Charm and Bottom Quark Production Cross Sections Near Threshold

The cross sections for charm and bottom quark production in the threshold region are discussed. We consider the effects of an all order resummation of initial state soft-plus-virtual gluon radiation on the total cross sections compared to the order $\alpha_s^3$ results.Comment: 16 pages LaTeX, 5 figures, to be published in Z. Phys.

Task 4 completion report for 40 Kilowatt grid connected modification contract

Startup, operation in grid connect mode, shutdown from grid connects, operation in isolated mode, shutdown from isolated mode, steady state operation, mode transfers, and voltage disconnects are addressed

Materials for electrochemical cell separators Summary report

Asbestos and other candidate materials for electrochemical cell separator

Microgravity: a Teacher's Guide with Activities, Secondary Level

This NASA Educational Publication is a teacher's guide that focuses on microgravity for the secondary level student. The introduction answers the question 'What is microgravity?', as well as describing gravity and creating microgravity. Following the introduction is a microgravity primer which covers such topics as the fluid state, combustion science, materials science, biotechnology, as well as microgravity and space flight. Seven different activities are described in the activities section and are written by authors prominent in the field. The concluding sections of the book include a glossary, microgravity references, and NASA educational resources

Graptemys oculifera

Number of Pages: 2Integrative BiologyGeological Science

Life History and Laboratory Rearing of \u3ci\u3eCorythucha Juglandis\u3c/i\u3e (Hemiptera: Tingidae) With Descriptions of Immature Stages

The life history of Corythucha juglandis was investigated in Jackson and Alexander counties. Illinois. August 1981-December 1985 and the immature stages were described. The bug was also raised from egg to adult under controlled laboratory conditions. This apparently bivoltine species overwintered as adults that became active in late April-early May. began feeding on the undersides of black walnut leaflets, and reproduced shortly thereafter. The seasonal occurrence of the adults and subsequent immature stages is discussed. Adults were last observed in mid-October. C. juglandis was reared on black walnut leaflets under a 16L:8D photoperiod at ca. 23.9°C. The pre-ovipositional, ovipositionaL and post-ovipositional periods averaged 14.0, 50.3, and 11.9 days, respectively: average fecundity was 118.6. The incubation period, and 1st, 2nd, 3rd, 4th, and 5th stadia averaged 16.4,4.3,3.8,4.2,4.6, and 6.7 days, respectively