Hospitality and tourism research rankings by author, university, and country using six major journals: The second decade of the new millennium

Park, Cater, and Abbott (2011) published a paper on Journal of Hospitality and Tourism Research, which has been widely used as a benchmark for ranking the research performance of the hospitality and tourism management (HTM) programs in the universities across the world. In the first decade of the millennium (2000-2009), the hospitality and tourism industry had developed vigorously, and research in this field had emerged rapidly (Park, Cater & Abbott, 2011). During that time period, many journal articles were contributed by universities such as Cornell and from countries such as United States (Park et al., 2011). Park et al. (2011) examined the geographic distribution of the most productive researchers contributing most to the top-tier hospitality and tourism journals. The result indicated that some countries were underrepresented such as France, Germany and Russia. And many of the research papers addressed the importance of Asia-Pacific region and particularly on China (Shen et al., 2018). At the end of the paper, the authors suggested that future studies apply the same method to review the trend of hospitality and tourism research again. This study aimed to fulfill this research goal. This study aimed to examine the current status of hospitality and tourism research during 2010-2019 with the same method provided by Park et al. (2011) and further compare the results to show the trends and changes between the two decades

Modulating electron density of vacancy site by single Au atom for effective CO2_{2} photoreduction

The surface electron density significantly affects the photocatalytic efficiency, especially the photocatalytic CO$_{2}$ reduction reaction, which involves multi-electron participation in the conversion process. Herein, we propose a conceptually different mechanism for surface electron density modulation based on the model of Au anchored CdS. We firstly manipulate the direction of electron transfer by regulating the vacancy types of CdS. When electrons accumulate on vacancies instead of single Au atoms, the adsorption types of CO$_{2}$ change from physical adsorption to chemical adsorption. More importantly, the surface electron density is manipulated by controlling the size of Au nanostructures. When Au nanoclusters downsize to single Au atoms, the strong hybridization of Au 5d and S 2p orbits accelerates the photo-electrons transfer onto the surface, resulting in more electrons available for CO$_{2}$ reduction. As a result, the product generation rate of Au$_{SA}$/Cd$_{1-x}$S manifests a remarkable at least 113-fold enhancement compared with pristine Cd$_{1-x}$S

Light-Reinforced Key Intermediate for Anticoking To Boost Highly Durable Methane Dry Reforming over Single Atom Ni Active Sites on CeO₂.

Dry reforming of methane (DRM) has been investigated for more than a century; the paramount stumbling block in its industrial application is the inevitable sintering of catalysts and excessive carbon emissions at high temperatures. However, the low-temperature DRM process still suffered from poor reactivity and severe catalyst deactivation from coking. Herein, we proposed a concept that highly durable DRM could be achieved at low temperatures via fabricating the active site integration with light irradiation. The active sites with Ni-O coordination (NiSA/CeO2) and Ni-Ni coordination (NiNP/CeO2) on CeO2, respectively, were successfully constructed to obtain two targeted reaction paths that produced the key intermediate (CH3O*) for anticoking during DRM. In particular, the operando diffuse reflectance infrared Fourier transform spectroscopy coupling with steady-state isotopic transient kinetic analysis (operando DRIFTS-SSITKA) was utilized and successfully tracked the anticoking paths during the DRM process. It was found that the path from CH3* to CH3O* over NiSA/CeO2 was the key path for anticoking. Furthermore, the targeted reaction path from CH3* to CH3O* was reinforced by light irradiation during the DRM process. Hence, the NiSA/CeO2 catalyst exhibits excellent stability with negligible carbon deposition for 230 h under thermo-photo catalytic DRM at a low temperature of 472 °C, while NiNP/CeO2 shows apparent coke deposition behavior after 0.5 h in solely thermal-driven DRM. The findings are vital as they provide critical insights into the simultaneous achievement of low-temperature and anticoking DRM process through distinguishing and directionally regulating the key intermediate species

Hospitality and tourism research rankings by author, university, and country using six major journals: The second decade of the new millennium

Park, Cater, and Abbott (2011) published a paper on Journal of Hospitality and Tourism Research, which has been widely used as a benchmark for ranking the research performance of the hospitality and tourism management (HTM) programs in the universities across the world. In the first decade of the millennium (2000-2009), the hospitality and tourism industry had developed vigorously, and research in this field had emerged rapidly (Park, Cater & Abbott, 2011). During that time period, many journal articles were contributed by universities such as Cornell and from countries such as United States (Park et al., 2011). Park et al. (2011) examined the geographic distribution of the most productive researchers contributing most to the top-tier hospitality and tourism journals. The result indicated that some countries were underrepresented such as France, Germany and Russia. And many of the research papers addressed the importance of Asia-Pacific region and particularly on China (Shen et al., 2018). At the end of the paper, the authors suggested that future studies apply the same method to review the trend of hospitality and tourism research again. This study aimed to fulfill this research goal. This study aimed to examine the current status of hospitality and tourism research during 2010-2019 with the same method provided by Park et al. (2011) and further compare the results to show the trends and changes between the two decades.</p

Resonant Lasing Emission in Undoped and Mg-Doped Gallium Nitride Thin Films on Interfacial Periodic Patterned Sapphire Substrates

In this work, low-threshold resonant lasing emission was investigated in undoped and Mg-doped GaN thin films on interfacial designed sapphire substrates. The scattering cross-section of the periodic resonant structure was evaluated by using the finite difference time domain (FDTD) method and was found to be beneficial for reducing the threshold and enhancing the resonant lasing emission within the periodic structures. Compared with undoped and Si-doped GaN thin films, p-type Mg-doped GaN thin films demonstrated a better lasing emission performance. The lasing energy level system and defect densities played vital roles in the lasing emission. This work is beneficial to the realization of multifunctional applications in optoelectronic devices

Revisit hospitality and tourism research rankings in six journals: Second decade of the new millennium

The purpose of this research was to replicate an earlier study that analyzed hospitality and tourism research contributions in the first decade of the new millennium (Park et al., 2011) using a time frame of 2010-2019. The present study reviewed six top-tier hospitality and tourism journals, including the International Journal of Hospitality Management, Journal of Hospitality & Tourism Research, Cornell Hospitality Quarterly, Tourism Management, Journal of Travel Research, and Annals of Tourism Research. The papers were classified by research themes in the hospitality and tourism categories, respectively. The results offered the rankings by publication productivity pertaining to individual authors, universities, and countries/regions across the world. The findings give insights into future directions and identify research needs for academicians and industry practitioners in the hospitality and tourism field

Revisit hospitality and tourism research rankings in six journals: Second decade of the new millennium

The purpose of this research was to replicate an earlier study that analyzed hospitality and tourism research contributions in the first decade of the new millennium (Park et al., 2011) using a time frame of 2010-2019. The present study reviewed six top-tier hospitality and tourism journals, including the International Journal of Hospitality Management, Journal of Hospitality & Tourism Research, Cornell Hospitality Quarterly, Tourism Management, Journal of Travel Research, and Annals of Tourism Research. The papers were classified by research themes in the hospitality and tourism categories, respectively. The results offered the rankings by publication productivity pertaining to individual authors, universities, and countries/regions across the world. The findings give insights into future directions and identify research needs for academicians and industry practitioners in the hospitality and tourism field

Human Microbe-Disease Association Prediction by a Novel Double-Ended Random Walk with Restart

Microorganisms in the human body play a vital role in metabolism, immune defense, nutrient absorption, cancer control, and prevention of pathogen colonization. More and more biological and clinical studies have shown that the imbalance of microbial communities is closely related to the occurrence and development of various complex human diseases. Finding potential microbial-disease associations is critical for understanding the pathology of a few diseases and thus further improving disease diagnosis and prognosis. In this study, we proposed a novel computational model to predict disease-associated microbes. Specifically, we first constructed a heterogeneous interconnection network based on known microbe-disease associations deposited in a few databases, the similarity between diseases, and the similarity between microorganisms. We then predicted novel microbe-disease associations by a new method called the double-ended restart random walk model (DRWHMDA) implemented on the interconnection network. In addition, we performed case studies of colon cancer and asthma for further evaluation. The results indicate that 10 and 9 of the top 10 microorganisms predicted to be associated with colorectal cancer and asthma were validated by relevant literatures, respectively. Our method is expected to be effective in identifying disease-related microorganisms and will help to reveal the relationship between microorganisms and complex human diseases