Column chelation chromatography on controlled pore glass-8-hydroxyquinoline was demonstrated to be a very efficient method for removing trace metal contaminants from concentrated macronutrient salt solutions used to prepare nutrient media. By using (63)Ni and (65)Zn radio-isotopes as tracers, controlled pore glass-8-hydroxyquinoline column packings were found to retain 99.9% of the radiotracer ...

Aggressive instruction scheduling is known as an effective compiler design technique that allows exploitation of instruction-level parallelisms exposed by modern processor architectures. Trace scheduling is considered to be one of the most effective acyclic global instruction scheduling methods. A trace scheduling algorithm has been developed as part of an optimizing Oberon-2 compiler for the I...

This is a new applied development of trace theory to compilation. Trace theory allows to commute independent program instructions, but overlooks the differences between control and data dependencies. Control(C)-dependences, unlike data-dependences, are determined by the Control Flow Graph, modelled as a local DFA. To ensure semantic equivalence, partial commutation must preserve C-dependences. ...

Recent progress on defining abstract trace semantics for coalgebras rests upon two observations: (i) coalgebraic bisimulation for deterministic automata coincides with trace equivalence, and (ii) the classical powerset construction for automata determinization instantiates the generic idea of lifting a functor to the Eilenberg-Moore category of an appropriate monad T. We take this approach one ...

We apply techniques of microlocal analysis to the study of the transverse geometry of Riemannian foliations in order to analyze spectral invariants of the basic Laplacian acting on functions on a Riemannian foliation with a bundle-like metric. In particular, we consider the trace of the basic wave operator when the mean curvature form is basic. We extend the concept of basic functions to distri...

One-counter nets (OCN) consist of a nondeterministic finite control and a single integer counter that cannot be fully tested for zero. They form a natural subclass of both One-Counter Automata, which allow zero-tests and Petri Nets/VASS, which allow multiple such weak counters. The trace inclusion problem has recently been shown to be undecidable for OCN. In this paper, we contrast the complexi...

An algorithm is presented solving the factor problem in trace monoids Given two traces represented by words the algorithm determines in linear time whether the rst trace is a factor of the second one The space used for this task is linear in the length of the rst word Similar to the Knuth Morris Pratt Algorithm for the factor problem on words the algorithm simulates a nite automaton determined ...

We introduce a self-similar mass model for early-type galaxies, and constrain it using the aperture mass-radius relations determined from the geometries of 22 gravitational lenses. The model consists of two components: a concentrated component which traces the light distribution, and a more extended power-law component (ρ ∝ r−n) which represents the dark matter. We find that lens galaxies have ...

althusser (1918-1990) argues that there are two ways to maintain power. in order to hold power, the ruling class in a pre-capitalist society depends on repressive apparatuses such as police and military force whereas in a modern capitalist society it chooses to use ideological apparatuses like religion, education or arts. bamdede khomar is the story of eighty years of development in iranian soc...

The global logic used by the brain for differentially encoding positive and negative experiences remains unknown along with how such experiences are represented by collections of memory traces at the cellular level. Here we contrast the cellular memory traces that form in the dorsal paired medial (DPM) neurons of Drosophila after conditioning flies with odors associated with aversive or appetit...