203 research outputs found
A tücsök meg a hangyák
No full textThis children's book is composed of seven thick boards bound together. On the cover a grasshopper with moustache sits on a mushroom playing his fiddle as a row of ants marches by carrying or rolling food and an ant-baby. The next pages expand on their labors. They include a cut-out portion that looks past their hill to the flowers. On the following pages ants continue their workline while, I believe, young grasshoppers dance about and the older grasshopper continues to fiddle. Succeeding pages show more ant work, including carrying off a dead or exhausted ant on a stretcher. And we see lots of grasshopper fiddlers while other ants push carts full of food, both by day and by night. Soon there are rains and snows, and an ant finds the grasshopper lying next to his fiddle on the ground. The ants take him in, feed him, and dance to his music. I believe it is typical of the East Block countries that a Hungarian book was executed in Czechoslovakia. Might there have been a Czech original?Language note: Hungaria
Knock-out of the genes coding for the Rieske protein and the ATP-synthase delta-subunit of Arabidopsis. Effects on photosynthesis, thylakoid protein composition, and nuclear chloroplast gene expression
No full textIn Arabidopsis, the nuclear genes PetC and AtpD code for the Rieske protein of the cytochrome b6/f (cyt b6/f) complex and the δ-subunit of the chloroplast ATP synthase (cpATPase), respectively. Knock-out alleles for each of these loci have been identified. Greenhouse-grown petc-2 and atpd-1 mutants are seedling lethal, whereas heterotrophically propagated plants display a high-chlorophyll (Chl)-fluorescence phenotype, indicating that the products of PetC and AtpD are essential for photosynthesis. Additional effects of the mutations in axenic culture include altered leaf coloration and increased photosensitivity. Lack of the Rieske protein affects the stability of cyt b6/f and influences the level of other thylakoid proteins, particularly those of photosystem II. In petc-2, linear electron flow is blocked, leading to an altered redox state of both the primary quinone acceptor QA in photosystem II and the reaction center Chl P700 in photosystem I. Absence of cpATPase-δ destabilizes the entire cpATPase complex, whereas residual accumulation of cyt b6/f and of the photosystems still allows linear electron flow. In atpd-1, the increase in non-photochemical quenching of Chl fluorescence and a higher de-epoxidation state of xanthophyll cycle pigments under low light is compatible with a slower dissipation of the transthylakoid proton gradient. Further and clear differences between the two mutations are evident when mRNA expression profiles of nucleus-encoded chloroplast proteins are considered, suggesting that the physiological states conditioned by the two mutations trigger different modes of plastid signaling and nuclear response
It is not magic, it is smith: Comparison in a study of Jewish theology
No full textIn a search for a theoretical framework that would structure and orient a comparative analysis of diverse Jewish theological responses to the Holocaust, the author reached for J.Z. Smith’s discussions of comparative enterprise. The questions of similarity, difference and of the putative goal of comparison loomed large over her project. In J.Z. Smith’s work, the author found helpful clues, illuminating insights as well as somewhat confusing and counterintuitive examples
It is not magic, it is smith: Comparison in a study of Jewish theology
No full textIn a search for a theoretical framework that would structure and orient a comparative analysis of diverse Jewish theological responses to the Holocaust, the author reached for J.Z. Smith’s discussions of comparative enterprise. The questions of similarity, difference and of the putative goal of comparison loomed large over her project. In J.Z. Smith’s work, the author found helpful clues, illuminating insights as well as somewhat confusing and counterintuitive examples.acceptedVersion© 2019. This is the authors' accepted and refereed manuscript. Locked until 12 February 2021 due to copyright restrictions. The final authenticated version is available online at: https://doi.org/10.1163/15700682-12341460
Embedding of rank two supercharges in the superconformal algebra
No full textFunding Information: P.D.A. acknowledges MINEDUC-UA Project ANT 1755 and Semillero de Investigacion Project SEM18-02 from Universidad de Antofagasta, Chile. J.Z. was partially supported by Fondecyt/ANID-Chile through Grant No. 1180368. Publisher Copyright: © 2022 Author(s).We discuss an embedding of su(n) rank two antisymmetric supercharges in the su(2, 2|dn) superalgebra, where dn = n(n - 1)/2. We describe an algorithm to construct the explicit form of the generators of the superalgebra
Schaeffer est mort! Long live Schaeffer!
No full textThis paper examines two groups of composers and discusses the commonality in their approach to using concrete sound materials and rhythm in their works. As a result of this commonality an examination of the ways in which these composers have expanded the electroacoustic language through the hybridisation of electronica and musique concrete techniques is undertaken. It will then be demonstrated how these works, whilst pushing at the boundaries of electroacoustic music can nevertheless be discussed and analysed with reference to Emmerson’s language grid as originally proposed in The Relation of Language to Materials (1986: 17-39). It will be demonstrated how, with the advent of the sampler and proliferation of works utilizing concrete materials, Emmerson’s language grid can be used as the basis for a wider discussion of electronic works
Zimmerman - Leander M. Zimmerman
No full textA.B.; A.M., 1887; Phi Beta Kappa; Philomathaean. Entered Preparatory, 1878. Grad. Gettysburg Seminary, 1887; D.D., Susquehanna U., 1901. Born Aug. 29, 1860, or August 22, 1861, Manchester, Md. Parents, Henry and Leah. Brother of J.Z., class of 1873. Lutheran clergyman: Baltimore, Md., 1887-1925; pastor-emeritus, Christ Church, Baltimore, Md., 1925- . Member, Home Miss. Bd., 1899-1908; pres. of Deaconess Bd.; past pres. of Md. Synod; director, Gettysburg Seminary, 1909- ; past pres., Baltimore Min. Assoc. Author: Paths That Cross; Yvonne; Sparks; Cordelia; Dot; Echoes from Battlefield; For Love's Sake; Reminiscences; The Gospel Minister; and many booklets on social and religious subjects. Address: Burlington Hotel, Washington D.C
Computer-assisted preoperative planning of bone fracture fixation surgery: A state-of-the-art review
No full textBackground: Bone fracture fixation surgery is one of the most commonly performed surgical procedures in the orthopedic field. However, fracture healing complications occur frequently, and the choice of the most optimal surgical approach often remains challenging. In the last years, computational tools have been developed with the aim to assist preoperative planning procedures of bone fracture fixation surgery.Objectives: The aims of this review are 1) to provide a comprehensive overview of the state-of-the-art in computer-assisted preoperative planning of bone fracture fixation surgery, 2) to assess the clinical feasibility of the existing virtual planning approaches, and 3) to assess their clinical efficacy in terms of clinical outcomes as compared to conventional planning methods.Methods: A literature search was performed in the MEDLINE-PubMed, Ovid-EMBASE, Ovid-EMCARE, Web of Science, and Cochrane libraries to identify articles reporting on the clinical use of computer-assisted preoperative planning of bone fracture fixation.Results: 79 articles were included to provide an overview of the state-of-the art in virtual planning. While patient-specific geometrical model construction, virtual bone fracture reduction, and virtual fixation planning are routinely applied in virtual planning, biomechanical analysis is rarely included in the planning framework. 21 of the included studies were used to assess the feasibility and efficacy of computer-assisted planning methods. The reported total mean planning duration ranged from 22 to 258 min in different studies. Computer-assisted planning resulted in reduced operation time (Standardized Mean Difference (SMD): -2.19; 95% Confidence Interval (CI): -2.87, -1.50), less blood loss (SMD: -1.99; 95% CI: -2.75, -1.24), decreased frequency of fluoroscopy (SMD: -2.18; 95% CI: -2.74, -1.61), shortened fracture healing times (SMD: -0.51; 95% CI: -0.97, -0.05) and less postoperative complications (Risk Ratio (RR): 0.64, 95% CI: 0.46, 0.90). No significant differences were found in hospitalization duration. Some studies reported improvements in reduction quality and functional outcomes but these results were not pooled for meta-analysis, since the reported outcome measures were too heterogeneous.Conclusion: Current computer-assisted planning approaches are feasible to be used in clinical practice and have been shown to improve clinical outcomes. Including biomechanical analysis into the framework has the potential to further improve clinical outcome.Biomaterials & Tissue Biomechanic
Stanisław August Morawski – an outstanding, non-media figure of the Polish community in Italy
No full textThe aim of the article is to present the biography of Stanislaw August Morawski (1922–2019) – an outstanding figure of the Italian Polonia, who avoided media publicity. On the basis of a few available book sources and biographies published after his death in the Polish and Polonia press, introduced his life in Poland and in Italy and a huge number of his activities for Poland, Poles and the Polish community in Italy. S. Morawski was, among others, for many years the president of the Rome Foundation J.Z. Umiastowska, the Lanckoroński Foundation, co-founder of the Union of Poles in Italy and a member of its board, author of many publications on the history of Poles in the Apennine Peninsula.Celem artykułu jest przedstawienie biografii Stanisława Augusta Morawskiego (1922–2019) – wybitnej postaci Polonii włoskiej, a jednocześnie osoby, która unikała rozgłosu medialnego. Na podstawie niewielu dostępnych źródeł książkowych i opublikowanych już po Jego śmierci artykułów wspomnieniowych w prasie polonijnej i polskiej przedstawiono zarówno polskie, jak i włoskie, koleje Jego życia oraz ogrom działań na rzecz Polski, Polaków i Polonii we Włoszech. S. Morawski był, między innymi, wieloletnim prezesem Fundacji Rzymskiej im. J.Z. Umiastowskiej, Fundacji Lanckorońskich, współtwórcą Związku Polaków we Włoszech i członkiem jej zarządu, autorem wielu publikacji dotyczących historii Polaków na Półwyspie Apenińskim
THE LOW-LYING XCN BENDING MODES OF THE QUASILINEAR MOLECULES ClCNO AND BrCNO
No full text C.W. Gillies, J.Z. Gillies, H. Lichau, B.P. Winnewisser, and M. Winnewisser, Chem. Phys. Lett. 285, 391-397 (1998) H. Lichau, B.P. Winnewisser, M. Winnewisser, C.W. Gillies, and J.Z. Gillies, Int. Symposium, talk TH09 (1998) T. Barrow, R.N. Dixon, and G. Duxbury, Mol. Phys. 27, 1217-1234 (1974) K.M.T. Yamada and M. Winnewisser, Z. Naturforsch. 31a, 139-144 (1976)Author Institution: Department of Physics, University of New Brunswick; Physikalisch-Chemisches Institut, Justus-Liebig-Universit\""{a}tFrom the satellite structures in the a-type rotational spectra, the halofulminates ClCNO and BrCNO have been shown to be extremely quasilinear molecules, definitely more quasilinear than fulminic acid HCNO and roughly comparable to carbon suboxide . In order to obtain a more fundamental description of the quasilinear dynamics, we have determined effective bending potentials for the anharmonic XCN bending modes of the two molecules by semirigid bender analyses of the a-type rotational data. Fitting Barrow-Dixon-Duxbury potential , the effective barriers to linearity have been determined to be 167 and , the origins of the branches in the vibrational ground states to be 17.7 and , and the quasilinearity parameters to be +0.416 and +0.362, respectively. These results will be compared to some results published for several other chain molecules
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