Alternative life-history styles of South African birds

1989 ◽  
pp. 385-420 ◽  
Author(s):  
W. Roy Siegfried ◽  
Richard K. Brooke
Keyword(s):  
Life History ◽  
South African

The life history of the giant octopusOctopus magnificusin South African waters

2006 ◽  
Vol 28 (3-4) ◽  
pp. 561-568 ◽  
Author(s):  
CD Smith ◽  
JC Groeneveld ◽  
G Maharaj
Keyword(s):  
Life History ◽  
South African ◽  
History Of

Reproductive life history of South African cheetahs (Acynonyx jubatus jubatus) at the San Diego Zoo Wild Animal Park, 1970–2005

Zoo Biology ◽  
2006 ◽  
Vol 25 (5) ◽  
pp. 383-390 ◽  
Author(s):  
Paula Augustus ◽  
Kelly Casavant ◽  
Natalie Troxel ◽  
Randy Rieches ◽  
Fred Bercovitch
Keyword(s):  
Life History ◽  
South African ◽  
San Diego ◽  
Wild Animal ◽  
Reproductive Life ◽  
History Of ◽  
Reproductive Life History

scholarly journals Have trypanosomes an ultra-microscopical stage in their life-history?

1908 ◽  
Vol 80 (541) ◽  
pp. 394-398 ◽  
Keyword(s):  
Life History ◽  
South African ◽  
Early Death ◽  
African Horse Sickness ◽  
Similar Statement ◽  
Healthy Horse ◽  
Trypanosoma Lewisi ◽  
Fritz Schaudinn ◽  
Longitudinal Division ◽  
Trypanosoma Gambiense

By an ultra-microscopical stage in the development of micro-organism is meant a stage in which the parasites are so small as to be invisible to the highest powers of the microscope, and to be capable of passing through the pores of a porcelain filter. For example, a drop of South African horse-sickness blood will give rise to the disease if injected under the skin of a healthy horse. If a similar drop is examined under the highest available powers of the microscope, nothing in the shape of a micro-organism can be seen. If this blood is filtered through a porcelain filter, the virus passes through, and the filtrate is found to be as infective as the original blood. House-sickness is therefore looked upon as a disease caused by an ultra microscopical micro-organism. For some time it has been reported by various workers that an ultra-microscopical stage exists among the trypanosomes. For example, Plimmer informs us that he found the filtered blood of nagana animals to be infective. Salvin Moore and Breinl write that the blood of animals suffering from Trypanosoma gambiense infection, although apparently containing no trypanosomes at all, and even if properly filtered, is still capable of infecting other animals into which it may be introduced. MacNeal also makes a similar statement in regard to Trypanosoma lewisi . He states that “in culture, on blood-agar, T. lewisi may give rise to much smaller forms, and that such cultures, after passage through a Berkefeld filter, still infect rats.” Finally, it may be noted that the late Dr. Fritz Schaudinn, whose too early death we all lament, expressed the belief that trypanosomes may multiply by longitudinal division so rapidly as to become small enough to pass readily through a Camberlain filter.

scholarly journals Genesis of self-identity as DisOther: Life histories of people who stutter

2004 ◽  
Vol 51 (1) ◽  
Author(s):  
Harsha Kathard ◽  
Mershen Pillay ◽  
Michael Samuel ◽  
Vijay Reddy
Keyword(s):  
Life History ◽  
Identity Formation ◽  
South African ◽  
Narrative Analysis ◽  
Life Histories ◽  
Self Identity ◽  
Kwazulu Natal ◽  
Multiple Processes ◽  
Life History Methodology ◽  
Over Time

This paper explores the processes shaping self-identity formation as DisOther and the actions of participants who stutter. It illuminates the experiences of adults who stutter using a biographical, narrative, life history methodology. The participants were seven South African adults of diverse racial, social and economic backgrounds from KwaZulu-Natal, South Africa. Five males and two female were invited to participate via purposive and convenience sampling processes. Their stories of living with stuttering in their life worlds over time were constructed via biographical interviews using personal, social and temporal lenses typical of life history methodology. The interviews were audio-recorded and transcribed. The data were analysed at two levels using a combination of strategies. The first level entailed a narrative analysis that was represented as research stories for each participant. The cross-case and thematic analysis of research stories constituted the second level analysis of narratives. The findings explain the complex and interrelated personal and social processes over time which contribute to the genesis of self-identity formation as DisOther. Social inscriptions of difference occurred in immediate home, school and work contexts over time via multiple processes such as labelling, norming, judging and teasing. Personal processes included discoveries of difference via critical events, repeated reinforcement of difference, self-judgement and temporal burdening. Furthermore, the actions participants took in negotiating stuttering were examined. The implications of the findings and limitations of the study are presented.

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