Relevant bibliographies by topics / Complexes CTC

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'Complexes CTC'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Complexes CTC"

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Kancono, N., and H. B. Senin. "Gelification Effects on the Structure and Birefringence of Charge Transfer Complex Terthiophene Bisililated – TCNQ Hybrid Materials." Materials Science Forum 517 (June 2006): 257–61. http://dx.doi.org/10.4028/www.scientific.net/msf.517.257.

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Charge transfer complexes (CTC) can be readily introduced into materials by cohydrolysis-copolymerisation of bis-silylated ter-thiophenes as precursors with TMOS and TEOS in the presence of TCNQ. CTC formation is shown in the visible spectrum of the xerogel by the band at 850 nm characteristic of the TCNQ·- radical anion. Vibrational spectra have shown that strong vibration of C≡N bond at 2184, 2120 and 1595 cm-1 as peaks characteristics of CTC. The CTC bands are weak and the complex is easily destroyed by washing with acetone, which removes the TCNQ. The gelification effect of the charge transfer complexes on the hybrid materials of 2,5’’- bis(trime thoxysilyl)terthiophene/TCNQ/ TMOS showed that the peak with distance of more than 11.68 Å, formed by precursors and matrices, as a lamellar structure. The birefringence of xerogel BTS3T in presence of alkoxysilane showed that the value is near the detection limit of 0.1 – 0.4 x 10-3, which is weaker than BTS3T / THF with the birefringence value of 4.5 x 10-3.
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Chen, Hong, Mehdi Vahdati, Pu Xiao, Frédéric Dumur, and Jacques Lalevée. "Water-Soluble Visible Light Sensitive Photoinitiating System Based on Charge Transfer Complexes for the 3D Printing of Hydrogels." Polymers 13, no. 18 (September 21, 2021): 3195. http://dx.doi.org/10.3390/polym13183195.

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The development of visible-light 3D printing technology by using water-soluble initiating systems has attracted widespread attention due to their potential applications in the manufacture of hydrogels. Besides, at present, the preparation of water-soluble photoinitiators suitable for visible light irradiation (such as LEDs) still remains a challenge. Therefore, this work is devoted to developing water-soluble photoinitiators (PI)/photoinitiating systems (PIS) upon irradiation with a LED @ 405 nm. In detail, a new water-slightly-soluble chalcone derivative dye [(E)-3-(4-(dimethylamino) phenyl)-1-(4-(2-(2-(2-methoxyethoxy) ethoxy) ethoxy) phenyl) prop-2-en-1-one] was synthesized here and used as a PI with a water-soluble coinitiator, i.e., triethanolamine (TEA) which was also used as an electron donor. When combined together, a charge transfer complex (CTC) formed immediately which exhibited excellent initiating ability for the free radical photopolymerization of poly(ethyleneglycol)diacrylate (PEG-DA). In light of the powerful CTC effect, the [dye-TEA] CTC could not only exhibit enhanced water solubility and mechanical properties but could also be effectively applied for 3D printing. This CTC system is environmentally friendly and cost-saving which demonstrates a great potential to prepare hydrogels via photopolymerization.
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Loughrey, Jonathan J., Colin A. Kilner, Michaele J. Hardie, and Malcolm A. Halcrow. "Six new crystalline clathrates of cyclotricatechylene (CTC) including two donor–acceptor complexes." Supramolecular Chemistry 24, no. 1 (October 7, 2011): 2–13. http://dx.doi.org/10.1080/10610278.2011.611246.

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Crémoux, T., I. Batonneau-Gener, A. Moissette, J. L. Paillaud, M. Hureau, E. Ligner, C. Morais, S. Laforge, C. Marichal, and H. Nouali. "Influence of framework Si/Al ratio and topology on electron transfers in zeolites." Physical Chemistry Chemical Physics 21, no. 27 (2019): 14892–903. http://dx.doi.org/10.1039/c9cp01166h.

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From experimental results on H-ZSM-5 and H-*BEA zeolites, it is shown that the stability of radical cations and of charge transfer complexes (CTC) is highly dependent on the distance between Brønsted sites and strong Lewis sites or Brønsted Strong Lewis Pairs (BSLPs).
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Shen, Dong, Yan Wu, Ming-Fai Lo, and Chun-Sing Lee. "Charge transport properties of co-evaporated organic–inorganic thin film charge transfer complexes: effects of intermolecular interactions." Journal of Materials Chemistry C 8, no. 47 (2020): 16725–29. http://dx.doi.org/10.1039/d0tc04278a.

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Charge transport properties of the organic–inorganic MoO3 : 6T CTC thin film can be dramatically tuned via rubbing. The effects of intermolecular interactions on these changes are studied in detail.
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Demirhan, Hulya, Mustafa Arslan, Mustafa Zengin, and Mustafa Kucukislamoglu. "Investigation of Charge Transfer Complexes Formed between Mirtazapine and Someπ-Acceptors." Journal of Spectroscopy 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/875953.

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Charge transfer complexes (CTC) of mirtazapine with tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ), and tetracyanoquinodimethane (TCNQ) have been studied spectrophotometrically in dichloromethane at room temperature. The stoichiometries of the complexes were found to be 1 : 1 ratio by the Job Method between mirtazapine and the acceptors. The equilibrium constants and thermodynamic parameters of the complexes were determined by the Benesi-Hildebrand and Van't Hoff equations. Mirtazapine in pure and dosage form was applied in this study. The results indicate that the formation constants for the complexes depend on the nature of electron acceptors and donor. And also the spectral studies of the complexes were determined by FT-IR and NMR spectroscopy.
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LEVAVASSEUR, Françoise, Jocelyne LIÉTARD, Kohei OGAWA, Nathalie THÉRET, Peter D. BURBELO, Yoshihiko YAMADA, André GUILLOUZO, and Bruno CLÉMENT. "Expression of laminin γ 1 cultured hepatocytes involves repeated CTC and GC elements in the LAMC1 promoter." Biochemical Journal 313, no. 3 (February 1, 1996): 745–52. http://dx.doi.org/10.1042/bj3130745.

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Laminin γ1 chain is present in all basement membranes and is expressed at high levels in various diseases, such as hepatic fibrosis. We have identified cis- and trans-acting elements involved in the regulation of this gene in normal rat liver, as well as in hepatocyte primary cultures and hepatoma cell lines. Northern-blot analyses showed that laminin γ1 mRNA was barely detectable in freshly isolated hepatocytes and expressed at high levels in hepatocyte primary cultures, as early as 4 h after liver dissociation. Actinomycin D and cycloheximide treatment in vivo and in vitro indicated that laminin γ1 overexpression in cultured hepatocytes was under the control of transcriptional mechanisms. Transfection of deletion mutants of the 5´ flanking region of murine LAMC1 gene in hepatoma cells that constitutively express laminin γ1 indicated that regulatory elements were located between -594 bp and -94 bp. This segment included GC- and CTC-containing motifs. Gel-shift analyses showed that two complexes were resolved with different affinity for the CTC sequence depending on the location of the GC box. The pattern of complex formation with nuclear factors from freshly isolated and cultured hepatocytes was different from that obtained with total liver and similar to that with hepatoma cells. Southwestern analysis indicated that several polypeptides bound the CTC-rich sequence. Affinity chromatography demonstrated that a Mr 60000 polypeptide was a major protein binding to the CTC motif. This polypeptide is probably involved in the transcriptional activation of various proto-oncogenes and extracellular matrix genes that are expressed at high levels in both hepatoma cells and early hepatocyte cultures.
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Zapunidy, Sergey A., Dmitry S. Martyanov, Elena M. Nechvolodova, Marina V. Tsikalova, Yuri N. Novikov, and Dmitry Yu Paraschuk. "Approaches to low-bandgap polymer solar cells: Using polymer charge-transfer complexes and fullerene metallocomplexes." Pure and Applied Chemistry 80, no. 10 (January 1, 2008): 2151–61. http://dx.doi.org/10.1351/pac200880102151.

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Polymer solar cells have shown high potential to convert solar energy into electricity in a cost-effective way. One of the basic reasons limiting the polymer solar cell efficiency is insufficient absorption of the solar radiation by the active layer that limits the photocurrent. To increase the photocurrent, one needs low-bandgap materials with strong absorption below 2 eV. In this work, we study two types of low-bandgap materials: ground-state charge-transfer complexes (CTCs) of a conjugated polymer, MEH-PPV (poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylenevinylene]), and an exohedral metallocomplex of fullerene, (η2-C60)IrH(CO)[(+)DIOP] (IrC60). We demonstrate that the CTC formed between MEH-PPV and conjugated molecules with high electron affinity, namely, 2,4,7-trinitrofluorenone (TNF) and 1,5-dinitroantraquinone (DNAQ), can have strong optical absorption extending down to the near infrared. We have observed that the photoexcited CTC can generate free charges. We also report on optical studies of IrC60 as a possible acceptor for polymer/fullerene solar cells. IrC60 strongly absorbs in the visible spectral range, in particular in the red part, and therefore has a potential for increasing the photocurrent as compared with polymer/methanofullerene solar cells. Our studies of MEH-PPV/IrC60 blended films show that long-lived charges are efficiently generated at MEH-PPV upon photoexcitation of the blend.
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Mohamdi, Messaouda, Nadjia Bensouilah, and Mohamed Abdaoui. "Investigation of charge transfer complexes formed between (S, S)-bis-N,N-sulfonyl bis-L-phenylalanine dimethylester donor with tetracyanoethylene and chloranil as π-acceptors: Experimental and DFT studies." Journal of Theoretical and Computational Chemistry 15, no. 01 (February 2016): 1650009. http://dx.doi.org/10.1142/s0219633616500097.

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Two novel charge transfer complexes CTC ([D[Formula: see text]TCNE] and [D[Formula: see text]CHL] : D [Formula: see text] (S, S)-bis-N,N-sulfonyl bis-L-phenylalanine dimethylester; TCNE [Formula: see text] Tetracyanoethylene; CHL [Formula: see text] Chloranil) were synthesized and characterized by elemental analysis: Electronic absorption, spectrophotometric titration, IR. The obtained results indicate the formation of 1:1 for both complexes. The experimental studies were complemented by quantum chemical calculations at DFT/CAM-B3LYP level of theory. Optimized geometrical structures, the electronic spectroscopy, excited-state properties and the descriptions of frontier molecular orbitals were computed and discussed by time-dependent density functional theory (TD-DFT). In addition, vibrational frequency calculations, the natural population analysis (NPA) confirms the presence of intermolecular interactions and natural bonding orbitals (NBO) calculation was carried out in order to elucidate the interactions between TCNE [Formula: see text]-acceptor and donor molecule.
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Liu, Jiamin, Jianjun Li, Juan Liang, Chengjun Jing, and Jiaxiu Guo. "Synergistic effect of citric acid and carbon dots modified g-C3N4 for enhancing photocatalytic reduction of Cr(VI)." Journal of Water Supply: Research and Technology-Aqua 70, no. 4 (April 7, 2021): 570–86. http://dx.doi.org/10.2166/aqua.2021.163.

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Abstract Carbon dot (CD)-modified graphitic carbon nitride (g-C3N4) photocatalysts were synthesized through a one-step homogeneous thermal pyrolysis. The synergetic effect of citric acid (Cit) and g-C3N4/CDs for high-performance visible light Cr(VI) photocatalytic reduction had been investigated. Cit was not only acted as a hole scavenger, but might also form surface charge transfer complexes (CTC) with g-C3N4 which delivered electrons on the Highest Occupied Molecular Orbital (HOMO) of Cit to the conduction band (CB) of g-C3N4. CDs decorated on g-C3N4 could provide channels for the preferential transfer of electrons on CTC to the CB of g-C3N4 as well as improved separation of the charge carriers. Owing to these synergistic effects, g-C3N4/CDs displayed much higher photocatalytic performance for the reduction of Cr(VI), which was 1.89 times higher than g-C3N4. Moreover, the synergetic photocatalytic reduction mechanisms of aqueous Cr(VI) were proposed to elucidate the active species formation and photogenerated electron transfer. The results suggested that the in situ generated hydrogen peroxide (H2O2) dominated the reduction of Cr(VI). The addition of Cit could trigger the in situ generation of H2O2 and the decorated CDs further enhanced the reaction. This work demonstrated the role of widely existed Cit on the photocatalytic reduction of Cr(VI) in natural aquatic environment.
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Dissertations / Theses on the topic "Complexes CTC"

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Lecroq, William. "Etude de la formation de radicaux phosphorés et leurs applications en synthèse organique." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC265.

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Les travaux présentés dans ce manuscrit de thèse traitent de l’étude et de l’utilisation des radicaux phosphorés en synthèse organique.Le développement d’une méthode de synthèse des dérivés arylphosphonates photo induite associant simplement les sels de diaryliodonium en présence de phosphite dans l’acétonitrile a été discuté. Des études mécanistiques nous ont permis de proposer un mecanisme de cette méthode photo induite, passant par un complexe à transfert de charge.La réactivité des radicaux phosphoranyle a été utilisée pour l’étude de la désoxygénation des amines N-oxyde, utilisant un organocatalyseur phosphoré capable d’être réduit par le phénylsilane. Des études théoriques ont permis de montrer que l’espèce photo active est la pyridine N-oxyde, évolue pour générer un intermédiaire oxaziridine. L’utilisation du phénylsilane pour la réduction des amines tertiaires N-oxyde à température ambiante et sans irradiation lumineuse a été envisagée, nous permettant de développer une méthode de désoxygénation sélective de dérivés hétérocycles-amines tertiaires N,N-dioxyde
This manuscript explores the reactivity of phosphorous radicals in organic chemistry.The development of a photo induced method for the synthesis of arylphosphonate derivatives by simply combining diaryliodonium salts with phosphites in acetonitrile is discussed. Mechanistic studies of this photo-induced process allowed us to propose a mechanistic pathway of the reaction, where a charge transfer complex is a key intermediate in the reaction.The reactivity of the phosphoranyl radicals was used for the study of the deoxygenation of amine N-oxydes, using an organophosphorous catalyst, which can be reduced by phenylsilane. Theoretical studies showed that the photo active species is the pyridine N-oxide, rearrange to form an oxaziridine. The utilization of phenylsilane for the deoxygenation of tertiary amine N-oxide at room temperature without visible light irradiation was discussed, allowing the discovery of a selective deoxygenation method for N,N-dioxides
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Zinina-Izri, Irina Victorovna. "Copolymérisation sous irradiation UV des couples du type accepteur/donneur sans photoamorceur. Rôle du complexe à transfert de charge (CTC)." Montpellier 2, 1998. http://www.theses.fr/1998MON20076.

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Notre travail presente une etude de quelque couples du type accepteur / donneur qui englobe : - la caracterisation des systemes par plusieurs techniques d'analyse telles que la calorimetrie differentielle a balayage (dsc), la spectroscopie ir, la rmn, la spectroscopie uv en temps reel ; - de la copolymerisation photoinduite des systemes du type accepteur / donneur sans photoamorceur par la photocalorimetrie a compensation de puissance (dpc), la spectroscopie ir en temps reel et la rpe qui permettent de suivre le processus ; - la caracterisation du materiau obtenu complete le travail.
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Coimbra, Daniel Fernando. "Natureza da ligação Ru-NO em novos nitrosilo complexos de rutênio com ligantes quelantes CCC e CNC contendo carbenos." reponame:Repositório Institucional da UFSC, 2015. https://repositorio.ufsc.br/xmlui/handle/123456789/136460.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.
Made available in DSpace on 2015-11-17T03:05:39Z (GMT). No. of bitstreams: 1 335949.pdf: 3299080 bytes, checksum: fc7c42f7c1c0103a1f2daa1e2f7d6199 (MD5) Previous issue date: 2015
Compostos capazes de liberar ou sequestrar óxido nítrico são promissores agentes terapêuticos como antimicrobianos, reguladores da pressão sanguínea, no combate ao câncer, dentre outros. Neste trabalho foram investigados novos nitrosilo complexos de rutênio, potencialmente liberadores de óxido nítrico, contendo ligantes pinça quelantes tridentados em que dois sítios coordenantes são carbenos N heterociclos ligados por uma ponte fenila ou piridil que também coordena-se ao centro metálico. Derivados destes complexos são obtidos pela substituição de grupos alquila no átomo de nitrogênio dos grupos imidazolilideno. A estrutura geométrica e eletrônica destes complexos organometálicos e de seus produtos de redução monoeletrônica foram investigadas por métodos computacionais empregando-se a Teoria do Funcional da Densidade (DFT). A natureza da ligação química Ru NO foi estudada utilizando-se as técnicas de Análise de Decomposição de Energia de Su-Li (Su-Li EDA) e Orbitais Naturais de Ligação (NBO). Neste trabalho também foi avaliada uma metodologia para a predição de potenciais de redução dos nitrosilo complexos de rutênio estudados.

Abstract : Compounds capable of releasing or scavenging nitric oxide are promising therapeutic agents as antimicrobials, blood pressure regulators, in cancer treatment and many others. In this work were investigated new ruthenium nitrosyl complexes, potentially capable of releasing nitric oxide, containing chelating tridentade pincer ligands in which two coordinating sites are N-heterocyclic carbenes united by a bridging coordinating phenyl or pyridyl unit. Derivatives of these complexes are obtained by substitution of alkyl groups at the imidazolylidene nitrogen. The geometric and electronic structure of these organometallic complexes and their one-electron reduction products were investigated by computational methods employing Density Functional Theory. The nature of the Ru NO chemical bond was investigated using the Energy Decomposition Analysis of Su-Li and Natural Bond Orbitals. In this work it was also evaluated a methodology for the prediction of reduction potentials of the ruthenium nitrosyl complexes under investigation.
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Benbahouche, Nour el Houda. "Investigating the role of extended CBC complexes in RNA metabolism." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS002.

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Le CBC intervient dans de nombreuses étapes du métabolisme des ARN, telle que l’épissage, la maturation de l’extrémité 3’, la dégradation, l’export et la traduction. Ainsi, le CBC constitue un complexe majeur qui peut orchestrer les différentes étapes de maturation des ARN. Récemment, nous avons identifié le complexe CBCAP, composé de CBC, ARS2 et PHAX. Nous avons montré que la protéine ARS2 stimule la formation des extrémités 3’ de plusieurs familles d’ARN dont les snARN. De plus, ARS2 stimule le recrutement de PHAX sur le CBC. Ainsi, nous proposons un modèle où CBC-ARS2 stimule la formation de l’extrémité 3’ des pré-snARN et recrute PHAX pour favoriser leur export. Une autre étude a identifié un autre complexe le CBCN, constitué de CBC, Ars2, et de ZC3H18-NEXT au lieu de PHAX. CBCN recrute l’exosome et stimule la dégradation de certains ARN, comme les PROMPTS et les transcrits «read-through » des snARN et des ARNm d’histone. Ainsi, PHAX et ZC3H18 destinent leur ARN cibles vers l’export ou la dégradation. Il a été montré que PHAX reconnait et lie spécialement les ARN de petite taille. D’une manière remarquable, nos données de CLIP-Seq et de RIP suivie par des analyses avec des puces « All genes » montrent que PHAX lie aussi d’autres familles d’ARN. En effet, PHAX lie les ARNm ainsi que des ARN non-codant avec une légère préférence pour les snARN (en comparaison avec ZC3H18). Afin de mieux comprendre le rôle de PHAX et ZC3H18, j’ai tout d’abord démontré si les deux protéines se lient simultanément au CBC. Pour ce faire, J’ai réalisé des tests de compétitions entre PHAX et ZC3H18, in vivo, et j’ai montré que la surexpression de ZC3H18 déplace PHAX du CBC et vice versa. Puis en utilisant la technique de « Tethering Assays » j’ai pu montrer que PHAX et ZC3H18 ont des effets opposés sur la biogénèse des ARNm. De plus PHAX semble avoir un effet positif sur la maturation des ARNm et ce, en empêchant ZC3H18 et l’exosome d’être recruter. Nous avons aussi montré que la déplétion de PHAX et ZC3H18 a des conséquences fonctionnelles sur le taux des formes matures des snARN. Dans le but de caractériser la protéine ZC3H18, j’ai réalisé un crible double-hybride et j’ai montré que ZC3H18 interagit avec plusieurs facteurs d’épissage. J’ai aussi identifié les domaines de ZC3H18 impliqués dans ses différentes interactions. D’une manière intéressante, l’interaction de ZC3H18 avec certains facteurs d’épissage peut être exclusive à son interaction avec NEXT. De plus, des expériences de protéomique réalisés sur un des facteurs d’épissage trouvé dans le crible, montrent qu’il co-purifie au sein d’un complexe qui pourrait faire le lien entre la coiffe et la machinerie d’épissage. En accord avec ces résultats, nos données de RNA-seq montrent que la déplétion de ZC3H18 engendre un défaut d’épissage pour des introns qui sont proches de la coiffe et ceci pour un nombre restreint de gènes. Ainsi, notre travail décode davantage le rôle de la coiffe dans les différentes étapes de maturation des ARN et suggère un modèle où la séquence des transcrits naissant stimule la formation d’un complexe spécifique à cet ARN parmi plusieurs autres
The cap binding complex (CBC) plays a key role in a number of gene expression pathways and has been proposed to participate in the discrimination of RNA families. It also enhances many RNA processing steps, including transcription, splicing, 3’end formation, degradation, export and translation.Recently, we identified the CBCAP complex, composed of CBC, Ars2 and PHAX. We showed that Ars2 stimulates snRNA 3'-end processing as well as PHAX binding to the CBC, hence coupling snRNA maturation with their export. Other studies showed that the CBC and ARS2 can form another complex that contains ZC3H18-NEXT instead of PHAX. This complex, named CBCN, is a cofactor of the RNA exosome and is involved in the degradation of cryptic RNAs such as PROMPTs and read-through transcripts at histone and snRNA genes. Thus, PHAX and ZC3H18 target specific families of capped RNA toward either export or degradation. Previous studies proposed that PHAX binds specifically to small RNAs and discriminates them over other RNA species. Surprisingly, our CLIP-Seq and RIP-microarrays data showed that in contrast to expectations, PHAX was not specific for snRNAs. It also binds mRNAs as well as other non-coding RNAs and has a weak preference for snRNAs comparing to ZC3H18. To better understand the role of PHAX and ZC3H18, Ifirst determined whether PHAX and ZC3H18 can bind simultaneously to the CBC. Competitive LUMIER IPs indicated that binding of these proteins is mutually exclusive. I then used tethering assays and could show that PHAX and ZC3H18 have opposite effect on mRNA biogenesis. These data go against a model where binding of PHAX or ZC3H18 discriminate RNA families, and instead suggest promiscuous binding for these proteins. In addition, PHAX may exert a positive effect on mRNA processing by preventing binding of ZC3H18 and recruitment of the RNA exosome. Last but not least, our RT-QPCR data show that PHAX and ZC3H18 depletions have functional consequences on the level of mature snRNA, and this is due to a competition between both proteins which occur on those snRNA read-through transcripts.To further explore the role of ZC3H18, I performed a two-hybrid screen and identified several splicing factors. I could validate these interactions, identify the domains involved and show that binding of some of these factors is exclusive with that of NEXT. Importantly, proteomic experiments with one of these factors identified a complex that makes the link between the cap and the splicing machinery. In agreement, RNA-Seq analysis of ZC3H18 knock-down cells showed alterations in splicing of cap-proximal introns, for a small set of genes.Altogether, this work reveals how the multiple roles of the RNA cap are achieved at the biochemical level, and suggests that the nascent RNA sequence triggers formation of one among several mutually exclusive complexes
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Bances, Ricardo M., and Norberto J. Chau. "CMC Complejos de cadenas de R-módulos." Pontificia Universidad Católica del Perú, 2012. http://repositorio.pucp.edu.pe/index/handle/123456789/95810.

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Tensmeyer, Nicole C. "The Role of the Chaperone CCT in Assembling Cell Signaling Complexes." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/9192.

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In order to function, proteins must be folded into their native shape. While this can sometimes occur spontaneously, the process can be hindered by thermodynamic barriers, trapped intermediates, and aggregation prone hydrophobic interactions. Molecular chaperones are proteins that help client proteins or substrates overcome these barriers so that they can be folded properly. One such chaperone is the chaperonin CCT, a large MDa protein made up of 16 paralogous subunits that form a double ring structure. CCT encapsulates its substrates in a central cavity, where they are sequestered and folded, using ATP binding and hydrolysis to drive conformational changes in the CCT-substrate complex. CCT mediates the folding of many substrates involved in a variety of cellular process, including the cytoskeletal proteins actin and tubulin, and the G protein subunit Gabg, which signals downstream of GPCRs in a variety of cellular processes. We showed that CCT is responsible for folding the b-propeller containing proteins, mLST8 and Raptor, which are subunits of the mTOR complexes. The mTOR complexes (mTORC1 and mTORC2) are master regulators of cell growth and survival by controlling processes such as protein synthesis, energy metabolism, cell survival pathways and autophagy. CCT folds mLST8 and Raptor and help them assemble into the mTOR complexes. As a result, CCT is required for functional mTOR signaling. Furthermore, we solved a 4.0 Ǻ resolution structure of mLST8 bound to CCT. Surprisingly, mLST8 is found in the center of the folding cavity, in between the rings, despite previous evidence suggesting that substrates bind only in the apical domains. Given its role in folding and assembling the mTOR complexes, G proteins, and many other proteins involved in cell survival pathways, CCT has been implicated in cancer. CCT upregulation often correlates with a worse prognosis, likely because uncontrolled growth requires increased chaperone capacity. The peptide CT20P has been shown to have cytotoxic effects in cancer cells, likely through its binding to CCT. We characterized CT20P, showing that it binds to CCT and inhibits its substrate-folding functions in cells. We specifically showed that a GFP-CT20P fusion protein inhibited the assembly of two important signaling complexes Gbg and mTORC1. These results show that CT20P is a useful inhibitor for the study of CCT function.
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Aoba, Takuma. "Structural Analysis of Cell Signaling Complexes." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/6583.

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Bardet-Biedl syndrome (BBS) is a rare genetic disease that causes retinal degradation, obesity, kidney dysfunction, polydactyly, and other cilium-related disorders. To date, more than 20 BBS genes, whose mutants cause BBS phenotypes, have been identified, and eight of those (BBS1-2, 4-5, 7-9, and 18) are known to form the BBSome complex. Recent studies have revealed that the BBSome is closely involved in the trafficking of signaling proteins in the primary cilium. Mutations in BBS genes are highly pathogenic because trafficking in the primary cilium is not fully functional when BBS mutations impair assembly of the BBSome. However, the functional links between onset of BBS and BBSome assembly are not well understood. To address this gap in knowledge, we examined the structure of a BBSome assembly intermediate, the BBSome core complex (BBS2, 7, and 9). We employed a combination of chemical crosslinking coupled with mass spectrometry (XL-MS) and electron microscopy (EM) to determine the structure. We applied this structural information to BBS mutations in the core complex to understand how these mutations might cause the disease. These results provide the first structural model of the BBSome core complex and give insight into the molecular basis of Bardet-Biedl syndrome. We have also investigated the mechanism of assembly of the two mTOR kinase complexes (mTORC1 and 2). mTOR is a master regulator of cell metabolism, growth and proliferation. As such, mTOR is a high-value drug target. We investigated the mechanism of assembly of these mTOR complexes and found that the cytosolic chaperonin CCT contributes to mTOR signaling by assisting in the folding of mLST8 and Raptor, components of mTORC1 and mTORC2. To understand the function of CCT in mTOR complex assembly at the molecular level, we have isolated the mLST8-CCT complex and performed a structural analysis using chemical cross-linking couple with mass spectrometry (XL-MS) and cryogenic EM. We found that mLST8 binds CCT deep in its folding cavity, making specific contacts with the CCTα and γ subunits and forming a near-native β-propeller conformation. This information can be used to develop new therapeutics that regulate mTOR activity by controlling mTOR complex assembly.
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Liu, Lei [Verfasser], and Dieter [Akademischer Betreuer] Heermann. "Multiscale Modelling of CTCF and its Complexes / Lei Liu ; Betreuer: Dieter Heermann." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://d-nb.info/1180394976/34.

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Thiemann, Stefan [Verfasser]. "Functional characterization of ClC-K/barttin complexes of different stoichiometries / Stefan Thiemann." Hannover : Gottfried Wilhelm Leibniz Universität, 2021. http://d-nb.info/1238222625/34.

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Schulze, Wiebke Manuela [Verfasser], and Stephen [Akademischer Betreuer] Cusack. "Mutually Exclusive CBC and CBC-ARS2 Containing Complexes Coordinate the Fate of RNA Polymerase II Transcripts / Wiebke Manuela Schulze ; Betreuer: Stephen Cusack." Heidelberg : Universitätsbibliothek Heidelberg, 2017. http://d-nb.info/1177251558/34.

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Books on the topic "Complexes CTC"

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Vanneste, Jean-François. La CFTC sans complexes: 30 années de syndicalisme de construction sociale : 1975-2005. Le Plessis-Robinson: Frédéric Aimard éditeur/SPFC, 2014.

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Myeyeryakova, Vyera, and Viktor Starodubov. CNC Metal-cutting Machines. ru: INFRA-M Academic Publishing LLC., 2015. http://dx.doi.org/10.12737/5721.

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In the manual various ways of control of metal-cutting machines are considered, the principles of construction and possibility of systems of ChPU are given. Features of configurations and designs of machines with ChPU are presented, ways of expansion of their technological capabilities, increases of productivity, accuracy and reliability. The tasks solved during the training of managing directors of programs, feature of technological preparation, mathematical calculations and control unitary enterprise are considered. Programming bases for machines about ChPU, methods of adjusting are given, features of technological service and repair. It is intended for students of the higher educational institutions which are trained in the directions 151900 "Design-technology ensuring machine-building productions" (qualification — the bachelor) and 151000 "Technological machines and the equipment" (qualification — the bachelor) on a preparation profile "Metal-cutting machines and complexes", and also for preparation in lyceums, technical schools, on special courses of CNC operators, members of repair crews, technologists-programmers.
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Lusty, James R. CRC Handbook of Nucleobase Complexes. Taylor & Francis Group, 2018.

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Lusty, James R. CRC Handbook of Nucleobase Complexes. Taylor & Francis Group, 2018.

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Lusty, James R. CRC Handbook of Nucleobase Complexes. Taylor & Francis Group, 2018.

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Lusty, James R. CRC Handbook of Nucleobase Complexes. Taylor & Francis Group, 2018.

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CRC Handbook of Nucleobase Complexes. Taylor & Francis Group, 2017.

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Lusty, James R. CRC Handbook of Nucleobase Complexes. Edited by James R. Lusty. CRC Press, 2018. http://dx.doi.org/10.1201/9781315150819.

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Lusty, James R. Revival: Crc Handbook of Nucleobase Complexes. Taylor & Francis Group, 2019.

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Lusty, James R. CRC Handbook of Nucleobase Complexes: Transition Metal Complexes of Naturally Occurring Nucleobases and Their Derivative. CRC Press, 1990.

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Book chapters on the topic "Complexes CTC"

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Volkov, S. V., and I. V. Matyashchuk. "Novel Low- and Medium- Temperature Sulfur- Alkali Metal Batteries Based on Charge Transfer Complexes(CTC)." In New Promising Electrochemical Systems for Rechargeable Batteries, 503. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1643-2_38.

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Portugali, Juval. "Complexity Theories of Cities (CTC)." In Understanding Complex Systems, 53–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19451-1_4.

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Portugali, Juval. "CTC, Social Theory Oriented Urban Theory, and Planning." In Understanding Complex Systems, 285–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19451-1_15.

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Srinivasan, John David, and Mohammed A. Helwani. "Complete Blood Count (CBC)." In Data Interpretation in Anesthesia, 139–41. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-55862-2_25.

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Hodges, Bernard. "Complex profile with a spline." In CNC Part Programming Workbook, 50–51. London: Macmillan Education UK, 1994. http://dx.doi.org/10.1007/978-1-349-12683-5_18.

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Tremblin, Christophe, Pierre Lesoille, and Omar Rezzoug. "Use of Formal Proof for CBTC (OCTYS)." In Formal Methods Applied to Industrial Complex Systems, 37–69. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781119004707.ch3.

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Brichet, F., and A. Simonian. "Measurement-Based CAC for Video Applications Using SBR Service." In Performance and Management of Complex Communication Networks, 294–313. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-0-387-35360-9_16.

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Smith, Graham T. "Current Developments in Flexible Manufacturing Cells and Systems, Leading to Complete Computer Integrated Manufacture." In CNC Machining Technology, 317–92. London: Springer London, 1993. http://dx.doi.org/10.1007/978-1-4471-1748-3_6.

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Smith, Graham T. "Current Developments in Flexible Manufacturing Cells and Systems, Leading to Complete Computer Integrated Manufacture." In CNC Machining Technology, 65–140. London: Springer London, 1993. http://dx.doi.org/10.1007/978-1-4471-2051-3_2.

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Elkeran, A., and M. A. El-baz. "CNC Manufacturing of Complex Surfaces Based on Solid Modeling." In Multiple Approaches to Intelligent Systems, 841–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-540-48765-4_89.

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Conference papers on the topic "Complexes CTC"

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Miller, P., U. Sharma, K. Medina-Saenz, T. Yeasky, M. Picon-Ruiz, C. Morata-Tarifa, T. Seagroves, J. Slingerland, M. Lippman, and D. El-Ashry. "Abstract P2-01-10: Circulating CAF/CTC complexes and breast cancer metastasis." In Abstracts: 2017 San Antonio Breast Cancer Symposium; December 5-9, 2017; San Antonio, Texas. American Association for Cancer Research, 2018. http://dx.doi.org/10.1158/1538-7445.sabcs17-p2-01-10.

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Diemunsch, Kenneth. "CBTC Field Test and Commissioning." In 2015 Joint Rail Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/jrc2015-5614.

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Communications-Based Train Control (CBTC) technology is the most advanced train control system for urban railway infrastructures. It is very different from conventional relay based signaling systems and more complex than most cab signaling systems. CBTC functions are numerous, highly complex with customized details for each project. They cannot be tested for all possible conditions at all locations. Knowledge of the CTBC system and experience with train control commissioning are keys to performing enough tests to detect most issues but permit the start of revenue service as early as possible. The testing strategy proposed by the CBTC supplier is the result of years of experience with the goal of minimizing expensive field tests while demonstrating that the system will work properly in revenue service. Despite the numerous tests performed before revenue service, it is inevitable that operating challenges will be faced during the first months of CBTC system operation. The recent Institute of Electrical and Electronics Engineers (IEEE) Std 1474.4-2011 Recommended Practice for Functional Testing of a Communications-Based Train Control System [1] provides a good description how and where CBTC functions should be tested. However, it does not describe the sequence of tests in the context of a project where CBTC is deployed on a transit property. This paper presents the sequence of field tests required to commission a CBTC system and provides insight based on experience with several CBTC projects in the last decade.
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Jywe, Wen-Yuh, and Chien-Hong Liu. "A Study of Geometric Error Measurement of CNC Machine Tools Using the Improved Planar Encoder System." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/dac-48739.

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This paper presents a useful measuring method for rapidly verifying geometric errors using a double-readheads planar encoder system (DRPES). With the calculated model and the various specified test paths, the proposed measuring method provide the rapid performance, simplicity of setup, low cost and pre-process verification of CNC machine tools. Complete setups and procedures for geometric error verification are clearly presented. Experimental results showed that more information on analyzing the types of errors can be obtained and the performance of verification can be further improved. The proposed system completes the geometric verification of a CNC machine tool within one hour.
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Gray, Kathleen Arnold, Mark Guzdial, and Spencer Rugaber. "Extending CRC cards into a complete design process." In the 8th annual conference. New York, New York, USA: ACM Press, 2003. http://dx.doi.org/10.1145/961511.961582.

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Luo, YaBo, and Xin Lin. "CNC Grid Features Modeling Employing Complex Constraints Characteristics." In 2009 International Conference on Computational Intelligence and Software Engineering. IEEE, 2009. http://dx.doi.org/10.1109/cise.2009.5362567.

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Zhao, Junchan, Qin Li, Jun-An Lu, and Zhong-Ping Jiang. "Robust synchronization of weighted complex dynamical networks." In 2009 Joint 48th IEEE Conference on Decision and Control (CDC) and 28th Chinese Control Conference (CCC). IEEE, 2009. http://dx.doi.org/10.1109/cdc.2009.5400678.

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Guo, Jing, Tao Yang, Qin Li, Jian Yang, and Yifan Huang. "A hybrid 3D segmentation approach for vasculatures of CTA images." In 2010 IEEE/ICME International Conference on Complex Medical Engineering - CME 2010. IEEE, 2010. http://dx.doi.org/10.1109/iccme.2010.5558826.

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Chowdhury, Archana, Pratyusha Rakshit, Amit Konar, and Atulya K. Nagar. "A Ranking Based Technique to Predict Protein Complexes." In 2019 IEEE Congress on Evolutionary Computation (CEC). IEEE, 2019. http://dx.doi.org/10.1109/cec.2019.8790293.

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van der Schaft, A. J., and R. V. Polyuga. "Structure-preserving model reduction of complex physical systems." In 2009 Joint 48th IEEE Conference on Decision and Control (CDC) and 28th Chinese Control Conference (CCC). IEEE, 2009. http://dx.doi.org/10.1109/cdc.2009.5399669.

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Liu, Zhi-Wei, Zhi-Hong Guan, Yan-Wu Wang, and Rui-Quan Liao. "Synchronization of complex dynamical networks via distributed impulsive control." In 2009 Joint 48th IEEE Conference on Decision and Control (CDC) and 28th Chinese Control Conference (CCC). IEEE, 2009. http://dx.doi.org/10.1109/cdc.2009.5399670.

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Reports on the topic "Complexes CTC"

1

ELLEFSON, M. D. Central Waste Complex (CWC) Waste Analysis Plan. Office of Scientific and Technical Information (OSTI), December 1999. http://dx.doi.org/10.2172/798803.

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WHITLOCK, R. W. Central Waste Complex (CWC) Safety Equipment List. Office of Scientific and Technical Information (OSTI), January 2000. http://dx.doi.org/10.2172/801174.

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ELLEFSON, M. D. Central Waste Complex (CWC) Waste Analysis Plan. Office of Scientific and Technical Information (OSTI), January 2000. http://dx.doi.org/10.2172/801182.

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WHITLOCK, R. W. Central Waste Complex (CWC) essential/support drawing list. Office of Scientific and Technical Information (OSTI), February 1999. http://dx.doi.org/10.2172/781538.

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Leininger, Matt. Level-2 Milestone 5213. CTS-1 Contract Award Completed. Office of Scientific and Technical Information (OSTI), September 2015. http://dx.doi.org/10.2172/1237561.

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Leininger, M. Level 2 Milestone 4795: CTS-1 Market Survey Completed. Office of Scientific and Technical Information (OSTI), June 2014. http://dx.doi.org/10.2172/1162262.

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Lines, Lisa M., Florence K. L. Tangka, Sonja Hoover, and Sujha Subramanian. People with Colorectal Cancer in SEER-Medicare: Part D Uptake, Costs, and Outcomes. RTI Press, May 2020. http://dx.doi.org/10.3768/rtipress.2020.rr.0037.2005.

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Limited information exists about enrollment in Part D prescription coverage by Medicare beneficiaries with cancer. Part D coverage may increase access to medicines. This study evaluated patterns of Part D uptake and costs and assessed the effects of coverage on hospitalizations and emergency department (ED) use among people with colorectal cancer (CRC). We analyzed Surveillance, Epidemiology, and End Results (SEER)–Medicare linked data on fee-for-service (FFS) Medicare beneficiaries with at least 36 months of follow-up who were diagnosed with CRC at any point from January 2007 through December 2010, and a matched cohort of beneficiaries without cancer. Dual (Medicare/Medicaid) enrollees were excluded because they are automatically enrolled in Part D. Among beneficiaries with CRC (n=12,774), 39 percent had complete Part D coverage, defined as coverage in the diagnosis year and 2 subsequent years; the rate was 38 percent in the matched comparison cohort (P=.119). Among those with complete Part D coverage, there was no significant difference in annual prescription drug costs between people with CRC ($3,157, 95% confidence interval [CI]: $3,098–$3,216) and without ($3,113, 95% CI: $3,054–$3,172). Among people with CRC, odds of ED use ranged from unchanged to marginally higher for those with no or partial Part D coverage, (adjusted odds ratio: 1.09, 95% CI: 1.00–1.18), compared with those with complete Part D coverage. Lack of continuous Part D coverage was associated with more ED use among Medicare FFS beneficiaries with CRC in 2007–2013. Among people with Part D coverage, prescription drug costs varied little between those with CRC and matched beneficiaries without cancer.
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CARTER, C. A. Solid Waste Burial Ground Central Waste Complex (CWC) Hazards Assessment. Office of Scientific and Technical Information (OSTI), July 2002. http://dx.doi.org/10.2172/807994.

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Busching, K. R. Central Waste Complex (CWC) essential/support drawing list. Revision 3. Office of Scientific and Technical Information (OSTI), October 1994. http://dx.doi.org/10.2172/10189824.

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Chan, S. H., and P. J. Janke. Complex Equilibrium Calculations of Nonideal Multiphase Systems (CEC- NMS) and Applications to Liquid Metal Fuel Combustion. Fort Belvoir, VA: Defense Technical Information Center, March 1989. http://dx.doi.org/10.21236/ada209990.

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