Bibliografías temáticas / Position 2

Literatura académica sobre el tema "Position 2"

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Publicado: 25 de mayo de 2024

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Artículos de revistas sobre el tema "Position 2"

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Balamurugan, S., A. Thiruvalluvar, A. Manimekalai, K. Selvaraju y T. Maruthavanan. "1-Acetyl-3-ethyl-r-2,c-6-di-2-furylpiperidin-4-one". Acta Crystallographica Section E Structure Reports Online 62, n.º 5 (26 de abril de 2006): o2005—o2006. http://dx.doi.org/10.1107/s1600536806013407.

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In the title molecule, C17H19NO, the piperidine ring adopts a chair conformation. The acetyl group in the 1-position and ethyl group in the 3-position each have an equatorial orientation. The furyl rings at positions 2 and 6 have axial orientations.
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2

Philipp, Gunnar, Sigrid Wocadlo, Werner Massa, Kurt Dehnicke, Dieter Fenske, Cäcilia Maichle-Mössmer, Elke Niquet y Joachim Strähle. "Die Kristallstrukturen von [MoCl2(NO)2(OPEt3)]2, [MoCl3(NO)(OPPh3)2•MoCl4(OPPh3)2], [MoCl2(NO)(PPh3)2(CH3CN)] und [MoCl4(NPPh3)(OPPh3)] / The Crystal Structures of [MoCl2(NO)2(OPEt3)]2, [MoCl3(NO)(OPPh3)2 • MoCl4(OPPh3)2], [MoCl2(NO)(PPh3)2(CH3CN)], and [MoCl4(NPPh3)(OPPh3)]". Zeitschrift für Naturforschung B 50, n.º 1 (1 de enero de 1995): 1–10. http://dx.doi.org/10.1515/znb-1995-0102.

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The title compounds have been prepared by reactions of MoCl2(NO)2 with PPh3, OPPh3, or Me3SiNPR3 (R = Et, Ph) in dichloromethane and acetonitrile suspension, respectively. All complexes were characterized by IR spectroscopy and by crystal structure determinations. [MoCl2(NO)2(OPEt3)]2: Space group C2/c, Z = 4, 2950 observed unique reflections, R = 0.029. Lattice dimensions at —70 °C: a = 2390.5(11), b = 875.5(5), c = 1399.1(6) pm, β = 113.18(2)°. The complex forms a centrosymmetric dimer with MoCl2Mo bridges, the nitrosyl groups being in a cis-arrangement. The OPEt3 ligand is coordinated in trans position to one of the nitrosyl ligands.[MoCl3(NO)(OPPh3)2 • MoCl4(OPPh3)2]: Space group P21/c, Z = 4, 10243 observed unique reflections, R = 0.060. Lattice dimensions at —60 °C: a = 1900.4(3), b = 1689.1(5), c = 2209.3(7) pm, β = 95.92(2)°. The structure consists of the two independent complexes [MoCl3(NO)(OPPh3)2] and [MoCl4(OPPh3)2]. In both complexes the OPPh3 groups are in a cis-arrangement at the octahedrally coordinated Mo atoms; in the nitrosyl complex one of the OPPh3 molecules is in trans-position to the nitrosyl ligand.[MoCl2(NO)(PPh3)2(CH3CN)]: Space group P21/n, Z = 4, 5107 observed unique reflections, R = 0.028. Lattice dimensions at 20 °C: a = 1006.5(2), b = 1527.2(2), c = 2342.3(2) pm, β = 90.97(1)°. The PPh3 molecules are in trans-positions to one another at the octahedrally coordinated Mo atom, whereas the acetonitrile molecule is in trans-position to the nitrosyl ligand.[MoCl4(NPPh3)(OPPhi)]: Space group P21, Z = 2, 3323 observed unique reflections, R = 0.057. Lattice dimensions at —70 °C: a = 985.7(8), b = 1471.2(9), c = 1215.9(11) pm, β = 100.50(3)°. The OPPh3 molecule coordinates in trans-position to the phosphorane iminato ligand at the octahedrally coordinated Mo atom.
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3

Nechiporenko, Alexander V. "The Concept of Position and Positional Thinking". Siberian Journal of Philosophy 18, n.º 2 (2020): 195–207. http://dx.doi.org/10.25205/2541-7517-2020-18-2-195-207.

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The paper elaborates on and develops the concept of “position”. Drawing on the examples from the history of science and philosophy from G. Galileo to the works of the Moscow Methodological Circle in the second half of the 60s - early 70s of the 19th century the author considers the cultural phenomenon of positional thinking. Special attention is paid to the philosophy of I.G. Fichte. An assumption is made and substantiated that Fichte’s dialectics is a model of specifically positional thinking and provides a basis for determining the objective content of the concept of “position”. The paper also describes the context of the emergence of positional schemes, their specific structure and use in the works of MMK as a normative-logical apparatus, an alternative to formal logic. It also outlines the area of topical problems associated with the concept of “position”.
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4

Bourque, S. N., J. R. Valero, M. C. Lavoie y R. C. Levesque. "Comparative Analysis of the 16S to 23S Ribosomal Intergenic Spacer Sequences of Bacillus thuringiensis Strains and Subspecies and of Closely Related Species". Applied and Environmental Microbiology 61, n.º 7 (julio de 1995): 2811. http://dx.doi.org/10.1128/aem.61.7.2811-2811b.1995.

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Volume 61, no. 4, p. 1624, column 2, lines 38-41: The sentence should read "For example, at position 21, the G nucleotide (Fig. 1) was present in all the ISR B. thuringiensis subspecies except for B. thuringiensis subsp. tenebrionis (Te4), which contained an A." Page 1624, column 2, line 45: "Position 62" should read "position 11." Page 1624, column 2, line 47: "Position 90" should read "position 39." Page 1624, column 2, line 49: "Position 83" should read "position 32." Page 1625, column 1, line 3: "Position 83" should read "position 32." Page 1626, column 1, line 1: "Positions 62, 90, and 165, and one deletion at position 83" should read "positions 11, 39, and 114, and one deletion at position 32." [This corrects the article on p. 1623 in vol. 61.].
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5

Chang, H. Chris. "Sudden position guide to collection management (ALCTS sudden position series, 2)". Journal of Electronic Resources Librarianship 34, n.º 2 (3 de abril de 2022): 163–64. http://dx.doi.org/10.1080/1941126x.2022.2064143.

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6

Feng, Xiao Mei, Li Shun Li, Zhan Dong Liu y Da Wei Zhang. "The Position Plane Distortion Study of 2-DOF Precision Position Table". Applied Mechanics and Materials 364 (agosto de 2013): 267–71. http://dx.doi.org/10.4028/www.scientific.net/amm.364.267.

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A new 2-DOF precision positioning table of high speed and accuracy, directly driven by voice coil actuator, is put forward. And a novel elastic decoupling mechanism is introduced in the table. In order to study its dynamic characteristic when the table works at high speed and high acceleration, the table FEA model is built and the FEA is carried out. Based on the FEA results, the position planes displacement on X, Y and Z axis of the 2-DOF table is simulated respectively, the simulation results can provide reference for the table dynamic structural design.
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7

D'Eon, Stephen P. "Accuracy and signal reception of a hand-held Global Positioning System (GPS) receiver". Forestry Chronicle 71, n.º 2 (1 de abril de 1995): 192–96. http://dx.doi.org/10.5558/tfc71192-2.

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Accurate and precise reporting of forest survey locations is required to integrate forest survey data with Geographical Information Systems. The accuracies of five Global Positioning System (GPS) survey methods using a hand-held receiver were tested in a mixed forest of trembling aspen and spruce. Accuracy improved by eliminating positions obtained under poor satellite configurations and by using position averaging methods. Single fix positions, taking as little as two minutes to obtain, yielded better than 100m accuracy more than 80% of the time. Allowing the receiver to continuously collect fixes for 15 to 30 minutes and then averaging the fixes yielded a median position error of 17 m. Sixty one stands representing a diversity of cover types, canopy heights, and crown closure in the Petawawa Research Forest were tested during June and July of 1992 for canopy interference with GPS signals. A GPS position was obtained under the canopy in 74% of the stands. Launches of additional GPS satellites since the summer of 1992 have further improved the probability of obtaining accurate geographical positions under forest canopies. Key words: global positioning system, position accuracy, signal reception, canopy interference
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8

Kaatz, Brian. "Position 2: Pharmacist should assist physicians". American Journal of Health-System Pharmacy 47, n.º 4 (1 de abril de 1990): 813. http://dx.doi.org/10.1093/ajhp/47.4.813.

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9

Galobardes, B. "Indicators of socioeconomic position (part 2)". Journal of Epidemiology & Community Health 60, n.º 2 (1 de febrero de 2006): 95–101. http://dx.doi.org/10.1136/jech.2004.028092.

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10

Kelly, William N. "Position 2: Pharmacist Should not Intervene". American Journal of Health-System Pharmacy 50, n.º 1 (1 de enero de 1993): 110–11. http://dx.doi.org/10.1093/ajhp/50.1.110.

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Más fuentes

Tesis sobre el tema "Position 2"

1

FREVILLE-HERENTHALS, STEPHANIE. "Synthese enantioselective d'alcaloides monosubstitues en position 2 et disubstitues en positions 2 et 6". Paris 6, 1996. http://www.theses.fr/1996PA066557.

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La these presentee porte sur l'elaboration de nouvelles syntheses enantioselectives d'alcaloides piperidiniques monosubstitues en position 2 et disubstitues en positions 2 et 6. Le travail a pour point de depart un substrat bicyclique oxazolopiperidonique, lui-meme issu de la condensation du phenylglycinol et d'un -cetoacide dont une nouvelle methode de preparation a ete developpee. Ce bicycle possede en et de l'atome d'azote des reactivites potentielles: fonction carbonyle du lactame et fonction iminium aminal masquee. Une ouverture stereoelectronique en (cycle oxazolidinique) conduit aux lactames n-proteges. Trois voies sont alors envisagees: la premiere donne acces aux 2-alkylpiperidines apres une reaction d'extrusion d'oxygene et une elimination de la partie chirale. La deuxieme conduit aux lactames chiraux par debenzylation. Ces derniers sont des synthons-cles permettant l'acces direct aux 2-alkylpiperidines apres une reaction d'extrusion d'oxygene et aux 2,6-dialkylpiperidines trans ou cis par une suite de reactions stereoselectives effectuee en de la fonction carbonyle. Une inversion de configuration du carbone portant la fonction hydroxyle de l'un de ces derives conduit au (-)-pinidinol. C'est la premiere synthese enantioselective de ce compose. La derniere voie conduit aux oxazolopiperidines par action d'organomagnesiens sur la fonction carbonyle du lactame. L'ouverture ulterieure du cycle oxazolopiperidinique et la debenzylation conduisent stereoselectivement aux 2,6-dialkylpiperidines trans. La plupart des composes obtenus sont des produits naturels et presentent un interet biologique
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2

Ozkaya, Tugba. "Hezbollah And Its Position Towards Israel". Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/2/12611119/index.pdf.

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This thesis analyses how Hezbollah has perceived Israel since its establishment. In this study it is argued that Israel is the main enemy of and source of hatred for Hezbollah. The references of this overall statement are the ideology and political, social and military history of Hezbollah. The armed struggle of Hezbollah against Israel started with the 1982 Israeli invasion of Lebanon evolved into both a political participation with the continued armed militia in the period between 1982 to today. During this period, in addition to its armed conflict with Israel, Hezbollah came on the stage with social services for Lebanese society and political propaganda in Lebanese elections. The intersection point of these three identities is the endless encouragement of Hezbollah for a determined resistance against Israel. While on the one hand Hezbollah defines Israel to be the most dangerous threat for the world, in addition to being a prominent enemy for the Arab and Muslim community
on the other hand Israel regards Hezbollah to be the highest impact menace. Consequently, the thesis is finalized with outputs and predictions taking all historical and ideological aspects into concern.
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3

Reed, Eric Christopher. "Improvement of MPEG-2 compression by position-dependent encoding". Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38823.

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4

Khalil, Ahmed. "Synthèse et étude d'analogues nucléosidiques fluorés en position 2' ou 3'". Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20070/document.

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Dans le premier chapitre de cette thèse, nous nous sommes intéressés aux virus de l'immunodéficience humaine et des hépatites B et C ainsi qu'aux thérapies utilisées dans le traitement de ces affections. Nous avons introduit l'importance des nucléosides fluorés, et nous avons donné quelques exemples de nucléosides fluorés utilisés en chimiothérapie antivirale et antitumorale. Dans le second chapitre, nous avons présenté une synthèse rapide de 2',3'-didésoxy-3'-fluoro-beta-D-thréo-nucléosides portant les bases pyrimidiques naturelles et substituées en position N3 par un groupement nitro ou amino. Les composés obtenus ont été évaluées contre divers virus à ADN et ARN (y compris le VIH) dans des expériences de culture cellulaire. Dans le troisième chapitre, nous nous somme intéressés à la synthèse de différents 2',3'-didésoxy-2'-fluoro-3'-(N-hydroxyimino), (N-methoxyimino) and (hydroxyl-amino) nucléosides en série pyrimidine. Les composés obtenus ont été évaluées contre divers virus à ADN et ARN dans des expériences de culture cellulaire
In the first chapter, we presented the human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV), as well as the therapies used to treat these diseases. In a second part, we discussed about the importance of the incorporation of fluorine atom into nucleoside analogues, and in a third part of this chapter, we presented the recent literature sources of the synthesis and biological activity of fluorinated nucleosides. In the second chapter, we designed and synthesized a series of 2',3'-dideoxy-3'-fluoro-threo-pyrimidine nucleosides by direct and rapid methodology and evaluated them for their inhibitory effects on a number of RNA and DNA viruses in cell culture experiments. None of these nucleoside derivatives showed any antiretroviral activity nor cytotoxicity. In the third chapter of this manuscript, we synthesized a new series of 2',3'-dideoxy-2'-fluoro-3'-(N-hydroxyimino),(N-methoxyimino) and (hydroxylamino)pyrim idine nucleosides and also evaluated for their inhibitory effects on a number of RNA and DNA viruses, without finding any activity or cytotoxicity
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5

Kilic, Ergin. "Novel Position Measurement And Estimation Methods For Cnc Machine Systems". Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12608762/index.pdf.

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Precision control of translational motion is vital for many CNC machine tools as the motion of the machinery affects the dimensional tolerance of the manufactured goods. However, the direct measurement along with the accurate motion control of machine usually requires relatively expensive sensors i.e. potentiometers, linear scales, laser interferometers. Hence, this study attempts to develop reference models utilizing low-cost sensors (i.e. rotary encoders) for accurate position estimation. First, an indirect measurement performance is investigated on a Timing Belt driven carriage by a DC Motor with a backlash included Gearbox head. An advanced interpolated technique is proposed to compensate the position errors while using indirect measurement to reduce the total cost. Then, a similar study was realized with a ball screw driven system. Next, a cable drum driven measurement technique is proposed to the machines which have long travel distance like plasma cutters. A test setup is proposed and manufactured to investigate the capstan drive systems. Finally, characteristics of Optical Mouse Sensors are investigated from different point of views and a test setup is proposed and manufactured to evaluate their performances in long terms. Beside all of these parts, motion control algorithms and motion control integrated circuits are designed and manufactured to realize experimental studies in a detailed manner.
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6

Gauthier, Florian. "Synthèse et propriétés d’ARNs modifiés en position 2’ via des ponts disulfures". Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS120/document.

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Les ARNs sont impliqués dans de nombreux processus biologiques et peuvent adopter des structures secondaires différentes. Par leurs propriétés, ils constituent des outils biologiques puissants pour des applications diverses, tels les ARNs interférents (siARN) qui permettent l’extinction de l’expression des gènes par exemple. L’introduction de modifications sur des ARNs s’est avérée essentielle pour améliorer leurs propriétés et faciliter l’étude de leurs rôles biologiques et leurs applications thérapeutiques.Ce manuscrit rapporte la synthèse et les propriétés d’ARNs modifiés en position 2’ du ribose par des groupements contenant des ponts disulfures, sensibles à un environnement réducteur.Dans la première partie, la synthèse de prodrogues de siARNs partiellement modifiés par des groupements benzyldithiométhyles est décrite. Leurs stabilités thermiques et enzymatiques, ainsi que leur démasquage en milieu réducteur, sont montrés. Les résultats prometteurs d’activité inhibitrice et de pénétration cellulaire, sur une lignée cellulaire du sarcome d’Ewing, permettent d'envisager une application potentielle de ces siARNs modifiés comme outils thérapeutiques.La deuxième partie décrit une approche de co-délivrance par des siARNs couplés avec une drogue anticancéreuse, la doxorubicine, via un lien auto-immolable contenant des ponts disulfures. Les propriétés physico-chimiques des conjugués sont déterminées, et la libération du siARN et de la drogue en milieu réducteur est mise en évidence.La troisième partie présente une autre méthode de conjugaison en solution entre la position 2’ d’un ARN et des petites molécules (sucres, coumarine, biotine, acide désoxycholique, glutathion) via un pont disulfure. La synthèse des ARNs conjugués et leur devenir en milieu réducteur sont décrits.Dans la dernière partie, l’impact d’un lien avec un pont disulfure intrabrin entre les positions 2’ de deux nucléotides adjacents est étudié dans un duplex ou la partie boucle d’hairpins. L’influence du pont disulfure sur l’équilibre des conformations duplex et hairpin d’un ARN d’intérêt biologique est évaluée, en absence et en présence d’agents réducteurs. Une application en fluorescence d’une hairpin contrainte en tant que « molecular beacon » montre des utilisations potentielles de ce lien dans des outils pour étudier la conformation de structures secondaires d’ARNs ou dans des sondes pour détecter les agents réducteurs
RNAs are involved in numerous biological processes and can adopt different secondary structures. Thanks to their properties, they are powerful biological tools for diverse applications, such as small interfering RNA (siRNA) for gene silencing. Modified RNAs have proven to be essential to improve their properties, and to facilitate the study of their biological and therapeutic functions.This manuscript reports the synthesis and properties of 2’-O-modified RNAs bearing disulfide-containing groups, sensitive to reductive environment.The first part describes the synthesis of siRNAs prodrugs bearing lipophilic benzyldithiomethyl groups. The thermal stability, the serum stability and the response to glutathione treatment of modified siRNAs are thoroughly investigated. The gene silencing and the gymnotic delivery of several siRNAs are assessed, and demonstrates promising results on Ewing’s sarcoma cell line.A second part concerns the co-delivery of siRNAs and a hydrophobic anti-cancer drug (doxorubicin) using a self-immolative spacer bearing disulfide bonds. The chemico-physical properties of these conjugates are determined and the recovery of native siRNA and doxorubicin in response to reductive treatment is highlighted.A third part presents the conjugation of RNAs to small molecules (sugars, coumarin, biotin, deoxycholic acid, glutathione) using disulfide linkages. The synthesis of the RNA conjugates and their release in reducing conditions are also demonstrated.The last part reports the synthesis and the impact of an intrastrand dimethylene disulfide bridge between 2’-O-positions of two adjacent nucleotides in an RNA duplex and in the loop of RNA hairpins. Then, the influence of this linkage on the folding of a biologically relevant RNA structure is reported. Finally, an application of a constrained hairpin as a fluorescent molecular beacon highlights its potential use in tools for understanding RNA folding and in probes for the detection of reducing reagents
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7

Nashed, Salomé. "Étude fonctionnelle et évolutive du résidu situé en position 2 des protéines". Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS219.

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Le résidu situé en position 2 des protéines, suivant leur méthionine initiatrice, est un signal clé pour le recrutement co-traductionnel de diverses enzymes de modification qui impactent précocement leur destinée cellulaire (adressage, repliement, temps de demi-vie). Bien que l’importance de ce résidu soit établie pour quelques protéines, son rôle à l’échelle globale du protéome et la nature des pressions sélectives auxquelles il pourrait être soumis demeurent à ce jour inexplorés. Durant ma thèse, j’ai pour la première fois utilisé des méthodologies d’analyse globale pour réaliser une étude fonctionnelle et évolutive du résidu situé en position 2 des protéines. J’ai mis au profit de cette étude deux approches complémentaires, développées in silico chez la levure modèle Saccharomyces cerevisiae. La première approche utilisée consiste en l’étude d’enzymes de modification dont le recrutement dépend du résidu en position 2 de leurs cibles. Je me suis en particulier intéressée aux N-acétyltransférases. Celles-ci possèdent la même activité enzymatique de N-acétylation, mais ciblent des sous-ensembles distincts de protéines et leurs délétions sont associées à des phénotypes différents, ce qui pose la question du rôle spécifique de chacune dans la physiologie cellulaire. Grâce à l’analyse de données expérimentales relatives à ces enzymes, j’ai caractérisé leur sélectivité globale in vivo et j’ai formellement démontré qu’elles ont effectivement des rôles physiologiques différentiels. La seconde approche utilisée est l’étude de la distribution des acides aminés en position 2 dans le protéome et dans les groupes fonctionnels de protéines définis par la Gene Ontology. Alors que les outils actuels utilisés pour réaliser des analyses de Gene Ontology ne tiennent pas compte de la structure hiérarchique de cette ressource, j’ai développé un algorithme permettant de synthétiser et de visualiser les résultats obtenus par une telle analyse pour en faciliter l’interprétation. Cette approche a permis l’identification de groupes fonctionnels de protéines présentant en position 2 une utilisation d’acides aminés distincte de celle observée dans le protéome à cette position. Ces deux méthodes d’analyse globale ont convergé vers un même résultat, à savoir que les précurseurs mitochondriaux possédant une séquence N-terminale d’adressage (MTS pour mitochondrial targeting sequence) présentent en position 2 une sur-représentation de larges résidus hydrophobes, critique pour leur import à la mitochondrie et permettant leur reconnaissance par la N-acétyltransférase NatC. Le biais d’acides aminés en position 2 des MTS est très conservé dans la lignée des Saccharomycotina et a partiellement évolué chez l’Homme et la plante Arabidopsis thaliana. J’ai de plus mis en évidence l’existence de plusieurs catégories de MTS en fonction de la nature du résidu qu’ils portent en position 2, ce qui peut indiquer une co-évolution de la position 2 des MTS et de leur composition globale et pose la question des propriétés optimales de ces séquences. Enfin, j’ai montré que les peptides signaux de la levure et la séquence N-terminale d’adressage au chloroplaste d’Arabidopsis thaliana présentent également des biais d’acides aminés en position 2, suggérant que le résidu à cette position pourrait jouer un rôle clé dans la reconnaissance de ces séquences par les systèmes d’adressage et d’import associés
The residue located at position 2 of proteins, following their initiator methionine, is a key signal for the co-translational recruitment of various modification enzymes that early impact their cellular fate (addressing, folding, half-life). Although the importance of this residue is established for a few proteins, its role at the global scale of the proteome and the nature of the selective pressures it may be subject to remain unexplored to this day. During my thesis, I used for the first time global analysis methodologies to conduct a functional and evolutionary study of the residue located at position 2 of proteins. I used two complementary in silico approaches developed in the model yeast Saccharomyces cerevisiae. The first approach I used is the study of modification enzymes whose recruitment depends on the residue at position 2 of their targets. I focused in particular on N-acetyltransferases. These enzymes have the same enzymatic activity of N-acetylation but target distinct subsets of proteins, and their deletions are associated with different phenotypes, raising the question of the specific role of each enzyme in cellular physiology. Through the analysis of experimental data related to these enzymes, I characterized their global selectivity in vivo and formally demonstrated that they indeed have differential physiological roles. The second approach I used is the study of the distribution of amino acids at position 2 in the proteome and in functional groups of proteins defined by the Gene Ontology. While current tools used to perform Gene Ontology analyses do not take into account the hierarchical structure of this resource, I developed an algorithm to synthesize and visualize the results obtained by such analyses to facilitate their interpretation. This approach allowed the identification of groups of proteins that present a distinct amino acid usage at position 2 compared to that observed in the proteome at this position. These two global analysis methods converged toward the same result, namely that mitochondrial precursors possessing an N-terminal addressing sequence (MTS for mitochondrial targeting sequence) exhibit at position 2 an overrepresentation of large hydrophobic residues, critical for their import into mitochondria and enabling their recognition by the NatC acetyltransferase. The amino acid bias at position 2 of MTS is highly conserved in the Saccharomycotina lineage and has partially evolved in humans and the plant Arabidopsis thaliana. I also highlighted the existence of several categories of MTS depending on the nature of the residue they carry at position 2, which may indicate co-evolution of position 2 of MTS and their overall composition and raises the question of optimal properties of these sequences. Finally, I showed that yeast signal peptides and the chloroplast N-terminal addressing sequence in Arabidopsis thaliana also exhibit amino acid biases at position 2, suggesting that the residue at this position could play a key role in the recognition of these sequences by associated addressing and import systems
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Bucurgat, Mahmut. "Study Of One Dimensional Position Dependent Effective Mass Problem In Some Quantum Mechanical Systems". Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/2/12609405/index.pdf.

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The one dimensional position dependent effective mass problem is studied by solving the Schrö
dinger equation for some well known potentials, such as the deformed Hulthen, the Mie, the Kratzer, the pseudoharmonic, and the Morse potentials. Nikiforov-Uvarov method is used in the calculations to get energy eigenvalues and the corresponding wave functions exactly. By introducing a free parameter in the transformation of the wave function, the position dependent effective mass problem is reduced to the solution of the Schrö
dinger equation for the constant mass case. At the same time, the deformed Hulthen potential is solved for the position dependent effective mass case by applying the method directly. The Morse potential is also solved for a mass distribution function, such that the solution can be reduced to the constant mass case.
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9

Cagatay, Kartal. "Modeling, Identification And Real Time Position Control Of A Two-axis Gimballed Mirror System". Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/2/12611668/index.pdf.

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This work focuses on modeling, parameter estimation, and real-time position control of a two axis Gimbaled Mirror System (GMS) which is designed and manufactured to move an IR spot generated by an Infra Red Scene Generator System (IRSGS) in two orthogonal axes (elevation and azimuth) within the IR scene which is also generated by the IRSGS. Mathematical models of the GMS, the control system, and the disturbance torque originated from the movements of Flight Motion Simulator (FMS), on which the IRSGS will be mounted, are constructed using MATLAB®
/Simulink®
and MATLAB/Simulink/SimMechanics®
. Parameter estimations of the GMS and control system elements are achieved using MATLAB/Simulink Parameter Estimation Tool®
. The controller tuning is performed using the developed mathematical models in MATLAB/Simulink environment. Optimized digital PID controllers are implemented in the real-time control system. Performances of the controllers for both GMS axes are evaluated by both real system tests and simulation runs
and the results of these runs are compared. Controller performances under the effect of disturbances are analyzed by using the mathematical models developed in the MATLAB/ Simulink environment.
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Jeannot, Frédéric. "Synthèse et étude d'analogues nucléosidiques incorporant le groupement trifluorométhyle en position 2' et 3'". Montpellier 2, 2002. http://www.theses.fr/2002MON20117.

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Libros sobre el tema "Position 2"

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Coalition, Northern Ireland Women's. Position on Strands 1, 2, and 3. Belfast: Women's Coalition, 1998.

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Geller, Helmut. Position — Rolle — Situation. Wiesbaden: VS Verlag für Sozialwissenschaften, 1994. http://dx.doi.org/10.1007/978-3-322-95981-2.

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Bolanakis, Dimosthenis E. MEMS Barometers Toward Vertical Position Detection. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-031-79573-2.

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Burdea, Grigore C. 2 piece jig-saw puzzle robot assembly with vision, position, and force feedback. New York: Courant Institute of Mathematical Sciences, New York University, 1987.

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United States. National Aeronautics and Space Administration., ed. Guidance of nonlinear nonminimum-phase dynamic systems: Performance report; period: 3/1/96 - 2/28/97; grant number: NAG 2-1042. [Washington, DC: National Aeronautics and Space Administration, 1996.

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United States. National Aeronautics and Space Administration., ed. Guidance of nonlinear nonminimum-phase dynamic systems: Performance report; period: 3/1/96 - 2/28/97; grant number: NAG 2-1042. [Washington, DC: National Aeronautics and Space Administration, 1996.

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Lamon, Pierre. 3D-Position Tracking and Control for All-Terrain Robots. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-78287-2.

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American Institute of Certified Public Accountants. Accounting Standards Executive Committee. Amendment to scope of Statement of position 95-2, Financial reporting by nonpublic investment partnerships, to include commodity pools. New York, NY: The Institute, 2001.

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United States. National Aeronautics and Space Administration., ed. Guidance of nonlinear nonminimum-phase dynamic systems: Performance report, period: 3/1/97 - 11/14/97, grant number: NAG 2-1042. [Washington, DC: National Aeronautics and Space Administration, 1997.

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United States. National Aeronautics and Space Administration., ed. Guidance of nonlinear nonminimum-phase dynamic systems: Performance report, period: 3/1/97 - 11/14/97, grant number: NAG 2-1042. [Washington, DC: National Aeronautics and Space Administration, 1997.

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Capítulos de libros sobre el tema "Position 2"

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Sotoudehnia, Maral. "An uncomfortable position". En Writing Intimacy into Feminist Geography, 33–40. Abingdon, Oxon ; New York, NY : Routledge, [2017]: Routledge, 2017. http://dx.doi.org/10.4324/9781315546186-2.

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Johansen, Ken. "Root Position Triads". En Harmony at the Piano, 4–19. New York: Routledge, 2023. http://dx.doi.org/10.4324/9781003333289-2.

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Nyce, David S. "Specifications". En Understanding Position Sensors, 17–76. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003368991-2.

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Monk, Alex. "The Curse Position (2)". En Trauma and the Supernatural in Psychotherapy, 54–67. London: Routledge, 2023. http://dx.doi.org/10.4324/9781003168027-5.

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Ebert, Susanne y Thorsten Veith. "review your position". En Systemisch beraten und steuern live 2, 9–22. Göttingen: Vandenhoeck & Ruprecht, 2011. http://dx.doi.org/10.13109/9783666403361.9.

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Ranz, Thomas. "Initial Position—Solutionprocess". En Linear Elasticity of Elastic Circular Inclusions Part 2/Lineare Elastizitätstheorie bei kreisrunden elastischen Einschlüssen Teil 2, 9–10. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62852-9_2.

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Vicker, Lauren A. y Harriette J. Royer. "Profile and Position Descriptions". En The Complete Academic Search Manual, 9–19. New York: Routledge, 2023. http://dx.doi.org/10.4324/9781003447719-2.

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White, Tony. "Masterclass 40/Breakdown Position 2". En Animation Masterclasses: From Pencils to Pixels, 675–94. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003324287-44.

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O'Farrell, Holly. "The Theoretical and Historiographical Position". En British Representations of the Middle East in the Exhibition Space, 1850–1932, 21–43. New York: Routledge, 2023. http://dx.doi.org/10.4324/9781003363835-2.

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Cole, G. D. H. "The Position in Certain Industries". En The Payment of Wages, 8–20. London: Routledge, 2023. http://dx.doi.org/10.4324/9781003424321-2.

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Actas de conferencias sobre el tema "Position 2"

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"WC6: position measurements 2". En Proceedings of the 21st IEEE Instrumentation and Measurement Technology Conference. IEEE, 2004. http://dx.doi.org/10.1109/imtc.2004.1351230.

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Patrikakis, Charalampos Z. "Session details: Position paper session 2". En MM '10: ACM Multimedia Conference. New York, NY, USA: ACM, 2010. http://dx.doi.org/10.1145/3252131.

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Shaik, A., N. S. Tlale y G. Bright. "2 DOF Resolution Adjustment Laser Position Sensor". En 2008 15th International Conference on Mechatronics and Machine Vision in Practice (M2VIP). IEEE, 2008. http://dx.doi.org/10.1109/mmvip.2008.4749539.

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Walczak, Andrzej y Leszek Puzio. "2-D wavelet with position controlled resolution". En Congress on Optics and Optoelectronics, editado por Andrzej Kowalczyk, Adolf F. Fercher y Valery V. Tuchin. SPIE, 2005. http://dx.doi.org/10.1117/12.622783.

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Bodenstaff, Lianne, Roel Wieringa, Andreas Wombacher y Manfred Reichert. "Towards Management of Complex Service Compositions - Position Paper". En 2009 World Conference on Services - II (SERVICES-2). IEEE, 2009. http://dx.doi.org/10.1109/services-2.2009.27.

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Mohd Azrel Abu Talib, Ahmad Shahril Khamarazaman, Mohd Yusuf Salimun, Johari Jaafar y Ruhizan Liza Ahmad Shauri. "PID position control for 2-DOF robotic finger". En 2013 IEEE 4th Control and System Graduate Research Colloquium (ICSGRC). IEEE, 2013. http://dx.doi.org/10.1109/icsgrc.2013.6653294.

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Kepesi, Marian, Franz Pernkopf y Michael Wohlmayr. "Joint Position-Pitch Tracking for 2-Channel Audio". En 2007 International Workshop on Content-Based Multimedia Indexing. IEEE, 2007. http://dx.doi.org/10.1109/cbmi.2007.385426.

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Dietrich, S. "Session details: Network security and position papers 2". En CCS '10: 17th ACM Conference on Computer and Communications Security 2010. New York, NY, USA: ACM, 2010. http://dx.doi.org/10.1145/3258340.

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Silva, Gustavo, Pedro Leite y Fábio Meneghetti Ugulino de Araújo. "Intelligent Position Control in a Multivariable 2 DOF System". En 25th International Congress of Mechanical Engineering. ABCM, 2019. http://dx.doi.org/10.26678/abcm.cobem2019.cob2019-0968.

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Yamamoto, Yuji y Takuya Matsuzaki. "Absolute Position Embedding Learns Sinusoid-like Waves for Attention Based on Relative Position". En Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing. Stroudsburg, PA, USA: Association for Computational Linguistics, 2023. http://dx.doi.org/10.18653/v1/2023.emnlp-main.2.

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Informes sobre el tema "Position 2"

1

Elder, H. H. Position Paper on Sludge Batch 2 Qualification Strategy and Simulant Composition. Office of Scientific and Technical Information (OSTI), septiembre de 2001. http://dx.doi.org/10.2172/786669.

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Connolly, M. J., K. J. Liekhus, S. M. Djordjevic, C. A. Loehr y L. R. Spangler. Position for determining gas-phase volatile organic compound concentrations in transuranic waste containers. Revision 2. Office of Scientific and Technical Information (OSTI), junio de 1998. http://dx.doi.org/10.2172/663400.

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Pstuty, Norbert, Mark Duffy, Dennis Skidds, Tanya Silveira, Andrea Habeck, Katherine Ames y Glenn Liu. Northeast Coastal and Barrier Network Geomorphological Monitoring Protocol: Part I—Ocean Shoreline Position, Version 2. National Park Service, junio de 2022. http://dx.doi.org/10.36967/2293713.

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Following a review of Vital Signs – indicators of ecosystem health – in the coastal parks of the Northeast Coastal and Barrier Network (NCBN), knowledge of shoreline change was ranked as the top variable for monitoring. Shoreline change is a basic element in the management of any coastal system because it contributes to the understanding of the functioning of the natural resources and to the administration of the cultural resources within the parks. Collection of information on the vectors of change relies on the establishment of a rigorous system of protocols to monitor elements of the coastal geomorphology that are guided by three basic principles: 1) all of the elements in the protocols are to be based on scientific principles; 2) the products of the monitoring must relate to issues of importance to park management; and 3) the application of the protocols must be capable of implementation at the local level within the NCBN. Changes in ocean shoreline position are recognized as interacting with many other elements of the Ocean Beach-Dune Ecosystem and are thus both driving and responding to the variety of natural and cultural factors active at the coast at a variety of temporal and spatial scales. The direction and magnitude of shoreline change can be monitored through the application of a protocol that tracks the spatial position of the neap-tide, high tide swash line under well-defined conditions of temporal sampling. Spring and fall surveys conducted in accordance with standard operating procedures will generate consistent and comparable shoreline position data sets that can be incorporated within a data matrix and subsequently analyzed for temporal and spatial variations. The Ocean Shoreline Position Monitoring Protocol will be applied to six parks in the NCBN: Assateague Island National Seashore, Cape Cod National Seashore, Fire Island National Seashore, Gateway National Recreation Area, George Washington Birthplace National Monument, and Sagamore Hill National Historic Site. Monitoring will be accomplished with a Global Positioning System (GPS )/ Global Navigation Satellite System (GNSS) unit capable of sub-meter horizontal accuracy that is usually mounted on an off-road vehicle and driven along the swash line. Under the guidance of a set of Standard Operating Procedures (SOPs) (Psuty et al., 2022), the monitoring will generate comparable data sets. The protocol will produce shoreline change metrics following the methodology of the Digital Shoreline Analysis System developed by the United States Geological Survey. Annual Data Summaries and Trend Reports will present and analyze the collected data sets. All collected data will undergo rigorous quality-assurance and quality-control procedures and will be archived at the offices of the NCBN. All monitoring products will be made available via the National Park Service’s Integrated Resource Management Applications Portal.
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Hutzel, W. J., J. L. III Hill y E. L. Foster. Innovative directional and position specific sampling technique. Phase 2, Final report, [July 28, 1992--February 15, 1994]. Office of Scientific and Technical Information (OSTI), enero de 1994. http://dx.doi.org/10.2172/10142446.

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Sterbentz, James. ECAR-2066 JMOCUP As-Run Daily Depletion Calculation for the AGR-2 Experiment in ATR B-12 Position. Office of Scientific and Technical Information (OSTI), abril de 2014. http://dx.doi.org/10.2172/1964092.

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Kopp, Daniel M. Final technical report. Development and installation of a high resolution position sensitive 40x40 cm{sup 2} gas detector for small angle neutron scattering applications at IPNS: ORDELA model 2410N position-sensitive proportional counter system. Office of Scientific and Technical Information (OSTI), marzo de 2001. http://dx.doi.org/10.2172/807502.

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LeVert, F. E. Large area self-powered gamma ray detector. Phase 2, Development of a source position monitor for use on industrial radiographic units. Office of Scientific and Technical Information (OSTI), enero de 1994. http://dx.doi.org/10.2172/10119124.

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Feliu, Vicente, Kuldip S. Rattan, Jr Brown y H. B. A New Approach to Control Single-Link Flexible Arms. Part 2. Control of the Tip Position in the Presence of Joint Friction. Fort Belvoir, VA: Defense Technical Information Center, julio de 1989. http://dx.doi.org/10.21236/ada213365.

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Pradelli, Juan Jose, Kimberly Waithe, Allan Wright, Dillon Clarke, Jeetendra Khadan, Juan Pedro Schmid y Mark D. Wenner. Caribbean Region Quarterly Bulletin: Commodities in the Caribbean: Volume 6: Issue 2: June 2017. Inter-American Development Bank, junio de 2017. http://dx.doi.org/10.18235/0008152.

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This issue of the Caribbean Region Quarterly Bulletin explores the importance of commodities for the region’s countries. While the Caribbean includes commodity producers, most members depend heavily on energy imports. The fall in oil prices was a huge relief for these countries, improving the external position, keeping prices stable and increasing the purchasing power for households. At the same time, Suriname and Trinidad and Tobago were hit hard with falls in exports, revenues, and economic contractions. As usual, the Quarterly Bulletin also covers recent economic developments in The Bahamas, Barbados, Guyana, Jamaica, Suriname, and Trinidad and Tobago, and includes a section on the Organisation of Eastern Caribbean States (OECS).
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Gilewski, Teresa A. Position Emitter I124 Iododeoxyuridine as a Tracer to Follow DNA Metabolism on Scans and in Tumor Samples in Advanced Breast Cancer: Comparison of 18F 2-Fluror-2-Deoxy-(D)-Glucose, as a Tracer for Glycolysis. Fort Belvoir, VA: Defense Technical Information Center, diciembre de 2005. http://dx.doi.org/10.21236/ada450668.

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