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Search Results: 1 - 10 of 7647 matches for " Karen;Espinosa "
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Identidad, etnicidad y bienestar social en un contexto socialmente excluyente
Genna, Karen;Espinosa, Agustín;
Psicologia & Sociedade , 2012, DOI: 10.1590/S0102-71822012000100010
Abstract: the study analyzes stereotypical representations of peruvian ethnic groups in a sample of middle class adults from lima (n=130). additionally, relationship between ethnic identification and social welfare is analyzed. in respect to stereotypical contents, it is observed the ambivalent representation of high and low status groups which are differentiated by their access to power and resources. the high status group includes white-peruvians perceived as successful and non-patriotic people. participants show high identification to this group and this identification is directly related to social welfare. on the other hand, andeans, amazonians and afro-peruvians were perceived as less successful but more affective and expressive groups. participants show lower identification with these groups and these identifications are no related to social welfare.
Correlatos Psicológicos de las Intenciones y Comportamientos Migratorios de Jóvenes Peruanos de Clase Media y Alta
Espinosa,Agustín; Herschkowicz,Stephanie; Genna,Karen;
Psicoperspectivas , 2011, DOI: 10.5027/psicoperspectivas-Vol10-Issue1-fulltext-143
Abstract: this study analyses relationship among several psychological variables as personality traits, personal values and emotional climate with emigrational intentions and migratory behavior of high and middle-class students and young professionals from peru. in that sense, three groups of participants were compared: those who do not want to emigrate (n=33), those who want to emigrate (n=33) and those who already had emigrated (n=33). related to personality, trait of consciousness is inversely associated to intention of emigrate and emigrational behavior. on the other hand, values directly associated to emigrational intentions were those that belong to self-enhancement and openness to change objectives meanwhile values inversely associated to these intentions were the conservative ones. emotional climate perceptions showed a complex tendency that influences emigrational intentions. however, based on our data, it is difficult to identify specific influences from specific types of emotional climates in emigrational processes. finally, considering the social and economic characteristics of the sample, it is suggested that reasons that influence migration processes are more individualistic -associated to personality traits and values- than collectivistic -associated to emotional climate.
Diferenciación de ácido acetilsalicílico utilizando la técnica de espectroscopia Raman y el análisis de componentes principales
Juan Carlos Martínez-Espinosa,Nayem Amtanus-Chequer,Karen Cruz-Solano,Octavio Elias-Campos
Acta Universitaria , 2012,
Abstract: Recientemente la técnica de espectroscopia Raman ha sido aplicada en áreas como médicas, farmacéuticas y nanotecnología para determinar las concentraciones y diferencias en las soluciones de compuestos orgánicos e inorgánicos. En éste trabajo se analizaron las diferencias respecto a las concentraciones de los compuestos de una forma farmacéutica derivada del ácido acetilsalicílico comercial en forma de comprimido fabricado por 5 diferentes laboratorios. Los datos en bruto se obtuvieron a partir del acido acetil salicílico como principio activo, y 5 muestras de diferentes laboratorios fueron también analizadas. El bloque espectral se obtuvo utilizando un equipo de microscopia Raman Horiba-JY HR800 con una fuente de excitación de 830 nm y 17 mW de potencia. El algoritmo del PCA fue desarrollado en MatLab y aplicado al bloque espectral. Concluyendo que la aplicación de la espectroscopia Raman a la farmacología ofrece información sobre la efectividad farmacológica del ácido acetilsalicílico como analgésico y antipirético.
An Indoor Radon Survey in Three Different Climate Regions in Mexico, and the Influence of Climate in the Obtained Values  [PDF]
Guillermo Espinosa, Richard Gammage
Journal of Environmental Protection (JEP) , 2011, DOI: 10.4236/jep.2011.29133
Abstract: In this paper we present the results of a survey of indoor radon concentration levels in Mexico. In order to investigate whether differences in climate translate into significant differences in indoor radon concentrations, the country was divided into three climate regions: the northern semi-desert region, the central semitropical region and the southern tropical region. The survey was carried out using nuclear track methodology. The dosimeters employed for the survey were based on the passive closed-end cup device, developed at the Physics Institute of the National Autonomous University of Mexico, and used PADC as detector material. A well-established protocol for chemically etching and reading the detectors was followed. Average annual temperatures differ between regions (from 15℃ to 28℃) but vary relatively little within each region. Atmospheric temperature is one of the most important factors which need to be considered when carrying out a survey of indoor radon concentrations because temperature largely determines building ventilation habits, and ventilation habits are known to have significant effects on indoor radon concentrations. Other factors, including building construction materials, architectural styles, geological and hydrological characteristics, and seismicity, vary from region to region and within each region. In each of the three regions low levels of indoor radon (from 37 to 179 Bq·m-3) were found.
State Variable Model for Considering the Parasitic Inductor Resistance on the Open Loop Performance of DC to DC Converters  [PDF]
Carlos Alberto Lozano Espinosa
Journal of Computer and Communications (JCC) , 2014, DOI: 10.4236/jcc.2014.213006

This paper shows DC and small-signal circuit models for the PWM DC to DC buck, boost and back/ boost converters with the equivalent series resistance of the inductor. The DC voltage transfer function and the efficiency of the converter are derived from the DC model. Small-signal open-loop characteristics are derived from the small-signal model based on a state variable model. A design example proves the performance of the circuit and verification of the model.

Stimulation of the Protective Response to Actinomycetoma by Nocardia brasiliensis in Mice Treated with Candida albicans Antigens  [PDF]
Alejandro Palma-Ramos, Violeta Karen Espinosa-Antunez, Laura Estela Castrillón-Rivera, Oralia Nájera-Medina, María Elisa Vega-Memije, Roberto Arenas-Guzmán, María Elisa Drago-Serrano, Teresita Sainz-Espu?es
Advances in Microbiology (AiM) , 2014, DOI: 10.4236/aim.2014.46036

Actinomycetoma is a chronic subcutaneous lesion caused by the pathogenic bacterium Nocardia (N.) brasiliensis. Yeast antigens of Candida (C.) albicans increase the interferon (IFN)-γ and TCD4+ cells levels that enhance the phagocytic killing of N. brasiliensis, able to survive inside phagocytes and to grow in clustered colonies that form grains. The aim of this work was to test the effect of a crude protein extract of C. albicans on the levels of IFN-γ producing TCD4+ cells and on the outcome of actinomycetoma lesion. Five BALB/c mice with N. brasiliensis infection at left hind footpad were treated four times every other day with C. albicans crude protein extract (CPE). Five uninfected mice treated with CPE or infected mice treated with sterile phosphate-saline buffer were included as positive and negative control groups, respectively. Footpad thickness was recorded in all groups. Once the treatments were finished, single cell suspensions from blood and spleen were prepared for assessing the amount (%) of IFN-

Defending the Self in a Total Institution: Staff Prompting and Patient Burlesque  [PDF]
Karen Bettez Halnon
Sociology Mind (SM) , 2012, DOI: 10.4236/sm.2012.24060
Abstract: This paper offers an analysis of forms of social interaction between direct care staff and patient members of a state institution for the “Mentally Retarded” (MR) and dually-diagnosed (MR with a mental disorder diagnosis) located in the northeastern United States. This work’s significance is that it updates and extends Erving Goffman’s (1961) classic study of the underlife of total institutions. It does so by delineating a sub-type of secondary adjustment to total institutions, termed ancillary adjustment. Ancillary adjustment is defined as performances of patient role that undercut the institution’s official prescription for patient identity toward normalizing direct staff member identity. It is shown how ancillary adjustment arose as an unintended consequence of the institutional reforms of the 1970s, or how, under a professionally reformed and bureaucratized “New School”, direct care staff members experienced themselves as disempowered and discredited as “normal” professionals and defensively and repeatedly cued hyper-stigmatized comedic spectacles through types of staff-patient interaction termed staff prompting and patient burlesque. This paper is based on a three-year fieldwork study entitled Defending the Self in an Institution for the Mentally Retarded that utilized Glaser and Strauss’ (1967) and Strauss and Corbin’s (1990) grounded theory methods for qualitative research.
Embracing Empowerment in the Healthcare of the United States  [PDF]
Bozena Padykula, Karen Wexell
Open Journal of Leadership (OJL) , 2013, DOI: 10.4236/ojl.2013.24013

The United States experiences an economic and healthcare crisis that calls for change. Transformational leadership model by Kouzes and Posner (2003) defines traits that are important to embrace by today’s healthcare leaders in promoting organizational change. To promote growth, engaging and empowering all members in the organization opens the door for collaborative work intentionally establishing sustainable healthcare outcomes. Since nurses play a significant role in US and global healthcare systems, healthcare organizations demand empowered nursing leaders that have an equal voice. The significance of this review to the future is to awaken nursing leaders to step away from a dependent mode and to step forward to an empowered mode.

Plasma cell pleocytosis in HSV-2 aseptic meningitis  [PDF]
Rohit Kalia, Karen Hennessey
Open Journal of Internal Medicine (OJIM) , 2013, DOI: 10.4236/ojim.2013.34026

Plasma cell pleocytosis has been seen in cerebrospinal fluid (CSF) analysis of patients with multiple myeloma, multiple sclerosis, leukemia, west nile encephalitis and lymphoma. There also have been some anecdotal reports suggesting the presence of plasma cells in CSF as possible early indicator of WNV encephalitis. We describe a case of plasma cell pleocytosis in CSF due to HSV-2 meningitis, adding it to the list of possible etiologies for the same. 

The Role of Technology in the Marketing Communications Industry: An Exploratory Study of the Impact of North American Influence on Local Business in Trinidad and Tobago  [PDF]
Prahalad Sooknanan, Karen Crichlow
Advances in Journalism and Communication (AJC) , 2014, DOI: 10.4236/ajc.2014.23009
Abstract: New communication technologies such as the Internet are causing sweeping changes within the global marketing communications industry. Therefore, the implications of e-marketing for business in Trinidad and Tobago are profound as seen in a national plan to address this need. This study examines the efforts of local businesses and consumers to get on the e-marketing bandwagon already commonplace in the U.S. Two surveys were conducted among local businesses and local consumers to determine their readiness and/or success. In spite of governmental efforts to expand Internet capabilities, lethargy and lack of access still plague local businesses. This contrasts with local consumers who are more receptive to e-marketing expressing an increasing demand for online information. It is therefore imperative for the T&T government to address the deficiencies in its ICT plan so that local businesses and consumers can catch up with the rest of the world before the gap widens to a point where it becomes impossible to do so.
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