122 research outputs found
Construint la memòria dels feminismes: arxius, biblioteques i centres de documentació. Una mirada al passat, una reflexió per al futur
Objectius: oferir una panorà mica històrica i actual dels centres europeus i espanyols d'informació (biblioteques, arxius i centres de documentació) especialitzats en dones i gènere, que sorgeixen en paral·lel al moviment polÃtic de les dones. S'incideix en les seves missions i evolució, per reflexionar i conformar el que, després de més d'un segle d'existència, podem anomenar memòria dels feminismes. L'article vol també donar a conèixer una bibliografia en aquest à mbit, especialment a l'entorn d'alguns dels centres més actius, que creiem que pot mostrar un marc de referència en aquesta anà lisi. Metodologia: revisió bibliogrà fica de la literatura destacada en la temà tica, sense que l'anà lisi sigui exhaustiva de totes les associacions i centres de documentació europeus i espanyols. Per a la recerca bibliogrà fica s'ha pres com a referència la base de dades Mapping the World of Women's Information Services i el directori de la Red de Centros de Documentación y Bibliotecas de Mujeres. Resultats: s'observen un seguit de lÃnies i reflexions que permeten situar alguns dels reptes d'aquests centres en l'actualitat. Es constata la consolidació de centres de referència, com és el cas italià , que aprofiten els recursos i estructures públiques en l'à mbit de les biblioteques i arxius; l'evolució en el temps i adaptació dels centres amb un recorregut històric dins el paÃs d'origen; la importà ncia en la configuració de xarxes que integren fons i col·leccions sobre la temà tica, però que malauradament encara no tenen prou visibilitat; els fons personals com a documentació representativa d'aquesta memòria; els projectes de digitalització per conservar aquests materials; necessitat de delimitar polÃtiques de captació de fons, aixà com promoure la recerca. Finalment, s'esbossa un projecte futur que creiem significatiu i necessari per al context espanyol
Reproductive strategy of white anglerfish (Lophius piscatorius) in Mediterranean waters: implications for management
14 pages, 7 figures, 2 tablesReproductive parameters of the white anglerfish (Lophius piscatorius) in the northwestern Mediterranean Sea were studied in 556 specimens collected monthly aboard commercial fishing vessels that were trawling at depths of 12-836 m. The main spawning season occurred from February through June. The size at maturity was estimated to be 48.8 cm in total length (TL) for males, 59.9 cm TL for females, and 51.3 cm TL for both sexes combined. The white anglerfish has group-synchronous oocyte development and determinate fecundity. It is a total spawner (spawns all its eggs once during a spawning season) and has a batch fecundity ranging from 661,647 to 885,214 oocytes, a relative batch fecundity of 66-128 oocytes per gram of female gutted weight, and a potential fecundity with values from 54,717 to 104,506 oocytes per kilogram of female total weight. This study is the first to provide the reproductive biology of white anglerfish in the northwestern Mediterranean Sea and provide valuable information that can be used to improve the stock assessment and ensure proper management of this speciesPeer Reviewe
La subitización en tareas numéricas en niños con sÃndrome de down
Los niños con sÃndrome de Down manifiestan dificultades para realizar tareas de conteo (Abdelhameed y Porter, 2006) que les condiciona la adquisición de otras habilidades numéricas como la cardinalidad, la composición y la descomposición. En la investigación que realizamos con esta población se analiza una propuesta de enseñanza que fomenta la capacidad de subitizar con el fin de compensar sus dificultades en el conteo
Detection-aided liver lesion segmentation using deep learning
A fully automatic technique for segmenting the liver and localizing its
unhealthy tissues is a convenient tool in order to diagnose hepatic diseases
and assess the response to the according treatments. In this work we propose a
method to segment the liver and its lesions from Computed Tomography (CT) scans
using Convolutional Neural Networks (CNNs), that have proven good results in a
variety of computer vision tasks, including medical imaging. The network that
segments the lesions consists of a cascaded architecture, which first focuses
on the region of the liver in order to segment the lesions on it. Moreover, we
train a detector to localize the lesions, and mask the results of the
segmentation network with the positive detections. The segmentation
architecture is based on DRIU, a Fully Convolutional Network (FCN) with side
outputs that work on feature maps of different resolutions, to finally benefit
from the multi-scale information learned by different stages of the network.
The main contribution of this work is the use of a detector to localize the
lesions, which we show to be beneficial to remove false positives triggered by
the segmentation network. Source code and models are available at
https://imatge-upc.github.io/liverseg-2017-nipsws/ .Comment: NIPS 2017 Workshop on Machine Learning for Health (ML4H
The Roses giant quartz vein (Cap de Creus, Eastern Pyrenees): Geology and fluid inclusion data.
The Pyrenean Axial Zone is characterized by thick series of metasedimentary and orthogneissic materials derived from pre-Variscan rocks. These sequences were intruded by large bodies of Variscan granitoids, some exposed after the Alpine orogeny. In the Eastern Pyrenees, a number of quartz veins of kilometric length and metric to decametric width, are present. Although these veins are mostly hosted by Variscan and pre-Variscan rocks, in the utheastern limit of the Roc de Frausa Massif, large fault related quartz bodies rossc utting Mesozoic sedimentary rocks, have also been recognized Liesa, 1988). The Roses giant quartz vein constitutes a remarkable example of the seregional scale quartz veins. It is located at the south ernportion of the Cap de Creus Massif, extending for 2700 mand reaching widths up to 25m. Apparently, the vein continues towards the NW depicting a much longer structure
Estructura del sistema frontal de cabalgamientos en el Pirineo Oriental: control estratigráfico en la geometrÃa y secuencia de emplazamiento de los cabalgamientos
El manto del CadÃ, la unidad estructural más extensa del Pirineo Oriental meridional, involucra cerca de 5 km de sucesión paleógena depositada en una cuenca de antepaÃs. Esta secuencia constituye un sistema petrolÃfero que ha sido explorado desde el año 1960 y suprayace discordantemente un basamento Paleozoico involucrado en el apilamiento antiforme que caracteriza el centro de la cordillera. En el antepaÃs, la sucesión paleógena presenta un espesor menor y está constituida por un conjunto de facies diferente, en general más somera. La interpretación de datos sÃsmicos reprocesados recientemente y su integración con datos de superficie y de sondeos son la base de un nuevo modelo estructural del área. La presencia de un espesor anómalo de una serie de rocas evaporÃticas por debajo del sinclinal de Ripoll (2000m perforados en el sondeo El Serrat-1) ha sido interpretada como asociada a un cambio lateral de facies entre una formación turbidÃtica (Campdevà nol) septentrional, la formación evaporÃtica de Beuda y una formación carbonática meridional (Perafita) y a su apilamiento en un dúplex
Variscan and Alpine structure of the hills of Barcelona: geology in an urban area
Line 9 of the underground railway is currently being constructed in Barcelona. This undertaking necessitates tunnelling through a number of hills that are mainly made up of Paleozoic rocks, which exhibit a complex structure due to the superposition of Variscan, Mesozoic, Paleogene, and Neogene structures. We present a geological map of the hills of Barcelona originally compiled at 1:5000 scale. Unpublished field notes from surveys carried out in the 1940s and in the early 1970s were crucial for drawing up this detailed map, which together with subsurface data from public works and our study of the few remaining outcrops, enabled us to provide fresh insights into the structure of this area. We also discuss the age of the structures on the basis of cross-cutting relationships and regional considerations. Our conclusions highlight the ongoing need for a geological survey of cities given that our understanding of their geology depends on impermanent outcrops and on the recovery of lost subsurface data. These considerations call for a suitable management of the geological information in urban areas with a complex geology for planning and developing safe infrastructures
Reproductive biology of Black Anglerfish (Lophius budegassa) in the northwestern Mediterranean Sea
Gonadal morphology and reproductive biology of the Black Anglerfish (Lophius budegassa) were studied by examining 4410 specimens collected between June 2007 and December 2010 in the northwestern Mediterranean Sea. Ovaries and testes presented traits common among fishes of the order Lophiiformes. Spawning occurred between November and March. Size at first maturity (L50) was 33.4 cm in total length (TL) for males and 48.2 cm TL for females. Black Anglerfish is a total spawner with group-synchronous oocyte development and determinate fecundity. Fecundity values ranged from 87,569 to 398,986 oocytes, and mean potential fecundity was estimated at 78,929 (standard error of the mean [SE] 13,648) oocytes per kilogram of mature female. This study provides the first description of the presence of 2–3 eggs sharing the same chamber and a semicystic type of spermatogenesis for Black Anglerfish. This new information allows for a better understanding of Black Anglerfish reproduction—knowledge that will be useful for the assessment and management of this species
- …