Abstract We identify a sample of 27 long-period comets for which both nongravitational accelerations and Ly ? -based gas production rates are available. Seven the (i.e., ?25%) did not survive perihelion because nucleus fragmentation or complete disintegration. Empirically, latter nuclei have smallest largest accelerations, indicators small size. Specifically, disintegrating median radius only 0...

The mode of embryonic and larval development and the ethology of metamorphosis in the spider crab and the American lobster are very different, and we took advantage of this to compare neuronal development in the two species. The goals of this study were to discover whether the differences in the maturation of the neuromuscular system in the pereopods and the metamorphic changes of motor behavio...

Extracts and purified extracts of seeds of two plant species, Madhuca latifolia and Calophyllum inophyllum when evaluated against the 2nd instar larvae of Helicoverpa armigera reared on synthetic diet, exhibited high larval mortality, prolongation of developmental period, morphological deformities and highly significant reduction in adult emergence. The reduction in larval weights in the treatm...

Residual effectiveness of plaster matrix formulations of temephos and temephos plus an emulsifier (Atlox 3409F) were evaluated against Aedes aegypti larvae during an 8-wk period. Formulations of 2% and 5% (AI) Atlox with 5% (AI) temephos yielded 100% larval mortality for 8 wk. A 5% temephos formulation without the addition of the emulsifier produced 100% larval mortality through only 1 wk.

The Role of Larval Fat Cells in Starvation Resistance and Reproduction in Adult Drosophila melanogaster by Jerell Roland Aguila Dr. Deborah K. Hoshizaki, Examination Committee Chair Associate Professor of Life Sciences University of Nevada, Las Vegas The intricate life cycle of holometabolous insects includes well-defined larval and adult stages associated with feeding and non-feeding periods. ...