Vacuum tube availability assessment program /

Mode of access: Internet.

Stockpile and accessibility of strategic and critical materials to the United States in time of war. Hearings before the Special Subcommittee on Minerals, Materials, and Fuel Economics of the Committee on Interiod and Insular Affairs, United States Senate, Eighty-third Congress, first-[second] session, pursuant to S. Res. 143, a resolution to investigate the accessibility and availability of supplies of critical raw materials ...

Hearings held Oct. 20, 1953-Dec. 6, 1954.

Availability of ground water in the Albuquerque area, Bernalillo and Sandoval Counties, New Mexico,

Includes bibliography.

Availability of information from Federal departments and agencies. Hearings before a Subcommittee of the Committee on Government Operations, House of Representatives, Eighty-fourth- eighty-sixth Congress.

Mode of access: Internet.

The sage of Sinnissippi. Being a brief sketch of the life of Congressman Frank Orren Lowden, of Oregon, Illinois, brief sketches of his rivals in political battles, a short artical relating to his availability as a presidential candidate for 1908, and an official and authentic account of state elections in Illinois, statistically, combined with a roll of honor of the nation, the state, the county, and the village, the home of the author ...

Mode of access: Internet.

Availability of occupational health services for federal employees in GSA buildings-1985 : a chart book /

Item 532-E-10.

Availability of occupational health services for federal employees : results of a federal agency survey.

Shipping list no.: 86-742-P.

Public availability of diplomatic archives.

S 2:Ar 2

Derivation and use of automobile availability as a variable for estimating travel demand /

Jan. 1979.

Availability and chemistry of ground water on the Bruneau Plateau and adjacent eastern plain in Twin Falls County, south-central Idaho /

Bibliography: p. 41-43.

Report availability notice

Mode of access: Internet.

Availability and use of water in the United States; special report.

Caption title.

Confirmation: Increasing resource availability for transactional workflows

The notion of compensation is widely used in advanced transaction models as means of recovery from a failure. Similar concepts are adopted for providing transaction-like behaviour for long business processes supported by workflows technology. In general, it is not trivial to design compensating tasks for tasks in the context of a workflow. Actually, a task in a workflow process does not have to be compensatable in the sense that the forcibility of reverse operations of the task is not always guaranteed by the application semantics. In addition, the isolation requirement on data resources may make a task difficult to compensate. In this paper, we first look into the requirements that a compensating task has to satisfy. Then we introduce a new concept called confirmation. With the help of confirmation, we are able to modify most non-compensatable tasks so that they become compensatable. This can substantially increase the availability of shared resources and greatly improve backward recovery for workflow applications in case of failures. To effectively incorporate confirmation and compensation into a workflow management environment, a three level bottom-up workflow design method is introduced. The implementation issues of this design are also discussed. (C) 2003 Elsevier Science Inc. All rights reserved.

Food choice in Siganus fuscescens: influence of macrophyte nutrient content and availability

Using multiple-choice feeding experiments, the selection of six species of macrophytes by the herbivorous rabbitfish Siganus fuscescens was examined. The rabbitfish showed distinct food choice in the laboratory; however, selection of macrophytes by S. fuscescens was not related to their absolute nutrient content (nitrogen, carbon, energy and ash free dry mass). Nutrient assimilation estimates showed that the macrophytes which were most preferred were those that S. fuscescens assimilated best. In S. fuscescens, the macrophytes that were preferred passed through the gut significantly faster than the less preferred species. Gut transit time had a significant effect on the absolute value of a food item in terms of net nutrient gain per unit time. This study showed that food value could be inferred from the absolute nutrient content of the macrophytes. Thus both the ability to assimilate nutrients as well as the absolute nutrient content of macrophytes must be quantified when assessing food value. (C) 2004 The Fisheries society of the British Isles.

Cannibalism in juvenile blue-swimmer crabs Portunus pelagicus (Linnaeus, 1766): effects of body size, moult stage and refuge availability

Factors influencing the rate of cannibalism in juvenile blue-swimmer crabs Portunus pelagicus were investigated under controlled conditions using time-lapse video recordings. This study was undertaken to improve blue-swimmer crab culture and experimentally addressed (1) prey vulnerability (2) cannibal-victim interactions, and (3) activity patterns of juveniles in varying degrees of refuge. Crabs used in the study were aged 15 weeks and sorted into two size classes; small (less than or equal to 60 mm carapace width (CW)) and large (greater than or equal to65 mm CW) of a similar sex ratio. Vulnerability and thus survival was influenced by body size variation, moult stage and refuge availability. Crabs with carapace width less than or equal to 60 mm were more vulnerable than larger individuals, as indicated by significant differences in survival rates. As predicted, juveniles in transition stages associated with ecdysis were especially vulnerable. Premoult (redliner) crabs appeared to be in a high state of agitation as evidenced by the frequency of agonistic encounters and this may be a contributing factor to the high mortality observed at this critical premoult stag. increases in refuge density increased survival of juveniles proportionally, indicating that the quantity of shelter is important for reducing cannibalism in this species. Cannibal-victim interactions were frequently asymmetrical in terms of size and moult stage. Cannibals were significantly heavier than victims, and were predominantly at intermoult stage. Sexual biases among cannibals and victims were not found in this study. Activity patterns of juveniles were influenced by the experimental conditions. Crabs provided with high refuge showed reduced aggressive activity and increased time spent resting, but unchanged locomotion or feeding activity. Regular grading as well as the presence of suitable shelter for newly moulted crabs is recommended for improving culture of P. pelagicus. Research into inducing synchronous moulting may also yield promising results. (C) 2004 Elsevier B.V. All rights reserved.