769 research outputs found
Descriptions of the embryonic forms of thirty-eight species of Unionidae
No full textIsaac LeaHandschriftliches Geschenkexlibris: "Prof. Heer from the author" Exemplar der ETH-BI
ISAAC NEWTON E A ÓPTICA
No full textPhilosophical, chemical, astronomical and anatomical studies have been presented throughout history by great personalities and thinkers. Sir Isaac Newton, author of Optics, is one personality of his time. Explorated and demystified in his time the geometric and physical optics applied today. This study is a review of indexed articles on the Google Scholar platform, with reference to Isaac Newton\u27s contribution to modern science. Objetive is present the optical concepts of refraction, reflection, visible spectrum of colors and geometric optics applied today and their evolution and application to the academic world.Los estudios filosóficos, químicos, astronómicos y anatómicos fueron presentados a lo largo de la historia por grandes personalidades y pensadores. Una de las personalidades de su época, Sir Isaac Newton, autor de Óptica desmitificó la óptica geométrica y física aplicada en la actualidad. A través de este estudio, realizado en artículos publicados e indexados en la plataforma Google Academic, con referencia a la contribución de Isaac Newton a la ciencia moderna, buscamos presentar los conceptos ópticos de refracción, reflexión, espectro visible de colores y óptica geométrica aplicada hoy en día, su evolución y aplicación al mundo académico.Os estudos filosóficos, químicos, astronômicos e anatômicos foram apresentados durante a história por grandes personalidades e pensadores. Uma das personalidades à sua época, Sir Isaac Newton, autor da obra Óptica desmitificou a óptica geométrica e física aplicadas na atualidade. Através deste estudo, realizado em publicados e artigos indexados na plataforma Google Acadêmico, com referência à contribuição de Isaac Newton à ciência moderna, busca-se apresentar os conceitos ópticos de refração, reflexão, espectro visível das cores e os ópticos geométricos aplicados na atualidade, sua evolução e aplicação ao mundo acadêmicoOs estudos filosóficos, químicos, astronômicos e anatômicos foram apresentados durante a história por grandes personalidades e pensadores. Uma das personalidades à sua época, Sir Isaac Newton, autor da obra Óptica desmitificou a óptica geométrica e física aplicadas na atualidade. Através deste estudo, realizado em publicados e artigos indexados na plataforma Google Acadêmico, com referência à contribuição de Isaac Newton à ciência moderna, busca-se apresentar os conceitos ópticos de refração, reflexão, espectro visível das cores e os ópticos geométricos aplicados na atualidade, sua evolução e aplicação ao mundo acadêmic
Contributions to geology
No full textby Isaac LeaHandschriftliches Geschenkexlibris: "For Edward Bury with the...f the Author" 002181188_0001 Exemplar der ETH-BIBExlibrisetikette: "Edward Bury" 002181188_0002 Exemplar der ETH-BIBExlibrisetikette: "Alan George Nicholson" 002181188_0003 Exemplar der ETH-BI
Isaac caro in his time
No full textToldot Ishaq, the major work of Isaac Caro, is a spanish work. Its most probable historical context is the mentality of fifteenth century Spain, Jewish and Christian. The author bases his thesis on linguistic peculiarities and other less obvious characteristis of the work.La principal obra de Isaac Caro, Tolĕdot Yishaq, muestra un carácter decididamente hispano. Su contexto histórico mas probable es la mentalidad de judíos y cristianos de la España del s. XV. El autor de este artículo apoya su tesis en peculiaridades lingüísticas y otros detalles menos obvios
Isaac caro in his time
No full textToldot Ishaq, the major work of Isaac Caro, is a spanish work. Its most probable historical context is the mentality of fifteenth century Spain, Jewish and Christian. The author bases his thesis on linguistic peculiarities and other less obvious characteristis of the work.La principal obra de Isaac Caro, Tolĕdot Yishaq, muestra un carácter decididamente hispano. Su contexto histórico mas probable es la mentalidad de judíos y cristianos de la España del s. XV. El autor de este artículo apoya su tesis en peculiaridades lingüísticas y otros detalles menos obvios
Livro de Isaac: edição crítica da tradução medieval portuguesa da obra de Isaac de Nínive
No full textO estudo realizado por César Nardelli Cambraia, publicado em 2017, vem à luz como a primeira edição a divulgar o texto crítico da tradução medieval portuguesa do Livro de Isaac, tratado ascético escrito originalmente em siríaco por volta de fins do século VII por Isaac de Nínive. Trabalho minucioso, realizado com base no confronto dos quatro testemunhos supérstites em que a tradução foi preservada. É uma edição crítica com o objetivo de restituir a forma genuína do texto, a forma original da tradução portuguesa do livro em questão. Como o próprio autor afirma, trata-se de um "trabalho de síntese de um conjunto de estudos sobre o tema feitos entre maio de 1996 e abril de 2017" (CAMBRAIA, 2017, p. XIII). O livro apresenta, de modo muito bem fundamentado, quatro partes. Da primeira, constam informações relevantes sobre a vida de Isaac de Nínive e suas obras, especificamente sobre o Livro de Isaac, seu conteúdo, circulação na Idade Média portuguesa, percurso histórico, descrição dos testemunhos que compõem a sua tradição, características linguísticas, o estema e sua fortuna editorial. Da segunda, o texto crítico, as normas de edição, os critérios para a escolha do texto-base e variantes, a transcrição, casos especiais e o aparato crítico. Da terceira, o glossário seletivo. Da quarta, o índice de citações e referências bíblicas e patrísticas.The study by César Nardelli Cambraia, published in 2017, comes to light as the first edition to disclose the critical text of the Portuguese medieval translation of the Book of Isaac, an ascetic treatise originally written in Syriac around the end of the seventh century by Isaac of Nineveh . Careful work, based on the comparison of the four surviving testimonies in which the translation was preserved. It is a critical edition with the purpose of restoring the genuine form of the text, the original form of the Portuguese translation of the book in question. As the author himself states, it is a "synthesis work of a series of studies on the subject made between May 1996 and April 2017" (CAMBRAIA, 2017, p. XIII). The book presents, in a very well-grounded way, four parts. The first one contains relevant information on the life of Isaac of Nineveh and his works, specifically on the Book of Isaac, its contents, circulation in the Portuguese Middle Ages, historical course, description of the testimonies that make up its tradition, linguistic characteristics, and his publishing fortunes. Of the second, the critical text, the norms of edition, the criteria for the choice of the base text and variants, the transcription, special cases and the critical apparatus. From the third, the selective glossary. From the fourth, the index of citations and biblical and patristic references
Newly discovered cataclysmic variables from the INT/WFC photometric Hα survey of the northern Galactic plane
No full textWe report the discovery of 11 new cataclysmic variable (CV) candidates by the Isaac Newton Telescope (INT) Photometric H alpha Survey of the northern Galactic plane (IPHAS). Three of the systems have been the subject of further follow-up observations. For the CV candidates IPHAS J013031.90+622132.4 and J051814.34+294113.2, time-resolved optical spectroscopy has been obtained and radial-velocity measurements of the H alpha emission line have been used to estimate their orbital periods. A third CV candidate (IPHAS J062746.41+014811.3) was observed photometrically and found to be eclipsing. All three systems have orbital periods above the CV period gap of 2-3 h. We also highlight an other system, IPHAS J025827.88+635234.9, whose spectrum distinguishes it as a likely high-luminosity object with unusual C and N abundances
Isaac of Nineveh\u27s Contribution to Syriac Theology: An Eschatological Reworking of Greek Anthropology
No full textThis dissertation responds to an explicitdesideratum from Robert Beulay, who, in his book La Lumière sans forme, calls for a presentation of Isaac\u27s thought with special attention to his sources.
Contrary to the belief of older scholarship, I conclude that Isaac\u27s anthropology and eschatology are much more than a Syriac repetition of Greek Evagrian thought; rather, they are influenced by John the Solitary, a Syriac author who has received less scholarly attention. Although Isaac refers to Evagrius, as well as Pseudo-Dionysius and Pseudo-Macarius, to define specific terminology, the influence of John the Solitary permeates all areas of Isaac\u27s thought.
The first part of this dissertation investigates the sources for Isaac\u27s anthropology. Isaac appropriates Evagrius\u27s definitions of the tripartite soul to explain how evil arises from the natural goodness of the soul and he uses Pseudo-Dionysius\u27s and Pseudo-Macarius\u27s definition of loving desire to explain how the soul naturally prepares the mind for the reception of heavenly knowledge, but these definitions only make sense within the context of John\u27s three degrees. The three degrees framework explains that the operation of the soul depends on the degree of ascetical renunciation performed by each monk.
The second part of this dissertation examines the sources for Isaac\u27s eschatology. Isaac rejects Evagrius\u27s eschatology, which focuses on returning the soul to the original purity of creation and instead emphasizes an eschatology in which the future state of the soul surpasses original purity. Isaac bases this future-oriented eschatology on John\u27s obsessive interest in the life of the world to come.
The third part of this dissertation investigates the sources for Isaac\u27s conception of wonder, which, I argue, is Isaac\u27s most significant contribution to Syriac theology. Wonder renders Isaac\u27s ascetical system coherent because it unifies anthropology with eschatology by accounting for the way that the material human being embraces the spiritual order of the world to come. Although Isaac turns to Evagrius and Pseudo-Dionysius in order to construct ancillary definitions for the term wonder, John\u27s conception of wonder as heavenly knowledge of the world to come is the basis for Isaac\u27s conception of the term
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