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Creator | Title | Description | Subject | Date |
| 26 |
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Keller, Robert M. | Sentinels: A concept for multiprocess coordination | The sentinel construct is introduced, which provides a certain syntactic and semantic framework for multiprocess coordination. The advantage of this construct over others is argued to be semantic transparency, efficiency, ease in implementation, and usefulness in verfication. | Sentinels; Multiprocess coordination; Sentinel construct | 1978 |
| 27 |
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Miller, Jan D. | Separation of bitumen from Utah tar sands by a hot water digestion-flotation technique | Tar sand deposits in the state of Utah contain more than 25 billion bbl of in-place bitumen. Although 30 times smaller than the well-known Athabasca tar sands, Utah tar sands do represent a significant domestic energy resource comparable to the national crude oil reserves (31.3 billion bbl). Based ... | Tar sand; Utah; Bitumen; Hot water separation; Froth flotation | 1978 |
| 28 |
 |
Davidson, Diane W. | Size variability in the worker caste of a social insect (veromessor pergandei mayr) as a function of the competitive environment | Worker size polymorphism in colonies of Veromessor pergandei, a granivorous desert ant, is inversely related to the intensity of interspecific competition in the habitat for seven ant communities in the deserts of southern California and southern Arizona. Seed size preferences are positively corr... | Ants; Arizona; California; Coexistence; Communities; Density specialization; Desert granivores; Foraging strategies; Resource partitioning; Size | 1978 |
| 29 |
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Francis, Leslie | Some animals are more equal than others | It is a welcome development when academic Philosophy; starts to concern itself with practical issues, in such a way as to influence people's lives. Recently this has happened with one moral issue in particular-but unfortunately it is the wrong issue, and people's actions have been influenced in the ... | Animal liberation; Rights | 1978 |
