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Search Results: 1 - 10 of 9988 matches for " Mavoungou Na?ving Flovique Rosère "
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Changes in Chemical Composition of Soluble Organic Chemical Compounds during Litters Decomposition into Tropical Forest of Milletia laurentii De Wild  [PDF]
Gouolaly Tsiba, Mavoungou Naving Flovique Rosère, Edzonga Josianne, Milandou Matoko Jodhry Préféré, Malonga Urielle Marini, Madingou Parfait Noé, Binsangou Stoffenne, Ifo Suspense Averti
Open Journal of Forestry (OJF) , 2019, DOI: 10.4236/ojf.2019.91003
Abstract: Recent publication attested that in the urban forest of Brazzaville, litter decomposition is faster with almost 45% of initial weight loss than in the dry season, where an average loss of 26% in initial litter weight is noted (Ifo et al., 2018). This study was carried out in the urban forest of Brazzaville to follow the decomposition of some organic compounds/secondary metabolites (reducing Sugars, total Flavonoid and Polyphenols) of the leaves litters of two tropical species Antiaris toxicaria Lesch and Millettia laurentii De Wild. Thin-layer chromatography and spectrophotometric assay of these metabolites were used on the samples of litters collected in the field on various dates of follow-up of the decomposition (0 d, 14 d, 28 d, 42 d, 56 d, 72 d and 84 d). The chromatographic profile of initial litters shows a series of spots on yellow florescence materializing presence of flavonoids, green fluorescence revealing the presence of the acids phenols derived from the cinnamic acid. But the chromatographic profile of the two litters in decomposition after two weeks remains without structural information, being able to characterize the decomposition of the chemical families highlighted in the initial litters. Also, the analysis of quantitative total reducing sugar in the initial litters, gives average concentrations of 64.4, 58.6, 57.5 g EG/kg Ms respectively for the litters of Millettia laurentii De Wild, Antiaris toxicaria Lesch and the mixed litters (Millettia laurentii and Antiaris toxicaria). Comparatively with the other types of litters, the initial average concentrations in phenolic compounds (polyphenols and flavonoids totals) were the highest for the litters of Antiaris toxicaria Lesch (27.3 g EAG/kg Ms and 13.07 g EC/kg Ms) (P = 0.001). The losses of organic chemical compounds are more significant during the first two weeks of experiment than after this period. Antiaris toxicaria Lesch loses on average 43.8 g EG/kg Ms of reducing Sugars, 12.21 g EC/kg Ms of totals flavonoids and 26.4 g EAG/kg Ms of total polyphenols, equivalent to 30% of loss of the initial weight. Average losses of 45.7 g EG/kg Ms were obtained for reducing sugars, 1.5 g EC/kg Ms for totals flavonoids and 8.72 g EAG/kg Ms for totally phenols in for the litters of Millettia laurentii, comparable to 24% in initial weight loss. This study showed on the one hand, the direct link between rainfall and litters decomposition and the losses in weight of the litters resulted in
A Trilingual Dictionary Yilumbu– French–English: An Ongoing Project
P Mavoungou
Lexikos , 2006,
Abstract: In this article, an account is given of the planning of a trilingual dictionary Yilumbu– French–English. The focus is on the target user, the purpose, nature and typology of the planned dictionary. Attention is also paid to some macro- and microstructural issues. For example, all types of lexical items, including multiword lexical items, are given lemma status. Moreover all items are included according to the word tradition and on account of their usage frequency in the corpus. Apart from these aspects, types of dialectal forms as well as the type of special-field lexical items are also discussed. From a microstructural point of view, this article investigates different kinds of data types to be considered for inclusion in complex articles in particular. User-friendliness parameters and innovative access structure procedures also come into play.
Review: ILALOK: Dictionnaire vili–fran ais/Mpisukulu bi kum' bi tshi vili ku tshi mputu
PA Mavoungou
Lexikos , 2009,
Abstract: ILALOK. Dictionnaire vili–fran ais/Mpisukulu bi kum' bi tshi vili ku tshi mputu. 2008, 232 pp. ISBN 978-2-296-04939-0. Paris: L'Harmattan. Prix: €22.
Place et nécessité des travaux religieux, ethnohistoriques et linguistiques dans le paysage dictionnairique gabonais
PA Mavoungou
Lexikos , 2009,
Abstract: Les dictionnaires devraient être le reflet d'une grande variété de découvertes enregistrées dans le domaine de la linguistique. Au Gabon, en ce qui concerne les rapports entre la lexicographie et la linguistique, des études doivent être menées. Cet article ne retrace pas seulement l'histoire de la discipline lexicographique au Gabon, mais également comment les travaux pionniers dans les domaines de la linguistique, de la religion et de l'ethnohistoire, ont servi (et devraient continuer de servir) de travaux de référence pour la compilation de nouveaux dictionnaires. Compte tenu du fait que la majorité des dictionnaires existant a été le résultat de la contribution de lexicographes isolés, on peut espérer que les futurs produits lexicographiques ne seront pas seulement des réservoirs de connaissances linguistiques et culturelles mais également le résultat d'un travail d'équipe. Mots-clés: lexicographie, unité(s)-langue(s), linguistique, études religieuses, ethnohistoire, travail d'équipe, metalexicographie
English for Specific Purposes: The Perpetuation of the Species
Dana Nora NA?CA-TARTIèRE
Studii de Stiinta si Cultura , 2011,
Abstract: This article offers a short introduction to English for Specific Purposes (ESP) and tries to (re)define this field still in search of an identity. It begins with a semantic decortication of the term “ESP”, focusing on its implications for the research community. Furthermore, this paper examines the specificities of ESP and then it addresses the controversial question of how much specialist knowledge the ESP teacher needs. Finally, the article emphasizes the future of this discipline and its potential evolution.
On Issues of Labelling in the "Dictionnaire Fran ais–Mpongwé": A Case-study
P.A Mavoungou
Lexikos , 2005,
Abstract: Dictionaries contain lexicographic data whose occurrence is restricted to certain geo-graphical areas, subject fields, professions, etc. It is part of the duties of the lexicographer to give an account of such deviations to ensure a successful retrieval of the information on the part of the user. This contribution presents a discussion on labelling issues in the Dictionnaire Fran ais–Mpongwé. Although the main focus is on the presentation of different types of labelling as well as problems in labelling, textual condensation procedures and mediostructural representations (to-gether with some aspects of the user perspective) are also critically evaluated. It is shown that these procedures reveal some inconsistencies which are not accounted for in the outer texts (front matter and back matter texts) of the dictionary. Finally suggestions are made for the improvement of the access structure of this dictionary.
Gedandedi sa Geviya/ Dictionnaire Geviya–Fran ais
P.A Mavoungou
Lexikos , 2004,
Abstract: No L.J. van der Veen et S. Bodinga-bwa-Bodinga. Gedandedi sa Geviya/ Dictionnaire Geviya–Fran ais. 2002, 569 pp. ISBN 90-429-1105-0 (Peeters Louvain)/ISBN 2-87723-621-8 (Peeters France). Louvain/Paris/Sterling, Virginia: Peeters. Price: €60.
Synopsis articles in the planning of a trilingual dictionary: Yilumbu– French–English
P.A Mavoungou
Lexikos , 2002,
Abstract: A distinction is often drawn between single articles and synopsis articles. A single article is the so-called default article. It does not deviate from the traditional microstructural approach of the dictionary because it presents the minimum data for each lemma sign treated, while a synopsis article gives additional data for each treated lemma. The classical conception of the synopsis article originates with Bergenholtz, Tarp and Wiegand (1999). In their view, synopsis articles which were devised for language for special purposes (LSP) dictionaries have to make provision for the treatment of lemma signs functioning as superordinate terms (general lemmata or topics) as well as their hyponyms. The aim of this article is to present a new lexicographic approach to the study of synopsis articles against the background of a planned trilingual dictionary. It will be shown that synopsis articles have a more general use than its restricted application in LSP dictionaries. In fact, the focus will not be on the treatment of technical or scientific vocabulary but rather on cultural terms. This article also raises among other things, questions about the purpose of the planned dictionary, its target users, different types of microstructures as well as different data categories to be included in synopsis articles.
Macro- and microstructural issues in Mazuna Lexicography
P.A Mavoungou
Lexikos , 2001,
Abstract: All the works in Mazuna lexicography have a common denominator: they are translation dictionaries biased towards French and were compiled by Catholic and Protestant missionaries or colonial administrators. These dictionaries have both strong and weak points. The macrostructure although it does not display features of sophistication, i.e. the use of niching and nesting procedures, tends to survey the full lexicon of the language which make these dictionaries real reservoirs of knowledge. The microstructure contains a lot of useful entries. However, no metalexicographic discussion is provided in the user's guide to make it accessible to the target reader. There are also some shortcomings especially in the areas of suprasegmental phonology (absence of tonal indications) and orthography.
A Trilingual Dictionary Yilumbu-French-English: An Ongoing Project
Paul Achille Mavoungou
Lexikos , 2011, DOI: 10.5788/16--652
Abstract: : In this article, an account is given of the planning of a trilingual dictionary Yilumbu–French–English. The focus is on the target user, the purpose, nature and typology of the planneddictionary. Attention is also paid to some macro- and microstructural issues. For example, all typesof lexical items, including multiword lexical items, are given lemma status. Moreover all items areincluded according to the word tradition and on account of their usage frequency in the corpus.Apart from these aspects, types of dialectal forms as well as the type of special-field lexical itemsare also discussed. From a microstructural point of view, this article investigates different kinds ofdata types to be considered for inclusion in complex articles in particular. User-friendliness parametersand innovative access structure procedures also come into play. Keywords: DICTIONARY, LEXICOGRAPHY, DICTIONARY PLAN, METALEXICOGRAPHY, TARGET GROUP, GABON, SOURCE LANGUAGE, TARGET LANGUAGE, ENGLISH, FRENCH, YILUMBU Résumé: Un dictionnaire trilingue yilumbu–fran ais–anglais: projet encours. Cet article rend compte de la planification d'un dictionnaire trilingue yilumbu–fran ais–anglais. Le centre d'intérêt réside au niveau du public cible, l'objectif, la nature et la typologie dudictionnaire proposé. Une attention est aussi accordée à quelques problèmes macro- et microstructurels.Par exemple, tous les types d'items lexicaux, y compris les items lexicaux formés de plusieursmots, re oivent le statut de lemme. En outre, tous les termes sont inclus selon la tradition dumot et sur la base de leur fréquence d'emploi dans le corpus. Hormis ces aspects, les types de formesdialectales ainsi que le type d'items lexicaux de spécialité sont également discutés. D'un pointde vue microstructurel, cet article explore différents types de données à considérer pour inclusiondans les articles complexes en particulier. Les paramètres de clarté et de lisibilité ainsi que desprocédés propre à la structure d'accès sont également pris en compte. Mots-clés: DICTIONNAIRE, LEXICOGRAPHIE, PLAN DE DICTIONNAIRE, MéTALEXICOGRAPHIE,PUBLIC CIBLE, GABON, LANGUE SOURCE, LANGUE CIBLE, ANGLAIS,FRAN AIS, YILUMBU
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