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The present study aims to quantify the heavy metals contents in the sediments of Lake Burullus. Cu, Pb, Zn, and Cd were analyzed using ICP spectrometer. The contamination factors (CF) were calculated for each clement. The CFs were found to fall in the following sequence : Cd > Pb > Cu > Zn. The pollution load index (PLI) was also estimated. Chernoff face analysis was used to represent the pollution extent at different stations. The level of pollution by heavy metals is mainly induced by the...
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This study constructs school life tables from 1993-94 enrollment data in Egypt and examines the duration of schooling and dropout patterns. Enrollment data were obtained from the Information and Computer Services Directorate of the Egyptian Ministry of Education. Enrollment pertained to primary and preparatory schools general secondary schools 3-year technical secondary schools 5-year technical secondary schools teachers training colleges and one-classroom schools. Students were grouped by...
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INTRODUCTION Studies of African American education in the 19th century have focused primarily on developments after the Civil War, concentrating on the creation of segregated schools in the South (Bond, 1934; Frazier, 1949; Woodson, 1968, 1918/1969; Woodson & Wesley, 1922/1966). Prior to the antebellum era, documentation was sketchy and few schools existed in either the North or the South. The education of northern Blacks was decidedly different from that of southern Blacks. Much of what is...
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(1995). Growing Up Assimilating: An Oral History of Colonial Missionary Education in Mozambique. Paedagogica Historica: Vol. 31, The Colonial Experience in Education, pp. 213-231.
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The planning, development and execution of a link programme concerned with the education of teacher librarians in Papua New Guinea is described. The programme was designed in the mode, and intended to be used by teachers in remote areas, supported by practical sessions, or Laharas, on the main campus. Some of the pragmatic issues are discussed, and also the potential of such distance learning programmes in relation to community information. There are also possibilities of producing such...
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The effect of three methods of seeding for species of perennial wheatgrasses (Agro‐pyron spp.) on three range sites in the Moulouya Plain of Morocco was evaluated under conditions of drought. Germination and survivability of these wheatgrasses during drought were measured. A conventional method of land preparation and seeding was compared with two different techniques using a rang eland drill in 1984. Agropyron elongatum (Host) Beauv., A. intermedium (Host) Beauv., A. trichophorum (Link)...
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This paper outlines the extent of absolute poverty and the vulnerability of various dependent groups that are found in the population in Botswana. The paper argues that the seven-year drought, 1981-1987, increased the proportion of households that have little or no household food security. These households increasingly became dependent on state hand-outs and assistance programmes which have had the effict of reducing household and individual selfreliance. Paradoxically, the increasingly...