A genomic library containing DNA fragments of 0.5 to 2 kilobase pairs in length from Yersinia enterocolitica serovar O:8 was constructed in a bacteriophage lambda gt11 expression vector. Mouse antibodies specific for the iron-regulated high-molecular-weight proteins (HMWPs) were used to screen the library. Two positive clones of 1 and 0.5 kilobase pairs, designated A13 and D7, respectively, wer...

Four specific forms of theoretical reductionism within economics are addressed in the paper, whose main purpose is to foster a climate for change. The addressed forms are, relations among human beings are reduced to relations of equivalents; economic rationality is reduced to rational choice; the category of happiness is reduced to that of utility; trust is reduced to reputation. © 2000 Elsevie...

Drought stress is the most important factor limiting successful production of agricultural crops worldwide. The response some almond cultivars grafted on GF677 rootstock was studied to drought at a research greenhouse in Horticultural Science Research Institute Karaj, Iran, 2016-2017 growing season. plant materials included 12 (Prunus dulcis Mill.) genotypes/cultivars, including ‘Sh10’, ‘Saba’,...

Single-chain antibodies (scFv) are small, recombinant proteins in which variable domains from immunoglobulin heavy and light chains are physically linked with a flexible peptide. They are monovalent and lack the heavy chain constant domins for activation of complement and binding to cellular receptors. However scFvs can possess biological activity by binding to and inhibiting the action of thei...

Probably because of their interpretability and transparent nature, synthetic controls have become widely applied in empirical research economics the social sciences. This article aims to provide practical guidance researchers employing control methods. The starts with an overview introduction estimation. main sections discuss advantages framework as a design, describe settings where reliable es...

Most methodological discussion in experimental economics has been pursued by justifying the use of experiments as theory testing vehicles. More recently it has also been argued that the external validity of experiments requires the use of nonexperimental field evidence. Therefore, it is argued, experiments are intermediaries between theories and field evidence. In this paper it is proposed that...