289 research outputs found
V.F. Gening and research problems of the glyadenovo-pyanoborye times in the Cis-Urals region
No full textThe studies by the outstanding archaeologist V.F. Gening in the field of the Volga-Ural antiquities of the turn of the eras, namely the Glyadenovo-Pyanoborye community of the Kama region are analyzed. In this region, V.F. Gening supervised field research of a number of settlements and burial grounds. He singled out a number of cultures that had previously been considered local variants, namely the Osinovo, Garevaya, Azelino and Mazunino cultures, whose status within this community, as well dating are still debatable. The cultural and historical assessment of the unique monuments such as bone beds by him is regarded as incorrect by the author. V.F. Gening attributed them as burial grounds, whereas today they are viewed as traces of human sacrifice
V.F. Gening and problems related to studies of the Glyadenovo-Pyanoborye period in the Gis-Urals region
No full textThe studies by the outstanding archaeologist V.F. Gening in the field of the Volga-Ural antiquities of the turn of the eras, namely the Glyadenovo-Pyanoborye community of the Kama region are analyzed. In this region, V.F. Gening supervised field research of a number of settlements and burial grounds. He singled out a number of cultures that had previously been considered local variants, namely the Osinovo, Garevaya, Azelino and Mazunino cultures, whose status within this community, as well dating are still debatable. The cultural and historical assessment of the unique monuments such as bone beds by him is regarded as incorrect by the author. V.F. Gening attributed them as burial grounds, whereas today they are viewed as traces of human sacrifice
Trabajadores y pegaso, escultura de Agustín Querol antes de su colocación en el Teatro Nacional
No full textV.F. 9046
Eulalio Gutiérrez momentos antes de protestar como Presidente Provisional de la República
No full textNota: el siguiente paso que dieron los delegados fue la formación de un nuevo gobierno nacional, "los pacifistas" de la convención postularon tres candidatos Antonio I. Villarreal, el villista José Isabel Robles y el constitucinalista Juan Cabral, pero los zapatistas expresaron que el ejército libertador tenia instrucciones de oponerse a la candidatura de Villarreal, presentándose Eulalio Gutiérrez, quien finalmente ganó la elección con 88 votos contra 37 a favor de Cabral. Referencia: ÁVILA ESPINOSA, Felipe Arturo, "La Convención de Aguascalientes: fallido intento de unidad revolucionaria"; en Gran Historia de México Ilustrada tomo IV Ed. Planeta, pág. 372. V.F. 39108 Ver: Historia Gráfica de la Revolución Mexicana tomo 3 Ed. Trillas, pág. 910
On the dwellings of the Glyadenovskaya culture and some aspects of adaptation to natural conditions and features of economic activities by the ancient Permians(back to V.F. Gening’s researches during the middle of XX century)
No full textTypical features of Upper-Kama dwellings characteristic of the final stage of the Early Iron Age, which have become a “calling card” of the Glyadenovo cultural community (the so-called Fedotovo type), are analyzed in the article. In the past half-century, the data on dwellings investigated by V.F. Gening at the Fedotovo fortified settlement have been substantially completed by materials from the newly-excavated settlements. It is suggested that the differences in dwelling construction technology on different Glyadenovo culture sites cannot be invariably regarded as cultural and chronological features but often bear an adaptive character, i.e. depend on the natural environment. The version of the Fedotovo dwellings reconstruction proposed in the early works by V.F. Gening also needs some correction, which is offered by the author in accordance with a number of features
On the Glyadenovo culture dwellings and certain aspects of the ancient permians adaptation to natural conditions and economic activity peculiarities (BACK TO THE MID-20TH-CENTURY STUDIES BY V.F. GENING)
No full textTypical features of Upper-Kama dwellings characteristic of the final stage of the Early Iron Age, which have become a “calling card” of the Glyadenovo cultural community (the so-called Fedotovo type), are analyzed in the article. In the past half-century, the data on dwellings investigated by V.F. Gening at the Fedotovo fortified settlement have been substantially completed by materials from the newly-excavated settlements. It is suggested that the differences in dwelling construction technology on different Glyadenovo culture sites cannot be invariably regarded as cultural and chronological features but often bear an adaptive character, i.e. depend on the natural environment. The version of the Fedotovo dwellings reconstruction proposed in the early works by V.F. Gening also needs some correction, which is offered by the author in accordance with a number of features
Computer Aided Detection of Polyps in CT Colonography
No full textCT colonography (CTC) is a minimally invasive method for detection of colorectal polyps and colon cancer. Limitations of CTC related to the efficiency as well as the sensitivity of radiologists. Additionally, the patient's preparation was considered burdensome and the X-ray radiation that is inherent to the technique increases the risk of cancer induction. In this thesis, computerized techniques from the fields of image processing and pattern recognition are proposed in order to increase the efficiency and the acceptance of CT colonography. An automated polyp detection method is introduced to assist the radiologist. This computer aided detection (CAD) system can be used as a second reader, since it is highly sensitive and may therefore enhance the observer's sensitivity. Additionally, the reading time may be reduced as only a few false positives are detected. The CAD system finds and classifies polyp candidates based on a measure indicating the amount of protrusion into the colon. Such protruding candidates are found by using a second principal curvature flow algorithm, which makes use of the knowledge about the normal colon shape. For classification of the candidates, a low-complex pattern recognition system is designed which is shown to be highly sensitive as well as robust to data from different medical centers. Furthermore, an extended electronic cleansing algorithm is proposed that facilitates 3D reading of data from patients adhering to a limited bowel preparation. The electronic cleansing algorithm relies on a preprocessing step using the same principal curvature flow technique that was previously introduced for automated polyp detection. As such, data from patients with a limited bowel preparation can be assessed with an unfolded cube fly-through visualization method, while it does not degradate the radiologist's detection performance. Lastly, the effect of reduced radiation dose is investigated. Therefore, a technique is developed for simulating low-dose Computed Tomography (CT) scans from reconstructed high-dose images. Essentially, this enables in-silico studies into the minimal dose for a particular diagnostic task. It is used to investigate the effectiveness of the automated polyp detection system when the radiation dose is minimized. In conclusion, this thesis presents novel techniques and results that open the way to large-scale screening of colorectal polyps and colon cancer using CT colonography.Department of Imaging Science and TechnologyApplied Science
O impacto de uma exposição cientifica nas represenações sociais sobre meio ambiente dos alunos do ensino médio
No full textDissertação (mestrado) - Universidade Federal de Santa Catrina, Centro de Filosofia e Ciências Humanas. Programa de Pós-Graduação em Psicologia.Esta pesquisa tem como objetivo verificar o impacto de uma exposição científica nas representações sociais sobre meio ambiente dos alunos do ensino médio. Desde a sua origem, nos anos 60, a teoria das representações sociais analisa a difusão da ciência pelos meios de comunicação, ocupando uma posição central nos estudos da divulgação científica e permeando tanto a organização de meios de divulgação como de conteúdos necessários a sua consecução. Uma dimensão importante e presente nas exposições científicas contemporâneas é a abordagem social da ciência e tecnologia. Nessa dimensão, um tema que tem sido privilegiado pelos museus de ciências e professores diz respeito ao meio ambiente. A construção dessa exposição levou em conta a noção de paradigmas ambientais e foi construída de forma a explicitar o contraste entre o homem como excluído ou como parte integrante do meio ambiente. Participaram dessa pesquisa 285 alunos da segunda série do ensino médio de quatro escolas de Florianópolis. A pesquisa foi feita nas escolas e em uma sala de exposições da UFSC. Pode-se dizer que houve um impacto sobre as representações sociais de meio ambiente dos alunos que visitaram a exposição através do surgimento de esquemas estranhos (referentes ao conteúdo da exposição) nessas representações, apontando um crescimento informativo e cognitivo desses alunos. Espera-se poder contribuir com o nível de alfabetização científica dos cidadãos catarinenses, bem como verificar a contribuição da atividade de divulgação científica para a teoria das representações sociais, além de contribuir para o desenvolvimento do campo de pesquisa dessa teoria
Resistance thermometers based on the germanium films
No full textThe latest achievements in the field of development of resistance thermometers based on the germanium films on gallium arsenide are presented and summarized. Basic models of Ge film thermometers, which cover the temperature range from 0.02 to 500 K, are considered. Characteristics of the thermometers in high magnetic fields and under the action of ionizing irradiation (neutrons and gamma-rays) are presented.The author would like to express his gratitude to Prof. M.Oszwaldowski (Politechnika Poznanska, Poznan, Poland),
Prof. J. Klamut (International Laboratory of High Magnetic Fields and Low Temperatures in Wroclaw, Poland) and to Dr.I.Yu. Nemish (Special Design Office of ISP NASU, Kiev, Ukraine) for collaboration and assistance in thermometer investigations in high magnetic fields and at low temperatures. The author is also grateful to Prof.G.G. Ihas (University of Florida, USA) for examination of thermometers at ultra-low temperatures (25 mK-4.2 K) and in high magnetic fields. The author would like to thank Dr.Yu.P. Filippov (Joint Institute for Nuclear Research, Dubna, Russia) for the interest in
germanium film thermometers and investigation of thermometers under the influence of radiation and for helpful discussions. The author is thankful to Dr. N. S. Boltovets (Research Inst. «Orion», Kiev) for collaboration during design of the case, micropackaging and fabrication of thermometers, and to V.V. Kholevchuk (ISP NASU, Kiev) for assistance in conduction of the study. The author thanks Prof. R.V. Konakova and Prof.E.F. Venger (ISP NASU, Kiev) for the support of this research and design work and for helpful discussions
Resistance thermometers based on the germanium films
No full textThe latest achievements in the field of development of resistance thermometers based on the germanium films on gallium arsenide are presented and summarized. Basic models of Ge film thermometers, which cover the temperature range from 0.02 to 500 K, are considered. Characteristics of the thermometers in high magnetic fields and under the action of ionizing irradiation (neutrons and gamma-rays) are presented.The author would like to express his gratitude to Prof. M.Oszwaldowski (Politechnika Poznanska, Poznan, Poland),
Prof. J. Klamut (International Laboratory of High Magnetic Fields and Low Temperatures in Wroclaw, Poland) and to Dr.I.Yu. Nemish (Special Design Office of ISP NASU, Kiev, Ukraine) for collaboration and assistance in thermometer investigations in high magnetic fields and at low temperatures. The author is also grateful to Prof.G.G. Ihas (University of Florida, USA) for examination of thermometers at ultra-low temperatures (25 mK-4.2 K) and in high magnetic fields. The author would like to thank Dr.Yu.P. Filippov (Joint Institute for Nuclear Research, Dubna, Russia) for the interest in
germanium film thermometers and investigation of thermometers under the influence of radiation and for helpful discussions. The author is thankful to Dr. N. S. Boltovets (Research Inst. «Orion», Kiev) for collaboration during design of the case, micropackaging and fabrication of thermometers, and to V.V. Kholevchuk (ISP NASU, Kiev) for assistance in conduction of the study. The author thanks Prof. R.V. Konakova and Prof.E.F. Venger (ISP NASU, Kiev) for the support of this research and design work and for helpful discussions
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