Five chemicals indigenous to the dental office environment that may cause toxic effects are formaldehyde, phenol, acrylic, mercury, and nitrous oxide. These chemicals create abnormal stress on physiological and psychological systems of the body resulting in symptomatology and pathology when the body defenses can no longer maintain homeostasis by adaptation. This study demonstrated serious behavioral consequences of chemical and heavy metal exposure. This study provided evidence that a significant percentage of dental office personnel who are exposed to the dental office chemicals show psycho neurological dysfunction. It was concluded that these individuals suffer adverse reactions to the chemicals in their work environment. The problem areas included perceptual motor difficulty in cognitive functioning, concern with bodily functions, despondency, and interpersonal problems.

No description available.

No description available.

published_or_final_version / Urban Planning / Master / Master of Science in Urban Planning

published_or_final_version / Urban Planning / Master / Master of Science in Urban Planning

published_or_final_version / Urban Planning / Master / Master of Science in Urban Planning

published_or_final_version / Management Studies / Master / Master of Business Administration

The thesis deals with services of CzechTrade foreign offices and evaluation of the services contribution to small and medium enterprises. The first two parts of the thesis describe the state support of export and CzechTrade agency. The following part of the thesis provides details about services of CzechTrade foreign offices. The last part of the thesis evaluates the services contribution to small and medium enterprises. The thesis on the basis of survey compares the state's and companies' point of view regarding the countries of priority interest for export and it appraises the level of cooperation between the public and private sector.

A research project submitted in partial fulfilment of the requirements for the degree of MA by coursework and Research Report in the field of Organisational Psychology in the Faculty of Humanities. University of the Witwatersrand, Johannesburg. March 2016 / There is international growing evidence to support the notion that indoor planters positively impact employees’ emotional states, personal health, work engagement as well as their overall perceptions of their work environment and ultimately impacting employee productivity. However this ground-breaking research has never been conducted within a South African Work Environment. Consequently the following study adopts a quasi-experimental study in order to investigate the impact that indoor plants may have on employee physical well-being, psychological well-being, work engagement and their overall perception of their work environment. Furthermore, the researcher aimed to assess whether the employees connectedness to nature influenced the impact the plants had on them, thus assessing how this covariate may impact the relationship between the absence and presence of plants and the above mentioned dependent variables. A Sample of 32 Global Service Management Centre (GSMC) employees from an internationally recognised organisation, Business Connexion, were assessed over a period of 12 weeks. The first assessment was conducted in the no plant condition, while the final assessment was conducted once the plants were installed in the whole office area. Additionally, SE Controls were positioned throughout the office area in order to measure the fluctuations of the air quality once the planters were installed. The results of a series of Wilcoxon Sign Rank Tests as well as Spearman’s Rank Order Correlations indicated no significant results; however upon closer evaluations of the individual scale items the researcher identified several statistically significant results that were unpacked and discussed. The readings from the SE Controls indicated either an improvement or stabalisation of the air quality variables that were being assessed in the current study. / GR2017

A research project submitted in partial fulfilment of the requirements for the degree of MA by coursework and Research Report in the field of Industrial Psychology in the Faculty of Humanities. University of the Witwatersrand, Johannesburg. February/May 2017 / Much evidence exists with regard to indoor plants and their positive effect on psychological perceptions as well as environmental air quality. However, this type of research has only ever been conducted once in a South African setting, which can be argued, is different to international contexts, in terms of climate and financial status. Indoor plants and their positive effects may have monumental effects on employees. This research assessed the presence of plants, on a sample of 34 employees at Discovery VitalityLife, consisting of Human Resources workers and call centre agents, on psychological perceptions (work engagement; psychological well-being; physical well-being and aesthetics) and on environmental factors (Total Volatile Organic Compounds; Benzene; Xylene; Carbon Dioxide (CO2); temperature and relative humidity). This research was conducted over a period of approximately three months whereby at Time 1 plants were absent and Time 2 plants were present. The same questionnaires were administered at both times. So too were Volatile Organic Compounds measured weekly and three measurement devices were installed in the workplace taking measurements of CO2, humidity, and indoor temperature every hour. The results found were that there were no statistically significant differences for the psychological perceptions from Time 1 to Time 2. This was concluded to be a result of the context in which this research took place. Total Volatile Organic Compounds, Benzene and relative humidity levels statistically significantly decreased at Time 2. Xylene levels statistically significantly increased at Time 2. There was no evidence to suggest statistically significant differences for CO2 and temperature from Time 1 to Time 2. / MT2018