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Spectral properties and photophysical behaviour of water soluble cationic Mg(II) and Al(III) phthalocyanines

- Idowu, Mopelola A, Arslanoglu, Yasin, Nyokong, Tebello

Authors: Idowu, Mopelola A , Arslanoglu, Yasin , Nyokong, Tebello
Language: English
Type: Article
Identifier: vital:7277 , http://hdl.handle.net/10962/d1020292
Description: Peripherally and non-peripherally tetrasubstituted-[(N-methyl-2-pyridylthio)]phthalocyaninato magnesium (II) (5 and 6) and chloro aluminium (III) (7 and 8) tetraiodide have been synthesized and characterized. The photophysical properties of the complexes in dimethyl sulfoxide (DMSO) and aqueous medium in the presence and absence of cremophore EL have been studied. These complexes show high solubility in aqueous medium though they were aggregated. The triplet state quantum yields (FT) and the triplet lifetimes (tT) were found to be higher in DMSO with ΦT ranging from 0.32 to 0.51, while tT ranged from 282 to 622 ms in DMSO, compared to aqueous medium (pH 7.4 buffer) where ΦT ranged from 0.15 to 0.19 and tT from 26 to 35 ms. Addition of cremophore EL in aqueous solution resulted in partial disaggregation and increased photoactivity. The fluorescence lifetimes of the complexes showed strong dependence on their immediate environment. The ionic magnesium(II) and aluminium(III) phthalocyanines strongly bind to bovine serum albumin (BSA). , Original publication is available at http://dx.doi.org/10.2478/s11532-013-0388-z
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Speech and Music for Chopi Wedding

- Tracey, Hugh

Authors: Tracey, Hugh
Subjects: Chopi wedding , Speech , Music , Xylophone , Orchestra , Dances , Chief Banguza, Philipi , Chief Zandamela , Bride, Chief Banguza's daughter , Groom, Chief Zandamela's son , Komukomu, leader of xylophone orchestra , Makara , Rattle players , Mzeno movement , Whistling , Ngondo dance , Chibudo movement , Villagers , Mozambique
Language: English
Type: Sound , Radio broadcast , Music
Identifier: vital:15134 , http://hdl.handle.net/10962/d1012208 , Reel number: BC159
Description: Broadcast entitled 'Speech and Music for Chopi Wedding', for a television film programme broadcast by the British Broadcasting Corporation , For further details refer to the ILAM Document Collection: Hugh Tracey Broadcasts
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Spirits - Rejoice

- Moholo, Louis, Williams, Richard

Authors: Moholo, Louis , Williams, Richard
Subjects: McGregor, Chris--1936-1990 , Pukwana, Dudu , Moholo, Louis T.--1940- , Moyake, Nikele , Feza, Mongezi , Miller, Harry , Dyani, Johnny Mbizo , Feni, Dumile , Patience, Princess , Jazz musicians
Language: English
Identifier: vital:13562 , http://hdl.handle.net/10962/d1006446 , McGregor, Chris--1936-1990 , Pukwana, Dudu , Moholo, Louis T.--1940- , Moyake, Nikele , Feza, Mongezi , Miller, Harry , Dyani, Johnny Mbizo , Feni, Dumile , Patience, Princess , Jazz musicians
Description: Photocopied album cover of Spirits/Rejoice. On the first page Louis Moholo is dedicating the "music to the memory of [his] brothers and sister". On the second page, from left to right, a photo of Dudu Pukwana, Mongezi Feza and Harry Miller and on the third page, from left to right Johnny Dyani and Chris McGregor. On the fourth page there is a picture of Louis Moholo and on the last page a photo of the Blue Notes in 1964.
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Stigma syndemics & symbolic (isms) in the context of HIV: ways of knowing in health care

- Naidoo, Joanne Rachel

Authors: Naidoo, Joanne Rachel
Subjects: Stigma (Social psychology) , HIV-positive persons -- Care , f-sa
Language: English
Type: text , Lectures
Identifier: http://hdl.handle.net/10948/55010 , vital:48778
Description: The negating effect of stigma on health outcomes has been widely established. Described as a hidden burden of disease, stigma significantly influences the inequities in health. The seminal work of Sociologist, Erving Goffman’s initially published in 1963 continue to underpin our current understanding of stigma as socially influenced through the symbolic interactions of everyday experiences that influences behaviour. Within the context of HIV, stigma remains a barrier in ending the epidemic and is associated with diminished health outcomes, health seeking patterns and poor quality of life. The significant advances in HIV treatment, has increased the life expectancy of people living with HIV, and has shifted the management of HIV as a manageable chronic illness. However the negative stigma outcomes experienced by people living with HIV remains. Moreover, the interactions of other syndemics (that is the co-existence of another disease/s, or social factors) further contributes to the stigma experienced by people living with HIV. This may refer to the co-existence of TB, depressive or other mental health disorder, younger woman, pregnancy, and occupations or work type industry, such as mini-bus taxi drivers, sex workers to name a few syndemics. Central to the health are the values and attributes of caring, towards the restorative process for sustained health and improved wellbeing. To enable care, there is a need for health care professionals to know how to care. Patterns of Knowing or Ways of Knowing developed by nurse theorist Barbra Carper (1975, 1978) and extended by Chinn and Kramer (2008) has become widely applied in nursing and health professions education and training. Ways of knowing acknowledges five inter related facets (empirical, ethical, personal, aesthetic and emancipatory) inherent in the provision of holistic care. The lecture will reflect on the syndemics associated with HIV related stigma, and the symbolic interactions with health care; in the provision of health care and in education and training of health care professionals. This will be framed against ways of knowing, how health care professionals know how to care, the inherent and learnt symbolic meanings in how care is provided, and its potential to demystify and eliminate the perpetuated HIV related stigma.
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Structure and agency in the age of climate change

- Cherry, Janet

Authors: Cherry, Janet
Subjects: South Africa -- Economic conditions , South Africa -- Social conditions , f-sa
Language: English
Type: text , Lectures
Identifier: http://hdl.handle.net/10948/21033 , vital:29429
Description: What I will present here is based on my grappling over the past three decades with one of the central problems of social science – the relationship between social structure and human agency. This is not a new problem for social scientists; from Karl Marx, who understood that human beings make history, but not in circumstances of their choosing; to the French structuralists who conceived the term ‘relative autonomy’ and ‘overdetermination’; to Anthony Giddens’ ‘structuration theory’ and other contemporary sociologists. What is new are the changing physical circumstances of the world in which we live, which mean that human society can no longer afford to analyse ourselves and our social, political and economic systems independently of the natural world.
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Substantive fairness in dismissals for operational requirements cases

- Camagu, Asanda Pumeza

Authors: Camagu, Asanda Pumeza
Subjects: Employees -- Dismissal of -- Law and legislation -- South Africa , Labor discipline -- Law and legislation -- South Africa , Unfair labor practices -- South Africa
Language: English
Type: Thesis , Masters , LLM
Identifier: vital:10214 , http://hdl.handle.net/10948/d1008114 , Employees -- Dismissal of -- Law and legislation -- South Africa , Labor discipline -- Law and legislation -- South Africa , Unfair labor practices -- South Africa
Description: Part II of the International Labour Organisation Convention 158 recognises operational requirements of an organisation as a ground for dismissal. Section 213 of the Labour Relations Act describes operational requirements reasons as requirements based on the economic, technological, structural or related needs of an employer. The employer‟s needs in case of operational requirement dismissal must be separated from the other reasons for dismissal, such as misconduct and incapacity. Operational requirements dismissals are governed by section 189 of the LRA. The LRA draws a distinction between small and large scale dismissals and regulates them separately. Section 189 control small scale dismissals, while section 189A pertains to large scale dismissals For substantive fairness of a dismissal for operational requirements, the employer must prove that the said reason is one based on operational requirements of the business. The employer must be able to prove that the reason for the dismissal falls within the statutory definition of operational requirements. Employers are not allowed to use retrenchment to dismiss employees who they believe to have performed unsatisfactorily. This means that employers are not entitled to retrench for ulterior reasons, than those of operational requirements.The Labour Court has held that an employer may not under any situation retrench an employee on a fixed-term contract if the termination takes place before the contract of the employee ends, unless the contract of employment makes provision for termination at an earlier date. Retrenchment in this situation will amount to a breach of contract. Another point of interest in dismissals for operational requirements is that the Labour Relations Act states that it is not unlawful to dismiss a striking employee for reasons based on the employer‟s operational requirements. In relation to the selection criteria to be used during these dismissals, the Labour Relations Act again states that if an agreement cannot be reached between the consulting parties, then the employer must use criteria that are fair and objective.
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