width of the croup (WC), croup length (CL), ileum width (IW) and width isqueum (IW). In the experiment II, a completely randomized design, where nine males Santa Ines and six Somalis were abated when they reached an average of 28 kg of alive weight. The appraised characteristics were, the alive discount weight (DW), hot carcass weigh (HCW), cold carcass weigh (CCW), hot carcass revenues (HCR) and cold (CCR), cooling loss (CL), internal length of the carcass (CLI) and the index of compactness of the carcass (ICC). In the cold carcass they were appraised the revenue of the following commercial cuts: neck, palette, whole loin, leg, chest, rack, rib and flank. There was significant difference (P<0.05) among the races and enter the sexes so much for the corporal weight as for most of the accomplished measures, of the 150 to the 210 days of age, and the race Santa Ines was superior the race Somalis, and the superior males the females. Among the carcass characteristics, the race Somalis presented smaller averages for PR and ML (P<0.05) than Santa Ines. There were not significant differences for the other carcass characteristics, as well as for the revenues of the cuts, among the appraised races. Santa Ines presented larger weights, weight measures, internal length of the carcass and it breaks for cooling than Somalis. With relationship to the revenue of the commercial cuts accomplished in the carcass the races sheeps Santa Ines and Somalis they were similar to each other
O objetivo presente trabalho foi avaliar o ganho de peso, a morfometria e as características de carcaça de dois genótipos de ovinos deslanados, Santa Inês e Somalis. Foram realizados dois experimentos: I – para ganho de peso e morfometria de machos e fêmeas, em confinamento, e II – para avaliação das características de carcaça dos machos. No experimento I, foram utilizados 10 machos e 10 fêmeas da raça Santa Inês, e 10 machos e 06 fêmeas da raça Somalis Brasileiros, em um delineamento inteiramente casualizado, em esquema fatorial 2x2 (duas raças e dois sexos), o qual totalizou quatro tratamentos. O manejo alimentar adotado foi o fornecimento de capim-elefante picado e concentrado (400g/ cabeça/dia), distribuídos pela manhã e à tarde. O período experimental teve duração de 60 dias, onde a cada quinze dias os animais foram pesados e realizadas as seguintes medidas corporais: altura da cernelha (ACE), altura da garupa (AGA), altura do tórax (ATO), comprimento do corpo (CCO), perímetro torácico (PTO), largura do tórax (LTO), largura da garupa (LGA), comprimento da garupa (CGA), largura do ílio (LIL) e largura do ísquio (LIS). No experimento II, foi utilizado um delineamento inteiramente casualizado, onde nove machos Santa Inês e seis Somalis foram abatidos quando atingiram uma média de 28 kg de peso vivo. As características avaliadas foram, o peso vivo ao abate (PVA), peso da carcaça quente (PCQ), peso da carcaça fria (PCF), rendimentos de carcaça quente (RCQ) e fria (RCF), perda por resfriamento (PR), comprimento interno da carcaça (ML) e o índice de compacidade da carcaça (ICC). Na carcaça fria foram avaliados o rendimento dos seguintes cortes comerciais: pescoço, paleta, lombo inteiro, perna, peito, carré, costela e fraldinha. Houve diferença significativa (p<0,05) entre as raças e entre os sexos tanto para o peso corporal como para a maioria das medidas realizadas, dos 150 aos 210 dias de idade, sendo que a raça Santa Inês foi superior a raça Somalis, e os machos superiores as fêmeas. Dentre as características de carcaça, a raça Somalis apresentou menores médias para PR e ML (p<0,05) do que a Santa Inês. Não houve diferenças significativas para as demais características de carcaça, como também para os rendimentos dos cortes, entre as raças avaliadas. A Santa Inês apresentou maiores pesos, medidas corporais, comprimento interno da carcaça e quebra por resfriamento do que a Somalis. Quanto ao rendimento dos cortes comerciais realizados na carcaça as raças ovinas Santa Inês e Somalis foram semelhantes entre si.
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Руденко, Наталія Володимирівна, Наталия Владимировна Руденко, Nataliia Volodymyrivna Rudenko, Y. S. Yanenko, and A. V. Pertenko. "The morphological characteristics of old English from the perspective of lingvosynergetic analysis." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/47219.
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In the modern approach to study of language scientists ever more
often use synergistic method, which is based on study of the organization
and self-organization of processes in systems of various levels of
complexity. As language is the most vivid example of a complex system, we have, in general, the right to discourse about the extrapolation of area of
linguistic studies and the communication component of a language onto a
plane of synergetic methodology.
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Anastácio, Jorge Rosário. "Contributo para o estudo do medronheiro (Arbutus unedo L.): caracterização morfológica de clones e fisiologia pós-colheita do fruto." Master's thesis, ISA, 2014. http://hdl.handle.net/10400.5/7069.
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Mestrado em Engenharia Agronómica - Instituto Superior de AgronomiaThis study had two objectives that aim to contribute to a greater knowledge of Arbutus unedo. The first objective was to characterize morphologically different clones installed in a commercial orchard in Oleiros, Castelo Branco, in order to detect the morphological differences between them, as well as to monitor the vegetative cycle. The second objective was to study the physiological behavior of the fruit in the post-harvest period, in order to better assess the evolution of the maturation. The clones showed significant differences in the cross sectional area of the trunk and in the canopy height. Leaves showed significant differences in the length (L), width (W), L/W ratio, petiole length and leaf thickness. The percentage of trees with fruits, the average number of inflorescences and the number of fruits and shoots per inflorescence were significantly different. Fruits at different stages of maturity showed significant differences in firmness, L, hue and saturation. Except for the green fruits, all states of maturation showed an increase in the soluble solids content and pH while titratable acidity decreased. It was not found a marked evolution of vitamin C and total phenolic contents in the postharvest period. Considering the above, as well as the rate of respiration and ethylene production rate of the fruits, we suggest that although it is not a typical climacteric fruit, its postharvest behavior is closer to the climacteric fruits than of the nonclimateric fruits.
Este trabalho teve o Apoio da Fundação para a Ciência e Tecnologia através do Projecto PTDC/AGR-FOR/3746/2012 – “Arbutus unedo plants and products quality improvement for the agro-forestry sector” e do Programa de Desenvolvimento Rural - PRODER, medida 4.1, Cooperação para a Inovação, Ref.ª 43748 – “O Medronho - Conversão da planta silvestre numa espécie fruteira rentável”.
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TERAGUCHI, Hiroshi. "Study on Hydraulic and Morphological Characteristics of River Channel with Groin Structures." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/151951.
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Fatona, Oluwatoyin Fadeke. "Analysis of morphological and blood flow characteristics of the human thoracic aorta." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/58352.
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The human aorta is often affected by many cardiovascular diseases, including atherosclerosis, aneurysm and dissection. There is considerable evidence suggesting that these diseases are associated with the morphology and haemodynamic functions of the aorta, but not all these parameters can be measured directly in vivo. In particular, the helical flow characteristics and haemodynamic wall parameters can only be evaluated from quantitative information on a flow field resolved both in space and time. This study provides a comprehensive analysis of geometric and haemodynamic characteristics of the human aorta through subject-specific simulations of blood flow based on medical images. Computational fluid dynamics (CFD) models of the thoracic aorta were developed based on in vivo anatomical and flow data acquired using magnetic resonance imaging (MRI). In order to capture potential transitional and turbulent flow in the aorta, the correlation based shear stress transporttransitional (SST-Trans) turbulence model was employed. Detailed flow analyses were performed on multiple cases of normal thoracic aortas with a tricuspid aortic valve (TAV) and abnormal aorta with a bicuspid aortic valve (BAV). Results obtained from this study gave quantitative insights into the flow distributions and wall shear stress (WSS) patterns in normal and abnormal aortas. Morphological features and flow patterns of the TAV and BAV aortas were compared. In addition to standard flow parameters, specific indices were evaluated to allow for direct comparisons between the two groups; these included flow reversal ratio (FRR), helicity flow index (HFI) and shear range index (SRI). The results showed that all examined aortas tapered from the proximal ascending segment to the distal descending segment, with the BAV aorta showing a more distinct tapering. Although flow patterns were qualitatively similar in the TAV and BAV aortas, there were substantial quantitative variations. Highly disturbed flow was observed in all examined aortas during part of the cycle, mostly in the systolic deceleration phase. Predicted WSS was higher in the TAV aorta than in the BAV aorta, with the highest WSS occurring in regions around the major arch branches. Comparisons between the predicted and measured velocities showed a good agreement, demonstrating that MR image-based CFD modelling methodology can be used to obtain reliable haemodynamic parameters that are important in clinical assessment and management of aortic diseases.
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Griffin, John David. "Cellular mechanisms and morphological characteristics of hypothalamic thermosensitive and temperature insensitive neurons /." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487844948077911.
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Liu, Yufeng. "Effects of Coarse Aggregate Morphological Characteristics on Mechanical Performance of Stone Matrix Asphalt." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/78451.
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This research focused on three main objectives: (1) quantify coarse aggregate morphological characteristics using an improved FTI (Fourier Transform Interferometry) image analysis system, (2) evaluate the effects of morphological characteristics of coarse aggregates of various mineral compositions on the mechanical performances of stone matrix asphalt (SMA) mixtures constituted; (3) investigate the relationship between the uncompacted void content of coarse aggregates and morphological characteristics. To achieve the first research objective, a Fourier Transform Interferometry (FTI) system was adopted to capture three-dimensional high-resolution images of aggregates. Based on these digital images, the FTI system uses the two-dimensional Fast Fourier Transform (FFT2) method to rapidly measure aggregate morphological characteristics, including sphericity, flatness ratio, elongation ratio, angularity, and surface texture. The computed shape characteristics of all aggregates were in good agreement with manual measurement results, demonstrating the accuracy and reliability of this image analysis system. For the second objective, a series of simple performance laboratory tests were performed on eight types of SMA mixtures with different morphological characteristics. Test included wheel-track loading, dynamic modulus, flow number, and beam fatigue. The wheel tracking test included asphalt pavement analyzer (APA) and Model mobile load simulator (MMLS). In the APA test, samples included eight types of SMA mixtures that consisted of aggregates of 22 fractions. In the MMLS test, six types of SMA mixture samples that consist of coarse aggregate of 15 fractions were tested. Regression analyses were then conducted between weighted mean morphological characteristics and performance parameters. The fatigue performance parameters include |E*|sin φ, where |E*| is complex modulus obtained from dynamic modulus test, the number of loading cycles to failure, and the seismic modulus difference. The rutting performance parameters include |E*|/sin φ, flow number, flow number slope, rut depth and creep slope. For the third objective, different coarse aggregate fractions from different quarries in Virginia were analyzed using the improved FTI system. Regression analyses were performed to investigate the correlation between morphological characteristics and uncompacted void content of coarse aggregates at the size ranges of 4.75-9.5mm and 9.5-12.5 mm, respectively. Aggregate morphological characteristics were found to play an important role in the mechanical performance of stone matrix asphalt mixture and the uncompacted air void content of the coarse aggregates. Both the experimental results and simulation results demonstrated that using more of equi-dimensional, less flaky and elongated coarse aggregates with angular and rougher-textured aggregates is favorable to the mechanical performances of SMA mixtures. Recommended values for each morphological characteristic are provided.Ph. D.
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Pierce, Christina M. "Morphological and color characteristics of active galactic nucleus host galaxies at Z~ 1/." Diss., Digital Dissertations Database. Restricted to UC campuses, 2009. http://uclibs.org/PID/11984.
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Myburgh, S. J. (Susanna Johanna). "Morphological and physiological characteristics for the evaluation of claw quality in Bonsmara cattle." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/46074.
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The functional efficiency of beef cattle including sound claws are essential given that it has a marked influence on functional longevity and subsequent performance. The aim of this study was firstly to analyse Bonsmara inspection data to determine the extent of claw problems in the breed. Secondly, the evaluation of morphological and physiological claw characteristics with specific reference to major bioregions. Inspection data analyses indicated that 2.84% of Bonsmara cattle exhibited claw problems at inspection over a period of 11 years. Logistic regression models on a subset of inspection data revealed a significant influence (P <0.05) of sex and bioregion on claw problems with the sire effect insignificant. Breeder had the most significant effect on claw problems implying stricter selection policies of certain breeders with regard to claws as well as possible differences in management practices. Normal claws of 89 Bonsmara stud animals were collected from the three main bioregions where Bonsmara cattle are farmed (Mesic Highveld Grassland (Gm), Eastern Kalahari Bushveld (SVk) and Central Bushveld (SVcb) bioregions). The majority of the claws obtained were from Bonsmara bulls slaughtered after phase D testing with a few claws from older cows. Lateral toe length (LL), medial toe length (ML), claw circumference, colour coding and tensile strength (TS) were determined on fore and hind claws and mineral composition only on fore claws. Multiway ANOVA models indicated that bioregion, moisture content, calcium (Ca), selenium (Se) and claw position (fore versus hind) had a significant effect (P <0.05) on tensile strength. Bioregion, AgeSex and ForeHind effects were significant (P <0.05) with regards to the respective morphological measurements (LL, ML and claw circumference). The research serves as a benchmark for claw traits in the Bonsmara breed and will assist in future studies.Dissertation (MScAgric)--University of Pretoria, 2014.
tm2015
Animal and Wildlife Sciences
MScAgric
Unrestricted
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Kozionova, A. A. "Morphological characteristics of the skin of experimental animals after the introduction of hyaluronic acid." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/55152.
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Relevance: the study of morphological changes in the skin under the action of solutions of hyaluronic acid of various concentrations gives an opportunity to assess the feasibility of using hyaluronic acid as a vehicle for revitalization of the skin.
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Pathak, Sangeeta. "Morphological and histological placental characteristics in relation to pregnancy outcome in an unselected population." Thesis, University of East Anglia, 2010. https://ueaeprints.uea.ac.uk/33348/.
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Grobler, Liesl Anne. "The morphological and molecular characteristics of skeletal muscle in athletes with acquired training intolerance." Doctoral thesis, University of Cape Town, 2003. http://hdl.handle.net/11427/3238.
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Bibliography: leaves 272-358.The hypothesis, upon which this thesis is based, is that repeated bouts of damage-inducing, prolonged, endurance training and racing, over a number of years, may exceed the biological limits of the repair and adaptation process, resulting in maladaptation of the skeletal muscle and malfunctioning of the system.
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Marsh, Donald. "Changes in Psychological, Morphological, and Performance Characteristics in Preparation for a National Weightlifting Competition." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etd/3642.
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The primary aim of this study was to examine the time course of change in muscle morphology and vertical jump performance in weightlifters preparing for a national competition. The secondary aim of this study is to examine how perceived recovery and stress state corresponds with alterations in training load leading up to competition. Eleven Olympic Training Site weightlifters completed a 4-week peaking phase for a national competition. Body mass, stress and recovery psychometric measures, and unloaded/loaded (20kg) squat jump height (SJH) were measured weekly and at the competition site. Vastus lateralis cross-sectional area (CSA), muscle thickness (MT) and pennation angle (PA) ultrasound measurements were taken prior to and following the training protocol. In competition, 6 athletes set a personal best in snatch, clean and jerk and/or total. These results suggest that improvements in the loaded SJ and psychometric measures correspond to successful competition performance in some weightlifters. Notably, most weightlifters appeared to be peaked within 3 days of competition.
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Wentzel, Melissa. "The relationship between fitness, morphological characteristics, skills and performance in men's fast pitch softball." Thesis, University of the Western Cape, 2012. http://hdl.handle.net/11394/5127.
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Magister Legum - LLMAn understanding of the structure, function and performance relationships in different sports, including softball, allows for improved coaching approaches, development of sport specific fitness and skills training programmes, team selections and talent identification in young players. Despite the fact that fast pitch softball is an established sport with a long history, it has received little scientific attention. It does for example, not have a specific battery of softball specific fitness tests and relies on the tests and norms of baseball. The specific morphological and fitness demands of the sport are therefore not fully understood. The purpose of this study was to establish whether morphological and fitness characteristics are related to skill and performance measures in men's fast pitch softball players and to determine what the strengths of any such relationships are. The sample was purposively selected and consisted of 15 Provincial and 15 club male fast pitch softball players. All participants were members of the provincial Softball Federation. Anthropometric, fitness and skills test and measurements were conducted at the training sites over a number of weeks because it coincided with team training. Anthropometric measurements included height, weight, skinfolds, and were done in accordance with ISAK specifications. Derived anthropometric variables included BMI and body fat percentage. The following physical fitness tests were conducted: vertical jump test, standing broad jump and the Illinois agility run while the skills tests conducted were the softball throw for distance, the two base sprint test, the batting tests and the fielding test. Match statistics were easier to obtain since records were available in printed form from the Provincial softball federation for the Provincial players and from the club for its members. The data obtained were analysed and interpreted both collectively as a group of thirty and then separately as provincial and club teams for the purpose of comparison. Since the data were not normally distributed, the Spearman's rank Correlation was used to test for associations between variables. Comparisons of the squads were done using the nonparametric Wilcoxon Rank Sum test. The results of the study identified a number of strong significant relationships between the different variables tested. Height and percent body fat, amongst others were found to be the two anthropometric variables which significantly interacted with two key performance areas of fast pitch softball i.e. batting and fielding. Percent body fat also negatively correlated with the vertical jump test which highlights the general negative impact of excess fat on performance. The relationships established in this research strongly suggest that coaches include fitness, morphological and skills tests in their coaching and fitness programmes and they should further be used in team selections processes as they are strong indicators for success and will make the selection process more objective.
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İşcanlı, Sinecan Yılmaz Saygın Nicel. "The morphological and the urban characteristics of the monumental building complexes in ottoman capitals/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/sehirplanlama/T000296.rar.
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Immegart, Heidi Marie. "Equine spermatozoal motility and morphologic characteristics: Assessment techniques and inter-relationships /." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu148793595884756.
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Butler, Shannon Catherine. "Early diet modifies small intestinal morphological characteristics and IgA-bearing cells in the BB rat." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ40032.pdf.
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Halhouli, Mohammad [Verfasser], and Gerald A. [Akademischer Betreuer] Urban. "Study and optimization of the morphological characteristics of nanostructures for heterogeneous catalysis applications : : theoretical study." Freiburg : Universität, 2017. http://d-nb.info/1134881851/34.
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Semeniuk, T. A. "Endothelium of the heart ventricles in human: its morphological characteristics and methods of its investigation." Thesis, БДМУ, 2022. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/19355.
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Muktadir, Md Abdul. "Understanding morphological, physiological and biochemical characteristics of faba bean (Vicia faba L.) under drought condition." Thesis, The University of Sydney, 2019. http://hdl.handle.net/2123/20656.
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Drought stress is one of the most important limiting factors for the sustainable production of faba bean (Vicia faba L). This study covered the characterization of physiological, biochemical and morphological traits that are enhancing the drought tolerance of faba bean by assessing key traits under the field and controlled environments. The investigations utilised a range of plant tissues, i.e. leaf, flower, root and grain tissue’s response under water deficit (WD) conditions. Carbon isotope discrimination was found as a suitable trait as well as predict grain yield. Large genotypic variation (16.84‰ ~ 21.96‰) among genotypes made it a potential selection tool for breeding programs. Among yield contributing characters, plant height and 100 seed weight were the most important contributors (0.60**). Hydroponic assay showed great promise and results from hydroponic assays were confirmed through a subsequent sand culture study and suggested as an effective screening platform as genotypes had a similar response under both conditions. Leaf chemistry of faba bean genotypes showed the presence of increased myo-inositol and sucrose in irrigated treatments. Comparison of water use efficiency prediction through leaf-level carbon isotope abundance and gas exchange suggested the former would be a suitable tool as a drought tolerance screening tool. The relatively small differences in carbon isotope abundance between leaf and grain suggest that either tissue are appropriate for inclusion in breeding programs. Pod formation during stress was primarily governed by the pistil. Reciprocal crosses between WD and well-watered (WW) plants showed pistil were more sensitive to drought than stamen. Finally, the grain quality of faba bean tends to be resilient and not affected by WD. Quantification of essential amino acids and major mineral nutrients in grains collected from WW and WD plants that showed no significant effect between treatments.
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Zolfaghari, Mohammad Esmail. "The morphological, flow and failure characteristics of fractionated natural bulk material : evaluation of flowability of fractionated powdered liquorice using a specially designed flowmeter : the particle morphology was assessed by computer image analysis and the failure properties by shear cell testing." Thesis, University of Bradford, 1986. http://hdl.handle.net/10454/4353.
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With the technological development in biologically orientated industries more and more natural products in powdered form are being handled and processed. Three differently comminuted liquorice rhizome products were classified into 23 narrow size fractions to investigate the particle and bulk characteristics of the material, and to study the influence of particle shape on powder flowability. The morphology of the fibrous particulate was investigated by using a Quantimet 720 Image Analyser. The perimeter (P), projected area (A), breadth (B), length (L), horizontal and vertical projected lengths (P V and Pi) and the horizontal and vertical Feret diameters (FV FH) were measured from which four dimensionless shape factors were evaluated, [P2/47rA, PHxPV/A, L/B, FV/FH]. The surface texture of the particles was measured by fractal analysis. The influence of particle shape and size on the mean flow rate, coefficient of flow variation and flow uniformity were measured using a specially designed inclined tube flowmeter. The failure properties of powdered liquorice when sheared under known normal compressive stresses were measured and from a series of yield loci the unconfined yield strength, major consolidation stress and effective angle of internal friction were obtained. The effects of particle shape and size on the angle of internal friction, wall friction, bulk and packed densities were. investigated and the experimental correlations expressed in terms of mathematical equations. These relationships, together with the failure function plots, indicate that comminuted liquorice powder behaves as a "simple" powder.
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Silva, Sandra da Conceição Liz da. "Caracterização de fungos do género Stemphylium associados a pomóideas em Portugal." Master's thesis, ISA/UTL, 2011. http://hdl.handle.net/10400.5/4485.
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Mestrado em Engenharia Agronómica - Instituto Superior de AgronomiaBrown spot of pear, associated to Pleospora allii/Stemphylium vesicarium, is economically important in pear production in Europe and was detected, in 1996, in Portugal. The causal agent is known to share similar morphological characteristics with other fungi in the genus, namely S. botryosum known as a storage fungus, making the identification between them quite difficult. With the aim to contribute for a better knowledge of brown spot in pears, the pathogens involved in this disease and its presence in other fruit trees, we studied, from 30 Stemphylium monosporics isolates obtained from apples and pear fruits, and pears leaves, from Portugal, the optimal grow temperature, cultural, morphologic and biometric characteristics from anamorphs and/or teleomorphs, the time required for ascospore prodution and phylogenetic relationships, inferred from ITS and gpd sequence data. The optimum growth temperature stood between 22.5º C and 27.5º C, the ratio between length and width ranged from 1.38 to 2.38. The number of days until mature ascospores were produced ranged between 10 and 54 days. The gpd fragments of 28 isolates clustered with S. vesicarium from NCBI bank and the whole data allowed to identify 29 isolates as S. vesicarium
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Davenport, Burke W. "Cattle Utilization of Forage Kochia (Kochia prostrata) and Its Relation to Forage Quality and Plant Morphological Characteristics." DigitalCommons@USU, 2005. https://digitalcommons.usu.edu/etd/6608.
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Several experimental lines of forage kochia [Kochia prostrata (L. Shrad.)] have potential to provide taller forage on fall and winter rangelands than the only released variety of forage kochia, Immigrant. This study was conducted to determine differences in cattle utilization among experimental lines of forage kochia and relate them to forage quality and morphological attributes. The utilization of forage kochia was also compared to 'Ladak ' alfalfa [Medicago saliva (L.)] and two entries of winterfat [Krashnennikovia species (Guldenstaedt)]. Cattle utilization was determined by calculating a biomass consumed value and a percent biomass consumed value. Dry weights for each plant were taken after grazing and subtracted from a pre-grazing dry weight (predicted using a quadratic regression equation) that produced the biomass consumed value. The percent consumed value was calculated by dividing biomass consumed by pre-grazing dry weight. Ocularly estimated utilization scores (OU) were also used to measure utilization. Forage quality traits were analyzed on each entry using near infrared reflectance spectroscopy. Morphologic and phenological characteristics potentially related to utilization were made by physical measurements and visual evaluations. There were significant differences among forage kochia accessions for all traits evaluated. Four entries, including Immigrant and Ladak alfalfa, were significantly higher in percent herbage consumed than the other entries . These same entries were consistently high in OU ratings , forage quality analyses , and most morphological characteristics. Pre-grazing dry weight (r = -0.96 , P < 0.0001) , stem length (r = 0.67, P < 0.0001), and branch density (r = 0.63, P < 0.0001) were all highly correlated with utilization. Crude protein (partial R2 = 0.253 , P ≤ 0.0001) was the only forage quality trait associated with utilization using a stepwise regression to predict utilization. From this study we conclude that some forage kochia accessions are very palatable. They are comparable to Ladak alfalfa, and utilized more than Krashnikova spp., a desirable forage on western rangelands.
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Newbrey, Michael G. "Morphologic and meristic characteristics of lacustrine coarse woody structure as fish habitat /." Link to Abstract, 2002. http://epapers.uwsp.edu/abstracts/2002/Newbrey,M.pdf.
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Brutsche, Katherine. "First Year Sedimentological Characteristics and Morphological Evolution of an Artificial Berm at Fort Myers Beach, Florida." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3019.
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Dredging is often conducted to maintain authorized depths in coastal navigation channels. Placement of dredged sediment in the form of nearshore berms is becoming an increasingly popular option for disposal. Compared to direct beach placement, nearshore berms have fewer environmental impacts such as shore birds and turtle nesting, and have more lenient sediment compatibility restrictions. Understanding the potential morphological and sedimentological evolution is crucial to the design of a nearshore berm. Furthermore, the artificial perturbation generated by the berm installation provides a unique opportunity to understand the equilibrium process of coastal morphodynamics.
Matanzas Pass and Bowditch Point, located on the northern tip of Estero Island in west-central Florida were dredged in October 2009. The dredged material was placed approximately 600 ft offshore of Fort Myers Beach and 1.5 miles southeast of Matanzas Pass, in the form of an artificial berm. Time-series surveys and sediment sampling were conducted semi-annually in order to quantify sedimentological characteristics and morphological changes within the first year after construction of the berm.
The artificial berm at Fort Myers Beach is composed mainly of fine sand. Patches of mud were found throughout the study area, with the highest concentrations being in the trough landward of the berm, and offshore southeast of the berm area. The highest concentration of carbonates was found in the swash zone, as well as at the landward toe of the berm, which coincides with the coarsest sediment. The overall mud content of the berm is lower than that of the dredged sediment, thus indicating a coarsening of the berm over time. The reduction in fines as compared to the original dredged sedimet could also indicate a selective transport mechanism that moves finer material offshore, and coarser material landward, a desirable trend for artificial berm nourishment.
During the course of the first year, the berm migrated landward and increased in elevation. Onshore migration occurred mostly within the first 6 months. Along with onshore migration, the shape of the berm changed from a symmetrical bell curve to an asymmetrical shape with a steep landward slope. There is no clear spatial trend of volume change alongshore within the berm area, indicating that sediment transport is mostly cross-shore dominated. A salient was formed landward of the northern portion of the berm. Several gaps were created during berm construction due to dredging and placement techniques. These dynamic gaps are likely maintained by rip currents through them. This study showed that the Fort Myers Beach berm is active, due to its landward migration during the first year after construction.
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He, J. "A study of the morphological characteristics of rat ovarian granulosa cells during maturation of the oocyte." Thesis, Queen's University Belfast, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239005.
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Jonker, V. (Verno). "Environmentally significant morphological and hydraulic characteristics of cobble and boulder bed rivers in the Western Cape." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52826.
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Thesis (PhDEng)--University of Stellenbosch, 2002.ENGLISH ABSTRACT: The interaction between moving water and the physical attributes of a river, as displayed by the channel morphology, determines the availability of physical habitat for aquatic species and thus also the condition of the ecosystem. As such, the environmental flow assessment process requires knowledge on how changes in the flow regime will affect both the morphological and hydraulic conditions within a river channel. With the increasing development of water-related infrastructure in mountain regions, knowledge of the morphological and hydraulic characteristics of rivers in the upper catchment areas is very important. Cobble and boulder bed rivers in the Western Cape are typical examples. They are characterized by steep gradients, great variability in sediment size and relatively low flow depths. The bed configuration contains a series of pools, steps, rapids, riffles and plane beds, while energy losses are high as a result of turbulence and hydraulic jumps. Due to their wideranging morphological and associated hydraulic attributes, the physical habitats within these rivers are extremely diverse, both on a spatial and temporal scale. This study addresses the interaction between moving water and the physical attributes of cobble and boulder bed rivers. Empirical, semi-empirical and theoretically based models are developed which define the hydraulic and morphological related characteristics of environmental flow components in cobble and boulder bed rivers. They cover macro scale channel deformation, the scouring of sand from the interstitial spaces between the cobbles as well as velocity-depth relationships, which prove to be key components in the assessment of environmental flow requirements in cobble and boulder bed rivers.
AFRIKAANSE OPSOMMING: Die wisselwerking tussen die vloeiende water en die fisiese eienskappe van 'n rivier, soos beskryf deur die morfologie, bepaal die beskikbaarheid van habitat vir akwatiese spesies en gevolglik ook die welstand van die ekosisteem. Kennis omtrent die impak van 'n veranderde vloei regime op beide die morfologiese en die hidrouliese toestande in 'n rivierloop is dus nodig vir die bepaling van omgewingsvloeibehoeftes. Met die toenemende ontwikkeling van water-verwante infrastruktuur in bergagtige gebiede is 'n grondige kennis van die morfologiese en hidrouliese eienskappe van riviere in hierdie bo-opvanggebiede gebiededend noodsaaklik. Spoelklip riviere in die Wes-Kaap is tipiese voorbeelde van sulke riviere. Hierdie riviere word gekenmerk deur steil hellings, 'n wye verskeidenheid sedimentgroottes, relatiewe lae vloeidieptes en hoë energieverliese as gevolg van turbulensie. Verder bevat die ri vierbed afwisselend poele en stroomversnellings en gevolglik word 'n wye verskeidenheid habitat tipes in hierdie riviere aangetref. Hierdie studie fokus op die interaksie tussen bewegende water en die fisiese eienskappe van spoelklip riviere. Met behulp van empiriese, semi-empiriese en teoretiese modelle word die morfologiese en hidrouliese eienskappe van omgewingsvloeibehoeftes in spoelklip riviere aangespreek. Dit sluit makroskaal kanaal vervorming, die uitskuur van sand tusen die spoelklippe asook die verwantskap tussen vloeisnelheid en vloeidiepte in. Hierdie aspekte kan beskou word as van die sleutel elemente vir die bepaling van omgewingsvloeibehoeftes in spoelklip riviere.
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Delong, Brittany E. "Morphological and Physiological Characteristics that Contribute to Insecticide Resistance in Bed Bug (Cimex lectularius L.) Eggs." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/64404.
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Although bed bug eggs are a difficult life stage to control with our currently labeled insecticides, few studies have examined how bed bug egg morphology and physiology is potentially related to pesticide resistance in bed bug eggs. Bed bug egg morphological features were examined using scanning electron microscopy (SEM) and the chorion and respiration structures were identified. Scanning electron microscopy photographs and bed bug egg measurements indicated there were no morphological differences between different bed bug egg strains (susceptible and resistant). Bed bug egg respiration rates measured by the amount of oxygen consumed (standard metabolic rate; SMR) also indicated there was no difference in SMR between different bed bug egg strains. Water conservation during respiration is vital to terrestrial insects. Therefore, similar patterns would be expected between egg water loss and respiration rates. However, susceptible strain eggs lost more water than one resistant strain of bed bug eggs, which was dissimilar from the respiration results, indicating that bed bug egg water loss and respiration are not directly related. Dose- response bioassays using two insecticide formulations (Temprid; imidacloprid/β-cyfluthrin, and Transport; acetamiprid/bifenthrin) indicated that bed bug eggs collected from pyrethroid resistant adult bed bug strains are also highly resistant. RNA sequencing of bed bug eggs from two resistant strains indicated that egg resistance may be directly related to the overexpression of multiple genes associated with insecticide resistance.Master of Science in Life Sciences
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Vogler, Cheryl Jean. "Effects of elevated testicular temperature on viability of cryopreserved semen and morphological characteristics of ejaculated spermatozoa." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/42217.
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Two successive ejaculates were collected from six mature Holstein bulls at 3 d intervals for 7 wks. Elevated testicular temperature was induced by complete coverage of the scrotum with insulated material for 48 h. Viability (motility and acrosome integrity) and morphological characteristics of sperm before and after thermal insult were examined. For assessment of results, collection days were grouped: days -6, -3, 0 = Period 1 (d 0 = day of testis coverage after semen collection on that day), days 3, 6, 9 = Period 2 , days 12, 15...39 = Period 3. Semen was cryopreserved on each day of collection until morphological abnormalities of sperm increased to >50%. Semen viability before and after freezing was lower in Period 3 than in Period 1 (P≤.01). These differences coincided with increased abnormal morphology. No differences in viability were observed between Period 1 and Period 2 for unfrozen semen. Once frozen, spermatozoa ejaculated during Period 2 were significantly different from Period 1 for both viability measurements, but only after 3 h incubation at 37°C (P≤.01). Mean percent pre-insult abnormal sperm level was 19.6 ± 5.7 and sperm morphology in Period 1 (pre-insult) did not differ from that in Period 2. Morphological change was first noted in Period 3 on d 12 and 15 (47.5 ± 27.4 and 65.0 ± 27.0 % abnormal sperm, respectively). Abnormal sperm peaked on d 21 (83.2 ± 22.8 %). Although bulls varied in degree and time of response post-insult, all bulls exhibited the same sequence of appearance for specific abnormalities. The sequence and peak means for these abnormalities observed over all bulls were as follows: decapitated sperm, d 15 (33.9 ± 28.8 %); diadem defect, d 18 (55.6 ± 25.8 %); pyriform heads and nuclear vacuoles (excluding diadems), d 21 (18.3 ± 17.6 and 20.8 ± 10.5 %, respectively); knobbed acrosomes, d 27 (11.6 ± 13.6 % ). Sperm morphology was followed through d 39, by which time all bulls were producing ≤50% abnormal cells (35.2 ± 8.0 %). We concluded that viability of epididymal/rete sperm was adversely affected by elevated testicular temperatures, as noted by lowered viability of cryopreserved semen, and that there is a sequence in appearance of abnormal cell types in repsponse to thermal insult of the testis.Master of Science
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Singh, Pankaj. "Role of computational fluid dynamics in the analysis of haemodynamic and morphological characteristics of intracranial aneurysms." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/11394/.
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Aneurysmal subarachnoid hemorrhage (SAH) carries a high morbidity and mortality. The current protocols used to treat the unruptured Intracranial Aneurysms (IAs) are inadequate underscoring the need of finding new descriptors. As demonstrated by the studies performed in this manuscript, haemodynamics plays an important role in the aetiopathogenesis of IAs. An evaluation of haemodynamic indices can provide a useful alternative to predict the behavior of an unruptured IA at an early stage. Studies performed by me demonstrate that Computational Fluid Dynamics (CFD) can be used successfully to predict haemodynamic indices where detailed in vivo measurement of haemodynamic flow variables is not possible owing to technical limitations. European Commission funded Project @neurIST was the first project of it’s kind that brought together a number of multidisciplinary professionals from 32 European institutions and made possible development of state-of-the-art tools for personalised risk assessment and treatment IAs using CFD. These tools have been constantly improved and amended in the light of feedback gathered from their controlled exposures conducted world over, as described in the manuscript. However, need of a well-designed Randomized Controlled Trial in this context cannot be overemphasized, before these tools can be accepted by clinicians and patients. In my study on the validation of different concepts used in CFD, I demonstrated that there is no added advantage of complex Womersley-flow-profile over the much simpler plug-flow profile. One of my studies on initiation and rupture of IAs showed that the haemodynamic patterns of IAs during these two phases are significantly different with values of supra-physiological Wall Shear Stress (WSS) being higher in initiation while lower in rupture phase. I also investigated the effects of pharmacological agents on the aetiopathogenesis of IAs and found that heparin induces significant derangements in the haemodynamics of both, pre-aneurysmal as well as ruptured IA. I propose that heparin (and its derivatives) can, on the one hand may facilitate the rupture of existing IAs, on the other hand they may suppress the formation of new IAs. I have also found significant differences in the results using patient-specific vs. Modeled Boundary Conditions and showed that the 1D circulation model adopted by @neurIST performs better than other approaches found in the literature. I also proposed a novel mechanism of increase in Blood Viscosity leading to high WSS as one of the important underlying mechanisms responsible for the increased incidence of IA formation in smokers and hypertensive patients. In my study on patients with pre-existing Coarctation of Aorta (CoA) and Intracranial Aneurysms, I demonstrated that the cerebral flow-rates in CoA patients were significantly higher when compared to average flow-rates in healthy population. It was also seen that the values and the area affected by supraphysiological WSS (>15Pa) were exponentially higher in patients with CoA indicating the possible role of increased haemodynamic WSS secondary to the increased flow-rates playing an important role in the pathogenesis and rupture of IAs in CoA patients.
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Abdel-Fatah, Tarek Mohamed A. "The morphological, biological and genetic characteristics of low nuclear grade breast carcinoma and their putative precursor lesions." Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/30458/.
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There is evidence to suggest that some special types of breast cancer including tubular and lobular carcinoma and their putative precursor lesions including atypical ductal hyperplasia (ADH), low grade ductal carcinoma in-situ (DOS) and lobular neoplasia (LN) may consist in a family of interrelated lesions. Recently, an attention has been focused on the columnar cell lesion as an early non-obligate precursor lesion of breast cancer. In this study we examined this hypothesis by identifying the morphological and biological characteristics of these lesions. In addition, we used high resolution array comparative genomic hybridization to identify the molecular genetic profiles of invasive lobular and tubular carcinoma and their matched coexisting precursor lesions to investigate their relationship and to provide insight into some of the earliest events leading to invasive breast cancer. Moreover, by validating aspects of our immunohistochemical and in situ hybridization expression data with high throughput tissue microarrays, we identified potential oncogenes and tumour suppressor genes that could potentially drive the progression of BC and have clinicopathological implications on BC. Subsequently, diagnostic, predictive and genetic classifications of breast cancer and their putative precursor lesions were developed. In summary, our results suggest that 1) Tubular and lobular breast carcinoma arise as members of a low nuclear grade breast neoplasia (LNGBN) family, 2) CCLs are early non-obligate precursor components of the LNGBN family, 3) The common cell of origin of the LNGBN family may be the oestrogen receptor-alpha (ER α) positive luminal restricted progenitor cell (ER +/MUC1 + cells) of the terminal duct lobular unit that might acquire stochastic genetic and epigenetic changes that eventually lead to activation of the luminal "A" pathway, 4) Cyclin D1 and MDM4 are oncogenes that potentially lead to activation of the luminal pathway and progression of the LNGBN family, 5) An alteration of E-cadherin (CDH1) appears to be a secondary event resulting in the characteristic morphology of both in situ and invasive lobular lesions, 6) A biological grading system dependent on the balance between Bcl2 protein expression and mitotic figures could accurately reclassify patients with intermediately differentiated, small early stage or ER α negative breast cancers into two groups of low versus high risk of death and recurrence, and 7) The functional status of p53 transcriptional pathways can be assessed using immunohistochemistry protein expression of p53 downstream/regulator genes to accurately discriminate between low and high grade breast carcinoma and to assist routine clinical decision-making.
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King, Christian King. "The impact of surrounding anthropogenic land-use on morphological characteristics and plant diversity in wetlands throughout Ohio." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1543248579203378.
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Dewar, Simon Hilton. "Effect of nutrient limitation on growth characteristics and morphological stability during continuous culture of Fusarium graminearum A3/5." Thesis, University of Manchester, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.738187.
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Corrêa, Maria José Pinheiro [UNESP]. "Eficácia e seletividade de herbicidas aplicados em pós-emergência em soja convencional e transgênica." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/105305.
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correa_mjp_dr_jabo.pdf: 913272 bytes, checksum: 5000bc011ba683f81e165123412cb4d8 (MD5)Uema-Universidade Estadual do Maranhao
O presente estudo teve por objetivo avaliar a eficácia e seletividade de herbicidas aplicados em pós-emergência, isolados e em misturas, para o controle de plantas daninhas e os efeitos sobre o crescimento e o desenvolvimento da soja convencional (M-SOY 8001) e transgênica (M-SOY 7908 RR). Também foram estudados os efeitos dos produtos sobre a atividade fotossintética e nas características morfológicas externas e internas das plantas. Foram conduzidos dois experimentos, no ano agrícola 2006/2007 e repetido em 2007/2008, em condições de campo, na Fazenda de Ensino, Pesquisa e Produção da UNESP, Câmpus de Jaboticabal, SP. O delineamento experimental utilizado foi em blocos ao acaso com quatro repetições. Os tratamentos constaram da aplicação de herbicidas isolados e em misturas: lactofen (168 g ha- 1), glyphosate (1080 g ha-1), lactofen + chlorimuron-ethyl (96 + 10 g ha-1), chlorimuron-ethyl + imazethapyr (10 + 70 g ha-1), chlorimuron-ethyl + bentazon (10 + 600 g ha-1), glyphosate + imazethapyr (900 + 70 g ha-1), lactofen + chlorimuronethyl + imazethapyr (96 + 10 + 70 g ha-1) e lactofen + chlorimuron-ethyl + imazethapyr/haloxyfop-methyl (96 + 10 + 70 / 60 g ha-1). Além disso, foram mantidas duas testemunhas sem aplicação de herbicida (capinada e mantida infestada). Concluiu-se que os herbicidas utilizados foram seletivos para a soja; exceção dos tratamentos com glyphosate na soja M-SOY 8001. Na condição de baixa infestação de plantas daninhas, os herbicidas aplicados foram eficazes no controle destas. Na área com maior infestação de plantas daninhas, a aplicação de glyphosate isolado ou em mistura com imazethapyr proporcionou melhor controle das plantas infestantes. Quanto a eficiência fotossintética máxima, apenas o cultivar convencional foi suscetível à aplicação dos herbicidas, principalmente às misturas contendo lactofen + chlorimuron-ethyl...
This research was carried out to evaluate the efficiency and selectivity postemergence herbicides applied alone and in mixtures to the weed control and the effects on the growth and the development transgenic (M-SOY 7908 RR) and conventional (M-SOY 8001) soybean. The effects of the products on the photosynthetic activity and the external and internal morphologic characteristics of the plants, also it studied. Two experiments were carried out from 2006/2007 and 2007/2008 under field conditions on Education, Research and Production Farm of UNESP in Jaboticabal, SP, Brazil. A randomized complete block experimental design with four replications was used. Herbicide treatments consisted lactofen (168 g ha-1), glyphosate (1080 g ha-1), lactofen + chlorimuronethyl (96 + 10 g ha-1), chlorimuron-ethyl + imazethapyr (10 + 70 g ha-1), chlorimuron-ethyl + bentazon (10 + 600 g ha-1), glyphosate + imazethapyr (900 g + 70 g ha-1), lactofen + chlorimuron-ethyl + imazethapyr (96 + 10 + 70 g ha-1) and lactofen + chlorimuron-ethyl + imazethapyr/haloxyfop-methyl (96 + 10 + 70 + 60 g ha-1). The tests included two nontreated (no hand weeded and hand weeded). The herbicides were selective for the soybean; exception of the treatments glyphosate applied in the M-SOY 8001 soybean. Under low weed condition, the herbicides applied were effective in the weed control. In the area with larger weed condition, glyphosate applied alone and glyphosate plus imazethapyr caused better control the weeds compared other herbicides. With respect to maximum photosynthetic efficiency response, just conventional soybean was susceptible the herbicides applied, mainly the mixtures containing lactofen + chlorimuron-ethyl and lactofen + chlorimuron-ethyl + imazethapyr / haloxifop-methyl. For total chlorophyll response, the varieties presented susceptibility to the lactofen alone and in mixture with chlorimuron-ethyl, imazethapyr... (Complete abstract click electronic access below)
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Beniušis, Linas. "Morfologinių ir greitumo jėgos rodiklių kaita jaunųjų krepšininkų brendimo laikotarpiu." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120614_155024-35053.
Full textAbstract:
Viena iš svarbiausių daugiamečio sportinio rengimo veiksmingumo sąlygų yra tikslingas profesionalus rengimo valdymas: multispektrinis ir daugiamokslinis vyksmas – tikslingas atleto sportinio parengtumo gerinimas, įgyvendinant numatytas pratybų ir varžybų programas
Būtina veiksmingo sportinio rengimo valdymo sąlyga – svarbiausių veiksnių, labiausiai lemiančių jaunųjų krepšininkų sportinį parengtumą ir sportinių rezultatų gerėjimą, geriausių rezultatų siekimą, pažinimas. Tai svarbu todėl, kad krepšininkų žaidimo kokybė, sėkmė svarbiausiose varžybose priklauso nuo daugelio veiksnių.
Deja, pasigendama tyrimų, nagrinėjančių pagrindinių jaunųjų krepšininkų morfologinių ir greitumo jėgos rodiklių priklausomybę, jų įtaką fiziniam jaunųjų krepšininkų parengtumui. Iškyla aktuali mokslinė problema – nustatyti jaunųjų krepšininkų morfologinių ir greitumo jėgos rodiklius, jų kaitą ir tarpusavio ryšį brendimo laikotarpiu.
Tyrimo objektas – jaunųjų krepšininkų morfologiniai ir greitumo jėgos rodikliai, jų kaita ir tarpusavio ryšys.
Tyrimo tikslas – nustatyti ir įvertinti jaunųjų krepšininkų morfologinius ir greitumo jėgos rodiklius, jų kaitą ir tarpusavio ryšį brendimo laikotarpiu.
Tyrimo uždaviniai:
1. Nustatyti ir įvertinti pagrindinius jaunųjų krepšininkų morfologinius rodiklius ir jų kaitą.
2. Nustatyti ir įvertinti greitumo jėgos rodiklius ir jų kaitą.
3. Nustatyti morfologinių ir greitumo jėgos rodiklių tarpusavio ryšį.
Tyrimo metodai
Tyrimo uždaviniams spręsti buvo taikyti tokie... [toliau žr. visą tekstą]One of the most significant conditions for the effective long-term athlete training is a purposeful professional control of training: multispectral and interdisciplinary process focused on the improvement of athletic training by implementing planned programs of training sessions and competitions. An essential condition for effective athletic training is the understanding of the most important factors influencing athletic fitness and increased sport performance in young basketball players. The quality of their play and the success in the main competitions depend on a series of factors. This awareness and the lack of previous studies analysing interdependence between the key morphological characteristics and the indicators of velocity power as well as their influence on physical fitness in young players make this scientific problem to determine morphological characteristics and the indicators of velocity power in young basketball players, their change and correlation during puberty relevant. Object of the study: morphological characteristics and indicators of velocity power in young basketball players, their change and interrelations. Aim of the study is to determine and evaluate morphological characteristics and indicators of velocity power, their change and correlation during the period of puberty. Objectives of the study: 4. To determine and evaluate the main morphological characteristics in young basketball players and their change. 5. To determine and evaluate indicators... [to full text]
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Corrêa, Maria José Pinheiro. "Eficácia e seletividade de herbicidas aplicados em pós-emergência em soja convencional e transgênica /." Jaboticabal : [s.n.], 2009. http://hdl.handle.net/11449/105305.
Full textAbstract:
Resumo: O presente estudo teve por objetivo avaliar a eficácia e seletividade de herbicidas aplicados em pós-emergência, isolados e em misturas, para o controle de plantas daninhas e os efeitos sobre o crescimento e o desenvolvimento da soja convencional (M-SOY 8001) e transgênica (M-SOY 7908 RR). Também foram estudados os efeitos dos produtos sobre a atividade fotossintética e nas características morfológicas externas e internas das plantas. Foram conduzidos dois experimentos, no ano agrícola 2006/2007 e repetido em 2007/2008, em condições de campo, na Fazenda de Ensino, Pesquisa e Produção da UNESP, Câmpus de Jaboticabal, SP. O delineamento experimental utilizado foi em blocos ao acaso com quatro repetições. Os tratamentos constaram da aplicação de herbicidas isolados e em misturas: lactofen (168 g ha- 1), glyphosate (1080 g ha-1), lactofen + chlorimuron-ethyl (96 + 10 g ha-1), chlorimuron-ethyl + imazethapyr (10 + 70 g ha-1), chlorimuron-ethyl + bentazon (10 + 600 g ha-1), glyphosate + imazethapyr (900 + 70 g ha-1), lactofen + chlorimuronethyl + imazethapyr (96 + 10 + 70 g ha-1) e lactofen + chlorimuron-ethyl + imazethapyr/haloxyfop-methyl (96 + 10 + 70 / 60 g ha-1). Além disso, foram mantidas duas testemunhas sem aplicação de herbicida (capinada e mantida infestada). Concluiu-se que os herbicidas utilizados foram seletivos para a soja; exceção dos tratamentos com glyphosate na soja M-SOY 8001. Na condição de baixa infestação de plantas daninhas, os herbicidas aplicados foram eficazes no controle destas. Na área com maior infestação de plantas daninhas, a aplicação de glyphosate isolado ou em mistura com imazethapyr proporcionou melhor controle das plantas infestantes. Quanto a eficiência fotossintética máxima, apenas o cultivar convencional foi suscetível à aplicação dos herbicidas, principalmente às misturas contendo lactofen + chlorimuron-ethyl... (Resumo completo, clicar acesso eletrônico abaixo)Abstract: This research was carried out to evaluate the efficiency and selectivity postemergence herbicides applied alone and in mixtures to the weed control and the effects on the growth and the development transgenic (M-SOY 7908 RR) and conventional (M-SOY 8001) soybean. The effects of the products on the photosynthetic activity and the external and internal morphologic characteristics of the plants, also it studied. Two experiments were carried out from 2006/2007 and 2007/2008 under field conditions on Education, Research and Production Farm of UNESP in Jaboticabal, SP, Brazil. A randomized complete block experimental design with four replications was used. Herbicide treatments consisted lactofen (168 g ha-1), glyphosate (1080 g ha-1), lactofen + chlorimuronethyl (96 + 10 g ha-1), chlorimuron-ethyl + imazethapyr (10 + 70 g ha-1), chlorimuron-ethyl + bentazon (10 + 600 g ha-1), glyphosate + imazethapyr (900 g + 70 g ha-1), lactofen + chlorimuron-ethyl + imazethapyr (96 + 10 + 70 g ha-1) and lactofen + chlorimuron-ethyl + imazethapyr/haloxyfop-methyl (96 + 10 + 70 + 60 g ha-1). The tests included two nontreated (no hand weeded and hand weeded). The herbicides were selective for the soybean; exception of the treatments glyphosate applied in the M-SOY 8001 soybean. Under low weed condition, the herbicides applied were effective in the weed control. In the area with larger weed condition, glyphosate applied alone and glyphosate plus imazethapyr caused better control the weeds compared other herbicides. With respect to maximum photosynthetic efficiency response, just conventional soybean was susceptible the herbicides applied, mainly the mixtures containing lactofen + chlorimuron-ethyl and lactofen + chlorimuron-ethyl + imazethapyr / haloxifop-methyl. For total chlorophyll response, the varieties presented susceptibility to the lactofen alone and in mixture with chlorimuron-ethyl, imazethapyr... (Complete abstract click electronic access below)
Orientador: Pedro Luís da Costa Aguiar Alves
Coorientadora: Fabíola Vitti Moro
Banca: Dagoberto Martins
Banca: Maria Aparecida Pessoa da Cruz Centurion
Banca: Ricardo Victoria Filho
Banca: Núbia Maria Correia
Doutor
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Fabig, Leo Nick [Verfasser]. "Electrophysiological and morphological characteristics of VGAT-YFP positive neurons in the lateral habenula of the rat / Leo Nick Fabig." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2021. http://d-nb.info/1241538239/34.
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Inglis, Stuart Donald. "Morphological Characteristics of Hind Limb Musculature in Normotensive and Hypertensive Hamsters in Response to Unloading, Overloading, and Endurance Training." Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1173190139.
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Briers, N. "A morphological and biometric study of the facial characteristics of two South African childhood populations at different age levels." Thesis, University of Pretoria, 2015. http://hdl.handle.net/2263/45942.
Full textAbstract:
Positive identification can be problematic if fingerprinting, DNA, dental history, etc. are no longer available. This may be possible through techniques such as facial approximation, but any form of craniofacial identification requires intimate knowledge of human craniofacial anatomy. Where children are involved, craniofacial changes due to facial growth further complicate matters and require knowledge of tissue thickness and variation in facial shapes. These have hardly been studied in children of African descent.
The aims of this study were to provide data on tissue thickness and craniofacial proportions of South African Black and Coloured children and to document the lateral profile shape changes between the ages of 6 and 13 years.
Tissue thickness was measured using cephalograms of South African children (n = 388). After digitizing the images, tissue thickness measurements were taken at 11 mid-facial landmarks from each image using the iTEM measuring program. Craniofacial proportions were assessed through assessing standardized anterior and lateral facial photographs of 1749 children. Measurements of facial features were taken using iTEM, from which 28 standard facial indices were calculated. For both tissue thickness and craniofacial indices comparisons between groups per age, sex and ancestry were statistically analyzed. In addition, geometric morphometrics were used to describe lateral facial shape changes and differences age, sex and ancestry (n = 800).
The results showed that tissue thickness differences at lower face landmarks are more pronounced in age groups per ancestry as opposed to differences per age and sex. Facial profile per facial shape, class and ancestry showed differences at all landmarks. Craniofacial indices indicated that Coloured children have wider heads, foreheads and faces compared to Black children. The height of the nose and lower lip is longer in Coloured children compared to Black children. In Coloured children, mandibular height and lower face height is shorter in relation to total face height. Males have wider heads, foreheads, mandibles and faces compared to females. The degree of prognathism is dictated by ancestry and to a lesser extent by age and sex as findings showed that maxillary prognathism was more prominent in Black children, while mandibular prognathism were more pronounced in male children. South Africans have a relative concave lateral facial profile due to the maxilla and mandible being more prognathic than in North American children. Differences in lateral face shape between children of various ages, sexes and ancestral groups were visualized through the relative displacement of landmarks related to the forehead and lower face. The resultant differences in lateral facial profile can assist in more accurate estimation of age and ancestry of unknown children. This research created reference datasets for tissue thickness and craniofacial indices of South African children of Black and Coloured ancestry per age and sex that will be useful in the diagnosis of facial dysmorphology and for facial reconstruction / approximation of juvenile remains. It also shed more light on facial growth patterns in the various groups.Thesis (PhD)--University of Pretoria, 2015.
tm2015
Anatomy
PhD
Unrestricted