R̈eports̈, 1921-1926

Mode of access: Internet.

[Agricultural] bulletin /

Mode of access: Internet.

Catalogue raisonné et illustré des séries gallo-romaines du Musée Épigraphique Cantonal de Genève.

"Extrait des Mémoires de l'Institut national genevois, tome XIX."

Dossier : Pueblos indígenas latinoamericanos: historias de lucha, memorias de resistencia

Fil: Rosas, Sabrina. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Modeling of a Heat-Induced Buckling of Plates Using the Mesh-free Method

In the process of engineering design of structural shapes, the flat plate analysis results can be generalized to predict behaviors of complete structural shapes. In this case, the purpose of this project is to analyze a thin flat plate under conductive heat transfer and to simulate the temperature distribution, thermal stresses, total displacements, and buckling deformations. The current approach in these cases has been using the Finite Element Method (FEM), whose basis is the construction of a conforming mesh. In contrast, this project uses the mesh-free Scan Solve Method. This method eliminates the meshing limitation using a non-conforming mesh. I implemented this modeling process developing numerical algorithms and software tools to model thermally induced buckling. In addition, convergence analysis was achieved, and the results were compared with FEM. In conclusion, the results demonstrate that the method gives similar solutions to FEM in quality, but it is computationally less time consuming.

Territorios campesinos y reforma agraria : el caso de las cooperativas indígenas de la sierra ecuatoriana

En este artículo, se analizan los principales cambios que se han dado en un territorio donde se implementó una reforma agraria en los años sesenta del siglo pasado, lo que permitió el acceso a la tierra por parte de los campesinos indígenas y el inicio de un proceso de "territorialización" sobre un importante espacio rural ubicado en el cantón Cayambe, provincia de Pichincha, Ecuador. Interesa sobre todo resaltar la estrategia campesina de ocupación de un territorio de hacienda y su transformación en un territorio de agriculturas familiares campesinas orientadas a la producción de leche y articuladas con las agroindustrias locales. Este proceso ha significado una mayor complejidad del territorio ahora liderado por una dinámica económica externa, lo que ha generado cambios importantes en las estrategias económicas, sociales y culturales de las familias indígenas.

Dossier : Pueblos indígenas latinoamericanos: historias de lucha, memorias de resistencia

Fil: Rosas, Sabrina. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Territorios campesinos y reforma agraria : el caso de las cooperativas indígenas de la sierra ecuatoriana

En este artículo, se analizan los principales cambios que se han dado en un territorio donde se implementó una reforma agraria en los años sesenta del siglo pasado, lo que permitió el acceso a la tierra por parte de los campesinos indígenas y el inicio de un proceso de "territorialización" sobre un importante espacio rural ubicado en el cantón Cayambe, provincia de Pichincha, Ecuador. Interesa sobre todo resaltar la estrategia campesina de ocupación de un territorio de hacienda y su transformación en un territorio de agriculturas familiares campesinas orientadas a la producción de leche y articuladas con las agroindustrias locales. Este proceso ha significado una mayor complejidad del territorio ahora liderado por una dinámica económica externa, lo que ha generado cambios importantes en las estrategias económicas, sociales y culturales de las familias indígenas.

Territorios campesinos y reforma agraria : el caso de las cooperativas indígenas de la sierra ecuatoriana

En este artículo, se analizan los principales cambios que se han dado en un territorio donde se implementó una reforma agraria en los años sesenta del siglo pasado, lo que permitió el acceso a la tierra por parte de los campesinos indígenas y el inicio de un proceso de "territorialización" sobre un importante espacio rural ubicado en el cantón Cayambe, provincia de Pichincha, Ecuador. Interesa sobre todo resaltar la estrategia campesina de ocupación de un territorio de hacienda y su transformación en un territorio de agriculturas familiares campesinas orientadas a la producción de leche y articuladas con las agroindustrias locales. Este proceso ha significado una mayor complejidad del territorio ahora liderado por una dinámica económica externa, lo que ha generado cambios importantes en las estrategias económicas, sociales y culturales de las familias indígenas.

Undergrowth removal in Salgesch: Soil volumetric water content and temperature time series, hourly time resolution, 2010-2015

In the Salgesch forest in the Canton of Valais in Switzerland, the understory has been removed to test whether effects on pine tree vitality. The data set published here compromises 120 time series of 60 soil temperature and 60 volumetric water content (VWC) sensors (EC-TM and 5-TM) (Decagon Devices, WA, USA) at three soil depth levels (5, 30, 60 cm) employed in the direct vicinity of six control trees and six trees with the undergrowth removed. At the levels 5 and 60 cm, three replications were made whereas 4 replications were made at level 30 cm. Six loggers recorded hourly data since 2010 with 18% gaps or 11% when not considering winter months December, January and February. The figure attached to this repository shows the average VWC and temperature of all measurements within the same depth and treatment specific setting aggregated in a defined time interval and period. In addition to that, the standard deviations are plotted as transparent polygons. In case of insufficient values for calculating standard deviations, the setting specific mean standard deviation of the considered time period are inserted.

The white gene and locomotor recovery from anoxia in Drosophila melanogaster

Locomotor recovery from anoxia is complicated and little is known about the molecular and cellular mechanisms regulating anoxic recovery in Drosophila. For this thesis I established a protocol for large-scale analysis of locomotor activity in adult flies with exposure to a transient anoxia. Using this protocol I observed that wild-type Canton-S flies recovered faster and more consistently from anoxia than the white-eyed mutant w1118, which carries a null allele of w1118 in an isogenic genetic background. Both Canton-S and w1118 are commonly used controls in the Drosophila community. Genetic analysis including serial backcrossing, RNAi knockdown, w+ duplication to Y chromosome as well as gene mutation revealed a strong association between the white gene and the timing of locomotor recovery. I also found that the locomotor recovery phenotype is independent of white-associated eye pigmentation, that heterozygous w+ allele was haplo-insufficient to induce fast and consistent locomotor recovery from anoxia in female flies, and that mini-white is insufficient to promote fast and consistent locomotor recovery. Moreover, locomotor recovery was delayed in flies with RNAi knockdown of white in subsets of serotonin neurons in the central nervous system. I further demonstrated that mutations of phosphodiesterase genes (PDE) displayed wild-type-like fast and consistent locomotor recovery, and that locomotor recovery was light-sensitive in the night in w1118. The delayed locomotor recovery and the light sensitivity were eliminated in PDE mutants that were dual-specific or cyclic guanosine monophosphate (cGMP)-specific. Up-regulation of cGMP using multiple approaches including PDE mutation, sildenafil feeding or specific expression of an atypical soluble guanylyl cyclase (Gyc88E) was sufficient to suppress w-RNAi induced delay of locomotor recovery. Taken together, these data strongly support the hypothesis that White transports cGMP and promotes fast and consistent locomotor recovery from anoxia.

Increased hippocampal excitability and impaired spatial memory function in mice lacking VGLUT2 selectively in neurons defined by tyrosine hydroxylase promoter activity

Three populations of neurons expressing the vesicular glutamate transporter 2 (Vglut2) were recently described in the A10 area of the mouse midbrain, of which two populations were shown to express the gene encoding, the rate-limiting enzyme for catecholamine synthesis, tyrosine hydroxylase (TH).One of these populations (‘‘TH– Vglut2 Class1’’) also expressed the dopamine transporter (DAT) gene while one did not ("TH–Vglut2 Class2"), and the remaining population did not express TH at all ("TH-Vglut2-only"). TH is known to be expressed by a promoter which shows two phases of activation, a transient one early during embryonal development, and a later one which gives rise to stable endogenous expression of the TH gene. The transient phase is, however, not specific to catecholaminergic neurons, a feature taken to advantage here as it enabled Vglut2 gene targeting within all three A10 populations expressing this gene, thus creating a new conditional knockout. These knockout mice showed impairment in spatial memory function. Electrophysiological analyses revealed a profound alteration of oscillatory activity in the CA3 region of the hippocampus. In addition to identifying a novel role for Vglut2 in hippocampus function, this study points to the need for improved genetic tools for targeting of the diversity of subpopulations of the A10 area

Alltagsintegrierte Sprachförderung in der Spielgruppe. Welche Fachperson-Kind-Interaktionen finden statt?

Präventive Massnahmen zur frühen Förderung des Zweitspracherwerbs werden u.a. in Spielgruppen implementiert. In der diesbezüglichen Qualifizierung der Spielgruppenleitenden im Kanton Basel-Stadt spielt der Ansatz der alltagsintegrierten Förderung eine tragende Rolle. Jegliche Dialoge, Erwachsenen- wie kind-initiierte, sind hier Fördergelegenheiten. In einer Teilstudie des SNF-geförderten Forschungsprojekts „MeKi – Frühe sprachliche Förderung mehrsprachiger Kinder ab 3 Jahren“ werden die Interaktionen zwischen Spielgruppenleitenden und einzelnen Zielkindern videographiert und gesprächsanalytisch untersucht. Der folgende Beitrag konzentriert sich auf die empirisch ermittelten Interaktionsarten und die Interpretation ihres Sprachfördergehalts. (DIPF/Orig.)