358 research outputs found
A new characterization of complete Heyting and co-Heyting algebras
No full textWe give a new order-theoretic characterization of a complete Heyting and co-Heyting algebra C. This result provides an unexpected relationship with the field of Nash equilibria, being based on the so-called Veinott ordering relation on subcomplete sublattices of C, which is crucially used in Topkis’ theorem for studying the order-theoretic stucture of Nash equilibria of supermodular games
Les écueils du projet comme outils d'enquete sur l'histoire du notre futur et la compréhension de notre présent
No full textDiscutere non se il progetto ci fa capire e conoscere meglio il presente, ma come può farlo: questo ci sembra rilevante e ci interessa fare.
In quel “come” si nascondono alcune insidie: la complessità delle trasformazioni della città contemporanea, la pluralità di soggetti, saperi coinvolti, l’incertezza del tempo futuro, ma anche del passato e del presente. Con il testo seguente vorremmo provare a discutere ciò
Appunti di Programmazione ad Oggetti
No full textQueste note raccolgono gli appunti per il corso di Programmazione ad Oggetti (10 CFU) previsto al secondo anno del corso di laurea di primo livello in Informatica della Facolta` di Scienze Mm.Ff.Nn. dell'Universita` di Padova. Il corso si propone l'insegnamento della programmazione ad oggetti in tutti i suoi aspetti, sia teorici che pratici, tramite il linguaggio C++. Questo testo intende raccogliere il
materiale didattico che l'autore ha usato in forma prevalente di esempi ed esercizi durante il corso e non mira ad essere un testo di riferimento completo sulla programmazione ad oggetti in C++
Can U B A Can Writer? Child Abuse and Neglect: Identikit of the Model Author
No full textBackground: Child Abuse and Neglect (CAN) represents a relatively young theme in the world of research. However, more than 50 000 manuscripts dealing with it have been published since its birth, classically considered the Kempe’s paper, “The battered child syndrome”, published in 1962. Such an amount of papers has allowed the blooming of knowledge, and more and more people got involved in understanding the phenomenon.
In the last few years, a decrease is observed in the interest this issue is able to evoke in the scientific community (measurable in the progressively lower number of manuscripts published). Identification of model contributors and estimation of prevalence of group and corporate authorship could represent a good tool to understand how to enhance the number of publications, considered as the currency of academic research.
Objective: Aim of the present study is to draw an identikit of the model researcher involved in investigating the issue of child abuse and neglect.
Method: A retrospective bibliometric analysis was carried out, utilizing the search engine of NIH, PubMed. The last 10-year literature (1995-2004) was explored and the quoted phrase “Child Abuse” was searched in all available manuscripts. Starting from retrieved papers, information on authors was collected. Particular attention was paid to affiliation, country of origin, preferences shown on country of publication, tendency to publish in groups or corporate authorships. Starting from the Web of Science, 50 most prolific investigators were studied for the number of citation they showed. A descriptive analysis was performed.
Results: The bibliographic research retrieved 7369 articles, with a total “horde” of 19075 authors. The main characteristic of average investigator is utilizing English as language of transmission of his/her knowledge (92.4%) and write alone (38% of manuscripts have a single author; mean 2.6 authors per paper, range 0-26; SD of 2). Moreover, the model researcher seems to look for journals published in English speaking countries. In fact, top five countries of publication are the US, the UK, Germany, Australia and Canada (85.8% English speaking, 2.9% German speaking). The trend is to choose traditional journals (or traditional plus e-publishing journals), instead of stand-alone e-publications (99.9% vs 0.1%). Authors show another clear tendency, i.e. to publish in their own homeland, or in a country with whom there is an historical of geographical cooperation (for example Canada and the US, India and England or Japan and Australia). Looking to the most prolific authors, the 1st one have published, during the considered interval period, 41 manuscripts creating his own CV starting moving on the “chessboard” of author’s position during years: 1st author in 10 manuscripts with 60% after 2001, and 2nd author in 23 manuscripts with 50% published after 2001. Further result on most cited authors will follow.
Conclusion: CAN seems to be an hot topic for single-author: in fact the at-a-glance picture of the published manuscripts in the considered interval period strongly highlight the scarce frequency of corporate authorships, and much more than multidisciplinary teams. A number of reflections on most prolific authors and leading investigators working-in-the-field can be drawn. The study has pointed out that both being able to speak in English and coming form the US increase the probability to be able to publish a paper on CAN. Is it a choice of authors or a protectionist policy of publishers
Weak relative pseudo-complements of closure operators
No full textWe define the notion of weak relative pseudo-complement on meet semi-lattices, and we show that it is strictly weaker than relative pseudo-complementation, but stronger than pseudo-complementation. Our main result is that if a complete lattice L is meet-continuous, then every closure operator on L admits weak relative pseudo-complements with respect to continuous closure operators on L.
Citizen involvement in co-producing decentralised stormwater systems in Brussels
No full textiiTSEinfo:eu-repo/semantics/nonPublishe
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