20,761 research outputs found
Study of dynamical behaviour of H2O/D2O mixtures by NMR relaxation
Get PDFTitle: Study of dynamical behavior of H2O/D2O mixtures by NMR relaxation Author: Petr Dvořák Department: Department of Low Temperature Physics Supervisor: doc. RNDr. Jan Lang, Ph.D., Department of Low Temperature Physics Abstract: The subject of this diploma thesis is the chemical exchange in the mixture of light and heavy water, which was studied by methods of high resolution NMR. The first part of this thesis concerns methodology of sample preparation and methodology of measurement of relaxation times of mixture of light and heavy wa- ter. Experimental complications with elution of ions from tube glass, degassing of samples, radiation damping and sample heating by radio-frequency pulses were solved there. In the second part of this thesis the relaxation parameters of chemical exchange of selected sample at various temperatures were measured. Interpretations of experimental data (ionization, molecular clusters and isotopic equilibrium) was suggested. Keywords: NMR, relaxation, water, dynamics, chemical exchang
Jan Kapr's contribution to contemporary music : an essay about a composer and teacher
No full textThis creative project is a treatise on a leading personality of Czechoslovakian musical life, the composer, Jan Kapr. The author discusses the following:1. The complicated development of Kapr's career and work, 2. Kapr's method of organization of musical material in a composition, as described in his book Constants,3. His former and current style which is demonstrated in two of his compositions, Concert Variations, for flute and string orchestra and Testimonies for four solo instruments,4. Two of his recent works, Exercises for Gydli and the Symphony No. 7, Country of Childhood.Thesis (M.A.
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
ELEVEN FACES OF JAN GOGOL, JR.
No full textAuthor Jan Rendl in his thesis attempts to look at the world of ideas and educator Jan
Gogola ml. through the eleven chapters in which each chapter somehow characterizes itself by Jan Gogola ml. and each of them somehow determines its creative ideas of it through the metaphor of a football match when Jan Gogola, with its characters, movies himself a teammate, as well as defensively. It gives goals with their situations as well as occasionally digging his opponents ankles.
Jan Gogola ml. thus embodies one stage of the Department of Documentary Film at FAMU, which often stands at the intersection between teaching activities and Karel Vachek among students who applied by them during their seminars psychological methods that work must be peculiarly associated with the author of the film
Dr. Jan French – Faculty Author Interview
No full textDr. Jan French, Assistant Professor of Anthropology, discusses her new book, Legalizing Identities: Becoming Black or Indian in Brazil’s Northeast, which shows how law can successfully serve as the impetus for the transformation of cultural practices and collective identity
Jan Bernátek - organ works
No full textThis graduation thesis provides a more detailed view on compositoins of Jan Bernátek.The aim is to present this less well-known temporary czech author,who makes use of the organ in the majority of his work
The Theological Work of Jan Valerián Jirsík
Get PDFAnglická anotace The theological work of Jan Valerian Jirsík Jan Hamberger This thesis deals with the theological work of the Czech 19th century author Jan Valerián Jirsík (1798-1883). Its first part consists of an introduction into the Czech historical context of the 19th century and the life of the author. Its second part presents a survey of the literary-theological work of Jirsík in three life phases: the first phase is demarked by his activity as chaplain and vicar, the second phase by his editorial activity for Casopis pro katolické duchovenstvo (trans. Magazine for catholic clergy) and the last phase by his pontifical years in the diocese of Southern Bohemia. His literary work is divided by theme into various periods, shortly described and characterized. The last and major section of this thesis deals with the most comprehensive and renown work of Jan Valerián Jirsík - Populární dogmatika (trans. Popular doctrine). This pivotal work of theologian Jirsík is discussed at large and analyzed by tractate, both apologetic and dogmatic. The conclusion expresses the prevailing character of the entire work of Jirsík and its significance. Key words: Theology Apologetic theology Dogmatic theology Theological literature Catholic Churc
Actor Profile of Jan Vondracek
No full textDivided into seven chapters, the work treats seven roles of the Czech actor Jan Vondracek (born in 1966) in Divadlo v Dlouhe Theatre from 1997-2008. The author starts from the analysis of Vondracek's performances and describes the specifics of his
showmanship and generalizes the personality traits of his characters. She also ponders the meaning of Czech dramatic art based on
typical characters in the context of contemporary Czech theatre
The picture of Jan Palach in czech culture
No full textThis thesis deals with cultural image of Jan Palach. It focuses especially on symbols and myths contributing to construction of this image. The main emphasis is given on the concept of sacrifice - the study analyzes comparisons of Jan Palach to archetypes of Jesus Christ and young martyrs. In the second part author analyzes national dimension of Palach's cultural image. She deals with comparison of Palach to Jan Hus and analyzes Palach's funeral as a part of tradition of Czech public funerals - quiet national demonstrations. The methodology of the study is discourse analysis, which is applied not only on texts (fiction and nonfiction), but also on photographic and film footage
Studium spinové struktury nukleonu s pomocí procesu Drell-Yan v experimentu Compass
Get PDFDoktorská práce pod dvojím vedením Název: Studium spinové struktury nukleonu s pomocí procesu Drell-Yan v ex- perimentu COMPASS Autor: Jan Matoušek Abstrakt: Struktura nukleonů je v současné době popisována pomocí partonových dis- tribučních funkcí závislých na příčné hybnosti (TMD PDF), které zobecňují ko- lineární PDF a zohledňují spin a příčnou hybnost partonů. Nedávná měření pro- dukce hadronů v hluboce nepružném rozptylu (SIDIS) leptonů na příčně polarizo- vaných protonech, provedená na experimentech HERMES a COMPASS, přinesla důkazy platnosti tohoto modelu. Nicméně, je důležité studovat také další reakce, jako jsou tvrdé srážky protonů a proces Drell-Yan. Například, Siversova TMD PDF, která popisuje korelaci spinu nukleonu a příčné hybnosti kvarku a projevuje se jako Siversova asymetrie, by měla mít opačné zmanénko v procesech Drell-Yan a SIDIS. V roce 2015 COMPASS naměřil Drell- Yan proces s příčně polarizovaným terčem π− p↑ → µ− µ+ X, aby tuto předpověd' jako první ověřil. Výsledky byly nedávno publikovány. Hlavním tématem mojí práce je první měření spinových asymetrií vážených příčnou hybností mionového páru ze stejných dat. Vážené asymetrie doplňují ty klasické, jejich výhoda...Jointly-supervised doctoral thesis Title: Nucleon spin structure studies in Drell-Yan process at COMPASS Author: Jan Matoušek Department I: Department of Low Temperature Physics, Faculty of Mathem- atics and Physics, Charles University Department II: Department of Physics, University of Trieste Supervisor I: prof. Miroslav Finger (Department I) Supervisor II: prof. Anna Martin (Department II) Abstract: The nucleon structure is presently described by Transverse Momentum Depend- ent (TMD) Parton Distribution Functions (PDFs), which generalise the collinear PDFs, adding partonic spin and transverse momentum degrees of freedom. The recent HERMES and COMPASS data on hadron production in deep inelastic scattering (SIDIS) of leptons off transversely polarised nucleons have provided a decisive validation of this framework. Nevertheless, the TMD PDFs should be studied in complementary reactions, like pp hard scattering and Drell-Yan pro- cesses. In particular the Sivers TMD PDF, which encodes the correlation between the nucleon transverse spin and quark transverse momentum and appears in the Sivers Transverse Spin Asymmetry (TSA), is expected to have opposite sign in Drell-Yan and SIDIS. In 2015 COMPASS measured for the first time the Drell- Yan process on a transversely polarised target π− p↑ → µ− µ+ X to test...Katedra fyziky nízkých teplotDepartment of Low Temperature PhysicsMatematicko-fyzikální fakultaFaculty of Mathematics and Physic
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