814 research outputs found
Henri Temianka Correspondence; (toth)
No full textThis collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/4215/thumbnail.jp
Two extensions of the Erdis-Szekeres problem
No full textAccording to Suk's breakthrough result on the Erdos-Szekeres problem, any point set in general position in the plane, which has no n elements that form the vertex set of a convex n-gon, has at most 2(n)+ O(n(2/3) log n) points. We strengthen this theorem in two ways. First, we show that the result generalizes to convexity structures induced by pseudoline arrangements. Second, we improve the error term. A family of n convex bodies in the plane is said to be in convex position if the convex hull of the union of no n - 1 of its members contains the remaining one. If any three members are in convex position, we say that the family is in general position. Combining our results with a theorem of Dobbins, Holmsen, and Hubard, we significantly improve the best known upper bounds on the following two functions, introduced by Bisztriczky and Fejes Toth and by Pach and Toth, respectively. Let c(n) (and c'(n)) denote the smallest positive integer N with the property that any family of N pairwise disjoint convex bodies in general position (resp., N convex bodies in general position, any pair of which share at most two boundary points) has an n-member subfamily in convex position. We show that c(n) <= c' (n) <= 2(n+O)(root n log n).
Alex Toth and another Librarian examining a card catalog
No full textAlex Toth, who was a Librarian at Pacific University, and another Librarian (possibly Patricia Sobottka?), examining a card catalog in Pacific's Scott Library in July, 1978. This appears to be the Author catalog, which provided access to the books in Pacific's collections based on the last name of the author. This is one of a set of photographs that appears to have been posed in order to demonstrate the range of work that was taking place in the library
Erdös-Szekeres-type theorems for segments and non-crossing convex sets
No full textA family F of convex sets is said to be in convex position, if none of its members is contained in the convex hull of the others. It is proved that there is a function N(n) with the following property. If F is a family of at least N(n) plane convex sets with non-empty interiors, such that any two members of F have at most two boundary points in common and any three are in convex position, then F has n members in convex position. This result generalizes a theorem of T. Bisztriczky and G. Fejes Toth [BF1]. The statement does not remain true, if two members of F may share four boundary points. This follows from the fact that there exist infinitely many straight-line segments such that any three are in convex position, but no four are. However, there is a function M(n) such that every family of at least M(n) segments, any four of which are in convex position, has n members in convex position. 1 Introduction Erdos and Szekeres [ES1], [ES2] proved that any set of more than ..
Effectiveness of hypnosis for pain management in colorectal surgery: project proposal for a systematic review
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The Autonarratives of Ernest Hemingway (and Others)
No full textDraws on the theories of Kenneth Burke, Julia Kristeva, and others in his examination of the complexity of self-representation found in A Moveable Feast. Toth analyzes Hemingway’s fictional construction of personal experience in “Miss Stein Instructs,” “Ford Madox Ford and the Devil’s Disciple,” “Birth of a New School,” and elsewhere. Concludes that the discreet sketches “emerge as a series of accurate yet always also contingent portraits—of Hemingway as a young author, of other famous writers working in the same place and time, of the specific events that defined the function of writing during the ‘Paris movement.’
Purinergic signalling is required for calcium oscillations in migratory chondrogenic progenitor cells
No full textOsteoarthritis (OA) is the most common form of chronic musculoskeletal disorders. A migratory stem cell population termed chondrogenic progenitor cells (CPC) with in vitro chondrogenic potential was previously isolated from OA cartilage. Since intracellular Ca2+ signalling is an important regulator of chondrogenesis, we aimed to provide a detailed understanding of the Ca2+ homeostasis of CPCs. In this work, CPCs immortalised by lentiviral administration of the human telomerase reverse transcriptase (hTERT) and grown in monolayer cultures were studied. Expressions of all three IP(3)Rs were confirmed, but no RyR subtypes were detected. Ca2+ oscillations observed in CPCs were predominantly dependent on Ca2+ release and store replenishment via store-operated Ca2+ entry; CPCs express both STIM1 and Orai1 proteins. Expressions of adenosine receptor mRNAs were verified, and adenosine elicited Ca2+ transients. Various P2 receptor subtypes were identified; P2Y(1) can bind ADP; P2Y(4) is targeted by UTP; and ATP may evoke Ca2+ transients via detected P2X subtypes, as well as P2Y(1) and P2Y(2). Enzymatic breakdown of extracellular nucleotides by apyrase completely abrogated Ca2+ oscillations, suggesting that an autocrine/paracrine purinergic mechanism may drive Ca2+ oscillations in these cells. As CPCs possess a broad spectrum of functional molecular elements of Ca2+ signalling, Ca2+-dependent regulatory mechanisms can be supposed to influence their differentiation potential
LINE WIDTHS OF AND
No full textAuthor Institution:Collision broadened line widths of and were determined from high resolution spectra covering the bands for both absorbing molecules. The line widths encompassed the spectral regions of the (1200), (2000), (0111), (0201), (1001) and (0002) bands. The band notation is . The and measurements were obtained for samples at room temperature and the spectra were obtained for samples at and . The ) values are compared to best-fit calculated values given in an earlier study by R. A. Toth, J. Mol. Spectrosc. 40, 605-615 (1971)
toth_janos.pdf
No full textIn the literature of sociology of religion, there is a considerable scarcity of recent thematic
meta-analyses. In this paper, we demonstrate the usefulness of such analyses to study thematic and
spatial patterns of Christianity-focused results presented in high-impact journals. First, we created a new
sampling and data cleaning protocol for collecting and selecting data from EBSCO and journal websites.
Categorization was inductive and based on Grounded Theory. During the process, we identified eleven
major themes in Christianity-focused research; each of these further divided into subtopics. Than all
selected articles were further investigated in terms of first author affiliation, journal editor affiliation and
journal publisher’s geographic location. Results shows that the analysis we have performed concerning 160
articles published in „A”-category international journals provided not only a structured overview of current
themes in Christianity-focused research within the field, but also identified a major anglo-saxon research
environment bias valid through both religion-specific and general studies
Lactuca sativa subsp. seed
No full text2.3. Activity of isolated compounds on the seed germination of Lactuca sativa and on the growth of Lemna minor plants Metabolites of endophytic fungi can protect the host plants against various classes of pests (like pathogenic fungi, parasitic nematodes, herbivorous insects, etc.) thus, indirectly promoting plant growth (Li and Strobel, 2001; Schwarz et al., 2004; Schardl et al., 2007). Some volatile organic compounds were also confirmed as enhancers of plant development, affecting directly the plants (Berthelot et al., 2016). However, several endophytic metabolites have been shown to be phytotoxic, inhibiting growth of the plants (Choi et al., 2004) and their seedlings (Rivero-Cruz et al., 2003; García-M´endez et al., 2016; Wang et al., 2020). To test the effects of our isolated metabolites on plants, two standardized assays, i.e., the Lactuca sativa seed germination- and the Lemna minor growth test, both having international recommendations, were performed (Priac et al., 2017; Vanhoutte et al., 2017). Neither the seed germination nor the reproduction and leaf development were affected by the metabolites of F. fulophazii, suggesting their no direct effects on plants (Supplementary Figs. S9 and S10).Published as part of Berek-Nagy, Peter Janos, Gergo Toth, Szilvia Bosze, Lilla Borbala Horvath, Andras Darcsi, Sandor Csikos, Daniel G. Knapp, Gabor M. Kovacs & Imre Boldizsar, 2021, The grass root endophytic fungus Flavomyces fulophazii: An abundant source of tetramic acid and chlorinated azaphilone derivatives, pp. 1-11 in Phytochemistry (112851) (112851) 190 on pages 7-8, DOI: 10.1016/j.phytochem.2021.112851, http://zenodo.org/record/827310
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