Suchergebnisse

Feeding habits of common dolphinfish (Coryphaena hippurus) were investigated in the Southeast Pacific Ocean using stomach content analysis. Stomachs were collected from 1506 individuals ranging between 18 and 187 cm in fork length. The fish were caught by longliner boats in 2009-2017. Based on percentage of wet weight (%W-i), percentage of number (%N-i), and frequency of occurrence (%O-i), flyingfishes were the predominant prey, followed by the cephalopods jumbo squid (Dosidicus gigas) and argonaut (Argonauta spp.). Permutational multivariate analysis of variance (PERMANOVA) detected significant differences between zones (p = 110 cm), DR decreased from 13.0 +/- 22.1 to 3.7 +/- 0.7 BM day(-1). The present results contribute to improve the understanding of dolphinfish feeding habits in the Southeast Pacific Ocean. ; Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This research was funded by the Andalusian Government (P12-RNM733, FEDER-UCA18-107069), CEI center dot MAR Foundation (CEIJ19C02.1), and Spanish Ministry of Economy, Industry and Competitiveness (CTM2017-82808-R, AEI/FEDER, EU).

PurposeThe purpose of this paper is to deepen the knowledge about the role of human resources in a lean environment and its impact on operational performance.Design/methodology/approachFor this reason, present work investigates the influence of workforce development on the relationship between lean production and operational performance. To test the hypotheses of the paper, a questionnaire was developed and tested on a sample of first tier suppliers in the Spanish automotive industry.FindingsResults highlight the indispensable role of workforce development in the implementation phase of lean production and draw upon the insight that advancements in implementation of lean production correspond to an increase in knowledgeable employees which in turn facilitates the attainment of improved operational performance outcomes.Originality/valueThe research reaffirm that lean is an integrated socio-technical system oriented to efficiency.

La cultura de la legalidad ha sido un tema muy difundido en México durante las últimas décadas con el propósito de que los destinatarios de las normas conozcan el funcionamiento del sistema legal. En el ámbito de la Educación Superior, es fundamental que el estudiante conozca sus derechos, obligaciones y en específico, considere la cultura de la legalidad como principio básico de su formación académica en vinculación con la promoción y pleno respeto a los derechos humanos. Por esa razón, en el presente estudio nos importa destacar particularmente, la cultura de la legalidad y derechos humanos, como nuevo rumbo de la Educación Superior en México.

PurposeThe purpose of this paper is to analyse the relationships between the different dimensions of supply chain integration (SCI). First, the sequence in which these dimensions should be implemented and some possible mediating effects are investigated. Then, relationships are examined more closely to observe whether they present more complex non-linear forms than those usually analysed.Design/methodology/approachRequired information was gathered from a sample of 477 Spanish industrial companies (23.4 per cent response rate). PLS structural equation modelling was applied to capture non-linear relationships between SCI dimensions.FindingsThe results indicate that internal integration leads to external integration and that within external integration, information flow integration provides the basis for financial flow integration and physical flow integration. Thus, the results suggest the existence of a logical sequence to achieve SCI. In addition, clearly different non-linear relationships are observed between the analysed variables.Practical implicationsIt seems that a sufficient minimum value has to be reached for internal integration to have a positive effect on external information and financial integration. In addition, a higher degree of information integration appears to facilitate financial and physical integration, although a medium degree of information integration results in a lower degree of financial integration. Therefore, managers should not expect that efforts made to increase one integration dimension will always produce the same effect on the other dimensions.Originality/valueAn empirical contribution is made to knowledge of the logical SCI sequence. This contribution is not only important for academia, but also for managers seeking to improve supply chain performance through integration.

Building a public agenda on security and peace involves the analysis of the media as transmitters of issues concerning major events such as the case of 43 students missing in Ayotzinapa. The present study aimed to analyze the systematic dissemination of newspapers with regard to care for victims and their frames, considering three approaches: conservatism, liberalism and progressivism. A documentary, exploratory and retrospective study with a probabilistic selection of 261 notes national press was held. content analysis was performed and the frequencies of systematic dissemination settled. The results show that the newspaper La Jornada made a close approach to the progressive spread most often the action of organized groups of civil society regarding the care of victims as opposed to institutional or governmental action frame. Referring to the literature reviewed is drawn to the emergence of civil spheres in the governance process of public safety. ; La construcción de una agenda pública en materia de seguridad y pacificación supone el análisis de los medios de comunicación como emisores de temas concernientes a hechos de gran envergadura como el caso de los 43 estudiantes desaparecidos en Ayotzinapa. El presente trabajo se propuso analizar la difusión sistemática de los periódicos con respecto a la atención a víctimas y sus encuadres, considerando tres enfoques: conservadurismo, liberalismo y progresismo. Se llevó a cabo un estudio documental, exploratorio y retrospectivo con una selección no probabilística de 261 notas de prensa de circulación nacional. Se realizó un análisis de su contenido y se establecieron las frecuencias de difusión sistemática. Los resultados muestran que el periódico La Jornada realizó un encuadre cercano al enfoque progresista al difundir con mayor frecuencia la acción de grupos organizados de la sociedad civil respecto a la atención a víctimas en contraste con la acción institucional o gubernamental. En referencia a la literatura revisada se advierte sobre la emergencia de esferas ...

RECSI 2010. XI Reunión Española sobre Criptología y Seguridad de la Información, Universitat Rovira i Virgili, Tarragona, España, 7-10 Septiembre 2010 ; El incumplimiento de las leyes origina la imposición de sanciones. Una buena gestión de las sanciones se convierte en un factor clave para que éstas sean eficaces. Por este motivo, se han producido impulsos legislativos que persiguen el desarrollo electrónico de los procedimientos. No obstante, hasta el momento no se ha propuesto la realización electrónica del procedimiento sancionador completo en el ámbito del control del tráfico vehicular. En este trabajo se propone un modelo para la implantación del procedimiento sancionador electrónico en dicho contexto, mejorando la capacidad de participación de los ciudadanos interesados en el mismo. Particularmente y por las implicaciones legales del procedimiento, se abordan en detalle los aspectos de seguridad necesarios. ; Este trabajo ha sido parcialmente financiado por el Ministerio de Ciencia e Innovación (España), dentro del Plan Nac. de Investigación Científica, Desarrollo e Innovación Tecnológica 2008-2011, contrato TIN2009-13461 (proy. E-SAVE). ; Publicado

PurposeThe purpose of this paper is to empirically examine the impact of the level of cooperation in the supply chain on lean production (LP) adoption. The effect of the level of cooperation with both suppliers and customers with regards to the intensity of LP adoption is examined, as is the joint effect of cooperation and information integration with customers.Design/methodology/approachAnalysis is carried out on a sample of 84 manufacturing plants that are first tier suppliers to original equipment manufacturers in the Spanish automotive industry. Data were gathered from plant CEOs via a combination of regular mail, e‐mail and internet‐based survey methods. Data are analyzed using exploratory factor analysis and hierarchical regression.FindingsThe results show that while greater levels of cooperation with suppliers do not impact on the intensity of LP adoption, greater levels of cooperation with customers do have a significant effect. Also, the greater the cooperation with customers and the more information integrated with them, the higher the intensity of LP adoption.Research limitations/implicationsThe findings stress the importance of having a holistic vision of the supply chain to explain the degree of LP adoption. Further developments include simultaneously studying the role of both information and physical flows along the supply chain in LP adoption, and analyzing the time lag that occurs between a company increasing cooperation with suppliers and customers, and progress being made in the intensity of LP adoption.Practical implicationsPractitioners must be mindful that a greater level of cooperation with customers creates a favourable environment for increasing the intensity of adoption of LP.Originality/valueThis paper contributes to research on the explanatory factors of LP adoption by adding new factors to explain it, including the level of cooperation between supply chain agents and the interaction of information integration and cooperation with customers.

In this study, the authors examined late atretic follicles in the ovaries of Atlantic bluefin tuna, Thunnus thynnus (Linn AE us 1758), at different times of the year using transmitted light and epifluorescence microscopy. Atresia (degeneration and resorption of developing ovarian follicles) is a natural process involved in fecundity downregulation in teleosts and is substantially enhanced in stressful conditions. Early (alpha and beta) atretic stages of yolked oocytes have a relatively short duration in seasonally reproducing species, whereas later (gamma and delta) atretic follicles (LAF) persist for longer time in the ovary, serving as a sign of previous vitellogenic activity. LAF can thus be used as reliable markers of maturity during non-reproductive periods. Lipofuscin granules accumulate in the cytoplasm of LAF cells as a result of lysosomal digestion of oocyte components. Taking advantage of the well-known autofluorescent properties of lipofuscins, LAF may be identified in unstained histological sections under fluorescence microscopy using appropriate excitation and emission wavelengths. The authors explore in this study the applicability of fluorescence microscopy to provide a fast and effective method to assess late atresia in fishes. This method may be particularly useful to determine sexual maturity in individuals sampled long after the spawning season, where LAF are difficult to detect in standard histological sections. Furthermore, LAF autofluorescence provides a rapid way to quantify late atresia in fishes using image analysis. ; This research was partly funded by the CEI MAR Foundation (project #CEIJ19-C02.1), the Spanish Ministry of Economy and Competitiveness (project #CTM2017-82808-R) and the Andalusian Government (P12-RNM733, FEDER UCA18-107069).

La presente investigación tiene como propósito elaborar un sistema de actividades docentes dirigida a la comunicación matemática en enseñanza de la Geometría, en la misma se advierte sobre la necesidad e importancia de la temática en el contexto universitario, la dirección del trabajo metodológico es una vía importante para elevar el nivel científico y profesional de los docentes y principalmente la preparación de los estudiantes. En este sentido existen dificultades que están afectando el aprendizaje de los estudiantes, y por ende la investigación tiene como objetivo contribuir a mejorar la comunicación matemática en enseñanza de la geometría en los alumnos del 1er año del centro universitario municipal del municipio de guáimaro. Para ello se emplearon diferentes métodos teóricos como el histórico y lógico, análisis y síntesis, inducción deducción, los empíricos como las entrevistas, encuestas, y métodos estadísticos, con los cuales se determinó que el nivel de comunicación matemática en enseñanza de la geometría es insuficiente. Con la aplicación del sistema de actividades docentes, se comprobó la transformación y se concluyó que aporta valiosos resultados hacia una dirección efectiva del trabajo metodológico en comunicación matemática y favorece el logro del objetivo y fin de nuestra universidad.

PurposeThe purpose of this paper is to explore and disseminate knowledge about quantum-inspired computing technology's potential to solve complex challenges faced by the operational agility capability in Industry 4.0 manufacturing and logistics operations.Design/methodology/approachA multi-case study approach is used to determine the impact of quantum-inspired computing technology in manufacturing and logistics processes from the supplier perspective. A literature review provides the basis for a framework to identify a set of flexibility and agility operational capabilities enabled by Industry 4.0 Information and Digital Technologies. The use cases are analyzed in depth, first individually and then jointly.FindingsStudy results suggest that quantum-inspired computing technology has the potential to harness and boost companies' operational flexibility to enhance operational agility in manufacturing and logistics operations management, particularly in the Industry 4.0 context. An exploratory model is proposed to explain the relationships between quantum-inspired computing technology and the deployment of operational agility capabilities.Originality/valueThis is study explores the use of quantum-inspired computing technology in Industry 4.0 operations management and contributes to understanding its potential to enable operational agility capability in manufacturing and logistics operations.

In a context characterized by increasing competitive pressure, supply chain collaboration has gained greater relevance and lean principles have been integrated into supply chain management to address the challenge of achieving better organizational performance. The purpose of this study is to understand the roles of strategic supplier performance and competitive intensity in Lean Supply Chain Management (LSCM) implementation and its performance. We use a variance-based Structural Equation Model analysis with empirical data from a sample of 273 Spanish companies to analyze the relationships among strategic suppliers, competitive intensity, LSCM implementation, and performance. Our findings indicate that strategic supplier performance is positively associated with LSCM implementation and that this relationship is heightened in highly competitive industries. Our results also reveal the indirect association of LSCM implementation in the strategic supplier performance-organizational performance relationship. JEL CLASSIFICATION: M11