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Dissertations / Theses on the topic 'Leif Johansen'

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Published: 5 June 2025

Last updated: 16 July 2025

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1

Johannsen, Sven Leif Erik [Verfasser]. "Die Entwicklung der Teilnahmelehre in der Rechtsprechung. / Sven Leif Erik Johannsen." Berlin : Duncker & Humblot, 2009. http://d-nb.info/1238362907/34.

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2

Lei, Lei [Verfasser], Johann Peter [Akademischer Betreuer] Plank, Anton [Akademischer Betreuer] Lerf, and Karl-Christian [Akademischer Betreuer] Thienel. "A Comprehensive Study of Interactions Occurring Between Superplasticizers and Clays, and Superplasticizers and Cement / Lei Lei. Betreuer: Johann Peter Plank. Gutachter: Anton Lerf ; Johann Peter Plank ; Karl-Christian Thienel." München : Universitätsbibliothek der TU München, 2016. http://d-nb.info/1098428706/34.

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3

Schütt, Denise [Verfasser], Leif-Alexander [Akademischer Betreuer] Garbe, and Johannes [Akademischer Betreuer] Bader. "Analytik und Transformation von Flavonoiden durch anaerobe und aerobe Bakterien / Denise Schütt. Gutachter: Leif-Alexander Garbe ; Johannes Bader. Betreuer: Leif-Alexander Garbe." Berlin : Technische Universität Berlin, 2014. http://d-nb.info/106738748X/34.

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4

Braumüller, Markus Johannes [Verfasser]. "Towards an artificial leaf – development of immobilizable photocatalysts / Markus Johannes Braumüller." Ulm : Universität Ulm, 2017. http://d-nb.info/112364618X/34.

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5

Schönlein, Markus Philipp [Verfasser], Johann P. [Akademischer Betreuer] Plank, Johann P. [Gutachter] Plank, and Anton [Gutachter] Lerf. "Investigations on the very first nucleation and growth of early cement hydrate phases / Markus Philipp Schönlein ; Gutachter: Johann P. Plank, Anton Lerf ; Betreuer: Johann P. Plank." München : Universitätsbibliothek der TU München, 2019. http://d-nb.info/119291158X/34.

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6

Meier, Markus Rainer [Verfasser], Johann Peter [Akademischer Betreuer] [Gutachter] Plank, and Anton [Gutachter] Lerf. "Zementhydratation und Kristallisation von Ettringit unter Mikrogravitation in Gegenwart und Abwesenheit von Polycarboxylat-Fließmitteln / Markus Rainer Meier. Betreuer: Johann Peter Plank. Gutachter: Anton Lerf ; Johann Peter Plank." München : Universitätsbibliothek der TU München, 2016. http://d-nb.info/1105646769/34.

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7

Zou, Nan [Verfasser], Johann Peter [Akademischer Betreuer] Plank, and Anton [Akademischer Betreuer] Lerf. "Interkalation der Enzyme Papain und Cellulase sowie von Graphenoxid in Hydrotalcit- und Hydrocalumit-artige Schichtstrukturen (LDHs) / Nan Zou. Gutachter: Anton Lerf ; Johann Peter Plank. Betreuer: Johann Peter Plank." München : Universitätsbibliothek der TU München, 2014. http://d-nb.info/1058214314/34.

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8

Engbert, Alexander [Verfasser], Johann [Akademischer Betreuer] Plank, Thomas [Gutachter] Brück, Josef [Gutachter] Felixberger, Johann [Gutachter] Plank, and Anton [Gutachter] Lerf. "Ersatz von Lithiumcarbonat als Beschleuniger für Calciumaluminatzemente: Untersuchungen zur Wirkung und Aufklärung des Mechanismus von beschleunigenden Biopolymeren / Alexander Engbert ; Gutachter: Thomas Brück, Josef Felixberger, Johann Plank, Anton Lerf ; Betreuer: Johann Plank." München : Universitätsbibliothek der TU München, 2021. http://d-nb.info/1233784102/34.

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9

Kanchanason, Vipasri [Verfasser], Johann P. [Akademischer Betreuer] Plank, Johann P. [Gutachter] Plank, and Anton [Gutachter] Lerf. "A Comprehensive Study on Calcium Silicate Hydrate – Polycarboxylate Superplasticizer (C-S-H – PCE) Nanocomposites as Accelerating Admixtures in Cement / Vipasri Kanchanason ; Gutachter: Johann P. Plank, Anton Lerf ; Betreuer: Johann P. Plank." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1207074845/34.

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10

Casemiro, Renato. "Consonâncias planetárias: apresentação e fundamentação da terceira lei do movimento planetário no livro V do Harmonices Mundi (1619) de Johannes Kepler (1571 1630)." Pontifícia Universidade Católica de São Paulo, 2007. https://tede2.pucsp.br/handle/handle/13373.

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Made available in DSpace on 2016-04-28T14:16:30Z (GMT). No. of bitstreams: 1 Renato Casemiro.pdf: 775370 bytes, checksum: 99f913ff4cc21605f5b50d04a2c907bb (MD5) Previous issue date: 2007-10-24<br>Fundo de Apoio à Pesquisa do Estado de São Paulo<br>One of the meanings of the word consonant is harmony. Harmony, in a mathematical context, refers to proportion, order and symmetry. In a musical context, harmony indicates a logical succession of the sounds. In a spiritual context, it denotes an approach to the divine, peace. Johannes Kepler´s work Harmonices mundi (1619) presents a harmonious composition of these three contexts set in the astronomical scene of the seventeenth century. In this book Kepler shows the existing mathematical relation between the planets periods of revolution and their respective distances from the Sun or as we know at the present time, the third law of the planetary motion, harmonic law, or Kepler s third law. Based on his own previous conclusions, essentially the ones published in Mysterium Cosmographicum (1596), and on the hypothesis of a relationship between the musical note frequency and the velocities of the planets in its orbits, Kepler made use of a theoretical structure typical of his period, which includes the Pythagoras mystics, the Platonic philosophy, the Euclidian geometry, the Ptolemaic music theory, and the Copernican heliocentricism. The aim of this dissertation is to examine the theoretical and epistemological basis used by Kepler on the development of the harmonic law , and to discuss its significance in the keplerian cosmology and for the astronomy of the period<br>Um dos significados da palavra consonância é harmonia. Harmonia, no contexto matemático, remete-se a proporção, ordem e simetria. No contexto musical, harmonia indica uma sucessão lógica dos sons. No contexto espiritual, denota aproximação com o divino, paz. A obra de Johannes Kepler (1571 1630), Harmonices mundi (1619), é uma composição harmoniosa destes três contextos aplicados ao cenário astronômico do século XVII. É neste livro que Kepler apresenta a relação matemática existente entre os períodos de revolução dos planetas e suas respectivas distâncias em relação ao Sol ou como conhecemos nos dias atuais, terceira lei do movimento planetário, lei harmônica ou terceira lei de Kepler. Baseando-se em suas conclusões anteriores, principalmente as que foram publicadas no Mysterium Cosmographicum (1596), e na hipótese de uma ligação entre as freqüências das notas musicais e as velocidades assumidas pelos planetas ao longo de suas trajetórias, Kepler utilizou-se de um arcabouço teórico característicos de sua época: a mística pitagórica, a filosofia platônica, a geometria euclidiana, a teoria musical de Ptolomeu e o heliocentrismo de Copérnico. O objetivo desta dissertação é examinar a fundamentação teórica e epistemológica empregada por Kepler na elaboração da lei harmônica , bem como discutir sua relevância na cosmologia kepleriana e para a astronomia da época

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11

Liu, Haitao [Verfasser], Johannes [Akademischer Betreuer] [Gutachter] Schnyder, and Thorsten [Gutachter] Grams. "Effects of vapor pressure deficit, nitrogen fertilizer and leaf turnover on the oxygen isotope composition of cellulose in leaves of a perennial C₄ grass (Cleistogenes squarrosa) / Haitao Liu ; Gutachter: Thorsten Grams, Johannes Schnyder ; Betreuer: Johannes Schnyder." München : Universitätsbibliothek der TU München, 2017. http://d-nb.info/1128819406/34.

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12

Habbaba, Ahmad [Verfasser], Johann Peter [Akademischer Betreuer] Plank, Anton [Akademischer Betreuer] Lerf, and Detlef [Akademischer Betreuer] Heinz. "A Comprehensive Study on Multiple Phenomena Originating From Sulfate Ions Which Influence the Dispersing Mechanism of Polycarboxylate Based Superplasticizers in Cementitious Systems / Ahmad Habbaba. Gutachter: Anton Lerf ; Johann Peter Plank ; Detlef Heinz. Betreuer: Johann Peter Plank." München : Universitätsbibliothek der TU München, 2013. http://d-nb.info/1031756639/34.

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13

Rong, Xing. "A Comparative Study of Polyphonic Techniques in Chang-Lei Zhu's Ballade for Solo Piano." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1538807/.

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In Chinese contemporary piano music, large-scale piano compositions featuring innovative polyphonic musical languages are rarely found. Chang-Lei Zhu's Ballade for Solo Piano represents his development of contrapuntal techniques passed on from J. S. Bach and Dmitri Shostakovich in their polyphonic works for solo keyboard or piano. This study focuses on an analysis of Zhu's Ballade as an idiosyncratic composition that makes a significant contribution to the Chinese contemporary piano music repertory. Comparative analysis is made of Zhu's Ballade and J.S. Bach's Well-Tempered Clavier Books 1 and 2, as well as Dmitri Shostakovich's 24 Preludes and Fugues for Solo Piano, Op. 87. Zhu, a living Chinese composer born in 1976, uniquely writes the twenty variations of his Ballade based on the opening theme, a single melody in ten subphrases. This research lays out the close relationship of the opening theme with twenty variations in the Ballade. This study also illustrates how Zhu is an innovative voice in Chinese contemporary piano music literature. This comparative study constitutes the first scholarly study of Zhu's Ballade. Chapter 1 is an introduction to my comparative study. In chapter 2, comparisons on selected excerpts are conducted between Zhu's Ballade and J.S. Bach's WTC, Books 1 and 2, as well as Dmitri Shostakovich's Op. 87. Taking into consideration the pedagogical function of the Ballade, this study includes how the work can be used in Zhu's Ballade in piano pedagogy as an addition in chapter 3.

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14

Ferrari, Lucia [Verfasser], Johann Peter [Akademischer Betreuer] Plank, Anton [Akademischer Betreuer] Lerf, and Sevil [Akademischer Betreuer] Weinkauf. "Interaction of PCE polyelectrolytes with cement mineral surfaces: a study from the macro to the nano-scale / Lucia Ferrari. Gutachter: Anton Lerf ; Sevil Weinkauf. Betreuer: Johann Peter Plank." München : Universitätsbibliothek der TU München, 2011. http://d-nb.info/101958954X/34.

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15

Fragstein, und Niemsdorff Paul-Albin Maximilian von [Verfasser], Teja [Akademischer Betreuer] Tscharntke, Stefan [Akademischer Betreuer] Schütz, and Johannes [Akademischer Betreuer] Steidle. "Tritrophic interactions between Populus tremula, leaf beetles and their natural enemies - from the field to the laboratory / Paul-Albin Maximilian von Fragstein und Niemsdorff. Gutachter: Teja Tscharntke ; Stefan Schütz ; Johannes Steidle. Betreuer: Teja Tscharntke." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2011. http://d-nb.info/104424884X/34.

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16

Berone, Germán [Verfasser], Johannes [Akademischer Betreuer] Schnyder, and Rainer [Akademischer Betreuer] Matyssek. "The role of photosynthetic capacity and of leaf area ratio for the carbon gain of C3 and C4 species during the cool season in the Río de la Plata grasslands / Germán Berone. Gutachter: Rainer Matyssek. Betreuer: Johannes Schnyder." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/1019589566/34.

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17

Niemann, Nicolaas Johannes Jacobus. "Molecular characterisation of the causal agent of bacterial leaf streak of maize / Nicolaas Johannes Jacobus Niemann." Thesis, 2015. http://hdl.handle.net/10394/15478.

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All members of the genus Xanthomonas are considered to be plant pathogenic, with specific pathovars infecting several high value agricultural crops. One of these pathovars, X. campestris pv. zeae (as this is only a proposed name it will further on be referred to as Xanthomonas BLSD) the causal agent of bacterial leaf steak of maize, has established itself as a widespread significant maize pathogen within South Africa. Insufficient information about the present distribution of the pathogen is available. The main aim of the study was thus to isolate and characterise the pathogen using molecular methods. Results demonstrated that the causal agent of bacterial leaf streak disease (Xanthomonas BLSD: potentially X. campestris pv. zeae) was widely distributed within the major maize cultivation regions of South Africa. Most of the isolates collected originated from the Highveld maize production provinces (North West, Free State, Gauteng and Mpumalanga provinces) as well as from irrigated maize fields in the Northern Cape province. The XgumD gene marker was used to determine if the isolates belonged to the genus Xanthomonas. The gumD gene fragment is located within the gumB-gumM region of the operon and is conserved among Xanthomonas species. This gene fragment is partially responsible for xanthan production. This marker was amplified from all isolates and a selected number were sequenced. The marker was only able to confirm that the causal agent was a member of the genus Xanthomonas. PCR methods were used for the characterisation of the isolates. This included PCR and sequencing of ribosomal RNA- gyraseB and gumD genes. A fingerprinting method BOX-PCR was also employed. Good quality DNA of sufficient quantities was obtained from the various isolates. Amplification produced no non-specific amplification products. This resulted in good quality sequences that could be analysed using bioinformatics tools. Phylogenetic analyses of the ribosomal RNA and gyraseB genes could not detect differences amongst the 47 Xanthomonas BLSD isolates. However, these genes were able to distinguish between the type strain of these isolates and various Xanthomonas species and pathovars. From all three neighbour joining trees the Xanthomonas BLSD isolates had close association with X. axonopodis pv. vasculorum strain ATCC 35938. For the 16S rRNA gene there exists no sequence differences between Xanthomonas BLSD and X. axonopodis pv. vasculorum strain ATCC 35938. A single nucleotide difference was observed between Xanthomonas BLSD and X. axonopodis pv. vasculorum strain ATCC 35938 for the 23S rRNA gene. The gyraseB gene detected a total of six nucleotide variations between these two Xanthomonas species. For all of the phylogenetic trees there was no clustering of Xanthomonas BLSD with X. campestris pathovars. Genetic profiling (via BOX-PCR) based on present/absent analysis revealed no variations amongst the Xanthomonas BLSD isolates. All isolates shared an identical pattern produced by 12 distinct PCR products. This profiling technique did differentiate between the isolates of Xanthomonas BLSD and X. axonopodis pv. vasculorum strain ATCC 35938. Their profiles shared common bands, but differed in the number and overall pattern of the bands. These results suggest two main conclusions: (i) Xanthomonas BLSD has a clonal origin with geographical separation not impacting genetic variation. The fact that all the isolates appear to be clonal may imply that when resistant maize cultivars are developed these should be resistant to all isolates of the pathovar irrespective of their geographical origin. This is a suggestion that will have to be corroborated using more isolates and additional genetic fingerprinting techniques (ii) the Xanthomonas BLSD isolates from this study may not belong to X. campestris. Further studies using other markers should be conducted to determine the real identity of Xanthomonas BLSD.<br>MSc Environmental Sciences, North-West University, Potchefstroom Campus, 2015

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