bluuebunny/crossref_metadata_2025 huggingface dataset:
HANDHELD VOLUMETRIC SCANNER FOR 3D PRINTED INTEGRATIONS OF HISTORICAL ELEMENTS: COMPARISON AND RESULTS
Authors: De Luca D. , Del Giudice M. , Grasso N. , Matrone F. , Osello A. , Piras M.
Published: August 2019

Abstract. The latest technologies in the field of geomatics and additive manufacturing can provide a significant support to the restoration and conservation activities of Cultural Heritage (CH). In particular, the recent developments for both the 3D scanning techniques and the 3D printing systems are able to speed up the survey and the reconstruction of historical fragments gone lost. This research compares different meshes, obtained with different instruments and techniques, in particular a medium and a short-range volumetric handheld camera, with the aim of evaluating the best solution for the 3D printing and provide some guidelines for this kind of operation. Therefore, the focus is mainly on identifying the most effective solution to describe, represent and subsequently model small architectural details in the most automatic way, in order to step from the survey to the final printed result in the shortest time possible. Moreover, an attempt to integrate and complete not only sculptural details, by now well stated in the state of art, but also architectural elements, respecting the principles of reversibility and material recognisability typical of the modern restoration theories, has been done. The case study examined is an historical wooden gilded door with the lack of some decorative parts, in a church in the centre of Turin (Italy), symbol of the baroque architecture and damaged by a fire occurred during the Second World War.
HISTORICAL PHOTOS AND VISUALIZATIONS: POTENTIAL FOR RESEARCH
Authors: Dewitz L. , Kröber C. , Messemer H. , Maiwald F. , Münster S. , Bruschke J. , Niebling F.
Published: August 2019

Abstract. The interdisciplinary research group on four-dimensional research and communication of urban history (Urban History 4D) aims to investigate and develop methods and technologies to access extensive repositories of historical media and their contextual information in a spatial model, with an additional temporal component. This will make content accessible to different target groups, researchers and the public, via a 4D Browser and an Augmented Reality app for mobile devices. One goal is to improve the accessibility of media repositories and develop suitable solutions for data preparation and information research, making extensive use of visualizations. An interdisciplinary approach is taken to ensure that visualizations for research are comprehensible and meet scientific standards. The investigation of spatial visualizations of image repositories and their visual representation in a coherent context includes frequencies, directions, and perspectives within the image material, which can be grasped through quantitative methods. This paper introduces two main investigations into (1) quantitative data visualization with photography and (2) the plausibility and perception of 3D reconstructions.
IMPLEMENTATION OF SURVEY AND THREE-DIMENSIONAL MONITORING OF ARCHAEOLOGICAL EXCAVATIONS OF THE KHIRBAT AL-DUSAQ SITE, JORDAN
Authors: Alby E. , Vigouroux E. , Elter R.
Published: August 2019

Abstract. In this paper will be presented the use of photogrammetry integrated to the process of representation of an archaeological site. The Khirbat al-Dūsaq site, Jordan, is an architectural complex composed by three remaining buildings with different shapes and functions. The first one is a reception building name īwān. The second one is vaulted and its function has not been determined yet. The third is a bath with all the complexity that are required for such a function (multiple rooms and sequence of spaces). The site is being excavated and there remains unknown information archaeologists want to discover and represent. This project takes places after several years of collaboration on different other archaeological sites. During these different projects, methods of acquisition, processes and drawings at different places and stages have been developed and work methods that includes the use of photogrammetry are now integrated to the archaeological practices. There is now a need by archaeologists for ortho-photos to draw precise plans. The integration of photogrammetry into the practice of archaeology on site helps also to reduce the time consumption to survey and to represent excavation activity. The data sets obtained year after year can also be used as a support for 3D reconstruction. The 3D modelling stage begins by integrating the context represented here by 3D textured mesh produced during the process of ortho-photos. The integration of photogrammetry started in 2015 by acquiring pictures from bath building. This work had to be extended to the entire complex so that it has been decided to manage it, in a proper way. In 2016, a survey network has been implemented, and complete photogrammetric data set have been produced. At this time there was a photogrammetric survey reference for all the data sets of the site. Several years of survey means that the project has to adapt to its specific context. The site life during 11 months without archaeological preoccupations signifies that it is evolving, so that in 2017, ground points had disappeared. The possibility to geo-reference future data sets imposes to integrate targets on pictures from 2016 data set. The remaining building walls on site keep their shape enough to be integrated as constant structures over the years. At first it has been decided to integrate photogrammetry technic to the representation process of the Khirbat al-Dūsaq site. It has proved, by the precision and flexibility of processes that good quality representations could be produced and the 3D documentation could be used as a support of 3D reconstruction stage also. Photogrammetric documentation, as soon as it is properly managed over the years can thus be integrated in archaeologic practices and can help to reduce time consuming stages and propose other activity support as 3D reconstruction.
SPARSE POINT CLOUD FILTERING BASED ON COVARIANCE FEATURES
Authors: Farella E. M. , Torresani A. , Remondino F.
Published: August 2019

Abstract. This work presents an extended photogrammetric pipeline aimed to improve 3D reconstruction results. Standard photogrammetric pipelines can produce noisy 3D data, especially when images are acquired with various sensors featuring different properties. In this paper, we propose an automatic filtering procedure based on some geometric features computed on the sparse point cloud created within the bundle adjustment phase. Bad 3D tie points and outliers are detected and removed, relying on micro and macro-clusters analyses. Clusters are built according to the prevalent dimensionality class (1D, 2D, 3D) assigned to low-entropy points, and corresponding to the main linear, planar o scatter local behaviour of the point cloud. While the macro-clusters analysis removes smallsized clusters and high-entropy points, in the micro-clusters investigation covariance features are used to verify the inner coherence of each point to the assigned class. Results on heritage scenarios are presented and discussed.
GEOMETRIC FEATURES ANALYSIS FOR THE CLASSIFICATION OF CULTURAL HERITAGE POINT CLOUDS
Authors: Grilli E. , Farella E. M. , Torresani A. , Remondino F.
Published: August 2019

Abstract. In the last years, the application of artificial intelligence (Machine Learning and Deep Learning methods) for the classification of 3D point clouds has become an important task in modern 3D documentation and modelling applications. The identification of proper geometric and radiometric features becomes fundamental to classify 2D/3D data correctly. While many studies have been conducted in the geospatial field, the cultural heritage sector is still partly unexplored. In this paper we analyse the efficacy of the geometric covariance features as a support for the classification of Cultural Heritage point clouds. To analyse the impact of the different features calculated on spherical neighbourhoods at various radius sizes, we present results obtained on four different heritage case studies using different features configurations.
2D & 3D RECONSTRUCTION WORKFLOWS FROM ARCHIVE IMAGES, CASE STUDY OF DAMAGED MONUMENTS IN BOSRA AL-SHAM CITY (SYRIA)
Authors: Al Khalil O. , Grussenmeyer P.
Published: August 2019

Abstract. The paper explores the possibilities of using old images for 2D and 3D documentation of archaeological monuments using open source, free and commercial photogrammetric software. The available images represent the external façade of the Western gate and Al Omari Mosque in the city of Bosra al-Sham in Syria, which were severely damaged during the recent war. The images were captured using consumer camera and they were originally used to achieve 2D documentation for each part of the gate separately. 2D control points were used to scale the digital photomosaic and reference distances were applied for the scaling of the 3D models. Archive images were used to produce a 2D digital photomosaic of the monument by image rectification and 3D dense point clouds by applying Structure from Motion (SfM) techniques. The geometric accuracy of the results has been assessed.
DEVELOPING A MONITORING WORKFLOW FOR THE TEMPLES OF JAVA
Authors: Herbig U. , Stampfer L. , Grandits D. , Mayer I. , Pöchtrager M. ,   Ikaputra, Setyastuti A.
Published: August 2019

Abstract. Indonesia is rich in cultural diversity. Although Islam is the main religion, the most famous sites in Indonesia are the ancient temples (Candis) on Java and Bali. The Candis in Java represent a challenging ancient architectural heritage and are important features for the Javanese population to identify with their own culture, even today as the Buddhist and Hindu religions have almost disappeared from everyday life. The temples of Borobudur and Prambanan are on the UNESCO World Heritage List and are among Indonesia's most popular tourist destinations. In addition, there are numerous smaller temples and temple complexes for whose preservation is challenged by recurring earthquakes. Continuous monitoring of the monuments, especially with regard to structural stability, is therefore essential. In cooperation of the TU Wien with the Universitas Gadjah Mada, Yogyakarta and local authorities, a possible workflow for a future surveying and continuous monitoring of the monuments was tested. With the help of 3D laser scanning and photogrammetry the most reliable and economical method for the continuous observation of the temples shall be developed taking into account the local conditions. In a cooperation of lecturers of the participating universities and students, as well as experts of the responsible temple authority ten temples were measured in order to test the envisaged workflows and their reliability This paper shows the approach and exemplary results.
PUZZLING ENGINE: A DIGITAL PLATFORM TO AID THE REASSEMBLING OF FRACTURED FRAGMENTS
Authors: Hernandez R. D. L. , Vincke S. , Bassier M. , Mattheuwsen L. , Derdeale J. , Vergauwen M.
Published: August 2019

Abstract. The reassembling of fractured fragments is a paramount task in the fields of digital heritage documentation and reconstruction of archaeological artifacts and monuments. This process is typically carried out by manually puzzling matching clues such as decoration,shape, contour, etc. This labor poses a challenge for restorers as fractured fragments are fragile, deteriorated and in some cases bulky. In order to aid experts in this meticulous and time-consuming process, a puzzling engine is developed with the aim of providing the user with tools to facilitate the reassembling of 3D digital fractured fragments. The assisting tools that compose the puzzling engine include 3D manipulation, reference plane alignment, segmentation, and registration. Furthermore, a Virtual Reality (VR) environment is presented as an alternative matching tool. This allows the user to have an intuitive understanding of the fragments in terms of scale, texture, materials, etc., thus facilitating and speeding up the reassembling process. To show the potential of the proposed tool, the engine is tested by archaeologists not only to puzzle classical stone fragments but also to match deteriorated ancient Egyptian rock tomb blocks.
DISCRIMINATION OF CULTURAL RELICS SIMILARITY BASED ON PHASH
ALGORITHM AND SIFT OPERATOR
Authors: Hua W. , Hou M. , Yang S. , Dong Y.
Published: August 2019

Abstract. Among the immovable cultural relics such as grottoes, stone carvings of the same period usually show similar artistic styles and repetitive statues. Through the study of the similarity between cultural relics in the same period, we can have reference value for the historical significance, artistic characteristics and cultural relics restoration of cultural relics. The traditional discrimination of cultural relics similarity often depends on the subjective experience judgment of experts, which is time-consuming and inefficient. Often, different experts may issue different conclusions, the lack of convincing objective evaluation basis, can not provide effective scientific support for the protection and restoration of cultural relics. In order to provide objective criteria for evaluating the similarity of cultural relics and avoid the interference of human factors, this paper proposes the concept of similarity index of cultural relics based on perceptual Hash (pHsah) algorithm. For orthophoto images of cultural relics with similarity index within the threshold, the SIFT operator is further used to find the corresponding feature points. This paper takes the Buddha statues in Yungang Grottoes as the research object, objectively calculates the similarity index of cultural relics, combines the pHash algorithm and Sift operator, realizes the objective quantitative discrimination of cultural relics similarity, effectively avoids the subjective influence of experts on the judgment of cultural relics similarity.
DIGITAL TWIN: A HBIM-BASED METHODOLOGY TO SUPPORT PREVENTIVE CONSERVATION OF HISTORIC ASSETS THROUGH HERITAGE SIGNIFICANCE AWARENESS
Authors: Jouan P. , Hallot P.
Published: August 2019

Abstract. During preliminary phases of conservation projects, a considerable amount of heterogeneous datasets are produced, gathered, analysed and interpreted. Abundant researches have gradually proven that Historic Building Information Modelling (HBIM) is a relevant alternative for the collaborative management of information related to existing structures. Apart from the obvious benefits of HBIM for information exchange among stakeholders during conservation project, the potential of such processes to support preservation strategies should not be neglected. Moreover, the recent developments of HBIM web-interfaces illustrate the need for additional investigation in strengthening the relationships between the digital model and the real-world to better support preventive conservation of heritage places. Besides, values-based approaches for the elaboration of conservation strategies have been gradually adopted in the last decades, both in academic and professional sector. In this paper, we propose a comprehensive methodology to structure and integrate the cultural significance of tangible and intangible elements into HBIM models to be further taken into account in the analysis and simulation of data. This article suggests the application of Digital Twin (DT) principles to support site managers in the preventive conservation of their assets. Based on the analysis and simulations of data captured by onsite sensors, threats to the site integrity and corresponding preventive solution can be predicted in the DT environment. The integration and structuration of Heritage Values in HBIM models allow further evaluation process to estimate the impact of each suggested interventions on the conservation of features of significance.
DISCUSSION ON THE PROBLEM OF REGULARIZED RECONSTRUCTION IN HBIM
Authors: Li D. , Wang X. , Bai C. , Wu C.
Published: August 2019

Abstract. In heritage recording, conservators are required to understand the subjects, that, in a sense, means to recognizing the two opposite aspects of the buildings in question: regularity and differentiation. To do a specific documentation work, one has to make balance between regularity and differentiation – the opposite poles, according to the goals and specific needs of the work. This paper discuss the goals and needs of HBIM, and regards HBIM models as “index frames” to run the information management for heritage. Therefore regularity is preferred in HBIM and the question of “regularized reconstruction” are raised. Three examples are provided to demonstrate how to realize the representation of regularity in preparing HBIM models, resulting in the conclusion: 1) partial or global regularized reconstruction is available and efficient; 2) regularized reconstruction can make best use of the advantages of BIM and bypass the disadvantages; 3) to what extent the use of regularized reconstruction depends on the regularity degree of the subject.
RESEARCH AND DISPLAY OF THE RESTORATION OF ZHAOXI-LING BASED ON VR AND AR TECHNOLOGY
Authors: Li D. , Cao P.
Published: August 2019

Abstract. Zhaoxi-ling, the tomb of the Empress Xiao Zhuang who was one of the greatest female politicians of Qing Dynasty, is located in the southeast of the Xiao-ling of Eastern Royal Tombs of the Qing Dynasty. This paper is based on the repeated mapping and research of the Zhaoxi-ling by the School of Architecture of Tianjin University, and a comprehensive mapping work was conducted with digital techniques such as three-dimensional laser scanning and photogrammetry from 2012 to 2018. In addition, the historical research and restoration design of Zhaoxi-ling has been deeply studied by the School of Architecture of Tianjin University since 2011, and a wealth of basic materials and design achievements has been formed, including both the restored 2D drawings and restored 3D model. The paper uses VR and AR technology to build a virtual museum for visualizing the restoration study of Zhaoxi-ling, so that the majority of scholars have the opportunity to further research Zhaoxi-ling. At the same time, a unique display would be designed for Zhaoxi-ling by using VR and AR technology, breaking through the traditional display method and showing the unique value of Zhaoxi-ling.
AN AUTOMATIC EXTRACTION METHOD FOR THE PARAMETERS OF MULTI-LOD
BIM MODELS FOR TYPICAL COMPONENTS OF WOODEN ARCHITECTURAL
HERITAGE
Authors: Liu H. , Hou M. , Li A. , Xie L.
Published: August 2019

Abstract. A demand-oriented Building Information Model (BIM) model built using high-fidelity point cloud data can better protect architectural heritage. The multi-level detail (mutli-LoD) parametric model emphasizes the different protection requirements of typical components and the automatic extraction of corresponding parameters of high-fidelity point clouds, which are two related key issues. Taking the typical Chinese wooden architectural heritage as an example, according to different requirements, the multi-LoD principle of typical components is proposed. On this basis, the automatic extraction method of the above parameters is developed, and the key parameters of the method are recommended. In order to solve the above problems, taking the three typical Dou-Gong used in Liao Dynasty and Song Dynasty, including Zhutou Puzuo, Bujian Puzuo and Zhuanjiao Puzuo, as an example, briefly introduced the standardization characteristics of the typical components of the "Yingzao Fashi". Subsequently, the corresponding multiple LoD principles are recommended according to different requirements. Based on this and high-fidelity point cloud data, an automatic extraction method for multi-LoD BIM model parameters for typical components of wooden architectural heritage is proposed.
DESIGNING AND CONSTRUCTION OF THE SPECTRAL LIBRARY FOR TYPICAL
PIGMENTS USED IN CHINESE PAINTINGS
Authors: Lyu S. , Liu Y. , Hou M. , Gao Z. , Yang X. , Gu M.
Published: August 2019

Abstract. Suffered from the environmental changes and human’s influence, Chinese paintings are facing a worrying situation in documentation, which leads urgent into establishing digital archives to realize the permanent preservation of its surface information. Non-destructive identification of pigment types using hyperspectral techniques is the key to ensure the colour restoration scientifically. At present, one commonly used method for spectral identification is to calculate the similarities between unknown spectra and standard spectra in spectral library. The purpose of this study is to establish a spectral library of typical pigments specifically for the information preservation and pigment types identification on surface of Chinese paintings. The main works of the research are: (1) collecting the standard spectra in laboratory and the pigment spectra on surface of real cultural relics as the data source of the spectral library; (2) adding the expert knowledge of traditional pigments and normative descriptions of spectra measurement as part of the spectral library; and (3) constructing the spectral library website with the Browser/Server structure, and by using MySQL database for storage, SSM framework for background building and JSP page for displaying. The significance of the design and construction of the Typical Pigments of Chinese Paintings (TPCP) spectral library is not only to establish a standard spectral library for pigment types identification, but also a digital archive of pigment information on the surface of real cultural relics, to achieve permanent preservation, and provide spectral data sources and pigment information references for conservation workers and researchers in related fields for further research.
INVESTIGATIONS ON THE DESIGN PROCESS OF ELADIO DIESTE:
3D PARAMETRIC MODELLING OF MODERN LATIN AMERICAN ARCHITECTURAL
HERITAGE
Authors: Melachos F. C. , Florio W. , Maietti F. , Rossato L. , Balzani M.
Published: August 2019

Abstract. The Uruguayan Engineer Eladio Dieste underwent a quest for thinness in the field of structural design which rendered his reinforced masonry thin-shell structures at a conspicuous position in Modern Latin American Architectural Heritage, so much so as to have Dieste’s work in Latin America and Europe included in an indicative list for UNESCO’s cultural heritage sites as of 2010. Nonetheless, the design process that led Dieste to such innovative structural typologies is yet to be fully academically explored. Thus, the objective of this paper is to examine the state-of-art regarding the intricate design process of Eladio Dieste’s gaussian vaults and shed some light on the existing gaps within this process by means of the 3D parametric modelling and digital fabrication of selected case studies. The adoption methodological procedures such as 3D parametrical modelling and digital fabrication allows for the establishment of important relationships between the design process and the resulting geometry of Eladio Dieste’s designs, as well as furthering registry of Dieste’s legacy for conservation purposes.
THE OCTAGON OF THE NIDAROS CATHEDRAL IN TRONDHEIM:
CONSTRUCTIVE, HISTORICAL AND TECHNICAL STUDIES ABOUT ITS
RESTORATION PROCEDURES UNTIL THE 19TH CENTURY
Authors: Menargues Rajadell A.
Published: August 2019

Abstract. The history of restorations and renovations on the octagonal apse or Shrine Chapel of the Nidaros Cathedral in Trondheim began already soon after the construction of its lower inner wall and main arches, directly after a first major fire in 1328, and it has continued even if irregularly in all its areas, especially in two major constructive phases during the early 16th, with the archbishop Valkendorff, and the late 19th centuries, with the origin of the Restoration Office and Workshops Nidarosdomens Restaureringsarbeider on 1869. A multidisciplinar and heterogeneous approach of the research of archival documentation, historical photographs and notes on the architect journals has been graphically located through photogrammetry and 3D-Scanning elevations, confirmed by mortar sample analysis and an exhaustive mapping on site of all the surfaces of the octagon, in a Building Archaeological analysis. The example of this methodological procedure is to be shown in general terms for the whole building, whilst concretizing with a deeper level of details in the case of the north-western bay of this apse, an area which contain and can illustrate all these diverse restoration and renovation phases and its characteristics. Further analysis in other areas and the combination and merging feasibility among historical-artistic, archaeological-architectonic and geometrical-modelling data are also included in this article, yet in a second term.
MULTI-SENSOR 3D RECORDING PIPELINE FOR THE DOCUMENTATION OF
JAVANESE TEMPLES
Authors: Murtiyos A. , Grussenmeyer P. , Suwardhi D. , Fadilah W. A. , Permana H. A. , Wicaksono D.
Published: August 2019

Abstract. 3D recording is an important procedure in the conservation of heritage sites. This past decade, a myriad of 3D sensors has appeared in the market with different advantages and disadvantages. Most notably, the laser scanning and photogrammetry methods have become some of the most used techniques in 3D recording. The integration of these different sensors is an interesting topic, one which will be discussed in this paper. Integration is an activity to combine two or more data with different characteristics to produce a 3D model with the best results. The discussion in this study includes the process of acquisition, processing, and analysis of the geometric quality from the results of the 3D recording process; starting with the acquisition method, registration and georeferencing process, up to the integration of laser scanning and photogrammetry 3D point clouds. The final result of the integration of the two point clouds is the 3D point cloud model that has become a single entity. Some detailed parts of the object of interest draw both geometric and textural information from photogrammetry, while laser scanning provided a point cloud depicting the overall overview of the building. The object used as our case study is Sari Temple, located in Special Region of Yogyakarta, Indonesia.
COMBINED PRECISE DOCUMENTATION AND VIRTUAL RECONSTRUCTION OF PROPHET NAHUM SHRINE IN ALQOSH, IRAQ
Authors: Pavelka K. , Šedina J. , Pavelka jr. K.
Published: August 2019

Abstract. In today's world, cooperation between companies that specialize in certain processes is important. There is a long term cooperation between the company GemaArt, focused on historical monument restoration and the Czech Technical University, Faculty of Civil Engineering, dept. of Geomatics, Laboratory of photogrammetry Since 2006, we have finished a lot of projects focused on historical monument care. In the frame of our last project, which was focused on the revitalization and restoration of the Prophet Nahum Shrine in Alqosh in the Iraqi Region of Kurdistan, the detailed documentation and geophysical research of the shrine was carried out in 2018. Close-range photogrammetry, UAV and laser scanning were used for the basic documentation. Several data merge experiments were performed during processing. Significant was the transfer of the main object to the VR, which allows viewing of the object by other professionals without a direct visit to the site and to preserve its original condition before reconstruction.
DOCUMENTING HYDRAULIC DEVICES AT RISK IN DEFENSIVE HERITAGE OF
AL-ANDALUS THROUGH PHOTOGRAMMETRIC TECHNIQUES
Authors: Peñalver-Martín S. , García-Pulido L. J.
Published: August 2019

Abstract. Most of the Islamic fortresses conserved in the south of the Iberian Peninsula are in rural environments, isolated from any population, and are in an important state of degradation and unawareness. One of the main remains of these constructions are usually the cisterns that supply water to these fortresses, an essential element for the subsistence and the evolution of these settlements. This research aims to study these hydraulic elements and others preserved in these fortresses, as well as the evolution of the fortresses itself since their development is irremediably linked. An essential part of the study of these ensembles is the elaboration of an accurate and versatile graphic documentation that reflects its current state, its construction and its position in the territory. However, their situation in inaccessible places and their state of conservation hinders this task. Therefore, this paper shows a methodology based on the survey of photogrammetric models at an aerial and terrestrial level, from which the necessary documentation has been developed in order to advance in their knowledge, and also constituting an important basis for their cataloguing and dissemination. The study of these fortresses and, especially, their hydraulic systems, is essential for the knowledge and, therefore, the safeguarding of this heritage.
A MULTI-SCALAR PHOTOGRAMMETRIC RECORDING APPROACH IN TERMEZ (UZBEKISTAN)
Authors: Angás J. , Uribe P. , Ariño E. , Gurt J. M. , Martínez-Ferreras V. , Pidaev S.
Published: August 2019

Abstract. This paper presents the preliminary results obtained during the 3D recording campaign carried out in 2018 by the Spanish-Uzbek IPAEB mission in the archaeological site of Termez (southern border of Uzbekistan). Ancient Termez is an important historical city within the Silk Road located in the ancient Bactria region. The archaeological work performed at the site since the beginning of the 20th century allowed a large fortified urban complex to be identified that includes other walled enclosures inside it, i.e., a Hellenistic- Seleucid fortress founded after the campaigns of Alexander the Great in the late 4th century BC, several Buddhist monastic complexes dated to the Kushan period (1st to mid-3rd centuries), and a large urban settlement dated to the Islamic period which includes the city proper or shahristan and the suburbs or rabad. After the destruction by Genghis Khan in 1220, Termez was rebuilt following a different plan. Major changes involved the movement of the pottery workshops from the rabad to the previous shahristan. The research focuses on: a) the identification, study and archaeological contextualization of ceramic production centres located in different areas of the ancient Termez from the Kushan to the Islamic period (1st to 14th centuries AD); b) the integration of the pottery workshops into the general topography of the site and c) the study of their evolution in relation to the transformation of the urban design. Since the site is currently located in a military area – close to the border area between Uzbekistan and Afghanistan –, the archaeological work is restricted to specific zones and the use of aerial devices such as drones is forbidden. However, this research requires both micro and macro spatial approaches to accurately record all the archaeological structures and to evaluate the integration and evolution of the pottery workshops into the general topography of the city. In order to fill this gap, declassified images of the CORONA satellite program were analyzed and compared to historical and archaeological data. In addition, we propose a geometrical and graphical recording and distribution system of the kilns – located in the rabad and the shahristan – and the ceramics produced and used in Termez during the period studied by means of photogrammetric techniques. The results are aimed at management through open-source 3D formats and web mapping GIS libraries combined with historical satellite information that defines the different archaeological areas.
INTEGRATING HETEROGENEOUS DATASETS IN HBIM
OF DECORATED SURFACES
Authors: Reina Ortiz M. , Yang C. , Weigert A. , Dhanda A. , Min A. , Gyi M. , Su S. , Fai S. , Santana Quintero M.
Published: August 2019

Abstract. There are multiple conservation challenges related to decorated surfaces, the majority are intimately linked to its documentation. This paper draws on wall paintings as a representative of decorated surfaces, arguing the importance of considering its fourthdimensionality – space and time – in its conservation and documentation. To that end, we propose the use of Building Information Model (BIM) as a platform to consolidate this approach together with various documentation techniques used for the conservation and management of wall paintings. This paper exemplifies this method with a case study of Myin-pya-gu Temple in Old Bagan (Myanmar); firstly, reviewing the different techniques used to document the temple and wall painting (photography, photogrammetry, laser scanning, reflectance transformation imaging (RTI); and secondly, discussing the data integration within a BIM environment. This position proposes a transition from a two-dimensional to a four-dimensional approach in wall painting conservation, potentially opening up possibilities of documentation, monitoring, simulation, or dissemination. Ultimately, the case study of Myin-pya-gu has the objective to introduce the use of HBIM as a platform for consolidating the documentation of decorated surfaces.
Seasonal variability in mass, nutrients and DOC lateral transports off Northwest African Upwelling System
Authors: Burgoa Nadia , Machín Francisco , Marrero-Díaz Ángeles , Rodríguez-Santana Ángel , Martínez-Marrero Antonio , Arístegui Javier , Duarte Carlos M.
Published: August 2019

Abstract. The Coastal-Ocean Carbon Exchange in the Canary Region Project (COCA) arises in order to analyse and get to understand the impact of lateral export of nutrients and organic matter from the highly productive Coastal Upwelling System off NW Africa in the biogeochemical cycles during two different seasons. The circulation patterns off NW African Upwelling System are examined by applying an inverse model to two hydrographic datasets gathered in fall 2002 and spring 2003. The mass transports estimated by model are consistent with the thermal wind equation and the conservation of mass in a closed volume. Besides, the Ekman transport and the freshwater flux are also considered. These estimates show a seasonal variability in the circulation patterns at central levels, particularly in the southern boundary of the domain, where the Cape Verde Frontal Zone is located. In the beginning of fall, this circulation is deeper and northward with a net transport of 6 ± 3 Sv and, in the late spring, it is shallower and southward with a similar intensity. At intermediate levels important differences are also observed between the two seasons. In fall, the Antarctic Intermediate Waters reaches higher latitudes with 2 ± 2 Sv flowing northward. During spring, there is no significant northward flow of AAIW. However, there is a moderate westward mass transport which impacts both the lateral transports of inorganic nutrients and organic matter at intermediate layers and also the shallowest lateral transports of organic matter. Seasonal variability in circulation patterns are also reflected in lateral transports of inorganic nutrients and dissolved organic carbon. Therefore, the changes in the circulation patterns between the two seasons have allowed us to assess the variability in the contributions of SiO2, NO3, PO4 and DOC from the first to the second season. In fall, the transports are mainly northward from the south with −0.80 ± 0.34, −1.11 ± 0.47 and −0.07 ± 0.03 kmol s-1 of SiO2, NO3 and PO4, respectively. In spring, however, lateral transports off-shore are favoured with 0.75 ± 0.37, 1.34 ± 0.66 and 0.08 ± 0.04 kmol s-1 of SiO2, NO3 and PO4, respectively. This westward transport stimulates in turn an intensified westward DOC transport at shallow layers, specifically 0.50 ± 0.25 x 108 mol C day-1.
Towards a nappe theory: Thermo-mechanical simulations of nappe detachment, transport and stacking in the Helvetic Nappe System, Switzerland
Authors: Kiss Dániel , Duretz Thibault , Schmalholz Stefan M.
Published: August 2019

Abstract. Tectonic nappes are observed for more than a hundred years. Although geological studies often refer to a nappe theory, the physical mechanisms of nappe formation are still incompletely understood. We apply two-dimensional numerical simulations of shortening of a passive margin, to investigate the thermo-mechanical processes of detachment, transport and stacking of nappes. We use a visco-elasto-plastic model with standard creep flow laws and Drucker-Prager yield criterion. We consider tectonic inheritance with two initial mechanical heterogeneities: (1) lateral heterogeneity of the basement-cover interface due to half-grabens and horsts and (2) vertical heterogeneities due to layering of mechanically strong and weak sedimentary units. The model shows detachment and horizontal transport of a thrust nappe and stacking of this thrust nappe above a fold nappe. The detachment of the thrust sheet is triggered by stress concentrations around the sediment-basement contact and the resulting brittle-plastic shear band formation. The horizontal transport is facilitated by a basal shear zone just above the basement-cover contact, composed of thin, weak sediments. Fold nappe formation occurs by a dominantly ductile closure of a half-graben and the associated extrusion of the half-graben fill. We apply our model to the Helvetic nappe system in Western Switzerland, which is characterized by stacking of the Wildhorn thrust nappe above the Morcles fold nappe. The modeled structures and temperature field agree with data from the Helvetic nappe system. The mechanical heterogeneities must generate contrasts in effective viscosity (i.e. ratio of stress to strain rate) of four orders of magnitude to model nappe structures similar to the ones of the Helvetic nappe system.
Brief communication: Ad hoc estimation of glacier contributions to sea-level rise from latest glaciological observations
Authors: Zemp Michael , Huss Matthias , Eckert Nicolas , Thibert Emmanuel , Paul Frank , Nussbaumer Samuel U. , Gärtner-Roer Isabelle
Published: August 2019

Abstract. Comprehensive assessments of global glacier mass changes based on a variety of observations and prevailing methodologies have been published at multi-annual intervals. For the years in between, the glaciological method provides annual observations of specific mass changes but is suspected to not be representative at the regional to global scales due to uneven glacier distribution with respect to the full sample. Here, we present a simple approach to estimate and correct for this bias in the glaciological sample and, hence, to provide an ad hoc estimate of global glacier mass changes and corresponding sea-level equivalents for the latest years, i.e. 2016/17 and 2017/18.
A presença do corpo clássico em manifestações da arte e da cultura contemporâneas
Authors: Coelho Ricardo
Published: August 2019

Se a estética do corpo ocupa um lugar de destaque no mundo atual, isso se deve muito às raízes clássicas de nossa cultura ocidental, assim como aos desdobramentos nem sempre positivos dessa influência ao longo dos séculos. A partir de uma abordagem ampliada do conceito de clássico, proposta por Omar Calabrese, faremos uma viagem guiada por diferentes objetos culturais, motivados pela estrutura do Atlas Mnemosyne de Aby Warburg, aproximando criticamente imagens separadas no tempo e no espaço sem qualquer restrição estético-formal, histórico-cronológica ou iconográfica. Desse trajeto desdobram-se análises do corpo clássico não apenas em relação a padrões estéticos e seus ecos visuais na arte e na cultura contemporâneas, mas também um olhar atento para as dimensões éticas e conceituais dessa produção.
Age-Dependent Hemoglobin A1c Therapeutic Targets Reduce Diabetic Medication Changes
in the Elderly
Authors: McCormick Thomas A. , Adams John L. , Lee Eric A. , Emptage Nicholas P. , Palmer-Toy Darryl E. , Martin John P. , Broder Benjamin I. , Kanter Michael H. , Davis Anna C. , McGlynn Elizabeth A.
Published: August 2019

Objective: To assess whether implementation of age-dependent therapeutic targets
for high hemoglobin A1c (HbA1c) changed clinicians’ ordering of diabetes medications for
older adults.Background: In 2016, Kaiser Permanente Southern California (KPSC) changed
the therapeutic targets for alerting clinicians about high HbA1c results in the
electronic health record, KP HealthConnect (KPHC). Previously, all HbA1c results ≥7.0
percent were flagged as high in adult patients with diabetes. Starting in 2016, HbA1c
therapeutic targets were relaxed to <7.5 percent for patients age 65 to 75, and to
<8.0 percent for patients over age 75 to reduce treatment intensity and adverse
events.Methods: This retrospective analysis used logistic regression models to calculate
the change in odds of a medication change following an HbA1c result after age-dependent
HbA1c flags were introduced.Results: The odds of medication change decreased among
patients whose HbA1c targets were relaxed: Odds Ratio (OR) 0.72 (95 percent CI
0.67–0.76) for patients age 65–75 and HbA1c 7.0 percent–7.5 percent; OR 0.72 (95 percent
CI 0.65–0.80) for patients over age 75 and HbA1c 7.0 percent–7.5 percent; and OR 0.67
(95 percent CI 0.61–0.75) for patients over age 75 and HbA1c 7.5 percent–8.0 percent. In
the age and HbA1c ranges for which the alerts did not change, the odds of medication
change generally increased or stayed the same. There was little evidence of medication
de-intensification in any group.Conclusions: These findings suggest that the change in
therapeutic targets was associated with a reduction in medication intensification among
older adults with diabetes.
Epidemiología de la hepatitis a en cataluña , 2001-2006
Authors: Chávez Siliézar Darío Antonio
Published: August 2019

Es un estudio descriptivo retrospectivo y comparativo cuyo principal objetivo es el describir las características epidemiológicas de la hepatitis A en Cataluña, en el periodo 2001-2006 y valorar la influencia de la población marroquí. Fueron notificados 1,378 casos de hepatitis A, de los cuales se incluyeron en el estudio los 1,217 casos confirmados o probables (88.3%). La tasa anual media encontrada fue 3.0 / 100.000 habitantes (rango 1.7 a 3.9). El 63.8% fueron hombres y la mediana de edad era de 27 arias (0-89), siendo el grupo que presenta una mayor tasa el de 5 a 9 años (11.8). Los antecedentes de riesgo más frecuentes fueron: viaje a zona endémica (22.8%), conviviente no sexual (14.5%), consumo alimentario de riesgo (11.1%) y contacto homosexual (5.8%). Se administraron gammaglobulinas y se vacuno a los contactos de los casos en el 13.8%, siendo superior en los casos notificados dentro de los primeros 14 días (28.3%) que en los notificados después de los 14 días (12.4% p<0.001). Los casos asociados fueron más jóvenes que los esporádicos (22 arias de mediana versus 28 arias p<0.001), asistían mas a centros de preescolar (12.8% versus 4.7% p<0.001) y tenían mayor contacto con menores de 3 arias (14.0% versus 8.7% p=0.005). La tasa de incidencia de los años 2005 y 2006 fue de 2.2 casos por 100.000 h. en los españoles y de 9.7 en los marroquíes. Los casos de origen marroquí era más jóvenes que los españoles (7 años de mediana versus 30 arias p<0.001) y presentaban más antecedentes de viaje a zona endémica (62.8% versus 14.6% p<0.001). Los casos con antecedente de viaje a Marruecos era más jóvenes que los españoles, asistían a preescolar con más frecuencia (19.4% versus 3.7%), presentaron menor consumo alimentario de riesgo (1.0% versus 11.6% p<0.001) y eran casos asociados con mayor frecuencia (65.3% versus 36.3% p<0.001). En Cataluña la hepatitis A es más frecuente en niños pequeños y adultos jóvenes. El contacto persona a persona es el mecanismo de transmisión predominante. Los casos de origen marroquí y los casos con antecedente de viaje a Marruecos son más jóvenes y podrían tener importancia en el mantenimiento de la circulación del virus entre la población de menos de 10 años.
Miocardiopatía Takotsubo
Authors: Suárez Arana José Ricardo , Ábrego Hugo Villarroel
Published: August 2019

La miocardiopatía takotsubo es un síndrome cardiaco reportado recientemente en hp& por Sato (1990), que se caracteriza por disfunción ventricular izquierda transitoria, dolor precordial opresivo, cambios electrocardiográficos de tipo isquémico, discreta o nula liberación de marcadores de necrosis miocárdica, simulando un infarto agudo de miocardio (1,2). Este síndrome, usualmente se presenta después de un severo estrés físico o emocional, y se observa predominantemente en personas del sexo femenino. Previamente al reporte de este síndrome, se había informado en la literatura médica mundial que, situaciones que provocaban gran estrés físico (grandes cirugías, graves lesiones del sistema nervioso central) o emocional, eran capaces de producir del. Severo en el coraz6n, inclusive fallo agudo de su función sistólica (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13). Como los primeros casos de "takotsubo" fueron reportados en Japón (14, 15, 16), inicialmente se creyó que podría haber un componente genético en su causa, relacionado con Ia etnia oriental. Poco tiempo después de publicadas las primeras series japonesas, otros países como España, Bélgica, Australia y Estados Unidos, publicaron sus primeros casos (17, 18, 19, 20, 21, 22). Estos últimos reportes descartaron que fuese una entidad clínica relacionada a una raza en particular. La palabra japonesa takotsubo, este compuesta por tako, que significa pulpo y tsubo, botella (1, 2, 6). Este es un artefacto diseñado para atrapar dichos moluscos: el animal penetra fácilmente en el pero ya no puede salir (Fig. 1 y 2). En la gastronomía japonesa el pulpo es una comida muy apreciada y el takotsubo se utiliza con frecuencia en los hogares de los pescadores japoneses como un ornamento en su decoración interior. La miocardiopatía "takotsubo" ha recibido otros nombres: miocardiopatía de estrés (4, 9, 10), síndrome del corazón roto (7), englobamiento transitorio apical del ventrículo izquierdo (13,14) y síndrome de acinesia apical transitoria del ventrículo izquierdo (17, 18, 19). Algunos evocan el componente severo pero transitorio del estrés físico o emocional en la génesis del síndrome, determinando su relativa duración y la recuperación clínica total en la mayoría de pacientes.
Efectividad del láser de baja intensidad en el control de la hipersensibilidad dentaria
Authors: Gomez Nadia , Garcia Karen , De Herrera Helen , Herrera Henry
Published: August 2019

La presente investigación clínica experimental, se realiza en la Escuela de Postgrado de Odontología de la Universidad Evangélica de El Salvador, se estudiaron 49 piezas dentales permanentes de pacientes entre 22-27 asilos, que respondían de forma positiva a las pruebas de sensibilidad al frio, calor, ácido y dulce por un máximo de 5 segundos, realizando laserterapia con intervalos de una semana, durante un mes.