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Auteur : Grafiati

Publié le 25 juillet 2024

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1

Millour, Florentin. « Interférométrie différentielle avec AMBER ». Phd thesis, Université Joseph Fourier (Grenoble), 2006. http://tel.archives-ouvertes.fr/tel-00134268.

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L'interférométrie optique en astronomie est une technique permettant de sonder les objets observés à une résolution spatiale impossible à atteindre avec un télescope unique. Ce domaine d'instrumentation entre dans une nouvelle phase avec l'arrivée de nouveaux instruments combinant de très grands télescopes sur des bases allant jusqu'à 200m. AMBER (Astronomical Multi BEam Recombiner) est l'instrument recombineur à trois télescopes du VLTI (Very Large Telescope Interferometer) qui apporte à la fois de la résolution spectrale et des capacités d'imagerie sur cette infrastructure à la pointe de la recherche astrophysique. Je présente dans cette thèse mon apport au traitement du signal de l'instrument AMBER afin d'obtenir les observables nécessaires à l'exploitation scientifique des données. J'y présente l'approche dans le plan image qui a été utilisée et validée sur le ciel avec cet instrument, insi que les observables différentielles chromatiques que j'ai développées spécifiquement. Les observables différentielles chromatiques consistent à comparer la mesure de franges enregistrées simultanément entre deux longueurs d'ondes proches. Cela permet de reconstruire une fraction très substancielle de l'information de phase de l'objet, perdue par les estimateurs classiques jusque là utilisés en interférométrie. Je développe aussi le potentiel de ces observables ainsi que leur application pratique sur l'étude de divers objets astrophysiques dont les étoiles à enveloppe et les objets binaires.

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2

Spencer, Courtney J., et Courtney Spencer. « From Amber to Darkness ». ScholarWorks@UNO, 2012. http://scholarworks.uno.edu/td/1577.

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3

Taschner, Stefan. « Flood modelling in the Ammer watershed using coupled meteorological and hydrological models ». Diss., [S.l. : s.n.], 2003. http://edoc.ub.uni-muenchen.de/archive/00002116/.

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4

Knippel, Mark Jacob 1983. « The Amber of the Moment ». Thesis, University of Oregon, 2011. http://hdl.handle.net/1794/11486.

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1 score (vii, 56 p.) Includes one sound recording in AIFF (Audio Interchange File Format)
The Amber of the Moment is a thirteen-minute composition for orchestra. Inspiration for this piece is drawn from two sources: the novel Slaughterhouse Five by Kurt Vonnegut Jr., and my desire to utilize techniques derived from various musical cultures, including Balinese gamelan and African drumming and marimba playing. Although not directly narrative, much of the imagery portrayed in Slaughterhouse Five informed the emotional landscape of the piece. As to the use of techniques from other cultures, my aim is not to merely imitate them, but to utilize them in a manner appropriate to the tradition of orchestral concert music.
Committee in charge: Dr. David Crumb, Chairperson; Dr. Robert Kyr, Member; Dr. Stephen Rodgers, Member

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5

Foschini, Federico. « Amber : a Cloud Service Architecture proposal ». Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13840/.

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Al giorno d’oggi, Cloud, Internet Of Things e Big Data sono tra i topic di maggior interesse, considerando il ruolo centrale che il dato sta assumendo sempre di più. Infatti, le nuove tipologie di soluzioni sono sempre più dedicate alla gestione e collezione dei dati per poter supportare i processi di analisi atti a migliorare il business aziendale. I processi di progettazione di queste soluzioni spesso sono particolarmente complessi e richiedono un effort importante, aumentandone quindi la complessità. Inoltre, la progettazione delle soluzioni interessate sono particolarmente correlate alla piattaforma ed alle tecnologie utilizzate, introducendo quindi criticità legate a tali dipendenze. Questa tesi propone la definizione di un modello di architettura che volta a supportare la progettazione di diverse tipologie di soluzioni Cloud per agevolare, semplificare e migliorare la loro progettazione. Uno degli obiettivi di questo modello è la trasparenza rispetto agli aspetti tecnologici. Infatti, è stato descritto come questo modello di architettura possa agire da wrapper tra la soluzione realizzata e la piattaforma che la ospita, rendendo così trasparente la complessità tecnologica. I moduli dell’architettura possono quindi essere distribuiti su diverse piattaforme, senza che ne vengano influenzate le caratteristiche e funzionalità, grazie alla loro indipendenza. All’interno della tesi viene proposto anche un caso di studio reale che mostra come possa essere effettuato il porting di un sistema Web su Cloud adottando l’architettura proposta. Il sistema interessato dal caso di studio è UniSAS, soluzione appartenente al contesto Smart Living, dedicata al miglioramento dell’accessibilità e al controllo degli accessi. L’architettura che viene definita e descritta in questa tesi permette quindi di ottimizzare l’effort e le risorse necessarie alla progettazione di soluzioni Cloud multi-piattaforma e multi-contesto, con l’obiettivo di ridurne la complessità e criticità.

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6

Bray, P. Sargent. « A geochemical investigation of Carboniferous amber / ». Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1456287211&sid=3&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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7

Pavlenko, Ilia V. « Design, improvement, and testing of a thermal-electrical analysis application of a multiple beta-tube AMTEC converter ». Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/104.

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A new design AMTEC converter model was developed, and its effectiveness as a design tool was evaluated. To develop the model, requirements of the model were defined, several new design models were successively developed, and finally an optimal new design model was developed. The model was created within Sinda/Fluint, with its graphical interface, Thermal Desktop, a software package that can be used to conduct complex thermal and fluid analyses. Performance predictions were then correlated and compared with actual performance data from the Road Runner II AMTEC converter. Predicted performance results were within 10% of actual performance data for all operating conditions analyzed. This accuracy tended to increase within operating ranges that would be more likely encountered in AMTEC applications. Performance predictions and parametric design studies were then performed on a proposed new design converter model with a variety of annular condenser heights and with potassium as a working fluid to evaluate the effects of various design modifications. Results clearly indicated the effects of the converter design modifications on the converter's power and efficiency, thus simplifying the design optimization process. With the close correlation to actual data and the design information obtained from parametric studies, it was determined that the model could serve as an effective tool for the design of AMTEC converters.

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8

Koch, Andreas Verfasser], Christian [Akademischer Betreuer] [Ammer et Steffen [Akademischer Betreuer] Rust. « Quantifizierung der Feinwurzeln von Bäumen durch elektrische Verfahren / Andreas Koch. Gutachter : Christian Ammer ; Steffen Rust. Betreuer : Christian Ammer ». Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2015. http://d-nb.info/107006825X/34.

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9

Owen, Jennifer Chowning. « Forever Amber the impact of the Amber Room on Russia's cultural stature then, now and in the future / ». Connect to Electronic Thesis (CONTENTdm), 2009. http://worldcat.org/oclc/457041064/viewonline.

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10

Hernandez, Utrera Oscar. « Optimisation du traitement de l’information issue de l’instrument amber ». Université Joseph Fourier (Grenoble), 2008. http://www.theses.fr/2008GRE10076.

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L'interférométrie optique/infrarouge à longue base pennet aux astronomes de sonder l'univers avec une résolution de l'ordre du millième de seconde d'arc. La construction de nouveaux recombinateurs interférométriques a présenté la nécessité de développer une méthodologie du traitement du signal appropriée pennettant de profiter au maximum de toutes leurs capacités. Parmi la prémière génération des recombineurs des faisceaux du VLTI (Very Large Telescope Interferometer), l'instrument AMBER fonctionne dans l'infrarouge proche et peut recombiner les faisceaux de deux ou trois télescopes simultanément. Ce travail est entièrement consacré à l'analyse et à l'amélioration des algorithmes de traitement de données issues de l'instrument AMBER, en se focalisant principalement sur les observables interférométriques absolus. Nous commençons notre discussion par un bref rappel des principes de l'interférométrie stellaire. Nous présentons l'instrument AMBER et nous introduisons en détaille traitement de données standard. Ensuite, nous développons un algorithme de réduction de données indépendant qui nous pennet, d'un côté, de tester et de valider l'algorithme standard et, d'un autre côté, de développer un algorithme robuste pour estimer le piston atmosphérique. Finallement, nous appliquons ces méthodes améliorées aux observations de l'étoile Bételgeuse. La confinnation de son diamètre demontre, de manière complètement indépendante, la stabilité de AMBER sur le ciel et sa capacité à produire des visibilités absolues fiables
Long baseline optical/infrared interferometry allows the astronomers to probe the Universe with a milliarcseconds resolution. The construction of new interferometric beam combiners presented the necessity to develop the appropriate data processing methodology allowing to take the maximum advantage of ail their capacities. Among the fitst generation beam combiners of the VL TI (Very Large Telescope Interferometer), AMBER (Astronomical MultiBEam Recombiner) instrument operates in the near infrared and is able to combine the beams of two or three telescopes simultaneously. This work is entirely devoted to the validation and the improvement of the AMBER data processing algorithms, focusing on absolute interferometric observables. We start our discussion with a brief overview of the foundations of the stellar interferometry. Likewise, we present the AMBER instrument, and we introduce in detail the standard data processing. Then, we develop an independent data processing software which allow us, in one hand, to test and validate the standard processing approach, and in the other hand, to develop the improved data processing algorithms. We provide an improved data processing algorithm to reduce AMBER data, and we developed a robust algorithm to estimate the atmospheric piston. Finally, we apply these improved approaches to the observations of the star Betelgeuse. The confinnation of the diameter of the star demonstrates, from a completely independent way, the stabilitv of AMBER on the skv and its abilitv to Droduce reliable absolute visibilities

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11

Ashlock, Clint Rudy Paul. « Amber canvas a composition for jazz orchestra / ». Diss., UMK access, 2006.

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Thesis (M.M.)--Conservatory of Music. University of Missouri--Kansas City, 2006.
"A thesis in music composition." Advisor: Paul Rudy. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed Nov. 12, 2007. Online version of the print edition.

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12

Gurlekian, Jorge, et Guillermo Toledo. « AMPER-Argentina : pretonemas en oraciones interrogativas absolutas ». Pontificia Universidad Católica del Perú, 2012. http://repositorio.pucp.edu.pe/index/handle/123456789/103297.

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Este trabajo es parte del Proyecto AMPER (Atlas Multimedia de la Prosodia del Espacio Románico). El área dialectal de estudio es el español de Buenos Aires. En el artículo se analizan las oraciones interrogativas absolutas SVO: un SN (núcleos sintácticos paroxítonos, proparoxítonos, oxítonos), un SV (núcleo paroxítono), un SPrep (núcleos paroxítonos, proparoxítonos, oxítonos). También se examinan los pretonemas según el modelo de entonación métrico y autosegmental (AM), y se observa la influencia de la frase fonológica (φ) en la representación fonológica de los acentos tonales. Los resultados de los pretonemas indican diferencias y no un único fraseo prosódico que caracterice a esta modalidad. Los primeros picos (P1) de la primera φ no muestran tonos más altos si se los compara con los P1 de oraciones declarativas. Se descarta un tono de frontera H% inicial. Estos hallazgos confirman otro estudio previo: la información sobre la modalidad interrogativa absoluta se encuentra fuera del pretonema, en el tonema final.
The present work belongs to project AMPER (Multimedia Atlas of Prosody of the Romanic Space). The dialectal area of study is the Spanish from Buenos Aires. This work analyses absolute interrogative sentences of the SVO-type: a NP (oxytone, paroxytone and proparoxytone heads), a VP (paroxytone head), a Prep. phrase (oxytone, paroxytone and proparoxytone heads). In addition, pretonemes are examined according to the intonation Autosegmental-metrical (AM) framework and the phonological phrase (f) influence is observed on the phonological representation of pitch accents. The pretoneme results indicate differences and not only one prosodic phrasing which may characterize this modality. The first peaks (P1) which belong to the first f do not show higher tones if compared to the P1 of declarative sentences. An initial frontier tone H% is discarded. These findings confirm a previous study: information regarding the absolute interrogative modality is out of the pretoneme, in the final toneme.

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13

Kohnen, Sylvia. « Amer, chemin maritime et langage pictural ». Paris 1, 2012. http://www.theses.fr/2012PA010699.

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Une étude hodologique est menée sur la construction des voies maritimes au travers des outils et codes chromatiques utiles à la navigation. Cette analyse s'effectue à partir des phares et balises, de la carte marine, des cartes météorologiques des champs des vents et de l'état de la mer, ainsi que des nuages. Ces repères visuels permettent une oscillation entre le contexte nautique et celui de l'art par le détournement de leur langage pictural. Ce dernier met en scène la fantasmagorie de l'océan, par un jeu entre le titre et l'image, questionnant la lecture de l'oeuvre. Cette recherche est menée en lien avec mes expériences de navigatrice ouvrant un questionnement sur le sea-art, la flânerie en mer, l'artiste-navigateur.

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14

Kawaletz, Heike [Verfasser], Christian [Akademischer Betreuer] Ammer, Stefan [Akademischer Betreuer] Zerbe et Dirk [Akademischer Betreuer] Hölscher. « Competition mechanisms of native and exotic tree species / Heike Kawaletz. Gutachter : Christian Ammer ; Stefan Zerbe ; Dirk Hölscher. Betreuer : Christian Ammer ». Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2014. http://d-nb.info/1046217291/34.

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15

Kawaletz, Heike Verfasser], Christian [Akademischer Betreuer] [Ammer, Stefan [Akademischer Betreuer] Zerbe et Dirk [Akademischer Betreuer] Hölscher. « Competition mechanisms of native and exotic tree species / Heike Kawaletz. Gutachter : Christian Ammer ; Stefan Zerbe ; Dirk Hölscher. Betreuer : Christian Ammer ». Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2014. http://d-nb.info/1046217291/34.

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16

Blight, Sherry Kathleen. « Amber codon translation as pyrrolysine in Methanosarcina spp ». Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1149012579.

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17

Longstaff, David Gordon. « Requirements and rationale for amber translation as pyrrolysine ». Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1196107921.

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18

Thornby, John Albert. « AMBER : a novel approach to neutrino mass measurement ». Thesis, University of Warwick, 2008. http://wrap.warwick.ac.uk/56292/.

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The existence of neutrino oscillations demands that neutrinos have non-zero rest mass, the evidence for and implications of which are discussed. Nuclear B-decay is offered as a model-independent tool for direct neutrino mass measurement and contemporary experimental measurements are reviewed. The AMBER experiment is introduced as a novel charge spectrometer, aimed at precision electron energy measurements to probe the structure of the B-spectrum close to its endpoint. AMBER employs a vacuum insulated inverse Kelvin probe to continuously monitor a single rate-of-change observable. A detailed technical description of the technique is provided, followed by proof of principle demonstrations and an examination of hardware performance and its capability to provide sub-eV electron energy resolution. a first order B-spectrum reconstruction algorithm is described and applied to data from a Monte Carlo simulation of a highly idealised AMBER-like model experiment, in which important source scattering effects are neglected, and a calculation of the sensitivity to the neutrino mass is made. Finally the successes and shortcomings of the AMBER technique are discussed.

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19

Schoeman, Adam. « Amber : a aero-interaction honeypot with distributed intelligence ». Thesis, Rhodes University, 2015. http://hdl.handle.net/10962/d1017938.

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For the greater part, security controls are based on the principle of Decision through Detection (DtD). The exception to this is a honeypot, which analyses interactions between a third party and itself, while occupying a piece of unused information space. As honeypots are not located on productive information resources, any interaction with it can be assumed to be non-productive. This allows the honeypot to make decisions based simply on the presence of data, rather than on the behaviour of the data. But due to limited resources in human capital, honeypots’ uptake in the South African market has been underwhelming. Amber attempts to change this by offering a zero-interaction security system, which will use the honeypot approach of decision through Presence (DtP) to generate a blacklist of third parties, which can be passed on to a network enforcer. Empirical testing has proved the usefulness of this alternative and low cost approach in defending networks. The functionality of the system was also extended by installing nodes in different geographical locations, and streaming their detections into the central Amber hive.

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20

Pastorelli, Gianluca <1975&gt. « Archaeological Baltic amber : degradation mechanisms and conservation measures ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/2259/1/Pastorelli_Gianluca_tesi.pdf.

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The aim of this project was to achieve a deep understanding of the mechanisms by which Baltic amber degrades, in order to develop techniques for preventive conservation of archaeological amber objects belonging to the National Museum of Denmark’s collections. To examine deterioration of Baltic amber, a starting point was to identify and monitor surface and bulk properties which are affected during degradation. The way to operate consisted of the use of accelerated ageing to initiate degradation of raw Baltic amber samples in different conditions of relative humidity, oxygen exposure or pH and, successively, of the use of non/micro-destructive techniques to identify and quantify changes in visual, chemical and structural properties. A large piece of raw Baltic amber was used to prepare several test samples for two different kinds of accelerated ageing: thermal-ageing and photo-ageing. During the ageing, amber samples were regularly examined through several analytical techniques related to different information: appearance/colour change by visual examination, photography and colorimetry; chemical change by infrared spectroscopy, Raman spectroscopy and elemental analysis; rate of oxidation by oxygen measurement; qualitative analysis of released volatiles by gas chromatography – mass spectrometry. The obtained results were analysed through both critical evaluation and statistical study. After the interpretation of the achieved data, the main relations between amber and environmental factors during the degradation process became clearer and it was possible to identify the major pathways by which amber degrades, such as hydrolysis of esters into alcohols and carboxylic acids, thermal-oxidation and photo-oxidation of terpenoid components, depolymerisation and decomposition of the chemical structure. At the end it was possible to suggest a preventive conservation strategy based on the control of climatic, atmospheric and lighting parameters in the environment where Baltic amber objects are stored and displayed.

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Pastorelli, Gianluca <1975&gt. « Archaeological Baltic amber : degradation mechanisms and conservation measures ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/2259/.

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The aim of this project was to achieve a deep understanding of the mechanisms by which Baltic amber degrades, in order to develop techniques for preventive conservation of archaeological amber objects belonging to the National Museum of Denmark’s collections. To examine deterioration of Baltic amber, a starting point was to identify and monitor surface and bulk properties which are affected during degradation. The way to operate consisted of the use of accelerated ageing to initiate degradation of raw Baltic amber samples in different conditions of relative humidity, oxygen exposure or pH and, successively, of the use of non/micro-destructive techniques to identify and quantify changes in visual, chemical and structural properties. A large piece of raw Baltic amber was used to prepare several test samples for two different kinds of accelerated ageing: thermal-ageing and photo-ageing. During the ageing, amber samples were regularly examined through several analytical techniques related to different information: appearance/colour change by visual examination, photography and colorimetry; chemical change by infrared spectroscopy, Raman spectroscopy and elemental analysis; rate of oxidation by oxygen measurement; qualitative analysis of released volatiles by gas chromatography – mass spectrometry. The obtained results were analysed through both critical evaluation and statistical study. After the interpretation of the achieved data, the main relations between amber and environmental factors during the degradation process became clearer and it was possible to identify the major pathways by which amber degrades, such as hydrolysis of esters into alcohols and carboxylic acids, thermal-oxidation and photo-oxidation of terpenoid components, depolymerisation and decomposition of the chemical structure. At the end it was possible to suggest a preventive conservation strategy based on the control of climatic, atmospheric and lighting parameters in the environment where Baltic amber objects are stored and displayed.

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22

Buyukuslu, Nihal. « A biochemical and genetic investigation of the beta subunit of E. coli RNA polymerase ». Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319619.

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23

Weber, Verena. « Kontrollen des Europäischen Amtes für Betrugsbekämpfung (OLAF) in Italien / ». Witten : Mendel, 2003. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=012812242&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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24

Henwood, Alison Ayodele. « Insect taphonomy from Tertiary amber of the Dominican Republic ». Thesis, University of Cambridge, 1993. https://www.repository.cam.ac.uk/handle/1810/251539.

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25

Daroussis, Kristina. « Kontrollen des Europäischen Amtes für Betrugsbekämpfung (OLAF) in Griechenland / ». Witten : Mendel, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014825842&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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26

Decker, Kai F. « Grundrechtsschutz bei Handlungen des Europäischen Amtes für Betrugsbekämpfung (OLAF) / ». Hamburg : Kovač, 2008. http://d-nb.info/988939215/04.

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Akre, Anders Tvetmarken, et Sebastian Bøe. « Turbo Amber : A high-performance processor core for SHMAC ». Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-27043.

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The performance increase of state of the art processors has stagnated dueto power and thermal constraints. Heterogeneous computing has latelyattracted interest and may be the key for improving the performanceand energy-efficiency of computing systems under their tight physicalbudgets. The Single-ISA Heterogeneous MAny-core Computer (SHMAC)project is a research project that seeks to explore the challenges ofheterogeneous computing. Therefore, the SHMAC project requires adiversity of processor cores of different size and performance, to exploreheterogeneous architectures.Currently, there is only one processor core, Amber, available for SHMAC.This thesis presents the development of Turbo Amber (TA), a high-performance processor core for SHMAC. We present an overview of high-performance processor architecture techniques and extend the existingAmber core with a branch predictor, a return address stack, an instructionqueue and a fast multiplier. The front-end of TA is capable of fetchingand performing branch prediction on up to four instructions each clockcycle and can be extended with an appropriate back-end for superscalarexecution.Our results show that TA has a performance increase of 49% over theoriginal Amber core, with a moderate increase in FPGA resource utiliza-tion: slice utilization from 4.7% to 7.9%, block RAM utilization from1.0% to 3.3%, and no DSP slices used on a Xilinx Virtex-5 FPGA. TAhas also been integrated into the existing SHMAC-infrastructure andverified by running applications on top of Linux and freeRTOS.

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28

Melton, Jimmy Robert. « Amber Valley : A black enclave in northern Alberta, Canada ». CSUSB ScholarWorks, 1994. https://scholarworks.lib.csusb.edu/etd-project/940.

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Grunenkova, Svetlana. « Fosilinių sakų tyrimas infraraudonosios spektroskopijos metodu ». Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080924_184340-36778.

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Pasaulyje yra žinoma apie 150 fosilinių sakų rūšių. Didžioji jų dalis randama Šiaurės pusrutulyje, Europoje ir Amerikoje. Be to, vis daugiau fosilinių sakų aptinkama Azijoje, Afrikoje, Pietų Amerikoje.Vienas labiausiai paplitusių fosilinių sakų – Baltijos gintaras – nuo seno naudojamas papuošalų, buitinių ir liturginių reikmenų, smulkiosios plastikos gamybai, medžio, kaulo ir kitų dirbinių dekoravimui. Nuo XIX a. pradžios mėginta analizuoti gintarą, nesuardant jo pirminės medžiagos, tačiau nesėkmingai. Tik išaiškinta, kad gintarą sudaro alkoholyje tirpi dalis ir jokiame tirpiklyje netirpstantis likutis, pavadintas sukcinitu. Dabar gintaro chemijos tyrimams pasitelkiami nauji cheminės ir fizikinės analizės metodai: chromatografija, IR spektroskopija, branduolinis magnetinis rezonansas, masių spektroskopija ir kiti. Šio darbo tikslas buvo infraraudonosios spektroskopijos analizės metodu ištirti ir palyginti tarpusavyje kelių rūšių fosilinių sakų pavyzdžius iš skirtingų šalių archeologinių radimviečių: Baltijos pajūrio (Lietuva) „šiuolaikinį“ skaidrųjį gintarą, Benaičių ir Turlojiškių archeologiniuose kompleksuose (Lietuva) rastus archeologinio gintaro pavyzdžius, tamsųjį archeologinį Japonijos gintarą, fosilinius sakus iš Centrinio Libano archeologinės radimvietės ir fosilinius sakus iš Šiaurės Paryžiaus Orsi kvartalo archeologinės radimvietės. Nustatyta, kad fosiliniai sakai iš Japonijos, Centrinio Libano ir Paryžiaus archeologinių radimviečių tikrai nėra Baltijos regiono... [toliau žr. visą tekstą]
Amber is a fossilized form of terpenoid resins. Unlike other fossil, amber is completely organic in nature, and its chemical composition remains almost constant over millions of years. Chemical characteristics of amber are a consequence of both biological origins and geological enviroment. Have been proposed different characterization techniques such as IR spectroscopy, NMR and other. By these methods chemical structure can be derived. However, these techniques do not allow totally exclusive distinction, because spectral differences cannot be universally established for all the samples. The main aim of this work was to characterize some samples of fossil resins from different countries. Six fossil resins were campared: ,,contemporary” Baltic transparent amber (Lithuania), archeological amber from Benaičiai and Turlojiškės (Lithuania), archeological amber from Japan, fossil resin from Central Lebanon and fossil resin from North Paris. These fossil resin were analyzed using IR spectroscopy method. IR spectra of fossil resin showed a presence of these groups: O─H (in polymers), ─CH3 and ─CH2─, ―Si─O─Si― or ―Si─O─C―. Come to a conclusion, the chemical structure and features of all analyzed fossil resin are similar. But they have the differences too. Fossil resins from Lithuania (Baltic transparent amber and archeological amber from Benaičiai and Turlojiškės) spectra have an absorption band at wavelength 1250-1175 cm-1, which is called ,,Baltic shoulder” by Beck. Fossil resins... [to full text]

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Hoffmann, Nils [Verfasser], Christian [Akademischer Betreuer] Ammer, Christian Gutachter] Ammer et Dirk [Gutachter] [Hölscher. « Zuwachspotenziale und Klimasensitivität eingeführter Baumarten in Nordrhein-Westfalen : Ergebnisse aus dem Arboretum Burgholz / Nils Hoffmann ; Gutachter : Christian Ammer, Dirk Hölscher ; Betreuer : Christian Ammer ». Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://nbn-resolving.de/urn:nbn:de:gbv:7-21.11130/00-1735-0000-0005-131E-5-6.

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Hoffmann, Nils [Verfasser], Christian Akademischer Betreuer] Ammer, Christian [Gutachter] Ammer et Dirk [Gutachter] [Hölscher. « Zuwachspotenziale und Klimasensitivität eingeführter Baumarten in Nordrhein-Westfalen : Ergebnisse aus dem Arboretum Burgholz / Nils Hoffmann ; Gutachter : Christian Ammer, Dirk Hölscher ; Betreuer : Christian Ammer ». Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1205155384/34.

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Hoffmann, Nils Verfasser], Christian [Akademischer Betreuer] Ammer, Christian [Gutachter] Ammer et Dirk [Gutachter] [Hölscher. « Zuwachspotenziale und Klimasensitivität eingeführter Baumarten in Nordrhein-Westfalen : Ergebnisse aus dem Arboretum Burgholz / Nils Hoffmann ; Gutachter : Christian Ammer, Dirk Hölscher ; Betreuer : Christian Ammer ». Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1205155384/34.

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Guo, Yuyan. « Mixed ionic and electronic conducting electrode studies for an alkali metal thermal to electric converter ». [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1053.

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Valdevino, Pedro Miguel dos Santos. « Optimização de uma aplicação paralela para simulações de dinâmica molecular ». Master's thesis, Faculdade de Ciências e Tecnologia, 2011. http://hdl.handle.net/10362/6256.

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Dissertação para obtenção do Grau de Mestre em Engenharia Informática
Hoje em dia é possível encontrar pacotes de software em código aberto para resolução de problemas computacionalmente exigentes (HPC) que podem ser instalados com alguma simplicidade, até por utilizadores não-informáticos. Os desenvolvedores desses pacotes privilegiam,como seria de esperar, a portabilidade do seu software em detrimento de aspectos tais como "ter uma interface utilizador muito cuidada" ou "obter o máximo desempenho". É neste último aspecto que focamos a nossa atenção: propomo-nos desenvolver uma metodologia simples que permita obter ganhos de desempenho satisfatórios em aplicações para as quais o código fonte está disponível, mas é de grande complexidade, não está documentado, não sendo, por isso, possível e/ou desejável modi cá-lo. O presente trabalho é o primeiro passo para veri car a viabilidade de tal propósito; exploram-se as possibilidades de optimização em três dimensões: arquitectura computacional,rede de interligação e software. Como \Caso de Estudo" aplicacional adopta-se o AMBER, um pacote de aplicações de Dinâmica Molecular, não deixando contudo de ensaiar uma outra aplicação similar, o NAMD. Exploram-se as três arquitecturas computacionais representativas do estado-da-arte dos sistemas ao alcance de uma pequena/média instituição de C&T: um cluster, um servidor cc-NUMA e, apenas para uma rápida comparação com as restantes, uma plataforma GPGPU.

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YOUNES, ISABELLE. « Une nouvelle technique de radiographie thoracique : le systeme amber (advanced multiple beam equalization radiography) : comparaison avec la radiologie conventionnelle ; etude prospective de 322 cas ». Toulouse 3, 1990. http://www.theses.fr/1990TOU31556.

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Forward, Martin. « The failure of Islamic modernism : Syed Ameer Ali's interpretation of Islam / ». Bern : P. Lang, 1999. http://catalogue.bnf.fr/ark:/12148/cb37648019j.

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Merabti, Karim. « Yellow Fluorescent Protein : étude du π stacking : élaboration d'un modèle du déclin de fluorescence ». Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS264/document.

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Le cadre général de cette thèse est une étude théorique par chimie quantique et dynamique moléculaire de la relation entre la structure et la fluorescence des protéines fluorescentes, en particulier, de la protéine fluorescente jaune (YFP). Dans cette protéine l'énergie de transition électronique est réduite par rapport à celle de la protéine fluorescente verte (GFP) en raison de l'empilement π entre le chromophore (la partie qui peut absorber et émetre de la lumiere visible au cœur de la protéine) et une tyrosine. Cet effet constitue la base de son utilité au laboratoire (transfert d'énergie par résonance «FRET» avec d’autres protéines). Ce travail comporte deux parties. D’une part, nous avons cherché à déterminer si un champ de force classique (ff99 de la suite AMBER) permet de représenter l’effet de π -stacking sur la dynamique à l’état excité. Pour cela nous avons effectué une série de calculs CASPT2 sur une grille de points. La conclusion est que la différence entre les surfaces d’énergie d’interaction résultant du champ de force et des calculs de chimie quantique CASPT2 ne semblent pas déterminante pour les propriétés de fluorescences.D’autre part, nous avons utilisé un modèle développé dans le groupe ThéoSim pour décrire le déclin à partir d’une série de dynamique (300ns) utilisant un champ de force classique. Cette méthode conduit à déterminer des paramètres en principe transférables d’une protéine fluorescente à une autre. Nous avons comparé la GFP et l’YFP. Cette approche ouvre la voie à une méthode rapide pour des propriétés de fluorescences pour de nouvelles protéines fluorescentes. Une prochaine étape serait d'améliorée la description du déclin radiatif utilisée dans ce modèle
The general framework of this PhD is a theoretical study by quantum chemistry and molecular dynamics of the relationship between the structure and the fluorescence properties of fluorescent proteins, particulary, of the yellow fluorescent protein (YFP). In this protein, the electron transition energy is reduced with respect to that of the green fluorescent protein (GFP) as a result of a π stacking between the chromophore (the part that absorbs and emits visible light in the protein) and a tyrosine . This effect is the basis of the usefulness of YFP in the laboratory (resonance energy transfer "FRET" with other proteins).This study has two parts. First, we have tried to determine if a classical force field (ff99 of the AMBER suite) can represent the effect of π stacking on the dynamics in the excited state. For this goal, we performed a series of CASPT2 calculations on a grid of points. The conclusion is that the difference between the interaction energy surfaces resulting from the force field and the CASPT2 calculations does not seem decisive for the fluorescence properties. Second, we used a model developed in the ThéoSim group to extract the fluorescence decay time from a series of dynamics (300ns) using a classical force field. This method leads to the determination of parameters in principle transferable across fluorescent protein. We compared GFP and YFP. This approach opens the way to a fast method for determining fluorescence properties for new fluorescent proteins. A next step would be to improve the description of radiative decay used in this model

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Gradel, Alexander Verfasser], Christian [Akademischer Betreuer] [Ammer, Christian [Gutachter] Ammer et Sven [Gutachter] Wagner. « Reaktion von Waldbeständen am Rande der südlichen Taiga auf Klimafaktoren, natürliche und waldbauliche Störungen / Alexander Gradel ; Gutachter : Christian Ammer, Sven Wagner ; Betreuer : Christian Ammer ». Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/114995910X/34.

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Ehbrecht, Martin Alexander Verfasser], Christian [Akademischer Betreuer] Ammer, Christian [Gutachter] Ammer et Dirk [Gutachter] [Hölscher. « Quantifying three-dimensional stand structure and its relationship with forest management and microclimate / Martin Alexander Ehbrecht ; Gutachter : Christian Ammer, Dirk Hölscher ; Betreuer : Christian Ammer ». Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/1151700509/34.

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Ammer, Daniel [Verfasser]. « Mikrospritzgießanlage µ-Ject mit Linearantrieb – Entwicklung und Validierung / Daniel Ammer ». Aachen : Shaker, 2008. http://d-nb.info/1162793325/34.

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Cheng, Wang. « AMBER : a domain-aware template based system for data extraction ». Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:ff49d786-bfd8-4cd4-a69c-19e81cb95920.

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The web is the greatest information source in human history, yet finding all offers for flats with gardens in London, Paris, and Berlin or all restaurants open after a screening of the latest blockbuster remain hard tasks – as that data is not easily amenable to processing. Extracting web data into databases for easier processing has been a resource-intensive process, requiring human supervision for every source from which to extract. This has been changing with approaches that replace human annotators with automated annotations. Such approaches could be successfully applied to restricted settings such as single attribute extraction or for domains with significant redundancy among sources. Multi-attribute objects are often presented on (i) Result pages, where multiple objects are presented on a single page as lists, tables or grids, with most important attributes and a summary description, (ii) Detail pages, where each page provides a detailed list of attributes and long description for a single entity, often in rich format. Both result and detail pages are having their own advantages. Extracting objects from result pages is orders of magnitude faster than from detail pages, and the links to detail pages are often only accessible through result pages. Detail pages have a complete list of attributes and full description of the entity. Early web data extraction approaches requires manual annotations for each web site to reach high accuracy, while a number of domain independent approaches only focus on unsupervised repeated structure segmentation. The former is limited in scaling and automation, while the latter is lacked in accuracy. Recent automated data extraction systems are often informed with an ontology and a set of object and attribute recognizers, however they have focused on extracting simple objects with few attributes from single-entity pages and avoided result pages. We present an automatic ontology-based multi-attribute object extraction system AMBER, which deals with both result and detail pages, achieves very high accuracy (>96%) with zero site-specific supervision, and is able to solve practical issues that arise in real-life data extraction tasks. AMBER is also applied as an important component of DIADEM, the first automatic full-site extraction system that is able to extract structured data from different domains without site-specific supervision, and has been tested through a large-scale evaluation (>10, 000) sites. On the result page side, AMBER achieves high accuracy through a novel domain- aware, path-based template discovery algorithm, and integrates annotations for all parts of the extraction, from identifying the primary list of objects, over segment- ing the individual objects, to aligning the attributes. Yet, AMBER is able to tolerate significant noise in the annotations, by combining these annotations with a novel algorithm for finding regular structures based on XPATH expressions that capture regular tree structures. On the detail page side, AMBER integrates boilerplate removal, dynamic lists identification and page dissimilarity calculation seamlessly to identify data region, then employs a set of fairly simple and cheaply computable features for attribute extraction. Besides, AMBER is the first approach that combines result page extraction and detail page extraction by integrating attributes extracted from result pages and the attributes found on corresponding detail pages. AMBER is able to identify attributes of objects with near perfect accuracy and to extract dozens of attributes with > 96% across several domains, even in presence of significant noise. It outperforms uninformed, automated approaches by a wide margin if given an ontology. Even in absence of an ontology, AMBER outperforms most previous systems on record segmentation.

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Griffith, Anne Langdon Susan Helen. « Pieces of the sun amber in Mycenaean economy and society / ». Diss., Columbia, Mo. : University of Missouri-Columbia, 2009. http://hdl.handle.net/10355/6734.

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Figures removed from thesis by author. The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on March 19, 2010). Thesis advisor: Dr. Susan Langdon. Includes bibliographical references.

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Perrichot, Vincent. « Environnements paraliques à ambre et à végétaux du Crétacé nord-aquitain (Charents, sud-ouest de la France) / ». Rennes, France : Université de Rennes I, Campus de Beaulieu, 2005. http://www.geosciences.univ-rennes1.fr/biblio/edition/MGR-Perrichot.htm.

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Gebhardt, Timo [Verfasser], Christian [Akademischer Betreuer] [Gutachter] Ammer, Thorsten E. E. Gutachter] Grams et Dirk [Gutachter] [Hölscher. « Picea abies and climate change – does increasing thinning intensity prevent drought stress ? / Timo Gebhardt ; Gutachter : Christian Ammer, Thorsten E. E. Grams, Dirk Hölscher ; Betreuer : Christian Ammer ». Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/1141379503/34.

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Gebhardt, Timo Verfasser], Christian [Akademischer Betreuer] [Gutachter] [Ammer, Thorsten E. E. Gutachter] Grams et Dirk [Gutachter] [Hölscher. « Picea abies and climate change – does increasing thinning intensity prevent drought stress ? / Timo Gebhardt ; Gutachter : Christian Ammer, Thorsten E. E. Grams, Dirk Hölscher ; Betreuer : Christian Ammer ». Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/1141379503/34.

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Ernould, Audrey Sallenave-Namont Claire. « Les vertus de l'oranger amer et de l'oranger doux ». [S.l.] : [s.n.], 2008. http://castore.univ-nantes.fr/castore/GetOAIRef?idDoc=46661.

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Gerrits, Michael. « Funktion und Effizienz von amber-Suppressor-tRNAs in der zellfreien Proteinbiosynthese ». [S.l.] : [s.n.], 2001. http://www.diss.fu-berlin.de/2002/4/index.html.

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Reizlein, Julia [Verfasser], et Hermann [Akademischer Betreuer] Ammer. « Regulation von Rezeptor-Tyrosinkinasen durch Opioide / Julia Reizlein. Betreuer : Hermann Ammer ». München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1075456630/34.

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Lawson, Sarah, et Stacy Brown. « Stability of Oral Vitamin K Solutions Stored in Amber Plastic Syringes ». Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/asrf/2018/schedule/102.

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Oral vitamin K is administered to patients who have very high INR lab values and are on warfarin therapy. Due to the inability of some patients to swallow tablets, and the commercial formulation of vitamin K being available only as a tablet or an injectable emulsion, it may be necessary to compound an oral liquid formulation. When compounding batches of oral solutions, it is sometimes convenient to measure the product in unit doses. In this project, we compared liquid vitamin K in sterile water (1mg/mL) verses liquid vitamin K in Ora-Sweet (1mg/mL) stored in amber plastic syringes. Vitamin K is light sensitive and is best stored in amber containers. Vitamin K is also lipophilic and may adsorb to the plastic syringes. In this study, we investigated the feasibility of bulk compounding oral vitamin K solutions, and aliquoting them for storage in amber plastic syringes. The Vitamin K in sterile water syringes were made by mixing 45 mL of sterile water and 5 ampules, each containing 10mg/mL of vitamin K emulsion, together in an amber glass bottle for a final concentration of 1mg/mL. Thirty 1mL plastic amber syringes were filled with the mixture, capped, and placed in the refrigerator. The same process was repeated using Ora-Sweet instead of sterile water to fill thirty more plastic amber syringes. Three syringes of vitamin K in sterile water mixture, three syringes of vitamin K in Ora-Sweet mixture, and one Vitamin K reference standard were all analyzed using HPLC-UV on the day of compounding, and at day 1, 2, 4, 7, 14, 21, 30, 60, and 90. If stability is defined as 90-110% active ingredient, then Vitamin K in sterile water is stable to fourteen days, 95.3±3.5% recovery, but some samples fell below 90% recovery after 14 days. By day ninety, the recovery in SWFI syringes was 84.2±8.9%. For vitamin K in Ora-Sweet, the within-day variability was very high due to limitations in drug dissolution; as such the average concentration was not consistently above 90%. On the day of compounding, the percent recovery in the Ora-Sweet syringes was 92.7±9.9%, despite 1 hour of stirring. In conclusion, the Vitamin K in sterile water mixture can be stored in refrigerated, amber oral plastic syringes for 14 days, but plastic amber syringes were not appropriate for storage of the Vitamin K in Ora-Sweet mixture.

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Patterer, Verena Maria [Verfasser], et Hermann [Akademischer Betreuer] Ammer. « Vorkommen des Tabakalkaloids Myosmin bei Wiederkäuern / Verena Maria Patterer. Betreuer : Hermann Ammer ». München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2011. http://d-nb.info/1015203299/34.

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