1,140 research outputs found
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Drive Tourists’ Lodging Demand Determinants for Highway Hotels and Motels in U.S.
The current research explores drive tourists’ lodging demand determinants and effects of external environment (e.g. fuel price and seasonality) on tourism. The authors assumed economic, socio-demographic and trip-related variables influence highway hotels and motels visitors’ lodging demand. Though 2SLS model, the effects were statistically tested, resulting in the identification of the drive tourism market’s characteristics and lodging demand determinants in highway hotel and motel industry. On the contrary to OLS estimation, 2SLS model showed good performance to deal with endogeneity problem and accurate results. The model verified economic variable’s effects on lodging demand. According to the descriptive analysis, typical profile of drive tourists take approximately 400 miles round trip and stay two nights at the hotel. It was revealed that gas price was highly influenced by seasonality. Gas price has played as instrument variable to reflect seasonal effect and travel cost. It was showed that fuel price/travel cost and income are most influential determinants for lodging demand in highway hotel and motel industry
GBA server: EST-based digital gene expression profiling
Expressed Sequence Tag-based gene expression profiling can be used to discover functionally associated genes on a large scale. Currently available web servers and tools focus on finding differentially expressed genes in different samples or tissues rather than finding co-expressed genes. To fill this gap, we have developed a web server that implements the GBA (Guilt-by-Association) co-expression algorithm, which has been successfully used in finding disease-related genes. We have also annotated UniGene clusters with links to several important databases such as GO, KEGG, OMIM, Gene, IPI and HomoloGene. The GBA server can be accessed and downloaded at
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Moderate Effects of Brand Awareness on eWOM Intention: Perspectives in Community-based Festival Tourism
This study aim to understand how tourists’ festival experience influence destination/place brand equity building as well as moderate effect of brand awareness on eWOM intention. A web-based survey is prepared and is supposed to be performed in order to explore how tourists response eWOM dissemination. Based on customer-based brand equity (CBBE), moderate effect of brand awareness on eWOM intention is examined through second order structural equation modeling. Expected results provide insightful information about the importance of brand awareness in consumers\u27 brand knowledge transaction and marketing performance. Expected results will clarify festival tourists’ psychological characteristics in destination branding setting
TGGLinesPlus: A robust topological graph-guided computer vision algorithm for line detection from images
Line detection is a classic and essential problem in image processing,
computer vision and machine intelligence. Line detection has many important
applications, including image vectorization (e.g., document recognition and art
design), indoor mapping, and important societal challenges (e.g., sea ice
fracture line extraction from satellite imagery). Many line detection
algorithms and methods have been developed, but robust and intuitive methods
are still lacking. In this paper, we proposed and implemented a topological
graph-guided algorithm, named TGGLinesPlus, for line detection. Our experiments
on images from a wide range of domains have demonstrated the flexibility of our
TGGLinesPlus algorithm. We also benchmarked our algorithm with five classic and
state-of-the-art line detection methods and the results demonstrate the
robustness of TGGLinesPlus. We hope our open-source implementation of
TGGLinesPlus will inspire and pave the way for many applications where spatial
science matters.Comment: Our TGGLinesPlus Python implementation is open source. 27 pages, 8
figures and 4 table
Differential specificity between closely related corals and abundant Endozoicomonas endosymbionts across global scales
© The Author(s), 2016. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in The ISME Journal 11 (2017): 186–200, doi:10.1038/ismej.2016.95.Reef-building corals are well regarded not only for their obligate association with endosymbiotic algae, but also with prokaryotic symbionts, the specificity of which remains elusive. To identify the central microbial symbionts of corals, their specificity across species and conservation over geographic regions, we sequenced partial SSU ribosomal RNA genes of Bacteria and Archaea from the common corals Stylophora pistillata and Pocillopora verrucosa across 28 reefs within seven major geographical regions. We demonstrate that both corals harbor Endozoicomonas bacteria as their prevalent symbiont. Importantly, catalyzed reporter deposition–fluorescence in situ hybridization (CARD–FISH) with Endozoicomonas-specific probes confirmed their residence as large aggregations deep within coral tissues. Using fine-scale genotyping techniques and single-cell genomics, we demonstrate that P. verrucosa harbors the same Endozoicomonas, whereas S. pistillata associates with geographically distinct genotypes. This specificity may be shaped by the different reproductive strategies of the hosts, potentially uncovering a pattern of symbiont selection that is linked to life history. Spawning corals such as P. verrucosa acquire prokaryotes from the environment. In contrast, brooding corals such as S. pistillata release symbiont-packed planula larvae, which may explain a strong regional signature in their microbiome. Our work contributes to the factors underlying microbiome specificity and adds detail to coral holobiont functioning.This research was supported by a KAUST-WHOI Post-doctoral Partnership Award to MN and a KAUST-WHOI Special Academic Partnership Funding Reserve Award to CRV and AA. Research in this study was further supported by baseline research funds to CRV by KAUST and NSF award OCE-1233612 to AA. RR was supported by the ct-PIRE Project, Robert Lemelson Fellowship, Graduate Research Award (UCLA), Women Divers Hall of Fame—Sister Fund Conservation Award and a Betty and E. P. Franklin Grant in Tropical Biology and Conservation
Giant Enhancement of Magnetostrictive Response in Directionally-Solidified Fe83Ga17Erx Compounds
We report, for the first time, correlations between crystal structure, microstructure and magnetofunctional response in directionally solidified [110]-textured Fe83Ga17Erx (0 < x < 1.2) alloys. The morphology of the doped samples consists of columnar grains, mainly composed of a matrix phase and precipitates of a secondary phase deposited along the grain boundary region. An enhancement of more than ~275% from ~45 to 170 ppm is observed in the saturation magnetostriction value (λs) of Fe83Ga17Erx alloys with the introduction of small amounts of Er. Moreover, it was noted that the low field derivative of magnetostriction with respect to an applied magnetic field (i.e., dλs/dHapp for Happ up to 1000 Oe) increases by ~230% with Er doping (dλs/dHapp,FeGa= 0.045 ppm/Oe; dλs/dHapp,FeGaEr= 0.15 ppm/Oe). The enhanced magnetostrictive response of the Fe83Ga17Erx alloys is ascribed to an amalgamation of microstructural and electronic factors, namely: (i) improved grain orientation and local strain effects due to deposition of Er in the intergranular region; and (ii) strong local magnetocrystalline anisotropy, due to the highly anisotropic localized nature of the 4f electronic charge distribution of the Er atom. Overall, this work provides guidelines for further improving galfenol-based materials systems for diverse applications in the power and energy sector
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