The Stock Market’s Reaction to Accounting Information: The Case of the Latin American Integrated Market Abstract

The purpose of this paper is to explore the stock market’s reaction to quarterly financial statements. We focus our study in two countries that are participating in the Latin American Integrated Market (MILA): Peru and Chile. We find that the cumulative abnormal returns and the absolute value of the cumulative abnormal trading are explained principally by the quarterly earnings surprises around the financial statements release date. We find that these effects are more pronounced in small firms, confirming that due to the lower level of pre disclosure information accounting numbers are the main source of information. Key words: Accounting Information, Stock Markets, Small Firms

Multilingual and Localization Support for Ontologies

This demo proposal aims at providing support for the localization of ontologies, and as a result at obtaining multilingual ontologies. We briefly present an advanced version of LabelTranslator, our system to localize ontology terms in different natural languages. The current version of the system differs from previous works reported in [1,2] in that it relies on a modular approach to store the linguistic information associated to ontology terms. Additionally, it uses a synchronization method to maintain the conceptual and linguistic information updated

Ontology Localization

nternational organizations (e.g., FAO1 , WHO2 , etc.) are increasingly expressing the need for multilingual ontologies for di®erent purposes, e.g., ontology-based multilingual machine translation, multilingual informa- tion retrieval. However, most of the ontologies built so far have mainly English or another natural language as basis. Since multilingual ontology building is a very ex- pensive and time-consuming undertaking, we propose methods for guiding users in the localization of ontolo- gies, and provide tools for supporting the process. The main contributions of this paper are: i) the descrip- tion of a generic Ontology Localization Activity and a methodology for guiding in the localization of ontolo- gies; ii) the description of a tool built according to the guidelines proposed for an automatic localization of on- tologies; and iii) a set of experiments used to evaluate the methodological and technological aspects of the On- tology Localization Activity

Activation of Store-Operated Ca2+ Current in Xenopus Oocytes Requires SNAP-25 but Not a Diffusible Messenger

AbstractDepletion of Ca2+ stores in Xenopus oocytes activated entry of Ca2+ across the plasma membrane, which was measured as a current ISOC in subsequently formed cell-attached patches. ISOC survived excision into inside-out configuration. If cell-attached patches were formed before store depletion, ISOC was activated outside but not inside the patches. ISOC was potentiated by microinjection of Clostridium C3 transferase, which inhibits Rho GTPase, whereas ISOC was inhibited by expression of wild-type or constitutively active Rho. Activation of ISOC was also inhibited by botulinum neurotoxin A and dominant-negative mutants of SNAP-25 but was unaffected by brefeldin A. These results suggest that oocyte ISOC is dependent not on aqueous diffusible messengers but on SNAP-25, probably via exocytosis of membrane channels or regulatory molecules

Estado del arte en computación cuántica con plataformas de fuente abierta

The idea behind the QC paradigm lies in the information storage capacity in amplitude values that use systems based on Qubits or quantum bits -not in bits-, and in the processing of it when transformations are required to change these amplitudes in a precise and controlled way. Therefore, the description of the states in a computer evolves obeying different algorithms than the known ones: correcting errors and digitizing arbitrarily precise calculations through limited resources. The present documentary research, carried out by the Orion research group in 2018, establishes a state of the art of knowledge in QC oriented to education as a baseline for future research whose development platforms are open source kind. A methodology based on indexes is established to categorize and subcategorize the QC, as are: fundamentals and background, QC history, concept and operation, companies that implement the QC field, applications, platforms that are managed in QC, architecture, and finally the programming languages. Source databases such as IEEE-Xplore, EBSCO, and websites, were used to illustrate the fundamental concepts and developments that companies have specified in applications using this new paradigm.La idea que subyace al paradigma de la CC estriba en la capacidad de almacenamiento de información en valores de amplitud que usan sistemas basados en Qubits o bits cuánticos –no en bits-, y en el procesamiento de la misma cuando se requieren transformaciones para cambiar estas amplitudes de una manera precisa y controlada. Por lo anterior, la descripción de los estados en una computadora evoluciona obedeciendo a algoritmos distintos a los conocidos: corrigiendo errores y digitalizando cálculos arbitrariamente precisos a través de recursos limitados. La presente investigación documental, adelantada por el grupo de investigación Orión en 2018, establece un estado del arte del conocimiento en CC orientada a educación como línea de base para investigaciones cuyas plataformas de desarrollo sean tipo open source. Para lo anterior, se establece una metodología basada en índices para categorizar y subcategorizar la CC, como lo son: fundamentos y antecedentes, historia de la CC, concepto y funcionamiento, empresas que implementan el campo de la CC, aplicaciones, plataformas que se manejan en la CC, arquitectura, y por último los lenguajes de programación.  Las bases de datos fuente usadas fueron: IEEE-Xplore, EBSCO, y sitios web para identificar las empresas que hacen uso del paradigma CC

Combining statistical and semantic approaches to the translation of ontologies and taxonomies

Ontologies and taxonomies are widely used to organize concepts providing the basis for activities such as indexing, and as background knowledge for NLP tasks. As such, translation of these resources would prove useful to adapt these systems to new languages. However, we show that the nature of these resources is significantly different from the "free-text" paradigm used to train most statistical machine translation systems. In particular, we see significant differences in the linguistic nature of these resources and such resources have rich additional semantics. We demonstrate that as a result of these linguistic differences, standard SMT methods, in particular evaluation metrics, can produce poor performance. We then look to the task of leveraging these semantics for translation, which we approach in three ways: by adapting the translation system to the domain of the resource; by examining if semantics can help to predict the syntactic structure used in translation; and by evaluating if we can use existing translated taxonomies to disambiguate translations. We present some early results from these experiments, which shed light on the degree of success we may have with each approac

Revista comunitaria sobre la memoria histórica del Barrio San Juan

The present work discusses the importance degree of alternative communication and community relations evidenced in recognition of the culture and history of San Juan district, located in the historic center of Quito, through a community magazine on a from the collaboration of students from surrounding schools sector (10 de Agosto, Mejia and Simón Bolívar), CAC and neighborhood organizations themselves. Alternative communication is the cornerstone of this work because it is from where you can demonstrate a new type of communication, away from the mass media, where the subject is who charge value and importance of creating content. Alternative print media were chosen in the present study as it was felt that these allow the community to be part of the selection process and content production that are of interest to the neighborhood. Culture and community relations reach a play an important role in this work because they are through the analysis thereof which could have a relationship with the San Juan district, which yielded information on the need for recognition of the inhabitants who had this place.El presente trabajo de grado trata sobre la importancia de la comunicación alternativa y las relaciones comunitarias evidenciadas en el reconocimiento a la cultura e historia del barrio San Juan, ubicado en el centro histórico de la ciudad de Quito, a través de una revista comunitaria realizada a partir de la colaboración de estudiantes de colegios aledaños al sector (10 de Agosto, Mejía y Simón Bolívar), el CAC y organizaciones propias del barrio. La comunicación alternativa es el pilar fundamental del presente trabajo, porque es a partir de ella donde se puede evidenciar un nuevo tipo de comunicación, alejada de los mass media, donde el sujeto es quien cobra valor e importancia dentro de la creación de los contenidos. Los medios impresos alternativos fueron elegidos dentro del presente trabajo, pues se consideró que estos permiten a la comunidad ser parte del proceso de selección y producción de contenidos que sean de interés para el barrio

Structural compatibility between the putative voltage sensor of voltage-gated K+ channels and the prokaryotic KcsA channel.

Sequence similarity among and electrophysiological studies of known potassium channels, along with the three-dimensional structure of the Streptomyces lividans K(+) channel (KcsA), support the tenet that voltage-gated K(+) channels (Kv channels) consist of two distinct modules: the "voltage sensor" module comprising the N-terminal portion of the channel up to and including the S4 transmembrane segment and the "pore" module encompassing the C-terminal portion from the S5 transmembrane segment onward. To substantiate this modular design, we investigated whether the pore module of Kv channels may be replaced with the pore module of the prokaryotic KcsA channel. Biochemical and immunocytochemical studies showed that chimeric channels were expressed on the cell surface of Xenopus oocytes, demonstrating that they were properly synthesized, glycosylated, folded, assembled, and delivered to the plasma membrane. Unexpectedly, surface-expressed homomeric chimeras did not exhibit detectable voltage-dependent channel activity upon both hyperpolarization and depolarization regardless of the expression system used. Chimeras were, however, strongly dominant-negative when coexpressed with wild-type Kv channels, as evidenced by the complete suppression of wild-type channel activity. Notably, the dominant-negative phenotype correlated well with the formation of stable, glycosylated, nonfunctional, heteromeric channels. Collectively, these findings imply a structural compatibility between the prokaryotic pore module and the eukaryotic voltage sensor domain that leads to the biogenesis of non-responsive channels. Our results lend support to the notion that voltage-dependent channel gating depends on the precise coupling between both protein domains, probably through a localized interaction surface