Response of instream animal communities to a short-term extreme event and to longer-term cumulative impacts in a strategic water resource area, South Africa

2016 ◽  
Vol 41 (1) ◽  
pp. 29-40 ◽  
Author(s):  
SH Foord ◽  
PSO Fouché
Keyword(s):  
South Africa ◽  
Water Resource ◽  
Extreme Event ◽  
Cumulative Impacts ◽  
Short Term ◽  
Animal Communities

Methods for Calculation of Annual and Extreme Overflow Events from Combined Sewer Systems

1984 ◽  
Vol 16 (8-9) ◽  
pp. 311-325 ◽  
Author(s):  
N B Johansen ◽  
P Harremoës ◽  
M Jensen
Keyword(s):  
Extreme Event ◽  
Short Term ◽  
Sewer Systems ◽  
Extreme Load ◽  
Combined Sewer ◽  
Receiving Waters ◽  
Water Problems ◽  
Source Of Pollution ◽  
Receiving Water

Overflow from combined systems constitute an increasing source of pollution of receiving waters, as compared to daily wastewater discharges which undergo treatment to a still higher extent. The receiving water problems from overflows are significant both in a long term scale (mean annual load) and in a short term scale (extreme event load). A method for computation of both annual and extreme load is presented. It is based on historical rain series and the use of a time-area model and simple pollutant mixing model in runoff calculation. Statistical calculations for both mean annual load and extreme events have been applied to the computed overflow series. Based on the computerized method simple manual calculations methods have been developed, resulting in graphs and tables for annual load and extreme load.

scholarly journals Factors Explaining Debt Firm Policy: A Comparison between Five Intercontinental Countries

2017 ◽  
Vol 7 (1) ◽  
pp. 285
Author(s):  
Ben Said Hatem
Keyword(s):  
South Africa ◽  
Capital Structure ◽  
Firm Growth ◽  
Debt Ratio ◽  
Firm Age ◽  
Growth Opportunities ◽  
Short Term ◽  
Return On Assets ◽  
Debt Policy

We test the factors explaining the debt policy of firms across five continents. To this end, we examine samples from South Africa, Australia, Brazil, India and Spain over a period of 8 years from 2003 to 2010. The results manipulate differences in debt policy for all countries (except for the variable Return on Assets, ROA). As for the effect of activity sectors on firm debt policy, higher performance led to lower firm debt ratios. Furthermore, we concluded some differences in other variables. Higher tangibility ratios for firms from South Africa, India and Spain led to higher capital structure ratios. Larger firms from Brazil led to lower short term debt ratio. We could not find evidence on the effect of firm growth opportunities in Brazil and India. Furthermore, we concluded to a positive and a statistically significant effect of liquidity ratio for Australia and India, and a positive and a statistically significant effect of firm age for firms from Spain.

scholarly journals Returning home to die: Circular labour migration and mortality in South Africa 1

2007 ◽  
Vol 35 (69_suppl) ◽  
pp. 35-44 ◽  
Author(s):  
Samuel J. Clark ◽  
Mark A. Collinson ◽  
Kathleen Kahn ◽  
Kyle Drullinger ◽  
Stephen M. Tollman
Keyword(s):  
South Africa ◽  
Rural Areas ◽  
Urban Areas ◽  
Terminal Illness ◽  
Event History Analysis ◽  
Historical Period ◽  
Short Term ◽  
History Analysis ◽  
Working Age

Aim: To examine the hypothesis that circular labour migrants who become seriously ill while living away from home return to their rural homes to convalesce and possibly to die. Methods: Drawing on longitudinal data collected by the Agincourt health and demographic surveillance system in rural northeastern South Africa between 1995 and 2004, discrete time event history analysis is used to estimate the likelihood of dying for residents, short-term returning migrants, and long-term returning migrants controlling for sex, age, and historical period. Results: The annual odds of dying for short-term returning migrants are generally 1.1 to 1.9 times (depending on period, sex, and age) higher than those of residents and long-term returning migrants, and these differences are generally highly statistically significant. Further supporting the hypothesis is the fact that the proportion of HIV/TB deaths among short-term returning migrants increases dramatically as time progresses, and short-term returning migrants account for an increasing proportion of all HIV/TB deaths. Conclusions: This evidence strongly suggests that increasing numbers of circular labour migrants of prime working age are becoming ill in the urban areas where they work and coming home to be cared for and eventually to die in the rural areas where their families live. This shifts the burden of caring for them in their terminal illness to their families and the rural healthcare system with significant consequences for the distribution and allocation of health care resources.

scholarly journals The continuous market cycle of the short term insurance industry

2012 ◽  
Vol 2 (1) ◽  
pp. 22-29
Author(s):  
Liezel Essel ◽  
Frederik J. Mostert ◽  
Jan Hendrik Mostert
Keyword(s):  
South Africa ◽  
Insurance Industry ◽  
Emerging Market ◽  
Literature Study ◽  
Short Term ◽  
Financial Decision Making ◽  
Empirical Survey ◽  
Term Insurance ◽  
Financial Decision ◽  
The Impact

The short-term insurance industry is a cyclical type of business due to the impact of the continuous market cycle. This cycle has a growth phase, soft market phase, hard market phase and a break-even phase. The objective of the research paper focuses on the improvement of financial decision-making when executives of the short-term insurance industry are managing their business during the various phases of the continuous market cycle. Both a literature study and an empirical survey were necessary to achieve the research objective. The empirical survey included the contributions of the top nine commercial and corporate short-term insurers in South Africa. They represented more than 77% of the total gross written premiums in 2009 and can thus be considered as the leaders of the short-term insurance industry in this country. The conclusions of the study should be valuable to other developing countries with emerging market economies as South Africa is also classified as such. The study focused on the various factors which may cause the continuous market cycle, the problem areas which the executives experience concerning the continuous market cycle, and how often various factors are adjusted by the short-term insurers to account for changes in the continuous market cycle.

scholarly journals The claims handling process of property insurance in South Africa

2011 ◽  
Vol 8 (4) ◽  
pp. 155-164
Author(s):  
D Naudé ◽  
Frederik J. Mostert ◽  
Jan Hendrik Mostert
Keyword(s):  
South Africa ◽  
Emerging Market ◽  
Literature Study ◽  
Short Term ◽  
Property Insurance ◽  
Financial Decision Making ◽  
Empirical Survey ◽  
Term Insurance ◽  
Financial Decision ◽  
Main Factors

Property insurance is the second largest class of short-term insurance in South Africa. As South Africa is a developing country and has an emerging market economy, the conclusions of this paper, which are based on a literature study and an empirical survey, should accordingly also be valuable to short-term insurers in other countries with emerging market economies. The objective of this research paper endeavors to improve financial decision-making relating to the claims handling process of property insurance. It therefore focuses on the insurance of buildings, the contents of buildings, as well as all-risks insurance. After paying attention to the main factors, necessary to contemplate in the claims handling process of each of the three types of subject matter, the applicable problem areas and the effectiveness of the short-term insurers who participate in the empirical survey, are addressed.

scholarly journals Using record linkage to assess the impact of late presentation for care and treatment on short-term mortality among HIV-infected adults in rural South Africa.

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Chodziwadziwa Whiteson Kabudula ◽  
Georges Reniers ◽  
Francesc Xavier Gómez-Olivé ◽  
Kathleen Kahn ◽  
Stephen Tollman
Keyword(s):  
South Africa ◽  
Cell Count ◽  
Late Presentation ◽  
Short Term ◽  
Cd4 Cell Count ◽  
Short Term Mortality ◽  
Care And Treatment ◽  
Cd4 Cell ◽  
The Impact ◽  
Rural South Africa

ABSTRACT ObjectivesTo assess the impact of late presentation (CD4 cell count <200 cells/μl at presentation) for care and treatment on short-term mortality (death within a year of presentation) among HIV-infected adults in rural South Africa. ApproachWe applied deterministic and probabilistic record linkage approaches to link adult patients seeking care and treatment for HIV from a health facility between 2007 and 2013 to population under continuous surveillance by the Agincourt Health and Demographic Surveillance System (HDSS) in rural northeast South Africa. The resulting record-linked dataset was thereafter analysed to estimate short-term mortality (death within a year of presentation) differences in late presenters (initial presentation at health facility with CD4 cell count less than 200 cells/μl) and early presenters (presentation with CD4 cell count of 200 or more cells/μl). In the linked dataset, CD4 cell count was extracted from the health facility database where as date of death came from the HDSS database. ResultsA total of 3,553 patients who sought care and treatment for HIV at Bhubhezi clinic between 2007 and 2013 were linked to the Agincourt HDSS surveillance population. Proportion of patients classified as late presenters was 60.9%. Short-term mortality was 8.9% (317/3,553): 11.1% among those who presented late and 5.5 % among those who presented early (P<0.001). ConclusionRecord linkage facilitated the assessment of the impact of late presentation for care and treatment on short-term mortality among HIV-infected adults in rural South Africa. In the population studied, late presentation is high and is contributing to high mortality among people living with HIV. Strategies that would facilitate early presentation are needed in order to reduce mortality among people living with HIV.

SHORT TERM MANAGEMENT OF WATER RESOURCE SYSTEMS

2000 ◽  
pp. 631-639
Author(s):  
R.M. Faye ◽  
S. Sawadogo ◽  
S. Gonzalez-Rojo ◽  
F. Mora-Camino
Keyword(s):  
Water Resource ◽  
Short Term ◽  
Term Management ◽  
Resource Systems

SOUTH AFRICA'S RESERVE: CHALLENGES AND RECOMMENDATIONS FOR IMPLEMENTING SUSTAINABLE DEVELOPMENT POLICIES

2006 ◽  
Vol 08 (01) ◽  
pp. 61-83 ◽  
Author(s):  
ALISON BODURTHA QUA-ENOO ◽  
KATE SCHENDEL ◽  
NEVIL QUINN
Keyword(s):  
South Africa ◽  
Sustainable Development ◽  
Resource Management ◽  
Water Resource ◽  
Water Resource Management ◽  
Political Support ◽  
Successful Implementation ◽  
Human Needs ◽  
Challenges And Opportunities ◽  
Key Issues

South Africa introduced a visionary policy for water resource management in 1998. The South African National Water Act (Act 36 of 1998) contains several innovative mechanisms with the potential to transform water resource management within the country and abroad. The Reserve is one of these innovations, guaranteeing a basic water requirement for both human needs and ecosystem health. This article discusses the process of Reserve determination and implementation in South Africa and identifies challenges and opportunities for successful implementation. Based on the perceptions of 28 water managers, consultants, and researchers, the key issues and recommendations for improving implementation are presented. The major findings indicate that political support, the capacity of the implementing organization, supporting policies, strong linkages between policy actors and effective monitoring programs are key issues in the successful implementation of sustainable development policy mechanisms.

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