Actividad emprendedora en los inmigrantes. Influencia del guanxi sobre el desarrollo de los negocios chinos

Este trabajo trata sobre el estudio de la actividad emprendedora de los inmigrantes chinos en Andalucía. En particular, se analizan los factores que influyen en el dinamismo de los negocios de inmigrantes chinos en esta comunidad autónoma en términos del crecimiento de las ventas y de sus aproximaciones a la innovación. El estudio presta singular atención al papel que desempeña el capital social como factor favorecedor del desarrollo de estos negocios chinos. A este respecto, en el caso de la comunidad china se pone de manifiesto la influencia clave del ‘guanxi’. El guanxi puede ser definido como una conexión personal e informal entre dos individuos delimitada por un contrato moral implícito que obliga al cumplimiento de normas sociales, como mantener una relación de colaboración a largo plazo o un compromiso mutuo de lealtad, unido a ciertas obligaciones.El análisis empírico se basa en una encuesta realizada en 2012 entre inmigrantes chinos en Andalucía. Asimismo, se comparan las características de los negocios chinos con las empresas de empresarios autóctonos a partir de otra encuesta realizada para el conjunto del tejido empresarial andaluz

Guanxi and risk-taking propensity in Chinese immigrants’ businesses

This paper studies the determinants of the risk-taking propensity in immigrant-owned businesses. The paper has a particular focus on first-generation Chinese immigrants and the effect of the so-called “guanxi”, a specific form of social capital for Chinese commu- nities. The empirical research is based on a survey conducted in 2012 on Chinese immigrant entrepreneurs in Andalusia (Spain). An ordinal logistic regression specification was employed to test the hypotheses. The results show that the Chinese immigrant entrepreneurs with better “guanxi” run businesses with a higher risk-taking propensity. Furthermore, those Chinese immigrant entrepreneurs who have other business owners in their families and undertake business planning and control activities are more prompted to take risks in the management of their companies. The risk-taking propensity of immigrant- owned businesses increases over time starting from the immigrant entrepreneurs’ arrival to Spain. In contrast, the education levels of Chinese entrepreneurs’ bear no significant effect on the risk-taking propensity of their businesses

Semantic lifting and reasoning on the personalised activity big data repository for healthcare research

The fast growing markets of smart health monitoring devices and mobile applications provide opportunities for common citizens to have capability for understanding and managing their own health situations. However, there are many challenges for data engineering and knowledge discovery research to enable efficient extraction of knowledge from data that is collected from heterogonous devices and applications with big volumes and velocity. This paper presents research that initially started with the EC MyHealthAvatar project and is under continual improvement following the project’s completion. The major contribution of the work is a comprehensive big data and semantic knowledge discovery framework which integrates data from varied data resources. The framework applies hybrid database architecture of NoSQL and RDF repositories with introductions for semantic oriented data mining and knowledge lifting algorithms. The activity stream data is collected through Kafka’s big data processing component. The motivation of the research is to enhance the knowledge management, discovery capabilities and efficiency to support further accurate health risk analysis and lifestyle summarisation

Experimental Study of the Nematic Transition in Granular Spherocylinder Packings under Tapping

Using x-ray tomography, we experimentally investigate the nematic transition in granular spherocylinder packings induced by tapping. Upon the validation of the Edwards ensemble framework in spherocylinders, we introduce an empirical free energy that accounts for the influence of gravity and the mechanical stability requirements specific to granular systems. This free energy can predict not only the correct phase transition behavior of the system from a disordered state to a nematic phase, but also a phase coexistence range and nucleation energy barriers that agree with experimental observations.Comment: 19 pages, 5 figure

Generated Graph Detection

Graph generative models become increasingly effective for data distribution approximation and data augmentation. While they have aroused public concerns about their malicious misuses or misinformation broadcasts, just as what Deepfake visual and auditory media has been delivering to society. Hence it is essential to regulate the prevalence of generated graphs. To tackle this problem, we pioneer the formulation of the generated graph detection problem to distinguish generated graphs from real ones. We propose the first framework to systematically investigate a set of sophisticated models and their performance in four classification scenarios. Each scenario switches between seen and unseen datasets/generators during testing to get closer to real-world settings and progressively challenge the classifiers. Extensive experiments evidence that all the models are qualified for generated graph detection, with specific models having advantages in specific scenarios. Resulting from the validated generality and oblivion of the classifiers to unseen datasets/generators, we draw a safe conclusion that our solution can sustain for a decent while to curb generated graph misuses.Comment: Accepted by ICML 202

COMPARATIVE STUDY OF ON-SITE SORTING FOR C&D IN CHINA AND EUROPE

Construction and demolition waste (CDW) accounts for 40% of urban municipal waste in China and around 25% in the European Union (EU). Since the EU is more developed and urbanized than China, its experience with managing CDW may be helpful to China. This study therefore compared China and the EU with respect to the flow of CDW materials and the policies, laws and regulations for CDW management. The results reveal that the CDW management practices and facilities in China are relatively underdeveloped with a large amount of low-value inert material going to landfill compared with the EU. The study also reveals the important role of government involvement in CDW management, including the use of punitive measures and preferential policies; most EU members states achieved their waste recovery rates by 2016 due to mature CDW legalization. To improve the management of CDW in China, a series of suggestions are proposed including waste prevention strategies, establishment of supervision mechanisms, and financial support. </jats:p