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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
371

An investigation into the success of the extended programmes at Walter Sisulu University, with particular reference to throughput rate

Solilo, Nikiwe Primrose Unknown Date (has links)
The purpose of the study was to investigate the success of the Extended Programme at Walter Sisulu University, with particular reference to throughput rates. Programmes offered by the institution to students are intervention measures to assist in improving student retention. This research investigated the role of the university with regards to retaining engineering students at Buffalo City. Also discussed will be the impact of financial support or lack thereof to paying for academic education. Lastly, the discussion will focus on Extended Programme courses offered to students and their impact on retention of students. Through Tinto’s model, Koen discussed that institutions have a responsibility for integrating academic and social activities to create holistic competent students (2007:65). It was also discovered that the institution through the Centre for Learning and Teaching Development (CLTD), offers services that benefit both students and lecturers. Merriam found out that the key to understanding qualitative research is the idea that meaning is socially constructed by individuals in their interaction with the world, (2002:3). This study called for qualitative research to get meaning from each participant. The research was conducted using questionnaires to both students and lecturers. The investigation discovered that an education institution is not only about academic studies. Data was collected and analysed using qualitative methods which included coding and colouring of responses. Research deduced that lecturers and students conclusively complained about the poor infrastructure of the university. It has been found that students think about their educational development, their personal growth and development, their employability and their prospects for career preparation or change (Moxley 2001:39). When students have this kind of attitude it means they have the courage to get through the choice no matter what challenges they face (2004: 212). According to Moxley, members of staff who expand their roles into tutorials, independent studies and small group projects, could be a pivotal strategy of the institutional retention mission, (2001:39). This is supported by Coetzee who state that lecturers should provide students with feedback quickly, promote independent thinking, guide and motivate students (2001:31).
372

175 – Das etwas andere Jubiläumsbuch

Steinebach, Mario, Thehos, Katharina January 2011 (has links)
Etwas anders soll es sein, dieses Buch zum 175-jährigen Jubiläum der Technischen Universität Chemnitz. Es erlaubt Vergleiche zwischen Generationen von Studierenden und Wissenschaftlern, die hier studiert, geforscht und gelebt haben. Es stellt Menschen vor, die im Großen und im Kleinen an der Geschichte der Hochschule mitgewirkt haben oder es noch tun. Es zeigt zudem viele Facetten der Universität und ihrer Vorläufereinrichtungen. Es gestattet aber auch den Blick in die Zukunft. Die Autoren erzählen Geschichten aus der Geschichte - und spielen dabei mit der Jubiläumszahl 175. Dazu zählen 1-Blicke in 7 Fachgebiete auf jeweils 5 Seiten sowie 1 x 7 x 5 Geschichten aus der Forschung. Außerdem ziehen sich 175 farblich hervorgehobene Superlative und Besonderheiten als "grüner Faden" durch das Buch.
373

Odkaz architekta Emila Králíka (1880-1946) / Heritage of Architect Emil Králík (1880-1946)

Chabičovská, Hedvika January 2019 (has links)
The diploma-thesis deals with the monograph of Architect Emil Kralik. Emphasis is placed on his pedagogical work. It will systematically proceed from Kralik's studies and first experiences, after the introduction of the architect's personality and critical literary research. Two chapters will be dedicated to Emil Kralik as a teacher. Character and importance of his didactic work will be demonstrated by the architectural activities of his pupils. In another part of thesis will be chronologically summarized the architectural Kralik's projects, both realized and unrealized constructions. The thesis will be completed by the evaluation of Emil Kralik's work and his position in the modern Czech architecture. Keywords architecture - 20th cent., art - 20th cent., Brno University of Technology, didactic; Exhibition of Contemporary Culture Brno 1928, pupils, projectsarchitecture - 20th cent., art - 20th cent., Brno University of Technology, didactic; Exhibition of Contemporary Culture Brno 1928, pupils, projects
374

Enhancing an International Perspective in Public Health Teaching through Formalized University Partnerships

Brzoska, Patrick, Akgün, Seval, Antia, Bassey E., Thankappan, K. R., Nayar, Kesavan Rajasekharan, Razum, Oliver 28 April 2017 (has links)
Teaching in the field of public health needs to employ a global perspective to account for the fact that public health problems and solutions have global determinants and implications as well. International university partnerships can promote such a perspective through the strengthening of cooperation, exchange, and communication between academic institutions across national boundaries. As an example for such an academic network in the field of public health, we introduce the International Public Health Partnership—a collaboration between a university in Germany and universities in India, Turkey, and Nigeria. Formed in 2005, it facilitated the exchange of information, fostered discussion about the transferability of public health concepts, contributed to the structural development of the universities involved, and promoted an intercultural dialog through a combination of local and distance learning activities. Although well accepted by students and staff, different obstacles were encountered; these included limited external funding, scarce own financial, time and personnel resources, and diverging regulations and structures of degree programs at the partnership sites. In the present article, we share several lessons that we learned during our joint collaboration and provide recommendations for other universities that are involved in partnerships with institutions of higher education or are interested to initiate such collaborations.
375

Experimental observation and quantum chemical investigation of thallium(I) (Z)-methanediazotate: synthesis of a long sought and highly reactive species

Singh, Neeraj, Fiedler, Benjamin, Friedrich, Joachim, Banert, Klaus 28 April 2017 (has links)
For the first time, successful synthesis and characterisation of the missing (Z)-isomer of thallium(I) methanediazotate has been accomplished, utilising low-temperature NMR monitoring analysis. The title compound was synthesised from N-methyl-N-nitrosourea and thallium(I) propoxide, under sub-ambient temperature conditions, as a highly moisture sensitive entity. Quantum chemical calculations, performed at the CCSD(T) level, depict excellent conformity to experimental results. Indeed, compared to its (E) counterpart, the formation of the title compound is thermodynamically less favoured, but preferred by means of kinetic control owing to a hindered isomerisation.
376

Effects of active and passive warming of the foot sole on vibration perception thresholds

Schmidt, Daniel, Germano, Andresa M.C., Milani, Thomas L. 28 April 2017 (has links)
Objective Skin temperatures are known to increase cutaneous sensitivity. However, it is unclear whether the amount of improved sensitivity differs depending on the protocol of heat application. Therefore, this study aimed to investigate the effects of active (treadmill walking) and passive (infrared radiator) warming of the foot sole on vibration perception thresholds. Methods Sixty healthy and injury-free subjects voluntarily participated in this study. Vibration perception thresholds (200 Hz) and plantar temperatures were measured at the hallux and 1st metatarsal head. In experiment 1, warming and mechanically stimulating the skin was achieved by walking on a treadmill for 30 min. In a follow-up study (experiment 2), external plantar heat was administered via an infrared radiator (30 min). Results In both experiments, increasing temperatures led to increased plantar sensitivity. However, the amount of improved sensitivity was greater in experiment 1, although plantar temperature increases were lower compared to experiment 2. Conclusions Warming in conjunction with mechanical stimulation seems to have a greater potential to enhance plantar sensitivity compared to external heat supply only. Significance The possible influence of mechanical stimulation and warming towards superior plantar afferent feedback highlights its importance regarding human posture and fall prevention.
377

Enhanced Passive RF-DC Converter Circuit Efficiency for Low RF Energy Harvesting

Chaour, Issam, Fakhfakh, Ahmed, Kanoun, Olfa 02 May 2017 (has links)
For radio frequency energy transmission, the conversion efficiency of the receiver is decisive not only for reducing sending power, but also for enabling energy transmission over long and variable distances. In this contribution, we present a passive RF-DC converter for energy harvesting at ultra-low input power at 868 MHz. The novel converter consists of a reactive matching circuit and a combined voltage multiplier and rectifier. The stored energy in the input inductor and capacitance, during the negative wave, is conveyed to the output capacitance during the positive one. Although Dickson and Villard topologies have principally comparable efficiency for multi-stage voltage multipliers, the Dickson topology reaches a better efficiency within the novel ultra-low input power converter concept. At the output stage, a low-pass filter is introduced to reduce ripple at high frequencies in order to realize a stable DC signal. The proposed rectifier enables harvesting energy at even a low input power from −40 dBm for a resistive load of 50 kΩ. It realizes a significant improvement in comparison with state of the art solutions
378

The Phase composition and microstructure of AlχCoCrFeNiTi alloys for the development of high-entropy alloy systems

Lindner, Thomas, Löbel, Martin, Mehner, Thomas, Dietrich, Dagmar, Lampke, Thomas 26 June 2017 (has links)
Alloying aluminum offers the possibility of creating low-density high-entropy alloys (HEAs). Several studies that focus on the system AlCoCrFeNiTi differ in their phase determination. The effect of aluminum on the phase composition and microstructure of the compositionally complex alloy (CCA) system AlxCoCrFeNiTi was studied with variation in aluminum content (molar ratios x = 0.2, 0.8, and 1.5). The chemical composition and elemental segregation was measured for the different domains in the microstructure. The crystal structure was determined using X-ray diffraction (XRD) analysis. To identify the spatial distribution of the phases found with XRD, phase mapping with associated orientation distribution was performed using electron backscatter diffraction. This made it possible to correlate the chemical and structural conditions of the phases. The phase formation strongly depends on the aluminum content. Two different body-centered cubic (bcc) phases were found. Texture analysis proved the presence of a face-centered cubic (fcc) phase for all aluminum amounts. The hard η-(Ni, Co)3Ti phase in the x = 0.2 alloy was detected via metallographic investigation and confirmed via electron backscatter diffraction. Additionally, a centered cluster (cc) with the A12 structure type was detected in the x = 0.2 and 0.8 alloys. The correlation of structural and chemical properties as well as microstructure formation contribute to a better understanding of the alloying effects concerning the aluminum content in CCAs. Especially in the context of current developments in lightweight high-entropy alloys (HEAs), the presented results provide an approach to the development of new alloy systems.
379

Oral health behaviour in migrant and non-migrant adults in Germany: the utilization of regular dental check-ups

Erdsiek, Fabian, Waury, Dorothee, Brzoska, Patrick 24 June 2017 (has links)
Background Migrants in many European countries including Germany tend to utilize preventive measures less frequently than the majority population. Little is known about the dental health of migrants as well as about their oral health behaviour, particularly in the adult population. The aim of this study was to examine differences in the uptake of annual dental check-ups in adult migrants and non-migrants in Germany. Methods We used data from the cross-sectional survey ‘German Health Update 2010’ conducted by the Robert Koch Institute (n = 22,050). Data from 21,741 German-speaking respondents with information on the use of dental check-ups was available, of which 3404 (15.7%) were migrants. Multiple logistic regression models were applied to adjust for demographic and socioeconomic confounders, including the place of residence as well as type of health insurance. Results Migrants were generally younger, had a lower socioeconomic status and showed a lower utilization of dental check-ups. The unadjusted odds ratio (OR) for utilization was 0.67 (95%-CI = 0.61–0.73). After adjusting for demographic and socioeconomic confounders the chance only increased slightly (adjusted OR = 0.71; 95%-CI = 0.65–0.77). Conclusions The analysis shows that migration status is associated with a reduced chance of attending dental check-ups, independently of demographic and socioeconomic factors. The influence of other factors, such as type of health insurance and place of residence had also no influence on the association. Migrants are exposed to different barriers in the health care system, comprising the patient, provider and system level. Further studies need to examine the relevant barriers for the uptake of preventive dental services in order to devise appropriate migrant- sensitive measures of dental prevention.
380

Cognitive Investments in Academic Success: The Role of Need for Cognition at University

Grass, Julia, Strobel, Alexander, Strobel, Anja 26 June 2017 (has links)
Previous research has shown that Need for Cognition (NFC), the individual tendency to engage in and enjoy cognitive endeavors, contributes to academic performance. Most studies on NFC and related constructs have thereby focused on grades to capture tertiary academic success. This study aimed at a more comprehensive approach on NFC’s meaning to success in university. We examined not only performance but also rather affective indicators of success. The current sample consisted of 396 students of different subjects with a mean age of 24 years (139 male). All participants took part in an online survey that assessed NFC together with school performance and further personality variables via self-report. Success in university was comprehensively operationalized including performance, satisfaction with one’s studies, and thoughts about quitting/changing one’s major as indicators. The value of NFC in predicting tertiary academic success was examined with correlation analyses and path analysis. NFC significantly correlated with all success variables with the highest correlation for study satisfaction. Path analysis confirmed the importance of NFC for study satisfaction showing that NFC had a significant direct effect on study satisfaction and via this variable also a significant indirect effect on termination thoughts. This study clearly indicates that NFC broadly contributes to the mastery of academic requirements and that it is worthwhile to intensify research on NFC in the context of tertiary education.

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