The internationalization of science and its influence on academic entrepreneurship

We conjecture that the mobility of academic scientists increases the propensity of such agents to engage in academic entrepreneurship. Our empirical analysis is based on a survey of researchers at the Max Planck Society in Germany. We find that mobile scientists are more likely to become nascent entrepreneurs. Thus, it appears that citizenship and foreign-education are important determinants of the early stages of academic entrepreneurship

Contribution of a time-dependent metric on the dynamics of an interface between two immiscible electro-magnetically controllable Fluids

We consider the case of a deformable material interface between two immiscible moving media, both of them being magnetiable. The time dependence of the metric at the interface introduces a non linear term, proportional to the mean curvature, in the surface dynamical equations of mass momentum and angular momentum. We take into account the effects of that term also in the singular magnetic and electric fields inside the interface which lead to the existence of currents and charges densities through the interface, from the derivation of the Maxwell equations inside both bulks and the interface. Also, we give the expression for the entropy production and of the different thermo-dynamical fluxes. Our results enlarge previous results from other theories where the specific role of the time dependent surface metric was insufficiently stressed.Comment: 25 page

What Determines the Efficiency of Regional Innovation Systems?

We assess the efficiency of regional innovation systems (RIS) in Germany by means of a knowledge production function. This function relates private sector research and development (R&D) activity in a region to the number of inventions that have been registered by residents of that region. Different measures and estimation approaches lead to rather similar assessments. We find that both spillovers within the private sector as well as from universities and other public research institutions have a positive effect on the efficiency of private sector R&D in the respective region. It is not the mere presence and size of public research institutions, but rather the intensity of interactions between private and public sector R&D that leads to high RIS efficiency. We find that relationship between the diversity of a regions industry structure and the efficiency of its innovation system is inversely u-shaped. Regions dominated by large establishments tend to be less efficient than regions with a lower average establishment size

Persönliche Beziehungen, der Transfer von akademischem Wissen und der Standort von Gründungen aus Hochschulen

In dieser Studie wird die Bedeutung von persönlichen Beziehungen zwischen Unternehmensgründern aus Hochschulen und Hochschulforschern für die Entscheidung der Gründer, sich in der Region der Heimathochschule niederzulassen, untersucht. Am Beispiel von Gründungen aus Hochschulen in Regionen mit mehreren Hochschulen kann gezeigt werden, dass bei der Entscheidung der Gründer, in der Region zu bleiben, der Nähe zur Heimatfakultät größere Bedeutung zukommt als der Nähe zu vergleichbaren Fakultäten an anderen lokalen Hochschulen. Die Ergebnisse deuten darauf hin, dass für den Zugang zu akademischem Wissen und Ressourcen und deren Transfer in Privatunternehmen über das einfache lokale Vorhandensein von Hochschulen hinaus persönliche Beziehungen bedeutsam sind. Dies hat Implikationen für die Rolle der Hochschulen als Standortvorteil für Unternehmen, die von akademischem Wissen und Ressourcen profitieren können oder darauf angewiesen sind

JIMS Discussion Paper Series DP 280109

We conjecture that the mobility of academic scientists increases the propensity of such agents to engage in academic entrepreneurship. Our empirical analysis is based on a survey of researchers at the Max Planck Society in Germany. We find that mobile scientists are more likely to become nascent entrepreneurs. Thus, it appears that citizenship and foreign-education are important determinants of the early stages of academic entrepreneurship.Jerusalem Institute for Market Studie

The Internationalization of Science and its Influence on Academic Entrepreneurship

We conjecture that the mobility of academic scientists increases the propensity of such agents to engage in academic entrepreneurship. Our empirical analysis is based on a survey of researchers at the Max Planck Society in Germany. We find that mobile scientists are more likely to become nascent entrepreneurs. Thus, it appears that citizenship and foreign-education are important determinants of the early stages of academic entrepreneurship.Academic Entrepreneurship, Human Capital, Scientific Mobility, Knowledge Transfer, Immigrant Entrepreneurship

Long-wave instabilities of non-uniformly heated falling films

info:eu-repo/semantics/publishe

Marangoni effect on the instability of non-uniformly heated falling liguid films

Rapport nr ESA SP-454info:eu-repo/semantics/publishe

Coupling between Marangoni and Rosensweig instabilities

Two semi-infinite incompressible and immiscible viscous fluids of infinite lateral extent are considered in the gravity field. One of them is ferromagnetic and the other is a usual Newtonian liquid. Such a system is submitted to a magnetic field normal to the reference flat surface, which separates the two bulks. Developing the linear stability analysis, we show that the Rosensweig critical values for transverse waves remain unaffected by a solutal or thermal Marangoni instability