the integration of moving parts on a chip, there is expected to Proton beam (p-beam) writing is a new direct-writing process that uses a focused beam of MeV protons to pattern resist material at nanodimensions. The process, although similar in many ways to direct writing using electrons, nevertheless offers some interesting and unique advantages. Protons, being more massive, have deeper penetra...

The windowless spallation target solution in the MYRRHA project is argued as the only feasible choice within the constraints of the envisaged neutron source performance. The main R&D efforts required as a result of this choice are mentioned. The Vacuum Interface Compatibility Experiment (VICE) to assess the compatibility of the vacuum interface of the proton beam line with the free target surfa...

A modular total synthesis of the potent V-ATPase inhibitors archazolid A and B is reported. The convergent preparation was accomplished by late-stage diversification of joint intermediates. Key synthetic steps involve asymmetric boron-mediated aldol reactions, two consecutive Still-Gennari olefinations to set the characteristic (Z,Z)-diene system, a Brown crotyboration, and a diastereoselective...

1 We develop the framework of natural spaces to study isomorphic embeddings of Banach spaces. We then use it to show that a sufficient failure of the generalized continuum hypothesis implies that the universality number of Banach spaces of a given density under a certain kind of positive embeddings (very positive embeddings), is high. An example of a very positive embedding is a positive onto e...

The naturally occurring ATPase inhibitor protein from ox heart mitochondria was cross-linked to its binding site on the mitochondrial ATPase using 1-ethyl-3-(dimethylamino)propyl carbodiimide. The cross-linked product, when transferred electrophoretically to a nitrocellulose sheet, reacted with antibodies directed against the inhibitor protein and the beta-subunit of the ATPase. It was conclude...

Recent results obtained by the COSY – 11 collaboration concerning the production of η and η mesons in the pp → ppMeson reaction are presented. A comparison of the production amplitude for the π, η and η mesons at the same phase space volume allows to conclude that the proton η interaction is in the order of, or smaller than, the proton-π one. A total cross section determined in a preliminary an...

The MCM (minichromosome maintenance) proteins of archaea are widely believed to be the replicative DNA helicase of these organisms. Most archaea possess a single MCM orthologue that forms homo-multimeric assemblies with a single hexamer believed to be the active form. In the present study we characterize the roles of highly conserved residues in the ATPase domain of the MCM of the hyperthermoph...

The measurements of the longitudinal proton structure function F L in deep inelastic positron-proton scattering at low Bjorken x are presented. The data were taken by the HERA experiments H1 and ZEUS in a series of runs with different proton beam energies. The measured longitudinal structure function is compared to theoretical predictions in higher order QCD and using dipole model calculations....

In order to establish a self-sufficient supply of (99m)Tc, we studied feasibilities to produce its parent nucleus, (99)Mo, using Japanese accelerators. The daughter nucleus, (99m)Tc, is indispensable for medical diagnosis. (99)Mo has so far been imported from abroad, which is separated from fission products generated in nuclear reactors using enriched (235)U fuel. We investigated (99m)Tc produc...