Global ETD Search

51	The transformation of education in South Africa since 1994 : a historical-educational survey and evaluation Legodi, Mapula Rosina 11 1900 (has links) This study entails a critical investigation into the issue and trends that shaped Black perspectives on education in South Africa in the period between 1652 and 1993. A theoretical-philosophical exposition is presented to establish the fundamental characteristics of education and therefore characteristics valid for every human being under any circumstances at any time. These characteristics were used to eventually appraise the issues and trends underlying the shaping of Black perspectives on education in South Africa. This study has revealed that the shaping of Black perspectives on education in South Africa goes hand in hand with the growing realization among Blacks that education is not merely a political issue but also deeply imbedded in the interconnectedness and/or differences between social realities such as the church, the school itself, teachers' associations, the news media et cetera. This should be accounted for by every citizen in a responsible way. / Educational Studies / D. Ed. (History of Education) Perspectives Black education Authentic education Historica-educational Survey and appraisal Educational trends Open schools Missionary societies Bantu Education Act Multiracial 370.968
52	Stavebně technologický projekt rekonstrukce budovy magistrátu Brno střed / Construction technological project of reconstruction building of municipality Brno centre Rentková, Katarína January 2014 (has links) This dissertation is focuses on the design of remedial adjustments and replacement of the existing pavement for a new one on the New Town Hall in Brno. On this building I have worked on the technological regulation for the reconstruction of the internal courtyard and remediation work which I have completed by the inspection and test plans. I have created a timetable and mechanisms for used machines. Specialization of my thesis is to BOZP and risk plan for the whole building.
53	Fitness a Wellness centrum / Fitness and Wellness center Pospíchal, Pavel January 2018 (has links) The diploma thesis is about design and project documentation of fitness and wellness center. The designed object is situated in the outskirts of Havlíčkův Brod in a quiet environment and with direct connection to the city dam. The object is a three-storey partially-basement building with a flat green roof in three levels. The building is based on the base passages of plain concrete, reinforced concrete slabs and beads. The supporting, peripheral and partition walls are designed from the VELOX system. The outer casing consists of cement slab, reinforced concrete core and thermal insulation. In open-plan areas there are designed reinforced concrete columns. The ceiling structure is predominantly designed from reinforced concrete slabs to lost formwork. Part of the facade is plastered, the other part is ventilated. Individual architectural elements divide the object into units and fit into the natural landscape. The object is divided into several tracts where each has its own purpose and specification. In the 1st floor there is a gym, room for trainers and coordinating training room. In the center there is atrium, reception, cloakroom, buffet and public toilets. Vertical communication is possible using a suspended staircase or a hydraulic lift. On the 1st underground floor there is a reception desk and cloakroom for disabled people. In the western part of the tract there is an indoor pool with whirlpool, of course there are cloakrooms divided for men and women. The eastern part of the tract is used as a technical room of air-conditioning, there are also 3 saunas, including a relaxation room and dressing room. All facilities on the 1st underground floor have access to an outdoor park, including a dam and outdoor whirlpools. In the 2nd floor there is a staffing facility, an area for manegement, technical rooms and an outdoor green terrace. The designed object is designed for disabled people. Around the object there is designed a car park for 33 cars.
54	Komunitní centrum v Českých Budějovicích - stavebně technologický projekt / The community center in the Czech Budejovice - Construction Technology Project Vondrák, Tomáš January 2015 (has links) The theme of the diploma thesis is the construction technology project construction of a community center in the Czech Budejovice. The work describes the study of the main stages of technological, financial and construction schedule, itemized budget and technological prescription for performance building envelope. A substantial part of the work is to perform a technological prescription ceiling cladding structure above 1.NP, which is supplemented by technical-economic balance for the implementation of this ceiling construction, along with formwork drawings describes the optimal design of monolithic ceiling structure above 1.NP. Suitable design of the implementation process of the ceiling structure is achieved by reducing the cost of implementation of nearly 10% and shorten the length of the lease formwork system of almost 34% compared to the original assumption.
55	Die Aktivierung von reaktionsträgen kleinen Molekülen an koordinativ ungesättigten Beta-Diketiminato-Nickelkomplexen Holze, Patrick 06 September 2016 (has links) Kleine Moleküle wie Treibhausgase, aber auch Distickstoff und Disauerstoff stehen im Fokus der chemischen Forschung. Solche Moleküle sind durch ihr Vorkommen in der Atmosphäre ubiquitär vorhanden, preiswert und könnten als Synthesebausteine für die Darstellung von komplexeren Molekülen verwendet werden. In dieser Arbeit wurde die Reaktion koordinativ ungesättigter Diketiminato-Nickelkomplexe ([LNi] Komplexe) mit kleinen Molekülen untersucht. Zunächst wurden die Mechanismen der N2-Aktivierung durch reduzierte [LtBuNiI]- und [LMe6NiI] Komplexe miteinander verglichen. Dabei konnte das distickstoffaktivierende Schlüsselintermediat identifiziert und strukturell charakterisiert werden. Weiter wurden die N2-Komplexe [(LtBuNiI)( 1 1 N2)] bzw. K2[(LtBuNiI)( 1 1 N2)], die Vorläufer für [LNiI]- und [LNi0]– Komplexfragmente darstellen, hinsichtlich ihrer Potentials zur Aktivierung der reaktionsträgen Treibhausgase SF6 und NF3 untersucht. Über Reaktionen von Übergangsmetallkomplexen mit NF3 war bis dahin noch nicht berichtet worden; zur Umsetzung von SF6 existierten wenige Publikationen, in denen aber sehr viele mechanistische Fragen offengeblieben sind. Die Mechanismen der SF6- und NF3-Aktivierung wurden durch Kombination einer Vielzahl von ex- und in situ Analysen beleuchtet. Im Falle der SF6 Aktivierung gelang es zudem, ein Nickel(I)-Intermediat zu isolieren. Ein Produkt beider Systeme war der Fluorido-Nickel(II)-Komplex [LtBuNiIIF], dessen Reaktionsverhalten ebenfalls studiert wurde. Doch nicht nur Komplexe mit Nickelatomen in niedrigen Oxidationsstufen erwiesen sich für die Aktivierung kleiner Moleküle geeignet, sondern auch kationische [LtBuNiII(D)]+-Komplexe. Diese Nickel(II)-Komplexe reagierten mit fluorierten Molekülen, N2O sowie O2, was bemerkenswert ist, da Nickel(II)-Komplexe üblicherweise inert gegenüber O2 sind. Im Zuge der O2-Studien wurde ein metastabiler Oranoperoxidkomplex isoliert und strukturell charakterisiert, was beispiellos in der Literatur ist. / Current research focuses on the activation of small molecules like greenhouse gases, thermodynamically stable molecules like N2 and kinetically stabilized molecules like O2, which are all abundant in the atmosphere. Thus, it appears to be alluring to use them as cheap and readily available building blocks for the synthesis of value-added compounds. This dissertation deals with the reaction of low-coordinate diketiminate nickel complexes [LNi] and such small molecules. Initially, the mechanisms of the dinitrogen activation by reduced [LtBuNiI] and [LMe6NiI] complexes were studied. As a result, the key intermediate [(LtBuNiI)x(3 Br)xKx] (x > 1) was identified and structurally characterized. Subsequently, the nickel complexes [(LtBuNiI)( 1 1 N2)] and K2[(LtBuNiI)( 1 1 N2)], which represent sources for [LtBuNiI] and [LtBuNi0]– moieties, were applied to the activation of the inert, but very efficient greenhouse gases SF6 and NF3. Prior to these investigations, no transition metal complex had been reported to react with NF3. Publications dealing with the conversion of SF6 had been scarce, too, while at same time, the mechanisms involving its activation had been speculative. The mechanisms of the NF3 and SF6 activation reactions were deduced combining numerous ex-situ and in situ analytical methods. In case of the SF6 activation, even an intermediate could be isolated. In both systems, the nickel fluoride complex [LtBuNiIIF] was formed and its reaction behaviour was also studied. Furthermore, not only [LtBuNiI]- and [LtBuNi0]– moieties proved to be reactive towards small molecules, but also cationic [LtBuNiII(D)]+ complexes, which were specifically developed for this purpose. The reactions of [LtBuNiII(D)]+ complexes with fluorinated molecules (e. g. PhF, NF3), O2 and N2O were studied. In course of the O2 activation, a metastable organoperoxide complex was isolated and structurally characterized, which is unparalleled in the literature. Reaktionsmechanismen Treibhausgase Nickelkomplexe Organometallchemie Aktivierung von kleinen Molekülen Schwefelhexafluorid Diketiminato-Komplexe Stickstofftrifluorid Disauerstoff Lachgas Distickstoffmonoxid kationische Komplexe schwach koordinierende Anionen paramagnetisches NMR NMR-Spektroskopie ESR-Spektroskopie Reaktionsverlaufsstudien C-F-Aktivierung N-F-Aktivierung S-F-Aktivierung reaction mechanisms EPR spectroscopy nickel complexes organometallic chemistry small molecule activation sulfur hexafluoride diketiminate complexes nirtogen trifluoride dioxygen dinitrogen monoxide cationic complexes weakly coordinating anions paramagnetic NMR spectroscopy NMR spectroscopy in-situ methods greenhous gases C-F activation N-F activation S-F activation 540 Chemie 30 Chemie VH 7907 VH 6007 ddc:540
56	Stavebně technologický projekt bytového domu Meandr v Brně / Constructive technological project of block of flats Meandr in Brno Schauer, Martin January 2015 (has links) This diploma thesis deals with the construction technological project of block of flats residence Meandr in Brno - Komín. On the given topic are processed and all necessary supporting documents that enhances the clarity and orientation in matters large building for the preparation of the construction process. Given the scale, complexity and location of the building is structurally location technology project addresses the only earthworks and construction site of the main building object SO-01 only. Furthermore, nine small objects that are closely tied this main object within the premises of a residential building. Between integral part of this work include the project site facilities including a time of economic evaluation studies of major technological stages realization, design of main machinery and mechanisms itemized budgets volume of important buildings and budgets by THU volume, less important objects, further technological specification for the implementation of monolithic concrete construction as this topic linked inspection and test plan, risk and crisis measures. For the entire building housing residence is prepared detailed timetable and a lot of additional documents.
57	Stavebně technologický projekt výstavby polyfunkčního domu lokalita Nová Nitra / Constructive-technological project of building polyfunktion house locality Nova Nitra Malý, Filip January 2012 (has links) The content of this thesis is the construction project of technological multifunctional building new locality Nitra the Slovak Republic. Individual points outline the project, which are dealt with in this thesis can be divided into subcategories, depending on the type of information provided. The first category can include items such as a technical report to the STP, which describes the basic information about the objects constructed building including the construction situation, location of the site including links to transport and technical infrastructure and rough timetable for the construction of all buildings. The second category can include no specific calculation and optimization outputs such as itemized budget polyfunctional house SO-07.03, drawing of the site including all buildings proposed site and their economic evaluation, sizing of utilities for supplying water and electricity construction site, design of building machines and mechanisms including determining the time of deployment, technological regulation for the implementation of monolithic roof structure, including financial balance sheets prepared by the deployment of slab formwork. The last category included in the thesis are legislative requirements that must be observed and kept in the course of the construction plan is constructed as a safety and health at work, including security risks drawn up, inspection and testing schedule for monolithic construction and a list of environmental risks that may arise during implementation.
58	Stavebně technologický projekt výstavby penzionu pro seniory / Construction technology project of construction boarding house for seniors Karafiátová, Hana January 2013 (has links) The purpose of the final thesis is to elaborate selected parts of a technology building project of the Pension for the elderly. The complex includes eleven building objects and the main one is developed in detail. The final thesis includes a technical report about the technology building project, a building schedule, suggestion for realization of the main stages of its construction, a design of mechanical assembly. The final thesis also includes the project of site equipment, technological regulations , an inspection and test plan, an occupational safety and health plan.
59	Bytový dům Terasy Havlíčkova - vybrané části STP / The Havlíčkova Terraces Apartment Building - Selected Parts of the Construction and Technological Project Krejčí, Vlastimil January 2012 (has links) Architectural and technological project of building the housing Terraces Havlickova contains technical report on construction technology project,coordination situation, building relationships with the wider transport routes, time and financial plan of the building object, study the implementation of major technological stages of a residential building,Project construction site, design of the main building machines,schedule of the main building construction object SO-01,plan for securing material resources for the construction of residential house,technological regulation for the implementation of excavations and roofs,inspection and test plan for the implementation of the excavations and roofs. The other award was prepared itemized budget apartment house SO-01, calculation of construction according to THU, health and safety plan and Listing of security risks and security measures on site
60	Development of Sensitive In Vitro Assays to Assess the Ocular Toxicity Potential of Chemicals and Ophthalmic Products McCanna, David January 2009 (has links) The utilization of in vitro tests with a tiered testing strategy for detection of mild ocular irritants can reduce the use of animals for testing, provide mechanistic data on toxic effects, and reduce the uncertainty associated with dose selection for clinical trials. The first section of this thesis describes how in vitro methods can be used to improve the prediction of the toxicity of chemicals and ophthalmic products. The proper utilization of in vitro methods can accurately predict toxic threshold levels and reduce animal use in product development. Sections two, three and four describe the development of new sensitive in vitro methods for predicting ocular toxicity. Maintaining the barrier function of the cornea is critical for the prevention of the penetration of infections microorganisms and irritating chemicals into the eye. Chapter 2 describes the development of a method for assessing the effects of chemicals on tight junctions using a human corneal epithelial and canine kidney epithelial cell line. In Chapter 3 a method that uses a primary organ culture for assessing single instillation and multiple instillation toxic effects is described. The ScanTox system was shown to be an ideal system to monitor the toxic effects over time as multiple readings can be taken of treated bovine lenses using the nondestructive method of assessing for the lens optical quality. Confirmations of toxic effects were made with the utilization of the viability dye alamarBlue. Chapter 4 describes the development of sensitive in vitro assays for detecting ocular toxicity by measuring the effects of chemicals on the mitochondrial integrity of bovine cornea, bovine lens epithelium and corneal epithelial cells, using fluorescent dyes. The goal of this research was to develop an in vitro test battery that can be used to accurately predict the ocular toxicity of new chemicals and ophthalmic formulations. By comparing the toxicity seen in vivo animals and humans with the toxicity response in these new in vitro methods, it was demonstrated that these in vitro methods can be utilized in a tiered testing strategy in the development of new chemicals and ophthalmic formulations. in vitro Alternative Methods alamarBlue rhodamine tight junctions bovine lens viability toxicity mitochondria mitochondria integrity benzalkonium chloride sodium dodecyl sulphate sodium lauryl sulfate scanning electron microscopy Draize Draize maximal average scores zonula occludens cosmetic directive PETA humane society animal league ICCVAM ECVAM JaCVAM BCOP bovine cornea ocular irritants ocular irritation ocular toxicity human corneal epithelial cells vitro confocal confocal microscopy metabolic activity optical quality reactive oxygen species contact lens contact lens care solutions barrier function microbial keratitis mulitipurpose solutions tight junction cell damage claudin ZO-1 occludin MDCK Madin Madin-Darby canine kidney cells cornea human cornea human corneal epithelium epithelial cell line human corneal epithelial cell line sodium fluorescein sodium fluorescein permeability fluorescein permeability ocular surface cell monolayer Araki-Sasaki cell physiology risk assessment safety assessment ScanTox scanning laser lens epithelium corneal cells in vitro model ophthalmic formulations multiple instillation back vertex animal testing rabbit testing alternatives to animal testing cultured bovine lens toxicity of chemicals irritation irritants laser scanner organ culture delayed toxicity toxins hydrogen peroxide cornea toxicity cornea toxicity models prediction of human toxicity no observable adverse effect level lowest observable adverse effect level NOAEL LOAEL toxicity thresholds safety factors cornea uncertainty factors preservatives disinfectants ophthalmic products preclinical preclinical testing epithelial barrier drug penetration clinical confocal microscopy animal rights rabbit cornea human cornea human clinical effects toxic animal rights activist sensitive measures toxic effect toxicity threshold agar overlay agar diffusion agar overlay method agar diffusion method cytochrome cytochrome c apoptosis necrotic apoptotic necrosis caspase rhodamine 123 resazuran resorufin cell death cell viability metabolic dye microsomal microsomal enzymes cytotoxicity cytotoxic cytotoxic effect MTT XTT WST-1 plasma membrane mitochondrial mitochondrial morphology ocular toxicity potential ocular toxicity human corneal epithelial cell line confocal analysis corneal epithelium cell fluorescence alamarBlue assay rhodamine dye animal welfare toxic injury degraded mitochondria epithelial monolayer disinfectants membrane integrity eye toxicity eye viability dye toxicity in humans human toxicity effects on the mitochondria mitochondrial toxicity in vitro battery in vitro test battery ophthalmic eye drop direct contact product safety cytotoxicity potential molecular molecular biology refine reduce replace sensitivity and relevance sensitivity relevance rabbit ocular irritation test product development cytotoxicity models cytotoxicity alternative methods replacements for animal testing three r's beagle tiered testing tiered testing strategy replacements animal testing mechanistic toxicity cornea mitochondria dose response threshold Vision Science and Biology

Search results