1,721,179 research outputs found
Pseudorandom Permutation
A number-theoretical approach to the permutation of a sequence of objects performed by means of a linear congruential generator of pseudorandom numbers is presented. A sufficient condition is found for obtaining permutations with the property that each object definitely abandons its initial position. Since cryptography is among the possible applications, the generator performing the inverse transformation is also given
Un terreno fertile
Il saggio introduce la parte del volume dedicata a ricostruire il quadro della ricerca in campo urbanistico sulla riqualificazione e rigenerazione degli spazi dei quartieri residenziali. Definisce quindi lo stato dell'arte, una periodizzazione degli atteggiamenti di progetto e della ricerca in merito e descrive le strategie da perseguire nella continuazione della ricerca, con particolare interesse per i suoi aspetti applicativi e sperimentali
Forensic pathology: Past, present and future
Forensic pathology is the scientific branch which, more than every other, today draws from new technologies inherent to other medical fields. In the last century history of forensic pathology has been characterized by a necessary conjunction between tradition and innovation, which primary achievement is finding the truth and scientific objectivity. During the past centuries several studies have enriched scientific forensic panorama, until the most recent introductions in radiological fields (3D post-mortal CT and MRI) and in the molecular biological one, with disclosure of miRNA. MiRNAs are small, endogenous, single stranded, non-coding RNA molecules identified in plants, animals and DNA virus transcriptome. Various and growing are the fields of application: to establish time of death, to evaluate vitality of skin lesions, in cases of head trauma, and cases of acute myocardial infarction. The introduction of new molecular biology techniques will certainly be useful in the coming years to find the “truth” in challenging judicial cases
Dedicated care pathways in Italian hospital emergency rooms for women who are victims of violence and abuse: Italian National Guidelines (DPCM 24.11.2017 - G.U. n. 24 issued 30.01.2018)
Gender-based violence affects one third of women globally with death the ultimate consequence after repeated violence. Government intervention is imperative. This article focuses on recent Italian legislation that provides a framework to assist victims of violence in Italian Emergency Rooms
Lo spazio, il tempo, la logica della composizione: uno schizzo per l’op. 102/2 di Ludwig van Beethoven
In his pivotal 1999 essay, Bernard Appel proposed a long-awaited definition of the textual status of musical sketches and drafts. Among the various characteristics, the spatiality of the annotations of a preliminary manuscript, i.e., the set of their topographical relationships, is identified as the main testimony to both the temporality of the creative process and the ideal logics that guided it. I examine the still unexplored importance of a ‘spatial’ approach to genetic materials, focusing on a case study: the unpublished annotation of the manuscript HCB Mh 92 for Ludwig van Beethoven’s Cello Sonata Op. 102 No. 2, that is one of his first score sketches, a frequent type of annotation in later Beethoven’s genetic materials. I will do so by illustrating the creative process on the manuscript and reconstructing, from spatial data, the writing process of its most troubled point. I will then delve into the compositional logic that motivated the adoption of certain technical solutions and conclude with some general reflections on the weight of the connection between topography, chronology and functionality, in other words, between space, time and logic of composition
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
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