Ba-doped CeO(2) nanowires were obtained from CeO(2) particles through a facile composite-hydroxide-mediated (CHM) route. The products were characterized by x-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscope (HRTEM). The formation process of the product was discussed. Humidity ...

In combining forecasts, a simple average of the forecasts performs well, often better than more sophisticated methods. In a prescriptive spirit, we consider some other parsimonious, easy-to-use heuristics for combining interval forecasts and compare their performance with the benchmark provided by the simple average, using real-life data sets consisting of forecasts made by professionals in the...

Foreign investors in developing countries are exposed to comparatively high levels of environmental uncertainty and often use political activities to manage this uncertainty. At the same time, international entrepreneurs seek out uncertain environments, because of the potential opportunities and upside potential associated with uncertain situations. We investigate the interplay between politica...

As argued by Werner DeBondt and Richard H. Thaler (1995): “Perhaps the most robust finding in the psychology of judgment is that people are overconfident.” This paper surveys part of the vast empirical and experimental literature on overconfidence. We find broad evidence that many subjects underestimate their health and driving risk, and that this often results in underinvestment in precautions...

The underconfidence with practice effect (UWP) refers to the finding that people’s judgments of learning shift from overconfidence to underconfidence on and after a first study-test trial (Koriat, Ma’ayan, & Sheffer, 2002). Finn and Metcalfe (2007, 2008) proposed that people show UWP because they use their memory of prior test performance as a cue to make subsequent judgments of learning and in...

The CeO₂ NPs are increasingly used in industry but the environmental release of these NPs and their subsequent behavior and biological effects are currently unclear. This study evaluates for the first time the effects of CeO₂ NPs on the survival and the swimming performance of two cladoceran species, Daphnia similis and Daphnia pulex after 1, 10 and 100 mg.L⁻¹ CeO₂ exposures for 48 h. Acute tox...

This paper examines firm value creation associated with CEO turnover. The literature has focused on the heterogeneity in CEOs. We instead focus on the heterogeneity in post-turnover firm strategies, which are significant changes in senior management and operations. We show that the variation in strategy choices has significant explanatory power for the variation in postturnover performance. Exa...

backgrounds and aims: cinnamomum zeylanicum is a medicinal herb used in iranian traditional medicine as an analgesic spice, which its analgesic effect has been experimentally confirmed. thus, this study was conducted to compare the antinociceptive effect of cinnamon essential oil (ceo) with those of morphine and diclofenac in mice. materials and methods: 80 male albino mice were selected and ra...