1,721,021 research outputs found
A preliminary catalogue of the Coleoptera (Hexapoda: Insecta) of the Monte Netto Regional Park (Lombardy NE Italy)
No full textMola, Livio, Ruzzier, Enrico, Deiaco, Claudio, Agosti, Mauro, Faccoli, Massimo, Matějíček, Jan, Farina, Laura, Diotti, Luciano, Rocca, Francesca Della (2023): A preliminary catalogue of the Coleoptera (Hexapoda: Insecta) of the Monte Netto Regional Park (Lombardy NE Italy). Zootaxa 5293 (1): 1-44, DOI: 10.11646/zootaxa.5293.1.1, URL: http://dx.doi.org/10.11646/zootaxa.5293.1.
Leer como experiencia colectiva: debatir, analizar e intercambiar en un club de lectura
Full text linkFil: Farina, Laura. Universidad Nacioanl de La Plata.Fil: Ledesma, Agustina. Universidad Nacional de La Plata. Liceo "Víctor Mercante" y Nacional "Rafael Hernández".Fil: Salem, Ada. Universidad Nacioanl de La Pata
Characterization of the physical and structural changes undergone by a biological tissue during microwave thermal ablation procedures
Full text linkThe aim of the present doctoral project was to investigate the physical and structural changes occurring in biological tissue treated with microwave thermal ablation procedures, focusing the study on the evaluation and characterization of the shrinkage of the tissue, in correlation with the influence of the thermal changes.
When the project started in 2013, few studies were conducted to comprehend the shrinking phenomenon (Diaz et al., 2008, Brace et al., 2009, Ganguli et al., 2008, Planché et al., 2013, Brace et al., 2010]. Nevertheless, the subject was of high interest for physicians and scientists involved in this field. The results reported from preliminary studies underlined that the volume occupied by the ablated tissue as measured at the end of the thermal ablation procedure is smaller than the volume occupied by the equivalent untreated tissue. Therefore, it resulted important to be able to adequately characterize the shrinkage of the tissue during a microwave thermal ablation procedure in order to correctly predict the true treatment volume; otherwise, the treatment safety as well as the efficacy can be compromised exposing peripheral structures to unwanted heating and affecting the assessment of the treatment’s technical success.
The analysis and study of the thermally ablated tissue led mainly to perform extensive experimental investigations. Accordingly, ex vivo studies were conducted at four different laboratories: the Laboratory of the Division of Health Protection Technologies, ENEA Casaccia Research Centre, Rome (Italy); the Radiology Dept. of Regina Elena National Cancer Institute, Rome (Italy); the R&D laboratory of HS Hospital Service SpA, Aprilia (Italy); the Applied Radiology Laboratory of Hadassah Hebrew University Medical Center, Jerusalem (Israel), where I stayed for 6 months as visiting scholar.
Moreover, thanks to the COST support, the laboratory of the Institute of Microbiology of the Academy of Sciences, Prague (Czech Republic), hosted me during a Short Term Scientific Mission (STSM) to conduct in vivo experiments of dielectric spectroscopy in the framework of a newborn joint scientific collaboration.
In the present thesis, the conducted work is illustrated following the speculative project development. Specifically, the first chapter introduces the microwave ablation therapy, its operating principles, clinical and experimental applications and gaps; the second chapter concerns the used devices and the setups developed to conduct the experimental trials; and the third chapter illustrates the conducted experiments and their results. Finally, the outcomes are discussed in the conclusive chapter
Design of microelectromagnets for magnetic particles manipulation
No full textThe design of a ring trap for the confinement of magnetic microparticles based on thin-film technology is proposed. The study is conducted with a commercial electromagnetic software, using design specifications obtained from a preliminary analytical and technological study. A two-ring trap system is optimized to obtain the required magnetic flux density able to trap the magnetic microparticles while satisfying the heating constraints. In particular, the temperature in the area where the particles are collected is kept below 37 degrees C, in order to prevent thermal effects on the particles, allowing their manipulation without bud formation, fragmentation, and hemolysis. The resulting configuration represents a viable solution for the fabrication of microanalytical devices featuring on-chip ring traps without the need of external active cooling systems
FIGURE 2. a in A preliminary catalogue of the Coleoptera (Hexapoda: Insecta) of the Monte Netto Regional Park (Lombardy NE Italy)
No full textFIGURE 2. a) Percentage distribution of species on the Italian Red List; b) Percentage distribution of trophic categories.Published as part of Mola, Livio, Ruzzier, Enrico, Deiaco, Claudio, Agosti, Mauro, Faccoli, Massimo, Matějíček, Jan, Farina, Laura, Diotti, Luciano & Rocca, Francesca Della, 2023, A preliminary catalogue of the Coleoptera (Hexapoda: Insecta) of the Monte Netto Regional Park (Lombardy NE Italy), pp. 1-44 in Zootaxa 5293 (1) on page 19, DOI: 10.11646/zootaxa.5293.1.1, http://zenodo.org/record/795944
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
Treatment planning in microwave thermal ablation: clinical gaps and recent research advances
No full textMicrowave Thermal Ablation (MTA) is a minimally invasive therapeutic technique aimed at destroying pathologic tissues through a very high temperature increase induced by the absorption of an electromagnetic field at microwave (MW) frequencies. Open problems, which are delaying MTA applications in clinical practice, are mainly linked to the extremely high temperatures, up to 120 °C, reached by the tissue close to the antenna applicator, as well as to the ability of foreseeing and controlling the shape and dimension of the thermally ablated area. Recent research was devoted to the characterization of dielectric, thermal, and physical properties of the tissue looking at their changes with the increasing temperature, looking for possible developments of reliable, automatic, and personalized treatment planning.
In this paper, a review of the recently obtained results as well as new un-published data will be presented and discussed
Dielectric and Thermal Properties of Tissues Undergoing Microwave Thermal Ablation Procedures
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