421 research outputs found
Ding–Iohara–Miki symmetry of network matrix models
No full textAbstractWard identities in the most general “network matrix model” from [1] can be described in terms of the Ding–Iohara–Miki algebras (DIM). This confirms an expectation that such algebras and their various limits/reductions are the relevant substitutes/deformations of the Virasoro/W-algebra for (q,t) and (q1,q2,q3) deformed network matrix models. Exhaustive for these purposes should be the Pagoda triple-affine elliptic DIM, which corresponds to networks associated with 6d gauge theories with adjoint matter (double elliptic systems). We provide some details on elliptic qq-characters
Taxonomic revision of Pinus fujiii (Yasui) Miki (Pinaceae) and its implications for the phytogeography of the section Trifoliae in east Asia
No full textPinus trifolia Miki 1939 (Pinaceae) was originally proposed based on seed cones from the upper Miocene of Aichi and Gifu Prefectures, central Japan. However, before the publication of P. trifolia, a different name (Pinus fujiii (Yasui) Miki) was given to a female cone with the same morphology. On the other hand, P. fujiii auct. non (Yasui) Miki has been used for seed cones with different morphologies from Yasui's holotype, i.e., apophyses arranged in 5:8 parastichies and a perexcentromucronate slightly-pointed umbo. As a result of re-examination on the Miki and Yasui specimens, we concluded that P. trifolia was a synonym for P. fujiii and proposed here Pinus mikii sp. nov. for cones assigned to P. fujiii auct. non (Yasui) Miki. We also emended the diagnosis of P. fujiii based on these specimens. Pinus fujiii is characterized by a large female cone in which the apophyses with a centromucronate prickle-like umbo are arranged in 8:13 parastichies, and deciduous seed wings. These characters suggest that P. fujiii belongs to the section Trifoliae of the subgenus Pinus, which is now restricted to North and Central America and the Caribbean islands. Fossil data suggest that the P. fujiii lineage firstly appeared in Japan around the Eocene/Oligocene boundary. We speculate that the P. fujiii lineage might have moved southward to Japan from a refugium located elsewhere in high-latitude areas in response to the late Eocene cooling event, as occurred with other Trifoliae species in North America. © 2015 Yamada et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
The salvage chemotherapy for refractory testicular cancer with novel anticancer agents
No full textDespite the generally high cure rate in patients with metastatic testicular cancer, 20% to 30% of treated patients will become candidates for salvage chemotherapy. We reviewed the recent salvage chemotherapy trials of refractory diseases. CPT-11 is a new derivative of camptothecin and has activity in a variety of solid tumors. We evaluated the antitumor effect of combination chemotherapy using CDDP and CPT-11 against refractory testicular cancer. Fourteen patients who failed to achieve complete remission with salvage chemotherapy were treated with combination chemotherapy with CPT-11 and CDDP or 254-S (nedaplatin) as third line chemotherapy. Six patients remain alive and disease-free and 5 patients died of disease. The combination of CPT-11 and either CDDP or nedaplatin was significantly more effective than other salvage therapy regimens such as VIP. Paclitaxel, ifosfamide, etoposide regimens were also effective in patients with refractory testicular tumors. We concluded that these combination regimens demonstrated significant activity against refractory testicular tumor and further investigation is warranted
Resenha de Livro: Fronteiras da Cidadania. Uma História Negra e Indígena do Brasil Pós-colonial, de Yuko Miki
No full textThe book by historian Yuko Miki represents an outstanding effort to combine two academic fields that have developed independently and rarely communicate with each other: studies on indigenous groups and studies on African-descendend peoples. Her goal is to understand the shared stories and the sometimes divergent trajectories of indigenous and African-descended populations that inhabited a region the author calls the «Atlantic frontier», during the period of the Brazilian Empire (1822-1889). The study shows that this type of academic integration can advance our understanding of nineteenth-century history. It also constitutes an exceptional example of a regional history that makes important contributions to key historiography about Brazil.El libro de la historiadora Yuko Miki constituye un destacado esfuerzo por poner a dialogar dos tradiciones académicas que se han desarrollado de forma independiente y rara vez se comunican: los estudios sobre indígenas y sobre afrodescendientes. Su objetivo es entender las historias compartidas y las trayectorias, a veces divergentes, de las poblaciones indígenas y afrodescendientes que habitaron una región que la autora identifica como «frontera atlántica» durante el período del Imperio brasileño (1822-1889). La obra no solo demuestra lo fructífera que puede ser tal integración académica para entender la historia del siglo XIX, sino que es un ejemplo excepcional de una historia regional que hace aportes indudables en algunos temas clave de la historiografía sobre Brasil.O livro da historiadora Yuko Miki é um esforço notável para colocar em diálogo duas tradições acadêmicas que se desenvolveram de forma independente e raramente são comunicadas: estudos indígenas e afrodescendentes. Seu objetivo é compreender as histórias compartilhadas e as trajetórias por vezes divergentes das populações indígenas e afrodescendentes que habitaram uma região que a autora identifica como a «fronteira atlântica» durante o período do Império brasileiro (1822-1889). A obra não apenas demonstra o quanto essa integração acadêmica pode ser fecunda para a compreensão da história do século XIX, mas é um exemplo excepcional de uma história regional que traz contribuições inquestionáveis para algumas questões-chave da historiografia brasileira
Simultaneous bilateral testicular tumors with different cell types: a case report
No full textA 26-year-old man presented with a painless mass in the right scrotum. Physical examination revealed another smaller mass in the left testis. The patient underwent right radical orchiectomy and enucleation of the tumor in the left testis, followed by radiotherapy for right iliac and para-aortic lymph nodes up to a total dose of 30 Gy. Histology proved typical seminoma of the right testis and mature teratoma in the left testis. Imaging study including abdominal CT and chest X-ray and prompt lowering of beta-HCG level within the normal limit after surgery confirmed the diagnosis of stage I disease. Human leukocyte antigen (HLA)-A24 was identified in this case, suggesting its potential association with bilateral testicular tumor. He is now leading an uneventful life without recurrence of the disease at 30 months after surgery
The Concept of Myth in Kōsaka Masaaki and Miki Kiyoshi’s Critique
No full textThis paper explores the concept of myth in two books written by Kōsaka Masaaki, The Historical World (1937) and Philosophy of the Nation (1942). In both, myth appears as a central moment in the transition from primitive to modern societies. The role of myth is closely related to Kōsaka’s notion of nature, since one goal of his reflection is to show how history is supported by the “substratum” of nature. In this sense, he also distinguishes between the natural and historical aspects of nations. After analyzing the subcategories of primordial nature, environmental nature, and historical nature, the paper shows how these layers are articulated by myth. Authority, in the contractual form of potlatch, signalizes the moment of transition to the true self-determination of nations. Miki Kiyoshi was one author who pointed out the problematic aspects of Kōsaka’s theory of nation. A comparison with Miki’s thought uncovers how authority is the main characteristic of Kōsaka’s view of myth. The paper finishes by investigating where this authority comes from. Since it cannot come from nature alone, it should also come from the past character of myth itself, which is an expression of what Kōsaka terms “the eternal now”
Symmetry, Integrability and Geometry: Methods and Applications Commutative Families of the Elliptic Macdonald Operator ⋆
No full textHoshino, Shiraishi, and Yanagida constructed two families of commuting operators which contain the Macdonald operator (commutative families of the Macdonald operator). They used the Ding–Iohara–Miki algebra and the trigonometric Feigin–Odesskii algebra. In the previous paper [arXiv:1301.4912], the present author constructed the elliptic Ding–Iohara– Miki algebra and the free field realization of the elliptic Macdonald operator. In this paper, we show that by using the elliptic Ding–Iohara–Miki algebra and the elliptic Feigin–Odesskii algebra, we can construct commutative families of the elliptic Macdonald operator. In Appendix, we will show a relation between the elliptic Macdonald operator and its kernel function by the free field realization. Key words: operator elliptic Ding–Iohara–Miki algebra; free field realization; elliptic Macdonal
Reliability, Efficiency and Cost Trade-offs for Medium Voltage Distribution Network Expansion using Refurbished AC-DC Reconfigurable Links
No full textThe role of MVDC links for distribution network expansion is important. The distribution network operators (DNOs) can maximize the power transfer capacity of existing grid infrastructure during (n-1] contingencies using reconfigurable parallel ac-dc architecture. In addition this concept involves a range of efficiency, reliability and economic trade-offs. The object of this paper is to present a discussion on the emerging choices involved in adopting a parallel ac-dc reconfigurable link architecture in designing future and flexible power grids.DC systems, Energy conversion & Storag
Report of Stay at Bicetre Hospital : Studying Clinical Neurology in France(Special Issue in Hornor of the Retirement of Professor Makoto Iwata at the Department of Neurology, Tokyo Women's Medical University)
No full textThe author studied clinical neurology in the departement of Neurology of the Bicetre hospital located in the suburbs of Paris between September 2005 and September 2007. This report illustrates my experiences in there
Inter-application communication during LHD consecutive short pulse discharge experiment
No full textLHD short pulse experiments are executed every three minutes. After the end of the discharge, the scientists must collect, analyze, visualize the last acquired data of the discharge, and prepare for the next discharge. From the beginning, the computer environment of the LHD (Large Helical Device) experiment has been built as a network distributed system, and various computers have been used for data acquisition or physical analysis. When one program is finished on one computer, that computer must send the results in order to the other computers to run programs. Smooth communication is required in order to finish all the tasks before the next discharge. To exchange the information among the applications running on the different computers, the authors have tried various methods, such as a commercial software to share the memory over the network, simple network file sharing method, IP multicast, web interfaces, and others. The purpose of this paper is to share our experiences of trial and error to build the network distributed systems for the consecutive plasma discharge experiments.journal articl
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