7 research outputs found
THE IMPACT OF TOXICANTS IN THE MARINE THREE ECOLOGICAL FOOD-CHAIN ENVIRONMENT: A MATHEMATICAL APPROACH
No full textTo explore the impact of toxicants on a marine ecological food chain system consisting of three species, this work develops and analyzes a non-linear mathematical model. The model consists of five state variables: phytoplankton, zooplankton, fish, environmental toxicant, and organismal toxicant. We have incorporated the Monod-Haldane functional response as a predation function for each species. Using the Jacobian matrix, the stability analysis was conducted, and necessary constraints were obtained for the system's local and global stability. Hopf bifurcation analysis was performed for carrying capacity () and the rate of decrease in the growth rate of phytoplankton due to the presence of toxicants (). Also, phase portraits are presented for different parameters of the model. In addition, numerical simulations are executed using MATLAB to prove theoretical findings and explore the impact of parameter variation on ecological species behavior
Compulsory COVID-19 vaccination at the workplace in South Africa
No full textMini Dissertation (LLM)--University of Pretoria 2022This mini dissertation is prohibited indefinitelyLabour protection is afforded to those workers who fall under the definition of "employee". COVID-19 has affected the safety of employers and employees in the workplace and has put more responsibility on employees to ensure safety of workers at the workplace. The COVID-19 vaccine was developed, and it came with a lot of criticism from the public. This led to some resistance in taking the vaccine by some people.
This created a problem, especially at workplaces where safety is concerned. Some employers had to make vaccination at workplaces compulsory. Given the challenges created by the pandemic, the courts had to intervene and scrutinize compulsory vaccination at workplaces.
Labour law makes a clear emphasis on safety of employees at the workplace.
This study will address the challenges and the balance that needs to be created where compulsory vaccination at workplaces is concerned, especially when the health and safety of employees and other members are concerned.
The author aspire that this research will ignite Labour Law minds to engage more with the vexed capabilities of Labour Law and the balance of creating health and safety at workplaces where compulsory vaccination is concerned.NRFMercantile LawLLM (Labour Law)Restricte
Author Correction: Mapping local patterns of childhood overweight and wasting in low- and middle-income countries between 2000 and 2017 (Nature Medicine, (2020), 26, 5, (750-759), 10.1038/s41591-020-0807-6)
No full textAn amendment to this paper has been published and can be accessed via a link at the top of the paper. © 2020, The Author(s)
Author Correction: Mapping local patterns of childhood overweight and wasting in low- and middle-income countries between 2000 and 2017 (Nature Medicine, (2020), 26, 5, (750-759), 10.1038/s41591-020-0807-6)
No full textAn amendment to this paper has been published and can be accessed via a link at the top of the paper. © 2020, The Author(s)
Author Correction: Mapping local patterns of childhood overweight and wasting in low- and middle-income countries between 2000 and 2017 (Nature Medicine, (2020), 26, 5, (750-759), 10.1038/s41591-020-0807-6)
No full textAn amendment to this paper has been published and can be accessed via a link at the top of the paper. © 2020, The Author(s)
Professional power and the state: A study of five professions in state welfare agencies in the UK
No full textThis thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The thesis defines a profession as a group of workers who have been authorised by the state
to determine aspects of their own work, training and organisation,usually,but not necessarily,as a result of their specialist expertise. It argues that knowledge about professions would be advanced by examining the social structures and processes of regulation and management of different professions, rather than by concentrating on the particular characteristics of the work or of the workers. Following this approach the thesis presents research into the different national regulatory structures, and local management structures of five "welfare service" professions in the U.K. In explaining the differences in structure the thesis shows how each occupation exploited characteristics which provided power in particular situations to establish organisation and control advantageous to its interests,and how characteristics such as specialist knowledge, status, and income were stabilised and further developed as a result. It also examines the complex involvement of the state in legitimating, advancing and limiting professional power.
The main contribution of the thesis is to develop Freidson's theory of professions through logical critique and by reference to empirical evidence about five U.K. welfare professions, and by,
- showing that national regulatory structures do not define a division of labour or provide the absolute autonomy which Freidson proposed, - showing that different types of professional autonomy are institutionalised in local
management structures, usually on central government recommendation, and by providing a typology of professional autonomy based on empirical research, - showing that characteristics of professions are related to, but not, as proposed by Freidson, determined by professional autonomy, - developing Freidson's general perspective to accommodate the empirical evidence by reconceptualising the nature of professions in terms of professional authority, rather than autonomy, and by developing a model of the authorisation of professional power.
In developing Freidson's theory the thesis also contributes, - to knowledge about professional organisation within state welfare bureaucracies,
mainly by providing detailed descriptions of differences and changes in management structures, - to the methodology of action research by developing the theoretical basis of a method for investigating the legitimation of authority in establishing management structures, - to knowledge about the details of the relationship between the state and welfare professions, mainly by providing evidence of the involvement of the state at national and local levels in decisions and structures which profoundly shape the nature of practice, relationships with clients, and futures of welfare occupations
Author Correction: Mapping local patterns of childhood overweight and wasting in low- and middle-income countries between 2000 and 2017 (Nature Medicine, (2020), 26, 5, (750-759), 10.1038/s41591-020-0807-6)
No full textAn amendment to this paper has been published and can be accessed via a link at the top of the paper
