Southern Hemisphere Westerly Winds have modulated the formation of laminations in sediments in Lago Fagnano (Tierra del Fuego, Argentina) over the past 6.3 ka

Tierra del Fuego in Argentina is a unique location to examine past Holocene wind variability since it intersects the core of the Southern Hemisphere Westerly Winds (SHWW). The SHWW are the most powerful prevailing winds on Earth. Their variation plays a role in regulating atmospheric CO2 levels and rainfall amounts and distribution, both today and in the past. We obtained a piston core (LF06-PC8) from Bahia Grande, a protected sub-basin at the southern margin of Lago Fagnano, the largest lake in Tierra del Fuego. This article focuses on the uppermost 185 cm of this core, corresponding to laminated sediment from the last similar to 6.3 ka. Laminations consist of millimetre-scale paired dark and light layers. Previous studies and new geochemical analysis show that the dark and light layers are characterized by differing concentrations of Mn and Fe. We attribute the distribution of Mn and Fe to episodic hypolimnic oxic-anoxic variations. The age model suggests an approximately bidecadal timescale for the formation of each layer pair. We propose a new model of these redox changes with the SHWW variations. The most likely phenomenon to produce complete water-column mixing is thermobaric instability, which occurs in colder winters with low-intensity SHWW (El Nino-like conditions). In contrast, windier winters are characterized by higher temperatures and reduced mixing in the water column, facilitating a decline in oxygen concentration. Laminations, and the inferred presence of periodic hypolimnion redox changes, are common features of the past similar to 6.3 ka. Geochemical proxy variability is compatible with an intensification of El Nino/Southern Oscillation activity during the past similar to 2 ka.Beatriu de Pinos postdoctoral programme at Agencia de Gestio Academica i Universitaria at Generalitat de CatalunyaNational Science Foundation (NSF) ATM-0408668 EAR-1103550Spanish Government CTM2017-89711-C2-1-PEuropean Union through FEDER fundsSpanish Government RYC2015-1896

Holocene geochemical footprint from Semiarid alpine wetlands in southern Spain

Here we provide the geochemical dataset that our research group has collected after 10 years of investigation in the Sierra Nevada National Park in southern Spain. These data come from Holocene sedimentary records from four alpine sites (ranging from ∼2500 to ∼3000 masl): two peatlands and two shallow lakes. Different kinds of organic and inorganic analyses have been conducted. The organic matter in the bulk sediment was characterised using elemental measurements and isotope-ratio mass spectrometry (EA-IRMS). Leaf waxes in the sediment were investigated by means of chromatography with flame-ionization detection and mass spectrometry (GC-FID, GC-MS). Major, minor and trace elements of the sediments were analysed with atomic absorption (AAS), inductively coupled plasma mass spectrometry (ICP-MS), as well as X-ray scanning fluorescence. These data can be reused by environmental researchers and soil and land managers of the Sierra Nevada National Park and similar regions to identify the effect of natural climate change, overprinted by human impact, as well as to project new management policies in similar protected areas.Universidad de Granada. Departamento de Estratigrafía y PaleontologíaJunta de Andalucía: Grupos de investigación RNM190 y RNM309Junta de Andalucía: Proyecto P11-RNM-7332España, Ministerio de Economía y Competitividad: Proyecto CGL2013-47038-RRamón y Cajal Fellowship: RYC-2015-18966Small Research Grant by the Carnegie Trust for the Universities of ScotlandMarie Curie Intra-European Fellowship of the 7th Framework Programme for Research, Technological Development and Demonstration of the European Commission: NAOSIPUK. Grant Number: PIEF-GA-2012-62302

Knowledge management: a strategy to generate competitive advantage in organizations

The trend towards a society differentiated by an economic and social structure whose wealth generation system is based on knowledge marks the break with the so-called industrial society. Organizations operate in an environment of change and uncertainty and are forced to discover new ways of doing administrative management. Therefore, this article analyzes the role of knowledge in organizations and its management as a strategy for achieving competitive advantage. This work has a reflective nature and was built from the literature review available in academia. The results show that efficient administration of knowledge involves the combination of four factors: human capital, communication, technology, and innovation, and generates high levels of organizational growth, continuous improvement, competitive advantage, and survival in the market.La tendencia hacia una sociedad diferenciada por una estructura económica y social cuyo sistema de generación de riqueza se basa en el conocimiento marca la ruptura con la denominada sociedad industrial. Las organizaciones operan en un entorno de cambio e incertidumbre y se ven obligadas a descubrir nuevas formas de hacer la gestión administrativa. Por ello, este artículo analiza el papel del conocimiento en las organizaciones y su gestión como estrategia para lograr una ventaja competitiva. Este trabajo tiene un carácter reflexivo y fue construido a partir de la revisión bibliográfica disponible en la academia. Los resultados muestran que la administración eficiente del conocimiento involucra la combinación de cuatro factores: capital humano, comunicación, tecnología e innovación, y genera altos niveles de crecimiento organizacional, mejora continua, ventaja competitiva y supervivencia en el mercado

Towards a framework for inter-enterprise architecture to boost collaborative networks

A complete Inter-Enterprise Architecture should be conformed to a framework, a methodology and a modelling language. In this sense, this paper proposes an initial Framework for Inter-Enterprise Architecture (FIEA), which organizes, stores, classifies and communicates in a conceptual level the elements of the Inter-Enterprise Architecture (IEA) and their relationships, ensuring their consistency and integrity. This FIEA provides a clear picture about the elements and perspectives that make up the collaborative network and their inter-relationships, supported for technology base on the Internet for its inter-operation.This research has been carried out for the project “Sistema de ayuda a la toma de decisiones ante decisiones no programadas en la planificación jerárquica de la producción (ADENPRO-PJP)” Ref. SP20120703 Universitat Politècnica de València.Vargas, A.; Boza García, A.; Cuenca, L.; Ortiz Bas, Á. (2013). Towards a framework for inter-enterprise architecture to boost collaborative networks. En On the Move to Meaningful Internet Systems: OTM 2013 Workshop. Springer Verlag (Germany). 179-188. https://doi.org/10.1007/978-3-642-41033-8_26S179188Cuenca, L., Boza, A., Ortiz, A.: Enterprise Architecture Framework with Early Business/ICT Alignment for Extended Enterprises. In: Ortiz, Á., Franco, R.D., Gasquet, P.G. (eds.) BASYS 2010. IFIP AICT, vol. 322, pp. 11–18. Springer, Heidelberg (2010a)Vargas, A., Boza, A., Cuenca, L., Sacala, I.: Inter-Enterprise Architecture and Internet of the Future. In: Camarinha-Matos, L.M., Tomic, S., Graça, P. (eds.) DoCEIS 2013. IFIP AICT, vol. 394, pp. 25–32. Springer, Heidelberg (2013)Camarinha-Matos, L., Afsarmanesh, H.: Collaborative networks: Reference Modeling. Media, Springer Science + Business (2008)European Commission European Society and Media: Dygital Business Ecosystems. Office for Official Publications of the European Communities, Luxembourg (2007)Future Internet Enterprise Systems (FInES) Cluster: FInES Research Roadmap 2025, http://cordis.europa.eu/Vargas, A., Boza, A., Cuenca, L., Ortiz, A.: The importance of strategic alignment in enterprise collaboration. In: Prado-Prado, J.C. (ed.) Annals of Industrial Engineering 2012, pp. 1–8. Springer, London (2013)Henderson, J., Venkatraman, N.: Strategic alignment: Leveraging information technology for transforming organizations. IBM Systems Journal 32(1), 472–484 (1993)Vargas, A., Boza, A., Cuenca, L.: Lograr la alineación estratégica de negocio y las tecnologías de la información a través de Arquitecturas Empresariales: Revisión de la Literatura. In: XV Congreso de Ingeniería de Organización, Cartagena-España, pp. 1061–1070 (2011a)ISO 15704: Industrial automation systems - Requirements for enterprise-reference architectures and methodologies (2000)Kosanke, K.: CIMOSA Primer on key concepts, purpose and business value. CIMOSA Association, http://cimosa.cnt.pl/Cuenca, L., Boza, A., Ortiz, A.: An enterprise engineering approach for the alignment of business and information technology strategy. International Journal of Computer Integrated Manufacturing 24(11), 974–992 (2011)Vernadat, F.: Enterprise modelling and integration: From fact modelling to Enterprise Interoperability (2003)Vargas, A., Boza, A., Cuenca, L.: Towards Interoperability Through Inter-Enterprise Collaboration Architectures. In: Meersman, R., Dillon, T., Herrero, P. (eds.) OTM-WS 2011. LNCS, vol. 7046, pp. 102–111. Springer, Heidelberg (2011)Plaza, J., Burgos, J., Carmona, E.: Measuring Stakeholder Integration: Knowledge, Interaction and Adaptational Behavior Dimensions. Journal of Business Ethics 93, 419–442 (2010)Camarinha-Matos, L.M., Afsarmanesh, H.: Collaborative networks: A new scientific discipline, pp. 439–452 (2005)Afsarmanesh, H., Msanjila, S.: Inter-organizational trust in VBEs. In: Camarinha-Matos, L.M., Afsarmanesh, H., Ollus, M. (eds.) Methods and Tools for Collaborative Networked Organizations. Springer (2008)Mehandjiev, N., Grefen, P.: Dynamic business process formation for instant virtual enterprises, London (2010)Kosanke, K., Vernadat, F., Zelm, M.: CIMOSA: enterprise engineering and integration. Computers in Industry 40, 83–97 (1999)Chen, D., Vallespir, B., Doumeingts, G.: GRAI integrated methodology and its mapping onto generic enterprise reference architecture and methodology. Computers in Industry 33, 387–394 (1997)IFIP: GERAM: Generalised Enterprise Reference Architecture and Methodology. In: International Federation for Information Processing, http://dl.ifip.org/index.php/index/indexOrtiz, A., Lario, F., Ros, L.: Enterprise Integration—Business Processes Integrated Management: a proposal for a methodology to develop Enterprise Integration Programs. Computers in Industry 40, 155–171 (1999)Cuenca, L., Ortiz, A., Boza, A.: Business and IS/IT strategic alignment framework. In: Camarinha-Matos, L.M., Pereira, P., Ribeiro, L. (eds.) DoCEIS 2010. IFIP AICT, vol. 314, pp. 24–31. Springer, Heidelberg (2010b)THE OPEN GROUP: TOGAF, http://www.opengroup.org/togaf/Vesterager, J., T{\o}lle, M., Bernus, P.: VERA: Virtual Enterprise Reference Architecture. In: GMNBook, GLOBEMEN Final Plenary (2002)Chalmeta, R., Grangel, R.: ARDIN extension for virtual enterprise integration. The Journal of Systems and Software 67 (2003

Creencias y prácticas de los padres de familia y profesores de pre- jardín de un colegio al Norte de Bogotá sobre la relación familia-escuela

123 páginasLa familia y la escuela son las dos instituciones educativas más importantes en la vida de los niños las cuales les posibilita formarse como ciudadanos y en las cuales el niño forma y configura su desarrollo socio- emocional, cognitivo y motor (De León 2011). Si bien es cierto que esta relación es una realidad que toma especial importancia en el desarrollo integral infantil, las creencias y prácticas de los padres de familia, especialmente a nivel prejardín, continúa siendo un área de bastante interés por parte de muchos pedagogos y psicólogos. Teniendo en cuenta este interés, esta investigación busca identificar las creencias que construyen los padres de familia y profesores en su realidad, sobre la influencia de la relación familia – escuela en el desarrollo del niño. El estudio siguió los pasos de una investigación cualitativa, donde por medio de estudios focales y un cuestionario se buscó conocer las creencias de los padres de familia en diferentes ámbitos. En el análisis de resultados se utilizaron códigos abiertos, los cuales revelaron frecuencia y patrones dentro de las preguntas. Los hallazgos sugieren la importancia de seis aspectos relevantes: familia, relación familia- escuela, participación, reuniones, actividades extraescolares y formación de padres. De igual manera se evidencia que los padres y profesores parten de la misma creencia sobre la importancia de la comunicación familia-escuela en el desarrollo de los niños.Maestría en Desarrollo InfantilMagíster en Desarrollo Infanti

Paleohydrological dynamics in the Western Mediterranean during the last glacial cycle

This study was supported by the project B-RNM-144-UGR18 of the action "Proyectos I+D+i del Programa Operativo FEDER 2018 -Junta de Andalucia-UGR", the projects CGL2013-47038-R and CGL201785415-R, of the "Ministerio de Economia y Competitividad of Spain and Fondo Europeo de Desarrollo Regional FEDER", and the research group RNM-190 (Junta de Andalucia). A.G.-A. was also supported by a Marie Curie Intra-European Fellowship of the 7th Framework Programme for Research, Technological Development and Demonstration of the European Commission (NAOSIPUK. Grant Number: PIEF-GA-2012-623027) and by a Ram ' on y Cajal Fellowship RYC-2015-18966 of the Spanish Government (Ministerio de Economia y Competividad). J.C. acknowledges the postdoctoral funding provided by the Academy of Finland (project number 316702). J.L.T. hosted the NAOSIPUK project (PIEFGA-2012-623027) at the University of Glasgow. A.L.-A PhD is funded by BES-2018-084293 (Ministerio de Economia y Competividad). M.J.R.R. acknowledges the postdoctoral funding by the European Research Council (ERC-2017-ADG-788616). This study was supported by an ERC Consolidator Grant (STEEPclim) to D.S. (Grant Agreement No. 647035). E.S. is supported by the DFG Cluster of Excellence 2077 >The Ocean Floor -Earth's Uncharted Interface < at MARUM. We thank Ralph Kreutz for analytical support.The transitional regions between the low and high latitudes of the Northern Hemisphere are highly vulnerable to future climate change yet most of the current climate models usually diverge in their projections. To better understand the dynamics in these regions, the reconstruction of past hydrological fluctuations and precipitation patterns is of paramount importance to accurately constrain present and future climate scenarios. In this study, we investigated paleohydrological dynamics in the western Mediterranean region, a transitional zone between low-mid latitudes and Atlantic - Mediterranean realms. We reconstruct precipitation and moisture source changes during the last -35 ka in order to propose the potential mechanisms driving these oscillations. To do so, we use hydrogen isotopes from sedimentary leaf waxes, more specifically the C31 n-alkane homologue, and a precipitation proxy based on previously published pollen data from a sedimentary core (Padul-15-05) in southern Iberia (Padul wetland -37-N). With this combination we disentangle the coupled effect of precipitation amount and source on the hydrogen isotopic signature of the studied C31 n-alkane record. Our results show three main periods characterized by different precipitation patterns. Low precipitation, mainly linked to a significant contribution from an isotopically-enriched Mediterranean precipitation source, occurred from -30 to -15.5 ka BP and during the last -5 ka, whereas enhanced precipitation with a predominant isotopically-depleted Atlantic precipitation source prevailed from -15.5 to -5 ka BP. This latter stage is here defined as the Western Mediterranean Humid Period (WMHP). In addition, some occasional millennial-scale opposite precipitation patterns can be observed during these climatically distinct periods. These changes in the source of precipitation were likely coupled to a shift in the main rainy season from winter, when Atlantic precipitation prevailed, to late winter-early spring, when the contribution of Mediterranean moisture is higher. Comparison between the studied mid-latitude terrestrial Padul-15-05 core and a low-latitude marine record offshore of northwestern Africa shows clear long-term synchronous responses of both western Mediterranean precipitation and western African monsoon systems to northern Hemisphere atmospheric dynamics, ultimately controlled by orbital forcing and ice-sheets fluctuations.action "Proyectos I+D+i del Programa Operativo FEDER 2018 -Junta de Andalucia-UGR" B-RNM-144-UGR18Ministerio de Economia y Competitividad of Spain CGL2013-47038-R CGL201785415-RJunta de Andalucia RNM-190Marie Curie Intra-European Fellowship of the 7th Framework Programme for Research, Technological Development and Demonstration of the European Commission (NAOSIPUK) PIEF-GA-2012-623027Spanish Government (Ministerio de Economia y Competividad) RYC-2015-18966Academy of FinlandEuropean Commission 316702NAOSIPUK project at the University of Glasgow PIEFGA-2012-623027Ministerio de Economia y Competividad BES-2018-084293European Research Council (ERC)European Commission ERC-2017-ADG-788616ERC Consolidator Grant (STEEPclim) 647035DFG Cluster of Excellence 2077 >The Ocean Floor -Earth's Uncharted Interface < at MARUMEuropean Commissio

Climatic control on the Holocene hydrology of a playa-lake system in the western Mediterranean

This study was supported by the action "Proyectos I + D + i del Programa Operativo FEDER 2018-Junta de Andalucia-UGR"& nbsp;[grant number B-RNM-144-UGR] , the Spanish Government (Ministerio de Economia y Competividad) and the European Regional Development Fund (ERDF-FEDER) [grant numbers CGL2013-47038-R and CGL2017- 85415-R] , and the Junta de Andalusia [grant numbers P18-RT-871 and Retos P20_00059, and research group RNM-190] . A.G.-A. was supported by a Ramon y Cajal Fellowship RYC of the Spanish Government (Ministerio de Economia y Competividad) [grant number 2015-18966] . A.L.-A PhD was funded by a fellowship of the Spanish Government (Ministerio de Economia y Competividad) [grant number BES-2018-084293] . F.G was financially supported by a Ramon y Cajal Fellowship (RYC2020-029811-I) of the Spanish Government (Ministerio de Economia y Competividad) . The Open Access Publication Charge was funded by the University of Granada/CBUA.Evaporitic lakes such as playa-lakes are characteristic of many arid regions and are unique environments with respect to fauna and flora, while being very vulnerable to climate and environmental fluctuations and threatened by the current global change scenario. Water balance oscillations in these systems can trigger the precipitation or dissolution of different evaporitic minerals, negatively impacting local biodiversity and economic activities. Here, we study the sedimentary record of a small saline pond from a playa-lake complex in southwestern Iberia in order to reconstruct the paleohydrological evolution of this area and assess potential anthropogenic disturbances. The different proxies studied in the ~11.9 ky old sedimentary record of the Laguna de la Ballestera suggest that the greatest lake extension and the highest water levels occurred during the Early Holocene, pointing to the wettest period of the record. Climate transitioned towards more arid conditions during the Middle Holocene, and even more dramatically during the Late Holocene. In this last stage the wetland surface and the water level largely diminished and gypsum precipitation gradually increased pointing towards a negative precipitation/ evapotranspiration balance and lowest water levels. Summer desiccation likely occurred under this scenario, especially after ~1.0–0.9 cal ky BP coeval with the Medieval Climate Anomaly, when gypsum content started to rise abruptly. However, this significant gypsum precipitation was only associated with a massive drop in the siliciclastic content and scarce carbonates (dolomite and calcite) during the last ~400 years. This evidence suggests a shift from a (semi) permanent to a temporal/seasonal hydrological regime. The environmental evolution of this wetland responded to the general climatic evolution of the western Mediterranean during the Holocene, being mostly controlled by changes in insolation. Our data also show that the environmental response of the studied wetland to natural climate variations was only significantly disturbed by human activities since the 20th century, especially in the second half of the century, deduced by abrupt fluctuations in the siliciclastic, gypsum and organic content in the sediments, as well as by the enhanced sedimentary accumulation rates, probably as a response to changes in the hydroperiod of the lake and in the catchment land use.Spanish Government B-RNM-144-UGRProyectos I + D + i del Programa Operativo FEDER 2018-Junta de Andalucia-UGR B-RNM-144-UGRSpanish Government RNM-190European Commission B-RNM-144-UGR BES-2018-084293Junta de Andalusia CGL2013-47038-R CGL2017- 85415-R P18-RT-871Ramon y Cajal Fellowship RYC of the Spanish Government (Ministerio de Economia y Competividad) Retos P20_00059 2015-18966University of Granada/CBUA RYC 2020-029811-