Chain complexes of nitely generated free modules over orbit categories provide natural algebraic models for nite G-CW-complexes with prescribed isotropy. We prove a p-hypoelementary Dress induction theorem for K-theory over the orbit category, and use it to re-interpret some results of Oliver and Kropholler-Wall on acyclic complexes.

companies strive to improve market share, grow corporate profit, and gain strategic advantage. in order to achieve these goals, supply chain competency must be placed at the heart of a company’s business model. using e-commerce and information and communication technologies (ict) in today’s changing demands of business has made organizations more responsive and flexible. e-commerce and internet...

UV-vis spectroscopic data indicate that zirconocene cations with Zr-bound allylic chain ends are generally formed during olefin polymerization with zirconocene catalysts. The rates and extent of their formation and of their re-conversion to the initial pre-catalyst cations depend on the types of zirconocene complexes and activators used.

Methods.More than 500 samples were tested by using polymerase chain reaction (PCR) amplification and short tandem repeat (STR) typing. Theextent towhich the remainswere fragmentedandaffectedby taphonomic factors complicated the identification project. Anthropologists reviewed 19,000 samples, and detected inconsistencies in 69, which were further split into 239 new cases and re-sampled by DNA sp...

In this study, we investigated the effects of short-chain, middle-chain, and long-ehain fatty acids on the activity of rat liver ct-amino-fi-carboxymuconate-E-semialdehyde decarboxylase [EC 4.1.1.45] (ACMSD), a key enzyme of tryptophan-niacin metabolism. Moreover, we examined the cholesterol metabolism and lipid peroxidation in re)ation to ACMSD actiyity in rats. When diets containing 2%, S%, a...

Lipid analysis of aquatic plants from lakes on Mt. Kenya, E. Africa, revealed that non-emergent (submerged and ̄oating-leaved) species displayed enhanced abundances of mid-chain length, C23 and C25 n-alkanes. In contrast, the emergent aquatic plants had n-alkane distributions similar to those of the terrestrial vegetation, typically dominated by the long-chain length homologues (>C29). A proxy r...

We consider a physical system constituted by a finite chain of point masses consecutively linked by linear springs and dashpots. At one of the end points acts an external control force aligned with the chain and the system is observable by the position of the other end point. We show that, whatever is the number of the point masses, if the sequence of the elastic constants is proportional to th...

This paper deals with the propagation velocity of synnre chain activation in locally connected networks of artiicial spiking neu-rons. Analytical expressions for the propagation speed are derived taking into account form and range of local connectivity, explicitly modelled synaptic potentials, transmission delays and axonal conduction velocities. Wave velocities particularly depend on the level...

GLD's eight deduction operations consist of six inference operations extension, unit subsumed extension, A-reduction, identical A-reduction, C-reduction, and identical C-reduction; and two bookkeeping operations A-truncation and C-truncation. The extension operations are, in combination, equivalent to the extension operations of other chain format systems. GLD's reduction operations combine fea...

Many applications facilitate a data processing chain, i.e. a workflow, to process data. Results of intermediate processing steps may not be persistent since reproducing these results are not costly and these are hardly re-usable. However, in stream data processing where data arrives continuously, documenting fine-grained provenance explicitly for a processing chain to reproduce results is not a...