HistStadt4D – A four dimensional access to history

Purpose – We propose a multidisciplinary approach based on an extensive data base which provides digitalized photographic material from the end of the 19th century up to recent times. Thus a large amount of photographic evidence will be exploited, structured and enriched by additional sources to serve as a foundation for an application relying on 3D visualizations. The application addresses scholars as well as the general public and will provide different kinds of information and tools for research and knowledge transfer. Design/methodology/approach – The method applied will be diachronic: the virtual model may show one point in urban history depicting a certain state of past Dresden and also its development through the various eras. In addition the method works in a dualistic mode: on the one hand the physical development of the urban area will be explored and presented in detail, on the other hand the analysis of the pictures will give profound insights in the specific perception of the urban space. Originality/value – This methodology aims to make large repositories more accessible and proactive in information-seeking. Using a 3D application as an access for media repositories, research tools and functionalities which can improve the scientific handling of the data will be considered. How should the data and information be processed to meet the researcher’s needs? Which information can be retrieved from the visual media? What needs to be considered to ensure scientific standards and motivation while working with the image repositories? Users of the virtual archives can benefit extensively form effective searching functions and tools which work not only content- and theme-based but also location-based. Practical implications – The outcomes of the research will be presented in a 4D browser and available in an Augmented Reality presentation. The design will comply with the requirements of the field of application, whether aiming at a scientific, educative or touristic purpose. The paper itself considers three different approaches to the topic highlighting the multidisciplinary strategy and opportunities of the project. The first one considers research questions from art history. The second one reflects on concepts from information science, photogrammetry and computer vision for visualizations and the third one introduces an interaction concept for an AR application for the Zwinger in Dresden

'Dresdner Stadtgeschichte 3D'

The increasing awareness of the opportunities and possibilities of digitization in research and industry brings increased demands on graduates. The fact that digital resources are now cumulatively playing a role in the humanities and social sciences also necessitates the networking of various specialist disciplines. Cross-disciplinary project work, however, has its own challenges due to different subject cultures, perspectives and working methods. In order to adequately prepare students for these hurdles, the TU Dresden and the HTW Dresden (University of Applied Sciences) carried out a joint teaching project called “Dresdner Stadtgeschichte 3D”. Potentials and challenges were collected and analysed in a mixed method procedure in order to subsequently formulate didactic-conceptual implications

Novel Approaches to research and discover Urban History

Photographs and plans are an essential source for historical research (Münster, Kamposiori, Friedrichs, & Kröber, 2018) and key objects in Digital Humanities (Kwastek, 2014). Numerous digital image archives, containing vast numbers of photographs, have been set up in the context of digitization projects. These extensive repositories of image media are still difficult to search. It is not easy to identify sources relevant for research, analyze and contextualize them, or compare them with the historical original. The eHumanities research group HistStadt4D, funded by the German Federal Ministry of Education and Research (BMBF) until July 2020 consists of 14 people – including 4 post-doctoral and 5 PhD researchers. Since a focal interest is to comprehensively investigate how to enhance accessibility of large scale image repositories, researchers and research approaches originate from the humanities, geoand information technologies as well as from educational and information studies. In contrast to adjacent projects dealing primarily with large scale linked text data as the Venice Time Machine project (“The Venice Time Machine,” 2017), sources addressed by the junior group are primarily historical photographs and plans. Historical media and their contextual information are being transferred into a 4D – 3D spatial and temporal scaled - model to support research and education on urban history. Content will be made accessible in two ways; via a 4D browser and a location-dependent augmented-reality representation. The prototype database consists of about 200,000 digitized historical photographs and plans of Dresden from the Deutsche Fotothek (“Deutsche Fotothek,”)

„Altes und Neues verknüpft, so dass das eine aus dem anderen organisch erwächst und alles als Naturnothwendigkeit erscheint“ – Sempers Antikensäle im Japanischen Palais in Dresden‐Neustadt

Tiefes Rot und kräftiges Schwarz, zarte Genien und filigrane Ranken – so präsentierten sich die einst vollständig ausgemalten Säle der Dresdner Antikensammlung im Japanischen Palais. Viel ist von den prächtigen Räumen nicht erhalten, waren doch auch sie von den schweren Zerstörungen des Bauwerks im Zweiten Weltkrieg betroffen. Dennoch: Sie gehören zu den ausgesprochen wenigen originalen Schaffenszeugnissen des berühmten Architekten Gottfried Semper, die auf uns gekommen sind

Court Chapels in Saxony between 1697 and 1733: Augustus II the Strong between Catholicism and Protestantism

When Augustus II the Strong (1670–1733) converted from the Protestant to the Catholic confession, he guaranteed his subjects – all Lutheran – the free exercise of their religion and belief. He also respected their wish not to allow the ‘new’ old confession emerge too overtly in the motherland of Martin Luther and the Reformation. Consequently, the Catholic chapels he built during his reign in Saxony were constructed in private in order to assure the peaceful co-existence of the confessions. What may appear to be a tolerant religious policy was in fact almost the contrary: This article will briefly illuminate the historical and political background of Augustus’ decisions, while the main focus will be to examine the newly installed Catholic court chapels

HistStadt4D – A four dimensional access to history

Purpose – We propose a multidisciplinary approach based on an extensive data base which provides digitalized photographic material from the end of the 19th century up to recent times. Thus a large amount of photographic evidence will be exploited, structured and enriched by additional sources to serve as a foundation for an application relying on 3D visualizations. The application addresses scholars as well as the general public and will provide different kinds of information and tools for research and knowledge transfer. Design/methodology/approach – The method applied will be diachronic: the virtual model may show one point in urban history depicting a certain state of past Dresden and also its development through the various eras. In addition the method works in a dualistic mode: on the one hand the physical development of the urban area will be explored and presented in detail, on the other hand the analysis of the pictures will give profound insights in the specific perception of the urban space. Originality/value – This methodology aims to make large repositories more accessible and proactive in information-seeking. Using a 3D application as an access for media repositories, research tools and functionalities which can improve the scientific handling of the data will be considered. How should the data and information be processed to meet the researcher’s needs? Which information can be retrieved from the visual media? What needs to be considered to ensure scientific standards and motivation while working with the image repositories? Users of the virtual archives can benefit extensively form effective searching functions and tools which work not only content- and theme-based but also location-based. Practical implications – The outcomes of the research will be presented in a 4D browser and available in an Augmented Reality presentation. The design will comply with the requirements of the field of application, whether aiming at a scientific, educative or touristic purpose. The paper itself considers three different approaches to the topic highlighting the multidisciplinary strategy and opportunities of the project. The first one considers research questions from art history. The second one reflects on concepts from information science, photogrammetry and computer vision for visualizations and the third one introduces an interaction concept for an AR application for the Zwinger in Dresden

'Dresdner Stadtgeschichte 3D'

The increasing awareness of the opportunities and possibilities of digitization in research and industry brings increased demands on graduates. The fact that digital resources are now cumulatively playing a role in the humanities and social sciences also necessitates the networking of various specialist disciplines. Cross-disciplinary project work, however, has its own challenges due to different subject cultures, perspectives and working methods. In order to adequately prepare students for these hurdles, the TU Dresden and the HTW Dresden (University of Applied Sciences) carried out a joint teaching project called “Dresdner Stadtgeschichte 3D”. Potentials and challenges were collected and analysed in a mixed method procedure in order to subsequently formulate didactic-conceptual implications

Novel Approaches to research and discover Urban History

Photographs and plans are an essential source for historical research (Münster, Kamposiori, Friedrichs, & Kröber, 2018) and key objects in Digital Humanities (Kwastek, 2014). Numerous digital image archives, containing vast numbers of photographs, have been set up in the context of digitization projects. These extensive repositories of image media are still difficult to search. It is not easy to identify sources relevant for research, analyze and contextualize them, or compare them with the historical original. The eHumanities research group HistStadt4D, funded by the German Federal Ministry of Education and Research (BMBF) until July 2020 consists of 14 people – including 4 post-doctoral and 5 PhD researchers. Since a focal interest is to comprehensively investigate how to enhance accessibility of large scale image repositories, researchers and research approaches originate from the humanities, geoand information technologies as well as from educational and information studies. In contrast to adjacent projects dealing primarily with large scale linked text data as the Venice Time Machine project (“The Venice Time Machine,” 2017), sources addressed by the junior group are primarily historical photographs and plans. Historical media and their contextual information are being transferred into a 4D – 3D spatial and temporal scaled - model to support research and education on urban history. Content will be made accessible in two ways; via a 4D browser and a location-dependent augmented-reality representation. The prototype database consists of about 200,000 digitized historical photographs and plans of Dresden from the Deutsche Fotothek (“Deutsche Fotothek,”)

End-Tidal CO2 Predicts Reduction in Mitral Regurgitation in Patients Undergoing Percutaneous Mitral Valve Edge-to-Edge Repair

Objectives: We evaluated end-tidal CO2 (etCO(2)), which has been proposed to assess acute hemodynamic changes, to guide percutaneous edge-to-edge mitral valve repair (PMVR) with the MitraClip system. Methods: Thirty-nine patients (aged 78 +/- 14 years) undergoing PMVR for moderate-to-severe mitral regurgitation (MR) of primary and secondary etiology were included. General anesthesia was maintained with sevoflurane and constant ventilation parameters to ensure stable etCO(2) tension. MR grade was determined semi-quantitatively by transesophageal echocardiography by 2 experienced operators blinded to etCO(2) measurements. etCO(2) levels were measured 3, 5, 10, and 15 min after final MitraClip placement. Results: Overall, etCO(2) increased from 32.2 +/- 1.7 before to 35.4 +/- 3.0, 34.6 +/- 2.6, and 34.2 +/- 2.4 mm Hg 3, 5, and 10 min after implantation. A significant correlation was noted between the echocardiographic reduction in MR grade and the increase in etCO(2). ANOVA for repeated measures confirmed a significant increase in etCO(2) after clip implantation corrected F = 20.0; p < 0.001) and revealed a significantly greater increase in etCO2 in patients with MR reduction = 2 grades as compared to lesser MR reductions (F = 6.47; p = 0.015). Blood pressure changes did not correlate with the degree of MR reduction. Conclusions: We observed a close correlation between the reduction in MR grade during PMVR and etCO(2), which might evolve as a useful parameter to complement treatment guidance during PMVR. (C) 2017 S. Karger AG, Base