Sexual conflict is predicted to generate more rapid reproductive isolation between larger populations. While there is some empirical support for this, the data are inconsistent and, additionally, there has been criticism of some of the evidence. Here we reanalyse two experimental-evolution datasets using an isolation index widely applied in the speciation literature. We find evidence for reprod...

Responses to an item intended to assess teachers’ Pedagogical Content Knowledge (PCK) are discussed. The item examined 92 teachers’ capacity to name the two forms of division, provide a simple representation and story problem for each, and explain which form helps to make sense of dividing a whole number by a decimal. Teachers appeared more familiar with partitive than quotitive division. Appar...

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Based on Dunning’s OLI framework and the investment development path theory, this paper investigated the determinants of outward FDI by China’s provincial firms. The results show that provincial economic development, innovation and technology, and export to GDP ratio are statistically significant determinants, while FDI inflows, import to GDP ratio and provincial market size are not statistical...

Galvanic isolations are essential in many electrical patient-monitoring devices and industrial applications. In this paper, a low-profile wideband three-port isolation amplifier using coreless printed-circuit-board (PCB) transformers for isolation is studied. The PCB thickness used in the isolation amplifier is 0.4 mm. The diameters of the two coreless PCB transformers are 9.75 and 5.856 mm, re...

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The type of reproductive isolation prevalent in the initial stages of species divergence can affect the nature and rate of emergence of additional reproductive barriers that subsequently strengthen isolation between species. Different groups of Mediterranean deceptive orchids are characterized by different levels of pollinator specificity. Whereas food-deceptive orchid species show weak pollina...

Active fault diagnosis (AFD) of parametric faults is considered in connection with closed loop feedback systems. AFD involves auxiliary signals applied on the closed loop system. A fault signature matrix is introduced in connection with AFD and it is shown that if a limited number of faults can occur in the system, a fault separation in the fault signature matrix can be obtained. Then the singl...