Connections between signal processing and complex analysis

We describe one of the research lines of the Grup de Teoria de Funcions de la UAB UB, which deals with sampling and interpolation problems in signal analysis and their connections with complex function theory.

Investigation of Earlham Community School District Employee’s Personal Use of a School Vehicle, July 6, 2012

We received a complaint in late September 2011 that an Earlham School District employee had borrowed a school vehicle for her personal use for one month, with the Superintendent’s permission. The school board had discussed the circumstances of the borrowed district vehicle in closed session. The complainant believed this was contrary to Iowa law and also believed no action had been taken against the school employee who borrowed the vehicle or the superintendent who allowed the personal use of the vehicle. He was aware the school district’s attorney reviewed the matter and determined the employee and superintendent violated no law or district policies. Since the school board discussed the matter only in closed session, it was unknown what, if any, discipline was taken against the employees and whether such actions were condoned by the district. We agreed to investigate to determine if the actions of school officials or employees violated Iowa law and if the response from the school board was appropriate.

Reelin regulates the development and synaptogenesis of the layer-specific entorhino-hippocampal connections

Here we examine the role of Reelin, an extracellular protein involved in neuronal migration, in the formation of hippocampal connections. Both at prenatal and postnatal stages, the general laminar and topographic distribution of entorhinal projections is preserved in the hippocampus of reeler mutant mice, in the absence of Reelin. However, developing and adult entorhinal afferents show severe alterations, including increased numbers of misrouted fibers and the formation of abnormal patches of termination from the medial and lateral entorhinal cortices. At perinatal stages, single entorhinal axons in reeler mice are grouped into thick bundles, and they have decreased axonal branching and decreased extension of axon collaterals. We also show that the number of entorhino-hippocampal synapses is lower in reeler mice than in control animals during development. Studies performed in mixed entorhino-hippocampal co-cultures combining slices from reeler and wild-type mice indicate that these abnormalities are caused by the lack of Reelin in the target hippocampus. These findings imply that Reelin fulfills a modulatory role during the formation of layer-specific and topographic connections in the hippocampus. They also suggest that Reelin promotes maturation of single fibers and synaptogenesis by entorhinal afferents.

TrkB and TrkC signaling are required for maturation and synaptogenesis of hippocampal connections

Recent studies have suggested a role for neurotrophins in the growth and refinement of neural connections, in dendritic growth, and in activity-dependent adult plasticity. To unravel the role of endogenous neurotrophins in the development of neural connections in the CNS, we studied the ontogeny of hippocampal afferents intrkB (¿/¿) and trkC (¿/¿) mice. Injections of lipophilic tracers in the entorhinal cortex and hippocampus of newborn mutant mice showed that the ingrowth of entorhinal and commissural/associational afferents to the hippocampus was not affected by these mutations. Similarly, injections of biocytin in postnatal mutant mice (P10¿P16) did not reveal major differences in the topographic patterns of hippocampal connections. In contrast, quantification of biocytin-filled axons showed that commissural and entorhinal afferents have a reduced number of axon collaterals (21¿49%) and decreased densities of axonal varicosities (8¿17%) in both trkB (¿/¿) and trkC (¿/¿) mice. In addition, electron microscopic analyses showed thattrkB (¿/¿) and trkC (¿/¿) mice have lower densities of synaptic contacts and important structural alterations of presynaptic boutons, such as decreased density of synaptic vesicles. Finally, immunocytochemical studies revealed a reduced expression of the synaptic-associated proteins responsible for synaptic vesicle exocytosis and neurotransmitter release (v-SNAREs and t-SNAREs), especially in trkB (¿/¿) mice. We conclude that neither trkB nor trkC genes are essential for the ingrowth or layer-specific targeting of hippocampal connections, although the lack of these receptors results in reduced axonal arborization and synaptic density, which indicates a role for TrkB and TrkC receptors in the developmental regulation of synaptic inputs in the CNS in vivo. The data also suggest that the genes encoding for synaptic proteins may be targets of TrkB and TrkC signaling pathways.

Aplicación de una técnica operativa con carácter discriminatorio en los procesos de selección de personal

Existen técnicas clásicas cuya función es seleccionar aquellas personas que son idóneas para un determinado puesto de trabajo. El punto fundamental consiste en adaptar una persona a un perfíl de tareas que esa persona debe desarrollar y al mismo tiempo esa persona debe sentirse parte integrante de la empresa, para conseguirlo, en el presente trabajo expondremos una nueva técnica para la selección de personal ejecutivo y basada en la teoría de los subconjuntos borrosos dentro de las nuevas técnicas operativas de gestión.

La història cultural i l'intel·lectual professional. Una visió personal

The author exposes the main research lines in the history of local culture. He briefly considers the main lines in cultural contemporary history investigation. The author studies the introduction and development of cultural history based on the concept of intellectual professional in Catalan historiography at a moment when economical and social research were preferred by a large part of local historians.

Identidad personal y subjetividad social: educación y constitución subjetiva

La constitución subjetiva en nuestra sociedad contemporánea debe ser abordada dentro de la compleja trama de relaciones intersubjetivas y desde diferentes formulaciones teóricas. La construcción del sujeto involucra la existencia de un "otro", que le da sentido a su existencia y a la constitución/adquisición de identidades sociales/colectivas. Ese proceso se aborda en términos de representaciones sociales, como expresión del sentido común, que se desarrollan en complejos procesos que involucran estabilidad de largo alcance y antinomias -themata- que definen las situaciones de tensión, inherentes y propias, del devenir del sentido común. Se considerarán cuatro procesos psicosociales: 1) La Identidad como producto intersubjetivo. 2) La Representación social como expresión de la identidad. 3) Los themata como constitutivos de la Representación social. 4) La interdependencia simbólica Yo/Otros. Se ilustrará con ejemplos de dos investigaciones, en Ciers-ed y en Universidad de Buenos Aires sobre educación

Design Guide for Precast UHPC Waffle Deck Panel System, including Connections, June 2013

Abstract: As a part of an innovation project funded by the Federal Highway Administration (FHWA) Highways for LIFE program, a full-depth precast, ultra-high-performance concrete (UHPC) waffle deck panel and appropriate connections suitable for field implementation of waffle decks were developed. Following a successful full-scale validation test on a unit consisting of two panels with various types of connections under laboratory conditions, the waffle deck was installed successfully on a replacement bridge in Wapello County, Iowa. The subsequent load testing confirmed the desirable performance of the UHPC waffle deck bridge. Using the lessons from the completed project and outcomes from a series of simple and detailed finite element analyses of waffle decks, this report was developed to serve as a guide for broadening the design and installation of the UHPC waffle deck panel in new and existing bridges. Following an introduction to UHPC and waffle deck panels and a summary of completed work, this document presents information on waffle deck design, design of connections, redecking using waffle deck panels, and guidance on precast fabrication, construction, and installation of UHPC waffle deck panels.

La història cultural i l'intel·lectual professional. Una visió personal

The author exposes the main research lines in the history of local culture. He briefly considers the main lines in cultural contemporary history investigation. The author studies the introduction and development of cultural history based on the concept of intellectual professional in Catalan historiography at a moment when economical and social research were preferred by a large part of local historians.

La depuración del personal del Museo Arqueológico de Barcelona y del Servicio de Investigaciones Arqueológicas después de la Guerra Civil (1939-1941)

Al finalizar la Guerra Civil española (1936-1939), el personal del Museu d' Arqueologia y de la Secció d'Excavacions i Arqueologia del Servei del Patrimoni Artístic, Historic i Científic (SPAHC) de la suprimida Generalitat de Catalunya fue sometido a depuración por parte del Juzgado Militar Especial de Funcionarios de la Diputación Provincial de Barcelona. La llegada como nuevo director de Martín Almagro Basch, en substitución del exiliado Pere Bosch Gimpera, y el resultado de la reorganización subsiguiente marcaron el desarrollo de la investigación arqueológica en Cataluña hasta finales de la década de 1960.

Report on a special investigation of Remsen-Union Family Connections for the period July 1, 2011 through October 31, 2012

Report on a special investigation of Remsen-Union Family Connections for the period July 1, 2011 through October 31, 2012

Chronic Disease Connections, September 2013

IDPH has a new grant-funded program, the Health Promotion and Chronic Disease Control Partnership. This publication, Chronic Disease Connections, will be part of the communication strategy between IDPH staff and healthcare system providers throughout the state as we partner to help patients control their diabetes and high blood pressure. This is just one of the major objectives for the funding. The CDC would like to see that more patients are aware that they have pre-diabetes, diabetes or high blood pressure and that health systems are maximizing evidence-based strategies to assist patients with achieving control. Over the coming months you will hear more about the new program and how you can become involved.

Chronic Disease Connections, October 2013

IDPH has a new grant-funded program, the Health Promotion and Chronic Disease Control Partnership. This publication, Chronic Disease Connections, will be part of the communication strategy between IDPH staff and healthcare system providers throughout the state as we partner to help patients control their diabetes and high blood pressure. This is just one of the major objectives for the funding. The CDC would like to see that more patients are aware that they have pre-diabetes, diabetes or high blood pressure and that health systems are maximizing evidence-based strategies to assist patients with achieving control. Over the coming months you will hear more about the new program and how you can become involved.

Chronic Disease Connections, November 2013

IDPH has a new grant-funded program, the Health Promotion and Chronic Disease Control Partnership. This publication, Chronic Disease Connections, will be part of the communication strategy between IDPH staff and healthcare system providers throughout the state as we partner to help patients control their diabetes and high blood pressure. This is just one of the major objectives for the funding. The CDC would like to see that more patients are aware that they have pre-diabetes, diabetes or high blood pressure and that health systems are maximizing evidence-based strategies to assist patients with achieving control. Over the coming months you will hear more about the new program and how you can become involved.