African statistics have come of age - Interview: Pali Lehohla, Statistician-General of Statistics South Africa

Lehohla, Pali

doi:10.18356/758d1f68-en

Cited by 46 publications

(55 citation statements)

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“…Delft was established in the early 1990s as a racially integrated township, with Black African and Coloured residents. The majority of its 150,000 residents are unemployed and living in poverty (Lehohla, 2012). The target population was adult methamphetamine smokers.…”

Section: Methodsmentioning

confidence: 99%

Respondent driven sampling is an effective method for engaging methamphetamine users in HIV prevention research in South Africa

Kimani

Watt

Merli

et al. 2014

Drug and Alcohol Dependence

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Background South Africa, in the midst of the world’s largest HIV epidemic, has a growing methamphetamine problem. Respondent driven sampling (RDS) is a useful tool for recruiting hard-to-reach populations in HIV prevention research, but its use with methamphetamine smokers in South Africa has not been described. This study examined the effectiveness of RDS as a method for engaging methamphetamine users in a Cape Town township into HIV behavioral research. Methods Standard RDS procedures were used to recruit active methamphetamine smokers from a racially diverse peri-urban township in Cape Town. Effectiveness of RDS was determined by examining social network characteristics (network size, homophily, and equilibrium) of recruited participants. Results Beginning with 8 seeds, 345 methamphetamine users were enrolled over 6 months, with a coupon return rate of 67%. The sample included 197 men and 148 women who were racially diverse (73% Coloured, 27% Black African) and had a mean age of 28.8 years (SD=7.2). Social networks were adequate (mean network size >5) and mainly comprised of close social ties. Equilibrium on race was reached after 11 waves of recruitment, and after ≤3 waves for all other variables of interest. There was little to moderate preference for either in- or out-group recruiting in all subgroups. Conclusions Results suggest that RDS is an effective method for engaging methamphetamine users into HIV prevention research in South Africa. Additionally, RDS may be a useful strategy for seeking high-risk methamphetamine users for HIV testing and linkage to HIV care in this and other low resource settings.

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Section: Methodsmentioning

confidence: 99%

Respondent driven sampling is an effective method for engaging methamphetamine users in HIV prevention research in South Africa

Kimani

Watt

Merli

et al. 2014

Drug and Alcohol Dependence

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“…The analysis shows that the average monthly 367 income per head per day is $1.03 in the NuRa area and $1.06 in the Solar Vision area. According to a 368 statistical report, the average income for Polokwane, Vhembe and Greater Tubatse municipalities are 5768 369 ZAR, 4120 ZAR and 3831 ZAR/month respectively, the province average (Limpopo) is 4737 ZAR/month, 370 the average income for Umkhanyakude municipality is 3933 ZAR/month and the province average is 8600 371 ZAR/month [35,36]. The income of the households in the surveyed concession areas are far below the 372 23 provincial and municipal averages.…”

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confidence: 99%

Illuminated but not electrified: An assessment of the impact of Solar Home System on rural households in South Africa

et al. 2015

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8The introduction of the off-grid electrification program in South Africa using the Solar Home System (SHS) 9 was a central component of the government policy aimed at bringing development to un-electrified 10households. An assessment of the performance of SHS in many countries provided little evidence to support 11 the development impact of the system. The general perception is that the SHS program is wasting 12 government funds and has no hope of achieving the set objectives. Previous scientific reports have 13 concluded that SHS is the most viable technology for bringing about socio-economic development to rural 14 households. Most of these conclusions have been based on one sided arguments and largely on anecdotal 15evidence. This study provides a pluralistic view of the subject from the perspective of the energy service 16 companies (ESCOs) and the households using the equipment. The development impact of SHS is subjected 17 to scientific analysis by investigating the economic and social dimensions of the program. Additionally, the 18 sustainability of the South African SHS program is assessed by investigating the challenges facing the 19ESCOs and the households. The study reveals that illumination provided by SHS electricity has profound 20 impact on the livelihoods of rural households. Due to the limited capacity of SHS for productive and thermal 21 use, there are limited direct economic benefits to the households. The associated economic impact is 22 peripheral to the secondary usage of SHS electricity. SHS has improved the productivity of small scale 23 business owners who utilize the light from SHS to do business at night. Irregularities in payment of subsidy 24 funds and energy bills, high operation cost, non-optimal use of SHS, grid encroachment, and lack of 25 customer satisfaction contribute to make the business unsustainable for the ESCOs. 26 27 2 28 Introduction 29The change in political governance in South Africa in 1994 also led to a major policy review of the energy 30 sector [1]. The government changed the focus of an energy policy based on separate development to an 31 inclusive policy that embraces the energy needs of disadvantaged households. This was evident with the 32 implementation of the National Electrification Program (NEP), a precursor to the Electricity-For-All 33 program of 1994 [2]. The objective in the revised policies is to extend development to the large segments 34 of the population that were deprived during the apartheid regime. One of the basic elements of NEP is the 35Free Basic Electrification (FBE) policy, which is aimed at providing access to electricity to all South 36Africans [3]. This policy seeks to provide ways and means through which government interventions can 37 bring about relief to poor un-electrified households and ensure optimal socio-economic benefits from the 38 NEP [4]. 39In order to achieve this objective the Department of Energy (DOE) awarded contracts to provide electricity 40 to un-electrified rural households to six consortia known as the ...

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“…The population growth rate in the Thukela district is 0.17%/year (Lehohla, 2012). Increased livestock population in the rural community in this district, besides its commercial value, is a sign of more wealth and respect (Johnston et al, 2014;Salomon, 2006).…”

Section: Demand For Land Usementioning

confidence: 99%

“…The M parameter determines how this decreases with depth ; between 0-10000 (Easton et al, 2010;USDA, 2016; In relation to scenario development for the land-use model, past trends of population, livestock, settlement, and land-use change are used. The population growth rate in the Thukela district is 0.17%/year (Lehohla, 2012). Increased livestock population in the rural community in this district, besides its commercial value, is a sign of more wealth and respect (Johnston et al, 2014;Salomon, 2006).…”

mentioning

confidence: 99%

Integrated Modeling of Land and Water Resources in two African Catchments

Yalew¹

2018

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Although all care is taken to ensure integrity and the quality of this publication and the information herein, no responsibility is assumed by the publishers, the author nor UNESCO-IHE for any damage to the property or persons as a result of operation or use of this publication and/or the information contained herein. A pdf version of this work will be made available as Open Access via http://repository.tudelft.nl/ihe This version is licensed under the Creative Commons SUMMARYLand and water are two of the most important and interacting natural resources that are critical for human survival and development. Growing population and global economic expansion are accelerating the demand for land and water for uses such as agriculture, urbanization, irrigation, hydropower, and industrialization. The land surface changes dynamically due to these demands and other socio-economic drivers. Biophysical factors such as topographic suitability, climate change, and rainfall variability further influence landuse changes and land-use change decisions. Water resources are likewise experiencing pressure from overuse, pollution, and changes in hydrologic processes as a result of both socio-economic and biophysical factors.Land and water resources are considered to have strong interactions. Although the science of this interaction is not new, the two are typically managed under separate governance systems (Le Maitre et al., 2014). As a result, land-use change and hydrology or water resources are studied usually separately. Modelers and model developers reproduced the existing separation in governance of land and water resources in their respective models, which gave rise to mild treatment of one of the resources when analyzing the other. The result is that hydrology and water resources are often considered to be processes and resources affected only by biophysical components, ignoring anthropogenic contributions that may actually influence such characteristics through direct effects on land-use, for instance.The need to understand and explicitly represent the interaction between water resources on the one hand and land-use changes with its drivers on the other is imperative for sustainable management of integrated natural resources management in general and land and water resources management in particular. In recent years, interesting sub-disciplines such as 'socio-hydrology' are emerging which recognize and emphasize the importance of socioeconomic and anthropogenic effects on hydrologic and water resources analysis. Interaction and feedback between land-use and water resources is still not explicitly and dynamically represented in most scientific modeling tools related to land and water, however.Furthermore, often due to limitations of access and computing resources, frameworks for communicating integrated assessment and modeling in a way that can be operational to resource managers and decision makers related to such resources is limited. This is especially evident in developing regions. After the land-use models calibrated and...

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African statistics have come of age - Interview: Pali Lehohla, Statistician-General of Statistics South Africa

Cited by 46 publications

References 0 publications

Respondent driven sampling is an effective method for engaging methamphetamine users in HIV prevention research in South Africa

Respondent driven sampling is an effective method for engaging methamphetamine users in HIV prevention research in South Africa

Illuminated but not electrified: An assessment of the impact of Solar Home System on rural households in South Africa

Integrated Modeling of Land and Water Resources in two African Catchments

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