This book is organized into five parts, as indicated in the Chapter Descriptions in this preface. The first four chapters present the MC68020 family to the reader. These chapters also introduce microcomputers and computer ...

Automatic generation of starvation-free semaphore solutions to general mutual exclusion problems is discussed. A reduction approach is introduced for recognizing edge-solvable problems, together with an O(N^2) algorithm ...

No abstract available.

The standard implementation of mutual exclusion by means of a semaphore allows starvation of processes. Between 1979 and 1986, three algorithms were proposed that preclude starvation. These algorithms use a special kind ...

Currently, the mechanisms underlying the effects of nitrogen on nodulation and nitrogen fixation of leguminous plants remain uncertain. To further investigate the relationship between nitrogen with nodulation and nitrogen ...

The influence of two DNA gyrase inhibitors, nalidixic acid and novobiocin, on DNA synthesis in isolated pea chloroplasts was examined. Novobiocin at 1–5 mol m−3 markedly lowered [3H]thymidine incorporation into DNA (30–95% ...

Intact chloroplasts from young pea leaves were able to incorporate [3H]thymidine into DNA at relatively high rates (50 pmol mg-1 chlorophyll h-1 or more), using light as the sole energy source. The intact plastids were ...

During leaf development, chloroplasts are formed by the binary fission of pre-existing plastids (1); thus, replication of chloroplast DNA (ctDNA) must occur to maintain an adequate amount in each organelle. The levels of ...

Incorporation of [3H]TTP into DNA by pea chloroplast extracts was highly dependent on the age of the tissue from which plastids were prepared. Catalytic activity was greatest in samples from 6- to 9-d-old plants; preparations ...