Digital documentation and visualization of archaeological excavations and finds using 3D scanning technology

[ES] La medición es una acompañante imprescindible en cada yacimiento arqueológico. Tomar medidas sin tocar ó estropear el objeto medido, es una de las ventajas de una documentación tridimensional del lugar entero con la técnica de escaneo láser. La alta precisión y resolución de los sistemas modernos ofrece la posibilidad del registro tridimensional de la geometría con gran exactitud y la documentación de su textura con alta resolución. Comparativamente con las métodos tradicionales el escaneo permite medir al mismo tiempo mucho mas detalles de un objeto. Estos instrumentos de alta tecnología se utilizan normalmente para el control de formación de muros de presa ó para asegurar la calidad geométrico de la construcción de aviones ó motores. Y también supone un gran progreso en el futuro de la arqueología y en la protección del matrimonio cultural de la humanidad.[EN] In 2007 the special research program HiMAT - History of Mining Activities in Tyrol and adjacent areas, focussing on environment and human societies, was established at the University of Innsbruck as an interdisciplinary and international research project, sponsored by the Austrian Science Fund (FWF). During late medieval and early modern times, the mining area of Schwaz in Tyrol became famous in Europe, due to the large scale exploitation of copper and silver bearing fahlores, going along with the development of high technologies in the field of mining and metallurgy. In that period, Schwaz was even called “the mother of all mines”. In the area of Schwaz/Brixlegg the main focus of our research project is on early traces of copper mining and metallurgy dating back to the late Bronze Age. Such traces are still preserved, especially in boundary areas of the main ore deposits. On the basis of previous surveys a little valley called “Maukental” was chosen for archaeological investigations, because within this small area the entire copper production process of the late Bronze Age can be studied in detail. During the past two years, the Institute of Archaeology and Surveying and the Geoinformation Unit of the University of Innsbruck worked together in this area. One object of interest was a late Bronze Age ore dressing site situated in a former peat-bog. In this place the advantageous environment preserved fragile wooden structures and artefacts which could be digitally documented in the condition of retrieval.The work is generously supported by the Austrian Science Fund (FWF Project F3114) in the framework of the Special Research Program History of Mining Activities in the Tyrol and Adjacent Areas (SFB "HiMAT") as well as by the province governments of Tyrol, South Tyrol, Vorarlberg and Salzburg, the local authorities of the mining areas concerned, the TransIT foundation and the University of Innsbruck, Austria.Moser, M.; Hye, S.; Goldenberg, G.; Hanke, K.; Kovács, K. (2010). Digital documentation and visualization of archaeological excavations and finds using 3D scanning technology. Virtual Archaeology Review. 1(2):143-147. https://doi.org/10.4995/var.2010.4717OJS14314712AKCA, D. et al.: Recording and modeling of cultural heritage objects with coded structured light projection systems. In: 2nd International Conference on Remote Sensing in Archaeology, pp.375-382, Rome, Italy. December 4-7, 2006ALLEN, P. et al: Seeing into the past: creating a 3D modeling pipeline for archaeological visualization In: Proceedings. 2nd International Symposium on 3D Data Processing, Visualization and Transmission, 2004. 3DPVT 2004. ISBN: 0-7695-2223-8 pp. 751- 758CHAPMAN P. et al.: VENUS, Virtual ExploratioN of Underwater Sites. Proceeding of joint event CIPA / VAST / EG /Euro-Med 2006 in Nicosia, Cyprus. In: Ioannides M. et al (eds.) The e-volution of Information Communication Technology in Cultural Heritage. ISBN-10: 963 8046 73 2 ÖGOLDENBERG, G.; HYE, S.; KLAUNZER, M.: KG Zimmermoos, MG Brixlegg, VB Kufstein. Fundberichte Österreich 46, 2008, pp. 649- 650.ENGLISH HERTIAGE 2007: 3D Laser Scanning for Heritage - Advice and guidance to users on laser scanning in archaeology and architecture. Edited and brought to press by David M Jones, English Heritage PublishingHANKE, K.: The photogrammetric contribution to archaeological documentation of prehistory. Proceedings of the ISPRS Congress in Amsterdam. In: International Archives of Photogrammetry and Remote Sensing Vol. XXXIII Part 5 (2000)HANKE, K.: Contribution of Laser Scanning, Photogrammetry and GIS to an Interdisciplinary Special Research Program on the History of Mining Activities (SFB HIMAT) In: The ISPRS International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences Vol. XXXVI - 5/C53 (ISSN 1682-1750) and The CIPA International Archives for Documentation of Cultural Heritage Vol. XXI (2007) (ISSN 0256 - 1840).HANKE, Klaus; MOSER, Michael; GRIMM-PITZINGER, Albert; GOLDENBERG, Gert; TÖCHTERLE, Ulrike (2008): Enhanced potential for the analysis of archaeological finds based on 3D modeling. In: CHEN, Jun; JIANG, Jie; MAAS, Hans-Gerd: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B5. Beijing 2008. ISBN 1682-1750, Verlag ISPRS, Hannover - Istanbul [u.a.], S 187 - 191.REMONDINO, F.; EL-HAKIM, S., 2006: Image-based 3D modelling: a review. Photogrammetric Record, 21(115), pp. 269-291 http://dx.doi.org/10.1111/j.1477-9730.2006.00383.xSABLATNIG, R.; MENARD, C., 1996. "Computer based acquisition of archaeological finds: the first step towards automatic classification", In: 3rd International Symposium on Computing and Archaeology, Rome, Vol. 1, pp. 429-446.KLAUNZER, M.; GOLDENBERG, G.; HYE, S.; TÖCHTERLE, U. .: KG Zimmermoos, MG Brixlegg, VB Kufstein. Fundberichte Österreich 47, 2009 (in press)

Application of the reversed LISS-DF technique in an elderly patient to salvage infection-related failure of trochanteric fracture fixation.

Failure of cephalomedullary fixation in geriatric trochanteric fractures is a potential complication. Attempts have been made to optimize the implant fixation (e. g. cement augmentation) and several factors (e. g. malreduction, tip apex distance) have been identified as risk factors for failure. Nevertheless, if intramedullary fixation fails, it is often associated with bone defects in mostly preexisting poor bone-stock. Accordingly, conversion to total hip arthroplasty (THA) is recommended by some authors as the only valid treatment option. However, in specific situations (e. g. implant associated infection) conversion to THA might be less reasonable than an attempt to re-osteosynthesis. This article reports on the successful use of a reversed contralateral LISS-DF (LISS for the distal femur, DePuy Synthes, Zuchwil, Switzerland) application after failed cephalomedullary fixation and failed re-osteosynthesis using a blade plate in a trochanteric fracture in an elderly patient with additional implant associated infection

Complications of hip preserving surgery.

Preoperative evaluation of the pathomorphology is crucial for surgical planning, including radiographs as the basic modality and magnetic resonance imaging (MRI) and case-based additional imaging (e.g. 3D-CT, abduction views).Hip arthroscopy (HAS) has undergone tremendous technical advances, an immense increase in use and the indications are getting wider. The most common indications for revision arthroscopy are labral tears and residual femoroacetabular impingement (FAI).Treatment of borderline developmental dysplastic hip is currently a subject of controversy. It is paramount to understand the underlining problem of the individual hip and distinguish instability (dysplasia) from FAI, as the appropriate treatment for unstable hips is periacetabular osteotomy (PAO) and for FAI arthroscopic impingement surgery.PAO with a concomitant cam resection is associated with a higher survival rate compared to PAO alone for the treatment of hip dysplasia. Further, the challenge for the surgeon is the balance between over- and undercorrection.Femoral torsion abnormalities should be evaluated and evaluation of femoral rotational osteotomy for these patients should be incorporated to the treatment plan. Cite this article: EFORT Open Rev 2021;6:472-486. DOI: 10.1302/2058-5241.6.210019

Experimental Hall electron mobility of bulk single crystals of transparent semiconducting oxides

We provide a comparative study of basic electrical properties of bulk single crystals of transparent semiconducting oxides (TSOs) obtained directly from the melt (9 compounds) and from the gas phase (1 compound), including binary (β-Ga2O3, In2O3, ZnO, SnO2), ternary (ZnSnO3, BaSnO3, MgGa2O4, ZnGa2O4), and quaternary (Zn1−xMgxGa2O4, InGaZnO4) systems. Experimental outcome, covering over 200 samples measured at room temperature, revealed n-type conductivity of all TSOs with free electron concentrations (ne) between 5 × 1015 and 5 × 1020 cm−3 and Hall electron mobilities (μH) up to 240 cm2 V−1 s−1. The widest range of ne values was achieved for β-Ga2O3 and In2O3. The most electrically conducting bulk crystals are InGaZnO4 and ZnSnO3 with ne > 1020 cm−3 and μH > 100 cm2 V−1 s−1. The highest μH values > 200 cm2 V−1 s−1 were measured for SnO2, followed by BaSnO3 and In2O3 single crystals. In2O3, ZnO, ZnSnO3, and InGaZnO4 crystals were always conducting, while others could be turned into electrical insulators.Leibniz-Gemeinschaft http://dx.doi.org/10.13039/501100001664Leibniz-Institut für Kristallzüchtung (IKZ) im Forschungsverbund Berlin e.V. (3477)Peer Reviewe