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Your search keyword '"Chiari, S."' showing total 5 results
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5 results on '"Chiari, S."'

3. Computer-aided photographic identification ofRosalia alpina(Coleoptera: Cerambycidae) applied to a mark-recapture study

Author

Gloria Antonini, Emanuela Solano, Sarah Rossi de Gasperis, Emiliano Mancini, Giuseppe M. Carpaneto, Giulio Nigro, Alessandro Cini, Fabio Mosconi, Pio Federico Roversi, Franco Mason, Giuseppino Sabbatini Peverieri, Lara Redolfi De Zan, Alessandro Campanaro, Stefano Chiari, Rossi de Gasperis, S, Carpaneto, Giuseppe, Nigro, G, Antonini, G, Chiari, S, Cini, A, Mancini, Emiliano, Mason, F, Mosconi, L, Redolfi de Zan, L, Roversi, Pf, Sabbatini Peverieri, G, Solano, E, and Campanaro, A.

Subjects
0106 biological sciences, Ecology, Computer science, business.industry, Image processing, Elytral spots, I3SC software, natural marking, protected species, saproxylic insects, Ecology, Evolution, Behavior and Systematics, Insect Science, Tracing, 010603 evolutionary biology, 01 natural sciences, Mark and recapture, Elytral spots, I3SC software, natural marking, protected species, saproxylic insects, 010602 entomology, Identification (information), Software, Citizen science, Computer-aided, business, Longhorn beetle
Abstract

Assessing the conservation status of protected species needs quantitative population data, generally obtained using Capture-Mark-Recapture methods (CMR). The exploitation of natural marking (e.g. individual morphological traits) offers an interesting alternative, based on image analyses, which may result in a less manipulation of protected species compared to the typical artificial marking method. In our 2-year CMR study, we tested for the first time in the natural setting the feasibility and the application of the computer-aided photographic identification method of Rosalia alpina using the individual elytral spots as the natural marking. The I3SC software was used for the photographic analysis. Data were collected from populations of two National Parks of central Italy during July–August in 2014 and 2015. We developed a standard procedure in order to optimise the image acquisition in the field and to acquire clear and comparable images, facilitating the I3SC screening process. The results demonstrated that the computer-aided photographic identification of natural markings can be implemented in a CMR population study of R. alpina. Our image processing approach showed that using only the elytral central spot contours made the tracing contour process less time-consuming obtaining reliable results. Furthermore, I3SC output scores were used to identify a threshold value for the identification of new individuals or recaptures, facilitating the final identification proposed by operators. Finally, we assessed the possibility of performing the methodology using a Citizen Science approach.

Published
2016

4. Frequency and clinical significance of human β-herpesviruses in cervical samples from Italian women

Author

Biagio Eugenio Leone, C. Mangioni, A. Villa, Rita Garcia-Parra, Giuseppe Locatelli, Giulia Cassina, Clementina Cocuzza, Stefania Chiari, A. Brenna, Francesco Broccolo, Broccolo, F, Cassina, G, Chiari, S, Garcia Parra, R, Villa, A, Leone, B, Brenna, A, Locatelli, G, Mangioni, C, and Cocuzza, C

Subjects
Cytomegalovirus Infection, MED/40 - GINECOLOGIA E OSTETRICIA, viruses, Cytomegalovirus, Uterine Cervical Neoplasms, Cercopithecus aethiop, Herpesvirus 7, Human, Cervix Uteri, medicine.disease_cause, Polymerase Chain Reaction, Virus, Herpesviridae, law.invention, law, Virology, Chlorocebus aethiops, medicine, Animals, Humans, Clinical significance, Vero Cells, Polymerase chain reaction, Cross-Sectional Studie, Cervical cancer, Herpesviridae Infection, biology, Animal, Cytomegaloviru, virus diseases, Herpesviridae Infections, Cell Transformation, Viral, biology.organism_classification, medicine.disease, MED/08 - ANATOMIA PATOLOGICA, Cell Transformation, Neoplastic, Cross-Sectional Studies, Infectious Diseases, MED/07 - MICROBIOLOGIA E MICROBIOLOGIA CLINICA, Cytomegalovirus Infections, DNA, Viral, Immunology, Vero Cell, Female, Human herpesvirus 6, Viral load, Human
Abstract

Human papillomaviruses (HPVs) are necessary, but not sufficient, for the development of cervical cancer (CC). Human β-herpesviruses (β-HHVs) have been suggested as possible cofactors in the oncogenesis of CC. In this cross-sectional study, the prevalence and possible association of cytomegalovirus (CMV), HHV-6 and -7 with HPV presence was investigated by quantitative real-time PCR assays in cervical samples obtained from 208 italian women. The two most common high-risk HPV types found were 31 and 16. Overall, the positive rates for CMV, HHV-6 and HHV-7 were 66%, 25%, and 6%, respectively. In particular, the prevalence of CMV was found to be extremely high irrespective of either the cytological category or HPV positivity. The prevalence of HHV-6 DNA was significantly higher in high-grade squamous intraepithelial lesions (HSIL) respect to normal women (P

Published
2007

5. Exaggerated allometric structures in relation to demographic and ecological parameters in Lucanus cervus (Coleoptera: Lucanidae).

Author

Romiti F, Tini M, Redolfi De Zan L, Chiari S, Zauli A, and Carpaneto GM

Subjects
Animals, Male, Organ Size, Coleoptera anatomy & histology, Ecosystem, Mandible anatomy & histology
Abstract

Enlarged weapons and ornamental traits under sexual selection often show a positive allometric relationship with the overall body size. The present study explores the allometry of mandibles and their supporting structure, the head, in males of the European stag beetle, Lucanus cervus. This species shows a remarkable dimorphism in mandible shape and size that are used by males in intraspecific combats. Stag beetles were captured, measured, weighed, and released in the framework of a capture-mark-recapture study. The relationship of mandible length (ML) and head width in respect to the overall body size was described by a segmented regression model. A linear relationship was detected between ML and head width. The scaling relationships for both ML and head width identified the same switchpoint, highlighting the advantages of using combined results of weapons and their supporting structures in such analysis. These results led to a more consistent distinction of males in two morphologies: minor and major. The survival probability of individuals was dependent on the morphological class and was higher for minor males than for major. Elytron length and body mass of the individuals did not show any significant variation during the season. Differences in predatory pressure were detected between morphs by the collection and analysis of body fragments due to the predatory activity of corvids. Morphological differences and shift in demographic and ecological parameters between the two classes suggested that selection continues to favor intrasexual dimorphism in this species throughout a trade-off mechanism between costs and benefits of carrying exaggerated traits., (© 2015 Wiley Periodicals, Inc.)

Published
2015
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