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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]

Through theoretical modeling, we find that the dynamics of photogenerated carriers play a very important role in shaping the temporal waveform of terahertz (THz) radiation pulses emitted from biased low-temperature (LT)-grown GaAs antenna. Our modeling gives successful analyses for the sharp and short, slow and long negative parts of temporal THz waveforms. By including intraband, carrier relaxation effects in the modeled mobility, we find an obvious dependence of the THz conversion efficiency on the material of THz emitter and experimental parameters such as the optical duration, the center wavelength, and the fluence of the laser pulses. Our research also shows that electron-hole and electron-electron collisions in LT-GaAs contribute to the saturation phenomenon with an increase of laser fluence. OCIS codes: 320.7090, 140.3070, 260.2110, 300.6470.

Abstract Background Bud dormancy is a critical developmental process that allows perennial plants to survive unfavorable environmental conditions. Pear is one of the most important deciduous fruit trees in the world, but the mechanisms regulating bud dormancy in this species are unknown. Because genomic information for pear is currently unavailable, transcriptome and digital gene expression data for this species would be valuable resources to better understand the molecular and biological mechanisms regulating its bud dormancy. Results We performed de novo transcriptome assembly and digital gene expression (DGE) profiling analyses of ‘Suli’ pear (Pyrus pyrifolia white pear group) using the Illumina RNA-seq system. RNA-Seq generated approximately 100 M high-quality reads that were assembled into 69,393 unigenes (mean length = 853 bp), including 14,531 clusters and 34,194 singletons. A total of 51,448 (74.1%) unigenes were annotated using public protein databases with a cut-off E-value above 10-5. We mainly compared gene expression levels at four time-points during bud dormancy. Between Nov. 15 and Dec. 15, Dec. 15 and Jan. 15, and Jan. 15 and Feb. 15, 1,978, 1,024, and 3,468 genes were differentially expressed, respectively. Hierarchical clustering analysis arranged 190 significantly differentially-expressed genes into seven groups. Seven genes were randomly selected to confirm their expression levels using quantitative real-time PCR. Conclusions The new transcriptomes offer comprehensive sequence and DGE profiling data for a dynamic view of transcriptomic variation during bud dormancy in pear. These data provided a basis for future studies of metabolism during bud dormancy in non-model but economically-important perennial species.

US local governments subsidizing professional sports clubs shifted from economic benefits (the essence of which is the redistribution of local economy rather than any additional economic growth) to positive externality (like city branding benefits, life quality improvement benefits, and psychic income benefits). It is held that the latter of positive externality should be followed is pivotal to urban development and the quality life of residents, therefore more justifiable for this subsidy. In view of the transformation of justification for government subsidies in the U.S., The positive externality should be followed in terms of non-market value. Contingent valuation method (CVM) is considered to be a relatively ideal tool for non-market value evaluation. It is also suggested that the application of CVM in non-market value evaluation of professional sports clubs in China should be localized by drawing on lessons from the American practice. [ABSTRACT FROM AUTHOR]