2,179 research outputs found
Cave Art as Installation Art: Analysis of the Human-Art-Wall Triad in Three Cantabrian Caves, and Embedded Interactivity in the Image-Making and Image-Viewing process.
Why were caves selected as places for art in the Palaeolithic? The question has not yet been explained. Previously, I attempted to answer it in part by examining cave art from the perspective of installation art whose aim is to provide us with different multisensory experiences to those of quotidian life. As a result, this theory of contemporary art led to a theory, cave art as installation art, which denotes an interactive nature between humans and a cave’s physical environment. In this thesis I develop this theory through the provision of concrete observations obtained from fieldwork in decorated caves. I investigate 54 images from three caves (Covalanas, El Pendo, El Castillo) in Cantabria, Spain, focusing on the interactivities of cave art during the production and post-production (viewing) phases. The environmental factor concerned is the condition of the cave’s wall, with which humans were able to interact creatively. The data collected comprises three categories, each of which testifies to a different type of interactivity: integration of natural lines with art; topographic conditions of the art area; and distortion of images due to its background topography. These categories reflect how the wall’s features are incorporated into images, and how those features generated further interactivity in the post-production phase. As I am primarily concerned with the physical condition of the cave wall, I adopted digital photogrammetry to reconstruct 3D models of the 54 analysed images, which enabled me to analyse their topographic information in detail. The data were subsequently sorted statistically in terms of the three data categories. Consequently, the study suggests that Palaeolithic artists intentionally used walls’ specific conditions to enhance the processes of image-making and image-viewing. A mutual relationship between an actor and an artistic medium inevitably redraws our concept of cave art to an interconnection between environment, art, and human
男性直腸癌に対する腹腔鏡下根治術後の性機能推移:多施設共同前向き観察研究
京都大学新制・課程博士博士(医学)甲第23075号医博第4702号新制||医||1049(附属図書館)京都大学大学院医学研究科医学専攻(主査)教授 川上 浩司, 教授 近藤 尚己, 教授 小川 修学位規則第4条第1項該当Doctor of Medical ScienceKyoto UniversityDFA
Lax pairs on Yang-Baxter deformed backgrounds
We explicitly derive Lax pairs for string theories on Yang-Baxter deformed
backgrounds, 1) gravity duals for noncommutative gauge theories, 2)
-deformations of S, 3) Schr\"odinger spacetimes and 4) abelian
twists of the global AdS\,. Then we can find out a concise derivation of
Lax pairs based on simple replacement rules. Furthermore, each of the above
deformations can be reinterpreted as a twisted periodic boundary conditions
with the undeformed background by using the rules. As another derivation, the
Lax pair for gravity duals for noncommutative gauge theories is reproduced from
the one for a -deformed AdSS by taking a scaling limit.Comment: 1+39 pages, v3: typos corrected and the reference [42] adde
A Transposition Flap Reconstruction after Resection of a Soft-Tissue Sarcoma in the Buttock
Introduction: Large defects following resection in the gluteal region are challenging. Of note, there are a limited number of fairly morbid options for reconstruction. Case Report: A 65-year-old female presented with complaints of an enlarging mass in the left buttock over the past several months. A high-grade sarcoma was diagnosed based on a biopsy. The final diagnosis was an undifferentiated pleomorphic sarcoma based on the resected tumor. An 11-cm tumor with surrounding tissues, including the great gluteal muscle, was resected, which resulted in a 17-cm full thickness defect. The defect was reconstructed with a transposition flap elevated from the lateral thorax. A transposition flap can cover large buttock defects without sacrificing other muscles. Conclusion: Moreover, a transposition flap is esthetically acceptable because most of the operative scar is within the buttock area. A transposition flap reconstruction is one of the several options for large defects after soft-tissue sarcoma resection in the buttock
Thoracoabdominal flap reconstruction after resection of superficial soft-tissue sarcomas in the chest wall
The thoracoabdominal flap is a rotation flap, and is well known for reconstruction of defects following resections for breast cancer, but the flap is not well known for reconstructing defects following resections of soft-tissue sarcomas involving the chest wall. Here we present two patients with superficial chest wall sarcomas consisting of a dermatofibrosarcoma protuberans in a 42-year-old man and a recurrent myxofibrosarcoma in a 76-year-old man. The tumors were resected with the surrounding tissue. The defect was reconstructed with a thoracoabdominal flap elevated from the ipsilateral thorax (medially-based flap). Neither case developed necrosis of the flap or reduced shoulder range of motion. The chest wall presents few options for a donor vessel. The thoracoabdominal flap has an axial blood supply and does not require a microsurgical procedure. A thoracoabdominal flap is a suitable reconstruction option for a defect after the resection of a superficial soft-tissue sarcoma in the chest wall
Operator analysis of physical states on magnetized orbifolds
We discuss an effective way for analyzing the system on the magnetized
twisted orbifolds in operator formalism, especially in the complicated cases
, and . We can obtain the exact and
analytical results which can be applicable for any larger values of the
quantized magnetic flux M, and show that the (non-diagonalized) kinetic terms
are generated via our formalism and the number of the surviving physical states
are calculable in a rigorous manner by simply following usual procedures in
linear algebra in any case. Our approach is very powerful when we try to
examine properties of the physical states on (complicated) magnetized orbifolds
, , (and would be in other cases on
higher-dimensional torus) and could be an essential tool for actual realistic
model construction based on these geometries.Comment: 41 pages, 1 figur
Phase transition of the Si(111)-4x1-In surface reconstruction investigated by electron transport measurements
We measure the electron conductivity of the surface states and the subsurface
space charge layer originating from the Si(111)-4x1-In reconstruction as a
function of temperature. The conductivity of the surface states drops sharply
around 130 K with decreasing temperature, revealing a metal-insulator phase
transition of the surface reconstruction. In contrast, the influence of the
phase transition on the conductivity of the space charge layer is limited to
temperatures above 60 K. This means that the surface Fermi level remains
strongly pinned despite the phase transition, indicating the presence of free
carriers in the surface states down to rather low temperatures.Comment: 10 pages, 3 figures, submitted to Surface Scienc
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