Análisis exploratorio de la comunicación en las organizaciones empresariales y su impacto en algunos variables del rendimiento [por] Guillermina Garza Treviño

UANL

Estudio exploratorio de algunas variables psicosociales de pacientes deprimidos y su relación con la conducta parasuicida [por] Juana Guerrero Díaz

Tesis (Maestría en Trabajo Social) U.A.N.L.

Asociación de variables dasonómicas a diferentes niveles de producción de conos en pino piñonero Pinus cembroides Zucc. en el sur de Nuevo León, México

Tesis (Maestría en Ciencias Forestales) U.A.N.L.

Variables que afectan las propiedades de soldabilidad e integridad del recubrimiento de Galvanneal en un acero IF [por] Carlos Alejandro Campos Garza

Tesis (Maestría en Ciencias de la Ingeniería Mecánica con Especialidad en Materiales) U.A.N.L.

Optimización de las variables envueltas en el maquinado en un torno de control numérico computarizado

Tesis (Maestro en Ciencias de la Ingeniería de Manufactura con Especialidad en Automatización) U.A.N.L.

Optimización de las variables envueltas en el maquinado en un centro de maquinado de control numérico computarizado

Tesis (Maestro en Ciencias de la Ingeniería de Manufactura con Especialidad en Automatización) - Universidad Autónoma de Nuevo León, Facultad de Ingeniería Mecánica y Eléctrica.

Estructura espacial y relaciones entre características del suelo y variables dasometricas en ecosistemas forestales del sur de Nuevo León.

Tesis (Maestría en Ciencias Forestales) UANL, 2010.

Estudio de la relación variables de proceso, microestructura y propiedades del hierro grafito compacto.

Tesis (Maestría en Ciencias de la Ingeniería Mecánica con Especialidad en Materiales) UANL, 2011.

Estudio comparativo de variables psicosociales relacionadas con la calidad de vida en mujeres con cáncer de mama.

Tesis (Maestría en Ciencias) UANL, 2012.

Identificar las variables psicométricas críticas para la selección de candidatos al puesto de ejecutivo de servicio telefónico, en una empresa del sector financiero.

Tesis (Maestría en Psicología Laboral y Organizacional) UANL, 2011.

Interrelación entre las principales variables de la organización familiar y la fecundidad

UANL

Melanosomal targeting sequences from gp100 are essential for MHC class II-restricted endogenous epitope presentation and mobilization to endosomal compartments

CD4+ T lymphocytes play an important role in CD8+ T cell-mediated responses against tumors. Considering that about 20% of melanomas express major histocompatibility complex (MHC) class II, it is plausible that concomitant antigenic presentation by MHC class I and class II complexes shapes positive (helper T cells) or negative (regulatory T cells) anti-tumor responses. Interestingly, gp100, a melanoma antigen, can be presented by both MHC class I and class II when expressed endogenously, suggesting that it can reach endosomal/MHC class II compartments (MIIC). Here, we demonstrated that the gp100 putative amino-terminal signal sequence and the last 70 residues in carboxy-terminus, are essential for MIIC localization and MHC class II presentation. Confocal microscopy analyses confirmed that gp100 was localized in LAMP-1+ endosomal/MIIC. Gp100-targeting sequences were characterized by deleting different sections in the carboxy-terminus (residues 590 to 661). Transfection in 293T cells, expressing MHC class I and class II molecules, revealed that specific deletions in carboxy-terminus resulted in decreased MHC class II presentation, without effects on MHC class I presentation, suggesting a role in MIIC trafficking for these deleted sections. Then, we used these gp100-targeting sequences to mobilize the green fluorescent protein (GFP) to endosomal compartments, and to allow MHC class II and class I presentation of minimal endogenous epitopes. Thus, we concluded that these specific sequences are MIIC targeting motifs. Consequently, these sequences could be included in expression cassettes for endogenously expressed tumor or viral antigens to promote MHC class II and class I presentation and optimize in vivo T cell responses, or as an in vitro tool for characterization of new MHC class II epitopes.

Empirical Assessment of an Intertemporal Option Pricing Model with Latent variables

This paper assesses the empirical performance of an intertemporal option pricing model with latent variables which generalizes the Hull-White stochastic volatility formula. Using this generalized formula in an ad-hoc fashion to extract two implicit parameters and forecast next day S&P 500 option prices, we obtain similar pricing errors than with implied volatility alone as in the Hull-White case. When we specialize this model to an equilibrium recursive utility model, we show through simulations that option prices are more informative than stock prices about the structural parameters of the model. We also show that a simple method of moments with a panel of option prices provides good estimates of the parameters of the model. This lays the ground for an empirical assessment of this equilibrium model with S&P 500 option prices in terms of pricing errors.

Organizational Design of R&D Activities

This paper addresses the question of whether R&D should be carried out by an independent research unit or be produced in-house by the firm marketing the innovation. We define two organizational structures. In an integrated structure, the firm that markets the innovation also carries out and finances research leading to the innovation. In an independent structure, the firm that markets the innovation buys it from an independent research unit which is financed externally. We compare the two structures under the assumption that the research unit has some private information about the real cost of developing the new product. When development costs are negatively correlated with revenues from the innovation, the integrated structure dominates. The independent structure dominates in the opposite case.