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On almost sure behavior of stable subordinators over rapidly increasing sequences

Vasudeva, R.; Divanji, G. (Society for Industrial and Applied Mathematics, http://epubs.siam.org, NaN, 2006)

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Abstract:

Let (X(t), t ≥ (0) with X(0) = 0 be a stable subordinator with index 0 < α < 1 and let (tk) be an increasing sequence such that tk+1/tk → ∞ as k → ∞. Let (at) be a positive nondecreasing function of t such that a(t)/t 1. Define Y (t) = X(t + a(t)) − X(t) and Z(t) = X(t) − X(t − a(t)), t > 0. We obtain law-of-the-iterated-logarithm results for (X(tk)), (Y (tk)) and Z(tk), properly normalized.

URI:

http://hdl.handle.net/10311/1135

Files in this item: 1

Divanji_TPA_2006.pdf (120.0Kb)

Opinion polls in Botswana

Molefe, W.B.; Mguni, B.S. (Pula: Botswana Journal of African Studies, NaN, 2000)

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Abstract:

Opinion polls are a relatively new phenomenon in Botswana but nonetheless a welcome development as they inform both the candidates and the campaigners on pertinent issues facing the electorate. Opinion polls becomes more visible and more discussed during every general election in Botswana. Unlike developed countries where poll taking begins more than a year before an election and continues until the last few hours of the election night, polls here have been conducted at one time only during election years. Due to financial and logistical constraints they are not conducted at times when there are issues of public and national concern. Most of the polls so far polls have been conducted by the Democracy Research Project of the University of Botswana. However, as Bogart puts it 'the fundamental prmclple of statistical sampling, the basis for polling, seems hard for many people to understand'.

URI:

http://hdl.handle.net/10311/903

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Molefe_PBJAS_2000.pdf (525.0Kb)

Transition from higher education to employment: a case study of graduates of Faculty of Social Sciences University of Botswana

Ama, N.O. (Academic Journals, http://www.academicjournals.org/ERR, NaN, 2008)

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Abstract:

This study presents the opinions of a stratified sample of 542 graduates of the Faculty of Social Sciences, University of Botswana on their transition from higher education to employment and the extent to which the job held are appropriate to the level of education attained. The study revealed that the mean transition time for all the graduates was 4.6 months with a standard deviation of 0.19 months while they made an average of 13.5 contacts with employers before getting their first employment. The results of the analysis further showed a downward trend in the percentage of graduates whose transition times were less than 4 months over the study period. In addition the study revealed that over 72% of the graduates felt strongly that their jobs were appropriate to their level of education and relevant to the courses taken in the university and the public sector was still the highest employer. Based on the findings, the study recommends among other things, that the Botswana Government should sensitise and boost private sector involvement in the employment of graduates into their services in order to reduce the full burden of employment of graduates.

URI:

http://hdl.handle.net/10311/653

Files in this item: 1

Ama_ERR_2008.pdf (266.5Kb)

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