Ueber die Potenzreihen der hyperelliptischen Thetafunctionen

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Die partiellen Differentialgleichungen der hyperelliptischen Thetafunctionen

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Creating permanent 3D arrangements of isolated cells using holographic optical tweezers

We report the creation of permanent 3D configurations of cells, at predefined positions, within a gelatin matrix. The technique used holographic optical tweezers to manipulate individual E. coli within a solution comprising monomer precursors. The matrix was then set and after the laser beam was removed, we were able to demonstrate that the structures remained intact for many days. We were also able to demonstrate that, in the presence of appropriate nutrients, the E. coli survived within the gelatin matrix for several days. The technique could have a number of potential future applications, including the arrangement of a variety of different cell types in complex architectures, as motifs for promoting tissue differentiation and growth within the field of cell engineering.     

Nachweis der salpetrigen S?ure im Trinkwasser

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Regular bases in products of power series spaces

We prove that Λ_∞(α) × Λ₁(β) has a regular basis iff Λ_∞(α) ? Λ₁(β) has a regular basis iff Λ_∞(α) ? Λ₁(β) is isomorphic to a Cartesian product of two power series spaces. We give a simple condition on α, β which determines when these equivalent statements hold.     

ASICA Association Internationale pour le Calcul Analogique

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International Association for Analog Computation

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ASICA Association Internationale pour le Calcul Analogique