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One of the major problems in studies on gonadotropin(GTH)is to use the appropriate assay method. While numerous methods of bio-assay for GTH were used by many workers, one of those was based on the weight-increases of gonad and accessory sexual organ of assay animals, and this might be classified into following three groups according to the species of assay animals;rat, mouse and chick method. ...

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Wildlife biologists historically considered the edge between adjacent habitat types highly productive and benef icial to wildlife A currant dogma is that edges adversely affect a wide range o f avian species by increasing depredation and parasitism rates o f nest~ I critically evaluated existing empirical evidence to test whether there was a gradation in nest success as a funct ion o f distance...

This study investigated the cognitive load theory prediction that the inconsistent findings concerning the effectiveness of instructional animations are exacerbated by their transitory nature. Three groups were compared who received different but equivalent forms of instruction in learning a topic in economics. One group received an animation presentation with integrated text and diagrams, a se...

We use evidence from the Second Reform Act, introduced in the United Kingdom in 1867, to analyze the impact on electoral outcomes of extending the vote to the unskilled urban population. Exploiting the sharp change in the electorate caused by franchise extension, we separate the effect of reform from that of underlying constituency level traits correlated with the voting population. Although we...

We use evidence from the Second Reform Act, introduced in the United Kingdom in 1867, to analyze the impact on electoral outcomes of extending the vote to the unskilled urban population. By exploiting the sharp change in the electorate caused by franchise extension, we separate the effect of reform from that of underlying constituency level traits correlated with the voting population. Although...