From virtual to physical reality with paper folding
- Authors: Bangay, Shaun D
- Date: 2000
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/432669 , vital:72891 , https://doi.org/10.1016/S0925-7721(99)00048-6
- Description: Objects in a virtual world can be converted into hardcopy by per-pendicular projection of each face onto a sheet of paper, cutting and gluing. Previously, use of this technique was restricted to a limited class of polyhedral objects. This paper extends this process to realis-tic virtual objects, with the traditional origami restriction of using only a single sheet of paper. A number of algorithms are explored to achieve this goal. The use of heuristics allows solutions to be found without exhaustive search of all possible layouts. Approaches to deal with pathological cases are described. The techniques have al-ready been successfully applied to a number of complex models, selected from a number of model archives on the Internet.
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- Date Issued: 2000
Rhodes University Graduation Ceremony 2000
- Authors: Rhodes University
- Date: 2000
- Language: English
- Type: text
- Identifier: vital:8147 , http://hdl.handle.net/10962/d1007297
- Description: Rhodes University Graduation Ceremony [at] 1820 Settlers National Monument Friday, 7 April 2000 at 10:30; 18:00 [and] Saturday, 8 April 2000 at 10:30 , Graduation Ceremony Guild Theatre, Oxford Street, East London Friday, 19 May 2000 at 18:00 [and] Saturday, 20 May 2000 at 14:30
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- Date Issued: 2000
The role of ‘African Chemists’ in the health care system of the Eastern Cape province of South Africa
- Authors: Cocks, Michelle L , Dold, Anthony P
- Date: 2000
- Language: English
- Type: Article
- Identifier: vital:7105 , http://hdl.handle.net/10962/d1010675
- Description: Self-medication is documented as an integral part of health care therapy in developing countries such as Ethiopia, Cameroon, Uganda and Mexico. In South Africa the types of illnesses and health problems that are referred to both traditional healers and biomedical practices have been well documented. However, very little literature exists on self-diagnosis, self-medication or sources of the medicines used for self-medication. This bias in the literature has come about largely because anthropological studies have focused on the later stages of the illness referral system when treatment is sought from a specialist for symptoms which have not responded to forms of self-medication. As a result of this, health care studies have documented the more exceptional exotic healing rituals and culturally bound syndromes of a particular society or community, and not discussed the more ordinary practices of self-medication of everyday illness. Self-medication is however an important initial response to illness and many illnesses are successfully managed at this stage. Amayeza stores (singular-iyeza store) — or ‘African chemists’ — are an important source of medicines for self-diagnosed illnesses. The current discussion focuses on the types of medicines and treatments that are obtained from amayeza stores without professional consultation in the Eastern Cape province of South Africa.
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- Date Issued: 2000