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Rapeseed–rice rotation is a cropping system that improves the land-use rate. The present study conducted a field experiment with winter planting of rapeseed as treatment (WR) and winter fallow as control (CK) to investigate the effects of winter planting of rapeseed on growth, yield formation, and 2-acetyl-1-pyrroline (2-AP) biosynthesis of fragrant rice in the two subsequent cropping seasons. The results show that WR treatment improved alkali-hydro nitrogen and rapidly available phosphorus contents in soil. Compared with CK, WR treatment significantly increased grain yield and effective panicle number per plant by 21.16–27.26% and 7.33–21.24%, respectively. Higher net photosynthetic rate, leaf area index, and dry matter accumulation of fragrant rice plants were recorded in WR treatment and CK. Furthermore, compared with CK, WR treatment significantly increased grain 2-AP content, which could be explained by increased content of pyrroline-5-carboxylic acid, methylglyoxal, 1-pyrroline, and enhanced activity of proline dehydrogenase. In addition, future studies should be conducted at a molecular level to reveal the regulation mechanism in 2-AP biosynthesis of fragrant rice under conditions of winter planting of rapeseed. [ABSTRACT FROM AUTHOR]

In this work, electron transport in MgxZn1−xO/ZnO heterostructures at room temperature is simulated by the ensemble Monte Carlo (EMC) method. Electron scattering mechanisms including acoustic deformation potential, piezoelectric acoustic phonon, polar optical phonon (POP), interface roughness (IFR), dislocation, electron escape (ESC) and capture (CPR) by optical phonons, and random alloy are considered in EMC. The electron drift velocity in MgxZn1−xO/ZnO heterostructures is calculated for various Mg mole fractions x (0.1–0.3) at electric fields up to 25 kV/cm. We find that no obvious velocity saturation occurs in the range of the electric field considered. The results show that ESC scattering is one of the main physical mechanisms limiting the drift velocity. On the other hand, the competition between IFR and intersubband POP scattering is found to play an important role in the change in electron drift velocity with the increasing Mg mole fractions. [ABSTRACT FROM AUTHOR]

Mega-sporting events have long been perceived as an exciting way to gather people to attend the performance of top athletes and as a chance for stakeholders to benefit from various kinds of impacts. However, sport events are now facing increasing criticism. The goal of this study is to examine how organizing committees can benefit from the destination image to positively influence sport events' image and intention to recommend. Based on a comprehensive analysis of the literature the following variables have been measured: destination image, event image, event recommendation, tourist satisfaction. During the UEFA Euro 2016 held in France, 725 questionnaires were collected. A confirmatory factor analysis was conducted to test the construct validity, followed by a SEM to test the hypothesized relations. We found that destination image positively influences event image, and that event image positively influences event recommendation and tourist satisfaction. However, destination image did not have a significant influence on tourist satisfaction. This study points out the need for sport events' right holders to pay attention to image factors in selecting the host territory because the latter can influence the perception of the event. [ABSTRACT FROM AUTHOR]