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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
241

Etude des champignons de la forêt dense humide consommés par les populations du Nord du Gabon

Eyi Ndong, Hugues C. 05 October 2009 (has links)
Les populations du nord du Gabon consomment 39 taxons de champignons. Pour mieux connaître les taxons consommés et collecter des informations sur leur écologie, une étude fondée sur les connaissances mycologiques traditionnelles de ces populations et des observations de terrain a été entreprise dans les provinces de l’Ogooué-Ivindo et du Woleu-Ntem situées dans le nord du pays. Au cours de cette étude basée sur une enquête ethnomycologique menée sur les axes routiers Makokou-Mékambo et Oyem-Minvoul, ainsi que dans les villages pygmées des environs, deux cents personnes dont les Pygmées Baka et Bakoya, et les Bantu Fang, Kota et Kwélé ont été interrogées (100 personnes par province visitée).<p><p>Cette étude a permis non seulement d'établir la correspondance entre les noms scientifiques et les noms vernaculaires attribués aux champignons dans les cinq langues locales étudiées, mais aussi de recueillir d'autres informations liées aux connaissances mycologiques traditionnelles des populations enquêtées. Des descriptions macroscopiques et microscopiques détaillées ont été faites pour tous les taxons inventoriés.<p><p>L’étude a également révélé qu’il existe des différences significatives tant en ce qui concerne le nombre de taxons que les quantités de champignons consommés par les différents groupes ethniques: les Pygmées vivant uniquement de la chasse et de la cueillette consomment 96% des taxons inventoriés et des quantités élevées de champignons (environ 3 kg / jour / famille). Les Bantu vivant à l’écart de ces derniers consomment également des quantités de champignons assez élevées (environ 2 kg / jour / famille) mais un nombre réduit de taxons (56% des taxons inventoriés pour les Fang; 69% pour les Kota; 39% pour les Kwélé). Par contre, les Bantu vivant à proximité des Pygmées connaissent et consomment un grand nombre de taxons (environ 90% des taxons inventoriés) mais mangent de plus faibles quantités de champignons que leurs congénères éloignés des Pygmées (environ 800 g / jour / famille).<p><p>Plus généralement, l’étude a montré que les connaissances mycologiques traditionnelles de ces populations varient en fonction de l’activité pratiquée, de l’âge, de l’ethnie et du sexe. Les meilleures connaissances mycologiques sont détenues par les chasseurs et les pêcheurs qui identifient environ 80% des taxons. Chez les Pygmées, les connaissances mycologiques des hommes et des femmes sont très diversifiées et identiques, alors que chez les Bantu, les femmes connaissent mieux les champignons (plus de 50% des taxons identifiés) que les hommes (à peine 30% des taxons identifiés). Cependant, quel que soit le groupe ethnique, les représentants de la population active connaissent mieux les champignons (85% des taxons identifiés) que les jeunes et les personnes du troisième âge (environ 30% des taxons identifiés).<p><p>Les champignons les plus appréciés par ces populations appartiennent au genre Termitomyces dont les espèces les plus recherchées sont T. fuliginosus, T. robustus et T. microcarpus.<p><p>Une étude comparative des champignons consommés au Gabon et dans d’autres pays d’Afrique tropicale a montré que les champignons consommés au Gabon le sont également au Bénin, au Burundi, au Cameroun, en République centrafricaine, en RD Congo, au Malawi, en Tanzanie… et que, après la RD Congo (21 taxons inventoriés), le Gabon présente la plus grande diversité de taxons consommés dans le genre Cantharellus (14 taxons inventoriés). Par contre, sur une trentaine de taxons de Termitomyces signalés en Afrique tropicale, le Gabon est le pays qui présente la plus faible diversité (7 taxons inventoriés). <p><p>Une compilation des données bibliographiques a révélé que le nombre de champignons symbiontes comestibles signalés en Afrique tropicale est de loin plus élevé en forêt claire qu’en forêt dense (12 taxons de chanterelles sur les 28 inventoriés en Afrique tropicale sont propres à la forêt claire contre 2 taxons à la forêt dense; 15 taxons de Termitomyces sur 30 sont propres à la forêt claire contre 5 taxons à la forêt dense). <p><p>Mots-clés: champignons comestibles, Pygmées, Bantu, ethnomycologie, Gabon<p><p><p><p><p><p><p><p> / Doctorat en Sciences / info:eu-repo/semantics/nonPublished
242

Pour une archéobotanique funéraire : enquêtes interdisciplinaires et analyses polliniques autour de la tombe et du corps mort (ère chrétienne, france – italie) / For a funeral archaeobotany : Interdisciplinary inquiries and pollen analyses around the grave and around the died body (Christian era, France - Italy)

Corbineau, Rémi 20 November 2014 (has links)
L’étude des pratiques mortuaires de l’ère chrétienne est un champ de recherche largement exploré par les historiens et les archéologues. Pourtant, en dépit d’une certaine tendance scientifique actuelle à questionner les rapports homme/milieu, aucune étude n’aborde la pompe funèbre dans une optique ethnobotanique. Cette enquête diachronique reconstitue les accessoires végétaux que la société puise dans son environnement pour accompagner le cadavre. Une méthodologie est développée pour la reconnaissance des micro- et macro-restes végétaux, en particulier le pollen, appliquée aux vestiges de huit sites archéologiques français et italiens (Ier-XVIIe s). Ces données, parfois éclairées par les sources écrites, livrent des informations inédites sur deux types de pratiques. D’une part, des dépôts végétaux constitués d’espèces florales accompagnent le corps des défunts et lui confèrent une image plus éclatante du point de vue visuel et olfactif, y compris dans les milieux sociaux les plus humbles. Ces données invitent les archéologues à considérer l’existence d’un mobilier funéraire peu connu jusqu’alors. D’autre part, les végétaux sont utilisés pour l’embaumement interne des plus privilégiés. L’opération transforme chirurgicalement la dépouille, et les chairs sont apaisées par le baume, une préparation dans laquelle les plantes jouent un rôle prédominant en vertu de leurs propriétés médicinales, olfactives, et symboliques. Ce travail pose les bases méthodologiques d’une archéobotanique funéraire. Les origines anciennes des pratiques mises en évidence devront à présent être reconstituées, mais c’est aussi leur rémanence dans la société contemporaine qu’il conviendra d’analyser. / Roman and Christian mortuary practices are widely explored by historians and archaeologists in Western Europe. Considered as a relic of a social being, the dead body contributes to a better understanding of human communities and cultures. However, even if Man-Environment interactions are now a central issue of the scientific research, no study has questioned funerary behaviors in an ethnobotanical perspective yet. This work aims to reconstitute plant accessories that people collect in their environment to treat the corpse and modify its appearance or its anatomical and biological properties. An original methodology is set up to sample and analyze macro and microbotanical remains, especially pollen, from Roman, Medieval and Modern tombs (1st-17th centuries AD) excavated on eight archaeological sites in France and in Italy. These archaeobotanical data confronted with written sources shed light on two kinds of practices.On the one hand, plant materials such as floral arrangements, litter and cushion made of colorful and fragrant species accompany the defunct into the grave. These tributes modify the sensory perception of the corpse and materialize devotion to the deceased, even in more humble social backgrounds. These results invite archaeologists to consider a new and unexpected kind of grave goods during fieldwork and laboratory analysis.On the other hand, plants are used for embalming into elite social circles. In Europe this practice, most likely originated in Ancient Times, is accurately documented by written and archaeological sources between the 14th century and the early 19th century. Evisceration and excerebration procedures physically transform the corpse, then the flesh and the skin are treated with an aromatic balm composed by many plants and exudates such as wormwood, mint, myrrh and frankincense. Surgeons appeal to medicinal, olfactory and symbolic properties of plants in order to stop the decay process and honor the body.This work lays foundation for an ethno-archaeobotany of death and brings some elements to understand the relationship between the dead body and its plant environment. Ancient origins of these mortuary practices now need to be identified. Moreover their persistence in contemporary society could also be analyzed through an ethno-sociological approach.
243

Investigating the use and identity of traditional herbal remedies amongst South Asian communities using surveys and biomolecular techniques

Bhamra, Sukvinder January 2016 (has links)
Herbal medicines (HMs) have been used to supplement, maintain, and treat health conditions, and have inspired the development of many Western pharmaceuticals. Migrant South Asian (SA) communities in the UK have brought with them their own traditional forms of medicine, yet little is known about their current use of HMs in the UK. Consuming HMs alongside conventional Western medicines could affect pharmacological treatment and lead to herb-drug interactions; hence, healthcare professionals (HCPs) should be aware of their patients’ use of HMs. The import of HMs to the UK raises concerns over the quality, safety and regulation of HMs. Deoxyribonucleic acid (DNA) barcoding can be used to discriminate between different species, and identify contaminants and adulterants, thus can be used for the authentication of HMs. The South Asian Traditional Medicines (SATMED) questionnaire explored the knowledge and use of HMs by diasporic SA communities in the UK. It uncovered a vast range of HMs which were used by participants, where ingredients were sourced from, the concurrent use of herbal and Western medicines, and how minor ailments were treated. An online survey designed to investigate UK based practitioners’ views of HMs revealed that HCPs claimed to lack sufficient knowledge of HMs. HCPs said they needed more training on HMs to help them make better informed decisions. Tulsi (Ocimum tenuiflorum L.) was identified as a culturally and commercially valuable plant, which was used for molecular analysis. A variety of tulsi samples were collected for authentication: community samples from SA families in the UK, commercial samples, and referenced specimens. Both ITS and trnH-psbA regions were successfully used to distinguish between several Ocimum species, and identify a potential species substitution. This research represents the first time that DNA based methods have been used to authenticate medicinal plants species used by migrant SA communities living in the UK. The results of this multi-disciplinary study provide a unique contribution to the evolving discipline of ethnopharmacology.
244

Contributions to the systematics and biocultural value of Aloe L. (Asphodelaceae)

Grace, Olwen Megan 13 July 2009 (has links)
Aloe L. (Asphodelaceae) is a monocotyledonous group of considerable popularity among succulent plant collectors and with a long history of medicinal use. It comprises ca. 500 species occurring throughout Africa, the Arabian Peninsula and western Indian Ocean islands. The first comprehensive ethnobotanical study of Aloe (excluding the cultivated A. vera) was undertaken using the literature as a surrogate for data gathered by interview methods. Over 1400 use records representing 173 species were collated, the majority (74%) of which described medicinal uses, including species used for natural products. In southern Africa, 53% of approximately 120 Aloe species in the region are used for health and wellbeing. Consensus ratios indicated that the uses of Aloe spp. for medicine and pest control are of the greatest biocultural importance. Utility has contributed to the recognition of diversity, taxonomic complexity, and conservation concerns, in Aloe. A systematic evaluation of the problematic maculate (spotted) species complex, section Pictae, was undertaken. New sequences were acquired of the nuclear ribosomal internal transcribed spacer (ITS), chloroplast trnL intron, trnL–F spacer and matK gene in 29 maculate species of Aloe. A well supported monophyletic (holophyletic) maculate group was recovered in phylogenetic trees of comparable topology generated by parsimony analysis and Bayesian inference. A representative of the related section Paniculatae, A. striata, was recovered in the maculate group, whereas doubtful maculate species with unusual floral morphology (A. leptosiphon and A. suffulta) comprised a sister group. Analogous patterns were identified in chemosystematic and comparative morphological studies of 34 and 36 maculate species, respectively, and insights were gained into interspecific relationships. The flavonoids isoorientin and isovitexin, and a new C-glycosylanthrone, 6′-malonylnataloin, were characterised using hyphenated chromatographic techniques and nuclear magnetic resonance (NMR) spectroscopy. Leaf surface sculpturing, stomata and lobes surrounding the epistomatal pore observed under a scanning electron microscope (SEM) are of potential taxonomic significance. Available evidence indicates that floral characters, namely a basally swollen perianth with constriction above the ovary, are of greater significance than maculate leaves as synapomorphies for section Pictae. An evolutionary hypothesis for section Pictae excludes marginal maculate species with unusual flowers. / Thesis (PhD)--University of Pretoria, 2009. / Plant Science / unrestricted
245

Análise fitoquímica e ensaios biológicos de plantas da caatinga utilizadas pelos índios Pankararé da estação ecológica Raso da Catarina, município de Glória-BA, Brasil / Phytochemical analysis and biological assays of the caatinga plants used by the Pankararé Indians of the Raso da Catarina ecological station, in the city of Glória-BA, Brazil

Santos, Edilson Alves dos 07 November 2011 (has links)
This study aimed at registering through ethnobotanical and ethnopharmacological studies, the use of medicinal plants utilized by Indians of the Pankarare tribe, set in the Ecological Reserve of Raso da Catarina, in the city of Glória - BA northeast of Brazil. 35 people were interviewed in the community between men and women. From the Species,15 specimens of plants cited, distributed in 11 families were made (EB) crude extracts of the stem, stem bark, leaf and root from which biological tests were conducted for the larvicidal activity (larvae of the fourth instar of Aedes aegypti) molluscicidal (against the snail Biomphalaria glabrata. Scoparia dulcis and Helicteris velutina species were the ones that showed the best larvicidal activity, the species being Poincianella pyramidalis, Chenopodium ambrosoides, with Mimosa tenuiflora, had the best molluscicidal activity. About the species Mimosa tenuiflora (Jurema black) ethnobotanical informations were obtained about its use in sacred and cultural rituals of the Pankarare. Only the crude extract (284 g, 20.57%) of the stem of Jatropha mollissima (white pine) was used for the phytochemical study for being the most mentioned species by the Pankarare to be indicated in folk medicine for the treatment of some infections, with analgesic, anti-inflammatory, hemostatic, purgative and healing activity. The extract and the fractions derived from the partitions, were submitted to tests for the evaluation of the molluscicidal activity (Biomphalaria glabrata), larvicide (larvae fourth instar Aedes aegypti), anti-Leishmania and anti Trypanosoma cruzi where it was possible to isolate and identify substances JM1 and JM2 identified through the techniques of IR and 1H NMR and 13C one and two dimensional. In this sense, the plants of the region have proved to be a rich source of substances with larvicidal, trypanocidal and Molluscicide activity. This study proves, then, the relationship between the ethnobotany indication with the pharmacological testadase activities which makes evident the need for an interdisciplinary program of research in the semi-arid, especially in the Indian village Pankarare, aiming at a sustainable use of natural resources and promoting community development. / Este trabalho objetivou registrar através de estudos etnobotânicos e etnofarmacológicos o uso de plantas medicinais utilizadas por índios da tribo Pankarare, fixados na Reserva Ecológica do Raso da Catarina, no município de Glória - BA nordeste do Brasil. Foram entrevistadas 35 pessoas da comunidade entre homes e mulheres. Das espécies 15 espécies de plantas citadas, distribuídas em 11 familias foram feitos (EB) extratos brutos do caule, casca do caule, folha e raiz dos quais foram realizados testes biológicos, para as atividades Larvicida (larvas do 4º instar do Aedes aegypti), Moluscicida (frente ao caramujo Biomphalaria glabrata. As espécies Scoparia dulcis e Helicteris velutina foram as que apresentaram melhor atividade larvicida,, sendo as espécies Poincianella pyramidalis, Chenopodium ambrosoides, Mimosa tenuiflora com melhor atividade moluscicida. Sobre a espécie Mimosa tenuiflora (Jurema preta) foram obtidas informações etnobotânicas a respeito do seu uso nos rituais sagrado e culturais dos Pankarare. Apenas o extrato bruto (284 g; 20,57%) do caule da Jatropha mollissima (pinhão branco) foi utilizado para o estudo fitoquímico por ser a espécie mais citadas entre os Pankarare e indicada na medicina popular para o tratamento de algumas infecções, com atividade analgésica, anti-infamatória, hemostáticas, purgativas e cicatrizantes. O extrato, bem como as respectivas frações oriundas das partições, foram submetidos a ensaios para avaliação das atividades moluscicida (Biomphalaria glabrata), larvicida (larvas do 4º instar do Aedes aegypti), anti- Leishmania e anti-Trypanossoma cruzi onde foi possível isolar e identificar as substâncias JM1 e JM2 identificadas através das técnicas de Infravermelho e RMN de 1H e 13C uni e bidimensional. Nesse sentido, as plantas da região tem se mostrado uma rica fonte de substâncias com atividades Larvicida, Moluscicida e tripanocida. O presente estudo comprova então, a relação entre a indicação etnobotânica com as atividades farmacológicas testadase que torna-se evidente a necessidade de um programa interdisciplinar de pesquisa no semi-árido nordestino, em especial na aldeia indígena Pankarare, visando à utilização sustentável de recursos naturais e promovendo o desenvolvimento da comunidade.
246

Myslet z psychedelické zkušenosti - transdisciplinární interpretace / To thin from psychedelic experiences - a transdisciplinary interpretation

Pokorný, Vít January 2016 (has links)
Pokorný, V., To think from psychedelic experiences. Transdisciplinary interpretation. Diseration Thesis, Departement of General Anthropology, Faculty of Humanities, Charles University Prague, 2016 Abstract: The goal of this text is to think from and according to psychedelic experiences. To think from psychededic experiences means to introduce a transdisciplinary model of psychedelic domain. This model is based on autoethnographic, cognitive, phenomenological and psychopharmacological types of analysis. These analyses allow to demonstrate: 1) place of psychedelics in contemporary globalised czech society; 2) possible heuristic (theoretical and experiemental) value of psychedelic experience for understanding human situation. This text interprets psychedelic experience as a process of deteritorialization and reteritorialization that occurs on different, intertwinned levels of our experience, and, thus, it is a contribution to explication of a philosophical concept of intertwinning. Keywords: psychedelic experience, transdisciplinarity, autoethnography, cognitive anthropology, anthropology of experience, enactivism, phenomenology, embodiment, analogy, intertwinning
247

The ethnobotanical investigation of the Mapulana of Ehlanzeni District Municipality, Mpumalanga Province, South Africa

Mashile, Shalom Pabalelo 20 September 2019 (has links)
PhD (Botany) / Department of Botany / Ethnobotanical information still needs documentation as this will assist in the preservation of information for future generation. It becomes most important, particularly when considering the neglected ethnic subgroups. From fourteen villages in the Ehlanzeni district; elders, community adults and youth were selected by means of snow balling technique and a semi-structured questionnaire was used to interview them. Data was analysed by calculating the use value of selected plant species on common ailments. Hundred and forty-eight plants were observed as being utilized by Mapulana as food (fruits and African leafy vegetables), fuelwood, medicine and the making of utensils. The majority of the recorded plant species (54%) were native while 46% were naturalized. The majority of plants (37%) were utilized as medicine only, while food contributed only 19 percent usage, followed by medicine (13%), fuelwood (4%) and utensils (1%). A total of hundred and six plant species were identified as medicine treating 50 different ailments. Roots and leaves were the highly preferred plant and herb parts collected. The results showed that Sclerocarya birrea subsp. caffra (use value of 0.86) was reported as being used in four different ways; seconded by Cucurbita maxima (use value of 0.58) with two different uses. Numerous medicinal uses were observed from Aloe zebrina (use value 0.38) and Aloe marlothii (use value 0.29). Ailments with Informant Consensus Factor (ICF) were gonorrhea (1.80), stomach cleansing (1.40), chicken and cow diseases (1.19), bad luck (0.88), flu (0.84), and diarrhea (0.80). There were, in addition, many ailments with low ICF known by the elders and few community adults proving that the elderly are custodians of indigenous knowledge. Twenty-six line transects of 100m x 10m in size were constructed in determining the population structure of Peltophorum africanum Sond. in Bolla-Tau village. A total of 256 individuals were recorded from the transects. Data was analyzed using IBM Statistical Product and Service solutions (SPSS) statistics version 25 and Microsoft Excel 2013 version. The population structure of P. africanum was found to be bell-shaped. Logarithmic analysis, along with generalized log analysis depicts, that there was significance difference between the plant height and stem circumference. Resprouts of P. africanum individuals were only 18% and a majority of individuals (82%) were harvested. The study revealed that 43.84% of P. africanum individuals had traces of crown damage, as compared to individuals with healthy crowns (35.9%). The rest of the individuals had either light or moderate crown-health status. / NRF
248

The tiger and the turbine : indigenous rights and resource management in the Naso territory of Panama

Paiement, Jason Jacques. January 2007 (has links)
No description available.
249

Myslet z psychedelické zkušenosti - transdisciplinární interpretace / To thin from psychedelic experiences - a transdisciplinary interpretation

Pokorný, Vít January 2016 (has links)
Pokorný, V., To think from psychedelic experiences. Transdisciplinary interpretation. Diseration Thesis, Departement of General Anthropology, Faculty of Humanities, Charles University Prague, 2016 Abstract: The goal of this text is to think from and according to psychedelic experiences. To think from psychededic experiences means to introduce a transdisciplinary model of psychedelic domain. This model is based on autoethnographic, cognitive, phenomenological and psychopharmacological types of analysis. These analyses allow to demonstrate: 1) place of psychedelics in contemporary globalised czech society; 2) possible heuristic (theoretical and experiemental) value of psychedelic experience for understanding human situation. This text interprets psychedelic experience as a process of deteritorialization and reteritorialization that occurs on different, intertwinned levels of our experience, and, thus, it is a contribution to explication of a philosophical concept of intertwinning. Keywords: psychedelic experience, transdisciplinarity, autoethnography, cognitive anthropology, anthropology of experience, enactivism, phenomenology, embodiment, analogy, intertwinning
250

The ethnobotany and phenology of plants in and adjacent to two riparian habitats in southeastern Arizona.

Adams, Karen Rogers. January 1988 (has links)
Two riparian habitats in southeastern Arizona provide the setting for a study of 127 plants useful to human foragers. A view of plant part availability is based on annual phenological profiles, and on historic and prehistoric records of plant use. Food choice is limited in March and April, but high August through November. Riparian plants also offer numerous non-food resources. Trees and shrubs serve more needs in relation to number of available species than do perennial herbs (including grasses) and annuals. Southwestern ethnographic literature hints that certain native taxa (Panicum, Physalis, Populus, Salix, Typha and Vitis) might receive special care. Inherent qualities of parts, coupled with ethnographic records of preparation and use, provide a basis for speculation on which parts might survive in an ancient record. Most are expected to disintegrate in open sites. Parts sought for different needs can enter a dwelling via diverse routes that produce confusingly similar archaeological debris. Modern experiments to wash pollen from 14 separate harvests permit evaluation of plant fruit and leaves as pollen traps, to help interpret pollen recovered from ancient dwellings. High amounts of Berberis, Rumex and Ribes pollen, sometimes in clumps or as tetrads, travel on harvested fruit. Arctostaphylos, Monarda, Oxalis, Rhus, Rhamnus, Vitis and Juniperus parts carry lower amounts. Quercus and Gramineae pollen grains travel on parts of other taxa, as well as on their own fruit. The phenological profiles offer insight into group life-form activities in response to local temperature and precipitation trends. Rising and maximum temperatures coincide with intense vegetative and reproductive activity for trees, shrubs, herbaceous perennials, and annuals. Increased levels of precipitation coincide with maximum flowering and fruiting of herbaceous perennials and fall annuals. Limited data on six taxa from Utah generally agrees with observations in this study, suggesting strong genetic control in the phenology of some riparian taxa.

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