Tanzania is endowed with more than 10,000 plant species, of which 1,100 are endemic. The coastal regions host most endemic species, due to its wide range of productive ecological conditions. Over 25 % of all species are used as wild-harvested medicinal plants. About 60% of the Tanzanian population in both rural and urban areas depends on traditional medicine and herbs as their primary health care, and as a means of generating income. This is due to high costs and unavailability of the universal healthcare, which was abolished in 1993. The aim of the thesis is to make a structured and a quantitative investigation to identify traded medicinal plants traded in markets of Dar es Salaam in Tanzania with a purpose to understand the chain and consequences of commercial trade on wild-harvested medicinal plants. A quantitative market research using free list surveys was used in combination with individually repeated in-depth structured and semi-structured interviews. Furthermore, Conservation Assessment and Planning Management method was used to prioritise species that are in need of conservation due to commercial trade. The results show that the chain of commercial trade of medicinal plant species begins in the forest and is then distributed to different stakeholders, such as harvesters, vendors, Traditional Healing Practitioners, consumers and exporters. The research also shows that the large urban and international demand of medicinal plant species supplied by the vendors and exporters is the major threat, specifically to destructively harvested species such as Cassia abbreviata, Zanthoxylum usambarense, Zanthoxylum chalybeum, Myrsine africana, Milicia excelsa and Prunus Africana. These medicinal plants species are up-rooted and/or ring-barked and are therefore in need of conservation. This calls for several conservation guidelines such as policy and regulations, Traditional Ecological Knowledge, education and planting of the medicinal plant species in their natural forests as well as collecting samples of medicinal plant species in a herbarium. Policies can be implemented to conserve these species, for instance only allowing registered practitioners to harvest the medicinal plant species to a level that will sustainably balance the quantity of medicinal plant species in the forest and its supply. In conclusion, an important policy regulation could be an export tax on internationally-traded wild-harvested medicinal that is levied on the purchasing international pharmaceutical companies, which would then be used to fund the conservation of the medicinal plant species to retain a sustainable wild stock. More investigation on the actual population sizes of these plant species is needed in order to secure their existence and contribute to sustainable development both socially and environmentally

Much of the maternal health care literature on Aboriginal women is biomedical in its focus, covering topics such as gestational diabetes, abnormal birth weight, and infant morality. There has also been some exploration of First Nations womens relationships with health professionals. There is a dearth of literature that addresses First Nations womens choices, experiences, knowledges (traditional and medical), attitudes, beliefs and values surrounding their pregnancies and prenatal health care. This qualitative study conducted by a Mikmaw woman explores Mikmaw womens perceptions of their maternal health, the relationships that support or serve Mikmaw women during their pregnancy, birthing, and postpartum delivery in two First Nations communities in Nova Scotia. The stories of fourteen Mikmaw female participants, ranging from young women to Elders, were explored using a narrative inquiry approach that is consistent with First Nations oral traditions of storytelling. Stories were told in a focus group and individual interviews. Data collection, analysis, and interpretation was guided by an Indigenous framework of two superimposed medicine wheels: (1) holistic model of health (mental, physical, emotional and spiritual), and; (2) maternal health life cycle (becoming a woman, teachings during pregnancy, experiences during birth, motherhood and the fourth trimester: after birthing). This study found that the colonization of birthing has significantly impacted Mikmaw maternal health experiences, and is characterized by a tension between western medical knowledge and Mikmaq traditional knowledge systems that plays out very strongly during this critical period in the life of a woman and her child. In addition, recognition of the socio-cultural context of Mikmaq women is critical to understanding their decision making in regards to maternal health. The results suggest there is a need to create culturally sensitive models of maternal health that incorporate First Nations traditional knowledge of maternity and Western medical knowledge.

Religious fundamentalism is a confusing and not well understood phenomenon in present day Western societies. In order to obtain fresh insights into what social forces and conditions affect religious organizational development such that they become fundamentalist organizations, this study seeks to analyze a religious group that historically has been mandated to integrate and utilize alternative scientific and/or religious knowledge into their canon of teachings. A triangulation study consisting of a content analysis of its accepted history and a discourse analysis of its accredited membership are utilized to gather data on this religious organization to understand the historical, organizational, and external social circumstances that have allowed this religious community to engage and interact with alternative scientific and/or religious knowledge without interpretations of conflict becoming a source of social strife within their organization.

The study contributes to the growing literature on the role of social economy enterprises on rural vitality, by examining the relationship between credit union activity and community population growth in rural Canada. A preliminary qualitative inquiry indicated that while most of the business policies and practices of a chartered bank and a credit union are similar, a credit union, in addition, extended non-traditional lending to their clients in the form of micro-lending and also participated actively in community development lending. Following the preliminary qualitative investigation, the impact of credit unions was examined using spatial regressions models in seven provinces in Canada using data at Consolidated Census Subdivisions (CCSs) level data to represent communities. Motivated by the potential role of credit unions as community based financial institutions, the quantitative analysis modeled credit unions as potentially reducing transactions costs for local businesses.<p> Regression results indicated that the presence of credit unions was statistically significant and positive in our most parsimonious models including only natural amenity factors, agglomeration measures and other social measures as explanatory variables. However, in the full model with economic variables added the credit union dummy lost its statistical significance. A possible interpretation is that the credit union dummy is an inadequate representation of credit union activity. More complete, high quality, quantitative data to reflect their activities in the community may have produced different results.<p> Recent credit union mergers are designed to increase their capacity and efficiency in providing services to their members. However, these new trends could aggravate the principal-agent problems. As credit unions become more bank-like though mergers, individual branches may lose their links with their local communities and their ability to perform their traditional functions.

Little research has examined the role traditional health care systems play today among Native populations. The present research examined the role these systems play among the urban Native population of Saskatoon, Saskatchewan. The research was conducted at the Westside Community Clinic, located in the downtown core area of Saskatoon. This area of the city has previously been identified as having a high concentration of Native people. The present study represented one component of a much larger project which examined both Native and non-Native utlization patterns of the Western health care system at the Westside clinic. An interview schedule was used to gather data, with a total of 103 Native and 50 non-Native interviews being conducted. Since no sampling frame exists for the Native population of Saskatoon, an availability sampling technique was used. "Native" was defined in this study as status Indian, non-status Indian and Metis.<p> It was discovered that traditional health care systems play an important role in the health care of this population, with the use of these systems being quite extensive. It was determined that the variable of language was a somewhat useful predictor of the utilization of traditional health care systems, although language retention (the ability to speak a Native language) was found to be more important than the frequency with which a Native language was spoken. It was also discovered that use of traditional health care systems was not found only among older respondents, but rather was generalized among the respondents. The economic variables of income and education levels were also found to be related to utilization of traditional health care systems, with those respondents with higher income and education levels reporting greater use of these systems. Use of traditional health care systems was not found to be restricted to respondents with Indian status; rather, use was generalized among status Indian, non-status Indian and Metis respondents.<p>Respondents who utilized traditional health care systems also fully utilized the Western health care system. Further, use of traditional health care systems was not found to be related to difficulty respondents may have encountered in using the Western health care system, such as language or economic problems, or experiences of racism, although such problems were found to exist. Clearly, respondents did not turn to traditional health care systems because of difficulties in utilizing the Western health care system. Rather, traditional health care systems were used to supplement the Western health care system. It was further found that the majority of the respondents in the study desired access to traditional medicines and healers within the city of Saskatoon-and, again, this finding was not confined to any sub-group (I.e. older respondents) of the study but was generalized. The extent to which this access is presently available is questioned, and this could represent an important unmet health need of this population.

Renormalization Group (RG) method is a general method whose aim is to globally approximate solutions to differential equations involving a small parameter. In this thesis, we will give an algorithm for the RG method to generate the RG equation needed in the process of finding an approximate solution for ODEs. In chapter 1, we have some introduction to perturbation theory and introducing some traditional methods in perturbation theory. In chapter 2 we compare the results of RG and other conventional methods using numerical or explicit methods. Thereafter, in chapter 3, we rigorously compare the approximate solution obtained using the RG method and the true solution using two classes of system of ordinary differential equations. In chapter 4, we present a simplified RG method and apply it to the second order RG. In chapter 5 we briefly explain the first order Normal Form (NF) theory and then its relation to the RG method. Also a similar geometric interpretation for the RG equation and NF's outcome has been provided. In the Appendix, we have added definitions and proofs used in this thesis. The RG method is much more straightforward than other traditional methods and does not require prior information about the solutions. One begins with a naive perturbative expansion which already contains all the necessary information that we need to construct a solution. Using RG, there is no need to asymptotically match the solutions in the overlapping regions, which is a key point in some other methods. In addition, the RG method is applicable to most of perturbed differential equations and will produce a closed form solution which is, most of the times, as accurate as or even more accurate than the solutions obtained by other conventional methods.

This thesis contains the results of a biocultural conservation research conducted between 2008 and 2011 in home gardens in Vall Fosca, Catalan Pyrenees, northeastern Spain. Vall Fosca is a valley where traditional agroecosystems still survive, but whose inhabitants are divided in defining the most suitable development model for the region. This dissertation examines the existence of landraces and knowledge associated with them in a rural area in an industrialized country. It shows who preserves landraces and why they do so. It also estimates the association between individual centrality in the network of seed exchange and conservation of landraces and associated knowledge. This thesis also discusses the ecosystem services provided by home gardens, as well as the differences between men and women when assessing these ecosystem services. The results establish the existence of landraces and knowledge associated with them in a rural area in an industrialized country. Specifically, my results show the existence of 39 landraces belonging to 31 species, in home gardens with a variety of 148 different species. Women, people over 65 years of age, experienced gardeners and people who grow the garden with organic techniques conserve more landraces than people without these characteristics. Also people who have a more active role in the seed exchange network and have higher levels of intermediation in the network retain more landraces and traditional knowledge than people who have a more passive role in social networks of seed exchange. Home gardens provide a wide range of services, often not very prominent in the literature on ecosystem services. Among these, cultural services are the most appreciated. In this regard, an interesting contribution of this work is that the most valued home garden ecosystem services differ significantly from the services provided by other farming systems. Another interesting contribution of this work is that women value the ecosystem services more than men. The explanation for this finding is part of the socialization theory that assigns women roles on family care and protection. My analysis provides new data that facilitate the understanding of the relationship between pro-environmental attitudes and gender socialization. This thesis has found that home gardens and landraces are symbols of cultural identity in the valley and that both permanent residents and visitors consider that home gardens are key elements in the landscape of the valley and should be preserved as part of biocultural heritage. In addition, the ecosystem services provided by the home gardens, particularly the cultural services, can help develop relations between people, relations that might contribute to strengthening cultural identity and to create bonds of respect with the environment. The results of this thesis can contribute to make biocultural diversity visible in the valley and generate endogenous rural development models based on the sustainable exploitation of ecosystem services generated by traditional agroecosystems. Key words: ecosystem services; landraces; rural development; socialization theory; Spain; traditional ecological knowledge. / La presente tesis recoge una investigación en conservación biocultural realizada entre el 2008 y el 2011 en los huertos domésticos de la Vall Fosca en el Pirineo catalán, nordeste de España. La Vall Fosca es un valle en el que aún perviven agroecosistemas tradicionales, pero que se encuentra dividido a la hora de definir el modelo de desarrollo más deseable. Esta tesis analiza la existencia de cultivos de manejo local y el conocimiento asociado a ellos en un área rural de un país industrializado; muestra quién y por qué se conservan los cultivos de manejo local; y estima la asociación entre la centralidad individual en la red de intercambio de semillas y la conservación de los cultivos de manejo local y su conocimiento asociado. En esta tesis también se analizan los servicios ambientales proporcionados por los huertos domésticos, así como las diferencias entre hombres y mujeres en el momento de valorar estos servicios ambientales. Los resultados del análisis establecen la existencia de cultivos de manejo local y el conocimiento asociado a ellos en un área rural de un país industrializado. Específicamente mis resultados muestran la existencia de 39 cultivos de manejo local correspondientes a 31 especies, en huertos con una diversidad de 148 especies diferentes. Las mujeres, las personas de más de 65 años de edad, los hortelanos con experiencia, y la gente que cultiva el huerto con técnicas orgánicas mantienen más cultivos de manejo local que las personas sin estas características. Asimismo las personas que tienen un papel más activo en las redes de intercambio de semillas y que tienen mayores niveles de intermediación en la red, también conservan más cultivos de manejo local y tienen mayor conocimiento tradicional que las personas que tienen un papel más pasivo en las redes sociales. Los huertos domésticos proporcionan un amplio abanico de servicios, a menudo poco destacados en la literatura. Entre estos, los servicios culturales son los más apreciados. Un aporte interesante en este sentido es que los servicios de los huertos domésticos más valorados difieren significativamente de los servicios proporcionados por otros sistemas agrícolas. Otro aporte interesante de este trabajo es que las mujeres valoran los servicios ambientales más que los hombres. La explicación a este hallazgo se enmarca en la teoría de la socialización, que asigna a las mujeres papeles de cuidado y protección. Este análisis aporta nuevos datos que facilitan el entendimiento de la relación entre actitudes pro-ambientales y la socialización de género. En esta tesis se ha podido comprobar que los huertos y los cultivos de manejo local son símbolos de identidad cultural en el valle y que tanto los habitantes permanentes como los visitantes consideran que los huertos son elementos clave en el paisaje del valle y que se deberían preservar como parte de su patrimonio biocultural. Además, los servicios ambientales proporcionados por los huertos, en particular los culturales, pueden ayudar a tejer relaciones entre las personas que contribuyan a fortalecer la identidad cultural y a crear lazos de respeto con su medio ambiente. Los resultados de esta tesis pueden contribuir a visibilizar la diversidad biocultural del valle y generar modelos endógenos de desarrollo rural basados en la explotación sostenible de los servicios ambientales generados por los agroecosistemas tradicionales. Palabras clave: conocimiento ecológico tradicional; cultivos de manejo local; desarrollo rural; España; servicios ambientales; teoría de la socialización; variedades locales. / Aquesta tesi recull una investigació en conservació biocultural realitzada entre el 2008 i el 2011 en els horts domèstics de la Vall Fosca al Pirineu català, nord-est d'Espanya. La Vall Fosca és una vall en la qual encara perviuen agroecosistemes tradicionals, però que es troba dividida a l'hora de definir el model de desenvolupament més desitjable. Aquesta tesi analitza l'existència de cultius de gestió local i el coneixement associat a ells en una àrea rural d'un país industrialitzat; mostra qui i per què es conserven els cultius de gestió local, i estima l'associació entre la centralitat individual a la xarxa d’ intercanvi de llavors i la conservació dels cultius de gestió local i el seu coneixement associat. En aquesta tesi també s'analitzen els serveis ambientals proporcionats pels horts domèstics, així com les diferències entre homes i dones en el moment de valorar aquests serveis ambientals. Els resultats de l'anàlisi estableixen l'existència de cultius de gestió local i el coneixement associat a ells en una àrea rural d'un país industrialitzat. Específicament els meus resultats mostren l'existència de 39 cultius de gestió local corresponents a 31 espècies, en horts amb una diversitat de 148 espècies diferents. Les dones, les persones de més de 65 anys d'edat, els hortolans amb experiència, i la gent que conrea l'hort amb tècniques orgàniques mantenen més cultius de gestió local que les persones sense aquestes característiques. Així mateix les persones que tenen un paper més actiu en les xarxes d'intercanvi de llavors i que tenen majors nivells d'intermediació a la xarxa, també conserven més cultius de gestió local i tenen major coneixement tradicional que les persones que tenen un paper més passiu en les xarxes socials. Els horts domèstics proporcionen un ampli ventall de serveis, sovint poc destacats en la literatura. Entre aquests, els serveis culturals són els més apreciats. Una aportació interessant en aquest sentit és que els serveis dels horts domèstics més valorats difereixen significativament dels serveis proporcionats per altres sistemes agrícoles. Un altre aportació interessant d'aquest treball és que les dones valoren els serveis ambientals més que els homes. L'explicació a aquesta troballa s'emmarca en la teoria de la socialització, que assigna a les dones papers de cura i protecció. Aquesta anàlisi aporta noves dades que faciliten l'enteniment de la relació entre actituds pro-ambientals i la socialització de gènere. En aquesta tesi s'ha pogut comprovar que els horts i els conreus de gestió local són símbols d'identitat cultural a la vall i que tant els habitants permanents com els visitants consideren que els horts són elements clau en el paisatge de la vall i que s'haurien preservar com a part del seu patrimoni biocultural. A més, els serveis ambientals proporcionats pels horts, en particular els culturals, poden ajudar a teixir relacions entre les persones que contribueixin a enfortir la identitat cultural i a crear llaços de respecte amb el seu medi ambient. Els resultats d'aquesta tesi poden contribuir a visibilitzar la diversitat biocultural de la vall i generar models endògens de desenvolupament rural basats en l'explotació sostenible dels serveis ambientals generats pels agroecosistemes tradicionals. Paraules clau: coneixement ecològic tradicional; cultius de gestió local, desenvolupament rural, Espanya, serveis ambientals, teoria de la socialització; varietats locals.

The Western liberal approach to informed consent defines autonomy as an independent choice or decision made by an individual as the final authority in medical decision-making. This approach is so dominant that one can fail to see the merits of other traditional and cultural perspectives. In this dissertation, another approach to informed consent is considered -that of communal culture of Africa, a process used in African traditional medicine (ATM) wherein patients make medical decisions and give consent in consultation with the members of their community and the ATM doctor. Often, but not necessarily, the final consent rests on the consensus reached in consultation with the group rather than on that by the individual patient alone. &lt;br&gt;This dissertation argues that the ATM form of consent constitutes legitimate informed consent based on the concept of relational autonomy, commonly called relational autonomy in informed consent (RAIC) in this dissertation. To interpret and enlighten the significance of the ATM approach to RAIC, the analysis in this dissertation examines the ethics of care movement in Western bioethics which also advocates a relational approach to informed consent. This movement presents a concept of persons as relational beings who are socially embedded, thereby interpreting patient autonomy in their relationships with others. This movement provides the hermeneutic to enlighten the significance of the ATM approach as a legitimate model of RAIC. &lt;br&gt;By comparison of the ethics of care approach with that of ATM to RAIC, this dissertation further provides a relational approach to informed consent in order to inform the restrictive emphasis on individual autonomy practiced in Western bioethics, all with a view towards fostering current discourse on global bioethics. The dissertation also provides an applied example of the contribution of ATM's RAIC approach to ethics committees in Africa, focusing in particular, on the decision-making process for patient informed consent. &lt;br&gt;This dissertation is distinct insofar as it focuses on informed consent in ATM, employs ethics of care as a hermeneutic to interpret ATM, advocates integrated model of healthcare ethics committees in ATM. Because ATM forms a large portion of the healthcare systems in Africa, it follows that ATM and its practices should receive more attention in bioethics in the present global era. / McAnulty College and Graduate School of Liberal Arts; / Health Care Ethics / PhD; / Dissertation;

Little research has examined the role traditional health care systems play today among Native populations. The present research examined the role these systems play among the urban Native population of Saskatoon, Saskatchewan. The research was conducted at the Westside Community Clinic, located in the downtown core area of Saskatoon. This area of the city has previously been identified as having a high concentration of Native people. The present study represented one component of a much larger project which examined both Native and non-Native utlization patterns of the Western health care system at the Westside clinic. An interview schedule was used to gather data, with a total of 103 Native and 50 non-Native interviews being conducted. Since no sampling frame exists for the Native population of Saskatoon, an availability sampling technique was used. "Native" was defined in this study as status Indian, non-status Indian and Metis.<p> It was discovered that traditional health care systems play an important role in the health care of this population, with the use of these systems being quite extensive. It was determined that the variable of language was a somewhat useful predictor of the utilization of traditional health care systems, although language retention (the ability to speak a Native language) was found to be more important than the frequency with which a Native language was spoken. It was also discovered that use of traditional health care systems was not found only among older respondents, but rather was generalized among the respondents. The economic variables of income and education levels were also found to be related to utilization of traditional health care systems, with those respondents with higher income and education levels reporting greater use of these systems. Use of traditional health care systems was not found to be restricted to respondents with Indian status; rather, use was generalized among status Indian, non-status Indian and Metis respondents.<p>Respondents who utilized traditional health care systems also fully utilized the Western health care system. Further, use of traditional health care systems was not found to be related to difficulty respondents may have encountered in using the Western health care system, such as language or economic problems, or experiences of racism, although such problems were found to exist. Clearly, respondents did not turn to traditional health care systems because of difficulties in utilizing the Western health care system. Rather, traditional health care systems were used to supplement the Western health care system. It was further found that the majority of the respondents in the study desired access to traditional medicines and healers within the city of Saskatoon-and, again, this finding was not confined to any sub-group (I.e. older respondents) of the study but was generalized. The extent to which this access is presently available is questioned, and this could represent an important unmet health need of this population.

The study contributes to the growing literature on the role of social economy enterprises on rural vitality, by examining the relationship between credit union activity and community population growth in rural Canada. A preliminary qualitative inquiry indicated that while most of the business policies and practices of a chartered bank and a credit union are similar, a credit union, in addition, extended non-traditional lending to their clients in the form of micro-lending and also participated actively in community development lending. Following the preliminary qualitative investigation, the impact of credit unions was examined using spatial regressions models in seven provinces in Canada using data at Consolidated Census Subdivisions (CCSs) level data to represent communities. Motivated by the potential role of credit unions as community based financial institutions, the quantitative analysis modeled credit unions as potentially reducing transactions costs for local businesses.<p> Regression results indicated that the presence of credit unions was statistically significant and positive in our most parsimonious models including only natural amenity factors, agglomeration measures and other social measures as explanatory variables. However, in the full model with economic variables added the credit union dummy lost its statistical significance. A possible interpretation is that the credit union dummy is an inadequate representation of credit union activity. More complete, high quality, quantitative data to reflect their activities in the community may have produced different results.<p> Recent credit union mergers are designed to increase their capacity and efficiency in providing services to their members. However, these new trends could aggravate the principal-agent problems. As credit unions become more bank-like though mergers, individual branches may lose their links with their local communities and their ability to perform their traditional functions.