52 research outputs found

    Is strategic proactivity a driver of an environmental strategy? Effects of innovation and internationalization leadership

    Get PDF
    This study analyses strategic proactivity as a driving factor in the implementation of an advanced environmental strategy in a firm. Strategic proactivity is defined as a firm''s tendency to initiate voluntary changes instead of reacting to events in the environment and according to previous literature, can be interpreted as a combination of internal factors that characterise a firm''s business strategy as that of a prospector firm. In this study, we measured this through innovation, with two variables related to the firm''s entire production cycle: R&D expenditure and patents. However, we also considered two more strategic proactivity indicators: innovation proactivity and internationalisation proactivity. These two proactivity variables take into account the innovative and international actions of the firms, going beyond the actions usually taken by firms in the same sector. Using panel data methodology, we obtained results that show that firms who invest in R&D and patent their innovations achievemore advanced positions in their environmental strategies. Empirical evidence also shows that firms with a greater innovation effort throughout the production cycle (product, process, organisation and marketing) than their competitors also attain more advanced positions (proactivity) in environmental matters. In other words, innovation proactivity is a driver of environmental strategy. In relation to internationalization, the results also showed that firms that operate in a larger geographical area than their competitors adapt to the most demanding environmental legislation, placing them in a position of environmental leadership in their respective sectors. The inclusion of internationalization as an indicator of strategic proactivity, the measurement of proactivity variables and the correction of firms'' specific unobserved aspects are some of this paper''s contributions

    Analysis of clinical samples from Doberman and Toy Poodle dogs with a targeted next-generation genotyping system

    Get PDF
    Next-generation sequencing (NGS) is a powerful tool to study DNA or RNA samples. New methods and protocols based on NGS have been developed to carry out the analysis of genetic variation for animal parentage testing, disease screening and trait detection. Targeted NGS is aimed at achieving targeted enrichment of genome subregions to reduced significantly the sequencing of genomic loci of interest, as well as costs and efforts, compared with whole-genome sequencing (WGS). We generated genotyping information of 387 targets from 95 clinical canine samples (76 Doberman and 19 Toy Poodle dogs) and 3 control samples using AgriSeq Targeted GBS. Based on these data, we calculated the exclusion power of 228 parentage markers with Cervus 3.0 software. Furthermore, we detected disease/trait markers presenting polymorphism and calculated their allele frequencies within each breed. In the case of parentage markers, the assigned parents showed a higher LOD score (>1.22 x1016), and the available pedigree data of offspring agreed with the assigned parent information. Interestingly, full siblings were also assigned like parents. On the other hand, we found 19 polymorphic disease/trait markers in the total sample, 3 of which (progressive rod-cone degeneration, von Willebrand disease 1 and dilated cardiomyopathy) were validated by pyrosequencing with 100% concordance. The mutant allele for cone-rod dystrophy3 (CRD3) was found in both groups, a variant which had not been reported in either breed to date. Sequencing of genomic loci of interest, costs and efforts can be reduced significantly with targeted NGS as compared with WGS. The AgriSeq Targeted GBS is a very good alternative for the massive genetic evaluation of animal populations.Fil: Arizmendi, Analía. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Hospital Escuela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; ArgentinaFil: Barrientos, Laura Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; ArgentinaFil: Crespi, Julian Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; ArgentinaFil: Rudd Garces, Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; ArgentinaFil: Giovambattista, Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; ArgentinaFil: Peral Garcia, Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; Argentina37th International Society of Animal Genetics (ISAG) ConferenceLleidaEspañaInternational Society of Animal Genetics (ISAG

    Amaurosis fugaz por aneurisma de arteria carótida oftálmico. A propósito de un caso.

    Get PDF
    Los aneurimas son lesiones vasculares que en la actualidad son muy conocidos, pero en atenciones pre hospitalarias pueden ser confundido por cefaleas tensionales o migrañosas incluso si viene acompañados de alteraciones visuales. Los aneurisma en la arteria oftalmicas son lesiones muy poco comunes, pero por su ubicación pueden poner en peligro la vida del paciente que lo padece ya que su origen del mismo presentan relaciones anatomicas con los nervios ópticos adyacentes y estructuras óseas de la base craneal y el seno cavernoso, así como las dificultades que se pueden presentar para clipar el cuello de estos aneurismas, preservando la integridad de la arteria madre, dan origen a complejidades técnicas muy especiales durante el tratamiento quirúrgico. A continuacion se trata del caso de una paciente de 58 años de sexo femenino referido de un hospital de portoviejo con cuadro clinico de cefalea de gran intensidad holocraneana con ademas de vertigo ademas de amaurosis fugaz izquierda

    Fractura de fémur atípicas por medicamentos bifosfonato. A propósito de un caso.

    Get PDF
    Los medicamentos de mayor línea de utilizacion en la osteoporosis son los bifosfonatos y dentro de nuestro pais el mayor medicamento utilizado en las instituciones hospitalarias del estado es el alendronato, se utilizan los bifosfonatos por su mecanismo de accion atirresortivos potentes y han demostrado su gran eficasia para reducir fracturas tanto vertebrales como no vertebrales, pero como todo medicamento presenta efectos secundarios, los mayormente mencionados son las fracturas de femur atipicas al mantener el tratamiento continuo mayor de 5 años. A continuacion se presenta un caso de una paciente de 57 años de edad que a mantenido tratamiento con alendronato por 10 años con supervision medica, con cuadro clinico de inicio de dolor en muslo izquierdo,  que presenta fractura cerrada de femur tipo III Según clasificacion de Winquist y Hansen de pierna izquierda al recibir un traumatismo leve en rodilla izquierda, que posteriormente  se complico con trombosis pulmonar bilateral

    Qualitative differences in the spatiotemporal brain states supporting configural face processing emerge in adolescence in autism

    Full text link
    BACKGROUND Studying the neural processing of faces can illuminate the mechanisms of compromised social expertise in autism. To resolve a longstanding debate, we examined whether differences in configural face processing in autism are underpinned by quantitative differences in the activation of typical face processing pathways, or the recruitment of non-typical neural systems. METHODS We investigated spatial and temporal characteristics of event-related EEG responses to upright and inverted faces in a large sample of children, adolescents, and adults with and without autism. We examined topographic analyses of variance and global field power to identify group differences in the spatial and temporal response to face inversion. We then examined how quasi-stable spatiotemporal profiles - microstates - are modulated by face orientation and diagnostic group. RESULTS Upright and inverted faces produced distinct profiles of topography and strength in the topographical analyses. These topographical profiles differed between diagnostic groups in adolescents, but not in children or adults. In the microstate analysis, the autistic group showed differences in the activation strength of normative microstates during early-stage processing at all ages, suggesting consistent quantitative differences in the operation of typical processing pathways; qualitative differences in microstate topographies during late-stage processing became prominent in adults, suggesting the increasing involvement of non-typical neural systems with processing time and over development. CONCLUSIONS These findings suggest that early difficulties with configural face processing may trigger later compensatory processes in autism that emerge in later development

    Orientaciones disciplinarias y enfoques metodológicos en la Investigación Educativa de la UAEM

    Get PDF
    Publicación derivada del primer congreso internacional de investigación educativa organizado por la red de cuerpos académicos en investigación educativa adscrito en la facultad de geografía de la UAEM.A tres años de su creación la REDCAIE de la UAEM, celebra organizando el Primer Congreso Internacional de Investigación Educativa (CIIE), haciendo participe a sus más de 100 integrantes para colaborar con las experiencias en la indagación del proceso educativo desde las diferentes orientaciones disciplinares y los enfoques metodológicos. Derivado del CIIE, se integra el presente libro electrónico con 27 capítulos integrados en seis apartados que nos presentan de forma particular la investigación educativa en; las ciencias naturales y exactas, las ciencias de la salud, en las tecnologías en la información y comunicación, en el Nivel Medio Superior, Formación y Práctica Docente, así como un anexo sobre las experiencias en la asesoría de tesis sobre investigación educativa. De esta forma, el presente documento, da cuenta de un primer acercamiento al objeto de estudio de los procesos académicos y las prácticas institucionales de la REDACIE de la UAEM, atendiendo su misión de generar trabajo colaborativo interdisciplinario, interinstitucional e intercultural como una vía para aportar conocimiento significativo y relevante para profesionalizar la docencia universitaria y orientar la repercusión favorable de sus resultados en el aprendizaje y enseñanza de las ciencias.Facultad de Geografía, RedCA, DECYD, IESU

    Quantitative oculomotor assessment in hereditary ataxia: systematic review and consensus by the ataxia global initiative working group on digital-motor biomarkers

    Get PDF
    Oculomotor deficits are common in hereditary ataxia, but disproportionally neglected in clinical ataxia scales and as outcome measures for interventional trials. Quantitative assessment of oculomotor function has become increasingly available and thus applicable in multicenter trials and offers the opportunity to capture severity and progression of oculomotor impairment in a sensitive and reliable manner. In this consensus paper of the Ataxia Global Initiative Working Group On Digital Oculomotor Biomarkers, based on a systematic literature review, we propose harmonized methodology and measurement parameters for the quantitative assessment of oculomotor function in natural-history studies and clinical trials in hereditary ataxia. MEDLINE was searched for articles reporting on oculomotor/vestibular properties in ataxia patients and a study-tailored quality-assessment was performed. One-hundred-and-seventeen articles reporting on subjects with genetically confirmed (n=1134) or suspected hereditary ataxia (n=198), and degenerative ataxias with sporadic presentation (n=480) were included and subject to data extraction. Based on robust discrimination from controls, correlation with disease-severity, sensitivity to change, and feasibility in international multicenter settings as prerequisite for clinical trials, we prioritize a core-set of five eye-movement types: (i) pursuit eye movements, (ii) saccadic eye movements, (iii) fixation, (iv) eccentric gaze holding, and (v) rotational vestibulo-ocular reflex. We provide detailed guidelines for their acquisition, and recommendations on the quantitative parameters to extract. Limitations include low study quality, heterogeneity in patient populations, and lack of longitudinal studies. Standardization of quantitative oculomotor assessments will facilitate their implementation, interpretation, and validation in clinical trials, and ultimately advance our understanding of the evolution of oculomotor network dysfunction in hereditary ataxias

    Mild cognitive impairment subtypes: An MEG study

    Get PDF
    Previous studies of the dementia continuum have characterized the early disruption of the brain oscillatory activity at the stage of Mild cognitive impairment (MCI). Reduction in power in posterior regions in the alpha band has been one of the landmarks of the Alzheimer Disease accompanied by the anteriorization of the theta band power. However, little is known about the neurophysiological differences between single and multidomain MCI patients.Our goal is to study the differences in oscillatory magnetic activity between amnestic single and multidomain MCI. This will allow us to test whether the effect of the impairment in a single cognitive domain or in a more widespread functional impairment can be reflected in specific neurophysiological profiles
    corecore