1,721,182 research outputs found
"Il successo di Eshkol Nevo e la normalizzazione della letteratura ebraica"
Full text linkEshkol Nevo e la letteratura israeliana degli ultimi vent'anni
New, noteworthy, and rare species of the genus Boletus in Israel
No full textThis paper presents information about Boletus poikilochromus, B. pulchrotinctus, and B. pulverulentus in Israel. These species are reported for the first time in Israel, and also B. pulchrotinctus and B. poikilochromus are reported for the first time in Asia. Furthermore, these three species are reported for the first time in association with Quercus calliprinos. Macro- and microscopical characteristics, distribution, ecology, and illustrations related to morphology and anatomy of the species are provided
Rare and noteworthy lepiotaceous species (Basidiomycota, Agaricales, Agaricaceae) from Israel
No full textAlthough the family Agaricaceae has been the focus of interest for many studies (e.g. Kühner 1936, Babos 1979, Wasser 1980, Bon 1981, Candusso & Lanzoni 1990, Guzmán & Guzmán-Dávalos 1992, Vellinga 2001), it has not been included in inventories of Israeli mycobiota. However, three out of the four agaricaceous tribes as delimited by Singer (1986) and Wasser (1980) are represented in Israel: Agariceae Pat., Leucocoprineae Singer, and Lepioteae Fayod. Wasser (1995, 1996, 1997, 1998, 2000, 2002) has published his reevaluations of earlier data regarding Israeli taxa in the tribe Agariceae and reported on 43 taxa representing four genera in Agariceae (Wasser 2002). Other tribes, which have not been well studied, require further study. Fragmentary data on some Leucocoprineae and Lepioteae species is available in more general publications on the higher basidiomycetes of Israel (Avizohar-Hershenzon 1967, Binyamini 1973, 1974, 1975, 1976a,b,c, 1984, 1989; Didukh et al. 2002, 2004; Reichert & Avizohar-Hershenzon 1953, 1955, 1959). Our literature review identified the following 28 lepiotaceous species: Chlorophyllum molybdites (G. Mey.) Massee, Macrolepiota excoriata (Schaeff.) M.M. Moser, M. fuligineosquarrosa Malençon, M. mastoidea (Fr.) Singer, M. procera (Scop.) Singer, M. prominens (Fr.) M.M. Moser, M. rachodes (Vittad.) Singer, Leucoagaricus carneifolius (Gillet) Wasser, La. leucothites (Vittad.) Wasser, La. littoralis (Menier) M. Bon & Boiffard, La. wichanskyi (Pilát) M. Bon & Boiffard, Chamaemyces carmelensis M. Didukh & Wasser, Ch. fracidus (Fr.) Donk, Leucocoprinus birnbaumii (Corda) Singer, Lc. cretatus Locq. ex Lanzoni, Lepiota alba (Bres.) Sacc., L. brunneoincarnata Chodat & C. Martin, L. brunneolilacea M. Bon & Boiffard, L. castanea Quél., L. clypeolaria (Bull.) P. Kumm., L. echinella Quél. & G. E. Bernard, L. helveola Bres., L. lilacina (Quél.) Boud., L. micropholis (Berk. & Broome) Sacc., L. oreadiformis Velen., L. scobinella (Fr.) Gillet, L. serena (Fr.) Sacc., and L. setulosa J.E. Lange. As a result of our investigation, four species of lepiotaceous fungi are reported from Israel for the first time: Leucoagaricus pilatianus, Lepiota apatelia, L. subgracilis and Macrolepiota konradii
Ecogeographic adaptation and genetic variation in wild barley. Application of molecular markers targeted to environmentally regulated genes
No full textRepetitive DNA and chromosomal rearrangements: speciation-related events in plant genomes
No full textChromosomal change is one of the more hotly debated potential mechanisms of speciation. It has long been argued over whether--and to what degree--changes in chromosome structure contribute to reproductive isolation and, ultimately, speciation. In this review we do not aim to completely analyze accumulated data about chromosomal speciation but wish to draw attention to several critical points of speciation-related chromosomal change, namely: (a) interrelations between chromosomal rearrangements and repetitive DNA fraction; (b) mobility of ribosomal DNA clusters; and (c) rDNA and transposable elements as perpetual generators of genome instabilit
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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