1,721,624 research outputs found
Gestione tramite GPS delle attività di campagna in aziende zootecniche (Progetto Agriservices)
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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
ELECTRONIC TRACEABILITY SYSTEMS IN ANIMAL HUSBANDRY: FROM FIELD SURVEY TO COMPUTERIZED MANAGEMENT
Full text linkThe work carried out within the PhD was divided on the development of three different automation systems in the livestock industry for cattle, sheep and goat:
Study and development of an integrated automatic traceability system for the bovine meat chain
In Italy, the bovine meat production chain is extremely complex both under structural and organizational profile. This is due to: high number of operators involved; large fragmentation in agricultural and industrial phases; existence of remarkable import flow of animals and meat; commercial channels complexity. Traceability can be easily reached in each single separate step of the food chain (breeding, slaughtering, packaging and selling). Problems arise in integrating each productive process subsystem. Aim of the project was to study and develop an integrated automatic traceability system for the bovine meat chain based on RFID technologies.
RFID tags were used to identify: animals; hooks used in the slaughtering for the carcass transport and storing; anatomical cuts.
RFID readers were installed at: farm livestock gates; slaughtering entrance; each working station in the dissection area; stock rooms.
All the system was controlled by using a software divided into three main sections for the: livestock; slaughtering; stock room/shop.
The system entailed the following phases:
- Animal ear tag reading at farm level to identify and to record each productive step in the “Titvlvs” software;
- Animal Ear tag reading through fixed antenna in slaughter house standstill corridor to send information to management software;
- Animal Ear tag and hooks microchips combining in the evisceration area;
- Carcass number attributing and label writing in weighting area;
- Recording of carcass entry in dissection area, by using a photocell-spar system which identifies hooks;
- Rewritable microchip adding in each vacuum-packed anatomical cut.
- Every selling action recording, in the store/shop area, by using weighting systems connected to a web software able to perform a return control on the sold meat.
The system was used in a cooperative productive organization of Northern Italy. Tests showed the functionality of the different components and the whole integration of the subsystems.
Study and development of an integrated system for slurry management monitoring and electronic reports drawing up in cattle breeding
Over some years a new concept, identified as “precision farming”, was introduced to improve field and farm management from agronomical, technical, environmental and economical perspectives through the use of new technologies, such as global positioning systems (GPS), sensors, satellite images and geographical information systems (GIS). Environmental and food safety regulations are becoming more and more hard-and-fast asking farmers to increase their organizational and technical skills for a well-integrated agro-territorial management. Aim of the research activity was the implementation of an integrated system for animal slurry management monitoring and electronic reports drawing up in cattle breeding in order to optimize the fertilization management and reduce the agricultural impacts.
The developed system was based on the integration of the following mechanical, electronic and computational components:
- Slurry production control subsystem, based on ultrasound sensors applied to slurry pits and pressure sensors applied to a slurry spreader;
- Slurry spreading subsystem, constituted by an electronic card specifically developed and by a GPS/GSM device applied to tractors, able to automatically recognize the linkage with a slurry spreader and to notice its position on field;
- Recording and spreading data visualization subsystem, based on a GIS able to elaborate slurry distribution maps with relative distributed quota and spreading periods;
- Palm PC with a specific software (FarmWorks®) for field operations recording and data transfer to farm PC;
- Management software (FarmWorks®) for field data filling and electronic reports drawing-up.
The developed system, tested in a Northern Italy farm during 2008, has shown full functionality enabling to monitor animal slurry management (storage, collecting, spreading) and to optimize agricultural operations and fertilization management under an economical and environmental point of view.
Study and development of a prototype collar sensitized with GPS technology to monitor the herds of livestock, the exploitation of grazing areas and for the avoidance of cattle stealing
Cattle stealing, for Italian legislation, is an aggravated form of theft, which occurs with the removal of three or more head of cattle or sheep in order to profit from it (Article 625 n .8 - Penal Code).
Since 2000, however, theft of livestock is a huge comeback affecting the entire country. In fact, in 2008 one hundred thousand head of cattle were stolen and intended to illegal slaughterhouses. It is, therefore, an offense that goes beyond the direct interests of agriculture affecting the whole community and, more specifically, product quality and public health.
The approaches taken so far to try to counter the cattle theft phenomenon were limited to the territorial surveillance, on the other is not always feasible, especially in grazing areas often characterized by difficulties of access and remoteness from the farm
Soluzioni informatiche per la gestione semplificata degli allevamenti ovicaprini (Progetto S-Idea)
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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
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