No abstract available

[en] The article “Web image search revealed large-scale variations in breeding season and nuptial coloration in a mutually ornamented fish.

[en] Induced mutation breeding is a practical, sustainable solution to the world's food crisis.

[en] This paper considers nuclear breeding systems (i.e., production of fissile fuel from fertile materials). The range of breeding technologies considered is deliberately wide. We include systems which breed by using internal neutron sources--a reactor-breeder, exemplified by the liquid metal fast breeder reactor (LMFBR)--and systems which breed by using external neutron sources--exemplified in this paper primarily by hybrid fusion-fission breeders

[en] Induced mutation breeding is a practical, sustainable solution to the world's food crisis.

[en] The need to provide more accurate property information on U-Mo fuel alloys to operators, modellers, researchers, fabricators, and government increases as success of the GTRI Reactor Convert program continues. This presentation provides an update on fresh fuel characterization activities that have occurred at the INL since the RERTR 2008 conference in Washington, D.C. The update is particularly focused on properties recently obtained and on the development progress of new measurement techniques. Furthermore, areas where useful and necessary information is still lacking is discussed. The update deals with mechanical, physical, and microstructural properties for both integrated and separate effects. Appropriate discussion of fabrication characteristics, impurities, thermodynamic response, and effects on the topic areas are provided, along with a background on the characterization techniques used and developed to obtain the information. Efforts to measure similar characteristics on irradiated fuel plates are discussed. (author)

[en] This chapter discusses reactors, fuel cycles, and fuel production concepts other than those considered conventional in the nuclear community. An attempt is made to look for improvements with the aim of providing cheaper and more durable energy systems, and to contribute toward a solution of the threat of weapons material diversion and weapons proliferation problems. Topics considered include breeding, alternate breeder cycles, alternative reprocessing schemes, symbiotic reactor systems, an interim strategy, and other sources of nuclear fuel. It is determined that the reprocessing of spent fuel is an important safeguard measure in itself

[en] The national papers provide a useful data base for reference. However, due to the variety of system parameters and ground rules used it is difficult to summarize the main findings and particularly to draw general conclusions. For example, we do not recommend using absolute values for natural uranium requirements without further qualification as is done in the Summaries of Sub-group A and B reports. It will always be possible to find options with better figures of merit in this respect at the expense of some other feature such as fuel cost or capital cost. For the same reason we believe that the absolute values of uranium utilization and separative work requirements of tables 2, 6 and 7 in Section A and tables 3.1 A to E, 3.2 A and B, and 3.3 B in Section B should be treated with caution. For absolute values to be meaningful when comparing different reactor systems and fuel cycle options they must be based on uniform optimization procedures, common economic ground rules, and carefully checked calculational methods. This would require a second round effort, which is perhaps beyond the scope of the present INFCE study

[en] Induced mutation breeding is a practical, sustainable solution to the world's food crisis.

No abstract available