Stellarium version 0.18.0

Cuevaenes A and B, new polyene carboxylic acids from Streptomyces sp. HKI 0180.

In the course of a screening for newmetabolites from strains of actinomycetes we disclosed Streptomyces sp. HKI 0180 as the producer of cuevaenes A (1) and B (2). The strain was isolated from a soil sample from the cave of Altamira (Spain). In this paper we report the production, isolation, structure elucidation and biological properties of 1 and 2 (Fig. 1). An agar slant culture of the above s...

Version Stamps - Decentralized Version Vectors

Version vectors and their variants play a central role in update tracking in optimistic distributed systems. Existing mechanisms for a variable number of participants use a mapping from identities to integers, and rely on some form of global configuration or distributed naming protocol to assign unique identifiers to each participant. These approaches are incompatible with replica creation unde...

N - version design Versus one Good Version

Software Diversity as a way of achieving high reliability of software Software diversity has long been seen as way of achieving higher reliability of software than is attainable by a single software version subjected to a heroic testing. The known experiments with software diversity confirm that indeed fault-tolerant software employing diversity is "on average" more reliable than a single softw...

First Version : August , 1998 . This Version : April

Many technologies used by the LDCs are developed in the OECD economies and are designed to make optimal use of the skills of these richer countries' workforces. Differences in the supply of skills create a mismatch between the requirements of these technologies and the skills of LDC workers, and lead to low productivity in the LDCs. Even when all countries have equal access to new technologies,...

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