709 research outputs found
Christian Critique of the University (Book Review)
Reviewed Title: A Christian Critique of the University by Charles Habib Malik. InterVarsity Press, 1982. 115 pages
Japan: A Way of Life (Book Review)
Reviewed Title: Japan: A Way of Life, by Arnold H. DeGraaff, Jean Olthuis, and Anne Tuininga. Toronto, Canada: Joy in Learning Curriculum Development and Training Centre, 1980. 324 pages
A study of the Neurological Impress Method with Remedial Secondary Students
This paper presents a study of the Neurological Impress Method, with junior high students two or more years behind their expected Reading Comprehension level. Thirty students were randomly selected and placed into control and experimental groups by a random number process. These S\u27s received eighteen weeks of special treatment with either the N.I.M. or oral reading practice for the controls. Statistical analysis showed no significant difference between the Reading Comprehension gains of controls and experimentals. The gains of both controls and experimentals was, however, found to be of significance. Conclusions and recommendations included suggestions for additional research and a discussion of the importance of teacher attention
Consecutive Virgin Births in the New World Boid Snake, the Colombian Rainbow Boa, Epicrates maurus
Until recently, facultative automictic parthenogenesis within the squamate reptiles exhibiting ZZ:ZW genetic sex determination has resulted in single reproductive events producing male (ZZ) or female (ZW) offspring. With the recent discovery of viable parthenogenetically produced female (WW) Boa constrictors, the existence of further parthenogenetic events resulting in WW females was questioned. Here, we provide genetic evidence for consecutive virgin births by a female Colombian rainbow boa (Epicrates maurus), resulting in the production of WW females likely through terminal fusion automixis. Samples were screened at 22 microsatellite loci with 12 amplifying unambiguous products. Of these, maternal heterozygosity was observed in 4, with the offspring differentially homozygous at each locus. This study documents the first record of parthenogenesis within the genus Epicrates, a second within the serpent lineage Boidae, and the third genetically confirmed case of consecutive virgin births of viable offspring within any vertebrate lineage. Unlike the recent record in Boa constrictors, the female described here was isolated from conspecifics from birth, demonstrating that males are not required to stimulate parthenogenetic reproduction in this species and possibly other Boa
- …
