NUMSA’s Staff Disciplinary Code and Procedure
- NUMSA
- Authors: NUMSA
- Date: 1999
- Subjects: NUMSA
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/173722 , vital:42404
- Description: In circumstances in which the breach of a rule or failure to meet a required standard is not serious enough to warrant a final written warning or dismissal, the appropriate Local Chairperson, Regional Secretary or General Secretary may issue a verbal warning or first written warning after discussion with and counselling of the official.
- Full Text:
- Authors: NUMSA
- Date: 1999
- Subjects: NUMSA
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/173722 , vital:42404
- Description: In circumstances in which the breach of a rule or failure to meet a required standard is not serious enough to warrant a final written warning or dismissal, the appropriate Local Chairperson, Regional Secretary or General Secretary may issue a verbal warning or first written warning after discussion with and counselling of the official.
- Full Text:
Re-evaluation of Ashton’s types of African cicadas (Homoptera Cicadidae).
- Authors: Villet, Martin H
- Date: 1999
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/453840 , vital:75291 , https://doi.org/10.1080/03946975.1999.10539389
- Description: ASHTON (1914) described three species of cicada from Africa which were soon placed in synonymy with other species. Re-examination of the type material lead to the following revisions: Platypleura nigromarginata Ashton 1914 is removed from synonymy with Oxypleura quadraticollis (Butler 1874) and placed in the genus Strumoseura n. gen.; P. sikumba Ashton 1914 is confirmed as a junior synonym of Manza basimacula (Walker 1850) along with M. parva Villet 1989 n. syn.; and P. longirostris Ashton 1914 is removed from the synonymy of P. divisa Germar 1834.
- Full Text:
- Authors: Villet, Martin H
- Date: 1999
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/453840 , vital:75291 , https://doi.org/10.1080/03946975.1999.10539389
- Description: ASHTON (1914) described three species of cicada from Africa which were soon placed in synonymy with other species. Re-examination of the type material lead to the following revisions: Platypleura nigromarginata Ashton 1914 is removed from synonymy with Oxypleura quadraticollis (Butler 1874) and placed in the genus Strumoseura n. gen.; P. sikumba Ashton 1914 is confirmed as a junior synonym of Manza basimacula (Walker 1850) along with M. parva Villet 1989 n. syn.; and P. longirostris Ashton 1914 is removed from the synonymy of P. divisa Germar 1834.
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Rhodes University Graduation Ceremony 1999
- Authors: Rhodes University
- Date: 1999
- Language: English
- Type: text
- Identifier: vital:8133 , http://hdl.handle.net/10962/d1006778
- Description: Rhodes University 1999 Graduation Ceremonies [at] 1820 Settlers National Monument Friday, 9 April 1999 at 18:00 p.m. [and] 10 April 1999 at 10:30 a.m. , The Installation of Gert Johannes Gerwel as Chancellor of Rhodes University to be followed by a Graduation Ceremony 1820 Settlers National Monument Friday, 9 April 1999 at 10:30 a.m. , Rhodes University 1999 Graduation Ceremony City Hall, East London Friday, 7 May 1999 at 18:00 p.m.
- Full Text:
- Authors: Rhodes University
- Date: 1999
- Language: English
- Type: text
- Identifier: vital:8133 , http://hdl.handle.net/10962/d1006778
- Description: Rhodes University 1999 Graduation Ceremonies [at] 1820 Settlers National Monument Friday, 9 April 1999 at 18:00 p.m. [and] 10 April 1999 at 10:30 a.m. , The Installation of Gert Johannes Gerwel as Chancellor of Rhodes University to be followed by a Graduation Ceremony 1820 Settlers National Monument Friday, 9 April 1999 at 10:30 a.m. , Rhodes University 1999 Graduation Ceremony City Hall, East London Friday, 7 May 1999 at 18:00 p.m.
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Vegetation controls on channel stability in the Bell River, Eastern Cape, South Africa
- Rowntree, Kate M, Dollar, Evan S J
- Authors: Rowntree, Kate M , Dollar, Evan S J
- Date: 1999
- Language: English
- Type: Article
- Identifier: vital:6720 , http://hdl.handle.net/10962/d1006796
- Description: Channel instability has occurred in the Bell River in the form of meander cutoffs, a number of which have occurred since 1952. Increased sediment loading from widespread gully erosion in the catchment has been proposed as the trigger for this instability. Willow species of the Salix family, in particular S. caprea, have been planted along the banks in an effort to prevent further channel shifting. This study reports the results of an investigation into the effect of vegetation on channel form and stability over a 17 km stretch of channel. Results indicate that riparian vegetation has significant effects on channel form which have implications for channel stability. Riparian vegetation increases bank stability and reduces channel cross-sectional area, thereby inducing stability at flows less than bankfull. Evidence indicates that narrow stable stretches are associated with relatively high levels of riparian vegetation. Wider, unstable channels are associated with relatively less riparian vegetation. The effectiveness of riparian vegetation relative to bank sediments was investigated. A dense growth of willows was found to have an equivalent effect to banks with a silt-clay ratio of about 70 per cent. The channel narrowing induced by vegetation may contribute to channel shifting at high flows. The reduced channel capacity is thought to result in more frequent overbank flooding which may ultimately lead to channel avulsion. Thus where increased sediment loading is pushing the channel towards instability, vegetation may be effective in imparting local stability, but it is unable to prevent long-term channel shifts, and may rather help to push the system towards more frequent avulsions.
- Full Text:
- Authors: Rowntree, Kate M , Dollar, Evan S J
- Date: 1999
- Language: English
- Type: Article
- Identifier: vital:6720 , http://hdl.handle.net/10962/d1006796
- Description: Channel instability has occurred in the Bell River in the form of meander cutoffs, a number of which have occurred since 1952. Increased sediment loading from widespread gully erosion in the catchment has been proposed as the trigger for this instability. Willow species of the Salix family, in particular S. caprea, have been planted along the banks in an effort to prevent further channel shifting. This study reports the results of an investigation into the effect of vegetation on channel form and stability over a 17 km stretch of channel. Results indicate that riparian vegetation has significant effects on channel form which have implications for channel stability. Riparian vegetation increases bank stability and reduces channel cross-sectional area, thereby inducing stability at flows less than bankfull. Evidence indicates that narrow stable stretches are associated with relatively high levels of riparian vegetation. Wider, unstable channels are associated with relatively less riparian vegetation. The effectiveness of riparian vegetation relative to bank sediments was investigated. A dense growth of willows was found to have an equivalent effect to banks with a silt-clay ratio of about 70 per cent. The channel narrowing induced by vegetation may contribute to channel shifting at high flows. The reduced channel capacity is thought to result in more frequent overbank flooding which may ultimately lead to channel avulsion. Thus where increased sediment loading is pushing the channel towards instability, vegetation may be effective in imparting local stability, but it is unable to prevent long-term channel shifts, and may rather help to push the system towards more frequent avulsions.
- Full Text:
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