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Cari koleksi dengan cepat sesuai kebutuhan Anda.Spodoptera litura (F.), an important polyphagous insect pest, attacks ca. 300 economic crops in dozens of countries. Investigations into its growth and development performance on different host plants can provide an understanding of the potential for increase of S. litura population in the field. We measured the development time, body weight, and head capsule width of S. litura larvae reared on…
We prove congruences for the number of partition pairs (π1, π2) such that π1 is non-empty, s(π1) ≤ s(π2) and l(π2) < 2s(π1), where s(π) is the smallest part and l(π) is the largest part of a partition. The proofs use Bailey’s Lemma and a generalized Lambert series identity of Chan. We also discuss how a partition pair crank gives combinatori…
Epigenetic control of gene expression has important implications for the regulation of developmental processes, for mediating homeostasis and responses to the external environment, and for transgenerational inheritance of gene expression patterns. Genes that mediate epigenetic control have been well-characterized in Drosophila melanogaster, and we have identified and analyz edan orthologo…
In this study, we explore the social construction of the monarch butterfly as a conservation icon in order to understand how the butterfly has come to be endowed with the power to shape public conversations and potentially alter policy and practice. Our analysis is guided by the sociological concepts of coproduction and boundary objects, which reveal how this butterfly has animated and sustaine…
This article analyzes the efficiency of the intra-household allocation of female and male labor inputs in agricultural production. In a collective household model, spouses� optimal on-farm labor supply is such that the marginal rate of technical substitution between male and female labor is equated over different crops. Using the Uganda National Household Survey 2005/06, we test whether th…