1,355,271 research outputs found
Burkle\u27s Bakery building, Memphis, 1977
No full textThe original building occupied by Burkle\u27s Bakery at 840 North Second Street, Memphis, Tennessee, photographed in 1977 by Gary Nichols. Herman Burkle moved from this site in 1936 to 2125 Madison Avenue, where the restaurant became a Memphis institution run by his children until it closed in 1976.https://digitalcommons.memphis.edu/speccoll-mss-20thcenturyphoto3/1452/thumbnail.jp
Burkle\u27s Bakery, Memphis, Tennessee, 1976
No full textBurkle\u27s Bakery was located in Overton Square in Midtown Memphis. It was a popular stop for food and socializing but rising rent prices caused the family-owned bakery to close in 1976. Photographer: Robb Mitchell.https://digitalcommons.memphis.edu/speccoll-mss-commercialappeal4/1069/thumbnail.jp
Genomic structure, conservation and FISH mapping of the Rattus norvegicus Adprt gene
No full textPoly(ADP-ribose) polymerase 1 (PARP-1) lies at the basis of a DNA-interacting protein family that maintains genome integrity. Here we describe the genomic organisation of rat PARP-1 gene (Adprt), refine its assignment to rat chromosome (RNO) 13q25-->q26 by FISH and compare its genomic organisation between rat, mouse and human. It appears that in human, mouse and rat Adprt consists of 23 similar-sized exons with well-conserved intron and exon borders. Adprt orthologs map to homologous chromosome regions at the termini of the q-arms of human and mouse chromosomes I and rat 13, with gene order being conserved between the rodents. Kimura protein distance comparison with human PARP-1 as reference revealed the bovine protein to be the least conserved with 10.3 substitutions per 100 amino acids, followed by rat (8.6) and mouse (8.4). Copyright (C) 2002 S. Karger AG, Basel
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Mujeres e internet : búsqueda de nuevos espacios sociales / M. Burkle Bonecchi.
No full textTesis de Maestría en Comunicación, Universidad Iberoamericana, Plantel Santa FeDescripción del entretejido social-tecnológico-cultural-económico en el que se encuentran insertas las relaciones de este binomio: mujer y tecnología. Se presenta un estudio empírico en donde se describe el contexto de Internet en México y lo que su uso ha significado a las comunidades virtuales femeninas. El enfoque del trabajo es desde la perspectiva de género
Discussion paper: “In situ SR-XRD study of FeCO3 precipitation kinetics onto carbon steel in CO2-containing environments: The influence of brine pH” D. Burkle et al.. Electrochimica Acta 255 (2017) 127–144
No full textBurkle et al. [1] present an elegant study using a flow cell designed to allow synchrotron X-ray diffraction study of the growth of siderite layers on carbon steel at elevated temperature in the presence of CO2 under rigorously de-oxygenated conditions. However, they state that in earlier work, “the growth of the corrosion product was accelerated by applying excessive currents/voltages (unlike in this research) to the sample under study which were not realistic of the actual corrosion kinetics encountered in the field and consequently prevented the true processes of film formation from being established”. In the present comment, the hydrodynamics of the cell of Burkle et al. are analysed using an approximate model and it is shown that the results of the different studies are in fact completely consistent, further supporting the deductions and model of the earlier work for the effects of hydrodynamics on anodic crystal growth. Further it is shown that fitting of their results to the Avrami model used in the earlier studies illustrates the transition from anodic to cathodic reaction rate control with increase of solution pH. Comparison of the different studies indeed illustrates “the true processes of film formation”. The hydrodynamic model in conjunction with that developed in previous studies implies a significant variation over the surface of the anodic electrocrystallisation rate in the cell used by Burkle et al.
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Effect of zinc on cellular poly(ADP-ribosyl)ation capacity
No full textPoly(ADP-ribosyl)ation is a posttranslational protein modification, which is catalyzed by poly(ADP-ribose) polymerase-1 (PARP-1) and plays a role in DNA repair and maintenance of genomic stability. A decrease in cellular poly(ADP-ribosyl)ation has been implicated in the aging process. As PARP-1 is a zinc finger protein its decreased function might be related to age-related zinc deficiency. To test this hypothesis we assessed cellular poly(ADP-ribosyl)ation capacity in 29 donors from Greece, Italy and Poland as function of age and nutritional zinc status. Our results reveal a positive correlation between cellular poly(ADP-ribosyl)ation capacity and zinc status in human peripheral blood mononuclear cells (PBMC) (p < 0.05). We could also confirm a decrease of PARP-1 activity with donor age, highlighting the role of poly(ADP-ribosyl)ation in the aging process. The results demonstrate that zinc supplementation in elderly people can increase the cellular poly(ADP-ribosyl)ation capacity of their PBMC. We speculate that this may help maintain integrity and stability of the genome more efficiently and thus contribute to an extension of healthspan. © 2007 Elsevier Inc. All rights reserved
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