Prototyping Information Visualization in 3D City Models: a Model-based Approach

When creating 3D city models, selecting relevant visualization techniques is a particularly difficult user interface design task. A first obstacle is that current geodata-oriented tools, e.g. ArcGIS, have limited 3D capabilities and limited sets of visualization techniques. Another important obstacle is the lack of unified description of information visualization techniques for 3D city models. If many techniques have been devised for different types of data or information (wind flows, air quality fields, historic or legal texts, etc.) they are generally described in articles, and not really formalized. In this paper we address the problem of visualizing information in (rich) 3D city models by presenting a model-based approach for the rapid prototyping of visualization techniques. We propose to represent visualization techniques as the composition of graph transformations. We show that these transformations can be specified with SPARQL construction operations over RDF graphs. These specifications can then be used in a prototype generator to produce 3D scenes that contain the 3D city model augmented with data represented using the desired technique.Comment: Proc. of 3DGeoInfo 2014 Conference, Dubai, November 201

Towards a feminist and dialectic analysis of neoliberal globalization : the weight of the militaro-industrial system on the «global women»

Una verdadera perspectiva de género implica analizar las situaciones de mujeres y hombres dialécticamente, a la vez que se atiende a las relaciones sociales de «raza» y clase, las cuales se construyen y operan conjuntamente con las de sexo. En este sentido, se analiza aquí cómo la globalización neoliberal crea un mercado laboral internacionalizado e informalizado, y sus consecuencias sobre las posibilidades de empleo para las mujeres y los hombres no privilegiad@s del planeta. Se trata, pues, de poner en evidencia los vínculos entre el desarrollo de las «mujeres de servicio» (trabajo de reproducción social en el sentido amplio: trabajo doméstico para familias o empresas, trabajo sexual, procreativo y de cuidado); y el desarrollo de los «hombres en armas» (soldados, policías, vigilantes, mercenarios, miembros de grupos delincuentes, ingenieros de la industria armamentista o de la vigilancia global) que nace del complejo militaro-industrial y de la guerra neoliberal por los recursos.A genuine gender perspective means analyzing in a dialectic way, women’s and men’s situation, while accounting for race and class social relations that are interlocking with sex relations. In this perspective, this article analyzes how noeliberal globalization creates an internationalized and informalized labor market, and its consequences on the jobs opportunities for non-priviledged women and men wolrdwide. It highlights the converse logics between the growth of «global women» in the service sector (social reproduction in a broad sense: domestic and cleaning work, sex work, procreative work and care) and the developpment of «armed men» (soldiers, cops, guards, mercenaries, criminals, militar or global surveillance ingeneers) stemming from the militaro-industrial complex and the neoliberal war for ressources

A new role for Holliday junction resolvase Yen1 in processing DNA replication intermediates exposes Dna2 as an accessory replicative helicase

DNA replication is mediated by a multiprotein complex known as the replisome. With the hexameric MCM (minichromosome maintenance) replicative helicase at its core, the replisome splits the parental DNA strands, forming replication forks (RFs), where it catalyses coupled leading and lagging strand DNA synthesis. While replication is a highly effective process, intrinsic and oncogene-induced replication stress impedes the progression of replisomes along chromosomes. As a consequence, RFs stall, arrest, and collapse, jeopardiz- ing genome stability. In these instances, accessory fork progression and repair factors, orchestrated by the replication checkpoint, promote RF recovery, ensuring the chromosomes are fully replicated and can be safely segregated at cell division. Homologous recombination (HR) proteins play key roles in negotiating replication stress, binding at stalled RFs and shielding them from inappropriate processing. In addition, HR-mediated strand exchange reactions restart stalled or collapsed RFs and mediate error-free post-replicative repair. DNA transactions at stalled RFs further involve various DNA editing factors, notably helicases and nucleases. A study by Ölmezer et al. (2016) has recently identified a role for the structure-specific nuclease Yen1 (GEN1 in human) in the resolution of dead-end DNA replication intermediates after RF arrest. This new function of Yen1 is distinct from its previously known role as a Holliday junction resolvase, mediating the removal of branched HR intermediates, and it becomes essential for viable chromosome segregation in cells with a defective Dna2 helicase. These findings have revealed greater complexity in the tasks mediated by Yen1 and expose a replicative role for the elusive helicase activity of the conserved Dna2 nuclease-helicase

Nicole-Claude Mathieu: hacia una anatomía de las clases de sexo

Una primera versión de este texto se publicó en francés en la revista Les Cahiers du Genre, n°50, 2011 : 193-217. 193-217. Esta traducción al español es de Natalia Santiesteban

Structure-specific endonucleases and the resolution of chromosome underreplication

Complete genome duplication in every cell cycle is fundamental for genome stability and cell survival. However, chromosome replication is frequently challenged by obstacles that impede DNA replication fork (RF) progression, which subsequently causes replication stress (RS). Cells have evolved pathways of RF protection and restart that mitigate the consequences of RS and promote the completion of DNA synthesis prior to mitotic chromosome segregation. If there is entry into mitosis with underreplicated chromosomes, this results in sister-chromatid entanglements, chromosome breakage and rearrangements and aneuploidy in daughter cells. Here, we focus on the resolution of persistent replication intermediates by the structure-specific endonucleases (SSEs) MUS81, SLX1-SLX4 and GEN1. Their actions and a recently discovered pathway of mitotic DNA repair synthesis have emerged as important facilitators of replication completion and sister chromatid detachment in mitosis. As RS is induced by oncogene activation and is a common feature of cancer cells, any advances in our understanding of the molecular mechanisms related to chromosome underreplication have important biomedical implications

RTP MIDI : Recovery Journal Evaluation and Alternative Proposal

An RTP payload for MIDI commands is under development. As a part of this draft, a default resiliency mechanism for the transport over lossy networks defines a journalling method called recovery journal. But the theoretical size of this recovery journal can be very large and its format is complex. This report will present an empirical evaluation of the recovery journal size based on a few MidiFiles. We will also propose an alternative solution for the resiliency of RTP MIDI streams based on the combined use of redundancy and retransmissions. Our solution is simpler and might be interesting for some scenarios, typically: short grouping times, complex streams or unconventional semantics

Extracting discourse elements and annotating scientific documents using the SciAnnotDoc model: a use case in gender documents

When scientists are searching for informa- tion, they generally have a precise objective in mind. Instead of looking for documents “about a topic T”, they try to answer specific questions such as finding the definition of a concept, finding results for a particular problem, checking whether an idea has already been tested, or comparing the scientific conclusions of two articles. Answering these precise or complex queries on a corpus of scientific documents requires precise mod- elling of the full content of the documents. In particu- lar, each document element must be characterised by its discourse type (hypothesis, definition, result, method, etc.). In this paper we present a scientific document model (SciAnnotDoc ontology), developed from an em- pirical study conducted with scientists, that models the discourse types. We developed an automated process that analyse documents effectively identifying the dis- course types of each element. Using syntactic rules (pat- terns), we evaluated the process output in terms of pre- cision and recall using a previously annotated corpus in Gender Studies. We chose to annotate documents in Humanities, as these documents are well known to be less formalised than those in “hard science”. The process output has been used to create a SciAnnotDoc representation of the corpus on top of which we built a faceted search interface. Experiments with users show that searches using with this interface clearly outper- form standard keyword searches for precise or complex queries