abstract. academic spin-offs are recognized as the main means of technology transfer, contribute to the commercialization of the results of academic research, leading to society wealth creation. academic spin-offs start with some major disadvantages related to their liability of newness, smallness and their university origination. it is been argued that academic spin-off need to strengthen thei...

We have simulated a population of young spin-powered pulsars and computed the beaming pattern and light curves for the three main geometrical models: polar cap emission, two-pole caustic (“slot gap”) emission and outer magnetosphere emission. The light curve shapes depend sensitively on the magnetic inclination α and viewing angle ζ. We present the results as maps of observables such as peak mu...

Hund's multiplicity rule is investigated for the carbon atom using quantum Monte Carlo methods. Our calculations give an accurate account of electronic correlation and obey the virial theorem to high accuracy. This allows us to obtain accurate values for each of the energy terms and therefore to give a convincing explanation of the mechanism by which Hund's rule operates in carbon. We find that...

We investigate the properties of alkali-alkaline earth diatomic molecules in the lowest Σ(+) states of the doublet and quartet multiplicity by ab initio calculations. In all sixteen cases studied, the permanent electric dipole moment points in opposite directions for the two spin states. This peculiarity can be explained by molecular orbital theory. We further discuss dissociation energies and ...

When calculating the spin multiplicity at either second-order Møller-Plesset (MP2) or iterative approximate coupled-cluster singles and doubles (CC2) levels of theory using same strategy for calculation expectation value as in regular CC together with usual definitions MP2 CC2 density matrices, artificial contamination occurs closed-shell molecules. Non-intuitively, open-shell systems, results ...

The ability of unrestricted Hartree–Fock (UHF), Møller–Plesset (MP2), density functional theory (DFT), and hybrid density functional/Hartree–Fock methodologies to describe the structure and spin-state energetics of iron porphyrins was assessed. In the first place, these techniques have been applied to Fe, Fe+, Fe2+, and Fe3+ for which HF calculations overestimate energy gaps, favoring stabiliza...

The analog of the Cachazo Svrček Witten rules for scattering amplitudes with massive quarks is derived following an approach previously employed for amplitudes with massive scalars. A prescription for the external wave-functions is given that leads to a one-to-one relation between fields in the action and spin-states of massive quarks. Several examples for the application of the rules are given...

(Received: February 7, 2008) The large acceptance and high multiplicity capabilities of the CLAS detector make it possible to study a wide range of previously unmeasured strange baryon production processes. Studies of the decay angular distributions of electroproduced strange baryons have yielded several interesting new results. The Λ(1520) electroproduction decay angular distributions shed lig...

The decay of the entry states in ISIYb populated in the reactions of 149 MeV ,oNe with ,44Nd and lUNd has been investigated with a 4" multidetector system gated by a Ge counter. The average excitation energy, the ,.-ray spectra and the angular distribu tions as a function of multiplicity show several changes in the ,.-ray decay. These changes suggest a transition from prolate to particle aligne...