FACTORS INFLUENCING INTERNAL AND EXTERNAL CREDIT RATIONING AMONG SMALL-SCALE FARM HOUSEHOLDS IN KWAZULU-NATAL

The Heckman two-stage procedure is used to identify and rank the determinants of internal and external credit rationing in rural households using data sourced from two districts in the former KwaZulu homeland. The results confirm international findings that high transaction costs faced by rural households limit their access to formal credit markets. Income and savings levels are significant determinants of the level of credit obtained, with savings acting as a substitute for credit. Better access to financial markets will require public investment in rural infrastructure, literacy and vocational training, and legal reform in order to lower transaction costs, improve income levels, and facilitate the efficient use of collateral. Savings lose their value as a source of information when lending institutions are distinct from savings institutions, and moveable assets carry high collateral-specific risk in the absence of an efficient judicial system.Agricultural Finance,

POGO Instabilities Suppression Evaluation

A dynamic (frequency response) analysis was made of a liquid oxygen feed system consisting of a low-speed inducer, a high-speed main pump and a positive displacement pulser utilized for simulating pogo induced pressure oscillations. Based on the results of the analysis, an active control system for suppression of pulser generated pressure oscillations was designed, fabricated and tested. The test results verified that the suppressor was effective in attenuating the generated pressure oscillations over the frequency range from 10 to 30 Hz

Identifying the water poor: an indicator approach to assessing water poverty in rural Mexico

Water scarcity is the focus of considerable research emphasizing the vulnerability of communities to physical water supply. Recent approaches to the determination of water scarcity that incorporate social, economic and political factors with physical measures of water availability include the Water Poverty Index (WPI). Through a rigorous analysis that aims to analyze and contrast the results of the WPI with those determined through extensive fieldwork and community consultation, this research aims to fulfil the following core objectives: 1. to determine the impact of scale on water poverty assessments; 2. to test the robustness of the WPI and validate its accuracy as a measurement of water poverty; 3. to assess the ability of the WPI to accurately reflect local perceptions of water poverty. Mexico has an astounding array of water challenges where even areas with a natural abundance of water face difficulties in the provision of water supply. Particularly compelling is the region of Los Altos. Situated within Mexico's most water-rich state, access to water is exceptionally constrained. This contrast of scale was the incentive for selecting the rural communities of Pozuelos and El Mash to examine water poverty in detail. A careful examination of water poverty was first undertaken at the state level. Next, water poverty was assessed in the community through an extensive field study, comprising a thorough assessment of infrastructure, water quality analyses, researcher observations, informal interviews and participatory focus groups. These data provided the basis for calculating the WPI at the community scale. Analyses were then undertaken focusing on statistical correlations using Pearson's product moment correlation coefficient informed by researcher observations, regression analyses and community perceptions. As the only indicator to assess the multiple dimensions of water poverty, the WPI, by definition, is the best tool available. However, the issue of scale continues to be challenging whilst predictions of water poverty are complex and marred by subjectivity. A lack of consensus surrounding appropriate variables is problematic and inhibits comparisons across localities. Community perceptions of water poverty at the community level differ from results obtained using the WPI further questioning its reliability. Notwithstanding, the WPI highlights the need for a multi-dimensional approach to the determination of water poverty by demonstrating the lack of relationship between water resources availability and overall water poverty across scales. However, this research has demonstrated the complex nature of the WPI rendering its application in practice quite difficult

Early Islamic North Africa: A New Perspective

This volume proposes a new approach to the Arab conquests and the spread of Islam in North Africa. In recent years, those studying the Islamic world have shown that the coming of Islam was not marked by devastation or decline, but rather by considerable cultural and economic continuity. In North Africa, with continuity came significant change. Corisande Fenwick argues that the establishment of Muslim rule also coincided with a phase of intense urbanization, the appearance of new architectural forms (mosques, housing, hammams), the spread of Muslim social and cultural practices, the introduction of new crops and manufacturing techniques and the establishment of new trading links with sub-Saharan Africa, Europe and the Middle East. This concise and accessible book offers the first assessment of the archaeology of early Islamic North Africa (7th–9th centuries), drawing on a wide range of new evidence from Morocco, Algeria, Tunisia and Libya. It lays out current debates about its interpretation and suggests new ways of thinking about this crucial period in world history. Essential reading for those interested in understanding the impact of the Arab conquests and the spread of Islam on daily life, it will also challenge students of archaeology and history to think in new ways about North Africa, the earliest Islamic empires and states and the transition from the Roman to the medieval Mediterranean

Linear force and moment equations for an annular smooth shaft seal perturbed both angularly and laterally

Coefficients are derived for equations expressing the lateral force and pitching moments associated with both planar translation and angular perturbations from a nominally centered rotating shaft with respect to a stationary seal. The coefficients for the lowest order and first derivative terms emerge as being significant and are of approximately the same order of magnitude as the fundamental coefficients derived by means of Black's equations. Second derivative, shear perturbation, and entrance coefficient variation effects are adjudged to be small

Line-of-sight effects on observability of kink and sausage modes in coronal structures with imaging telescopes

Kink modes of solar coronal structures, perturbing the loop in the direction along the line-of-sight (LOS), can be observed as emission intensity disturbances propagating along the loop provided the angle between the LOS and the structure is not ninety degrees. The effect is based upon the change of the column depth of the loop (along the LOS) by the wave. The observed amplitude of the emission intensity variations can be larger than the actual amplitude of the wave by a factor of two and there is an optimal angle maximizing the observed amplitude. For other angles this effect can also attenuate the observed wave amplitude. The observed amplitude depends upon the ratio of the wave length of kink perturbations to the width of the structure and on the angle between the LOS and the axis of the structure. Sausage modes are always affected negatively from the observational point of view, as the observed amplitude is always less than the actual one. This effect should be taken into account in the interpretation of wave phenomena observed in the corona with space-borne and ground-based imaging telescopes

Transverse waves in a post-flare supra-arcade

Observations of propagating transverse waves in an open magnetic field structure with the Transition Region And Coronal Explorer (TRACE) are presented. Waves associated with dark tadpole-like sunward moving structures in the post-flare supra-arcade of NOAA active region 9906 on the 21st of April 2002 are analysed. They are seen as quasi-periodic transverse displacements of the dark tadpole tails, with periods in the range of 90–220 s. Their phase speeds and displacement amplitudes decrease as they propagate sunwards. At heights of 90 and 60 Mm above the post-flare loop footpoints the phase speeds are in the ranges 200–700 km s −1 and 90–200 km s −1 respectively. Furthermore, for consecutive tadpoles the phase speeds decrease and periods increase as a function of time. The waves are interpreted as propagating fast magnetoacoustic kink waves guided by a vertical, evolving, open structure

National counter-terrorism (C-T) policies and challenges to human rights and civil liberties: Case study of United Kingdom

In the UK the rise post-2005 in “home-grown” terrorism, relying to a significant extent on strikes on soft targets by “self-starters,” means that the search for effective preventive measures remains a continuing concern. Below a number of the preventive counter-terror measures adopted post-9/11, and incrementally strengthened in response to the current threat, are found to fall into three categories and represent interventions at the stages in the path toward attacks. This chapter focuses on selected examples of these preventive measures. In terms of three key stages, firstly, there is the attempt to prevent radicalization, under the “Prevent” strategy. A second strategy relies on taking certain measures to control the activities of those considered likely – on the balance of probabilities – to engage in terrorist-related activity. A third preventive strategy relies on the special terrorism offences under the Terrorism Acts 2000 and 2006, as amended, intended to allow for intervention at a very early stage in terrorist plots and in preparing or instigating terrorist acts (“precursor” offences)

Missing Links In Understanding The Relationship Between Leadership And Organizational Performance

Both researchers and practitioners have devoted considerable attention to the potential effects of leadership on organizational performance. Despite increased research into the leadership-performance relationship, major gaps still remain in our understanding. This paper reviews the published literature and identifies these gaps, highlighting implications for future research into the leadership-performance relationship.