Browsing by Title
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Sebina, P. (Routledge (Taylor and Francis) www.routledge.com, NaN, 2009)[more][less]
Abstract: The passing of the Promotion of Access to Information Act (PAIA) in South Africa in 2000 ushered in a new era in accessing government records. Members of the public no longer have to wait for 20 years for government records to become archives in order to gain access to them. PAIA gave the public the right of access to all records irrespective of age except for those exempted under the provisions of the Act. This chapter evaluates the impact that Freedom of Information (FOI) legislation in general and PAIA in particular have had on access policies and practices in South Africa, and examines the extent to which this legislation has been used successfully by historians, journalists and other researchers. While the focus is on South Africa, the chapter further examines the lessons that the rest of sub-Saharan Africa could draw from the implementation and use of PAIA. URI: http://hdl.handle.net/10311/755 Files in this item: 1
Sebina_JSA_2009.pdf (1.558Mb) -
Bwire, R N; Majinda, R R; Masesane, I B; Steel, P G (International Union of Pure and Applied Chemistry. http://stage.iupac.org/publications/pac/, NaN, 2009)[more][less]
Abstract: The Diels–Alder adducts of ethyl (E)-3-nitroacrylate and furan provided a common and versatile template for the stereocontrolled synthesis of an isomer of the natural product oryzoxymycin and polyhydroxylated cyclohexyl β-amino acid derivatives. The strategy for the synthesis of the polyhydroxylated cyclic β-amino acid derivatives involved base-induced fragmentation of the oxanorbornene skeleton and face selective oxidation reactions. A Pd-catalyzed transfer hydrogenation reaction in the presence of organic acids is also described. This reaction is amenable to being enantioselective through use of optical pure chiral organic acids. URI: http://hdl.handle.net/10311/301 Files in this item: 1
From nature.pdf (2.826Mb) -
Temtime, Z.T. (WileyInterscience, http://www.wileyinterscience.com, NaN, 2008)[more][less]
Abstract: Today’s business environment is characterized by stiff competition, rapid technological advancements, and changing requirements of customers and employees. To grow and survive in this turbulent environment, Small and Medium Enterprises (SMEs) must balance the emphasis they put on the improvement of short-term operational efficiency and long-term competitiveness. Due to the apparent lack of resources and expertise, most SMEs pay very little attention to long-term competitiveness and dynamism. Preoccupied with operational bits and pieces, SMEs lack strategic awareness and orientation. Strategic awareness is a mental process of continually evaluating organizational and environmental factors and improving on how they are identified, recognized, influenced, and interpreted, and consequently used in making strategic business decisions. The widespread use of short-term oriented, non-formal business planning practices indicates lack of strategic awareness and competitiveness among SMEs. This paper examines the degree of emphasis attached by SMEs, during their business planning, to the achievement of long-term competitive advantages by presenting evidence from a recent empirical study based on data collected from 91 SMEs and analyzed using descriptive statistics such as mean and standard deviation. The findings indicated that SMEs put greater emphasis on short-term profitability and operational efficiency than developing strategic awareness and long-term competitiveness. Although this could be attributed to the relative lack of resources required for the implementation of strategic planning, policy deployment, and positioning, SMEs should be assisted to think and act strategically if they are to survive and grow in today’s turbulent and dynamic markets. Government agencies, policy-makers, consultants, non-governmental organizations, and other small business support agencies must redirect their efforts toward bridging the gap between short-term operational efficiency and strategic competitiveness and sustainability. This paper provides managerial and policy implications for SMEs, SME support agencies, government and non-government agencies, and future research. URI: http://hdl.handle.net/10311/841 Files in this item: 1
Temtime_SC17_2008.pdf (1.252Mb) -
Fynn, R.W.S.; Bonyongo, M.C. (Wiley, November NaN, 2010)[more][less]
Abstract: Ungulate populations in African conservation areas (CAs) are in widespread decline, which can largely be attributed to a lack of functionality of the area encompassed by the CAs themselves. We present evidence from a wide range of African CAs showing that they do not encompass both the functional wet- and dry-season resources that ungulates traditionally migrated between. Before human populations and economic development had grown to levels where they interfered with migrations outside the CAs, ungulates were able to make use of their traditional seasonal resources but this is becoming increasingly difficult and we are now seeing the effects of this restriction of movement on ungulate population numbers. New innovative strategies are required for the conservation of African wildlife. An urgent Africa-wide survey is needed to establish past and present functional resources in and around CAs and to prioritize conservation regions that are most functional. In addition, innovative attempts need to be made to reconsolidate functional seasonal resources within revised expanded protected areas. URI: http://hdl.handle.net/10311/781 Files in this item: 1
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Bagwasi, M.M. (Multilingual Matters and Channel View Publications, http://www.multilingual matters.com, NaN, 2003)[more][less]
Abstract: In multilingual societies such as Botswana, language use is an extremely complex matter, further compounded by the fact that the languages involved are themselves dynamic phenomena that often elude the planned outcomes of policies which try to shape and constrain them. The paper describes the functional distribution of the national language Setswana, spoken as a mother tongue by 80% of the population, and English, the official language in Botswana. The role of the two languages is outlined, with particular regard to cultural identity, on the one hand, and social and economic status on the other. URI: http://hdl.handle.net/10311/831 Files in this item: 1
Bagwasi_LCC_2003.pdf (692.5Kb) -
Khartchenko, N.V.; Oladiran, M.T.; Douglass, G.W. (University of Botswana, http://www.ub.bw, NaN, 1999)[more][less]
Abstract: Coal is plentiful in many parts of the world but its combustion can create severe environmental and aesthetic problems.In the past three decades, the cost of crude oil and natural gas has been unstable and the reserves of these fuels are exhaustible. Other non-conventional energy resources, for example, solar, wind and tidal energy are only making a small contribution to the energy mix in few countries. Consequently, coal still has an important role to play to satisfy the energy demand, especially when it can be converted before combustion to other less environmentally objectionable forms, e.g. coal gas/producer gas. This paper describes the basic principles of coal gasification process and compares the performance of different gasifiers. The fundamentals of the raw gas cleaning methods are presented and experience to date of coal gasification in Botswana is discussed.It seems certain that coal gasification in tanderm with combined cycle power plant will be a principal technique for electricity generation in the next century. The paper recommends that Botswana takes necessary actions to gain maximum advantage from these developments. URI: http://hdl.handle.net/10311/710 Files in this item: 1
Khartchenko_BJT_1999.pdf (1.810Mb) -
Mubyana-John, T.; Wright, M.G. (Global Science Books, http://www.globalsciencebooks.info/, NaN, 2011)[more][less]
Abstract: A study assessing fungi isolated from three climatic regions of Botswana as a possible control for root knot nematodes (Meloidogyne spp.) affecting the tomato(Lycopersicon esculentum L. var. ‘Money maker’) crops was conducted. Out of 1,250 soil fungal isolates, only 232 soil fungi from the Okavango Delta, Bobirwa district and different saltpans in Botswana could be sub cultured, and screened for antagonism against Meloidogyne sp. Seven of the isolates i.e., Trichoderma sp., Penicillium sp., Dendriphiopsis sp., Fusarium chlamydosporium, Cochliobolus sativus, Aspergillus fumigatus and an unidentified sterile fungus showed potential to immobilize nematode juveniles on agar plates within 2-4 days. C. sativus and Dendriphiopsis sp. showed maximum paralysis on agar plates and eventually death of the Meloidgyne sp. juveniles. In greenhouse studies using tomato plants the fungi alleviated the effect of nematodes by increasing plant, shoot height and root weight as compared to the reference controls. Cochliobolus sativus and Trichoderma sp. showed maximum plant protection of tomato plants under greenhouse conditions. Fungi ability to produce cellulase and chitinase were some of the mechanisms studied. The results indicated that Trichoderma sp., Penicillium sp., Dendriphiopsis sp., Fusarium chlamydosporium, Cochliobolus sativus and Aspergillus fumigatus are nematode antagonistic fungi indigenous to Botswana that can be used to control nematodes as they are better adapted in comparison to introduced fungi. URI: http://hdl.handle.net/10311/917 Files in this item: 1
Mbuyana-John_AJPSB_2011.pdf (813.1Kb) -
Haron, M. (Faculty of Theology, University of Stellenbosch, http://academic.sun.ac.za/tsv/Scriptura/scriptura.htm, NaN, 2006)[more][less]
Abstract: Southern Africa's Muslim minorities have been growing at a steady pace through procreation, conversion and migration. These Muslim communities have rooted and embedded themselves onto the Southern African soil and have contributed in varied ways to the respective countries where they reside and live. Apart from South Africa's well documented Muslim community, very little attention has been given by scholars to the Muslim communities in its neighbouring states. When one surveys the region, it becomes evident that nothing substantial has been written about the Muslims in Namibia, Swaziland and Lesotho except for a few popular journalistic articles, and that few attempts have been made by scholars to write about the Muslim communities in Zimbabwe, Mozambique and Botswana. This article will therefore try to look at the last mentioned country with specific focus on the Gaborone Muslim community. This article complements the academic studies that have been produced in 1989 and 1998/2000 respectively. This article mainly focuses itself upon the contemporary developments that have taken place in Botswana's capital city where most of the Muslims reside and work. It intends to pinpoint, describe and briefly analyse all the major role players and institutions that are around and that have contributed towards creating a unique Gaborone Muslim community. URI: http://hdl.handle.net/10311/150 Files in this item: 2
haron_gaborone_muslimcommunity2006.pdf (214.9Kb)license.txt (1.998Kb) -
Abegaz, B.M.; Bezabih, M.; Msuta, T.; Brun, R.; Menche, D.; Muhlbacher, J.; Bringmann, G. (American Chemical Society. http://pubs.acs.org/jnp/, NaN, 2002)[more][less]
Abstract: The novel phenylanthraquinones 4'-O-demethylknipholone-4'-O-β-D-glucopyranoside (2) and gaboroquinones A (3) and B (4) were isolated from the African medicinal plant Bulbine frutescens. Biaryl 2 represents the first phenylanthraquinone glucoside, while 3 and 4 are the first side-chain-hydroxylated phenylanthraquinones. Their constitutions were determined by spectroscopic analysis, in particular by HMBC, HMQC, and ROESY NMR investigations, and by chemical transformations. The axial configurations were elucidated chemically, by deglucosylation of 2 and by side-chain deoxygenation of 3 and 4 to give the known phenylanthraquinones 4'-O-demethylknipholone (5), isoknipholone (6), and knipholone (1), respectively, and chiroptically, by CD investigations. Compounds 2, 3, and 4 showed moderate to good antiplasmodial and antitrypanosomal activities in vitro. URI: http://hdl.handle.net/10311/346 Files in this item: 1
Gaboroquinones.pdf (407.3Kb) -
Phaladze, N.; Tlou, S. (Oxfam. http://www.ingentaconnect.com/content/routledg/cgde, January 1, 2006)[more][less]
Abstract: This article discusses the response of Botswana to the HIV/AIDS epidemic. In recognition of the fact that HIV/AIDS is more than just a health issue, Botswana has instigated a multi-sectoral response to the epidemic, which sets Botswana apart as an example of a country following ‘best practice’ in HIV/AIDS prevention and control. Yet the battle is not over. AIDS is the leading cause of death in Botswana for young adult women aged between 15 and 19 years old. This article makes suggestions for future improvement, to respond to the challenges facing Batswana women living with, and affected by, HIV/AIDS. URI: http://hdl.handle.net/10311/567 Files in this item: 1
Gender and HIV.pdf (1.167Mb) -
Maruatona, T. (Routledge. http://www.informaworld.com, NaN, 2005)[more][less]
Abstract: This empirical paper demonstrates that in spite of being a multiethnic society, literacy education in Botswana has ignored gender and cultural diversity. It demonstrates how planners endorsed a technocratic view of planning, emphasizing their curriculum expertise instead of learners' realities. The article argues that planners systematically ignored gender and minority issues through assuming that learners shared common concerns and that they are passive consumers. The planners reinforced their dominance by using one national language in a multilingual community, arguing that it is a natural choice and nobody objected to its use. Finally, the paper suggests that in order to address gender and minority issues, the programme should use the mother tongue and adopt participatory approaches in curriculum planning. URI: http://hdl.handle.net/10311/513 Files in this item: 1
Maruatona_IJLE_2005.pdf (1.475Mb) -
Akpabio, E. (University of Botswana, http://www.ub.bw, NaN, 2007)[more][less]
Abstract: The state of Botswana and the University of Botswana have made avowed commitments to gender equity. The former has done so by signing up for and implementing various protocols aimed at enforcing gender justice and the latter by mainstreaming gender in its various processes activities and operations. The main focus of this study is to find out if this commitment to gender mainstreaming is reflected in the University's house journal - UB Newsletter. This is because of the media's ability to influence the public agenda by focusing the audience attention on particular issues, thus guaranteeing the salience of such issues in the minds of audience members. The study universe was the content of the newsletter over a six year period - 2000 - 2005. Content categories were academic, non-academic/social, appointment, and interviews. The study examined physical units, involving examination of the space devoted to activities and achievements of members of staff. The findings indicated that male members of staff dominated in all the content categories in the editions of the publication analyzed, thus giving the erroneous impression that the University of Botswana is a man's world. Flowing from these findings, the study recommends that the Public Affairs Department engage in gender-aware reporting in order to redress the situation. URI: http://hdl.handle.net/10311/686 Files in this item: 1
Akpabio_BJAS_2007.pdf (4.728Mb) -
Mobarek, A.; Mollah, A.S. (World Scientific, www.worldscientific.com, NaN, 2005)[more][less]
Abstract: The paper investigates the underlying factors that determine share returns on the Dhaka Stock Ex change. The empirical analysis does not support the critical condition of the Capital Asset Pricing Model of a positive relationship between share return and beta. However, it shows that variables such as size, price to book, volume of shares traded, earnings yield and cash flow yield have a significant influence on share returns. The degree and direction of relationship among the variables are similar to other emerging markets, but are not always consistent with developed markets perhaps due to lack of homogeneous expectations regarding risk return characteristics and different market microstructure. URI: http://hdl.handle.net/10311/798 Files in this item: 1
Mobarek_RPBFMP_2005.pdf (2.071Mb) -
Motshegwe, S.M.; Holmback, J.; Yeboah, S.O. (AOCS Press. http://www.springerlink.com/content/0003-021X, NaN, 1998)[more][less]
Abstract: A preliminary investigation of the bulk properties of the oil from the edible mophane caterpillar (phane), Imbrasia belina, showed a significant difference in the iodine values of the oils from mature and young phane. Detailed analysis of the fatty acid composition of the two oil samples was thus carried out by capillary gas chromatography (GC) and complemented with 1H and 13C nuclear magnetic resonance (NMR) studies to investigate the degree of unstauration in the two oil samples. While these studies showed that the oil samples from the mature and young mophane caterpillar were much the same in fatty acid composition, the data revealed a significant divergence from a literature report on phane oil. This earlier report puts the ratio of total saturated to total unsaturated fatty acids at approximately 1:1 (48.2:48.8, in percentages) and estimates the fatty acid composition for the major fatty acids as 16:0 (31.9%), 18:0 (15.2%), 18:1 (20.4%), 18:2 (9.9%), and 18:3 (19%). The data collected from the present work, however, showed the fatty acid composition for total saturated and total unsaturated fatty acids to be 40.5 and 57.0%, respectively. This work estimated the fatty acid composition for the major fatty acids as 16:0 (27.2%), 18:0 (12.3%), 18:1 (16.1%), 18.2 (10.7%), and 18:3 (29.0%). Thus, linolenic acid was the most abundant fatty acid in the phane oil. The GC results of the present analysis were largely corroborated by studies of the composition of fatty acid classes in the phane oil estimated from integrals of 1H and 13C NMR signals. Oils from other edible Lepidoptera larvae are also known to be much richer in unsaturated than saturated fatty acids. URI: http://hdl.handle.net/10311/307 Files in this item: 1
General properties.pdf (1.906Mb) -
Cailteux, J.L.H.; Kampunzu, A.B.; Lerouge, C.; Kaputo, A.K.; Milesi, J.P. (Elsevier www.elsevier.com/locate/jafrearsci, NaN, 2005)[more][less]
Abstract: The Neoproterozoic central African Copperbelt is one of the greatest sediment-hosted stratiform Cu–Co provinces in the world, totalling 140 Mt copper and 6 Mt cobalt and including several world-class deposits (P10 Mt copper). The origin of Cu–Co mineralisation in this province remains speculative, with the debate centred around syngenetic–diagenetic and hydrothermal-diagenetic hypotheses. The regional distribution of metals indicates that most of the cobalt-rich copper deposits are hosted in dolomites and dolomitic shales forming allochthonous units exposed in Congo and known as Congolese facies of the Katangan sedimentary succession (average Co:Cu = 1:13). The highest Co:Cu ratio (up to 3:1) occurs in ore deposits located along the southern structural block of the Lufilian Arc. The predominantly siliciclastic Zambian facies, exposed in Zambia and in SE Congo, forms para-autochthonous sedimentary units hosting ore deposits characterized by lower a Co:Cu ratio (average 1:57). Transitional lithofacies in Zambia (e.g. Baluba, Mindola) and in Congo (e.g. Lubembe) indicate a gradual transition in the Katangan basin during the deposition of laterally correlative clastic and carbonate sedimentary rocks exposed in Zambia and in Congo, and are marked by Co:Cu ratios in the range 1:15. The main Cu–Co orebodies occur at the base of the Mines/Musoshi Subgroup, which is characterized by evaporitic intertidal–supratidal sedimentary rocks. All additional lenticular orebodies known in the upper part of the Mines/Musoshi Subgroup are hosted in similar sedimentary rocks, suggesting highly favourable conditions for the ore genesis in particular sedimentary environments. Prelithification sedimentary structures affecting disseminated sulphides indicate that metals were deposited before compaction and consolidation of the host sediment. The ore parageneses indicate several generations of sulphides marking syngenetic, early diagenetic and late diagenetic processes. Sulphur isotopic data on sulphides suggest the derivation of sulphur essentially from the bacterial reduction of seawater sulphates. The mineralizing brines were generated from sea water in sabkhas or hypersaline lagoons during the deposition of the host rocks. Changes of Eh–pH and salinity probably were critical for concentrating copper–cobalt and nickel mineralisation. Compressional tectonic and related metamorphic processes and supergene enrichment have played variable roles in the remobilisation and upgrading of the primary mineralisation. There is no evidence to support models assuming that metals originated from: (1) Katangan igneous rocks and related hydrothermal processes or; (2) leaching of red beds underlying the orebodies. The metal sources are pre-Katangan continental rocks, especially the Palaeoproterozoic low-grade porphyry copper deposits known in the Bangweulu block and subsidiary Cu–Co–Ni deposits/occurrences in the Archaean rocks of the Zimbabwe craton. These two sources contain low grade ore deposits portraying the peculiar metal association (Cu, Co, Ni, U, Cr, Au, Ag, PGE) recorded in the Katangan sediment-hosted ore deposits. Metals were transported into the basin dissolved in water. The stratiform deposits of Congo and Zambia display features indicating that syngenetic and early diagenetic processes controlled the formation of the Neoproterozoic Copperbelt of central Africa. URI: http://hdl.handle.net/10311/387 Files in this item: 1
Kampunzu2005GenesisSediment.pdf (2.837Mb) -
Tabulawa, R. (Routledge. http://www.informaworld.com, June NaN, 2002)[more][less]
Abstract: Curriculum reviews during the past two decades in Botswana have had mixed fortunes for geography in secondary schools. While the subject has modernised over the years it has at the same time shrunk in terms of its spread over the entire secondary schooling period. This paper describes this contradictory development, teasing out some of the most salient forces that have shaped the geography curriculum in secondary schools in Botswana. It argues that the subject's future is precarious and uncertain. Deliberate and concerted effort to promote and 'sell' the subject is required of those with vested interests in it. URI: http://hdl.handle.net/10311/515 Files in this item: 1
Tabulawa_IRGEE_2002.pdf (1.042Mb) -
Tabulawa, R.T. (Routledge. http://www.informaworld.com, January NaN, 2004)[more][less]
Abstract: This study reports on the strategies (overt and subtle) employed by students in one senior secondary school in Botswana to keep their teachers in an information-giving position. Contrary to the prevailing view that the 'teacher dominance' of classroom activities so often reported in classroom studies results from teachers' desire for social control, this study sees the dominance as a negotiated product, resulting instead from teachers and students exercising power on one another. Such a view of classroom practice is only possible where power is conceptualized not as a negative force that dominates, but as a productive force that simultaneously constrains and enables human action. Viewed this way, classroom reality becomes a co-construction, a 'joint project' by teacher and students. Attempts to change this reality, therefore, must include both teacher and students. URI: http://hdl.handle.net/10311/516 Files in this item: 1
Tabulawa_JCS_2004.pdf (1.362Mb) -
McQuillan, J. (University of Chicago Press www.springerlink.com/index/K8T8573317636045.pdf, NaN, 2006)[more][less]
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Tabulawa, R. (Springer. http://www.springerlink.com, April NaN, 2007)[more][less]
Abstract: The University of Botswana has not escaped the reform fever currently gripping higher education institutions the world-over. In the late 1980s the University initiated an administrative/management restructuring exercise whose resultant structure was implemented between 1998 and 2000. The exercise, in many respects, was a response to globalization. The emergence, in the past two decades, of a global economy, the massification of higher education, and the globalization of neo-liberal economic thinking have compelled universities to recast their social and economic missions. Consequently, universities have had to restructure within the framework of a global ideology characterized by an emphasis on effectiveness, quality and efficiency. This paper explicates the restructuring exercise at the University of Botswana by locating the exercise within its global and local contexts. It argues that while the resultant structure reflected global influences and trends, it was as much a product of local concerns. URI: http://hdl.handle.net/10311/511 Files in this item: 1
Tabulawa_HE_2007.pdf (2.309Mb) -
Bartsch, A.; Wagner, W.; Scipal, K.; Sabel, D.; Wolski, P. (Elsevier, March 17, 2008)[more][less]
Abstract: This paper elaborates on recent advances in the use of ScanSAR technologies for wetland-related research. Applications of active satellite radar systems include the monitoring of inundation dynamics as well as time series analyses of surface soil wetness. For management purposes many wetlands, especially those in dry regions, need to be monitored for short and long-term changes. Another application of these technologies is monitoring the impact of climate change in permafrost transition zones where peatlands form one of the major land cover types. Therefore, examples from boreal and subtropical environments are presented using the analysed ENVISAT ASAR Global mode (GM, 1 km resolution) data acquired in 2005 and 2006. In the case of the ENVISAT ASAR instrument, data availability of the rather coarse Global Mode depends on request priorities of other competing modes, but acquisition frequency may still be on average fortnightly to monthly depending on latitude. Peatland types covering varying permafrost regimes of the West Siberian Lowlands can be distinguished from each other and other land cover by multitemporal analyses. Up to 75% of oligotrophic bogs can be identified in the seasonal permafrost zone in both years. The high seasonal and interannual dynamics of the subtropic Okavango Delta can also be captured by GM time series. Response to increased precipitation in 2006 differsfrom flood propagation patterns. In addition, relative soil moisture maps may provide a valuable data source in order to account for external hydrological factors of such complex wetland ecosystems. URI: http://hdl.handle.net/10311/767 Files in this item: 1