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Dissertations / Theses on the topic 'Angolense'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Thia, Joshua A. Y. W. "The plight of trees in disturbed forest: conservation of Montane Trees, Nigeria." Thesis, University of Canterbury. School of Biological Sciences, 2014. http://hdl.handle.net/10092/9887.

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The montane forests of Africa represent some of the Earth's most diverse and threatened ecosystems. In particular, those in West Africa have received comparatively little attention from scientists in terms of understanding the ecology and biodiversity of their species. This thesis wishes to understand genetic and ecological factors that underpin the long-term survival of selected tree species (Cordia millenii, Entandrophragma angolense, Lovoa trichilioides) in the montane forests of the Mambilla Plateau, Nigeria. The results obtained here provide a strong foundation for future work that wishes

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2

Van, Huyssteen Konstant. "Populêre vs. literêre grensverhale : twee beelde van die Angolese oorlog (1966-1989)." Master's thesis, University of Cape Town, 1998. http://hdl.handle.net/11427/19512.

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Bibliography: pages 198-207.<br>In this dissertation, a study is made of two bodies of fiction documenting the South African soldier in Angola. The fiction was limited to Afrikaans short stories, as this genre is believed to best reflect the fragmentary, explosive experience of combat. This demarcation also served as a way of limiting the body of fiction for the study. A cut-off year of 1990 was taken. The rationale for this is that the late seventies and eighties was the golden age for the publication of border fiction, and that Southwest AfricaNamibia gained independence in 1990 with a SWAPO

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3

Kayofa, Fillemon. "Natural regeneration potential of Pterocarpus angolensis (Kiaat Tree) in the dry forests of northern Namibia." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97146.

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Thesis (MSc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Pterocarpus angolensis is one of the timber tree species that regenerates naturally in the dry forest of Namibia, mainly assisted by the influence of forest fires. Tree development goes through a prolonged suffrutex stage to reach the sapling stage and then, finally, the bole tree stage. This study focused on assessing the main factors facilitating the development of Pterocarpus angolensis seedlings through the suffrutex stage to the sapling stage in Namibia dry forests. To achieve the study objectives three study locations (Oko

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4

Khosa, Josephine. "The legal protection of indigenous plants with reference to pterocarpus angolensis in Rolle village, Limpopo Province." Thesis, University of Limpopo (Turfloop Campus), 2008. http://hdl.handle.net/10386/825.

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5

LOPES, João dos Prazeres. "Análise da comunicação sonora do Curió Oryzoborus angolensis (Aves, Passeriformes, Emberizidae)." Universidade Federal do Pará, 2011. http://repositorio.ufpa.br/jspui/handle/2011/5316.

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Submitted by Cleide Dantas (cleidedantas@ufpa.br) on 2014-05-06T16:24:27Z No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_AnaliseComunicacaoSonora.pdf: 5705448 bytes, checksum: bf95b02d994c05dc18624aff8eb4172a (MD5)<br>Approved for entry into archive by Ana Rosa Silva (arosa@ufpa.br) on 2014-07-14T17:01:40Z (GMT) No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_AnaliseComunicacaoSonora.pdf: 5705448 bytes, checksum: bf95b02d994c05dc18624aff8eb4172a (MD5)<br>Made available

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6

Kasumu, Exildah Chibengele Chisha. "Improving exploitation of Pterocarpus angolensis : seed germination, micropropagation and genetic diversity." Thesis, University of Aberdeen, 2005. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU207620.

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Studies of seed dormancy breakage, micropropagation and genetic diversity were conducted on seed from Zambia and Zimbabwe. In seed dormancy breakage, nicking part of the seed coat and gibberellic acid treatments GA3 and GA4/7 were investigated. In Study 1) nicking had significantly higher germination, with a rate of 99% within five days of sowing, whereas GA3 treatment and the control had 65 and 69% germination respectively after four weeks. In study 2) 36, 36, 55 and > 91% germination were obtained with GA4/7, GA3, the control and nicking respectively after six weeks. In micropropagation expe

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7

Fennessy, Julian Thomas. "Ecology of desert-dwelling giraffe Giraffa camelopardalis angolensis in northwestern Namibia." Thesis, The University of Sydney, 2004. http://hdl.handle.net/2123/910.

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The population size and range of giraffe Giraffa camelopardalis have been greatly reduced in Africa in the past century, resulting in geographical isolation of local populations and some herds surviving at the edge of the species’ preferred range. Numerous factors have contributed to these declines, but historical analysis indicates that habitat loss and fragmentation, human encroachment, disease and poaching are the main threatening processes. These processes can be expected to continue to impact on giraffe populations, particularly as human populations grow and needs for land and resources i

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8

Fennessy, Julian Thomas. "Ecology of desert-dwelling giraffe Giraffa camelopardalis angolensis in northwestern Namibia." University of Sydney, 2004. http://hdl.handle.net/2123/910.

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Doctor of Philosophy<br>The population size and range of giraffe Giraffa camelopardalis have been greatly reduced in Africa in the past century, resulting in geographical isolation of local populations and some herds surviving at the edge of the species’ preferred range. Numerous factors have contributed to these declines, but historical analysis indicates that habitat loss and fragmentation, human encroachment, disease and poaching are the main threatening processes. These processes can be expected to continue to impact on giraffe populations, particularly as human populations grow and needs

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9

McLeran, Kerry. "OXYGEN ISOTOPE ANALYSIS IN TREE-RINGS OF PTEROCAROUS ANGOLENSIS GROWING IN ZIMBABWE." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1131.

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My study was designed to identify the relationships between climate variables, such as precipitation and temperature, and δ 18 O values of tree ring &alpha-cellulose extracted from exactly dated tree rings of Pterocarpus angolensis growing in the arid to semiarid Mzola region of western Zimbabwe. This species is known to be sensitive to seasonal variation in rainfall. In this region, the wet season occurs during the austral summer from mid November to early April followed by a dry winter season from around June through October. Overall, the total annual rainfall exhibits a high degree of spati

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10

Mwitwa, Jacob Pacific. "Growth and physiological parameters related to shoot dieback in Pterocarpus angolensis DC seedlings." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/20431.

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Thesis (PhD)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT:Six experiments, five in the glasshouse and one in the field near Nelspruit, were carried out to ascertain the effect of factors related to shoot die-back, and of water treatments on the growth and physiological responses of Pterocarpus angolensis seedlings. The study was undertaken to broaden the knowledge and understanding of the phenomenon of shoot die-back in order to enhance our ability to regenerate the species. The following experiments were carried out (a) Assessment of biomass accumulation; anatomical characteristi

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11

Ndo, Eunice. "Évaluation des facteurs de risque épidémiologique de la phaeoramulariose des agrumes dans les zones humides du Cameroun." Thesis, Montpellier, SupAgro, 2011. http://www.theses.fr/2011NSAM0034/document.

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La phaeoramulariose des agrumes (Pseudocercospora angolensis) attaque les agrumes en Afrique tropicale et constitue une menace pour les autres pays producteurs situés en zone tropicale. La lutte chimique est le seul moyen de lutte efficace contre cette maladie. Cependant, elle est couteuse et néfaste pour l'environnement. La mise en place de stratégies de lutte permettant de minimiser l'emploi de fongicides contre est donc nécessaire. La connaissance des facteurs de risque de la phaeoramulariose est une étape préliminaire à cette démarche. Le travail entrepris avait pour but de préciser, à l'a

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12

Pretorius, Mathys Cornelius. "Epidemiology and control of Pseudocercospora angolensis fruit and leaf spot disease on citrus in Zimbabwe." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/20938.

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Thesis (MScAgric)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: Fruit and Leaf Spot Disease (FLSD) of citrus, caused by Phaeoramularia angolensis, is found only in 18 countries in Africa, the Comores Islands in the Indian Ocean and Yemen in the Arabian peninsula. The major citrus export countries in Africa are Morocco, South Africa, Swaziland, and Zimbabwe. Zimbabwe is the only country affected by FLSD. FLSD is a disease of major phytosanitary and economic importance and its devastating effect on citrus is highlighted by the fact that the damage is cosmetic, which renders the fr

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13

Achel, Daniel Gyingiri. "Estudio comparativo del efecto radioprotector de un extracto de pycnanthus angolensis frente al daño inducido por rayos X= Comparative study of the radioprotective effect of an extract of pycnanthus angolensis against damage induced by X-rays." Doctoral thesis, Universidad de Murcia, 2013. http://hdl.handle.net/10803/117787.

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Se pretende la obtención de un extracto de semillas de P.angolensis (PASE) para determinar su capacidad protectora contra el daño inducido por rayos X, así como compararla con otros radioprotectores utilizados en radioterapia y en radiobiología. PASE presentó una capacidad genoprotectora significativa (p<0,001) frente al daño inducido por rayos X con un factor de protección del 25-35% y factor de reducción de dosis entre 2,5-3,7, dependiendo del momento de administración. La supervivencia celular tras la exposición a 10Gy de rayos X mostró un factor de protección del 86% en las células epiteli

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14

Kamagaju, Léocadie. "Problem of skin depigmentation in Rwanda: modulators of tyrosinase extracted from plants used in traditional medicine." Doctoral thesis, Universite Libre de Bruxelles, 2014. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209316.

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La dépigmentation volontaire est une pratique bien connue en Afrique sub-saharienne. Elle se définit comme une pratique par laquelle une personne, de sa propre initiative, tente de diminuer la pigmentation mélanique physiologique de sa propre peau. Les utilisateurs appliquent sur le corps, généralement sans surveillance médicale, de manière soutenue et prolongée, des produits ou des mélanges chimiques composés d’actifs dépigmentants souvent d’une grande nocivité.<p>Cette pratique est documentée dans plusieurs pays d’Afrique sub-saharienne (Sénégal, Mali, Burkina Faso, Togo, Nigéria, ….), et su

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15

Anderson, Julie. "Habitat fragmentation and metapopulation dynamics of the Angolan black and white colobus (Colobus angolensis palliatus) in coastal Kenya." Thesis, University College London (University of London), 2005. http://discovery.ucl.ac.uk/1444523/.

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This study investigates the effects of habitat fragmentation on an Angola black-and-white colobus (Colobus angolensis palliatus) metapopulation in southern Kenya. 124 coastal forest fragments were surveyed in 2001. Fifty-five C. a. palliatus populations were found during this survey, (44% habitat patch occupancy), with an estimated national population estimate of 3,100 - 5,000 individuals. Colobus occurrence and density in this forest network was significantly linked to the spatial characteristics and quality of habitat patches. The heterogeneous landscape between habitat patches (matrix) was

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16

Bach, Carlos Batista. "Um passado real no discurso de um sonhador : uma leitura da obra "O vendedor de passados"." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2006. http://hdl.handle.net/10183/8304.

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O presente trabalho aborda a construção da identidade angolana a partir da forma como o discurso literário reelabora as identidades, sejam elas existentes ou inventadas. Através da análise da obra O vendedor de passados de José Eduardo Agualusa, busca-se revelar o discurso criador de um passado ilusório, de modo que a realidade acaba por se confundir com o sonho. Interessante esclarecer que não foi utilizado um viés teórico único para se chegar ao objetivo final. A natureza da obra literária estudada determinou o aporte de reflexões da sociologia, da filosofia e das teorias do imaginário.<br>T

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17

Dunham, Noah T. "Positional behavior and habitat use of Peters’ Angola black and white colobus monkey (Colobus angolensis palliatus) in structurally distinct areas of the Diani Forest, Kenya." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1364549947.

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18

Moses, Moses. "Assessment of trade-offs between timber and carbon values of Pterocarpus angolensis (Kiaat) in the Kavango Region of Namibia : a comparison of current and potential values." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79908.

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Thesis (MScFor)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Kiaat trees in Namibia are threatened by unsustainable harvesting practice. This study’s aim was to estimate the total value of an average Kiaat tree selected for harvesting with a focus on current timber use value, value of an optimally utilised tree, carbon value, and alternative uses of Kiaat trees. To accomplish this aim, the following specific objectives were set: (1) to estimate the total tree volume and optimum utilisable timber volume of an average Kiaat tree; (2) to estimate the amount and value of carbon stored in t

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19

Figueroa, Fernández Sebastián Alejandro. "Descripción y comparación anatómica de huesos de Sicalis flaveola, Saltator similis, Sporophila angolensis, Sporophila caerulescens, con fines de identificación en sitios de sucesos producto del tráfico animal, en Brasil." Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/143676.

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Memoria para optar al Título Profesional de Médico Veterinario.<br>El tráfico de vida silvestre es una industria multimillonaria que amenaza la biodiversidad. Dentro del tráfico animal, destaca el comercio ilícito de aves. Brasil es el hogar de una de las faunas más ricas de aves en el mundo, con 1.832 especies, destacando a las aves paseriformes como las más abundantes. Estas últimas son víctimas comunes de tráfico en este país con más del 70% del total de especímenes traficados cada año. Este ilícito representa una de las pocas actividades económicas para los pobladores amazónicos. El elevad

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20

Ngoepe, Mafora Gloria. "Heterologous expression of a Mukwa (pterocarpus angolensis ) seed lectin (Pal) gene in Escherichia coli, Saccharomyces cerevisiae and Yarrowia lipolytica and construction of Pal recombinant vector for expression in Aspergillus niger." Thesis, University of Limpopo (Turfloop Campus), 2011. http://hdl.handle.net/10386/857.

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Thesis (M.Sc. (Microbiology)) --University of Limpopo, 2011<br>Pterocarpus angolensis seed lectin (PAL), a 28 kDa non glycosylated protein, was initially successfully cloned and expressed in E. coli for ease of high protein production. It was discovered, however, as in similar studies that the recombinant PAL yield in E. coli is low and localized intracellularly. This makes extraction even more difficult because most of the protein is lost either when the cell undergoes lysing or when there is incomplete extraction. As a result of the low yields in E. coli, expression vectors were constructed

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21

Phalatse, Sello David. "A morphological and physio-ecological study of pterocarpus angolensis dc." Thesis, 1986. http://hdl.handle.net/10386/3022.

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22

Mehl, J. W. M. (James William Montague). "Fungi associated with the die-back of Pterocarpus angolensis (kiaat) in South Africa." Diss., 2010. http://hdl.handle.net/2263/29437.

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Pterocarpus angolensis (kiaat) is one of 20 species of trees in the pantropical genus Pterocarpus. The species occurs in Southern Africa and has a broad distribution over several African countries, including Tanzania, Democratic Republic of Congo, Angola, Zambia, Mozambique, Namibia, Botswana, Zimbabwe and South Africa. The tree is commercially used in several traditional medicinal applications and is well-known as a source of timber for woodcarving and furniture. A single serious disease known as mukwa has been reported on P. angolensis, and the cause has been attributed to the generalist fun

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23

Baptista, Ninda Lara 1987. "A review of Amietia angolensis (Bocage, 1866) and Amietia fuscigula (Duméril and Bibron, 1841) (Anura: Pyxicephalidae), using morphology and advertisement calls." Master's thesis, 2011. http://hdl.handle.net/10451/4680.

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Tese de mestrado. Biologia (Biologia da Conservação). Universidade de Lisboa, Faculdade de Ciências, 2011<br>The ability of identifying a species is vital for its effective conservation. River frogs from the genus Amietia are widespread from Southern to north-Eastern Africa, but delineation of species within this genus is at an early stage. The widespread distribution of two species, A. angolensis and A. fuscigula suggests their unresolved taxonomy. A new phylogeny for the genus based on genetic data is under construction. It resulted in a new arrangement for some species, and proposed provisi

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