1,721,818 research outputs found
Spatially heterogeneous inhibition projects sequential activity onto unique neural subspaces
No full textOpen-Access-Publikationsfonds 202
FIGURES 26–30 in Description of five new eulophid species (Hymenoptera: Eulophidae) associated with leaf vein galls of Madhuca longifolia (J. Koenig) (Sapotaceae) in India
No full textFIGURES 26–30. Selitrichodes madhucae Singh & Kaneria sp. nov., male: 26a–d, dorsal views of body showing color variations; 27, frontal view of head, in wet condition after KOH treatment; 28, posterior view of head, in wet condition after KOH treatment; 29, antenna, in wet condition after KOH treatment; 30, mesosoma in dorsal view.Published as part of Singh, Sudhir, Kumar, Arvind & Kaneria, Manish, 2022, Description of five new eulophid species (Hymenoptera: Eulophidae) associated with leaf vein galls of Madhuca longifolia (J. Koenig) (Sapotaceae) in India, pp. 1-36 in Zootaxa 5129 (1) on page 9, DOI: 10.11646/zootaxa.5129.1.1, http://zenodo.org/record/648799
Quadrastichus Girault 1913
No full textGenus Quadrastichus Girault Quadrastichus Girault, 1913d: 232, 252. Type species: Quadrastichus nigrinotatus Girault, by original designation. Quadrastichus was synonymised with Aprostocetus by Bouček (1988). Graham & La Salle (1991) resurrected it from the synonymy and revised its status as a senior synonym of Cecidotetrastichus Kostjukov. A complete synonymy list for Quadrastichus is provided by Graham (1991). Generic keys which would allow identification to Quadrastichus are provided by Graham (1987 as Cecidotetrastichus), La Salle (1994), Schauff et al. (1997) and Narendran (2007). Many species of Quadrastichus are associated with galls, usually as endoparasitoids of Diptera Cecidomyiidae and Hymenoptera Cynipidae. Its other hosts include Coleoptera Curculionidae and Buprestidae (Graham 1991; La Salle 1994; Noyes 2019). Kim et al. (2004) recorded one species as an invasive pest inducing galls on coral trees (Erythrina spp.: Fabaceae). In total 89 species are reported worldwide (Noyes 2019) including 25 species from India. Narendran (2007) provided a key to the Oriental species.Published as part of Singh, Sudhir, Kumar, Arvind & Kaneria, Manish, 2022, Description of five new eulophid species (Hymenoptera: Eulophidae) associated with leaf vein galls of Madhuca longifolia (J. Koenig) (Sapotaceae) in India, pp. 1-36 in Zootaxa 5129 (1) on page 21, DOI: 10.11646/zootaxa.5129.1.1, http://zenodo.org/record/648799
Chrysonotomyia Ashmead
No full textGenus Chrysonotomyia Ashmead Chrysonotomyia Ashmead, 1904: 344. Type species Eulophus auripunctatus Ashmead, by monotypy and original designation. For more complete lists of synonymies see Bouček (1988), Schauff (1991) and Noyes (2019). Chrysonotomyia is a cosmopolitan genus currently with 172 described species (Noyes 2019). It is predominantly Neotropical (107 species described); 12 species are known from India (Noyes 2019). Chrysonotomyia species are reported as primary egg and larval parasitoids of leaf-mining Diptera (Agromyzidae, Cecidomyiidae), Coleoptera (Buprestidae and Chrysomelidae) and some hemipterous insects (Schauff 1991, Noyes 2019). Some important taxonomic works on the genus are by Askew (1979) (NW European species), Bouček (1988) (Australasian species), Hansson 1990 (Palearctic species), Hansson 2004 (Neotropical species) and Jamali (2018) (Indian species).Published as part of Singh, Sudhir, Kumar, Arvind & Kaneria, Manish, 2022, Description of five new eulophid species (Hymenoptera: Eulophidae) associated with leaf vein galls of Madhuca longifolia (J. Koenig) (Sapotaceae) in India, pp. 1-36 in Zootaxa 5129 (1) on page 26, DOI: 10.11646/zootaxa.5129.1.1, http://zenodo.org/record/648799
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
Aprostocetus Westwood 1833
No full textGenus Aprostocetus Westwood Aprostocetus Westwood, 1833: 444. Type species, Aprostocetus caudatus, by monotypy. For more complete lists of synonymies see Graham (1987), Bouček (1988), LaSalle (1994) and Noyes (2019). Aprostocetus is the largest and most diverse genus in the subfamily Tetrastichinae with about 813 described species worldwide (Noyes 2019). Aprostocetus species parasitize a wide variety of hosts, which are often insects inhabiting a variety of plant galls, including Diptera, Hymenoptera, Coleoptera, Coccoidea and even eriophyid mites and nematodes (Graham 1987, La Salle 1994). Species in the genus exhibit extensive biological and morphological diversity (La Salle et al. 2009) and it has therefore been subdivided into six subgenera (Graham 1987, La Salle 1994). Generic keys including Aprostocetus are available for Australasia (Bouček 1988), North America (LaSalle 1994, Schauff et al. 1997), Europe (Graham 1987) and India (Narendran 2007) but keys to species are available only for the European (Graham 1987) and Indian (Narendran 2007) fauna. Both species of Aprostocetus reared from leaf vein galls of M. longifolia are found to be new and described below. They can most suitably be assigned to subgenus Aprostocetus in the key by Graham (1987) but have affinities to other subgenera; these are discussed under the ‘comments’ section of each species.Published as part of Singh, Sudhir, Kumar, Arvind & Kaneria, Manish, 2022, Description of five new eulophid species (Hymenoptera: Eulophidae) associated with leaf vein galls of Madhuca longifolia (J. Koenig) (Sapotaceae) in India, pp. 1-36 in Zootaxa 5129 (1) on page 12, DOI: 10.11646/zootaxa.5129.1.1, http://zenodo.org/record/648799
Derivatization, an Applicable Asset for Conventional HPLC Systems without MS Detection in Food and Miscellaneous Analysis
No full textOne of the most valuable practices for analyzing not-so-analytical-friendly analytes in complex, heterogenous matrices is derivatization. Availability of numerous derivatizing reagents (DRs) makes the modification of analyte more exploitable in terms of an analytical perspective. A wide array of derivatization techniques like pre or post-column, in-situ, enzymatic, ultrasound-assisted, microwave-assisted, photochemical derivatization has added much-needed methodological strength in analyzing intricate analytical matrices (food, water, and soil). In recent years, analytical chemistry has achieved greater heights through the development of new sensitive methods with simple conventional instruments like High-Performance Liquid Chromatography (HPLC) devoid of Mass detectors. The prompt availability of these straightforward instruments also makes it a favorable option for routine analysis in food, environmental, bioanalytical chemistry. Analyzing food, environmental or bioanalytical specimen has some of the most problematic aspects, like the low concentration of the analytes accompanied by not too suitable analytical properties. Even though conventional HPLC lacks the required sensitivity but merger with derivatization can lead to a remarkable increase in sensitivity. In recent years there has been a lot of application of diverse derivatizations to increase the sensitivity and selectivity of the analyte for available instruments, resulting in notable findings. Therefore, this review describes the application of derivatization principles in the analysis of analytes in food and additional matrices using conventional HPLC instruments such as HPLC-UV, HPLC-DAD, and HPLC-FD. In this article, we will briefly review the different modes and multiple types of derivatizing reagents with their mechanisms and importance for encouraging the use of established HPLC instruments
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
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