1,721,018 research outputs found
Malaria vector mosquito images
No full textWe created a novel database of mosquito images by sampling live mosquitoes from established colonies maintained by the Malaria Research and Reference Reagent Resource (MR4)/ Biodefense and Emerging Infections (BEI) Resources at the Centers for Disease Control and Prevention (CDC) in Atlanta, GA. Adults of both sexes were imaged from 15 species of mosquitoes from there genera, 13 Anopheles, 2 Culex and 1 Aedes. There are a total of 1,709 images. We included an additional strain of An. gambiae s.s. resulting in two categories of this species: G3 and KISUMU1. Finally, for An. stephensi we captured images of mosquitoes using the two methods of storing mosquitoes, freezing versus dried samples. Images are folders labeled by genus, species, strain, sex and storage method.Files are labeled using the filenames. The file names are shown as: genus_species_sex_strain_imagenumber.jpgMosquitoes were observed under a stereomicroscope (Leica M205) with a camera attachment of a 10-megapixel digital camera. A sheet of plain white paper was placed between the light source and the field in order to diffuse the light and reduce shadows in the images. In order to increase the variability of the photos collected to allow for a more robust computational analysis, each mosquito during sampling was oriented randomly to capture the ventral, dorsal, or lateral view. This was easy to accomplish with fresh specimens and only slightly more difficult to accomplish using the dried An. stephensi specimens. The latter tended to fall to the lateral or ventral view, requiring additional time to position them dorsally. Images ranged in magnification randomly from 10 to 40x, with some images capturing the entirety of the specimen including all leg segments, and others cropping out portions of the legs.
The species and strains are the following: Anopheles arabiensis, Strain DONGOLA, MRA-856, contributed by Mark Q. Benedict; Anopheles gambiae, Strain MOPTI, MRA-763, contributed by Gregory C. Lanzaro (now called Anopheles coluzzii); Anopheles gambiae, Strain KISUMU1, MRA-762, contributed by Vincent Corbel; Anopheles gambiae, Strain G3, MRA-112, contributed by Mark Q. Benedict; Anopheles merus, Strain MAF, MRA-1156, contributed by Maureen Coetzee; Anopheles funestus, Strain FUMOZ, MRA-1027B, contributed by Maureen Coetzee; Anopheles farauti 17993, Strain FAR1, MRA-489, contributed by Mark Q. Benedict; Anopheles minimus, Strain MINIMUS1, MRA-729B, contributed by Mark Q. Benedict; Anopheles stephensi, Strain STE2, MRA-128, contributed by Mark Q. Benedict; Anopheles stephensi, Strain STE2, Bulk Frozen, MRA-128, contributed by Mark Q. Benedict; Anopheles albimanus, Strain STECLA, MRA-133B, contributed by Mark Q. Benedict; Anopheles atroparvus, Strain EBRO, MRA-493B, contributed by Carlos Aranda and Mark Q. Benedict; Anopheles freeborni, Strain F1, MRA-130, contributed by Mark Q. Benedict; Anopheles quadrimaculatus, Strain GORO, MRA-891, contributed by Mark Q. Benedict; Culex quinquefasciatus, Strain JHB, NR-43025; Culex tarsalis YOLO, NR-43026; Aedes aegypti, Strain COSTA RICA, MRA-726, contributed by William G. Brogdon
Malaria vector mosquito images 2
No full textWe created a novel database of mosquito images by sampling live mosquitoes from established colonies maintained by the Malaria Research and Reference Reagent Resource (MR4)/ Biodefense and Emerging Infections (BEI) Resources at the Centers for Disease Control and Prevention (CDC) in Atlanta, GA. Adults of both sexes were imaged from 15 species of mosquitoes from there genera, 13 Anopheles, 2 Culex and 1 Aedes. There are a total of 1,709 images. We included an additional strain of An. gambiae s.s. resulting in two categories of this species: G3 and KISUMU1. Finally, for An. stephensi we captured images of mosquitoes using the two methods of storing mosquitoes, freezing versus dried samples. Images are folders labeled by genus, species, strain, sex and storage method.Files are labeled using the filenames. The file names are shown as: genus_species_sex_strain_imagenumber.jpg.Mosquitoes were observed under a stereomicroscope (Leica M205) with a camera attachment of a 10-megapixel digital camera. A sheet of plain white paper was placed between the light source and the field in order to diffuse the light and reduce shadows in the images. In order to increase the variability of the photos collected to allow for a more robust computational analysis, each mosquito during sampling was oriented randomly to capture the ventral, dorsal, or lateral view. This was easy to accomplish with fresh specimens and only slightly more difficult to accomplish using the dried An. stephensi specimens. The latter tended to fall to the lateral or ventral view, requiring additional time to position them dorsally. Images ranged in magnification randomly from 10 to 40x, with some images capturing the entirety of the specimen including all leg segments, and others cropping out portions of the legs.
The species and strains are the following: Anopheles arabiensis, Strain DONGOLA, MRA-856, contributed by Mark Q. Benedict; Anopheles gambiae, Strain MOPTI, MRA-763, contributed by Gregory C. Lanzaro (now called Anopheles coluzzii); Anopheles gambiae, Strain KISUMU1, MRA-762, contributed by Vincent Corbel; Anopheles gambiae, Strain G3, MRA-112, contributed by Mark Q. Benedict; Anopheles merus, Strain MAF, MRA-1156, contributed by Maureen Coetzee; Anopheles funestus, Strain FUMOZ, MRA-1027B, contributed by Maureen Coetzee; Anopheles farauti 17993, Strain FAR1, MRA-489, contributed by Mark Q. Benedict; Anopheles minimus, Strain MINIMUS1, MRA-729B, contributed by Mark Q. Benedict; Anopheles stephensi, Strain STE2, MRA-128, contributed by Mark Q. Benedict; Anopheles stephensi, Strain STE2, Bulk Frozen, MRA-128, contributed by Mark Q. Benedict; Anopheles albimanus, Strain STECLA, MRA-133B, contributed by Mark Q. Benedict; Anopheles atroparvus, Strain EBRO, MRA-493B, contributed by Carlos Aranda and Mark Q. Benedict; Anopheles freeborni, Strain F1, MRA-130, contributed by Mark Q. Benedict; Anopheles quadrimaculatus, Strain GORO, MRA-891, contributed by Mark Q. Benedict; Culex quinquefasciatus, Strain JHB, NR-43025; Culex tarsalis YOLO, NR-43026; Aedes aegypti, Strain COSTA RICA, MRA-726, contributed by William G. Brogdon
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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