130,695 research outputs found
Raman spectroscopic and structural studies of heat-treated graphites for lithium-ion batteries
No full textStandard graphite TIMREX(R) SLX 50 was oxidised at 500-800 °C under air atmosphere in a muffle and a rotary furnace. Scanning Electron Microscopy (SEM), Raman spectroscopy, and X-Ray Powder Diffraction (XRD) were used to study the changes in surface morphology and crystallinity. The results show a slight increase of the La value and a decrease of the rhombohedral fraction with increased heat-treatment temperature (HTT). XRD measurements show no significant change in La values within the bulk of graphite samples. Above 700 °C SEM images of graphite reveals holes and cavities, whereas heat-treatment temperatures below 700 °C do not significantly affect graphite materials parameters
Measuring spa-goers' preferences : a conjoint analysis approach
No full textThe spa market has been growing tremendously in the Asia-Pacific region. Besides its growth potential in the tourism industry, spas are becoming important revenue centers for hotels and resorts. Despite the enormous growth and potential of the spa market, the preferences of spa-goers are overlooked. The aim of this research is thus to fill this gap in theory and practice by spa-goers' preferences based on their preferred combination of spa attributes. The study is exploratory in nature and adopts a conjoint approach to analyze the preferences of the spa-goers. The findings reveal that mid-level prices, a high level of therapist qualifications, a high level of privacy, a full range of spa facilities, and branded spa products are preferred by customers. Moreover, therapist qualifications, price, and level of privacy are found to be the most important attributes in making spa bookings. Paper also examines the relative importance of different spa attributes to spa-goers of different sociodemographic backgrounds and spa visit characteristics.School of Hotel and Tourism Managemen
Changing audience behaviour: Festival goers and throwaway tents
No full textPurpose: To translate theory into a practical tool, the purpose of this paper is to provide a conceptual framework for the development of social marketing strategies to modify event attendee behaviour in a sustainable direction.
Design/methodology/approach: Consumer value is synthesised with social marketing and consumer behaviour theory to develop the framework. A major problem for festivals (throwaway tents) and current pro-environmental practices are used to determine the framework's applicability.
Findings: The conceptual framework suggests that achieving desired behaviour(s) within an audience requires consideration of the added value at the downstream level, strategies that recognise offsite/onsite behaviour settings, engagement of upstream advocacy and more attention to the evaluation of success.
Research limitations/implications: A single low-involvement behaviour example is used to validate the conceptual framework suggesting further work is needed to widen tests of its applicability.
Originality/value: This paper synthesises theory into a framework that has significant potential as a tool to develop behavioural change strategies at events
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Assessment of Dietary Supplement Use, Awareness, and Energy Expenditure among Gym-goers in Aden Governorate, Yemen
No full textBackground: Dietary supplements (DS) containing vitamins, proteins, and minerals are widely used by gym-goers to enhance health, recovery, and performance. However, awareness of their safe use, nutritional adequacy, and energy balance varies considerably.
Objective: To assess dietary supplement use, awareness, and energy balance among gym-goers in Aden Governorate, Yemen.
Methods: A cross-sectional study was conducted among 270 gym-goers selected from five gyms using stratified multi-stage sampling. Data on supplement consumption, calorie intake, expenditure, and awareness were collected and analyzed.
Results: Of the 270 participants, 64.8% reported using nutritional supplements. Protein powder (26.7%) and creatine (33.7%) were the most commonly consumed, followed by vitamin D (20%), zinc (18.9%), and multivitamins (18.5%). Calcium (8.9%) and biotin (4.4%) were less frequently used, while fat burners, herbal products, and ginseng were reported by fewer than 3%. Most respondents were aware of potential adverse effects (67%) and supplement misuse risks (66.6%); 67.8% sought medical advice, and 51.1% were able to interpret product labels. Reported benefits included muscle building (55.6%), increased energy (33.7%), and weight loss (29.3%). Dietary analysis showed inadequate intake, with all gym-goers consuming <6 g/kg of carbohydrates, 78.9% consuming <20% of calories from fat, and 95.9% consuming ≤1.6 g/kg of protein. Supplement use was significantly associated with education, occupation, income, and awareness (p = 0.001), and protein powder use correlated with higher TDEE (p = 0.007).
Conclusion: Supplement use is common among gym-goers but is accompanied by nutritional imbalances and limited awareness of risks. Educational programs are recommended to promote balanced diets and informed, evidence-based supplement use
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Scholarly Communication and Publishing Lunch and Learn Talk #11: The ULS Open Access Author Fee Fund
No full textAt the May 2014 talk, you will learn about the ULS Open Access Author Fee Fund--what it is, why we do it, how it works, and how the program is going so far
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