Biology, Systematics, Phylogenetic Analysis and DNA Character-Based Species Diagnosis of the False Root-Knot Nematode \u3ci\u3eNacobbus aberrans\u3c/i\u3e (Thorne, 1935) Thorne & Allen 1944 (Nemata:Pratylenchidae)

The False Root-Knot nematode Nacobbus aberrans is a plant parasitic nematode that causes yield losses in several crops and plant protection agencies have established regulations to prevent infestations from spreading to new agricultural areas. The taxonomic status of the nematode has been the subject of controversy due to wide degree of variation exhibited by the species. This variability has led to the suggestion that N. aberrans is actually a species complex rather than a single species. In order to test this hypothesis, we compared twelve N. aberrans populations, which include isolates from western Nebraska, two distinct regions of Mexico and the lowlands of Argentina. The specimens were obtained from different hosts and analyzed by physiological, morphological, phylogenetic approaches. The physiological response of the nematode cultured on a common host together with the variation detected in the multivariate morphometric analysis revealed a slight tendency to differentiate groups. This intraspecific variation was confirmed and clarified using phylogenetic inference of nuclear and mitochondrial markers. Analysis of these molecular markers resolved four groups that displayed a well-defined geographic pattern of distribution. The following discrete groupings were recognized: I. Nebraska, II. Mexican North region, III. Mexican Central region, IV. The Argentinean lowlands. The median-joining network analysis of mitochondrial marker was congruent with the four geographic and genetic lineages and separated from each other by a genetic distance of 63-92 mutational steps. AMOVA analysis of the four groups revealed significant differences among the hierarchical levels, with the vast majority of the genetic variation concentrated among the four geographic groups. A character-based barcode analysis allowed identification of “pure” diagnostic characters for each group that contributed further evidence that N. aberrans is a species complex composed of at least four species. The population from Nebraska meets the criteria for consideration as a separate species. We recommend that this isolate be reinstated to N. batatiformis Thorne and Schuster, 1956 as it was originally described. Advisor: Thomas O. Power

Robotic Swarms: Assembly and Complexity

This thesis focuses on the assembly of robotic swarms that move according to some global signal in a model called the “tilt” model. The model consists of a 2D board that contain open and blocked spaces, along with tiles or polyominoes that move toward a signaled cardinal direction. We look at two variations of this model called the single-step and full-tilt model, where the elements move single distances or maximally, respectively, when a signal is send. We show different methods of shape construction, defining board configurations that are universal for a set of shapes. Afterwards, we analyze different computational problems that arise from the tilt model in the latter chapters of this thesis. This thesis consists of published work in algorithmic and computational complexity conferences, along with new material that improve upon old contributions

D4.2 Mobile Notification System

This deliverable presents the Mobile Notification system. It reports on the outcomes of the work conducted so far under Task 4.2: Context-aware notification system.weSPOT Project IST (FP7/2007-2013) under grant agreement N° 318499

DojoIBL: Nurturing Communities of Inquiry

Demo paper presented at EC-TEL 2016This paper presents and outlines the demonstration of DojoIBL, a web-based platform that aims at nurturing communities of inquiry by supporting communication and collaboration with emerging technological affordances. The manuscript briefly elaborates on the theoretical underpinning of DojoIBL and describes the functionalities supported. It concludes anticipating the follow up implementation which will consist on the integration of role support in DojoIBL

Estimación de pérdidas económicas directas provocadas por inundación. Aplicación de las curvas inundación-daños en países en desarrollo

Las inundaciones son los desastres causados por fenómenos naturales que más daños provocan a diferentes sectores, como son los de la vivienda, comercial, agrícola, turístico e industrial. Este último es un sector que sufre importantes daños, pero que no ha sido estudiado ya que se le consideraba como poco vulnerable y con capacidad de adaptación ante desastres naturales. La implementación de una metodología para calcular los daños directos tangibles en función de la altura de lámina de agua alcanzada vs daños económicos, permite tener estimaciones de las pérdidas económicas causadas por inundaciones. Este trabajo muestra el estado del arte e identifica las investigaciones referentes al cálculo de daños provocados por inundación y su aplicación en países en desarrollo como lo es México.Universidad Autónoma del Estado de Méxic

Alternative sources of starting materials

Biomass is the source of renewable carbon that will allow to achieve the future development of our society. With the prospect of the fossil resources depletion, it is necessary to find new alternative sources of energy and raw materials. Chemistry will play a key role to design new materials from biomass which will reshape our way of living and consumption.Fil: Spanevello, Rolando Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Química Rosario; ArgentinaFil: Suarez, Alejandra Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Química Rosario; ArgentinaFil: Sarotti, Ariel Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Química Rosario; Argentin

El relieve, factor para la génesis, desarrollo y gestión del riesgo

Se expone la importancia que tiene el relieve como variable de origen, desarrollo y gestión del riesgo. Asimismo, se presenta la síntesis de algunos desastres ocurridos en el mundo y en México y se señala la vinculación que poseen con el relieve. A su vez, se expone una matriz que involucra las relaciones teóricas entre la exposición física a un desastre y la vulnerabilidad. Al respecto, se discute acerca del sistema de correlación formado por la naturaleza y la sociedad en un vínculo de evolución y dinámica y la relación entre variables que se asocian con el desarrollo y cambio de los geosistemas perturbadores y los de enlace. Finalmente, se ofrece un esbozo idealizado referente a la gestión del riesgo y a sus componentes principales

Microwave-assisted asymmetric Diels-Alder reaction using chiral auxiliaries derived from biomass

Microwave-assisted asymmetric Diels-Alder reactions using levoglucosenone-derived chiral auxiliaries have been investigated. The cycloaddition reaction between the corresponding chiral acrylate and cyclopentadiene showed important rate enhancements under microwave irradiation compared to conventional heating conditions, whereas the yields and diastereoselectivities were not significantly affected.Fil: Sarotti, Ariel Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Química Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario; ArgentinaFil: Spanevello, Rolando Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Química Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario; ArgentinaFil: Suarez, Alejandra Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Química Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario; Argentin