Proefschr. Rijksuniversiteit Groningen. / Auteursnaam op omslag: Chris Hinnen. Met lit.opg.-Met samenvatting in het Nederlands.

Proefschrift Universiteit van Amsterdam. / Met bibliogr., index, lit. opg. - Met samenvatting in het Nederlands.

Thesis--Munich. / In Periodical Room.

Proefschrift Rijksuniversiteit Limburg Maastricht. / Met lit. opg. en een samenvatting in het Nederlands.

Proefschrift Universiteit Maastricht. / Auteursnaam op omslag: Michael Polder. Met lit. opg. - Met samenvatting in het Nederlands.

Proefschrift Universiteit Maastricht. / Met index, lit. opg. - Met samenvatting in het Nederlands.

Monogeneans are mainly ectoparasitic on fish, but the family Polystomatidae radiated onto tetrapods and can be found on the skin and gills of the Australian lungfish, in the urinary bladder of frogs, gills and skin of salamanders, cloaca and phalodeum of caecileans, on the eye, nostrils, mouth, cloaca or urinary bladder of freshwater turtles, and on the eye of the hippopotamus. These host organisms are ecologically related through their association with freshwater habitats that favour parasite transmission. Firm attachment is critical to maintain a close relationship with their hosts. Attachment organs usually comprise of several units that are semi related to each other due to the need to form a functional unit. Interactions between subunits are expected to be under stabilising selection, and therefore hinder evolutionary change. Monogeneans are renowned for their effective posterior attachment structures in the form of hooks or hamuli and suckers that secure them, permanently or semi-permanently, to their hosts. The aim of this study was to investigate the morphology and functioning of attachment organs of selected polystomes representing different genera. A number of genera were selected in the study of attachment structures, genera included: Protopolystoma, Polystoma, Eupolystoma, Neopolystoma, Polystomoides and Oculotrema. Light microscopy and scanning electron microscopy was used to study the external morphology. Histology followed by light microscopy, confocal microscopy and enzyme digestion techniques followed by scanning electron microscopy was used to study the internal morphology. It was found that variation in haptoral components do exist, even among congeners, living for example in the bladder and oral cavity of the same host. Environmental factors relating to host ecology need to be taken into account when studying the morphology of monogenean haptors. Such factors play an important role in the adaptation of monogeneans and have possibly led to the change in microhabitats, which in turn explain the variation of haptoral components between parasites. Not all haptoral structures necessarily function in attachment throughout the entire life of the parasite and different haptoral structures are important for attachment to the host at different developmental stages of the parasite. / PhD, North-West University, Potchefstroom Campus, 2015

Monogeneans are mainly ectoparasitic on fish, but the family Polystomatidae radiated onto tetrapods and can be found on the skin and gills of the Australian lungfish, in the urinary bladder of frogs, gills and skin of salamanders, cloaca and phalodeum of caecileans, on the eye, nostrils, mouth, cloaca or urinary bladder of freshwater turtles, and on the eye of the hippopotamus. These host organisms are ecologically related through their association with freshwater habitats that favour parasite transmission. Firm attachment is critical to maintain a close relationship with their hosts. Attachment organs usually comprise of several units that are semi related to each other due to the need to form a functional unit. Interactions between subunits are expected to be under stabilising selection, and therefore hinder evolutionary change. Monogeneans are renowned for their effective posterior attachment structures in the form of hooks or hamuli and suckers that secure them, permanently or semi-permanently, to their hosts. The aim of this study was to investigate the morphology and functioning of attachment organs of selected polystomes representing different genera. A number of genera were selected in the study of attachment structures, genera included: Protopolystoma, Polystoma, Eupolystoma, Neopolystoma, Polystomoides and Oculotrema. Light microscopy and scanning electron microscopy was used to study the external morphology. Histology followed by light microscopy, confocal microscopy and enzyme digestion techniques followed by scanning electron microscopy was used to study the internal morphology. It was found that variation in haptoral components do exist, even among congeners, living for example in the bladder and oral cavity of the same host. Environmental factors relating to host ecology need to be taken into account when studying the morphology of monogenean haptors. Such factors play an important role in the adaptation of monogeneans and have possibly led to the change in microhabitats, which in turn explain the variation of haptoral components between parasites. Not all haptoral structures necessarily function in attachment throughout the entire life of the parasite and different haptoral structures are important for attachment to the host at different developmental stages of the parasite. / PhD, North-West University, Potchefstroom Campus, 2015

The adolescent in a children’s home forms part of the growing number of South African children who through the course of their lives have been exposed to physical, emotional and sexual abuse, malnutrition and neglect. This type of abuse could be the result of lack of parenting skills in the case of parents and carers fuelled by poverty and poor education. Consequently, these adolescents would be described as “in need” and would be eligible for placement in alternative care. Children’s homes fall in the category of alternative care, made available for children “in need”. In terms of the law, a young person is enforced to leave the children’s home at the age of 18. This is accompanied by feelings of fear, uncertainty and denial. These feelings could influence the young person’s adaptation in the community negatively. The emphasis is therefore placed on the role and the responsibility of the social worker to prepare the individual for successful emancipation from the children’s home. Preparing the adolescent optimally for emancipation from the children’s home and in addition to deliver support throughout, may lead to successful adaptation into the community. This particular responsibility should be available to the child throughout his/her life in the children’s home, not just prior to the emancipation process. Social workers should be made aware of different factors that could influence the successful adaptation, for example, social workers might lack knowledge and the focus should be on bridging such shortcomings. This study focused on various contributing factors that influence the success of the adolescents’ adaptation in the community. The aim of the study was to investigate the general adaptation of the adolescent after emancipation from the children’s home. In order to reach the required goal, a number of objectives were formulated. These included the formulation of a theoretical framework of knowledge about the adolescent’s general life around the time of emancipation; the role and responsibilities of the social worker in providing support and optimal preparation of the individual; and the positive and negative factors that contribute to the individual’s success. An empirical study, during which semi-structured interviews were used as a data collecting method, was undertaken to assess the adaptation of the adolescents after emancipation from the children’s home. The following main themes were identified: the current life situation of the adolescent over the age of 18 who lives outside the borders of the children’s home; his/her self-esteem and how this perception of him/herself influences the adaptation process after emancipation; how the adolescents adapt and experience the social environment; their opinion about participation in anti-social behaviour; their feelings about the optimal preparation before and after the process of emancipation and their opinion on specific areas of change to contribute to the optimal preparation of emancipation out of the children’s home. Ten participants took part in individual, semi-structured interviews. Applied research was undertaken as the researcher aimed at establishing solutions for the identified problem area, namely that social workers need more information on the contributing factors that influence the general adaptation process after emancipation. A qualitative approach was used in order to gather qualitative empirical data. To achieve the goal in this study, a phenomenological strategy was applied, as the focus was on the experience, meaning and concept of the individual as regards his/her general adaptation process after emancipation from the children’s home. The research question formulated for this study was: What are the contributing factors that influence the general adaptation process of the adolescent after emancipation from the children’s home? The research findings indicate that the adolescent generally adapts well after emancipation from the children’s home. Most individuals experience their lives as children in a children’s home as positive. This positive feedback could be attributed to the way these individuals have been treated in the children’s home. Their adaptation process depends on the value they attach to their lives in the children’s home. The following aspects was indicated to have a positive influence on the adaptation of the adolescent after leaving the children’s home: - - preparation for life outside the children’s home by social workers - - acceptance by the peer group - - support from social workers during the adolescent’s time in the children’s home and after leaving the children’s home - - facilitation of the adolescent’ s effective handling of his trauma during his stay in the children’s home. - - Spontaneous socialization outside the children’s home - - Supportive contact with family members This study revealed the experience of the adolescents after emancipation from the children’s home, which holds further research possibilities. The necessary information was acquired and could be used in further studies of adolescents in a similar situation. / Dissertation (MSD (Play Therapy))--University of Pretoria, 2006. / Social Work and Criminology / unrestricted

Hierdie studie fokus op die moontlike verband tussen die emosionele intelligensie en akademiese prestasie van eerstejaarkoshuisstudente aan die Universiteit van Pretoria. Verder is bepaal of subgroepe van die eerstejaarkoshuispopulasie betekenisvolle verskille ten opsigte van die komponente van emosionele intelligensie toon. Hierdie studie kan van waarde wees ten opsigte van die mentorstelsel van die Studentevoorligtingsdepartement aan die Universiteit van Pretoria. Die inligting verkry in hierdie studie kan aangewend word om psigo-opleidingsprogramme en dienste van Studentevoorligting so te rig ten einde akademiese uitsakking te verminder en studente in die akademiese en sosiale aanpassingsproses op universiteitsvlak by te staan. Verskillende teoriee van emosionele intelligensie word bespreek, met die fokus op Reuven Bar-On se siening van emosionele intelligensie. Die komponente van emosionele intelligensie word in detail bespreek. Die uitsakking van eerstejaarstudente, faktore wat akademiese prestasie be"invloed, faktore uniek tot kultuurandersoortige studente en faktore bepalend vir akademiese sukses word bespreek. Die verband tussen akademiese sukses en die verskeie komponente van emosionele intelligensie word aangedui. Die literatuur toon dan ook dat die 15 komponente van emosionele intelligensie 'n bepalende invloed op akademiese prestasie het en akademiese sukses betekenisvol be"invloed. 'n Opname-ontwerp is in die studie gebruik. Die finale steekproef het uit eerstejaarkoshuisstudente bestaan wat die Emotional Quotient Inventory (Bar-On, 1996c), 'n vraelys wat emosionele intelligensie en die komponente van emosionele intelligensie meet, voltooi het. 'n Biografiese vraelys is ingesluit vir doeleindes van steekproefbeskrywing. Die statistiese verwerkings van die resultate is deur middel van variansie-analise en t-toetse gedoen. Verskeie statisties betekenisvolle intergroepverskille is tussen die geslagsgroepe en taalgroepe aangedui. Alhoewel daar nie 'n betekenisvolle verband tussen die saamgestelde emosionele intelligensie-skaal en akademiese prestasie verkry is nie, toon die resultate verkry deur variansie-analise en t-toetse vir die vergelyking van prestasiegroepe, dat die volgende subskale van die EQ-i tussen goeie en swak presteerders onderskei en as voorspellers van akademiese prestasie beskou kan word: selfaktualisering, realiteitstoetsing, strestoleransie, optimisme, probleemoplossing en kwaliteit van lewe. Hipotese 1, wat stel dat daar 'n verband tussen emosionele intelligensie en die akademiese prestasie van eerstejaarkoshuisstudente bestaan, word verwerp. Hipotese 2, 3 en 4 wat stel dat beduidende verskille tussen verskillende geslags-, taal- en prestasiegroepe verkry sal word ten opsigte van sommige van die emosionele intelligensie-komponente, word aanvaar. Die resultate verkry in die studie kan gebruik word ten einde dienste wat deur middel van die mentorstelsel van die Studentevoorligtingsdepartement van die Universiteit van Pretoria aan eerstejaarkoshuisstudente gebied word, te rig. / Dissertation (MA)--University of Pretoria, 1997. / gm2014 / Psychology / unrestricted