Das Erwachen der philosophischen Spekulation der Reformationszeit, in ihrem stufenweisen Fortschreiten beleuchtet an Schwenkfeld, Thamer, Sebastian Franck von Word.

Thesis (doctoral)--Friedrich-Alexanders-Universitat Erlangen.

The music master; the story of Johann Sebastian Bach.

Mode of access: Internet.

Flugblätter des Sebastian Brant,

Issued in portfolio.

Fabrication, Optical Analysis and Photonic Applications of Certain Metallic Nanostructure-Integrated Dye Doped Polymer Optical Fibers” submitted by Ms. Suneetha Sebastian

Polymer Optical Fibers have occupied historically a place for large core flexible fibers operating in short distances. In addition to their practical passive application in short-haul communication they constitute a potential research field as active devices with organic dopants. Organic dyes are preferred as dopants over organic semiconductors due to their higher optical cross section. Thus organic dyes as gain media in a polymer fiber is used to develop efficient and narrow laser sources with a tunability throughout the visible region or optical amplifier with high gain. Dyes incorporated in fiber form has added advantage over other solid state forms such as films since the pump power required to excite the molecules in the core of the fiber is less thereby utilising the pump power effectively. In 1987, Muto et.al investigated a dye doped step index polymer fiber laser. Afterwards, numerous researches have been carried out in this area demonstrating laser emission from step index, graded index and hollow optical fibers incorporating various dyes. Among various dyes, Rhodamine6G is the most widely and commonly used laser dye for the last four decades. Rhodamine6G has many desirable optical properties which make it preferable over other organic dyes such as Coumarin, Nile Blue, Curcumin etc. The research focus on the implementation of efficient fiber lasers and amplifiers for short fiber distances. Developing efficient plastic lasers with electrical pumping can be a new proposal in this field which demands lowest possible threshold pump energy of the gain medium in the cavity as an important parameter. One way of improving the efficiency of the lasers, through low threshold pump energy, is by modifying the gain of the amplifiers in the resonator/cavity. Success in the field of Radiative Decay Engineering can pave way to this problem. Laser gain media consisting of dye-nanoparticle composites can improve the efficiency by lowering the lasing threshold and enhancing the photostability. The electric field confined near the surface of metal nanoparticles due to Localized Surface Plasmon Resonance can be very effective for the excitation of active centers to impart high optical gain for lasing. Since the Surface Plasmon Resonance of nanoparticles of gold and silver lies in the visible range, it can affect the spectral emission characteristics of organic dyes such as Rhodamine6G through plasmon field generated by the particles. The change in emission of the dye placed near metal nanoparticles depend on plasmon field strength which in turn depends on the type of metal, size of nanoparticle, surface modification of the particle and the wavelength of incident light. Progress in fabrication of different types of nanostructures lead to the advent of nanospheres, nanoalloys, core-shell and nanowires to name a few. The thesis deals with the fabrication and characterisation of polymer optical fibers with various metallic and bimetallic nanostructures incorporated in the gain media for efficient fiber lasers with low threshold and improved photostability.

Elisabeth Baum / Till-Sebastian Idel / Heiner Ullrich (Hrsg.): Kollegialität und Kooperation in der Schule. Theoretische Konzepte und empirische Befunde. Wiesbaden: Springer VS 2012 (207 S.) [Rezension]

Rezension von: Elisabeth Baum / Till-Sebastian Idel / Heiner Ullrich (Hrsg.): Kollegialität und Kooperation in der Schule. Theoretische Konzepte und empirische Befunde. Wiesbaden. Springer VS 2012 (207 S.; ISBN 978-3-531-18104-2)

Un acercamiento al miedo al delito, la percepción de inseguridad y el diseño del espacio en Donostia-San Sebastian

El contenido del presente trabajo, se ha realizado tomando como base tanto la evidencia empírica como la literatura que hay sobre el fenómeno del miedo al delito y la percepción de inseguridad ligada a la estructura y al diseño ambiental de una ciudad, o en cómo está ha sido configurada. Del mismo modo, analizar aquellos elementos de índole social que intervienen en toda esta dinámica de construcción de ciudad y vida en las calles, así como de la manera en la que todo lo anterior influye en las decisiones de actuación y uso del espacio urbano de los miembros de una sociedad. El objetivo de todo este entramado tan complicado -dadas sus variabilidades o dada la casuística en la materia-, es ofrecer un acercamiento al tema del miedo al delito y a la percepción de inseguridad ciudadana desde distintos enfoques, así como dar a relucir los resultados recogidos de la encuesta de percepción de inseguridad en algunos barrios de Donostia – San Sebastián, durante el mes de febrero y marzo de 2016. Todo ello con el fin de ilustrar las posibles diferencias de género en esta cuestión, lo que a su vez ha permito llevar a cabo un pequeño acercamiento a la dinámica de trabajo de un estudio empírico.

La violencia contra la pareja o expareja mujer: un estudio de la variable de la nacionalidad en la base de datos de la Guardia Municipal de Donostia/San Sebastian

[ES]Este Trabajo de Fin de Grado (TFG) está relacionado con las prácticas efectuadas en la Guardia Municipal de San Sebastián (País Vasco) y pretende analizar las órdenes de protección concedidas a víctimas de violencia de género inmigrantes y nacionales para comprobar si existe alguna diferencia en cuanto a su aplicación. Asimismo, se pretende analizar el procedimiento efectuado por este cuerpo policial y servicios sociales en estos casos, así como el perfil de la víctima y el agresor. Por otra parte, se procura analizar aspectos controvertidos de la Ley Orgánica 1/2004 de Medidas de Protección Integral de la Violencia de Género. Para ello, se utilizara una metodología mixta. Por una parte de corte cualitativo realizando cuatro entrevistas (a dos víctimas, una agente de policía y una trabajadora social) para ahondar más respecto a este tema. En segundo lugar, desde una perspectiva cuantitativa se explorará la base de datos de la Guardia Municipal en materia de violencia de género para realizar un análisis estadístico. Finalmente, se abordaran las conclusiones a las que se ha llegado con este trabajo y se propondrán mejoras de cara a futuras investigaciones y a la operatividad de la Guardia Municipal.

What Is The Best Indication For Single-incision Ophira Mini Sling? Insights From A 2-year Follow-up International Multicentric Study.

The Ophira Mini Sling System involves anchoring a midurethral, low-tension tape to the obturator internus muscles bilaterally at the level of the tendinous arc. Success rates in different subsets of patients are still to be defined. This work aims to identify which factors influence the 2-year outcomes of this treatment. Analysis was based on data from a multicenter study. Endpoints for analysis included objective measurements: 1-h pad-weight (PWT), and cough stress test (CST), and questionnaires: International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF) and Urinary Distress Inventory (UDI)-6. A logistic regression analysis evaluated possible risk factors for failure. In all, 124 female patients with stress urinary incontinence (SUI) underwent treatment with the Ophira procedure. All patients completed 1 year of follow-up, and 95 complied with the 2-year evaluation. Longitudinal analysis showed no significant differences between results at 1 and 2 years. The 2-year overall objective results were 81 (85.3%) patients dry, six (6.3%) improved, and eight (8.4%) incontinent. A multivariate analysis revealed that previous anti-incontinence surgery was the only factor that significantly influenced surgical outcomes. Two years after treatment, women with previous failed surgeries had an odds ratio (OR) for treatment failure (based on PWT) of 4.0 [95% confidence interval (CI) 1.02-15.57). The Ophira procedure is an effective option for SUI treatment, with durable good results. Previous surgeries were identified as the only significant risk factor, though previously operated patients showed an acceptable success rate.

Bone Marrow Concentrate and Bovine Bone Mineral for Sinus Floor Augmentation: A Controlled, Randomized, Single-Blinded Clinical and Histological Trial-Per-Protocol Analysis

Purpose: The purpose of this work was to evaluate the potential of substituting autogenous bone (AB) by bone marrow aspirate concentrate (BMAC). Both AB and BMAC were tested in combination with a bovine bone mineral (BBM) for their ability of new bone formation (NBF) in a multicentric, randomized, controlled, clinical and histological noninferiority trial. Materials and Methods: Forty-five severely atrophied maxillary sinus from 26 patients were evaluated in a partial cross-over design. As test arm, 34 sinus of 25 patients were augmented with BBM and BMAC containing mesenchymal stem cells. Eleven control sinus from 11 patients were augmented with a mixture of 70% BBM and 30% AB. Biopsies were obtained after a 3-4-month healing period at time of implant placement and histomorphometrically analyzed for NBF. Results: NBF was 14.3%+/- 1.8% for the control and nonsignificantly lower (12.6%+/- 1.7%) for the test (90% confidence interval: -4.6 to 1.2). Values for BBM (31.3%+/- 2.7%) were significantly higher for the test compared with control (19.3%+/- 2.5%) (p < 0.0001). Nonmineralized tissue was lower by 3.3% in the test compared with control (57.6%; p = 0.137). Conclusions: NBF after 3-4 months is equivalent in sinus, augmented with BMAC and BBM or a mixture of AB and BBM. This technique could be an alternative for using autografts to stimulate bone formation.

Connectivity and dynamics of neuronal networks as defined by the shape of individual neurons

Biological neuronal networks constitute a special class of dynamical systems, as they are formed by individual geometrical components, namely the neurons. In the existing literature, relatively little attention has been given to the influence of neuron shape on the overall connectivity and dynamics of the emerging networks. The current work addresses this issue by considering simplified neuronal shapes consisting of circular regions (soma/axons) with spokes (dendrites). Networks are grown by placing these patterns randomly in the two-dimensional (2D) plane and establishing connections whenever a piece of dendrite falls inside an axon. Several topological and dynamical properties of the resulting graph are measured, including the degree distribution, clustering coefficients, symmetry of connections, size of the largest connected component, as well as three hierarchical measurements of the local topology. By varying the number of processes of the individual basic patterns, we can quantify relationships between the individual neuronal shape and the topological and dynamical features of the networks. Integrate-and-fire dynamics on these networks is also investigated with respect to transient activation from a source node, indicating that long-range connections play an important role in the propagation of avalanches.

TESTING STATISTICAL HYPOTHESIS ON RANDOM TREES AND APPLICATIONS TO THE PROTEIN CLASSIFICATION PROBLEM

Efficient automatic protein classification is of central importance in genomic annotation. As an independent way to check the reliability of the classification, we propose a statistical approach to test if two sets of protein domain sequences coming from two families of the Pfam database are significantly different. We model protein sequences as realizations of Variable Length Markov Chains (VLMC) and we use the context trees as a signature of each protein family. Our approach is based on a Kolmogorov-Smirnov-type goodness-of-fit test proposed by Balding et at. [Limit theorems for sequences of random trees (2008), DOI: 10.1007/s11749-008-0092-z]. The test statistic is a supremum over the space of trees of a function of the two samples; its computation grows, in principle, exponentially fast with the maximal number of nodes of the potential trees. We show how to transform this problem into a max-flow over a related graph which can be solved using a Ford-Fulkerson algorithm in polynomial time on that number. We apply the test to 10 randomly chosen protein domain families from the seed of Pfam-A database (high quality, manually curated families). The test shows that the distributions of context trees coming from different families are significantly different. We emphasize that this is a novel mathematical approach to validate the automatic clustering of sequences in any context. We also study the performance of the test via simulations on Galton-Watson related processes.