Bibliographies thématiques / RDRC

Sommaire

Articles de revues
Thèses
Livres
Chapitres de livres
Actes de conférences
Rapports d'organisations

Littérature scientifique sur le sujet « RDRC »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 8 février 2022

Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres

Choisissez une source :

Consultez les listes thématiques d’articles de revues, de livres, de thèses, de rapports de conférences et d’autres sources académiques sur le sujet « RDRC ».

À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.

Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.

Articles de revues sur le sujet "RDRC"

Hua, Xia, Nathan D. Berkowitz, Matthew R. Willmann, Xiang Yu, Eric Lyons et Brian D. Gregory. « Global Analysis of RNA-Dependent RNA Polymerase-Dependent Small RNAs Reveals New Substrates and Functions for These Proteins and SGS3 in Arabidopsis ». Non-Coding RNA 7, n^o 2 (27 avril 2021) : 28. http://dx.doi.org/10.3390/ncrna7020028.

Texte intégral

Résumé :

RNA silencing pathways control eukaryotic gene expression transcriptionally or posttranscriptionally in a sequence-specific manner. In RNA silencing, the production of double-stranded RNA (dsRNA) gives rise to various classes of 20–24 nucleotide (nt) small RNAs (smRNAs). In Arabidopsis thaliana, smRNAs are often derived from long dsRNA molecules synthesized by one of the six genomically encoded RNA-dependent RNA Polymerase (RDR) proteins. However, the full complement of the RDR-dependent smRNAs and functions that these proteins and their RNA-binding cofactors play in plant RNA silencing has not been fully uncovered. To address this gap, we performed a global genomic analysis of all six RDRs and two of their cofactors to find new substrates for RDRs and targets of the resulting RDR-derived siRNAs to uncover new functions for these proteins in plants. Based on these analyses, we identified substrates for the three RDRγ clade proteins (RDR3–5), which had not been well-characterized previously. We also identified new substrates for the other three RDRs (RDR1, RDR2, and RDR6) as well as the RDR2 cofactor RNA-directed DNA methylation 12 (RDM12) and the RDR6 cofactor suppressor of gene silencing 3 (SGS3). These findings revealed that the target substrates of SGS3 are not limited to those solely utilized by RDR6, but that this protein seems to be a more general cofactor for the RDR family of proteins. Additionally, we found that RDR6 and SGS3 are involved in the production of smRNAs that target transcripts related to abiotic stresses, including water deprivation, salt stress, and ABA response, and as expected the levels of these mRNAs are increased in rdr6 and sgs3 mutant plants. Correspondingly, plants that lack these proteins (rdr6 and sgs3 mutants) are hypersensitive to ABA treatment, tolerant to high levels of PEG8000, and have a higher survival rate under salt treatment in comparison to wild-type plants. In total, our analyses have provided an extremely data-rich resource for uncovering new functions of RDR-dependent RNA silencing in plants, while also revealing a previously unexplored link between the RDR6/SGS3-dependent pathway and plant abiotic stress responses.

Styles APA, Harvard, Vancouver, ISO, etc.

Wang, Lei, Neil A. Smith, Lan Zhang, Elizabeth S. Dennis, Peter M. Waterhouse, Peter J. Unrau et Ming-Bo Wang. « Synthesis of complementary RNA by RNA-dependent RNA polymerases in plant extracts is independent of an RNA primer ». Functional Plant Biology 35, n^o 11 (2008) : 1091. http://dx.doi.org/10.1071/fp08118.

Texte intégral

Résumé :

RNA-dependent RNA polymerase (RDR) activities were readily detected in extracts from cauliflower and broccoli florets, Arabidopsis thaliana (L.) Heynh callus tissue and broccoli nuclei. The synthesis of complementary RNA (cRNA) was independent of a RNA primer, whether or not the primer contained a 3′ terminal 2′-O-methyl group or was phosphorylated at the 5′ terminus. cRNA synthesis in plant extracts was not affected by loss-of-function mutations in the DICER-LIKE (DCL) proteins DCL2, DCL3, and DCL4, indicating that RDRs function independently of these DCL proteins. A loss-of-function mutation in RDR1, RDR2 or RDR6 did not significantly reduce the amount of cRNA synthesis. This indicates that these RDRs did not account for the bulk RDR activities in plant extracts, and suggest that either the individual RDRs each contribute a fraction of polymerase activity or another RDR(s) is predominant in the plant extract.

Styles APA, Harvard, Vancouver, ISO, etc.

DeBeauchamp, Jennifer L., Arian Moses, Victoria J. P. Noffsinger, Dagny L. Ulrich, Godwin Job, Aaron M. Kosinski et Janet F. Partridge. « Chp1-Tas3 Interaction Is Required To Recruit RITS to Fission Yeast Centromeres and for Maintenance of Centromeric Heterochromatin ». Molecular and Cellular Biology 28, n^o 7 (22 janvier 2008) : 2154–66. http://dx.doi.org/10.1128/mcb.01637-07.

Texte intégral

Résumé :

ABSTRACT The maintenance of centromeric heterochromatin in fission yeast relies on the RNA interference-dependent complexes RITS (RNA-induced transcriptional silencing complex) and RDRC (RNA-directed RNA polymerase complex), which cooperate in a positive feedback loop to recruit high levels of histone H3 K9 methyltransferase activity to centromeres and to promote the assembly and maintenance of centromeric heterochromatin. However, it is unclear how these complexes are targeted to chromatin. RITS comprises Chp1, which binds K9-methylated histone H3; Ago1, which binds short interfering (siRNAs); the adaptor protein Tas3, which links Ago1 to Chp1; and centromeric siRNAs. We have generated mutants in RITS to determine the contribution of the two potential chromatin-targeting proteins Chp1 and Ago1 to the centromeric recruitment of RITS. Mutations in Tas3 that disrupt Ago1 binding are permissive for RITS recruitment and maintain centromeric heterochromatin, but the role of Tas3's interaction with Chp1 is unknown. Here, we define the Chp1 interaction domain of Tas3. A strain expressing a tas3 mutant that cannot bind Chp1 (Tas3Δ 10-24) failed to maintain centromeric heterochromatin, with a loss of centromeric siRNAs, a failure to recruit RITS and RDRC to centromeres, and high levels of chromosome loss. These findings suggest a pivotal role for Chp1 and its association with Tas3 for the recruitment of RITS, RDRC, and histone H3 K9 methyltransferase activity to centromeres.

Styles APA, Harvard, Vancouver, ISO, etc.

Qu, Feng. « Antiviral Role of Plant-Encoded RNA-Dependent RNA Polymerases Revisited with Deep Sequencing of Small Interfering RNAs of Virus Origin ». Molecular Plant-Microbe Interactions® 23, n^o 10 (octobre 2010) : 1248–52. http://dx.doi.org/10.1094/mpmi-06-10-0124.

Texte intégral

Résumé :

Several recent studies profiled virus-specific small interfering RNAs (vsRNAs) using next generation sequencing platforms and compellingly implicated plant-encoded RNA-dependent RNA polymerases (RDR) in vsRNA biogenesis and vsRNA-mediated antiviral defense. Specifically, both RDR1 and RDR6 were found to contribute to the accumulation of vsRNAs in virus-infected cells. While RDR1 was responsible for the majority of vsRNAs in plants infected with three different viruses, RDR6 acted as a surrogate when RDR1 function was disrupted. Mechanistically, vsRNAs associated with RDR1 mostly mapped to viral RNA regions close to the 5′ ends, whereas those associated with RDR6 mapped to more 3′ regions and appeared to be dependent on higher viral RNA concentrations. Knocking out both RDR1 and RDR6 led to drastically diminished vsRNA levels concomitant with enhanced viral RNA accumulation. In conclusion, these studies established that RDR1 and RDR6 function synergistically to contain RNA virus infections through the RNA silencing–based antiviral defense.

Styles APA, Harvard, Vancouver, ISO, etc.

Adkar-Purushothama, Charith Raj, et Jean-Pierre Perreault. « Suppression of RNA-Dependent RNA Polymerase 6 Favors the Accumulation of Potato Spindle Tuber Viroid in Nicotiana Benthamiana ». Viruses 11, n^o 4 (14 avril 2019) : 345. http://dx.doi.org/10.3390/v11040345.

Texte intégral

Résumé :

To date, two plant genes encoding RNA-dependent RNA polymerases (RdRs) that play major roles in the defense against RNA viruses have been identified: (i) RdR1, which is responsible for the viral small RNAs (vsRNAs) found in virus-infected plants, and, (ii) RdR6, which acts as a surrogate in the absence of RdR1. In this study, the role of RdR6 in the defense against viroid infection was examined by knock-down of RdR6 followed by potato spindle tuber viroid (PSTVd) infection. The suppression of RdR6 expression increased the plant’s growth, as was illustrated by the plant’s increased height. PSTVd infection of RdR6 compromised plants resulted in an approximately three-fold increase in the accumulation of viroid RNA as compared to that seen in control plants. Additionally, RNA gel blot assay revealed an increase in the number of viroids derived small RNAs in RdR6 suppressed plants as compared to control plants. These data provide a direct correlation between RdR6 and viroid accumulation and indicate the role of RDR6 in the plant’s susceptibility to viroid infection.

Styles APA, Harvard, Vancouver, ISO, etc.

Abdul Adziz, Mohd Izwan, Nor Amira Amalina Mohd Badri et Kok Siong Khoo. « Determination of Uranium Internal Dose Exposure through Soil Digestion Using RDRC and URODC Software ». Sains Malaysiana 47, n^o 4 (30 avril 2018) : 797–803. http://dx.doi.org/10.17576/jsm-2018-4704-19.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Motamedi, Mohammad R., André Verdel, Serafin U. Colmenares, Scott A. Gerber, Steven P. Gygi et Danesh Moazed. « Two RNAi Complexes, RITS and RDRC, Physically Interact and Localize to Noncoding Centromeric RNAs ». Cell 119, n^o 6 (décembre 2004) : 789–802. http://dx.doi.org/10.1016/j.cell.2004.11.034.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Karimi, H. R., H. Du, J. Lin et X. Zeng. « Guest Editorial : Focused Section on Reliability Design and Resilient Control for Intelligent Mechatronic Systems (RDRC-IMS) ». IEEE/ASME Transactions on Mechatronics 24, n^o 6 (décembre 2019) : 2437–40. http://dx.doi.org/10.1109/tmech.2019.2953396.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Donaire, Livia, Daniel Barajas, Belén Martínez-García, Llucia Martínez-Priego, Israel Pagán et César Llave. « Structural and Genetic Requirements for the Biogenesis of Tobacco Rattle Virus-Derived Small Interfering RNAs ». Journal of Virology 82, n^o 11 (19 mars 2008) : 5167–77. http://dx.doi.org/10.1128/jvi.00272-08.

Texte intégral

Résumé :

ABSTRACT In plants, small RNA-guided processes referred to as RNA silencing control gene expression and serve as an efficient antiviral mechanism. Plant viruses are inducers and targets of RNA silencing as infection involves the production of functional virus-derived small interfering RNAs (siRNAs). Here we investigate the structural and genetic components influencing the formation of Tobacco rattle virus (TRV)-derived siRNAs. TRV siRNAs are mostly 21 nucleotides in length and derive from positive and negative viral RNA strands, although TRV siRNAs of positive polarity are significantly more abundant. This asymmetry appears not to correlate with the presence of highly structured regions of single-stranded viral RNA. The Dicer-like enzyme DCL4, DCL3, or DCL2 targets, alone or in combination, viral templates to promote synthesis of siRNAs of both polarities from all regions of the viral genome. The heterogeneous distribution profile of TRV siRNAs reveals differential contributions throughout the TRV genome to siRNA formation. Indirect evidence suggests that DCL2 is responsible for production of a subset of siRNAs derived from the 3′ end region of TRV. TRV siRNA biogenesis and antiviral silencing are strongly dependent on the combined activity of the host-encoded RNA-dependent RNA polymerases RDR1, RDR2, and RDR6, thus providing evidence that perfectly complementary double-stranded RNA serves as a substrate for siRNA production. We conclude that the overall composition of viral siRNAs in TRV-infected plants reflects the combined action of several interconnected pathways involving different DCL and RDR activities.

Styles APA, Harvard, Vancouver, ISO, etc.

Guo, Zhongxin, Jinfeng Lu, Xianbing Wang, Binhui Zhan, Wanxiang Li et Shou-Wei Ding. « Lipid flippases promote antiviral silencing and the biogenesis of viral and host siRNAs in Arabidopsis ». Proceedings of the National Academy of Sciences 114, n^o 6 (25 janvier 2017) : 1377–82. http://dx.doi.org/10.1073/pnas.1614204114.

Texte intégral

Résumé :

Dicer-mediated processing of virus-specific dsRNA into short interfering RNAs (siRNAs) in plants and animals initiates a specific antiviral defense by RNA interference (RNAi). In this study, we developed a forward genetic screen for the identification of host factors required for antiviral RNAi in Arabidopsis thaliana. Using whole-genome sequencing and a computational pipeline, we identified aminophospholipid transporting ATPase 2 (ALA2) and the related ALA1 in the type IV subfamily of P-type ATPases as key components of antiviral RNAi. ALA1 and ALA2 are flippases, which are transmembrane lipid transporter proteins that transport phospholipids across cellular membranes. We found that the ala1/ala2 single- and double-mutant plants exhibited enhanced disease susceptibility to cucumber mosaic virus when the virus-encoded function to suppress RNAi was disrupted. Notably, the antiviral activity of both ALA1 and ALA2 was abolished by a single amino acid substitution known to inactivate the flippase activity. Genetic analysis revealed that ALA1 and ALA2 acted to enhance the amplification of the viral siRNAs by RNA-dependent RNA polymerase (RdRP) 1 (RDR1) and RDR6 and of the endogenous virus-activated siRNAs by RDR1. RNA virus replication by plant viral RdRPs occurs inside vesicle-like membrane invaginations induced by the recruitment of the viral RdRP and host factors to subcellular membrane microdomains enriched with specific phospholipids. Our results suggest that the phospholipid transporter activity of ALA1/ALA2 may be necessary for the formation of similar invaginations for the synthesis of dsRNA precursors of highly abundant viral and host siRNAs by the cellular RdRPs.

Styles APA, Harvard, Vancouver, ISO, etc.

Plus de sources

Thèses sur le sujet "RDRC"

Lindberg, Sandra. « Common cause failure analysis : Methodology evaluation using Nordic experience data ». Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-131841.

Texte intégral

Résumé :

Within the nuclear industry there is an extensive need for evaluation of the safety of the plant. In such evaluations there is one phenomenon requiring some particular treatment, namely common cause failure (CCF). This involves the occurrences of components failing dependently, meaning failures that can overcome the applied redundancy or diversity. The impact of CCF is relatively large, but unfortunately the process of CCF analysis is complicated by the complex nature of CCF events and a very sparse availability of CCF data. Today, there are a number of methods for CCF analysis available with different characteristics, especially concerning their qualitative and quantitative features. The most common working procedure for CCF treatment is to divide the analysis in a qualitative and a quantitative part, but unfortunately the development of tools for the qualitative part has to a certain extent got behindhand. This subject is further explored in a comparative study focused on two totally different approaches for CCF analysis, the impact vector method and the unified partial method. Based on insights from this study an integrated impact vector and ‘Relations of Defences, Root causes and Coupling factors’ (RDRC) methodology is suggested to be further explored for progress towards a methodology incorporating both qualitative and quantitative aspects.

Styles APA, Harvard, Vancouver, ISO, etc.

Moore, Tim. « The RdgC protein of Escherichia coli ». Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250574.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Bastiaens, Th J. « Onderwijskundige innovatie : down to earth over realistische elektronische ondersteuning bij leren en instructie / ». [Heerlen] : Open Universiteit, 2007. http://www.ou.nl/Docs/Expertise/RdMC/Publicaties%202007/oratie_Theo_Bastiaens_web.pdf.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Yu, Jing. « Structural and genetic analyses of the RdgC protein in Escherichia coli ». Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/10961/.

Texte intégral

Résumé :

Previous studies found that RdgC protein plays a role in the DNA repair system in Escherichia coli. In recBC sbcBC strains, loss of rdgC made growth of the strains dependent upon recombination, hence Recombination Dependent Growth. RdgC was also found to regulate the activity of RecA, a key protein in recombination, both in vivo and in vitro. The function of the protein, however, remains unknown. In this study, I purified and crystallised the RdgC protein. The crystal structure of the protein was then revealed as a homo-dimer, with a head to head, tail to tail organisation, resembling a ring structure. To further investigate how RdgC binds DNA and its in vivo functionality, point mutations and chunk deletions were designed and constructed; and I examined all the mutant proteins in DNA binding shift assays in vitro and in synthetic lethality assays in vivo. A DNA binding model was then proposed based on the results of the DNA binding shift assays. The mutant studies in vivo reinforce the idea that the DNA binding activity is crucial for RdgC’s function in Escherichia coli.

Styles APA, Harvard, Vancouver, ISO, etc.

Lewis, Michael. « Fear Conditioning as an Intermediate Phenotype : An RDoC Inspired Methodological Analysis ». Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/83837.

Texte intégral

Résumé :

Due to difficulties in elucidating neurobiological aspects of psychological disorders, the National Institute of Mental Health (NIMH) created the Research Domain Criteria (RDoC), which encourages novel conceptualizations of the relationship between neurobiological circuitry and clinical difficulties. This approach is markedly different from the Diagnostic and Statistical Manual of Mental Disorders (DSM) based approach that has dominated clinical research to date. Thus, RDoC necessitates exploration of novel experimental and statistical approaches. Fear learning paradigms represent a promising methodology for elucidating connections between acute threat (“fear”) circuitry and fear-related clinical difficulties. However, traditional analytical approaches rely on central tendency statistics, which are tethered to a priori categories and assume homogeneity within groups. Growth Mixture Modeling (GMM) methods such as Latent Class Growth Analysis (LCGA) may be uniquely suited for examining fear learning phenotypes. However, just three extant studies have applied GMM to fear learning and only one did so in a human population. Thus, the degree to which classes identified in known studies represent characteristics of the general population and to which GMM methodology is applicable across populations and paradigms is unclear. This preliminary study applied LCGA to a fear learning lab study in an attempt to identify heterogeneity in fear learning patterns based on a posteriori classification. The findings of this investigation may inform efforts to move toward a trans-diagnostic conceptualization of fear learning. Consistent with the goals laid out in RDoC, explication of fear learning phenotypes may eventually provide critical information needed to spur innovation in psychotherapeutic and psychopharmacological treatment.
Master of Science
To date, most clinical psychology research has been based on the Diagnostic and Statistical Manual of Mental Disorders (DSM), which is a catalog of mental health disorders that was originally designed to facilitate communication among clinicians. Many experts contend that this approach has hampered progress in the field of biological clinical psychology research. Thus, the National Institute of Mental Health (NIMH) created a new template for biological clinical psychology research called the Research Domain Criteria (RDoC). Since RDoC calls for a complete overhaul in the conceptualization of clinical dysfunction, this approach requires statistical and experimental innovation. One traditional experimental approach that may be helpful in understanding the RDoC topic of acute threat (“fear”) is called Pavlovian Fear Learning (PFL). However, traditional PFL studies have utilized statistical methods that are based on comparing group averages and require researchers to determine groups of interest based on theory before the study begins. This is problematic because RDoC calls for research that begins with evidence rather than theory. Growth Mixture Modeling (GMM) is a statistical methodology that may allow researchers to analyze fear learning data without having to begin with theoretically determined categories such as DSM disorders. However, little research has tested how well this approach would work. This study is just the second to apply a GMM approach to a human PFL study. The findings from this investigation may inform efforts to develop a statistical technique that is well suited for RDoCian research and may also spur innovation in psychotherapeutic and psychopharmacological treatment.

Styles APA, Harvard, Vancouver, ISO, etc.

Alsubaie, Fehaid. « Cu(0)-mediated RDRP : synthesis of multiblock copolymers and mechanistic studies ». Thesis, University of Warwick, 2016. http://wrap.warwick.ac.uk/81846/.

Texte intégral

Résumé :

The aim of this work is to investigate the versatility of Cu(0)-mediated reversible deactivation radical polymerisation (RDRP) in aqueous media in order to facilitate the synthesis of multiblock copolymers consisting of various acrylamides. Under carefully optimised conditions, a simple and highly efficient one-pot polymerisation procedure (full conversion for each block and no intermediate purification required) will be developed allowing access to iterative monomer additions, fast polymerisation rates and high level of control. As a result, complex microstructures (such as hexablocks) can be achieved in a quantitative manner in a matter of few hours, which consists the fastest synthesis of such material up to date. However, the loss of the halide chain end will be shown to be the main limitation of the in situ chain extensions and block copolymerisations of acrylamides in water. In order to assess the effect of the nature of the monomer to the loss of the end group fidelity, a further investigation into the monomer nature and the lifetime of the ω-Br chain end will be conducted further highlighting the importance to monomer structure and sequence in poly(acrylamide)s multiblocks in order to maximise the retention of the bromine chain end. At the second part of this thesis, a mechanistic investigation of Cu(0)-mediated polymerisation in organic and aqueous media will also be presented. The role of the Cu(0) on the polymerisation kinetics and will be extensively investigated differentiating Cu(0)-wire from the in situ generated Cu(0) particles. The extent of disproportionation and comproportionation reactions in aqueous, organic and aqueous/organic mixtures will be also evaluated and the effect of the monomer on these reactions will also be shown demonstrating a completely different behaviour between organic and aqueous media. Finally, a direct comparison between Cu(0) and Cu(I) mediated polymerisation under exactly the same reaction conditions will be attempted indicating different active species depending on the conditions employed. Nevertheless and regardless the mechanism, the ideal polymerisation protocol that allows access to the preparation of high ordered materials will be shown. Very fast polymerisation rates (achieving quantitative conversion within 10 min), high end group fidelity even at full monomer conversion and good control over the molecular weight distribution will highlight Cu(0)-mediated polymerisation as a versatile tool for the synthesis of a wide range of materials.

Styles APA, Harvard, Vancouver, ISO, etc.

Yasmin, Aneela [Verfasser]. « Identification and molecular characterization of the Rdr1 resistance gene from roses / Aneela Yasmin ». Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover, 2011. http://d-nb.info/101111593X/34.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Mailhot, Stéphane. « Conception et mise en opération de l'installation supersonique à haute température de RDDC Valcartier ». Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/26813/26813.pdf.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Zahn, Alexander R. « Characterization and Examination of Performance Parameters of a Back-pressurized RDC ». University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1554119639742205.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Rubbers, Benjamin. « Congo Casino : Le monde social du capitalisme européen au Katanga (RDC) ». Doctoral thesis, Universite Libre de Bruxelles, 2006. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210891.

Texte intégral

Résumé :

Les Européens (Belges, Grecs et Italiens) du Katanga, dont le nombre s’est considérablement réduit au cours de la période post-coloniale, forment aujourd’hui le groupe le plus puissant de l’économie de la région. Au vu des troubles qui ont marqué l’histoire du Congo depuis l’indépendance, pourquoi sont-ils restés sur place ?Comment ont-ils développé leurs affaires dans une économie sur le déclin, en voie de marginalisation, et dans une structure politique patrimoniale de plus en plus instable ?Et quelle est leur place au sein de la société congolaise ?Telle est la triple question de départ à laquelle tente de répondre cette thèse en abordant de façon successive, au fil des chapitres, leur parcours migratoire, leur insertion dans la société congolaise, la dynamique de leur communauté, leur rôle dans les deux plus gros secteurs de la région, et leurs rapports avec les représentants de l’Etat. Elle prend appui pour ce faire sur une recherche de terrain conduite entre 2003 et 2004.

If the number of Europeans (Belgians, Greeks and Italians) living in Katanga has considerably decreased during the post-colonial period, they represent today the most powerful entrepreneurial group of the local economy. Once considered the troubles they came across since independence, why did they remain in the Congo? How did they develop their business in a declining economy, in process of marginalization, and in a patrimonial political structure, which proves to be more and more unstable? Finally, what is their place and role in Congolese society? These are the three questions this thesis tries to give an answer. Through the chapters, it studies the migration of expatriates in Africa, their relationship with Congolese society, the dynamics of their community, their role in the two most important sectors of Katanga, and the way they interact with the agents of the State. For this purpose, it rests upon a fieldwork research led between 2003 and 2004.

Doctorat en sciences sociales, Orientation anthropologie
info:eu-repo/semantics/nonPublished

Styles APA, Harvard, Vancouver, ISO, etc.

Plus de sources

Livres sur le sujet "RDRC"

Mongbet-Lamaré, Marc. Le RDPC et sa société. [Yaoundé, Cameroun] : Editions Mol, 1991.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Rangpur-Dinajpur Rural Service (Bangladesh). Microfinance Program, dir. RDRS and the poor : Microfinance as partnership : twenty years of microfinance in RDRS Bangladesh. Dhaka : RDRS Bangladesh, 2011.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

(Bangladesh), Rangpur-Dinajpur Rural Service, dir. Climate change and food security : RDRS experience. Dhaka : RDRS Bangladesh, 2010.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Neogi, M. G., et Syed Samsuzzaman. Food security in changed climate : RDRS experience. Sous la direction de Rangpur-Dinajpur Rural Service (Bangladesh). Dhaka : RDRS Bangladesh, 2011.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Crouse, Chuck. Budd car : The RDC story. Mineola, N.Y : Weekend Chief Pub., 1990.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

KASHEMA, Justin-Gr M. DROITS DE L'HOMME ENDEUILLE EN RDC. Belgique, LIEGE : EUROCEBADAC Edition Center, 2012.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Edmund, Keilty, dir. RDC : The Budd rail diesel car. San Marino, Calif : Golden West Books, 1990.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Les institutions politiques de la RDC. Paris : Harmattan, 2010.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Florence, Boloko Mularika, et Union nationale des femmes (Congo), dir. Femme et droits humains en RDC. Kinshasa : UNAF, 2002.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

L'ONU face à l'irrationnel en RDC. Paris : L'Harmattan, 2011.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Plus de sources

Chapitres de livres sur le sujet "RDRC"

Ibrahim, Karim, et Denis G. Sukhodolsky. « RDoC and Autism ». Dans Encyclopedia of Autism Spectrum Disorders, 1–2. New York, NY : Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4614-6435-8_102261-1.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Ibrahim, Karim, et Denis G. Sukhodolsky. « RDoC and Autism ». Dans Encyclopedia of Autism Spectrum Disorders, 3840–41. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-319-91280-6_102261.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Yaduvanshi, Rajveer S., et Harish Parthasarathy. « Hybrid Modes in RDRA ». Dans Rectangular Dielectric Resonator Antennas, 211–32. New Delhi : Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2500-3_10.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Halene, Tobias B., et Vilma Gabbay. « Research Domain Criteria (RDoC) ». Dans Mount Sinai Expert Guides, 9–11. Chichester, UK : John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781118654231.ch2.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Hoeck, Casper Rønn. « Tensor Free RDC Calculations ». Dans Solving a 3D Structural Puzzle, 177–212. Cham : Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96172-9_8.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Compton, Paul, et Byeong Ho Kang. « RDR and Machine Learning ». Dans Ripple-Down Rules, 121–35. First edition. | Boca Raton : CRC Press, 2021. : Chapman and Hall/CRC, 2021. http://dx.doi.org/10.1201/9781003126157-9.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Yaduvanshi, Rajveer S., et Harish Parthasarathy. « Mathematical Analysis of RDRA Amplitude Coefficients ». Dans Rectangular Dielectric Resonator Antennas, 103–34. New Delhi : Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2500-3_5.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

McCarthy, Alan, et Steve Hay. « The RDC Ten-Point Plan ». Dans Advanced Negotiation Techniques, 61–100. Berkeley, CA : Apress, 2015. http://dx.doi.org/10.1007/978-1-4842-0850-2_7.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Xu, Han, et Achim Hoffmann. « RDRCE : Combining Machine Learning and Knowledge Acquisition ». Dans Lecture Notes in Computer Science, 165–79. Berlin, Heidelberg : Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15037-1_15.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Yaduvanshi, Rajveer S., et Harish Parthasarathy. « Mathematical Analysis of Radiation Pattern of RDRA ». Dans Rectangular Dielectric Resonator Antennas, 135–46. New Delhi : Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2500-3_6.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Actes de conférences sur le sujet "RDRC"

Naples, Andrew, Ryan Battelle, John Hoke et Fred Schauer. « T63 Turbine Response to Rotating Detonation Combustor Exhaust Flow ». Dans ASME Turbo Expo 2018 : Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75534.

Texte intégral

Résumé :

This paper describes testing an axial turbine response when driven by a Rotating Detonation Combustor (RDC). A T63 (C20-250) gas turbine is modified by replacing the combustor with a RDC. The stator vanes of the T63 are heavily instrumented for measurement of flow enthalpy and pressure. The engine is run at multiple power levels with the stock combustor using JetA and hydrogen fuel. The engine is then modified to have an open loop configuration, and is run with both the RDC and the stock combustor hardware with hydrogen fuel. Temperature pattern factor, flow unsteadiness, and turbine component efficiency are measured for all setups. High speed pressure transducers show substantially higher unsteadiness generated by the RDC than the conventional combustor. RDC turbine component efficiencies are compared to the conventional combustor. Results suggest that RDC unsteadiness does not significantly impact turbine efficiency.

Styles APA, Harvard, Vancouver, ISO, etc.

Liu, Yuanyuan, Peng Zheng et Chunming Zhang. « Improvement on Dual Energy CT Reconstruction Method With Reduced Data ». Dans 2013 21st International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icone21-15462.

Texte intégral

Résumé :

Dual energy CT (DECT) has become a hot topic for its high detection precision and robust material identification ability in the field of nuclear safety and security inspection. However, the high cost of the system becomes a big limitation for its wide usage. To solve this problem, in 2009, we have proposed a dual energy CT reconstruction method with reduced data (DECT-RD) requiring much fewer data to reduce the cost of detectors. However, it is a simple idea without more analyzing in the process of solving ill-posed equations. In this paper, we tried to solve ill-posed equations with constraint condition (DECT-RDCC) and least squares (DECT-RDLS) respectively. Numerical simulations are done by using DECT-RD, DECT-RDCC and DECT-RDLS in the same situation, only 7 dual energy detector bins instead of 256 complete bin sampling in each projection. Results demonstrated that DECT-RDCC with relative error less than 1.1% is better than DECT-RD with relative error less than 1.8% while DECT-RDLS plays a more exact and steady role with relative error less than 0.6% than DECT-RDCC. Hence, DECT-RDLS is a better method used to obtain much lower system cost. We believe this work will drive DECT into wide usage.

Styles APA, Harvard, Vancouver, ISO, etc.

Bauermann, Ingo, Werner Maier et Eckehard Steinbach. « Progressive rendering from RDTC optimized streams ». Dans 2008 IEEE International Conference on Multimedia and Expo (ICME). IEEE, 2008. http://dx.doi.org/10.1109/icme.2008.4607648.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Gupta, Ravi Dutt, Sonu Agrawal et S. K. Behera. « Design of a compact reconfigurable RDRA ». Dans 2013 National Conference on Communications (NCC). IEEE, 2013. http://dx.doi.org/10.1109/ncc.2013.6487976.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Anani, Mohammad, Nazmul Kazi, Matthew Kuntz et Indika Kahanda. « RDoC Task at BioNLP-OST 2019 ». Dans Proceedings of The 5th Workshop on BioNLP Open Shared Tasks. Stroudsburg, PA, USA : Association for Computational Linguistics, 2019. http://dx.doi.org/10.18653/v1/d19-5729.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Tobias, J., D. Depperschmidt, C. Welch, R. Miller, M. Uddi, A. K. Agrawal et Ron Daniel. « OH* Chemiluminescence Imaging of the Combustion Products From a Methane-Fueled Rotating Detonation Engine ». Dans ASME Turbo Expo 2018 : Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-77255.

Texte intégral

Résumé :

Pressure gain combustion (PGC) has been conceived to convert fuel’s chemical energy into thermal energy and mechanical energy, thereby reducing the entropy production in the process. Recent research has shown that the rotating detonation combustion or combustor (RDC) can provide excellent specific thrust, specific impulse, and pressure gain within a small volume through rapid energy release by continuous detonation in the circumferential direction. The RDC as a PGC system for power generating gas turbines in combined cycle power plants could provide significant efficiency gains. However, few past studies have employed fuels that are relevant to power generation turbines, since RDC research has focused mainly on propulsion applications. In this study, we present experimental results from RDC operated on methane and oxygen-enriched air to represent reactants used in land-based power generation. The RDC is operated at a high pressure by placing a back-pressure plate downstream of the annular combustor. Past studies have focused mainly on probe measurements inside the combustor, and thus, little information is known about the nature of the products exiting the RDC. In particular, it is unknown if chemical reactions persist outside the RDC annulus, especially if methane is used as the fuel. In this study, we apply two time-resolved optical techniques to simultaneously image the RDC products at framing rate of 30 kHz: (1) direct visual imaging to identify the overall size and extent of the plume, and (2) OH* chemiluminescence imaging to detect the reaction zones if any. Results show dynamic features of the combustion products that are consistent with the probe measurements inside the RDE. Moreover, presence of OH* in the products suggests that the oblique shock wave and reactions persist downstream of the detonation zone in the RDC.

Styles APA, Harvard, Vancouver, ISO, etc.

Patil Rashmi, R., Yatin Gandhi, Vinaya Sarmalkar, Prajakta Pund et Vinit Khetani. « RDPC : Secure Cloud Storage with Deduplication Technique ». Dans 2020 Fourth International Conference on I-SMAC (IoT in Social, Mobile, Analytics and Cloud) (I-SMAC). IEEE, 2020. http://dx.doi.org/10.1109/i-smac49090.2020.9243442.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Bauermann, Ingo, et Eckehard Steinbach. « A theoretical analysis of the RDTC space ». Dans Packet Video 2007. IEEE, 2007. http://dx.doi.org/10.1109/packet.2007.4397050.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Kim, Hajin J., Scottie B. Mobley et James A. Buford, Jr. « AMCOM RDEC ladar HWIL simulation system development ». Dans AeroSense 2003, sous la direction de Robert Lee Murrer, Jr. SPIE, 2003. http://dx.doi.org/10.1117/12.503740.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Ross, Mathias, Christopher Lietz et William A. Hargus. « Synthetic Laser Diagnostics of Simulated RDRE Exhaust ». Dans AIAA Propulsion and Energy 2021 Forum. Reston, Virginia : American Institute of Aeronautics and Astronautics, 2021. http://dx.doi.org/10.2514/6.2021-3643.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Rapports d'organisations sur le sujet "RDRC"

Tackett, Gregory B. RDEC Federation Implementation of Objective Force Battlespace (OFB) Architecture. Fort Belvoir, VA : Defense Technical Information Center, septembre 2001. http://dx.doi.org/10.21236/ada397406.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Sauerborn, G. C. Modifications of the Lethality Server for Initial RDEC Federation Integration. Fort Belvoir, VA : Defense Technical Information Center, décembre 2001. http://dx.doi.org/10.21236/ada398828.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Utley, Dawn R. A Research and Analysis of AMCOM, RDEC, ED, Production Engineering Division and the Systems Engineering Effort. Fort Belvoir, VA : Defense Technical Information Center, février 2002. http://dx.doi.org/10.21236/ada401115.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Greenwald, Erik. A ModSAF RDR File Interface for the U.S. Army Research Laboratory Vulnerability Server. Fort Belvoir, VA : Defense Technical Information Center, novembre 2004. http://dx.doi.org/10.21236/ada430935.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Briere, M. Dive Lab XLDS RDC-3 and Interspiro DP2 as Candidates for an Extreme Lightweight Diving System (Unmanned). Fort Belvoir, VA : Defense Technical Information Center, janvier 2006. http://dx.doi.org/10.21236/ada445089.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Marivoet, Wim, John M. Ulimwengu, David M. Bugeme, Blandine Sanginga et Sarah Thontwa. Typologies spatiales de la sécurité alimentaire et nutritionnelle appliquées à l’agriculture et aux chaînes de valeur alimentaires dans l’Est de la RDC. Washington, DC : International Food Policy Research Institute, 2020. http://dx.doi.org/10.2499/p15738coll2.134210.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

A., Muley-Byayuwa, et Cheteu L.B. Agroforesterie et gestion durable des ressources naturelles pour l'atténuation et l'adaptation dans l'hinterland du Parc National de Kahuzi- Biega en RDC. Center for International Forestry Research (CIFOR), 2014. http://dx.doi.org/10.17528/cifor/005064.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Nous offrons des réductions sur tous les plans premium pour les auteurs dont les œuvres sont incluses dans des sélections littéraires thématiques. Contactez-nous pour obtenir un code promo unique!