787 research outputs found
Air Pollution and Mortality for 60 US Cities in 1960
No full textData includes measurements on mortality rate and explanatory variables(air-pollution, socio-economic and meteorological) for 60 US cities in 1960. This data was originally published in McDonald, G.C. and Schwing,R.C. (1973) 'Instabilities of regression estimates relating air pollution to mortality', Technometrics, vol.15, 463-482. It was redistributed through Carnegie Mellon University's StatLib (lib.stat.cmu.edu
Book Reviews
No full textBook 1Book Title: Human PhysiologyBook Authors: B.J. Meyer, H.S. Meij & A. C. MeyerIllustrated. R113,00 01AT incl.). Kenwyn: Juta. 1994. ISBN 0-7021-2949-6.Book 2Book Title: The Urban Health Crisis: Strategies for Health for All in the Face of Rapid UrbanizationBook Author: W.H.O.Pp. xvi + 80. Sw.Fr.20,0/US18,00. Geneva: WHO. 1993. ISBN 92-4-156159-9.Book 3Book Title: A Guide for Epidemiological Studies of Oral Manifestations of HIV-InfectionBook Authors: S.L. Melnick, R. Nowjack-Raymer, D. V. Kleinman & P. A. SwangoPp. ix + 27. Sw.Fr.10,00. Geneva: WHO. 1993. ISBN 92-4-154453-8.Book 4Book Title: Neurological EmergenciesBook Author: R.A.C. Hughes (Ed.)Pp. viii + 357. Illustrated. £22,00. London: BMJ. 1994. ISBN 0-7279-0756-5.Book 5Book Title: Surrogate Motherhood: a Worldwide View of the IssuesBook Author: Diederika PretoriusPp. xxii + 219. 54,75. Illinois: Charles C. Thomas. 9194. ISBN 0-398-05787-7
Credit Card Security
No full textAuthor: Anup G.C.
Year: 2013
Subject of thesis: Credit Card Security
Number of pages: 36+2
Credit Card is a widely used electronic chip for easy transactions. The main purpose of the report was to show the security measures of transaction by credit cards. The purpose was to give information about credit cards and how they were introduced. The thesis reportcontained the types of card theft with examples and sited the various protocols used for online transactions. The aim of the thesis project was to conclude whether the card security provided by the banks is safe enough.
The thesis report contained information about many online resources as well as liable books. Many news articles were also considered while writing the report for the card theft records.
The thesis report described both the positive and negative aspects of the protocols used for card securities. Result showed that misuse and complicated processes of protocols has led the identity theft to transactions. To conclude, although many security measures are implemented for the secure transactions, credit card fraud activities are happening in a weekly basis
Electromagnetisch en vermoeiingsonderzoek aan gesloten ophaalkabels in mijnschachten
No full textMechanical, Maritime and Materials Engineerin
Pressure losses in pneumatic transport
No full textA model is derived to calculate the pressure losses originating from the dilute phase pneumatic transport of coarse particles in the horizontal stationary flow regime. The model is based on the balance of drag forces and frictional forces acting on the particles during pneumatic transport. The particles are characterized by the particle terminal velocity, the particle âwall sliding friction coefficient and the coefficient of restitution between particles and wall. The influence of the inhomogeneous particle distribution in the pipe is taken into account using a particle density distribution resembling the barometric height formula. The model is verified experimentally by the use of particle velocity measurements and particle-wall collision measurements during pneumatic transport. For this purpose measuring techniques and tools have been developed. A Froude number, based on the mean square value of the radial particle-velocity component, appears in the model as an empirical parameter. This Froude number increases with increasing average air velocity but may also depend on the pipe diameter and the solids-mass flow to some extent. However this dependency could not be quantified and may restrict the accuracy of pressure loss predictions with the model. The assumption of a linear relationship between the Froude number and the average air velocity provides scaling and prediction possibilities for pressure losses.Mechanical Maritime and Materials Engineerin
Removal of scattered surface waves from seismic data
No full textElectrical Engineering, Mathematics and Computer Scienc
Imaging and Suppressing Near-Receiver Scattered Seismic Waves
No full textCivil Engineering and Geoscience
Community-based survey versus sentinel site sampling in determining the nutritional status of rural children: Implications for nutritional surveillance and the development of nutritional programmes
No full textA study of the anthropometric status of under-5-year-olds was conducted in the Nqutu district of Kwazulu by means of a representative community-based sample and concurrent samples from primary health care clinics, preschools and primary schools.The first objective of this exercise was to determine the extent of acute nutritional stress in the district as an indication of the appropriateness of food relief efforts in the region. The absence of wasting and the high prevalence of stunting (37,5%) in the community-based sample suggested that the main problem is chronic socioeconomic underdevelopment, rather than a severe or immediate lack of food. The fact that fewer than 20% of households are in any way reliant on domestic production for their maize requirements explains why the recent drought has not had a greater impact on the nutritional status of this vulnerable group. This study confirms that the more recent emphasis of the National Nutrition and Social Development Programme on social development is appropriate.An equally important objective of this study was to evaluate the usefulness of clinics, preschools and schools as sites for the collection of anthropometric data and the development of nutritional programmes. This preliminary attempt to develop the methodology for district-based nutrition surveillance suggested that all these sites have limitations both in respect of data collection and community access. The implications of using these sites and the developments needed to improve their usefulness in a future nutrition surveillance system are discussed
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