Alternate method of source preparation for alpha spectrometry: no electrodeposition, no hydrofluoric acid

no-homomorphism conditions for hypergraphs

In this paper, we define some new homomorphism-monotone parameters for hypergraphs. Using these parameters, we extend some graph homomorphism results to hypergraph case. Also, we present some bounds for some well-known invariants of hypergraphs such as fractional chromatic number,independent numer and some other invariants of hyergraphs, in terms of these parameters.

Hydrofluoric acid.

Open source processes: no place for politics?

Open source processes have attracted considerable attention recently. The underlying motivation for this surging interest is strikingly varied. Open source is not so much a precisely defined and delineated topic as an evolving, intrinsically ambiguous phenomenon. From a marginal, esoteric interest around ‘hacker’ sub-cultures (Turkle, 1985; Hannemyr, 1999), open source is emerging as a theme wi...

Comparative evaluation of niobium surface preparation methods for electrodeposition

To find a suitable treatment in the preparation of Nb surface for platinum electrodeposition, different methods such as thermal oxidation, anodic oxidation, mechanical roughening, and mechanical roughening with subsequent anodic etching were examined. X-ray photoelectron spectroscopy was used to study the chemical composition of depth analysis of the surface. Moreover, in order to examine the m...

No method, thus madness?

If you ask most medical school deans if they have a course, program, or center doing bioethics, they will enthusiastically assure you that they do. And their enthusiasm for bioethics grows exponentially in proportion to their interest in showing that they are doing something about managing research ethics issues at their institutions. The same can be said about the entire biomedical research es...