1,721,013 research outputs found
The larval morphology and nest habits of Trypoxylon (Trypargilum) rogenhoferi Kohl 1884 (Insecta: Hymenoptera: Crabronidae)
No full textFox, Eduardo Gonçalves Paterson, Solis, Daniel Russ, Rossi, Mônica Lanzoni, Feitosa, Rodrigo Machado, Brescovit, Antonio Domingos (2012): The larval morphology and nest habits of Trypoxylon (Trypargilum) rogenhoferi Kohl 1884 (Insecta: Hymenoptera: Crabronidae). Zootaxa 3251 (1): 47-56, DOI: 10.11646/zootaxa.3251.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.3251.1.
FIGURE 1 in The larval morphology and nest habits of Trypoxylon (Trypargilum) rogenhoferi Kohl 1884 (Insecta: Hymenoptera: Crabronidae)
No full textFIGURE 1. Scanning electron micrograph of Trypoxylon rogenhoferi egg. Scale bar: 400 µm.Published as part of Fox, Eduardo Gonçalves Paterson, Solis, Daniel Russ, Rossi, Mônica Lanzoni, Feitosa, Rodrigo Machado & Brescovit, Antonio Domingos, 2012, The larval morphology and nest habits of Trypoxylon (Trypargilum) rogenhoferi Kohl 1884 (Insecta: Hymenoptera: Crabronidae), pp. 47-56 in Zootaxa 3251 (1) on page 48, DOI: 10.11646/zootaxa.3251.1.3, http://zenodo.org/record/524920
FIGURE 1 in On the immature stages of the crazy ant Paratrechina longicornis (Latreille 1802) (Hymenoptera: Formicidae)
No full textFIGURE 1. Eggs of Paratrechina longicornis. A — profile in optical microscopy with indirect illumination. B — Profile examined by scanning electronic microscopyPublished as part of Fox, Eduardo Gonçalves Paterson, Solis, Daniel Russ, Jesus, Carlos Massuretti De, Bueno, Odair Correa, Yabuki, Antonio Teniyoshi & Rossi, Mônica Lanzoni, 2007, On the immature stages of the crazy ant Paratrechina longicornis (Latreille 1802) (Hymenoptera: Formicidae), pp. 1-11 in Zootaxa 1503 (1) on page 3, DOI: 10.11646/zootaxa.1503.1.1, http://zenodo.org/record/508695
FIGURE 2 in The larval morphology and nest habits of Trypoxylon (Trypargilum) rogenhoferi Kohl 1884 (Insecta: Hymenoptera: Crabronidae)
No full textFIGURE 2. Morphological aspects of the first instar larva of Trypoxylon rogenhoferi. A—Head capsule; B—Right mandible; C—Thoracic spiracle; D—Body integument surface; E—detail on spinules of body surface. Asterisk = tentorial pit; cl = clypeus; lr = labrum. Scale bars (µm): 200; 40; 20; 300; 25.Published as part of Fox, Eduardo Gonçalves Paterson, Solis, Daniel Russ, Rossi, Mônica Lanzoni, Feitosa, Rodrigo Machado & Brescovit, Antonio Domingos, 2012, The larval morphology and nest habits of Trypoxylon (Trypargilum) rogenhoferi Kohl 1884 (Insecta: Hymenoptera: Crabronidae), pp. 47-56 in Zootaxa 3251 (1) on page 49, DOI: 10.11646/zootaxa.3251.1.3, http://zenodo.org/record/524920
FIGURE 4 in On the immature stages of the crazy ant Paratrechina longicornis (Latreille 1802) (Hymenoptera: Formicidae)
No full textFIGURE 4. Second larval instar of Paratrechina longicornis. A — Side view examined by scanning electronic microscopy. B — Side view examined by optical microscopy with indirect illumination. C — Ventral view examined by scanning electronic microscopy.Published as part of Fox, Eduardo Gonçalves Paterson, Solis, Daniel Russ, Jesus, Carlos Massuretti De, Bueno, Odair Correa, Yabuki, Antonio Teniyoshi & Rossi, Mônica Lanzoni, 2007, On the immature stages of the crazy ant Paratrechina longicornis (Latreille 1802) (Hymenoptera: Formicidae), pp. 1-11 in Zootaxa 1503 (1) on page 7, DOI: 10.11646/zootaxa.1503.1.1, http://zenodo.org/record/508695
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
Biologia da formiga urbana Monomorium floricola Jerdon (Hymenoptera, Formicidae)
No full textMonomorium floricola é uma espécie cosmopolita, adaptada ao meio urbano, que ocasiona incômodos em residências e hospitais. Poucos estudos foram efetuados com esta espécie e para o melhor conhecimento desta formiga, que possa ser utilizado em programas de manejo de pragas, o presente estudo teve como objetivo: analisar a interação com outras formigas urbanas; estudar o comportamento alimentar; descrever a morfologia externa das larvas e adultos reprodutores; verificar possíveis causas para o surgimento de anomalias nas formas reprodutoras; descrever o trato digestório; analisar a tolerância térmica das operárias; e verificar alguns fatores que poderiam interferir na fecundidade das rainhas virgens. As operárias de M. floricola se mostraram mais ofensivas em seu território e defensivas em outros territórios, com o comportamento sendo dependente da espécie de formiga com o qual interage. Com relação ao forrageamento: as substâncias açucaradas foram mais atrativas do que as gordurosas, as operárias despenderam mais tempo na coleta de substâncias açucaradas mais concentradas, e preferiram alimentos em maior quantidade e mais próximas ao ninho. As larvas de M. floricola se diferenciam das outras espécies do gênero, por apresentarem uma maior diversidade de pêlos e terem um número diferente de sensilas nos palpos. Os adultos reprodutores foram descritos com um maior detalhamento, fator importante para analisar com uma maior exatidão as formas anômalas. As anomalias não são causadas pelo choque térmico ou por bactérias simbiontes. O trato digestório das duas espécies de Monomorium apresentou algumas particularidades: a presença de espinhos no papo, e o número de túbulos de Malpighi e papilas retais não variaram entre as castas e idades. As operárias de M. floricola apresentaram uma alta tolerância para temperaturas frias, mas não para as quentes, quando...Monomorium floricola is a cosmopolitan urban, and a worldwide pest in homes and hospitals. Few studies were directed with this species. With the objective of adding useful information for pest control programs, the present study aimed at analyzing: the interaction of these ants with other species when foraging for food; morphology of immature and adult reproductive forms; possible causes for the appearance of anomalous reproductive forms; internal anatomy of the digestive system; the tolerance of workers to different temperatures; different traits affecting the fecundity of virgin queens. Workers proved more defensive when foraging in enemy or neutral territory, and more aggressive when at their own territory. Their reaction towards alien ants was dependent upon their species. Sugary substances were more attractive than fatty foods, and workers spent more time collecting more concentrated sugary liquids, and give preference to foods at higher amounts and nearer to the nest entrance. Larvae of M. floricola were different from other Monomorium species by their greater diversity of types of body hairs, and by their number of mouthpart sensilla. Reproductive adults were described in richness of details, as we needed parameters to detect the anomalous forms. The appearance of anomalous forms is apparently not caused by temperature variations or by the presence of symbiotic bacteria. The digestive system of adults of M. floricola and M. pharaonis were unique, e.g. by their having spines in the crop and fixed number of Malpighian tubules and rectal pads among specimens of different castes and ages. Workers of M. floricola were tolerant to cold temperatures, but not to high temperatures, in comparison with tested species M. pharaonis and T. bicarinatum. Larvae and workers proved to interfere in the fecundity of virgin queens. We hope the finds of the present study will be of use in improving pest... (Complete abstract click electronic access below)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
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