Search results for "WORDS"
showing 10 items of 562 documents
Modular Method of Detection, Localization and Counting of Mutliple-Taxon Pollen Apertures Using Bag of Words
2014
International audience; Accurate recognition of airborne pollen taxa is crucial for understanding and treating allergic diseases, which affect an important proportion of the world population. Modern computer vision techniques enables the detection of discriminant characteristics. Apertures is one of these characteristic that has been little explored up to now. In this paper, a flexible method of detection, localization and counting of apertures of different pollen taxa with varying appearances is proposed. Apertures are described based by primitive images following the Bag-of-Words strat-egy. A confidence map is estimated based on the classification of sampled regions. The method is designe…
Synthèse de ligands macrocycliques comportant des fragments aromatiques et leur application pour la détection des cations métalliques
2011
The PhD thesis deals with the synthesis of polyazaligands using Pd-catalyzed amination of aryl halides. The manuscript consists of two parts. In the first part the scope of the Pd-catalyzed amination reaction for the synthesis of polyazamacrocyclic ligands is studied. The Pd-catalyzed amination of 2,7-dibromonaphthalene, 3,3’-dibromobiphenyl and 6,6’-dibromo-2,2’-bipyridyl with linear polyamines and oxadiamines is thoroughly investigated, and corresponding nitrogen- and oxygen-containing macrocycles is synthesized in yields up to 45%. The dependence of the formation of macrocycles and cyclic oligomers on the nature of the starting compounds is established. Two alternative approaches to cycl…
Characteristic Sturmian words are extremal for the Critical Factorization Theorem
2012
We prove that characteristic Sturmian words are extremal for the Critical Factorization Theorem (CFT) in the following sense. If p x ( n ) denotes the local period of an infinite word x at point n , we prove that x is a characteristic Sturmian word if and only if p x ( n ) is smaller than or equal to n + 1 for all n ≥ 1 and it is equal to n + 1 for infinitely many integers n . This result is extremal with respect to the \{CFT\} since a consequence of the \{CFT\} is that, for any infinite recurrent word x, either the function p x is bounded, and in such a case x is periodic, or p x ( n ) ≥ n + 1 for infinitely many integers n . As a byproduct of the techniques used in the paper we extend a r…
Gray codes and efficient exhaustive generation for several classes of restricted words
2015
We consider Gray codes and efficient exhaustive generating algorithms for the sets belonging to three major classes of restricted words, that are: (1) restricted growth sequences, (2) factor avoiding q-ary words, and (3) pattern avoiding permutations. For the first two classes, our Gray codes (and thus, our generating algorithms) are based on order relations obtained by specializing known order relations; namely Reflected Gray Code (RGC) order and its variations, and we call them Reflected Gray Code based orders. The Gray code and the generating algorithm for the third class are based on Steinhaus-Johnson-Trotter order, that is, order relation induced by Steinhaus-Johnson-Trotter Gray code …
The generalizability of Older Adult Self-Report (OASR) syndromes of psychopathology across 20 societies
2020
Contains fulltext : 217516.pdf (Publisher’s version ) (Closed access) Objectives: As the world population ages, psychiatrists will increasingly need instruments for measuring constructs of psychopathology that are generalizable to diverse elders. The study tested whether syndromes of co-occurring problems derived from self-ratings of psychopathology by US elders would fit self-ratings by elders in 19 other societies. Methods/design: The Older Adult Self-Report (OASR) was completed by 12 826 adults who were 60 to 102 years old in 19 societies from North and South America, Asia, and Eastern, Northern, Southern, and Western Europe, plus the United States. Individual and multigroup confirmatory…
"Per via di levare". Scavare e sottrarre in architettura
2014
Scavare, dal latino excavare (ex-cavare), possiede etimologicamente il significato di “rendere cavo” mediante l’azione del subtrahĕre (sottrarre). Tuttavia il significato del termine all’interno della sua necessaria disambiguazione non può essere inteso limitatamente alla luce dell’etimologia latina. Si dirà allora che la tecnica dello scavo è opposta e complementare alla tecnica dell’accumulazione. È un procedere per sottrazione di volumi, un operare in negativo per asportazione di materiale, erodendo, cavando ed estraendo. Il saggio indaga, attraverso un intenso per quanto lacunoso excursus tra le esperienze della contemporaneità l'emergere del archetipico della dimensione ipogea dell’arc…
Asociaciones de inmigrantes, Estados y desarrollo entre España y Colombia. ¿Un nuevo campo social transnacional?
2017
A pesar de la distancia geografica, las asociaciones de inmigrantes colombianos en Espana han tenido una creciente incidencia en los asuntos locales de su pais de origen, y sus acciones han ido adquiriendo una progresiva dimension transnacional. Entre otras practicas, las asociaciones han implementado numerosos proyectos de desarrollo en Colombia que han implicado la movilizacion de redes verticales y horizontales, tanto en el pais de origen como en el de destino, en paralelo con el renovado interes de los Estados colombiano y espanol por dar soporte a esas acciones. En este articulo nos preguntamos en que medida estas dinamicas, inducidas por la migracion, podrian haber contribuido a la co…
Adolescentes y drogas : su relación con la delincuencia
2016
Esta investigación describe la relación con las drogas en una muestra de 286 Adolescentes en Conflicto con la Ley de la ciudad de Valencia (España). Tiene por objeto analizar la relación entre trayectoria delictiva y consumo de drogas. Los resultados informan que, a mayor incidencia delictiva, mayor dependencia. En cuanto a patrones de consumo por tipo de sustancia, el cannabis se asocia a trayectorias delictivas iniciales, y la cocaína, a trayectorias consolidadas. El consumo se produce en escenarios habituales diurnos y se extiende a otros de ocio nocturno, y particularmente forma parte de la trayectoria consolidada en la vida cotidiana de los adolescentes en conflicto con la ley. This st…
Testimonial writing in Rodolfo Walsh and Francisco Urondo: political-aesthetical experiences in revolutionary times
2016
Este trabajo se ocupa de las trayectorias políticas e intelectuales de Rodolfo Walsh y Francisco Urondo desde una perspectiva que atiende a mostrar y analizar los singulares puntos de contacto entre sus recorridos en lo que respecta a una cuestión central en las polémicas culturales de los años sesenta y setenta en América Latina: las búsquedas tendientes a subvertir los modos de concebir las relaciones entre arte, política y sociedad.La investigación focaliza en los posicionamientos estético-políticos de Walsh y Urondo en un momento considerado como un clivaje dentro de la historia intectual argentina: los finales de la década del sesenta. Se abordan los entrecruzamientos de sus proyectos …
Derek Mahon's Literal Littorals
2012
International audience; A transversal reading of Derek Mahon's poems reveals his predilection for coastal landscapes: vistas of sea and seashore, harbour towns or seaside resorts. Suffused as they are with elemental symbolism (waves, wind, rain and storm, rocks, cliffs and misty piers), those liminal spaces take on a metaphysical dimension. The landscapes that the poet invests are the objective correlatives of his sense of alienation and vulnerability; they are mindscapes (paesagio mentale or reflections of the inner self) as much as territories to be paced and explored. This paper thus examines how the natural and the urban, the visual and the acoustic, the a-temporal and the modern or pos…