1,720,978 research outputs found
Impact of quality management on organizational learning and knowledge management
No full textDans cette thèse, nous nous posons la question de l'impact du management de la qualité sur l'apprentissage organisationnel et la gestion des connaissances. En particulier, nous cherchons à comprendre comment le système de management de la qualité (SMQ) ISO 9001 participe effectivement au knowledge management (KM). Tour à tour, nous revisitons la littérature sur l'apprentissage organisationnel, la gestion des connaissances et le management de la qualité, puis nous analysons leurs liens théoriques. En nous basant ensuite sur plusieurs études de cas, nous faisons un état des lieux des SMQ ISO 9001 et des pratiques de KM dans les entreprises et montrons comment les SMQ participent aux pratiques de KM. Trois cas approfondis nous permettent en outre d'étudier le management intégré de la qualité et des connaissances ainsi que des dynamiques d'apprentissage organisationnel et les phénomènes de routinisation des pratiques d'entreprise dans le cadre des SMQ, en fonction des contextes d'adoption de la norme ISO 9001. A l'aide des rapports d'interviews et d'une étude statistique par questionnaire, nous répondons enfin à la question concernant l'impact de ces systèmes de gestion en matière de performance des entreprises. Nos résultats montrent que les SMQ ISO 9001 participent à la gestion des connaissances et à l'apprentissage organisationnel, et que ces systèmes de gestion affectent positivement les performances des entreprises.In this PhD thesis, we present a study of the impact of quality management on organizational learning and knowledge management. Specifically, we try to understand how the ISO 9001 quality management system 5QMS) effectively contributes to knowledge management. We review the literature on organizational learning, knowledge management and quality management, and we examine the theoretical links between those concepts. Relying on a number of case studies, we then investigate quality management and knowledge management practices while providing evidence how QMSs contribute to such practices. In addition, we focus on three cases to study the integrated quality and knowledge management system as weel as the learning dynamics during the deployment of the ISO 9001 standards, according to the context of their implementation. Interviews and a statistical study allow us to also determine the impact of these management systems on organizational performance. Ours findings allow us to conclude that ISO 9001 quality management systems contribute to knowledge management and organizational learning, and that these management systems positively impact corporate performance
Sahra altı Afrika'da kriz iletişimi: Sosyal medya çağında terörist saldırıların medyada görülmesi
No full textIn recent years, terrorist attacks became a serious plague in West African countries. However, there is no academic research about the framing of terrorist. In this research, I will analyse and assess the media agenda setting and crisis communication strategy implemented by media practitioners in West African countries following terrorist attacks. Thereby, this study aims to diagnose the attitude of media professionals in relation to the coverage of terrorism, analyse it and evaluate it in the light of the various ethical and deontological rules that govern the profession of journalism. As a result, the investigations are carried out on samples based on interviews, survey data analysis and contents analysis of the main digital media in Burkina Faso and Mali. Therefore, the current study is essentially qualitative but follows a Sequential Mixed Method. It encompasses an analysis of a total of 219 news articles from “Maliweb.net” and “LeFaso.net”, along with a corpus of 98 surveyed population and 4 interviews realized with “resource persons”...Son yıllarda, Batı Afrika ülkelerinde terör saldırıları ciddi bir veba haline geldi. Ancak, Batı Afrika medyasının terör saldırılarını çerçevelediğine dair, özellikle de sosyal medyanın baskın olduğu bir bağlamda akademik bir araştırma yoktur. Terör olgusunun uygun bir şekilde anlaşılması, yalnızca terörizm, medya ve kamuoyu arasındaki karmaşık ilişkilerin dikkatli bir şekilde değerlendirilmesinden kaynaklanabilir. Böylece bu çalışma, medya profesyonellerinin terör haberciliğine ilişkin tutumunu teşhis etmeyi, analiz etmeyi ve gazetecilik mesleğini yöneten çeşitli etik ve deontolojik kurallar ışığında değerlendirmeyi amaçlamaktadır. Sonuç olarak araştırmalar, Burkina Faso ve Mali'deki ana dijital medyanın mülakatlara, anket veri analizlerine ve içerik analizlerine dayalı örnekler üzerinden yürütülmektedir. Bu nedenle, mevcut çalışma esasen niteldir ancak Sıralı Karma Yöntemi takip eder. “Maliweb.net” ve “LeFaso.net” sitelerinden toplam 219 haber makalesinin analizini, ankete katılan 98 kişilik bir kitleyi ve “kaynak kişiler” ile gerçekleştirilen 4 görüşmeyi kapsamaktadır..
Phytochemical and biological studies of secondary metabolites of pterocarpus erinaceus Poir (fabaceae)
No full textPterocarpus erinaceus Poir. (Fabaceae) est une plante médicinale utilisée dans la prise en charge de nombreuses pathologies dont les maladies à composante inflammatoire au Burkina Faso. Les feuilles, le tronc, et les racines sont utilisés comme remède dans le traitement des dermatoses, de l’inflammation, de l’ulcère, du rhumatisme, de la dysenterie, le paludisme, etc. L’objectif de ce travail était de mener des études phytochimiques et pharmacologiques sur des extraits de Pterocarpus erinaceus Poir. (Fabaceae) afin d’évaluer l’innocuité et l’efficacité de cette plante en vue d’obtenir des pré-requis pour le développement d’un phytomédicament. L’étude phytochimique a été réalisée en utilisant des méthodes chromatographiques (CCM, SPE, CC, VLC, MPLC, CLHP) et spectroscopiques (RMN 1D et 2D). Cette étude a permis d’isoler 18 molécules dont 14 identifiées à savoir la friedeline (2 fois), le lupeol, l’épicatechine, la rutine, la lutéoline, la quercétine-3-O-sophoroside, le kaempferol-3-Osophoroside, la quercétine-3-O-β-glucose, le stigmastérol, la friedeline, le 3α-hydroxyfriedelan-2-one, l’α-sophoradiol et le maltol 6-O-apiofuranoside-glucopyranoside. L’étude sur la toxicité aiguë a montré que les décoctés des feuilles (DECFEU), d’écorces de tronc (DECEC), d’écorces de racines (DECRA) et les extraits méthanoliques des feuilles (MeOH K), d’écorces du tronc (MeOH B) sont considérés comme des substances faiblement toxiques selon l’échelle de toxicité de Hodge et Sterner et de l’OMS. Les effets antiinflammatoires, analgésiques et antipyrétiques des extraits issus des écorces de tronc, des feuilles et des racines ont été validés sur des modèles animaux. Les résultats obtenus dans les tests in vitro (antioxydant, tests sur l’inhibition de la production de TNF α et de nitrite cellulaires, de la peroxydation lipidique et de la lipoxygénase) montrent que les extraits manifestent des effets intéressants; plus particulièrement l’extrait méthanolique des écorces du tronc (MeOH B) qui a le meilleur pouvoir antioxydant (ARP = 5 ; TEAC = 0,9) et la forte inhibition sur la peroxydation lipidique (37,25 %) et sur la lipoxygénase (97,69 %). Par contre l’extrait méthanolique des feuilles (MeOH K) a présenté la forte inhibition à la concentration de 50 μg/mL sur la production de TNF α (37,35 % et 30 %) et de NO (95 % et 50%) dans la culture de macrophages activés par LPS et LPS/IFN γPterocarpus erinaceus Poir. (Fabaceae) is a medicinal plant used in the treatment of several diseases including diseases inflammatory component in Burkina Faso. The leaves, stem and roots are used as a drug in the treatment of skin diseases, inflammation, ulcer, rheumatism, dysentery, malaria. The aim of this study was to carry out phytochemical and pharmacological studies on extracts of Pterocarpus erinaceus Poir. (Fabaceae) to evaluate the safety and efficacy of this plant to obtain the data for the development of a drug. Phytochemical study has been performed using chromatographic methods (TLC, SPE, CC, VLC, MPLC, HPLC) and spectroscopic (1D and 2D NMR). This study has been leading to isolated 18 molecules including 14 identified namely friedelin, lupeol, epicatechin, rutin, luteolin, quercetin-3-O-sophorosid, kaempferol-3-O-sophorosid, quercetin-3-O-β-glucose, stigmasterol, 3α-hydroxyfriedelan-2-on, α-sophoradiol, maltol-6-O-apiofuranosideglucopyranoside. The test on acute toxicity showed that the decoction of the leaves (DECFEU), stem (DECEC), roots (DECRA) and methanol extracts of leaves (MeOH K), stem bark (MeOH B) are considered slightly toxic substances according to the toxicity scale of Hodge and Sterner and WHO. The anti-inflammatory, analgesic and antipyretic extracts from the stem bark, leaves and roots have been validated en animal models. The results obtained in vitro test (antioxidant test, tests on the inhibition of the production of cellular TNF α and nitrite, lipid peroxidation and lipoxygénase) showed that the extracts exhibited effects, especially the methanol extract stem bark (MeOH B) which has the best antioxidant power (ARP = 5; TEAC = 9) and the strongest inhibition of lipid peroxidation (37.25 %) and lipoxygénase (97.69 %). However the methanol extract of leaves (MeOH K) presented strong inhibition at a concentration of 50 μg/mL on the production of TNF α (37.35 % and 30 %) and NO (95 % and 50 %) in the macrophages cultures active by LPS and LPS/INF-
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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