1,721,160 research outputs found
Myrmarachne mariaelenae Edwards & Benjamin 2009
No full textMyrmarachne mariaelenae Edwards & Benjamin, 2009 (Figs 26 A–G, 27 A–G) Damoetas galianoae Prószyński, 2001: 520, Figs 5–10. Myrmarachne mariaelenae Edwards & Benjamin, 2009: 14 (replacement name for Damoetas galianoae). Non-type material examined. BORNEO: 2 males and 3 females, Gunung Alab, Crocker Range Park, Sabah, 9 X 2010, T. Yamasaki leg.; 5 males and 24 females, Kinabalu Park Headquarter area, Sabah, 10–12 XI 2010, T. Yam asaki leg Diagnosis. Very small, pale yellow species; abdomen with two transverse black bands dorsally (Figs 26 A, 27 A). In males chelicera shorter than carapace; femur I basally broad. In females, copulatory atria indistinct; sclerotised copulatory ducts twist once; median pocket present. Measurements (male/female). Carapace length 1.60–1.98 / 1.60–1.70, width 1.16–1.28 / 1.04–1.16. Abdomen length 1.70–1.83 / 1.48 –2.00. Chelicera length 0.95–1.25. Sternum length 0.85 –1.00/ 0.78–0.83. Width of eye row I 1.14–1.26 / 1.08–1.18; II 0.98–1.06 / 0.92–1.04; III 1.22–1.32 / 1.14–1.28. ALE–PLE 0.82–0.92 / 0.76–0.84; ALE– PME 0.38–0.44 / 0.36–0.40. Eye size: AME 0.38–0.43 / 0.35–0.40, ALE 0.19–0.23 / 0.18–0.20, PME 0.05–0.06 / 0.05–0.06, PLE 0.23–0.26 / 0.21–0.23. Male (Figs 26 A–G). Carapace without distinct constriction; cephalic part weakly convex; thoracic part sloping downward posteriorly. Chelicera shorter than carapace, with three to five prolateral and no retrolateral teeth. Sternum broad and oval. Leg I robust; femur I basally broad. Abdomen oval with translucent dorsal scutum. Palp (Figs 26 E–G). Tegulum large oval with thin v-curved seminal reservoir in prolateral part and blurred thick seminal reservoir along edge of tegulum. Embolus forming two large oval coils; embolus coils occupying more than half of venter of cymbium. RTA moderately curved. Flange of RTA not well developed. Leg spination. Femur I pd 1; patella I rv 0–1; tibia I pv 6–7, rv 5–6; metatarsus I pv 2, rv 2; tibia II rv 2–3; metatarsus II pv 2, rv 2; femur III pd 1, rd 1; femur IV pd 1, rd 1. Coloration and pilosity. Cephalic part pale brown, sparsely covered with black and white hairs; thoracic part pale yellow, almost without hairs; posterior margin of thoracic part tinged with grey. Chelicera brown. Maxilla and labium brown. Sternum cream. Coxae cream. Abdomen grey, with two transverse black bands dorsally. Female (Figs 27 A–G). Carapace similar to that of males. Chelicera with three or four prolateral and five retrolateral teeth. Sternum similar to that of males. Abdomen oval, without dorsal scutum. Epigyne (Figs 27 D–G). Copulatory openings indistinct. Spermathecae elongate-oval. Sclerotised copulatory ducts twisted once; posterior part of sclerotised copulatory ducts narrower than anterior part. Median pocket present in front of epigastric furrow. Leg spination. Patella I rv 1; tibia I pv 6, rv 5–6; metatarsus I pv 2, rv 2; tibia II rv 1–2; metatarsus II pv 2, rv 2. Coloration and pilosity similar to those of males. Distribution. Borneo (Prószyński, 2001) Remarks. Although we did not examine the type material of Damoetas galianoae, our specimens agreed with the original description by Prószyński (2001). Myrmarachne mariaelenae is similar to M. brevichelicera in the structures of the male palp and epigyne, but they are distinguishable from each other by coloration of the abdomen. Biology. The species is so far collected from 1500–1900 m above the sea level. The retreats are constructed on the underside of leaves with a mixture of threads and dead plant fragments.Published as part of Yamasaki, Takeshi & Ahmad, Abdul Hamid, 2013, Taxonomic study of the genus Myrmarachne of Borneo (Araneae: Salticidae), pp. 501-556 in Zootaxa 3710 (6) on pages 534-535, DOI: 10.11646/zootaxa.3710.6.1, http://zenodo.org/record/24877
Open Archaeology: Definitions, Challenges and Context
Full text link© 2015 Andrew T. Wilson and Ben Edwards. Open Source Archaeology: Ethics and Practice' brings together authors and researchers in the field of open-source archaeology, defined as encompassing the ethical imperative for open public access to the results of publicly-funded research; practical solutions to open-data projects; open-source software applications in archaeology; public information sharing projects in archaeology; open-GIS; and the open-context system of data management and sharing. This edited volume is designed to discuss important issues around open access to data and software in academic and commercial archaeology, as well as to summarise both the current state of theoretical engagement, and technological development in the field of open-archaeology
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
Parametric spectral inversion of seismic source, path and site parameters: application to northeast Italy
Full text linkSUMMARY
Strong ground motion prediction is a fundamental topic in the field of engineering seismology, as it provides the input for seismic hazard studies as well as for vulnerability and risk assessment. The spectral modelling approach can provide a realistic representation of ground motion behaviour, possibly including its frequency variability, as the full ground motion spectrum is modelled analytically. In its parametric form, this approach requires a careful calibration of the model, starting from empirical observations and fitting the source, path and the site-specific response assuming a predefined physically constrained functional form. This study explores the use of spectral modelling for a study area in northeast Italy, at the border with Slovenia and Austria. It is based on the parametrization of seismic source and attenuation effects, and it also allows to estimate site effects, as a by-product. The main innovation with respect to standard spectral modelling is the inclusion of dedicated uncertainty estimators in the functional form. Parametric inversion of source and path attenuation is performed on a data set corresponding to 23 events recorded by 24 stations located within the target area. The modular inversion setup allows to properly include a priori constraints in the mathematical solution to reduce trade-off between variables. Spectral amplification at each site is defined with respect to the network average rock condition, and its frequency-dependent component is estimated from residual analysis after the inversion. Inverted source parameters are comparable with reference values for the region available from literature (with seismic moments between and N·m, and related stress drop values in the range ); the same is also true for average attenuation properties (e.g. apparent frequency-independent attenuation quality factor of ). For a selection of stations with available characterization based on different methods, a preliminary comparison of site-specific response functions shows that both the frequency value and amplitude of the main amplification peaks are well recovered. These encouraging results open to the possibility of subsequently using the calibrated model for forward modelling purposes.</jats:p
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
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