1,721,165 research outputs found
Filippo Capponi. Entomología pliniana (N. H. XI, 1-120). Universitá di Genova. Facoltá di lettere. 1994. 231 pp.
Full text linkFil: Ramallo de Perotti, M..
Universidad Nacional de Cuyo. Facultad de Filosofía y Letra
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Using human head lice to unravel neglect and cause of death
Full text linkDespite the common association of human lice with abandoned or neglected people, no procedure to assess pediculosis, aimed to detect signs of neglect, exists. Investigating the two most common forms of head louse infestation, regular and severe, we define lice-markers of neglect and develop a protocol and survey form to record and assess pediculosis. The study of head lice from a deceased victim of neglect helped unravel time-length since death, frequency of exposure to neglect and the cause and circumstances related to the death.
Nit-clusters are markers of neglect, indicating length and frequency of neglect episodes.
In the case study used here that culminated in the death of the victim, sustained abandonment started circa 2 years before discovery. The lice suggested that death was caused by overconsumption of a powerful calcium channel blocker (CCB), an antihypertensive, an excess of which in lice food supply (blood) stops oogenesis. Despite hosting thousands of adult females on the hair, lice reproduction stopped and nits were no longer developed or deposited on the hairs at the root end. This short distance of the shaft with no nits provided a time estimation of overdosing of almost 2 months before death
Figure 4 in First record of Poecilochirus mrciaki Mašán, 1999 (Acari, Parasitidae) and its phoretic carriers in the Iberian peninsula
No full textFigure 4 Percentage of Poecilochirus mrciaki mites per stage of decomposition (F, fresh; Bl, Bloated; Ac, Active decay; Ad, Advance decay; D, Dry)Published as part of Saloña Bordas, Marta I. & Perotti, M. Alejandra, 2019, First record of Poecilochirus mrciaki Mašán, 1999 (Acari, Parasitidae) and its phoretic carriers in the Iberian peninsula, pp. 242-252 in Acarologia 1999 (2) on page 246, DOI: 10.24349/acarologia/20194328, http://zenodo.org/record/517359
Figure 3 in First record of Poecilochirus mrciaki Mašán, 1999 (Acari, Parasitidae) and its phoretic carriers in the Iberian peninsula
No full textFigure 3 Corresponding analysis of the association between insect carriers transporting Poecilochirus mrciaki and stages of decomposition. P. mrciaki shows a clear association with Coleoptera visiting carcasses. Axis 1 44%, Axis 2 38%. (AST: Anoplotrupes stercorosus, CAL: Calliphoridae, CMA: Creophilus maxilosus, NLI: Necrodes littoralis, NVE: Nicrophorus vespilloides, TPY: Trypocopris pyrenaeus, DIP: unidentified Diptera).Published as part of Saloña Bordas, Marta I. & Perotti, M. Alejandra, 2019, First record of Poecilochirus mrciaki Mašán, 1999 (Acari, Parasitidae) and its phoretic carriers in the Iberian peninsula, pp. 242-252 in Acarologia 1999 (2) on page 245, DOI: 10.24349/acarologia/20194328, http://zenodo.org/record/517359
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
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Co-haplotyping symbiont and host to unravel invasion pathways of the exotic pest Halyomorpha halys in Italy
Full text linkThe brown marmorated stink bug Halyomorpha halys (Stål) is a globally invasive species that harbors a primary bacterial symbiont ‘Candidatus Pantoea carbekii’. In this work, P. carbekii was used here as another genetic marker to investigate the biodiversity and biogeographical patterns of this important pest, in native and newly invaded areas, especially in Italy. The correlation between the genetic structure of the symbiont and that of its host was studied through the analyses of one bacterial and one host marker, the putative pseudogene ΔybgF and the mitochondrial gene COI, respectively. As a result, five new P. carbekii haplotypes were identified, and an association pattern between host-symbiont haplotypes was observed. Host species showed higher haplotype diversity than symbiont, which can be expected in a long term host-symbiont association. Populations from the north-eastern Italy showed the highest values of genetic diversity for both markers, highlighting that this particular Italian area could be the result of multiple ongoing introductions. Moreover, some of the symbiont-host haplotypes observed were shared only by populations from north-eastern Italy and native areas, especially Japan, suggesting further introductions from this native country to Italy. Overall, our findings improve the understanding of the potential origin of multiple accidental introductions of H. halys in Italy
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