Thermal phase transitions for Dicke-type models in the ultra-strong coupling limit

We consider the Dicke model in the ultra-strong coupling limit to investigate thermal phase transitions and their precursors at finite particle numbers $N$ for bosonic and fermionic systems. We derive partition functions with degeneracy factors that account for the number of configurations and derive explicit expressions for the Landau free energy. This allows us to discuss the difference between the original Dicke (fermionic) and the bosonic case. We find a crossover between these two cases that shows up, e.g., in the specific heat.Comment: 4 pages Brief Report styl

A detailed stream sediment Geochemical survey in the Canoves St. Pere de Vilamajor area (Montseny massif. NE Spain)

Se ha realizado una prospección geoquímica táctica de sedimentos aluviales en el Brea de Cánoves-St. Pere de Vilamajor (Macizo del Montseny, Barcelona), como consecuencia de una exploración geoquimica estratégica de sedimentos aluviales previa, en la que se localizó un Brea anómala en Pb, Zn, Cu, As, Cd, Ni, y Co. El Brea estudiada tiene 35 km2 y esta constituida por materiales sedimentarios y volcánicos del Paleozoica, metamorfizados en mayor o menor grado e intruidos por el granito de Vallfornés, y materiales detríticos terciarios. Las muestras, recogidas con una densidad de 7 por Km2 fueron, an alizadas mediante espectrofotometria de absorción atómica para el Pb, Zn, Cu, Ni, Co, As, Cd y Ag, con analisis adicionales para el Sn y W con fluorescencia de rayos X. La interpretación estadistica de los resultados mediante técnicas univariables y multivariables permitió localizar y delimitar los sectores mas anórnalos. Posteriores reconocimientos geológicos de detalle permitieron descubrir un nuevo tipo de mineralización estratiforme relacionado con los niveles volcano-sedimentarios del Ordovícico superior hasta el momento desconocido en las Cadenas Costero Catalanas, asi como sus removilizaciones debido al emplazamiento del granito de Vallfornés, que originaron mineralizaciones de tipo skarn y filonianas

APOYO SOCIAL PERCIBIDO Y RESILIENCIA EN ADOLESCENTES EMBARAZADAS DE CENTROS DE SALUD DE VILLA EL SALVADOR

Con el objetivo de determinar si existe relación entre el apoyo social percibido y la resiliencia, se realizó un estudio no experimental, transversal y correlacional en una muestra de 100 adolescentes embarazadas de 14 a 17 años que asistían a tres centros de salud de Villa El Salvador. Se utilizaron como instrumentos el Cuestionario MOS de Apoyo Social Percibido de Sherbourne y Stewart, adaptado por Alva (2016) y la Escala de Resiliencia de Wagnild y Young. Entre los resultados se halló que existe una correlación altamente significativa, de tipo directa y nivel bajo entre las variables (rho=,334; p<0.05). Asimismo, se encontraron correlaciones significativas y altamente significativas, de tipo directas y de nivel bajo entre siete de las quince correlaciones entre las dimensiones del apoyo social percibido y la resiliencia

Phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in InSb quantum dots

We calculate the spin relaxation rates in a parabolic InSb quantum dots due to the spin interaction with acoustical phonons. We considered the deformation potential mechanism as the dominant electron-phonon coupling in the Pavlov-Firsov spin-phonon Hamiltonian. By studying suitable choices of magnetic field and lateral dot size, we determine regions where the spin relaxation rates can be practically suppressed. We analyze the behavior of the spin relaxation rates as a function of an external magnetic field and mean quantum dot radius. Effects of the spin admixture due to Dresselhaus contribution to spin-orbit interaction are also discussed.Comment: 5 page, 2 figures, accepted in Phonons 2007 proceeding

Empirical study of the business growth strategy related to the added value by intellectual capital

[EN] Four consecutive years of more than a thousand Spanish companies from different economic sectors are analyzed to determine the influence of intellectual capital on the business growth strategy. One of the purposes of this work is to establish a classification criterion of the strategic behaviour of a company linked to the growth of three factors: the demand of the sector, the sales of the company and the financial sustainability of the company. Another purpose is to develop and validate an appropriate classification of where the value added by human intellectual capital is structurally concentrated and used according to the strategic behaviour, growth and sector of the company. Interesting conclusions are drawn about the strategic behaviour of the company and its intangible capital, as well as a different method for classifying companies according to their growth, which helps predict business profitability.The authors would like to acknowledge the grants T-CUE Doctoral prize for research on topics directly related to business needs, the grants of the PhD extraordinary award and the support of the University of Burgos to facilitate access to data gathering in relation to the work presented in the paper.Alcalde-Delgado, R.; Sáiz-Bárcena, L.; Olmo, R.; Pérez, C. (2020). Empirical study of the business growth strategy related to the added value by intellectual capital. International Journal of Production Management and Engineering. 8(1):1-12. https://doi.org/10.4995/ijpme.2020.10817OJS11281Alcalde, R, Manzanedo M A, Sáiz-Bárcena L (2016). Empirical evidence for a classification of firm performance according to a sustainable growth rate model. Book of Proceedings International Joint Conference - CIO-ICIEOM-IIE-AIM (IJC 2016).Álvarez, H.F. (2008). La estructura de financiamiento y el crecimiento de las pequeñas y medianas empresas. doi: 10.13140/2.1.2627.8084Amouzesh, N., Moeinfar, Z. and Mousavi, Z. (2011). Sustainable Growth Rate and Firm Performance: Evidence From Iran Stock Exchange. International Journal of Business and Social Science, 2 (23), 249-255.Ashford, N. (2016). De-[Constructing] Growth. Sustainability, 8(11), 1140. https://doi.org/10.3390/su8111140Chen, M.-C., Cheng, S.-J., Hwang, Y. (2005). An empirical investigation of the relationship between intellectual capital and firms' market value and financial performance. Journal of Intellectual Capital, 6 (2),159-176. https://doi.org/10.1108/14691930510592771Davidsson, P., Achtenhagen, L. and Naldi, L. (2010). Small firm growth. Foundations and Trends in Entrepreneur-ship, 6 (2), 69-166. https://doi.org/10.1561/0300000029Demir, R., Wennberg, K., & McKelvie, A. (2017). The strategic management of high-growth firms: A review and theoretical conceptualization. Long Range Planning, 50(4), 431-456. https://doi.org/10.1016/j.lrp.2016.09.004Firer, S.; Mitchell Williams, S. (2003). Intellectual capital and traditional measures of corporate performance. Journal of intellectual capital, 4 (3), 348-360. https://doi.org/10.1108/14691930310487806Gan, K. and Saleh, Z. (2008). Intellectual capital and corporate performance of technology-intensive companies: Malaysia evidence. Asian Journal of Business and Accounting, 1 (1), 113-130.García Muñiz, L.H. (2011). Evidencia empírica de la evaluación del modelo de crecimiento sostenible de Higgins en empresas mexicanas durante el periodo 1998-2008. (Doctoral thesis). Instituto Politécnico Nacional, México D.F.Ghanei, H. Ramezani Kheibari, A. (2015) A Survey of the relationship between intellectual capital and firm performance criteria. Journal of Scientific Research and Development, 2 (7), 280-284.Godet, M. (1994). From Anticipation to Action: a handbook of strategic prospective. Paris, Francia: Unesco.Greco, G., Ferramosca, S., Allegrini, M. (2014). Exploring intellectual capital in family firms. An empirical investi-gation. International Journal of Learning and Intellectual Capital, 11 (2), pp. 91-106. https://doi.org/10.1504/IJLIC.2014.060802Guerras, L.M. and Navas, E. (2015). La Dirección estratégica de la empresa. Teoría y Aplicaciones. Navarra, España: Aranzadi.Gupta, M. (2015). Intellectual Capital & Firm Profitability: An Empirical Study on the IT Sector listed in NSE. Global Journal of Multidisciplinary studies, 4 (4), pp. 105-108.Hajeb, H.R., Moghaddam, A.G. and Alipour, S. (2015). An investigation of intellectual capital impact on companies' market value and financial performace. Academic Journal of Accounting and Economic Researches, 4 (3), 131-139.Haris, M., Yao, H., Tariq, G., Malik, A., & Javaid, H. M. (2019). Intellectual Capital Performance and Profitability of Banks: Evidence from Pakistan. Journal of Risk and Financial Management, 12(2), 56. https://doi.org/10.3390/jrfm12020056Higgins, R.C. (1977). How much growth can a firm afford?. Financial Management, 6 (3), 7-16. https://doi.org/10.2307/3665251Higgins, R.C. (2007). Analysis of Financial Management. New York: McGraw-Hill.Joshi, M., Cahill, D., Sidhu, J., Kansal, M. (2013) Intellectual capital and financial perfor-mance: an evaluation of the Australian financial sector. Journal of intellectual capital, 14 (2), 264-285. https://doi.org/10.1108/14691931311323887Kabue, L. W., & Kilika, J. M. (2016). Firm resources, core competencies and sustainable competitive advantage: An integrative theoretical framework. Journal of management and strategy, 7(1), 98-108. https://doi.org/10.5430/jms.v7n1p98Kai Wah Chu, S., Hang Chan, K., Wu, W.W. (2011). Charting intellectual capital performance of the gateway to China. Journal of Intellectual Capital, 12 (2), 249-276. https://doi.org/10.1108/14691931111123412Kaplan, R.S. and Norton, D.P. (2004). Strategy maps: Converting intangible assets into tangible outcomes. Boston: Harvard Business School Press.Lambert, S. (2015). The importance of classification to business model research. Journal of Business Models, 3(1),49-61.Maditinos, D., Chatzoudes, D., Tsairidis, C.; Theriou, G. (2011). The impact of intellectual capital on firms' market value and financial performance. Journal of Intellectual Capital, 12 (1), 132-151. https://doi.org/10.1108/14691931111097944Magreta, J. (2001). La Administración en la Nueva Economía. Nuevas Perspectivas. Mexico: Oxford University Press.Mahdjour, S. (2015). Set up for growth? - an exploratory analysis of the relationship of growth intention and business models. Manchester: The International Society for Professional Innovation Management (ISPIM). https://doi.org/10.1142/S1363919615400095Mukherjee, T., & Sen, S. S. (2019). Intellectual Capital and Corporate Sustainable Growth: The Indian Evidence. The East Asian Journal of Business Management (EAJBM), 9(2), 5-15. https://doi.org/10.13106/jbees.2019.vol9.no2.5Najafizadeh, S.A., Fordoei, E.J. (2014). Investigation the Effect of Intellectual Capital on Market Value and Financial Performance of Listed Companies in Tehran Stock Exchange. Global Journal of Management Studies and Re-searches, 1 (3), 143-150.Peñate Santana, Y. (2013). Factores determinantes del crecimiento de las pymes: el papel de las capacidades diná-micas y la orientación emprendedora. (Doctoral thesis). University of Oviedo, Spain.Pew Tan, H., Plowman, D. and Hancock, P. (2007). Intellectual capital and financial returns of companies. Journal of Intellectual Capital, 8 (1), 76-95. https://doi.org/10.1108/14691930710715079Pulic, A. (1998). Measuring the performance of intellectual potential in knowledge economy. Paper presented at the 2nd McMaster Word Congress on Measuring and Managing Intellectual Capital, McMaster University, Hamilton.Pulic, A. (2000). VAIC™-an accounting tool for IC management. International journal of technology management, 20 (5-8), 702-714.https://doi.org/10.1504/IJTM.2000.002891Pulic, A. (2004). Intellectual capital-does it create or destroy value?. Measuring business excellence, 8 (1), 62-68. https://doi.org/10.1108/13683040410524757Pulic, A. (2008). The principles of intellectual capital efficiency-A brief description. Inspired by Knowledge in Or-ganisations, 182 (1), 67-93.Salazar, B. C., Villegas, E. (2019). Intellectual capital of industrial sector Mexican companies measured through the VAIC™ model. Journal of Administrative Science, 1(1), 1-9.Sallenave, J.-P. (1991). Gerencia y planeación estratégica. Bogotá, Colombia: Norma.Sallenave, J.P. (2002). Gerencia integral. Bogotá, Colombia: Norma.Sardo, F., & Serrasqueiro, Z. (2018). Intellectual capital, growth opportunities, and financial performance in European firms: Dynamic panel data analysis. Journal of Intellectual Capital, 19(4), 747-767. https://doi.org/10.1108/JIC-07-2017-0099Schwab, L., Gold, S., & Reiner, G. (2019). Exploring financial sustainability of SMEs during periods of production growth: A simulation study. International Journal of Production Economics, 212, 8-18. https://doi.org/10.1016/j.ijpe.2018.12.023Shiu, H. (2006), The application of the value added intellectual coefficient to measure corporate performance: evidence from technological firms, International Journal of Management, 23(2), 356-365.Socolich Mansilla, M.I. (2007). Desempeño financiero y creación de valor en empresas chilenas fusionadas. (Doctoral thesis). Universidad de Chile, Chile.Smriti, N., & Das, N. (2018). The impact of intellectual capital on firm performance: a study of Indian firms listed in COSPI. Journal of Intellectual Capital, 19(5), 935-964. https://doi.org/10.1108/JIC-11-2017-0156Svanadze, S., Kowalewska, M. (2015). The measurement of intellectual capital by VAIC method example of WIG20. Online Journal of Applied Knowledge Management, 3 (2), 36-44.Ulum, I., Ghozali, I. and Purwanto, A. (2014). Intellectual Capital Performance of Indonesian Banking Sector: A Modi-fied VAIC (M-VAIC) Perspective. Asian Journal of Finance & Accounting, 6 (2), 103-123. https://doi.org/10.5296/ajfa.v6i2.5246Xu, J., & Wang, B. (2018). Intellectual capital, financial performance and companies' sustainable growth: Evidence from the Korean manufacturing industry. Sustainability, 10(12), 4651. https://doi.org/10.3390/su10124651Zia, M., Muhammad, H., Arbab, S., Shahzad, A., Bilal, S. (2014). VAIC and Firm Performance: Banking Sector Of Pakistan. Information and Knowledge Management, 4 (2), 100-107

Efecto del peso al sacrificio y de la raza en la calidad instrumental y sensorial de la carne de cabritos lechales

Se utilizaron 141 cabritos de 5 razas españolas a dos pesos de sacrificio y se determinó la calidad instrumental y sensorial de su carne. La influencia del peso al sacrificio es, presumiblemente, muy importante sobre la calidad de la carne, pero este efecto debe ser valorado para cada raza. Aunque la carne del cabrito más ligero tuvo mayores valores en la fuerza de compresión, en el análisis sensorial esta carne fue descrita como más tierna y jugosa

Ontología del alma y facultades de conocimiento. Alma, cuerpo y conocimiento en la obra psicológica de Ramon Llull

El artículo que a continuación presentamos pretende insistir en la conveniencia del trabajo comparativo entre la doctrina psicológica y epistemológica según Ramon Llull y las doctrinas proporcionadas por la tradición fi losófi ca del siglo XIII. Para ello, el Liber novus de anima rationali se convierte en referente al tratarse de la única obra de Ramon Llull que trata del alma desde los parámetros de la tradición aristotélica.In this article we present a comparison of the psychological and epistemological theories of Ramon Llull with philosophical doctrines of the 13th century. For this purpose, the Liber novus de anima rationali serves as the main reference because it is the only work by Ramon Llull which deals with the soul in an Aristotelian framework

La mujer al margen de la ficción. Algunas presencias femeninas en el cine español de la década de 1940

A partir del análisis de las películas Altar mayor (Gonzalo Delgrás, 1944), El clavo (Rafael Gil, 1944) y Tuvo la culpa Adán (Juan de Orduña, 1944), se intenta ilustrar la hipótesis de una cierta expulsión de los personajes femeninos por parte de la ficción fílmica española de la inmediata posguerra civil, que no solo los alejaría de sí mediante el discurso ideológico, sino también a través de la puesta en escena. El método se aleja tanto de las vías historiográficas como de la política de los autores, así como de los estudios culturales y otras disciplinas afines, para seguir los caminos, ya iniciados por otros autores, de una posible historia de las formas en el cine español. De este modo, se analizan asuntos como la relación de la actriz con el plano y la narración, su desaparición de los lindes existentes entre ambos, su conversión en fantasmagoría y, en fin, la construcción de una segunda ficción rebelde que se enfrenta a la oficial. Para concluir, el texto se pregunta por la posibilidad del cuerpo y la gestualidad de la actriz como instigadores de una cierta poética materialista del análisis fílmico.Through an analysis of the films Altar mayor [High Altar] (Gonzalo Delgrás, 1944), El clavo [The Nail] (Rafael Gil, 1944) and Tuvo la culpa Adán [Adam's Fault] (Juan de Orduña, 1944), I attempt to support the hypothesis of a certain kind of expulsion of female characters in Spanish fiction films in the years immediately following the Civil War, which would not only exclude them through ideological discourse, but also through the mise en scène. The analytical method adopted here moves away both from historiographical approaches and from the politique des auteurs, as well as from cultural studies and other similar disciplines, to take a direction already begun by other authors towards a possible history of forms in Spanish cinema. I thus analyse questions such as the relationship of the actress with the shot and the narration, her disappearance from the borders existing between them, her conversion into phantasmagoria, and, in short, the construction of an alternative, rebellious story in opposition to the official one. To conclude, I argue for the possibility of viewing the actress’s body and gestures as instigators of a kind of materialist poetics in film analysis