Дисертації: "[604.4"

1

Robertson, Frances. "Ruling the line : learning to draw in the first age of mechanical reproduction." Thesis, Glasgow School of Art, 2011. http://radar.gsa.ac.uk/2260/.

Повний текст джерела

Анотація:

This dissertation presents a critical study of the development of technical drawing in Britain 1790-1850 in relation to wider visual culture. Technical drawing is often perceived as being an inexpressive, de-natured style and has been largely neglected within art history. Indeed, the images that make up the distinct genre of technical drawing and illustration were produced within distinctive organizational structures such as factory drawing offices and illustrated mass-market publications outside the framework of recognized fine art practices. Nevertheless, I argue that the development of technical drawing and illustration in this period has direct relevance to the discipline of art history, not least because of the rapid growth and spread of this style within wider visual culture. Using an interdisciplinary approach, I ask how the conditions of production of this style affected its later reception. Particular emphasis will be given to the materiality of production in relation to discursive practices in order to address these questions: -Why is technical drawing now seen as inexpressive and inartistic? -How was technical drawing made to seem authoritative with its viewers? The dissertation moves through three areas, subdivided into pairs of chapters. The first area covers questions that relate to current disciplinary boundaries, and their connections to the cultural politics of the period around 1800. The middle section is concerned with the symbolic and expressive aspects of technical drawing and its characteristic linear markings, and proposes that meaning and expression are read by the viewer as much through an awareness of the embodied practices and the materiality of surfaces and production methods used as much as in the depicted content of the image. The final most substantial section of the dissertation is concerned with the ways in which different groups within engineering hierarchies sought to use drawing skills both as a means of self-presentation and for professional formation in the period to 1850. The first section, consisting of Chapters 2 and 3, is concerned with art, industry and cultural politics up to and around 1800 in order to question the various narratives and assumptions that formed my starting point. Chapter 2, ‘Civil engineers and Royal Academicians’ examines how accounts of drawing in art and industry in this period have become separated. Chapter 3, ‘Provincials, pupils and print’, expands this framework. While Chapter 2 will question accounts of drawing practice for art and industry in relation to familiar and specific locations of cultural production this chapter by contrast addresses accounts of both production and reception of drawing practices within wider visual culture in the decades around 1800. It poses the question of where else, beyond the Royal Academy or in engineering practices, might one have learnt to draw in Great Britain, and to what end? Chapters 4 and 5, ‘Fabricating the line’ will ask what aesthetic and symbolic meanings can be taken from styles of mechanical drawing adopted in the first half of the nineteenth century. The argument uses, but also criticises, art historical methods of interpretation based on techniques of visual descriptive analysis and stylistic comparison. Chapter 4, ‘Purity, progress and labour’ examines the meanings that can be attributed to the use of fine uniform ruled lines, and compositional formats of technical drawings on the page, while Chapter 5, ‘Multiplying marks’, examines technical illustrations in print, in order to argue that in the period 1800-c.1830 technical drawing and technical illustration developed in tandem to create a visual style that displayed the industrial system to viewers outside the factory. In my two final chapters 6 and 7 I build on contextual supporting arguments in order to investigate in more detail the social relationships around technical drawing, in the workplace and in professional formation in competition with other occupational groups. I examine questions of professional formation and occupational fragmentation both in relation to elite engineers in Chapter 7 (‘Professional engineers in the world of industrial readers’) and in relation to technical draughtsmen in Chapter 6 (‘Social networks: Artisans, draughtsmen and working relationships’). Draughtsmen comprise a social group that is poorly documented and barely researched in the Britain of this period, in contrast to the scholarship and evidence that relates to the situation in our near industrial neighbour, France. Chapter 6 considers draughtsmen as industrial workers. My findings allow me to argue that the relative invisibility of draughtsmen was not so much the result of their non-elite status, but rather because their status was disputed and problematic. In the first half of the nineteenth century, draughtsmen were squeezed in conflicts about control and autonomy in the workplace, in public anxieties about worker education, and in cultural conflicts about the alleged deficiencies of taste in design for the products of British manufacture. Chapter 7 complements the discussion of professional fragmentation in engineering in Chapter 6 by discussing the visual practices of elite engineers in the first half of the nineteenth century in relation to professional formation, self-presentation, and authorship, and explores aspects of the tensions involved in engineers’ attempts to gain status by making a claim to special expertise and at the same time of popularising their knowledge and achievements in a milieu of competition with other elite professional groups within a culture of display. My research demonstrates that in the period to 1850 in Britain, engineers and technical draughtsmen absorbed, selected, and appropriated expressive practices and discourses from fine art in their work and in their self-fashioning as technical artists, and on that basis they developed new and distinctive conventions of composition, mark making and presentation. In training themselves, technical draughtsmen and engineers developed their visual styles through copying from a wide range of examples and conventions. Draughtsmen could thus reflect on their own selections, and create pictures that reflected their own making. I show that the methods of art history are necessary and relevant in informing the analysis of a topic that is usually confined to histories of technology or science, but these must be integrated with methods and ideas from the history and science and technology. Moving inside the artworld of technical drawing gives a textured account of the ways in which groups of practitioners sought to gain authority by visual means, either with their immediate peers and rivals, or with more general viewers, thus breaking down topic of ‘technical drawing’ into a much more differentiated field of human activity where visual descriptive analysis begins to have a purchase on issues of the social history of ‘arts and manufactures’ in Britain in the period to 1850. Approaches from the history of technology and science inform my examination of the social and technical negotiations for status in visual production; in addition, two particular topics from the history of science have developed this dissertation towards future research questions I will follow as an art historian interested in visual communications: first, questions about how truth claims have been established and contested through demonstration, and second, in relation to ‘print culture’ how areas of specialist expertise are constructed and presented to general readers.

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Bui, Soi. "Characterisation of the RDX-degrading XplA/XplB redox system from Rhodococcus rhodochrous." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/characterisation-of-the-rdxdegrading-xplaxplb-redox-system-from-rhodococcus-rhodochrous(9355f6f0-62e8-4e07-ad16-786f00a957af).html.

Повний текст джерела

Анотація:

Hexahydro-1,3,5-trinitro-1,3,5-triazene (RDX) is a military explosive that has become a recalcitrant environmental pollutant over the last few decades owing to its production, storage and use. CYP177A1 (XplA) is a biotechnologically interesting and novel class of P450-flavodoxin fusion enzyme identified from Rhodococcus rhodochrous strain 11Y that catalyses the breakdown of RDX. Its redox partner is a NAD(P)H-dependent FAD-binding flavodoxin reductase (XplB). This study reports the biochemical, biophysical and structural properties of these two enzymes which form a novel P450 redox system with unique domain organisation. These reveal novel features for a P450 enzyme with non-standard UV/Visible spectroscopic features and unusual ligand binding properties. Unexpectedly, XplA’s affinity for imidazole is exceptionally high (Kd = 1.57 μM), explaining previous reports of a red- shifted XplA Soret band in pure enzyme. XplA’s true Soret maximum is at 417 nm. Similarly, the XplA flavodoxin domain displays unusually weak FMN binding (Kd = 1.09 μM), necessitating its reconstitution with the FMN cofactor. Ligand binding data demonstrate XplA’s constricted active site, which can only accommodate RDX and small inhibitory ligands (e.g. 4-phenylimidazole and morpholine) while discriminating against larger azole drugs. The crystal structure identifies a high affinity imidazole binding site, consistent with its low Kd, and shows active site penetration by PEG, perhaps indicative of an evolutionary lipid metabolising function for XplA. The substrate-free heme iron potential (-268 mV vs. NHE) is positive for a low spin P450, consistent with the predominantly reductive role of XplA. The elevated potential of the FMN semiquinone/hydroquinone couple (-172 mV) is also consistent with this functional adaptation. The XplB reductase partner could not be isolated with the FAD cofactor incorporated to make holoprotein. However, the protein was isolated in a soluble and homogenous state which demonstrated very weak FAD affinity. XplB’s ability to interact with XplA and a pyridine nucleotide coenzyme was demonstrated, indicating the enzyme was functional in the presence of FAD. XplA’s unusual molecular selectivity, structural and thermodynamic properties likely reflect its evolution as a specialised RDX reductase catalyst.

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Kasmani, Rafiziana Md. "Vented gas explosions." Thesis, University of Leeds, 2008. http://etheses.whiterose.ac.uk/1604/.

Повний текст джерела

Анотація:

Explosion venting technology is widely accepted as the effective constructional protection measures against gas and dust explosions.The key problem in venting is the appropriate design of the vent area necessary for an effective release of the material i.e. the pressure developed during explosion did not cause any damage to the plant protected.Current gas explosion vent design standards in the USA (NFPA68, 2002) and European (2007) rely on the vent correlation first published by Bartknecht in 1993 (Siwek, 1996).N FPA 68 also recommends the correlation of Swift (Swift,1983)at low overpressures. For a vent to give no increase in overpressure other than that due to the pressure difference created by the mass flow of unburnt gases through the vent, the vent mass flow rate is assumed to be equal to the maximum mass burning rate of the flame and this consideration should be used as the design mass flow through the vent. Two different methods ( Method I and Method 2) have been proposed based on the Sμ and Sμ (E-1) to describe the maximum mass burning rate given as, mb = ASμpμ=CdeA(2pPμred)o.5 mb =ASgPm =AgSμ(E-I)P μ=Cde4,(2pu Pred)0,5 (2) The equation given in (2) is slightly different from (1) as is about 6.5 times the mass flow of the first method as it takes the effect of (E-1) where E is the expansion ratio. A critical review were carried out for the applicability, validity and limitation on the venting correlations adopted in NFPA 68 and European Standard with 470 literature experimental data, covering a wide range of values for vessel volume and geometries, bursting vent pressure, Pv L/D ratio, maximum reduced pressure, Pred and ignition location. The fuels involved are methane, propane, hydrogen, town gas, ethylene, acetone/air mixtures with the most hazardous near-stoichiornetric fuel-air concentration. Besides, Molkov's equation (Molkov, 2001) which is regarded as alternative venting design offered in NFPA 68 and Bradley and Mitcheson's equation for safe venting design were also analysed on the experimental data for their validity and limitation as well as the proposed methods. From the results, it is clear that Bartknecht's equation gave a satisfactory result with experimental data for K <-5 and Swift's equation (Swift, 1983) can be extended to wider range for Pred> 200 mbar, providing the parameter PV is added into the equation. Method 2 gave a good agreement to most of the experimental data as it followed assumptions applied for correlations given by Bradley and Mitcheson for safe venting design (Bradley and Mitcheson, 1978a,B radley and Mitcheson, 1978b). It is also proven that the vent coefficient, K is confident to be used in quantifying the vessel's geometry for cubic vessel and the use of As/Av term is more favourable for non-cubic vessels. To justify the validity and applicability of the proposed methods, series of simply vented experiments were carried out, involving two different cylindrical volumes i.e. 0.2 and 0.0065 M3. It is found that self acceleration plays important role in bigger vessel in determining the final Pmax inside the vessel. Method 2 gave closer prediction on Pmax in respect with other studied correlations. The investigation of vented gas explosion is explored further with the relief pipe been connected to the vessel at different fuel/air equivalence ratios, ignition position and Pv. The results demonstrate that the magnitude of Pmax was increased corresponding to the increase of Pv- From the experiments,it is found that peak pressure with strong acoustic behaviour is observed related to increase in Pv and in some cases,significant detonation spike was also observed particularly in high burning velocity mixtures. It is found that substantial amount of unburnt gases left inside the vessel after the vent burst is the leading factor in increase of Pmax for high burning velocity mixtures at centrally ignited. The associate gas velocities ahead of the flame create high unburnt gas flows conditions at entry to the vent and this give rise to high back pressures which lead to the severity in final Pmax inside the vessel. It was observed that end ignition leads to a higher explosion severity than central ignition in most cases, implying that central ignition is not a worst-case scenario in gas vented explosions as reported previously.

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Тодосійчук, Тетяна Сергіївна. "Поліваріантна біотехнологія препаратів-антисептиків на основі мікробних бактеріолізинів". Doctoral thesis, Київ, 2016. https://ela.kpi.ua/handle/123456789/16294.

Повний текст джерела

Анотація:

Дисертацію присвячено науковому обгрунтуванню та розробці поліваріантної біотехнології різних форм антисептичних препаратів з використанням селекціонованого продуценту бактеріолізинів Streptomyces albus UN 44. Запропонована схема підтримуючої селекції продуценту, проведено комплексний таксономічний аналіз та реідентифікація культури. Вперше встановлена здатність культури до синтезу антифунгальних антибіотиків, які були виділені та ідентифіковані як біс(2-етилгексил)фталат і 3-O- метилциклополова кислота. Модифіковано та оптимізовано склад поживного середовища для біосинтезу бактеріолізинів, що визначило його здешевлення у 1,5-2 рази та підвищення продуктивності культури до 8-9 тис. МО/см3. Обгрунтована доцільність застосування адсорбційного способу для одержання іммобілізованої форми бактеріолітичного препарату з використанням аеросилу та встановлені основні механізми іммобілізації. Розроблені іммобілізований бактеріолітичний препарат з активністю 100 тис. МО/г, рідкий комплексний антисептик Цитал, рідкий та гранульований препарати для рослинництва Стрептофунгін-Фіто, препарати окремих бактеріолізинів ферментного комплексу та препарат антибіотиків Стрептофунгін. Розроблено процеси застосування окремих препаратів у складі композицій побутових та промислових синтетичних мийних засобів, в основі композицій м′яких та рідких форм лікувальних ветеринарних препаратів, а також в процесах отримання біологічно активних компонентів мікробних клітин та в харчовій промисловості.

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Карпенко, Ілона Василівна. "Біотехнологія рамноліпідних поверхнево-активних продуктів штаму pseudomonas sp. PS-17 та їх застосування для олійних рослин". Thesis, КПІ ім. Ігоря Сікорського, 2017. https://ela.kpi.ua/handle/123456789/19098.

Повний текст джерела

Анотація:

Дисертація присвячена розробленню технології отримання поверхнево-активних речовин штаму Pseudomonas sp. PS-17 та технологій їх застосування для вирощування олійних рослин. Встановлено ефективність використання економічно вигідних субстратів (фузу олійного, пересмаженої олії), композицій їх з гліцерином, а також дробного способу їх подачі для синтезу рамноліпідних ПАР: вихід підвищено на 18-39% порівняно з гліцерином. Удосконалено способи виділення ПАР, одержано економічно вигідні продукти. Методом лінійних багатопараметрових рівнянь визначено оптимальні екстрагенти рамноліпідів. Показано, що отримані ПАР мають високу поверхневу (28,3 мН/м), емульгувальну (індекс Е24 60-80%), змочувальну активність, впливають на проникність клітинних мембран мікроорганізмів, рослин, підсилюють дію біоцидів, фітогормонів. Встановлено стимулювальний вплив ПАР на ріст олійних рослин, їх фізіолого-біохімічны показники. Ефективність отриманих ПАР у вирощуванні соняшника доведено у дрібноділянкових і виробничому дослідах: за їх використання значно підвищувалися ростові показники та якість врожаю. Розроблено технологічну та апаратурно-технологічну схему виробництва ПАР штаму Pseudomonas sp. PS-17, яка дозволяє одержати 5 форм цільових продуктів для практичного застосування у рослинництві.
The dissertation thesis is devoted to the development of the biotechnology of microbial synthesis of the surface-active substances by the strain Pseudomonas sp. PS-17 and their application in cultivation of oil-bearing plants. The effectiveness of the application of cost-beneficial substrates (used frying oil and waste from production of sunflower oil – phosphatide concentrate) was established for the synthesis of rhamnolipid surfactants by the strain Pseudomonas sp. PS-17 when applied alone and in combination with glycerol. It was shown that the use of combined substrates contributed to the increased yields of rhamnolipids if compared to the media with monosubstrates. When using a mixture of glycerol and used frying oil or phosphatide concentrate as carbon sources the final concentration of rhamnolipids can be increased on 18-39 %. The developed approaches of the synthesis of rhamnolipid surfactants will enable the decrease of the overall cost of biosurfactant production if compared with the cost of the production on glycerol alone. The processes of rhamnolipid surfactant separation were optimized: enzymatic hydrolysis (using protease C enzyme) of post-fermentative culture liquid, precipitation of rhamnolipid biocomplex (RBC) from culture liquid supernatant (CLS) by adjusting temperature regime. Economically viable forms of targeted products based on exo- and endomethabolites of Pseudomonas sp. PS-17 and methods of their isolation were proposed. Optimum solvents for the extraction of rhamnolipids from CLS were determined using the method of linear multiparameter equations. Physico-chemical and biological properties of the products based on surfactants of Pseudomonas sp. PS-17 were established: surface activity, emulsification of hydrophobic substances, wetting of surfaces, the influence on the permeability of cell membranes of microorganisms and plants, the activity of surfactants on the major groups of phytohormones (auxins, cytokinins, gibereline acid). The antimicrobial activity of surfactants against phytopathogen microorganisms was shown, and highly effective formulations of rhamnolipid surfactant with ethylthiosulfonate-biocide were designed. A stimulating action of the synthesized rhamnolipid surfactants on the growth of oil-bearing plants was established. It was shown that the effect of the biosurfactants on microorganisms and plants via the changes in their physiological and biochemical characteristics (growth rate, cell membrane permeability, activity of enzymes and phytohormones). The possibility of application of the obtained biosurfactants in agriculture as plant growth regulators was established. The effectiveness of the developed biosurfactants in growing sunflower was confirmed by a small plot experiments, as well as in the field experiment. It was shown that rhamnolipid surfactants promote growth and quality of the crops (the mass of 1000 seeds, flower diameter, fat and protein content in the seeds). The process flow and equipment diagrams of industrial production of rhamnolipid surfactants of Pseudomonas sp. PS-17 using a vortex bioreactor were developed, 5 forms of rhamnolipid products for practical use in cropping were obtained.
Диссертация посвящена разработке технологии синтеза поверхностно-активных веществ штаммом Pseudomonas sp. PS-17 и их применению для выращивания масличных растений. Установлена эффективность использования экономически выгодных субстратов (фуза масляного, пережаренного масла), их смесей с глицерином, дробного способа их подачи для синтеза рамнолипидных ПАВ, выход увеличен на 18-39% относительно глицерина как моносубстрата. Усовершенствованы способы выделения рамнолипидных ПАВ, получены экономически выгодные продукты. Методом линейных многопараметровых уравнений найдены оптимальные экстрагенты рамнолипидов из СКЖ. Разработанные ПАВ имеют высокую поверхностную (28,3 мН/м), эмульгирующую (индекс Е24 60-80%), смачивающую активность, влияют на проницаемость клеточных мембран микроорганизмов, растений, усиливают действие биоцидов, фитогормонов. Показано стимулирующее действие полученных ПАВ на рост масличных растений, их физиолого-биохимических показателей. Эффективность рамнолипидных ПАВ при выращивании подсолнечника установлена в мелкоучастковых, производственных опытах: значительно увеличены ростовые показатели, а также качество урожая. Разработана технологическая и аппаратурно-технологическая схемы промышленного производства рамнолипидных ПАВ Pseudomonas sp. PS-17 для получения 5 форм продуктов для практического применения в растениеводстве.

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Tibbles, Katherine L. "Regulation of Clb1 during meiosis in Saccharomyces cerevisiae." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/60444/.

Повний текст джерела

Анотація:

Meiosis is a specialised form of cell division in which diploid cells divide to form four non-identical spores containing half the genetic complement of the parent. During this cell division program, much of the usual machinery regulating cell division is put to alternate use to allow the cells to undergo an extra round of division without an intervening phase of DNA synthesis. In particular, the end of the first division, meiosis I, must be regulated differently than the end of the mitotic division. We used the model organism Saccharomyces cerevisiae to determine some of these differences in regulation. The cell division program is driven by the sequential association of cyclins with the CDK (cyclin dependent kinase), leading to waves of kinase activity. Exit from mitosis requires the downregulation of CDK activity, and is coordinated by two signalling networks, the FEAR (Cdc14 Early Anaphase Release) network and the MEN (Mitotic Exit Network). Both networks initiate the release of the phosphatase Cdc14 from its inhibitor, Net1, to counter CDK activity. Exit from meiosis I similarly relies on Cdc14 activity, but is driven only by the FEAR network. Experimental results showed that the phosphorylation state and subcellular localisation of the meiotic cyclin, C1b1, are altered in meiosis I. We investigated this relationship and aimed to determine the kinase responsible. We used modelling techniques to explore several rationales for the specific regulation of C1b1. We examined the functional significance of C1b1 localisation, using localisation mutants, and made an investigation into Cdc14 release in meiosis I.

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Schafer, David Gerald. "Mechanisms underlying epigenetic gene silencing in maize." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/60414/.

Повний текст джерела

Анотація:

Higher organisms can regulate gene expression through changes in epigenetic marks present on the genome. However, how this regulation takes place in organisms with highly repetitive/complex genomes is not well understood. The acquisition of de novo DNA methylation in plants is mediated by siRNAs through the RNAdirected DNA methylation (RdDM) pathway. The targeted deposition of DNA methylation by this pathway allows for the transcriptional silencing of transposable elements and repeat sequences within the genome, as well as regulating gene expression. In addition, it has been hypothesized that mobile siRNAs may be involved in the epigenetic communication between different seed components. Thus the mobility of non-coding RNAs from extra-embryonic tissues could contribute to epigenetic modifications that could be transmitted to the offspring. The aim of my thesis is to characterise the mechanisms involved in epigenetic gene silencing in maize through the use of a novel transgenic reporter. My work has identified components of the RdDM pathway to be involved in maintenance of gene silencing and show that imprinting and paramutation could be recapitulated using synthetic transgenes. In addition, I developed a novel grafting technique to demonstrate that epigenetic gene silencing could be efficiently transmitted between different seed components. Collectively, this work provides an insight into the complex mechanisms that regulate gene expression in the highly repetitive/complex genome of maize.

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Schramm, Pierre. "Comparative study of in-school learning contexts : comparison between France and England." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/60434/.

Повний текст джерела

Анотація:

This work consists in a theoretical overview of positioning theory, the construction of a methodology for interaction analysis, and its application to classroom interaction. The latter part is based on transcripts from audio-video recordings of 15 hours of lessons in mathematics and physics or science in England and in France, with children aged between 11 and 12. These transcripts were divided up into episodes, units displaying coherence in theme and purpose; and each episode was coded according to the types of behaviour the teacher displayed in them. The same types of behaviour were found in plenary interaction as those found by previous research into group work. Analysis carried out to highlight co-occurring types of behaviour (seen as rights and duties) only yielded two co-occurring rights – asking a scientific question and validating a statement, consistently with the previously noted prevalence of IRE/IRF sequences. A frequency analysis of the levels of occurrence of individual types of behaviour highlighted the scarcity of unsupported teacher statements. Further analysis of the episodes featuring teacher statements showed that the teacher may only introduce new elements on the basis of their own authority in highly specific circumstances: (a) after a student’s mistake, in which case the teacher’s statement is limited to explaining why the aforementioned mistake is one; (b) after a student’s question or (c) after a student’s unsolicited statement. In the last two cases, the teacher’s statement may go beyond the remit of the question or statement. Content introduced in such a way appears to have a longer-lasting legitimacy than that introduced with the help of official content. Some implications of these results are discussed: the need to take into account student agency in further research; and it is suggested that a lecturing style of teaching might be beneficial for learning.

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Di, Napoli Claudia. "Label-free multiphoton microscopy of intracellular lipids using Coherent anti-Stokes Raman Scattering (CARS)." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/60484/.

Повний текст джерела

Анотація:

Coherent Antistokes Raman Scattering (CARS) microscopy has emerged in the last decade as a powerful multiphoton microscopy technique to rapidly image lipid droplets (LDs) label-free with intrinsic three-dimensional spatial resolution in cells. In this thesis I investigate and compare the ability of hyperspectral CARS and dual-frequency/differential CARS (D-CARS) to enable the chemical specificity required to distinguish lipids of different chemical composition. In hyperspectral CARS a series of spatially-resolved images are acquired over a frequency range thus proving high chemical specificity. In D-CARS two vibrational frequencies are simultaneously excited and probed, and the resulting sum and difference CARS intensities are detected by a fast and efficient single photomultiplier. This results in a higher image speed than hyperspectral CARS and in an improved image contrast against the nonresonant CARS background with a straightforward data analysis. D-CARS and hyperspectral CARS techniques were applied to LDs in model and cellular systems. In model systems made by agarose gel, droplets of pure lipids with different degree of unsaturation (number of carbon-carbon double bonds in the fatty acyl chain) were used as test sample to compare Raman spectra with CARS spectra, and measure D-CARS images at specific chemically-selective wavenumbers. Building from this knowledge, cytosolic droplets induced by loading fatty acids to the culture media of human adipose-derived stem cells (ADSCs) were distinguished in composition both in fixed cells and in living cells during differentiation into adipocytes. Furthermore, the application of a in-house developed Hyperspectral Image Analysis (HIA) software on hyperspectral data provided spatial distributions and absolute concentrations for the chemical components of the investigated specimens. In particular quantitative information was extracted about the concentration of pure neutral lipid components within cytosolic LDs, and changes over time were inferred in living ADSCs according to the type of pure fatty acid added to the culture media.

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Orchard, Helen Claire. "Jesus as victim : the dynamics of violence in the Gospel of John." Thesis, University of Sheffield, 1995. http://etheses.whiterose.ac.uk/6044/.

Повний текст джерела

Анотація:

This thesis explores a previously unrecognized theme within the Gospel of John. The theme is violence and its expression through the victimization of the narrative's protagonist, Jesus. It suggests that he is presented as being, as well as perceiving himself to be, a victim. This offers an understanding of the Johannine Jesus which counters the traditional model of a serene and omniscient figure who exercises sovereign control over his environment. The first section aims to situate the research methodologically, theologically and historically. Some of the presuppositions underlying the study are best understood in the context of liberation theology, and the way in which a liberator is seen to function within an oppressed community. Drawing on theories about the historical origin of the Gospel, reasons why victimization might be expected to be a prominent theme in John are also suggested. The main body of the thesis comprises targeted exegesis of passages which reveal Jesus experiencing violence and manifesting the behaviour of a victim. This section is subdivided into six chapters which work their way chronologically through the narrative. The first two explore the public ministry from different perspectives - physical and psychological - with the latter discussing the character of Jesus with insights afforded by the discipline of victimology. Subsequent chapters discuss the way in which Jesus approaches and encounters his death. In particular, the traditional picture of Jesus as the `glorious victor' on the cross is impugned; and figures from the Hebrew Bible are employed as hermeneutical tools for recognizing him as a victim. The final chapter discusses the difference in behaviour of the resurrected Jesus. It concludes that, freed from the threat of `the hour', he no longer perceives himself to be a victim. This enables him to attend to the needs of his disciples, empowering them to overcome areas of oppression in their own lives.

Стилі APA, Harvard, Vancouver, ISO та ін.

11

Pizzera, Filippo Elia. "Uso di misure idrometriche satellitari per la calibrazione dei modelli numerico-idraulici: il caso del fiume Po." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6044/.

Повний текст джерела

Анотація:

Questo lavoro di tesi tratta l'utilizzo di misure idrometriche satellitari in combinazione con le misure idrometriche tradizionali per la calibrazione dei modelli numerico-idraulici. Il presente elaborato riguarda la calibrazione di un complesso modello idraulico del Fiume Po implementato in HEC-RAS. Il caso di studio è un tratto del Fiume Po lungo circa 131 km, che va dalla sezione relativa alla stazione idrometrica di Borgoforte e termina all'incile del Po di Goro. Le Analisi numeriche svolte si suddividono in tre gruppi, il primo sfrutta l'impiego di soli dati idrometrici tradizionali, il secondo l'impiego di soli dati idrometrici satellitari e il terzo l'impiego di entrambe le tipologie di dati idrometrici.

Стилі APA, Harvard, Vancouver, ISO та ін.

12

Pergreffi, Lucia <1979&gt. "Erasmo come Ercole nell'adagio Herculei labores." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/6044/.

Повний текст джерела

Анотація:

Il lavoro consiste nella traduzione dell’adagio 2001, Herculei labores con commento delle righe 1-116, che comprendono il racconto della fatica di Ercole contro l’idra di Lerna e le interpretazioni che Erasmo ne fornisce per introdurre la filologia come impresa erculea in chiave autobiografica. L’introduzione ha lo scopo di presentare una sintesi degli elementi notevoli del commento e alcune osservazioni sull’autorappresentazione di sé dell’umanista. Erasmo fa dell’identificazione con Ercole un topos della propria descrizione in chiave ironica, ma si propone anche come emulo di Girolamo, di cui cura l’edizione delle lettere. Questo lavoro prende in considerazione infine il ritratto di Erasmo dipinto da Holbein e custodito a Longford Castle in relazione al testo dell’adagio, al quale allude con la scritta in primo piano, ΗΡΑΚΛΕΙΟΙ ΠΟΝΟΙ.
The work is the Italian translation of Erasmus’ Adagium 2001, Herculei labores, with comment of lines 1-116, which include the story of the labor of Hercules against the Hydra of Lerna and interpretations that Erasmus provides in order to introduce philology as a Herculean task in autobiographical perspective. The introduction aims to present the most relevant elements of the comment and some observations about the humanist’s self representation. Erasmus makes his identification with Hercules a topos in his ironical self description, but at the same time he describes himself as a new Jerome, whose letters he is editing. Eventually it also considers the portrait of Erasmus painted by Holbein the Younger and kept at Longford Castle in the light of the text of the adagium, which is referred to with the word in the foreground, ΗΡΑΚΛΕΙΟΙ ΠΟΝΟΙ.

Стилі APA, Harvard, Vancouver, ISO та ін.

13

Gusmán, Natalia, and Andrea Gómez. "Las estrategias familiares de vida de agricultores familiares integrantes del grupo "El Bolsón de Verduras" en el norte de Mendoza." Bachelor's thesis, Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y Sociales, 2013. http://bdigital.uncu.edu.ar/6044.

Повний текст джерела

Анотація:

La presente tesina se propuso investigar las estrategias familiares de vida de agricultores miembros del grupo "El Bolsón de Verduras" ubicados en el norte de Mendoza (zona limítrofe entre los departamentos de Lavalle y Las Heras).
Fil: Gusmán, Natalia. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y Sociales.
Fil: Gómez, Andrea. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y Sociales.

Стилі APA, Harvard, Vancouver, ISO та ін.

14

Aaserud, Stein. "Residuals and Functional Form in Accelerated Life Regression Models." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for matematiske fag, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13091.

Повний текст джерела

Анотація:

This thesis examines misspecifed log-location-scale regression models. Particularily how the models' CoxSnell residuals can be used to infer the functional form of possibly misspecified covariates in the regression. Two different methods are considered. One is using a transformation of the expected value of the residuals. The second is based on estimating the hazard rate function of the residuals using the covariate order method. Simulations and computations in the statistical computing environment R are used to obtain relevant and illustrative results. The conclusion is that both methods are able to recover the functional form of a misspecified covariate, but the covariate order method is best when high levels of censoring are introduced. The KullbackLeibler theory, applied to misspecified regression models, is a part of the basis for the investigations. The thesis shows that a theoretical approach to this theory is consistent with the methods used in R.

Стилі APA, Harvard, Vancouver, ISO та ін.

15

Roy, Deb Kumar 1969. "NewsComm--a hand-held device for interactive access to structured audio." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/60444.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

16

Pereira, Mirtes Lia. "“Cuide da Saúde”: aprendendo a ser saudável com agendas e gincanas escolares." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/60404.

Повний текст джерела

Анотація:

A presente Tese, situada na linha de pesquisa dos Estudos Culturais em Educação e utilizando-se do referencial teórico de Michel Foucault, constitui-se em um estudo sobre artefatos escolares que se destinam a ensinar maneiras de ser saudável, na atualidade. Para tanto, foram analisadas as cinco publicações das Agendas de Saúde Escolar correspondentes aos anos de 2007, 2008, 2009, 2010 e 2011 e as edições de 2009, 2010 e 2011 das Gincanas Solidárias, bem como os blogs de duas escolas participantes das atividades propostas nessas Gincanas. Tanto as Agendas de Saúde Escolar como as Gincanas Solidárias são projetos divulgados e efetivados na rede municipal de ensino de Porto Alegre/RS, sendo o projeto das Agendas oriundo do Programa Nacional de Saúde Escolar e o projeto das Gincanas uma proposta da própria Secretaria Municipal de Educação de Porto Alegre. O estudo procurou evidenciar como determinados discursos sobre saúde são colocados em evidência e ensinam os sujeitos a serem saudáveis através de máximas, slogans, orientações, poesias, textos informativos bem como desenhos e fotos produzidos, em sua grande parte, por alunos/as de escolas municipais participantes dos projetos. Entende-se, nesta tese, que as relações estabelecidas entre as diferentes enunciações presentes nos artefatos conferem às Agendas e às Gincanas a função de produtoras de uma cultura da saúde escolar, pois essas se inserem através de suas enunciações, discursos e práticas no contexto curricular, estabelecendo relações de poder-saber entre os diferentes sujeitos que organizam, participam e utilizam esses artefatos. Foi problematizado o modo como o material pesquisado age como uma forma de biopolítica voltada para a saúde escolar, operando modos peculiares de gerenciamento da população em relação ao alcance de uma vida saudável. O conceito de performatividade foi abordado como um eixo de análise a partir do qual se colocaram em articulação significados atribuídos à saúde que circulam no currículo e se direcionam à produção de práticas, bem como ao posicionamento dos sujeitos escolares. Foi possível perceber que as discussões contemporâneas sobre o binômio promoção da saúde/prevenção de doenças atravessam a organização dos materiais examinados, existindo, no entanto, um acento maior no cunho preventivo. Foi possível perceber, também, que na produção dos artefatos, há um viés moral e humanizador muito próximo dos discursos da pedagogia crítica, direcionado a condutas de saúde voltadas ao cuidado de si, dos outros e do meio ambiente. É importante considerar que os discursos presentes nos artefatos examinados, bem como os que circulam no currículo através das práticas que tais artefatos produzem, convocam alunos/as, professores/as e comunidade escolar em geral a assumirem condutas e hábitos considerados saudáveis e capazes de conduzir ao bem estar individual e coletivo.
The present thesis, situated on the Cultural Studies Education area, based on Michel Foucault`s theoretical references, constitutes a study on school artifacts that intend to teach ways of being healthy, presently. For such, it has been analyzed the five publications of the School Health Agendas, corresponding to the years of 2007, 2008, 2009, 2010 and 2011, and the editions of 2009, 2010 and 2011 of the Supportive Gymkhanas, as well as the blogs of two participant schools in those gymkhanas. Both School Health Agendas and Supportive Gymkhanas are projects divulged and carried out by the municipal school administration of Porto Alegre/RS, coming from the National Program for School Health. As for the Gymkhanas Project, they are a proposal of the Municipal Education Department of Porto Alegre. The study aimed to point the ways determined discourses about health are put on evidence and teach subject how to be health though maxims, slogans, orientations, poetry, informative texts as well as drawings and photos produced, in their majority, by students from the municipal schools that take part in the project. It is understood in this research that the relationships established among the different enunciations present in the artifacts grant the Agendas and the Gymkhanas the function of producers of a culture of school health, for they introduce themselves through enunciations, discourses and practices in the curricular context curricular, establishing relationships of power-knowledge among the different subjects that organize, take part and utilize such artifacts. It is discussed the way the researched material acts as a form of biopolitics turned to school health, operating peculiar means of managing the population in what regards to a healthy life. The concept of performativity was approached as a point of analysis from which meanings attributed to health that appear in the curriculum were put together for understanding how they directed to the production of practices as well as the positioning of school subjects. It has been possible to note that the contemporary discussions on the binomial health promotion/prevention of disease permeate the examined material. Notwithstanding, it has been observed that it is given more emphasis on the prevention aspect. Besides, it was observed that in the production of the artifacts there is a moral and humanizing bias that approaches the critical pedagogy, directed to heath conducts turned to the self, the others and the environmental care. It is important to consider that the discourses present on the researched artifacts, as well as those that circulated on the curriculum through the practices which such practices produce, convene students, teachers and the school community in a general basis to take on conducts and habits considered healthy and capable of leading to individual e collective well-being.

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Tomazi, Michely. "Estabilidade da matéria orgânica em Latossolos do Cerrado sob sistemas de uso e manejo." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2008. http://hdl.handle.net/10183/60474.

Повний текст джерела

Анотація:

A pesquisa foi realizada em experimentos de longa-duração em Latossolos da região do Cerrado, e consistiu em três estudos. No estudo I a influência da granulometria da amostra (9,51 mm x 2,00 mm) na obtenção da fração leve oclusa (FLO) da matéria orgânica do solo (MOS) pelo fracionamento físico densimétrico foi avaliada sob sistemas de manejo contrastantes em agregação e em aporte de MOS ao solo. No estudo II o efeito dos sistemas de preparo convencional (PC) e plantio direto (PD) sobre os estoques de C do solo inteiro (COT) e das frações físicas da MOS (FL, fração leve e FP, fração pesada) foi avaliado, e os resultados utilizados no cálculo do índice de manejo de C em três Latossolos com textura e mineralogia distintas de Mato Grosso do Sul (MS), Goiás (GO), e Maranhão (MA) (LV-MS, LVA-GO e LVA-MA), sendo os dois primeiros de textura muito argilosa e o terceira textura média. No estudo III avaliou-se o efeito dos sistemas de manejo PC, CM (cultivo mínimo) e PD, sobre a agregação do solo e os estoques de C e N do solo e das frações físicas da MOS (FLL-fração leve livre, FLO, e FP) dos solos LVA-GO e LV-MS, conduzidos há 15 e 13 anos, respectivamente. Verificou-se uma subestimação da quantidade de FLO quando utilizadas amostras < 2,00 mm, sendo esta mais acentuada nos solos e sistemas de manejo com maior índice de agregação e maior COT. O sistema PC promoveu reduções significativas do C do solo inteiro e das FL e FP sob PC no LVA-MA e LV-MS, reduzindo principalmente a labilidade do C. Entretanto, a conversão para PD acumulou C nos três solos em relação ao PC, na mesma taxa anual. No LV-MS a FP teve a maior contribuição para o aumento do C do solo (60%), enquanto que nos LVA-GO e LVA-MA a FL foi mais importante (70 e 78%). Desta forma, o PD proporcionou melhor qualidade do solo comparado ao PC evidenciado pelo aumento do IMC, principalmente no LVA-GO. Nos dois solos argilosos, a conversão de CE para agricultura em PC levou a uma redução acentuada da agregação, e conseqüentemente a FLO foi mais afetada. Entretanto, a recuperação parcial da agregação com adoção do PD e CM foi observada apenas no LV. Dentre as frações da MOS, a FLO foi a mais afetada com uso do PC e contribuiu para maiores perdas de C no LVA-GO, enquanto que na recuperação dos estoques de C em PD, a FLL foi a mais importante. Por outro lado, no LV-MS a FP foi a que mais contribuiu tanto para perdas como para os ganhos em C do solo. Os estoques de N seguiram a mesma tendência do C, porém com maiores concentrações na FP. A relação C:N demonstrou que as alterações nas frações ocorreram na ordem decrescente FLL>FLO>FP. A resistência dos solos aos impactos dos sistemas de manejo foi mais relacionada à mineralogia dos solos do que a textura.
The research was based on long-term experiment in Oxisols in Cerrado region, constituting three studies. The study I verified the influence of the sample granulometrie size (< 9,51 mm x < 2,00 mm) on C recovery in occluded light fraction (OLF) of the soil organic matter (SOM) by density physical fractionation in soils under management system contrasting in aggregation and SOM addition. In the study II the effect of conventional tillage (CT) and no tillage (NT) was evaluate on the C organic stocks in whole soil (TOC) and SOM physical fractions (ligth fraction- LF and density fraction - DF), and the results are used to calculate the carbon management index (CMI) in three Oxisoils with distint texture and mineralogy in Mato Grosso do Sul (MS), Goiás (GO), and Maranhão (MA) states, the two first is clayed and the last is loam texture. Last study we investigate the effect of CT, MT (minimal tillage) and NT on soil aggretation and stocks of C and N in whole and in physical fractions of SOM (FLF-free ligth fraction, OLF, and HF) from GO and MS soils, cultivated 15 and 13 years, respective. We verified OLF subestimation when fractionation was initiate from < 2,00 mm soil sample, and it was more instense in management soil system with higher aggregation index and TOC. The CT promoted a significant C reduction on TOC, LF and HF in MA and MS, mainly in C lability. However, the CT conversion to NT increased the TOC input in the same annual rate on the three soils. In MS the HF contributed more to TOC increase (60%) while in GO and MA the LF was more important (70 e 78%). Then, the NT promoted better soil quality compare with CT express by higher IMC, mainly in GO. In clayed soils, the CT promoted elevate reduction on aggregation and consequently the OLF was more affected, however, the aggregation recovery on NT was evident only in MS. The OLF contribute more to C decrease in GO, but in C recuperation on NT, the LFL was more important. On the other hand, in MS the HF contribute more to C reduction on CT as well as input of C on NT The N stocks follow same tendencies of the C, but with higher concentration in HF. The C:N rate demonstrate that fractions alteration was in order FLL>FLO>FP. The soil resistance to management impacts was more related to mineralogy than texture.

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Almeida, Denice de Oliveira. "Fauna epiedáfica e atributos microbiológicos de solos sob sistemas de manejo no subtrópico brasileiro." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/60484.

Повний текст джерела

Анотація:

O objetivo deste estudo foi avaliar o impacto de sistemas de manejo do solo utilizados no subtrópico brasileiro sobre indicadores microbiológicos e de fauna epiedáfica. O estudo foi realizado em três áreas experimentais de longa duração localizadas nos estados do Rio Grande do Sul (municípios de Eldorado do Sul e Cruz Alta) e de Santa Catarina (município de Lages). Diferentes sistemas de cultura (rotação de culturas e monocultura; diferentes plantas de cobertura de solo antecedendo o milho no verão) e de preparo de solo (plantio direto e preparo convencional) foram avaliados nas diferentes areas experimentais, as quais foram amostradas na camada de 0-10 cm para avaliação da da atividade microbiana de C e N da biomassa, enzima β- glucosidade e urease, quociente metabólico e respiração microbiana. A fauna epiedáfica foi avaliada pelo método da armadilha de pitfall. Os preparos de solo tem efeito predominante na fauna do solo, enquanto os sistemas de cultura tem efeito secundário. O efeito dos preparos de solo é mais intenso no período logo após a sua realização, diminuindo em intensidade com o passar do tempo. Gramineas de cobertura de solo promovem a fauna e atributos microbianos ligados ao carbono, enquanto a cobertura com leguminosa promove aqueles ligados ao nitrogênio. O sistema de rotação de culturas associada ao plantio direto promove melhor ambiente para a fauna e microbiota dos solos.
The aim of this study was to evaluate the impact of soil management systems on epidaphic fauna and microbial indicators in the Southern Brazil. The study was performed in three long term experiments located at the states of Rio Grande do Sul (counties of Eldorado do Sul and Cruz Alta) and Santa Catarina (county of Lages), South of Brazil. Diferent cropping systems (crop rotation and monoculture; diferent winter cover crops in maize cropping systems) and tillage systems (no-tillage and conventional tillage) were evaluated. The soils at the experimental areas was sampled (0-10 cm) and evaluated regarding microbial attributes (C and N biomas, β-glucosidase and urease, metabolical quotient and soil respiration) and epidaphic fauna using pitfall tramps. Tillage systems have the principal effect on microbial and epiedafic fauna, while cropping systems have secondary effect. Tillage effect was more intense just after tillage operations, decreasing over the time. Grass cover-crops species have positive effects on epiedaphic fauna and microbial attributes linked to carbon, while legume cover-crops provide better conditions to microbial attributes linked to nitrogen. Crop rotations associated to no-tillage provides better environment to epidaphic fauna and soil microbial attributes.

Стилі APA, Harvard, Vancouver, ISO та ін.

19

Campos, Rafael Viegas. "Parâmetros genéticos para características lineares de tipo e produtivas em vacas da raça holandesa no Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/60494.

Повний текст джерела

Анотація:

O objetivo deste estudo foi estimar parâmetros genéticos e fenotípicos para 21 características lineares de tipo bem como a pontuação final e as características de produção de leite (PL), gordura (PG) e proteína (PP) em rebanhos de bovinos leiteiros da raça holandesa no Brasil. Os 18,5 mil registros utilizados neste estudo foram coletados por técnicos da Associação Brasileira de Criadores de Bovinos da Raça Holandesa entre os anos 1994 e 2004. As estimativas dos componentes de (co)variância e dos parâmetros genéticos e fenotípicos das características foram realizadas pelo método da máxima verossimilhança restrita livre de derivações por meio de modelos animal multicaráter. O processamento das análises com 22 características avaliadas simultaneamente foi realizado no Centro Nacional de Processamento de Alto Desempenho, São Paulo, através do ambiente operacional SGI Altix – 1350. As estimativas de herdabilidade para as características lineares de tipo variaram de 0,09 e 0,39 e para as PL, PG e PP variaram entre 0,17 e 0,24 indicando haver variabilidade genética aditiva suficiente para que ganhos genéticos moderados possam ser obtidos por seleção. As correlações fenotípicas entre as características lineares de tipo foram em geral positivas e de magnitude moderada, entretanto, as correlações genéticas variaram entre -0,44 e 0,85. As estimativas de correlações genéticas entre as características lineares de tipo com as características produtivas (PL, PG e PP) foram em geral de baixa magnitude. O antagonismo genético indesejável entre algumas características de tipo e produtivas deverá ser levado em consideração no momento da seleção, uma vez que a seleção para características produtivas pode levar à deteriorização de algumas características conformacionais. Quando o objetivo de seleção for melhorar as características lineares de tipo, a pontuação final poderá ser utilizada como critério de seleção por estar correlacionada geneticamente e de forma moderada com a maioria das características Entretanto, ao selecionar as vacas de maior pontuação final não se deve esperar aumento significativo no volume de PL, PG e PP, sendo a utilização de índices de seleção uma ferramenta indicada para o processo de seleção genética dos animais.
The objective of this study was to estimate genetic and phenotypic parameters for 21 linear type traits over the final score and milk yield traits (MY), fat (FY) and protein (PP) in herds of Holstein dairy cattle in Brazil. The 18,500 records used in this study were collected by staff of the Brazilian Association of Cattle Breeders of Holstein between 1994 and 2004. Estimates of (co)variance and genetic and phenotypic parameters were determined by the method of maximum likelihood derivative-free restricted through multiple trait animal models. The analyses were processed in Sao Paulo through the operating environment SGI Altix - 1350 provided by the National Center for High Performance. The heritability estimates between linear type traits ranged between 0.09 and 0.39 and between PL, PG and PP between 0.17 and 0.24 indicating there sufficient genetic variability to obtain moderate genetic gains by selection. The phenotypic correlations between linear type traits were generally positive and of moderate magnitude, however, genetic correlations varied widely between -0.44 and 0.85 indicating that some could be excluded from the classification linear system currently adopted by the ABCBRH. Estimates of genetic correlations between linear type traits and yield traits (PL, PG and PP) were generally of low magnitude. The genetic antagonism between some type traits and yield should be taken into account at the time of selection, since, in many Brazilian herd, less productive cows are discarded. When the goal is to improve the selection of linear type traits the final score can be used as a selection tool to be genetically and correlated moderately with the most features, however, when the selection criterion is not the final score expect significant improvements in the characteristics of PL, PG and PP, with the use of selection indices indicated a tool for the process of genetic selection of animals.

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Stiglingh, Danelle. "Practical wisdom gained from journeying with HIV : narrative therapeutic research." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/60424.

Повний текст джерела

Анотація:

Stories about HIV are everywhere. They are told (i.e. constructed), heard (i.e. taken in) and then re-told (i.e. shared). It is when we start asking questions about such stories, that new story "versions" become available; to be told, heard and possibly retold. Given the methodological boundaries connected to HIV research, few research studies are able to utilize the research context to venture beyond the mere collection (i.e. hearing) and re-telling (i.e. sharing) of story experiences. As a result, the hidden, alternative story "versions" which are "awakened" during the research process, may remain untold. Over the course of 4 months, the researcher utilized the existing dialogical space of the therapy context, as a practical platform for researching the dominant, as well as the "absent but implicit" meaning of HIV. Through ongoing dialogical interaction, this research journey set out, to not only hear the dominant stories told about HIV, but also to explore the hidden, preferred alternative story "versions". An adolescent girl living with HIV acquired through mother-to-child transmission, collaborated with the researcher to engage in this journey of therapeutic co-research. With this narrative report, I invite you to become an audience member to this unfolding journey. Throughout this report, I used the word "journey" as a guiding metaphor, situating the act of meaning making as a collaborative ongoing process of co-research, rather than a collection of facts. This research report is a narrative in itself and is subdivided into three parts. Part I includes all chapters written before my journey with the adolescent as co-researcher; part II includes all aspects related to our journey as co-researchers; and part III involves the time period after our journey as co-researchers. In part I, chapter 1, I introduce you to my way of speaking (i.e. narrative language), grounded in my way of seeing (i.e. social constructionist paradigm). In chapter 2, I shared with you my own narrative in making sense of HIV through personal reflective journal entries. By doing so, I acknowledge that I, researcher and therapist also tell stories about HIV through my statements, questions and everyday actions and interactions. In chapter 3, I reviewed academic literature in an attempt to research how adolescent HIV is "authored" (narrated) to the public by various academic discourses. In chapter 4, I reviewed narrative research studies of illness stories, relevant to adolescent HIV. Hereafter I stated my research question, justification, aim, and objectives. In chapter 5, I provide an overview of the research process, as was undertaken for the purpose this journey. In part II, I introduce you to "Gabby" (pseudonym), my co-researcher and co-author of this narrative report. Gabby regularly received ART at the paediatric out-patient unit at Kalafong Tertiary Provincial Hospital at the time of our interaction. In chapter 6, I describe the project phase (chapter6), alongside Gabby's participation. The project phase was situated within a narrative social constructionist frame. It consisted of two sub-phases as a means to transform the therapeutic context to one of therapeutic co-research. The first sub-phase stretched over the course of 3 months as Gabby participated in the Collaborative Storybook Development (CSD) project. The CSD project was based on the narrative therapeutic work of Freedman and Combs (1996) on story construction and development. Each session was video recorded for the purpose of co-reflective discussion during the second sub-phase. Focussed co-reflection sessions formed the second sub-phase, which took place once a week and stretched across an additional 1 month period. The aim of this sub-phase was to collaboratively review how storytelling was employed to make sense of HIV throughout the CSD project. Over the course of four months, the project phase allowed for in-depth co-research into the meaning of HIV. Part III documents the time period following our journey as co-researchers. Chapter 7 is a reintegration (telling) of the new knowledge and practical wisdom constructed during the project phase. Such "telling" is done in the form of a storybook. Chapter 8 sheds some light on the narrative practice of reincorporation (sharing). This involved the sharing of new knowledge with audiences outside of the co-research dyad. In chapter 9, I discussed the ethical considerations undertaken in this research. This is followed by a discussion on the shortcomings and limitations of this journey. Based on the practical wisdom gained from this journey, recommendations are made for future endeavours.
Mini Dissertation (MA)--University of Pretoria, 2016.
Psychology
MA
Unrestricted

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Van, Rensburg Thelma. "Uneasy bodies femininity and death : representing the female corpse in fashion photography and selected contemporary artworks." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/60434.

Повний текст джерела

Анотація:

This mini-dissertation serves as a framework for my own creative practice. In this research paper my intention is to explore, within a feminist reading, representations of the female corpse in fashion photography and art. The cultural theorist Stuart Hall's theories on the concept of representation are utilised to critically analyse and interogate selected images from fashion magazines, which depicts the female corpse in an idealised way. Such idealisation manifests in Western culture, in fashion magazines, as expressed in depictions of the attractive/ seductive/fine-looking female corpse. Fashion photographs that fit this description are critically contrasted and challenged to selected artworks by Penny Siopis and Marlene Dumas, alongside my own work, to explore how the female corpse can be represented, as strategy to undermine the aesthetic and cultural objectification of the female body. Here the study also explores the selected artists' utilisation of the abject and the grotesque in relation to their use of artistic mediums and modes of production as an attempt to create ambiguous and conflicting combinations of attraction and repulsion (the sublime aesthetic of delightful horror), thereby confronting the viewer with the notion of the objectification of the decease[d] feminine body as object to-be-looked-at. This necessitated the inclusion of seminal theories developed by the French theorist, Julia Kristeva (1982) on the abject and the Russian theorist, Mikhail Bakhtin (1968) on the grotesque.
Dissertation (MA)--University of Pretoria, 2016.
Visual Arts
MA
Unrestricted

Стилі APA, Harvard, Vancouver, ISO та ін.

22

Zandberg, Driana. "Evaluation of an emotional awareness programme for children in middle childhood in a private school in Pretoria Gauteng Province." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/60444.

Повний текст джерела

Анотація:

Emotional awareness refers to a person's ability to identify and describe one's emotions and the emotions of others. It assists people to manage and control their emotions and is an important skill underlying effective psychosocial functioning. Emotional awareness is a core component of emotional intelligence. For children, the capacity for emotional intelligence and emotional awareness can hold advantages such as enhancing their interpersonal and communication skills, academic performance, coping skills and self-esteem. Emotional awareness can thus assist children with their adjustment to and academic performance in school. Emotional awareness is regarded as a skill that can be taught to children. The goal of this study was thus to evaluate an emotional awareness programme that was developed for children in middle childhood within the educational setting (Knoetze, 2012). The study was based on a quantitative research approach. A quasi-experimental comparison group pre-test post-test research design was followed, according to which the effect of the programme could be determined by comparing pre-test and post-test data of an experimental and a comparison group. The respondents were children in middle childhood attending a private school for learners with learning disabilities. A standardised measuring instrument, the Levels of Emotional Awareness Scale for Children (LEAS-C) was used to collect data.
Mini Dissertation (MSW)--University of Pretoria, 2016.
Social Work and Criminology
MSW
Unrestricted

Стилі APA, Harvard, Vancouver, ISO та ін.

23

Nkadimeng, Manangane S. "Kanegelohistori le nonwanepheteletsannete ka tebelelo ya Sepedi." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/60404.

Повний текст джерела

Анотація:

The study addresses the problem, already identified in 1986 by Msimang that definitions such as Bascom's (1965) fail to differentiate clearly between historical narratives and legends. To evolve a more accurate definition, this study considers two Sepedi dramas: Make's Sello sa Tonki le Pere and Moloma's Marangrang (1972). The qualitative approaches (explain, interpret and compare) used in this study show that legends and historical dramas/narratives can be investigated by comparing them to identify differences between these genres. A narratological model suggested by Marggraff (1994) is used, considering three strata (layers) of a text: content, plot and style of writing. The topic, theme and atmosphere are explored, in that order, in the selected texts. The analysis suggests that the differences between a legend and a historical drama/novel arise from two elements: characters and their actions. In a legend, there are three important pillars: the exposition, the body and the conclusion. The exposition of a legend has five formulaic features: Kgalekgale [long, long ago ], Keleketla [Give us more!], E rile e le nonwane [It is a tale ], and a reference to the narrator (Nonwanenonwane!) and the listeners (Keleketla!). Some sentences/phrases are repeated slightly or without a reply. The action ends with a concluding formula: Se seo sa mosela seripa! [That is the end of the tale]. The action focuses on a main character, and there may be some repetition of actions (a cycle). The time technique may be used. There is often symbolism. Other features include a song (repeated several times), which brings pleasure and/or pride, and sometimes sorrow. A song may play a role bigger than the narrative. The presence of these factors suggests a legend rather than a historical narrative. The investigation shows that Make does not follow these rules for a legend, but elides actions he thinks the audience/reader already knows, inviting the audience/reader to participate in the narration. That implies that both the narrator and the audience know the 'rules' of a legend Make seems aware that the exposition and conclusion of a legend are based on the use of repetition of formula (a clause, sentence or sentence cluster). In legends, the characters tend to be flat (not rounded) they are interpreted focusing on one idea only (using a phrase or short sentence), which is not a complete depiction of the character. Often the author exaggerates to create humour. This study confirms that flat characters are typical of legends, adding to the artistic structure of this genre. Make successfully uses three techniques (the cycle and journey techniques, and symbolism) in constructing Sello sa Tonki le Pere. A cycle is visible in the repetition of the prosecution of Tonki and Pere to illuminate their case, strengthening and simplifying the sentencing of those animals. Make compares life to a linear journey with a beginning (birth) and a conclusion (death). The phases of the journey symbolise stages of a human life. Make used animals as symbolic characters in this drama to represent real people. Tonki and Pere represent criminals. Kgomo and Nku fight for justice for those mistakenly judged guilty of witchcraft, and they represent the accused. Tau's household represents the capital (Judgement), while Kubu's household represents medicine. A legend should end with a concluding formula: 'Mpho se seo sa mosela seripa!', showing readers/listeners that they can relax, as the narration/fable has come to an end. Make does not use this formula, but ends his fable with 'Pula! Pula! Pula!!'. To explore the structure of a historical drama/narrative, Maloma's drama Marangrang was considered, focusing on the exposition, development, climax and denouement of the drama. In the exposition of Marangrang conflict between Mapulana's children Lethoke, T iane and Madikgake (Mokone of Ma a) who argue over traditional healing (and bravery). This plot suggests the presence of the shadow technique (a shadow focuses on the actions of a character which are similar to actions of another character to be introduced later in the play) (Mojalefa, 1997:35). As a traditional healer Lethoke is a shadow for Marangrang; he stands for Marangrang's actions. By contrast, Madikgake stands for all the tribes. This foreshadows conflict between Marangrang and the Bakgatla, Ma abela, Magolego, Mphahlele tribes. This conflict appeals to the audience/readers, who want to unravel these issues/themes.
Dissertation (MA)--University of Pretoria, 2016.
African Languages
MA
Unrestricted

Стилі APA, Harvard, Vancouver, ISO та ін.

24

Reyneke, Pierre. "Dumpsite bricolage : the responses of the urban waste precariat to the formalisation and privatisation of waste management in the City of Tshwane." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/60414.

Повний текст джерела

Анотація:

This dissertation examines how sections of the urban waste precariat, positioned in the City of Tshwane, responded to the formalisation and privatisation of the waste management system by the city's public authorities. Focusing on two landfill sites, it consists of an ethnographic description and analysis of the nexus between waste makers, waste governors and the waste precariat, including waste-pickers. Drawing on multiple theoretical perspectives, the ethnography brings to light aspects and dynamics of the waste management system which are invisible to the waste governors. These include a typical instance of "accumulation by dispossession" (Harvey 2004, Samson 2012), which involved the closure of three municipal landfill sites and the relocation of a section of the city's waste precariat to other landfill sites, as the state sought to capture the value of the waste generated by the waste makers in the city. Moreover, the closure of one landfill site located in the midst of a wealthy suburb also shows how this process of dispossession is constructed on older distinctions of race and class (Malan 1996, Ballard 2004). As those sections of the waste precariat move to another landfill they are confronted with new dynamics which include access to soft waste being controlled by an established waste-picker committee and city-supported cooperatives that have formed an alliance with the waste governors. As a result, the 'newcomers' are pushed into fringe recycling. This thesis contributes to the debate around the formalisation of waste picking in demonstrating how the process of formalisation, often pushed for and initiated by third sector organisations (Alexander 2009), engenders the exclusion of fringe recycling practices. As such this thesis contributes to a gap in the literature on fringe recycling, in the process also working towards portraying waste-pickers as a differentiated group. In theorising fringe recycling as part of the broader response of the waste precariat to formalisation and privatisation, this thesis deploys the concept of bricolage (Levi-Strauss 1966) in order to make sense of the creative and autonomous actions implied in improvisation. This emphasis on improvisation and creativity pushes the thesis into a consideration of 'things' (Ingold 2010) and the processes of formation, flows and the transformation of materials. Tracing the complex lines of flow and entanglement that exists between people and things in the context of landfill sites gives credence to the idea of a thing as a "gathering together of the threads of life" (Ingold 2010:2-3) and challenges our established understanding of agency and indeed the effort by Appadurai (1986) to theorise value through tracing 'the social life of things'.
Dissertation (MSocSci)--University of Pretoria, 2016.
Anthropology and Archaeology
MSocSci
Unrestricted

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Greyling, Elsje. "The applicability of the Theory of Planned Behaviour to choosing a career as a rural physician in South Africa." Thesis, University of Pretoria, 2016. http://hdl.handle.net/2263/60494.

Повний текст джерела

Анотація:

The public health system of South Africa faces a number of serious human resources challenges. The shortages, inequity and maldistribution of physicians across various geographical areas and health employment sectors are aggravated by the migration of skills within and from South Africa to urban areas, the private medical sector and to other countries which are perceived to be offering better career prospects and quality of living. Rural health facilities in South Africa experience particular challenges to attract and retain health professionals, as very few physicians choose careers in rural medicine. This scenario gave rise to the problem statement of the study which set out to explore the complex process of career intentions and decision making by medical graduates with a specific focus on choosing a career as rural physician. Many studies have investigated the factors that influence the attraction and retention of physicians in rural areas, both internationally and in South Africa, however, a comprehensive literature review revealed that none of these research studies employed a theoretical model to interrogate career decision making. In this study, the Theory of Planned Behaviour (TPB) was applied to investigate and compare the intentions of two research groups to choose a career as a rural physician in the South African public service. The study involved an interpretive qualitative research method which is uncommon in typical research applied to test the TPB. Data was collected from undergraduate medical students (n=22) and qualified general practitioners (n=21) to determine the following aspects: their beliefs regarding the outcomes of choosing a career as rural physician, as well as the importance and associated benefits of these outcomes; to determine the impact of demographic variables and TPB background factors in the prediction of a career choice as a rural physician; to establish whether the core and extended variables of the TPB account for differences in the career choice to become a rural physician between the two research groups; and to determine whether the TPB can be applied using a qualitative research methodology. ATLAS.ti was utilised for the purposes of data analysis which involved open and axial coding and the generation and evaluation of research findings. In this study, open codes typically represented the "salient beliefs" of study participants regarding the expected outcomes, expectations or feelings related to background or informational variables of the TPB. The "groundedness" concept of ATLAS.ti was used as a proxy to determine the subjective value of salient beliefs. Criteria for credibility, transferability, dependability and confirmability were applied and demonstrated. The study contributes to the fields of vocational and social psychology by demonstrating that the TPB can be applied in a qualitative research design. In addition, the study offers a viable and objective method to test TPB constructs for the purposes of career theory development in a diverse and complex South African context, thus enhancing the body of knowledge in career and social psychology. The constructs of the TPB in its extended form contributed to the development of a practical framework that creates a better understanding of beliefs and behaviour of medical students and physicians as well as inform interventions aimed at influencing or changing their behaviour, particularly with regard to choosing a career in rural health. Themes for future research include expanding the boundaries of the "career" concept; unpacking careers in medicine and current perceptions of South African medical students regarding future career prospects and expanding TPB studies to include more background factors such as emotions, personality traits, value systems and media exposure, particularly exploring the impact of social media on career decision-making.
Thesis (PhD)--University of Pretoria, 2016.
Human Resource Management
PhD
Unrestricted

Стилі APA, Harvard, Vancouver, ISO та ін.

26

浜田, 道代, та Michiyo Hamada. "検証・会社法改正：実態調査報告(<調査報告>)". 名古屋大学大学院法学研究科, 2004. http://hdl.handle.net/2237/6044.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

27

Aparicio, Bádenas Conrado. "Tratamientos de superficie sobre titanio comercialmente puro para la mejora de la osteointegración de los implantes dentales." Doctoral thesis, Universitat Politècnica de Catalunya, 2005. http://hdl.handle.net/10803/6044.

Повний текст джерела

Анотація:

El éxito clínico de los implantes dentales, fabricados en titanio comercialmente puro (Ti c.p.), está basado en la consecución de la osteointegración, es decir, la conexión directa estructural y funcional entre el hueso vivo, ordenado, y la superficie del implante. La mejora de la osteointegración a corto y largo plazo es función de múltiples factores, de entre los cuales, la calidad superficial del implante (fisicoquímica y topográfica) es de gran importancia. De hecho, todas las interacciones biológicas y mecánicas que se dan entre el implante y los tejidos circundantes son a través de la interfaz creada entre dichos tejidos y la superficie del material implantado.

En este trabajo se estudian y desarrollan distintos tratamientos aplicados sobre la superficie de los implantes dentales con el objetivo final de obtener implantes con una mejor osteointegración, tanto a corto como a largo plazo.

En la primera parte se obtienen superficies rugosas por medio del tratamiento del granallado.

La rugosidad de las superficies de Ti c.p. granalladas depende no sólo del tamaño de las partículas abrasivas de proyección empleadas (125 - 300 m; 425 - 600 m; 1000 - 1400 m), sino también de su naturaleza química (Al2O3, SiC, TiO2 y ZrO2) y su forma. Esta rugosidad se debe cuantificar con, al menos, dos parámetros, uno de altura (Ra) y otro de espaciado (Pc). Además, cualquiera que sea la naturaleza química de las partículas empleadas, quedan restos de las mismas sobre las superficies tratadas. Con estas premisas, las propiedades de la superficie del Ti c.p. granallado se han podido optimizar, ya que la respuesta de adhesión y diferenciación de los osteoblastos está influenciada por la rugosidad y la naturaleza de las partículas de proyección. Además, aunque el aumento de rugosidad y las tensiones residuales que se inducen con el granallado influyen sobre el comportamiento electroquímico del material, éste es adecuado con respecto a su resistencia a la corrosión, de acuerdo a su posible utilización como material para la fabricación de implantes dentales.

En la segunda parte se obtienen superficies rugosas y bioactivas por medio de un tratamiento en dos pasos: en primer lugar se granalla el implante (con las condiciones óptimas determinadas en la primera parte); y después se aplica un tratamiento termoquímico. El tratamiento termoquímico consiste en atacar el metal con NaOH y obtener en su superficie un gel hidratado de titanato de sodio. Este gel se deshidrata y densifica con un tratamiento térmico a 600 oC. En estas condiciones, el Ti c.p. es bioactivo.

Las superficies de Ti c.p. granalladas con Al2O3 y tratadas termoquímicamente, demuestran su potencial bioactividad porque hacen crecer por vía química in vitro, sobre su superficie, una capa de apatita; y la confirman, al crecer también in vivo. Sin embargo, la presencia de los restos de partículas de SiC sobre la superficie del metal inhibe su bioactividad. Estas superficies rugosas y bioactivas se estudian de forma comparativa, in vitro e in vivo, con otras no rugosas y/o bioinertes. La respuesta de diferenciación de los osteoblastos y la osteointegración a corto y medio plazo se ven favorecidas por la combinación sinérgica de la rugosidad y la bioatividad del metal. Como consecuencia, los implantes rugosos y bioactivos son candidatos preferenciales para ser utilizados en los procedimientos clínicos de carga inmediata.

Стилі APA, Harvard, Vancouver, ISO та ін.

28

Muller, Kurt W. "Analysis of a semi-tailless aircraft design." Thesis, Monterey, California. Naval Postgraduate School, 2002. http://hdl.handle.net/10945/6044.

Повний текст джерела

Анотація:

Approved for public release; distribution is unlimited
Many unique aircraft configurations came out of Germany in World War II, one of these was the Blohm and Voss BV P 208. By using longitudinal and directional control surfaces located outboard of the wing tips they are removed from the downwash of the main wing. Additionally, the result is fewer component surfaces with less total surface area, thereby reducing both friction and interference drag and manufacturing cost. The configuration should lend itself well to low-observability, making it a good stealth candidate. The P 208, provided the author an opportunity to analyze an unconventional configuration with the conceptual NASA design codes RAM, VORVIEW, and ACSYNT. A lack of wind tunnel or flight data prevented the evaluation of the performance of these codes for this configuration. However, results are presented for future comparison and evaluation. Claims of aerodynamic benefits of the P 208 configuration appear largely to be verified. The P 208 suffers from poor natural short-period longitudinal stability and an unstable Dutch-roll, neither of which are beyond the means of artificial control. The most immediate need for future work is a structural analysis and determination as to the structural and dynamic feasibility of the configuration.

Стилі APA, Harvard, Vancouver, ISO та ін.

29

Chrysanthakopoulos, Georgios. "A fuzzy-logic autonomous agent, applied as a supervisory controller in a simulated environment /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/6044.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

30

Zhu, Liang. "Semiparametric analysis of multivariate longitudinal data." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/6044.

Повний текст джерела

Анотація:

Thesis (Ph. D.)--University of Missouri-Columbia, 2008.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 3, 2009) Vita. Includes bibliographical references.

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Ordaz, Sanchez Lucy. "A Mexican Woman's Journey in Becoming a Successful American Educator." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/6044.

Повний текст джерела

Анотація:

This self-study explores the question of "What factors in my life shaped my journey in earning an American college degree and becoming a successful educator in the U.S.?" This question is explored in the context of my own lived experiences. Results contribute to the field of immigrant studies and may encourage others who wish to transition from first generation immigrant to successful professional educator in the U.S. This study employed hermeneutic phenomenology to answer the research question. It used in-depth narrative interviews to elicit my responses to lived experiences from growing up in Mexico to my current teaching position. Thematic analysis was used to summarize and interpret the data. Data analysis yielded six themes that describe my journey to becoming a teacher in the U.S.: family influence, vision of life, role models, challenges, sources of support, and inner strength. Findings reaffirm the belief that it is possible for an individual who has recently immigrated to the United States and who may have experienced aspects of structural inequality to surmount difficult circumstances and achieve important life goals.

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Katete, Christopher Dominic. "Social capital and community-led management of rural water schemes: Evidence from Mulundu Community Managed Water Scheme in Luapula Province of Zambia." University of the Western Cape, 2017. http://hdl.handle.net/11394/6044.

Повний текст джерела

Анотація:

Magister Artium (Development Studies) - MA (DVS)
The main objective of this study was to assess the contribution of social capital to community-led management of water schemes - using the Mulundu Community Managed Water Scheme in Luapula Province of Zambia - with the view to provide appropriate conclusions and recommendations on how water schemes can more viably be managed. This came in the backdrop of mixed evidence regarding success of community managed water schemes in Zambia and elsewhere.

Стилі APA, Harvard, Vancouver, ISO та ін.

33

Quadros, Gisela Adriana Siqueira de. "Mudança estratégica na Cotrijal : um estudo de caso das influências dos seus stakeholders a partir do cubo da mudança." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2004. http://hdl.handle.net/10183/6044.

Повний текст джерела

Анотація:

Nesse contexto, constatou-se que os associados, os clientes, concorrentes, fornecedores, funcionários, instituições e o governo (em todos os seus níveis) tiveram forte influência neste processo, além de poder afirmar-se que existem, ainda, outros stakeholders que, muitas vezes, não influenciaram o processo de mudança, pois desconheciam e/ou não exerciam seu poder, sua legitimidade e sua urgência. Esta pesquisa teve como objetivo descrever as mudanças estratégicas ocorridas na Cotrijal – Cooperativa Agropecuária, situada na cidade de Não Me Toque, Estado do Rio Grande do Sul – durante os anos de 1993 a 2003, bem como os stakeholders influentes neste processo (de mudanças), a partir da percepção da coalizão dominante. Para tanto, a estratégia de pesquisa empregada foi o estudo de caso, com caráter exploratório e qualitativo, dentro de uma visão longitudinal e histórica. Os dados primários foram coletados através de entrevistas semi-estruturadas com a coalizão dominante. Já, os dados secundários foram provenientes de documentos da organização, revistas, jornais e sites especializados. As mudanças ocorridas na Cooperativa foram organizadas em sete períodos estratégicos, os quais refletiram estágios diferentes nas estratégias da Cotrijal. Após a definição dos períodos, analisaram-se e classificaram-se os principais stakeholders do processo de mudança estratégica da Cooperativa – a partir do Cubo da Mudança – e sua influência na definição e formulação das mudanças estratégicas (Continua).

Стилі APA, Harvard, Vancouver, ISO та ін.

34

Stout, Trinity L. "Development and Application of Hydraulic and Hydrogeologic Models to Better Inform Management Decisions." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6044.

Повний текст джерела

Анотація:

Water is one of the most important and limited resources in regions with little rainfall. As populations continue to grow, so does the need for water. Individuals in water management positions need to be well informed in order to avoid potential negative effects concerning the overall quality and amount of water available for both people and the environment. In order to provide better information for these individuals, computer models and mathematical relationships are commonly developed to estimate the outcome of different situations regarding surface water and groundwater. Along these lines, this study focused on two modeling studies that provide information to managers regarding either stream restoration techniques or the amount of groundwater available. The first study investigated the effects that beaver dams have on streams. In order to do this, a computer model was developed to represent a section of stream with beaver dams and a section without. The model provided information regarding changes in the average depth, width, and velocity of the stream as a result of having beaver dams. We also measured changes in sediment size distributions between the two stream sections to confirm that beaver dams additionally impact sediment movement and channel shape. Results indicated that only a few dams are actually needed to achieve many of the desired changes in stream restoration. The second study involved testing an equation that was used to predict how much precipitation would become groundwater in a Midwestern watershed. Variables in the equation included measurements of natural or developed land, movement of water through soil, the depth of the water table, and hillslope steepness. We tested the equation in two western watersheds to determine if variables used in the earlier study remain relevant when applied under different conditions. The independent application of the method to each western watershed stressed the importance of meeting simplifying assumptions and developing more complete datasets. We also found that the application of existing simplified empirical relationships may not be suitable in estimating groundwater recharge in mountain watersheds.

Стилі APA, Harvard, Vancouver, ISO та ін.

35

Henry, Camilla. "Strategies to Reduce Information Technology Employee Absenteeism in the Manufacturing Industry." ScholarWorks, 2018. https://scholarworks.waldenu.edu/dissertations/6044.

Повний текст джерела

Анотація:

Employee absenteeism costs organizations billions of dollars annually in losses in revenue and productivity, temporary labor costs, and low morale. The purpose of this qualitative single case study was to explore the strategies information technology (IT) managers in the manufacturing industry used to reduce employee absenteeism. The theory of planned behavior provided the conceptual framework for the study. Data collection included semistructured interviews with 5 IT managers in Maryland and a review of organizational documents addressing nutritional education information, employee participation rates in health programs, and physical activity. Data were analyzed using compilation, disassembly, reassembly, interpretation, and development of conclusions. Through thematic analysis, 4 themes emerged: workplace wellness and health programs, employee engagement, work-life balance programs, and organizational culture. Findings of this study may be used by IT managers to bring about positive change by reducing employee absences, encouraging employment opportunities, contributing to organizational sustainability, and improving quality of life for community members.

Стилі APA, Harvard, Vancouver, ISO та ін.

36

Liu, Jin. "ESTIMATING KNOTS IN BILINEAR SPLINE GROWTH MODELS WITH TIME-INVARIANT COVARIATES IN THE FRAMEWORK OF INDIVIDUAL MEASUREMENT OCCASIONS." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/6044.

Повний текст джерела

Анотація:

Longitudinal studies of change abound in the fields of epidemiology and public health to evaluate individual growth over time. Analyzing this type of data poses various interesting statistical challenges. Our motivating dataset in this project arises from an osteoarthritis study, where the change patterns of the metrics of interested are theorized to be in two phases. The aim is to identify an individual inflection point (i.e., knot) for each patient's trajectory corresponding to their short-term and long-term recovery periods from treatment. In addition, since we cannot directly observe which subpopulation a patient belongs to, we need to group and label those trajectories (into good and poor outcome groups) and identify patient-level characteristics associated with those labels. Finally, we must account for the varying time points at which patients are observed. There are two main objectives of this dissertation. The first objective is to investigate the characteristics of nonlinear change patterns with an unknown knot for a single population. For Aim 1, we developed a pair of bilinear spline growth models with time-invariant covariates (BLSGMs-TICs) to estimate a knot and its variability as well as to investigate predictors of individual trajectories with the individual-varying time points (ITPs). Our simulation studies demonstrated that the proposed BLSGMs-TICs were capable of estimating and testing the knot variance while correctly controlling for type I error rates. More importantly, the estimated parameters were unbiased, precise, and exhibited appropriate confidence interval coverage.

Стилі APA, Harvard, Vancouver, ISO та ін.

37

Moiloa, Peter Mokhele. "Ancestors in African religion : a comparative study of the role of ancestors in the Sotho and Nguni worship and religious ethics." Master's thesis, University of Cape Town, 2003. http://hdl.handle.net/11427/6044.

Повний текст джерела

Анотація:

Bibliography: leaves 118-122.
Belief in ancestral spirits among the Africans has always aroused a hot debate among scholars of African Religion. To a great number of scholars this belief seems to have been exaggerated. The fact that Africans speak more about their ancestors than about God has led some scholars into thinking that God has no place in African Traditional Religion.They argue that God is not worshipped in African Traditional Religion.

Стилі APA, Harvard, Vancouver, ISO та ін.

38

Sayeh, Mohamed. "Le développement national marocain et l'industrie mondiale des phosphates." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/6044.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

39

Verbyla, Matthew Eric. "Pathogen Removal in Natural Wastewater Treatment and Resource Recovery Systems: Solutions for Small Cities in an Urbanizing World." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/6044.

Повний текст джерела

Анотація:

Sanitation, renewable energy, and food security are among the most pressing global development needs of the century, especially for small cities with rapid population growth. Currently, 53% of the world’s population either lacks access to improved sanitation or discharges fecal waste to the environment without treatment. Furthermore, 80% of food consumed in developing regions is produced by 500 million small farms, and while many of them are still rain-fed, irrigated agriculture is increasing. The post-2015 Sustainable Development Goals, recently adopted by the United Nations, include targets to address the water-energy-food nexus. Wastewater reuse in agriculture can be an important solution for these goals, if it is done safely. Globally, 18 – 20 million hectares of agricultural land are irrigated with wastewater, but much is untreated, unregulated, or unsanctioned, causing concerns and uncertainty about health risks. There is a need to better understand pathogen removal in natural and non-mechanized wastewater treatment systems, such as waste stabilization ponds (WSPs) and upflow anaerobic sludge blanket (UASB) reactors, which are commonly used in small cities and towns. Riverbank filtration (RBF) is also a natural technique used by farmers in developing countries to treat surface water polluted with untreated sewage, but pathogen removal in these systems has seldom been assessed in developing countries. The focus of this dissertation is on pathogen removal in natural and non-mechanized wastewater treatment and reuse systems, to evaluate the health implications of water reuse for irrigation, with the following three objectives: 1) assess the current understanding of virus removal in WSP systems through a systematic review of the literature; 2) measure the removal of viruses and their association with particles in systems with WSPs, UASB reactors, or both; and 3) assess the fate and transport of pathogens and fecal indicators in wastewater treatment systems with direct and indirect reuse for irrigation to estimate microbial risks. To advance the understanding of virus removal in WSP systems, a comprehensive analysis of virus removal reported in the literature from 71 different WSP systems revealed only a weak to moderate correlation of virus removal with theoretical hydraulic retention time (HRT). For each log10 reduction of viruses a geometric mean of 14.5 days of retention was required, but the 95th percentile of the data analyzed was 54 days. Also, whereas virus-particle association and subsequent sedimentation has been assumed to be an important removal mechanism for viruses in WSPs, the literature review revealed a lack of evidence to confirm the validity of this assumption. The association of human adenovirus (AdV) with wastewater particles was assessed in five full-scale wastewater treatment systems in Bolivia, Brazil, and the United States (two with only WSPs, two with a UASB reactor and WSPs, and one with only UASB reactors). A mesocosm study was also conducted with WSP water from one of the full-scale systems, and some samples were also analyzed for pepper mild mottle virus (PMMoV), F+ coliphage, culturable enterovirus (EV), norovirus (NoV), and rotavirus (RV). Results indicate that WSPs and UASB reactors affect virus-particle associations in different ways, which may differ for different viruses. In UASB reactor effluent, PMMoV was more associated with particles <180 >µm, showed no indication of settling in subsequent ponds, and appeared to degrade in pond sediments after 5 days. In contrast, AdV in UASB reactor effluent was associated with small and large particles, and in subsequent ponds, particle-associated AdV showed evidence of possible settling or more rapid decay at the water surface. AdV and culturable EV were also more volumetrically-concentrated in UASB reactor sludge than they were in untreated sewage, WSP water, UASB effluent, and WSP sediments, indicating that the reactors may cause these viruses to become entrapped and concentrated in granular sludge. Some viruses may be removed in the sludge, but others exit the reactors in solution and attached to particles. The resuspension of pellets from centrifuged UASB reactor sludge samples in an eluant buffer indicated reversible AdV association with granular sludge, but some associations with particles in solution may not be reversible. The fate and transport of pathogens and fecal indicators was assessed in Bolivia for two WSP systems with direct reuse for irrigation, and one on-farm RBF system used to treat surface water polluted by untreated sewage. In the WSP systems, despite HRTs of 10 days, pathogen and fecal indicator removal was generally ≤1-log10, possibly due to overloading and short-circuiting from sludge accumulation. The RBF system provided removals on the order of 2-log10 for protozoan parasites, 3-log10 or more for viruses, and 4-log10 or more for bacteria. The use of RBF also reduced cumulative estimated health burdens associated with irrigated lettuce. Irrigation of lettuce with untreated river water caused an estimated disease burden that represents 37% of the existing burden from acute diarrhea in Bolivia; when RBF was used, this decreased to only 1.1%, which is not epidemiologically-significant, and complies with the World Health Organization guidelines. Ratios of concentrations of microorganisms in irrigation water to their respective concentrations in soil or crops were calculated, to assess transfer from irrigation water to soil or crops. These ratios (with units mL g-1) were generally < 0.1 mL g-1 for coliphage, between 1 and 100 mL g-1 for Giardia and Cryptosporidium, and generally between 100 and 1,000 mL g-1 for helminth eggs. Higher ratios could indicate more efficient transfer from water to soil or crops, longer persistence in soil or on crops, or slower leaching away from soil or crops. The results from this research demonstrate that pathogen removal in full-scale natural wastewater treatment systems happens via complex mechanisms that vary with respect to pathogen type, treatment systems configuration, and other environmental and operational parameters. Future research and innovation efforts should focus on the use of a combination of natural and non-mechanized technologies, surface-flow systems (e.g., WSPs) and subsurface systems (e.g., RBF), applied at both semi-centralized (e.g., wastewater treatment plant) and decentralized levels (e.g., on farms), to evaluate how this affects the efficiency and resiliency of pathogen removal. Also, future research is needed to further elucidate reasons for the observed differences in virus-particle associations in natural wastewater treatment systems.

Стилі APA, Harvard, Vancouver, ISO та ін.

40

Mirecka, Martyna. ""Monarchy as it should be"? : British perceptions of Poland-Lithuania in the long seventeenth century." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/6044.

Повний текст джерела

Анотація:

Early modern Poland-Lithuania figured significantly in the political perceptions of Europeans in the long seventeenth century – not only due to its considerable size and enormous commercial and military resources, but also, and just as importantly, due to its exceptional religious and political situation. This interest in Poland-Lithuania was shared by many Britons. However, a detailed examination of how Britons perceived Poland-Lithuania at that time and how they treated Poland-Lithuania in their political debates has never been undertaken. This thesis utilises a wide range of the previously neglected source material and considers the patterns of transmission of information to determine Britons' awareness of Poland-Lithuania and their employment of the Polish-Lithuanian example in the British political discourse during the seventeenth century. It looks at a variety of geographical and historical information, English and Latin descriptions of Poland-Lithuania's physical topography and boundaries, and its ethnic and cultural make-up presented in histories, atlases and maps, to establish what, where and who Poland-Lithuania was for Britons. Poland-Lithuania's political framework, with its composite structure and unique relationship between the crown and nobility, elicited a spectrum of reactions, and so this thesis evaluates the role that both criticism and praise of Poland-Lithuania played in British constitutional debates. Consequently, the study argues that Britons' perceptions of Poland-Lithuania were characterised by great plasticity. It claims that Britons' impressions of the country were shaped by multiple – real or imagined - borders, whether cultural, economic or political, but also that Britons were affected by the exposure to a uniform, idealised historiography of this country. Crucially, the thesis asserts that references to Poland-Lithuania constituted an ingenious ideological and polemical device that was eagerly used throughout the period by Britons of diverse political sympathies. Moreover, through the examination of the kingdom's geopolitical role, particularly its fluctuating position as a “bulwark of Christendom”, side by side its engagement against Protestants, the thesis challenges the assumption that anti-Catholicism dominated seventeenth-century British perceptions of the world.

Стилі APA, Harvard, Vancouver, ISO та ін.

41

Lagarto, Jorge Miguel Raposeira. "Acceleration of physics simulation engine through OpenCL." Master's thesis, Faculdade de Ciências e Tecnologia, 2011. http://hdl.handle.net/10362/6044.

Повний текст джерела

Анотація:

Dissertação para obtenção do Grau de Mestre em Engenharia Informática
Nowadays, physics simulation is a relevant topic in several domains, from scientific areas like medicine to entertainment purposes such as movie’s effects, computer animation and games. To make easier the production of faster simulations, developers are using physics engines because they provide a variety of features like rigid and deformable body simulation, fluids dynamics and collision detection. Computer game and film industries use increasingly more physics engines in order to introduce realism in their products. In these areas, speed is more important than accuracy and efforts have been made to achieve high performance simulations. Besides faster physical simulation algorithms, GPUs’ performance improvement in the past few years have lead developers to transfers heavy calculation work to these devices instead of doing it in the Central Processing Unit (CPU). Some engines already provide GPU implementations of several key features, particularly on rigid body collision detection. In this work we want to accelerate a feature present in most of the current physics engines: cloth simulation. Since collision detection is one of the major bottlenecks in this kind of simulation,we will focus specifically in improving this phase. To achieve a considerably speed-up we plan to exploit the massive parallelism of the Graphics Processing Unit (GPU) by designing an efficient algorithm using the Open Computing Language (OpenCL) framework. Finally,a study will be made to compare the performance of a sequential CPU approach against the parallel GPU proposed solution.

Стилі APA, Harvard, Vancouver, ISO та ін.

42

Davila, Maria Angélica Ojeda. "Adjustment coefficient for excess of loss reinsurance with reinstatements." Master's thesis, Instituto Superior de Economia e Gestão, 2013. http://hdl.handle.net/10400.5/6044.

Повний текст джерела

Анотація:

Mestrado em Ciências Actuariais
In this dissertation we present a general procedure for the calculation of the adjustment coefficient of the retained risk for an excess of loss reinsurance with reinstatements, when there is no aggregate deductible, following the model studied by Sundt (1991). We study how to calculate the initial reinsurance premium for this kind of contracts, when there is an aggregate layer, under different premium principles such as pure premium, expected value premium, standard deviation premium and the proportional hazard premium principles. In order to calculate the insurer’s adjustment coefficient we need to find the joint distribution of the insurer’s total claims and the aggregate claims of the reinsurer, considering an excess of loss reinsurance contract without reinstatements. For this reason, we study the bivariate Panjer’s recursion developed by Sundt (1999). Numerical examples, including selection of the optimal layer, are discussed in this dissertation.

Стилі APA, Harvard, Vancouver, ISO та ін.

43

Huiman, Morales Richard Henry. "Análisis de la regresión cuantílica para la distribución del ingreso total mensual de la población económicamente activa ocupada de Lima Metropolitana." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2016. https://hdl.handle.net/20.500.12672/6044.

Повний текст джерела

Анотація:

El documento digital no refiere asesor
Aplica el método de la regresión cuantílica como un método alternativo de estimación de los parámetros en los modelos de regresión lineal para analizar la distribución del ingreso total mensual de la población ocupada de Lima Metropolitana. Estima los parámetros de un modelo de regresión clásica mediante el método de Mínimo Cuadrados Ordinarios (MCO), sin embargo este provee poca información acerca del comportamiento de los extremos (colas) de la distribución del ingreso total mensual. En este caso, no es adecuado utilizar el modelo de regresión lineal estimado por mínimos cuadrados ordinarios, ya que proporciona estimaciones sesgadas. Concluye que existe una influencia positiva del nivel educativo y el sexo masculino en el ingreso total mensual de la población ocupada de Lima Metropolitana.
Trabajo de suficiencia profesional

Стилі APA, Harvard, Vancouver, ISO та ін.

44

Etheridge, Thomas James. "Application of photoactivated localisation microscopy to visualising eukaryotic DNA replication processes." Thesis, University of Sussex, 2016. http://sro.sussex.ac.uk/id/eprint/60404/.

Повний текст джерела

Анотація:

DNA replication is a crucial process that ensures duplication of the genome prior to cellular division. The fidelity of this process is of upmost importance for ensuring genomic stability and the integrity of subsequent generations. Obstruction of the replication machinery by DNA damage, protein barriers or other impediments can cause replication stress, a phenotype often observed in cancer cells. Studying the underlying molecular mechanisms of DNA replication and the repair processes involved during replication arrest is thus critical to ensure a complete understanding of the process and the role it plays in cancer development and progression. A key technique used to study DNA replication and repair proteins is fluorescence microscopy, which allows researchers to visualise the expression and spatial organisation of cellular components. Until recently, the information that could be extracted from fluorescence images was restricted by limited resolution, a consequence of the diffraction of light. Recent advancements in fluorescence microscopy have yielded techniques that can break this diffraction barrier and achieve nanometre scale resolution. One such technique is Photoactivated Localisation Microscopy (PALM), which relies on the detection and high precision localisation of single fluorescent molecules. The work presented in this thesis outlines the development of an adaptation to PALM that can be used to study the chromatin association of proteins inside unfixed cells. This technique was subsequently used to study the role of ubiquitination of the replication-sliding clamp during unperturbed DNA synthesis and characterise the global DNA binding of the Smc5/6 complex during replication stress.

Стилі APA, Harvard, Vancouver, ISO та ін.

45

Буряк, Анна Володимирівна, Анна Владимировна Буряк, and Anna Volodymyrivna Buriak. "Problems of bank performance evaluation in conditions of the crisis." Thesis, Українська академія банківської справи Національного банку України, 2009. http://essuir.sumdu.edu.ua/handle/123456789/60444.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

46

Лега, Н. Ю. "Фінансові аспекти розвитку соціального комплексу міста в умовах ринкової економіки". Thesis, Українська академія банківської справи Національного банку України, 2007. http://essuir.sumdu.edu.ua/handle/123456789/60434.

Повний текст джерела

Анотація:

Одним з найважливіших аспектів приватизації є передача соціальних об’єктів приватизованих підприємств, що має на меті поліпшення конкурентоспроможності підприємствводночас з підвищенням рівня утримання соціальних об’єктів після їх передачі до комунальної власності.
One of the most important aspects of privatization is the social transfer objects of privatized enterprises, aimed at improvement the competitiveness of enterprises during the high-level the maintenance of social objects after their transfer to communal property.

Стилі APA, Harvard, Vancouver, ISO та ін.

47

Скорба, Олег Анатолійович, Олег Анатольевич Скорба та Oleh Anatoliiovych Skorba. "Роль аудиту стійкості підприємства в умовах світової економічної кризи". Thesis, Українська академія банківської справи Національного банку України, 2009. http://essuir.sumdu.edu.ua/handle/123456789/60494.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

48

Панкратова, В. О. "Україна в європейській системі захисту прав людини". Thesis, Українська академія банківської справи Національного банку України, 2006. http://essuir.sumdu.edu.ua/handle/123456789/60484.

Повний текст джерела

Анотація:

Європейська система захисту прав людини, яка була створена Ра- дою Європи 1949 р., за час свого існування стала могутнім механізмом захисту прав людини та основних свобод.
The European system is a man-in-law of the people, doyu Європи 1949 р., for an hour of its own it became a mighty mechanism the misguided human rights of those fundamental freedoms.

Стилі APA, Harvard, Vancouver, ISO та ін.

49

Мещеряков, А. А. "Управління активами та пасивами комерційного банку як основа побудови його внутрішньої економіки". Thesis, Українська академія банківської справи Національного банку України, 2007. http://essuir.sumdu.edu.ua/handle/123456789/60464.

Повний текст джерела

Анотація:

Незважаючи на загальний характер ресурсного фонду, напрями використання різних його джерел за певними категоріями вкладень повинні відповідати чітким пріоритетам, виходячи з економічної сутності операцій, необхідності підтримання ліквідності і рівня. Для розподілу джерел залучення коштів за напрямами їх використання пропонується такий алгоритм. На першому етапі проводиться групування статей балансу банку за укрупненими показниками та визначення різниці між пов’язаними пасивами та активами.

Стилі APA, Harvard, Vancouver, ISO та ін.

50

Груша, О. В. "Конкурентні стратегії банків України". Thesis, Українська академія банківської справи Національного банку України, 2008. http://essuir.sumdu.edu.ua/handle/123456789/60404.

Повний текст джерела

Анотація:

Нині ми переживаємо абсолютно нову якість розвитку як економіки в цілому, так і банківського сектора зокрема. Важливість впровадження в практику управління українських банків процесних підходів безперечна, адже процесне управління використовують найбільші міжнародні банки. Саме тому без аналогічної перебудови систем управління вітчизняним кредитним організаціям важко зберігати свої позиції в конкурентній боротьбі.

Стилі APA, Harvard, Vancouver, ISO та ін.

Дисертації з теми "[604.4"

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями