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Search Results: 1 - 10 of 219509 matches for " Solomons C "
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Knowledge and attitudes of nursing staff and mothers towards kangaroo mother care in the eastern sub-district of Cape Town
N Solomons, C Rosant
South African Journal of Clinical Nutrition , 2012,
Abstract: Objectives: To determine the knowledge and attitude of nursing staff and mothers towards kangaroo mother care (KMC) in the eastern sub-district of Cape Town. Design: A cross-sectional descriptive study. Setting and subjects: A multi-stage sample of 30 kangaroo care mothers admitted to the Helderberg District Hospital (HDH); six nurses from the HDH; and nine nurses from the seven antenatal clinics that the mothers attended. The respondents were interviewed using a pretested questionnaire. Outcome measures: Knowledge, attitudes and acceptability of KMC. Results: Data were analysed using CDC Epi Info version 3.3.2, and Microsoft Excel software programmes. The majority of the mothers (83.3%) did not have prior knowledge of KMC. Sixty per cent of the nursing staff did not have any KMC training. The majority of the mothers were committed to KMC, were satisfied with the results (with regard to the weight gain of the infant), and indicated that they would continue to practise KMC at home. The majority of the hospital nursing staff was very positive toward KMC, and agreed that it was beneficial to both mother and infant. Conclusion: Most of the mothers lacked prior knowledge of KMC, and were only informed about it when they were admitted to the KMC ward. All of the nursing staff who were engaged in KMC (n = 15) had a positive attitude towards it.
Assessment of Cross Talk Between Fine Wire EMG from Soleus and Surface EMG from the Gastrocnemius
Prakash H,Solomons C,Devasahayam S,Subbian E
Indian Journal of Physical Medicine and Rehabilitation , 2010,
Abstract: Objectives: To assess the extent of cross talk betweendeep and superficial muscle using fine wireelectromyography (EMG) and surface EMG and toassess the correct location of the inserted fine wires inthe targeted muscles.Design: Observational.Setting: Movement analysis laboratory, Department ofPhysical Medicine and Rehabilitation (PMR), ChristianMedical College (CMC), Vellore.Participants: 12 healthy volunteersMain Outcome Measures: (i) timing of the EMG fromthe fine wires and surface electrodes during differentfunctional tasks, (ii) movement in response to stimulationthrough the fine wires, (iii) cross-correlation of the finewire EMG with the surface recorded EMG.Methods: EMG sampling was done with fine wireelectrodes in the soleus and with surface electrodes onthe gastrocnemius from healthy subjects. Crosscorrelation and fine wire stimulation was done to assessthe extent of cross talk between the two groups and assessthe accuracy of fine wire placement.Results: In 9 out of 12 subjects, the EMG timing (method1) and cross-correlation (method 2) strongly indicatedthat the fine wires were in the Soleus when compared tothe surface electrodes which were over theGastrocnemius. In the remaining three subjects (subjects1, 3 and 4) the fine wires were probably in theGastrocnemius.Conclusions: The Gastrocnemius and the Soleus musclesperform almost the same actions of plantar flexion butthere are differences in their temporal and spatial firingpatterns, as shown in the results above. These differencesand the location of the fine wire electrodes have beendetermined using cross correlation and stimulation throughthe fine wire.
ACCESSING ACADEMIC LANGUAGE: THE BENEFITS OF AN EXPLICIT STUDY OF LATIN AND GREEK ROOTS
Gail Solomons
Akroterion , 2012, DOI: 10.7445/52-0-54
Abstract: Many students in South Africa are entering university linguistically underprepared to cope with the meta-language of academe. Reasons for this are proposed by Language Development staff in the Academic Development Programme at UCT (Thesen et al., 1997:1-2): First, the language system, or code (in this case English, which is also the medium of instruction) can pose problems for students for whom it is not a main language. Second, the new formal register which students meet in the transition from school to university presents difficulties for almost all first time entering students. A third factor is previous educational experience.Students who have not had practice in the more abstract cognitively demanding tasks (in English or any other language) through which quality schooling prepares students for the transition to university, are at a disadvantage.
The distribution of intestinal helminth infections in a rural village in Guatemala
Anderson, Timothy J. C.;Zizza, Claire A.;Leche, Guisela M.;Scott, Marilyn E.;Solomons, Noel W.;
Memórias do Instituto Oswaldo Cruz , 1993, DOI: 10.1590/S0074-02761993000100010
Abstract: fecal egg count scores were used to investigate the distribution and abundance of intestinal helminths in the population of a rural village. prevalences of the major helminths were 41% with ascaris lumbricoides 60% with trichuris trichiura and 50% with necator americanus. all three parasites showed a highly aggregated distribution among hosts. age/prevalence and age/intensity profiles were typical for both a. lumbricoides and t. trichiura with the highest worm burdens in the 50-10 year old children. for hookworm both prevalence and intensity curves were convex in shape with maximum infection levels in the 30-40 year old age class. infected females had higher burdens of t. trichiura than infected males in all age classes of the population; there were no other effects of host gender. analysis of associations between parasites within hosts revealed strong correlations between a. lumbricoides and t. lumbricoides and t. trichiura. individuals with heavy infections of a. lumbricoides and t. trichiura showed highly significant aggregation within households. associations between a variety of household features and heavy infections with a. lumbricoides and t. trichiura are described.
A Solution to the Graceful Exit Problem in Pre-Big Bang Cosmology
G. F. R. Ellis,D. C. Roberts,D. Solomons,P. K. S. Dunsby
Physics , 1999, DOI: 10.1103/PhysRevD.62.084004
Abstract: We examine the string cosmology equations with a dilaton potential in the context of the Pre-Big Bang Scenario with the desired scale factor duality, and give a generic algorithm for obtaining solutions with appropriate evolutionary properties. This enables us to find pre-big bang type solutions with suitable dilaton behaviour that are regular at $t=0$, thereby solving the graceful exit problem. However to avoid fine tuning of initial data, an `exotic' equation of state is needed that relates the fluid properties to the dilaton field. We discuss why such an equation of state should be required for reliable dilaton behaviour at late times.
A conceptual exploration of values education in the context of schooling in South Africa
I Solomons, A Fataar
South African Journal of Education , 2011,
Abstract: This article is based on the assumption that values education has much to offer to a country that is struggling to overcome a fractured moral landscape. Pursuing a modest agenda, the focus of the article is on values and values education in the context of schooling in South Africa. We suggest that debates about what constitutes values and values education raise important philosophical and pedagogical questions about what values are and which values should be prioritized. We contend that it is unlikely that values education will in any significant way meet the expectations of South Africa’s Constitution and its national school curriculum intentions, if it is not underpinned by conceptual clarification of what values are in relation to the role that values education is expected to fulfil in South Africa’s schools. Intended as a conceptual investigation, the article explores different interpretations, tensions and assumptions that confront the notions of values and values education. We suggest that the insights from such a conceptual clarification could provide an appropriate platform not only for a coherent approach to values education, but also for the more effectual transfer and take up of values in schools. We favour a pragmatist conception based on the notion ‘shared goods’ in terms of which values education in schools can lay the basis for dialogical encounters necessary for addressing our country’s diverse and even divergent values orientations.
A conceptual exploration of values education in the context of schooling in South Africa
Inez Solomons,Aslam Fataar
South African Journal of Education , 2011,
Abstract: This article is based on the assumption that values education has much to offer to a country that is struggling to overcome a fractured moral landscape. Pursuing a modest agenda, the focus of the article is on values and values education in the context of schooling in South Africa. We suggest that debates about what constitutes values and values education raise important philosophical and pedagogical questions about what values are and which values should be prioritized. We contend that it is unlikely that values education will in any significant way meet the expectations of South Africa's Constitution and its national school curriculum intentions, if it is not underpinned by conceptual clarification of what values are in relation to the role that values education is expected to fulfil in South Africa's schools. Intended as a conceptual investigation, the article explores different interpretations, tensions and assumptions that confront the notions of values and values education. We suggest that the insights from such a conceptual clarification could provide an appropriate platform not only for a coherent approach to values education, but also for the more effectual transfer and take up of values in schools. We favour a pragmatist conception based on the notion 'shared goods' in terms of which values education in schools can lay the basis for dialogical encounters necessary for addressing our country's diverse and even divergent values orientations.
Can quantum wormholes set $Lam$ 0
D. H. Coule,D. Solomons
Physics , 1993,
Abstract: We find the quantum analogues of Carlini-Mijic wormholes and consider their application to the cosmological constant problem. In a simple model with $\Lambda$ only we differ with the results of Strominger.
A Solution of the Convective-Diffusion Equation for Solute Mass Transfer inside a Capillary Membrane Bioreactor
B. Godongwana,D. Solomons,M. S. Sheldon
International Journal of Chemical Engineering , 2010, DOI: 10.1155/2010/738482
Abstract: This paper presents an analytical model of substrate mass transfer through the lumen of a membrane bioreactor. The model is a solution of the convective-diffusion equation in two dimensions using a regular perturbation technique. The analysis accounts for radial-convective flow as well as axial diffusion of the substrate specie. The model is applicable to the different modes of operation of membrane bioreactor (MBR) systems (e.g., dead-end, open-shell, or closed-shell mode), as well as the vertical or horizontal orientation. The first-order limit of the Michaelis-Menten equation for substrate consumption was used to test the developed model against available analytical results. The results obtained from the application of this model, along with a biofilm growth kinetic model, will be useful in the derivation of an efficiency expression for enzyme production in an MBR. 1. Introduction Since the first uses of hollow-fiber membrane bioreactors (MBRs) to immobilize whole cells were reported in the early 1970s, this technology has been used in as wide ranging applications as enzyme production to bone tissue engineering. One of the current research areas of interest into biofilm-attached membrane bioreactors (MBRs) is the development of cost-effective and environmentally friendly methods of producing various primary and secondary metabolites from bacterial, fungal, and yeast cells. These include: manganese and lignin peroxidase, secreted by the fungus Phanerochaete chrysosporium [1, 2]; actinorhodin, a noncommercial antibiotic produced by the filamentous bacterium Streptomyces coelicolor [3]; glutamic acid, an ingredient in flavour enhancers of meats and vegetables, secreted by the bacterium Corynebacterium glutamicum [4]; ethanol, extracted from the yeast Saccharomyces cerevisiae [5]; and many others. With the exception of ethanol, these bioproducts are generally classified as products of intermediate value [6]. It has been reported that bioreactor productivity, in the production of these types of products, greatly impacts on the product cost [7]. The productivity of biofilm-attached MBRs is determined in large by the biomass growth, and one of the most important factors that influence biomass growth is the availability and transport of nutrients through the bioreactor [8, 9]. The momentum transfer of solutes through MBRs has been thoroughly studied, from a theoretical and experimental perspective, for a number of configurations [10–15]. Similarly, the mass transfer has received considerable attention [8, 9, 16–22]. With the exception of the models developed
Bounce behaviour in Kantowski-Sachs and Bianchi Cosmologies
Deon Solomons,Peter Dunsby,George Ellis
Physics , 2001, DOI: 10.1088/0264-9381/23/23/001
Abstract: Many cosmological scenarios envisage either a bounce of the universe at early times, or collapse of matter locally to form a black hole which re-expands into a new expanding universe region. Energy conditions preclude this happening for ordinary matter in general relativistic universes, but scalar or dilatonic fields can violate some of these conditions, and so could possibly provide bounce behaviour. In this paper we show that such bounces cannot occur in Kantowski-Sachs models without violating the {\it reality condition} $\dot{\phi}^2\geq 0$. This also holds true for other isotropic spatially homogenous Bianchi models, with the exception of closed Friedmann-Robertson-Walker and Bianchi IX models; bounce behaviour violates the {\em weak energy condition} $\rho\geq 0$ and $\rho+p\geq 0$. We turn to the Randall-Sundrum type braneworld scenario for a possible resolution of this problem.
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