This work focuses on understanding the heterogeneous/homogeneous nature of the catalytic species for a variety of immobilized metal precatalysts used for C-C coupling reactions. These precatalysts include: (i) tethered organometallic palladium pincer complexes, (ii) an encapsulated small molecule palladium complex in a polymer matrix, (iii) mercapto-modified mesoporous silica metalated with palladium acetate, and (iv) amino-functionalized mesoporous silicas metalated with Ni(II). As part of this investigation, the use of metal scavengers as selective poisons of homogeneous catalysis is introduced and investigated as a test for distinguishing heterogeneous from homogeneous catalysis. The premise of this test is that insoluble materials functionalized with metal binding sites can be used to selectively remove soluble metal, but will not interfere with catalysis from immobilized metal. In this way the test can definitely distinguish between surface and solution catalysis of immobilized metal precatalysts. This work investigates three different C-C coupling reactions catalyzed by the immobilized metal precatalysts mentioned above. These reactions include the Heck, Suzuki, and Kumada reactions. In all cases it is found that catalysis is solely from leached metal. Three different metal scavenging materials are presented as selective poisons that can be used to determine solution vs. surface catalysis. These selective poisons include poly(vinylpyridine), QuadrapureTM TU, and thiol-functionalized mesoporous silica. The results are contrasted against the current understanding of this field of research and subtleties of tests for distinguishing homogeneous from heterogeneous catalysis are presented and discussed.

The research for this thesis started just before the TVNZ Charter was released in 2001. It followed the discussion regarding the new direction for the broadcaster to follow a more public service role. The data gathering was conducted through to post Charter implementation and captured the uncertainty surrounding the shift in policy. Although the aim of the TVNZ Charter was to raise the standards of public service broadcasting the introduction of this new policy was marked by confusion as to how this would be achieved, funded and monitored.The TVNZ Charter was introduced with the prescription that TVNZ find a balance in achieving public service needs in television as well as maintaining the revenue from advertising. This was because the government was not willing to provide sufficient funding for a non-commercial service and hence the result was always to be a hybrid model. It was frequently emphasized that Charter programmes should rate well and there was strong stress on the importance of retaining and attracting audiences.The core changes leading to the introduction of the TVNZ Charter owe their origins to the major policy turning point of 1989/1990, when broadcasting was deregulated in New Zealand. The free market provided programmes with a focus on entertainment and the previous dictum that they should also educate and inform was no longer spelled out in the Broadcasting Act. As only one of the traditional principles of television was being satisfied, there was a measurable decline in programmed diversity and it is argued, quality. The freedom of deregulation allowed TVNZ to pursue the goal of earning as much advertising revenue as possible. Therefore, the TVNZ Charter was hailed as a significant change of direction to ensure that public service needs were met.Even though it can be argued that many positive changes have resulted since the TVNZ Charter was mooted, it is argued that the drive to reposition TVNZ as a public service broadcaster seems to have resulted in a very diluted form of public service broadcasting. A major shift in direction has been compromised by a fear that significant changes in programming would result in a dramatic loss of vital advertising revenue.

Diss. (sammanfattning) Stockholm : Karolinska institutet, 2006. / Härtill 5 uppsatser.

Diss. (sammanfattning) Umeå : Univ., 2007. / Härtill 4 uppsatser.

Thesis (doctoral)--Katholieke Universiteit te Nijmegen.

abstract: Chloride solutions have historically been used to stabilize roads and to prevent dust; however, very little work has been done on investigating the soil stabilizing benefits from interactions between salt solutions and different soil types. The primary goal of this research was to analyze the feasibility of utilizing a salt waste product as an economically and environmentally responsible means of dust control and/or soil stabilization. Specifically, this study documents an investigation leading to the understanding of how the addition of saline based waste products, when using a soil stabilizer, modifies the strength behavior of soils. The scope of work included the evaluation of current literature, examination of the main challenges meeting relevant governmental regulations, and exploring the possibility of using saline waste to improve roadways. Three soils were selected, treated with varying amounts of salt (calcium chloride, CaCl2), and tests included soil composition and classification, correlation of soil characteristics and salt, and obtaining strength parameters that are typically used in pavement design and analysis. The work effort also included the determination of the optimum dosage of salt concentration for each soil. Because Lime treatment is also commonly used in soil stabilization, one of the soils in this study included a treatment with Lime for comparison purposes. Results revealed that when salt concentration was increased, a decrease in the plasticity index was observed in all soils. A modest to considerable strength gain of the treated material was also observed for two of the soils; however, a strength loss was observed for the third soil, which was attributed to its low clay content. When comparing the soil corrosive potential, the additional salt treatment showed promise for increasing strength, to an extent; however, it changes the chemical properties of the soil. The soils prior to treatment were corrosive, which could be managed with appropriate techniques, but the salt increases the values to levels that could be potentially cost prohibitive if salt was used by itself to treat the soil. The pavement design and performance investigation revealed that the Vineyard soil treated at 16% CaCl2 had an improvement that is comparable to the Lime treatment. On the other hand, the Eager soil showed very little pavement performance improvement at 8% CaCl2; this goes back to the effect of acid on the clay mineralogy. It was also postulated that using salt by-products to stabilize highway shoulders could be beneficial and save a lot of maintenance money when it comes to cleaning unwanted vegetation. A salt saturated soil structure could help in dust control as well. Future environmental challenges for salt leaching that could affect agriculture in developing countries will still need to be carefully considered. The chlorine levels in the soil would increase, and if not treated, can potentially have corrosive effects on buried structures. Future research is recommended in this area and to also evaluate soil stabilizing properties of varying proportions of Lime and salt using the approach provided in this study. / Dissertation/Thesis / Doctoral Dissertation Civil, Environmental and Sustainable Engineering 2017

Public speaking anxiety (PSA), widespread amongst students and also the general population, is associated with substantial distress and interferes with a person’s ability to give a presentation or speech. This can lead to difficulties in social, occupational and academic areas of functioning. Despite its pervasiveness, very few individuals will seek help, most will tend to avoid the anxiety-provoking situations. This can be a serious issue if left untreated, leading to negative impacts on quality of life, for example dropping out of education early and subsequently having limited job opportunities. The literature review explored the existing body of work regarding PSA and presented the rationale for the current research, beginning with a conceptual framework and the manner in which PSA is related to Social Anxiety Disorder (SAD). This was followed by a detailed investigation of existing influential models and treatment modalities for both PSA and SAD. It identified that CBT has been the most effective treatment and has been delivered via different formats; however some individuals with SAD/PSA did not respond to a mainstream CBT approach and continued presenting residual symptoms after therapy. Thus, Acceptance and Commitment Therapy (ACT) was introduced, with an examination of its model and potential to help PSA. Preliminary research employing acceptance-based strategies have provided promising results. The literature review indicated a need for investigation of (i) more readily disseminated, briefer formats of ACT and (ii) whether differences exist in efficacy and sustainability between non-guided self-help and group-led therapies format. Given the large number of individuals experience PSA/SAD and the limited availability of resources, there is a need to consider ways of improving access. Thus, development of ultra-brief interventions would potentially reduce delivery cost and enhance dissemination to a larger population. Keywords: public speaking anxiety, social anxiety, interventions, experiential avoidance, fear of negative evaluation, acceptance.

Abstract Title: The impact of national culture on the organizational culture: Multinational companies doing businesses in developing countries Level: Final assignment for Master Degree in Business Administration (MBA) Author: Md. Mahbub Alam Supervisor: Dr. Ehsanul Huda Chowdhury Examiner: Dr. Maria Fregidou-Malama Day: 2017- May Aim: The aim of the study is to understand how national culture of Bangladesh is affecting the organizational culture of the multinational firms operating in Bangladesh. To understand the issue, Hofstede’s Cultural Dimensions are regarded as benchmark for analysis. Method: Qualitative study has been conducted whereby both primary and secondary data are used. Hereby, primary data have been gathered from ten employees of Grameen Phone a multinational working in Bangladesh. To collect data, face to face interviews has been conducted using Skype. Results & Conclusions:  Finding of the study is the MNCs integration with national culture with the view to sustainable business operation. It has been demonstrated that national culture affects the organizational culture in the form of employee participation, collective working environment, collaborative work efforts, and knowledge sharing through continuous communication. Suggestions for future research: Further investigations on national culture’s impact on organizational culture can be undertaken by making a comparison between MNC and a purely local firm. Additionally, an analysis on a large number of MNCs operating in host country can add value for further researches. Contribution of the thesis: To the theoretical model, this study makes contribution on the ground of understanding how MNC adapt their business with local culture where cultural sensitiveness is high. Managerial implications: MNCs can ensure collaboration, support, and teamwork among employees as part of their attempt to integrate with local culture. This study reveals that local employees can be used as means of cultural carriers by managers which can promptly address the cultural differences to be mitigated. Keywords: Multi-national Corporations (MNCs), National Culture, Organizational Culture, Uncertainty Avoidance, Individualism vs. Collectivism, Power Distance

This dissertation explores theory with regards to function in architecture. The objective would be to consider the role of any intervention, within its context, in the initial design stages before programmatic conclusions are made. It also investigates the importance of formalizing embedded site narrative as a primary function of any intervention. The final proposal creates a space with an unmistakable sense of place capable of hosting any event on the social calendar of the University, synonymous with student life and the memory thereof. True beauty does not only dwell in the aesthetic appeal of an edifice, but in the presentation of an embedded narrative, giving complex meaning to the whole and driving the creation to be a manifestation of this narrative. An intervention can be absorbed by its own internal programme or generate an urban space that becomes the custodian of the interior. Campus buildings often outlive their programmatic functions due to changing spatial demands and growth. It is therefore necessary for designers to lay emphasis on design strategies that provide interventions with the capacity to sustain their intended functions. / Dissertation (MArch(Prof))--University of Pretoria, 2008. / Architecture / unrestricted

The present study explored whether (a) positive or negative reinforcement would produce higher percentages of on-task student behavior at set timed intervals, (b) positive, negative, or total reinforcement would increase student attentiveness after reinforcement, and (c) if natural fluctuations in teacher approval/disapproval would have any bearing on percentages of student attentiveness. Findings of the 15-day study concluded that (a) positive reinforcement maintained significantly higher levels of student attentiveness over negative reinforcement, (b) negative reinforcement did not significantly lower percentages of student attentiveness, and (c) natural fluctuations in rates of teacher approval/disapproval had no apparent effect on the amount of on-task behavior in the beginning strings class.