1,721,280 research outputs found
Oil and renewable energy stock markets: unique role of extreme shocks
No full textVarious environmental issues and destructive disasters have driven the attention of renewable energy sources to an unprecedented level. Based on extreme shocks, this paper mainly examines the causal relations of oil and renewable energy markets from the perspectives of time and frequency domains. We find the causal relations of Wilder Hill Clean Energy index (NEX) and West Texas Intermediate oil futures nearly do not exist in normal shocks but mainly exist among the extreme shocks, especially during the long-term and short-term horizons. These results are robust considering alternative oil futures benchmark and alternative renewable energy stocks. Interestingly, during the COVID-19 pandemic, we find that significant causal relations mainly exist among the extreme shocks of NEX and WTI, but the relations are weaker. Our paper aims to disclose new insights into oil and renewable energy stock markets, which are of vital importance to related enterprises, market participants, policy makers, and scholars
Discoxenus Wasmann new to China with description of a new species (Coleoptera: Staphylinidae: Aleocharinae)
No full textXu, Wang, Cai, Yu-Jie, Zeng, Qing-Huai, Wang, Wei-Min, Yu, Xin-Fan, Song, Xiao-Bin (2022): Discoxenus Wasmann new to China with description of a new species (Coleoptera: Staphylinidae: Aleocharinae). Zootaxa 5175 (3): 389-393, DOI: https://doi.org/10.11646/zootaxa.5175.3.
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
FIGURES 3–16. D. shenzhenensis—3. Antenna, 4. Head, 5. Labrum, 6. Mentum, 7 in Discoxenus Wasmann new to China with description of a new species (Coleoptera: Staphylinidae: Aleocharinae)
No full textFIGURES 3–16. D. shenzhenensis—3. Antenna, 4. Head, 5. Labrum, 6. Mentum, 7. Mandible, left, 8. Mandible, right, 9. Tergite VIII, 10. Sternite VIII, male, 11. Tergites IX and X, 12. Pronotum, 13. Elytron, 14. Median lobe of aedeagus, ventral view, 15. Median lobe of aedeagus, lateral view, 16. Paramere. Scales = 0.1 mm.Published as part of Xu, Wang, Cai, Yu-Jie, Zeng, Qing-Huai, Wang, Wei-Min, Yu, Xin-Fan & Song, Xiao-Bin, 2022, Discoxenus Wasmann new to China with description of a new species (Coleoptera: Staphylinidae: Aleocharinae), pp. 389-393 in Zootaxa 5175 (3) on page 392, DOI: 10.11646/zootaxa.5175.3.6, http://zenodo.org/record/700370
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
FIGURES 17–18. Habits and habitats 17. log with Odontotermes termites, 18 in Discoxenus Wasmann new to China with description of a new species (Coleoptera: Staphylinidae: Aleocharinae)
No full textFIGURES 17–18. Habits and habitats 17. log with Odontotermes termites, 18. Attack behavior of termites (Photo by Mr. Yu-Jie Cai from Guangdong, Shenzhen, Wutong Mt. at 21 Sep 2021).Published as part of Xu, Wang, Cai, Yu-Jie, Zeng, Qing-Huai, Wang, Wei-Min, Yu, Xin-Fan & Song, Xiao-Bin, 2022, Discoxenus Wasmann new to China with description of a new species (Coleoptera: Staphylinidae: Aleocharinae), pp. 389-393 in Zootaxa 5175 (3) on page 393, DOI: 10.11646/zootaxa.5175.3.6, http://zenodo.org/record/700370
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Sarcopenia and MASLD: novel insights and the future
No full textMetabolic dysfunction-associated steatotic liver disease (MASLD; previously known as non-alcoholic fatty liver disease) is the leading cause of chronic liver disease worldwide and is closely linked to the obesity epidemic. MASLD often coexists with sarcopenia, an age-related loss of muscle mass and muscle function. These conditions are closely connected, and metabolic syndrome and its associated metabolic factors have a crucial role in their relationship. Metabolic syndrome considerably affects the risk and progression of MASLD and sarcopenia and promotes their development through various mechanisms. This Review explores the epidemiological link between MASLD and sarcopenia and the effect of metabolic syndrome and its components on both conditions, summarizing current treatment strategies and emerging evidence. To effectively manage both MASLD and sarcopenia, it is crucial to incorporate the five metabolic risk factors of metabolic syndrome into risk assessment and treatment strategies. Future research should continue to investigate the mechanisms linking metabolic syndrome, MASLD and sarcopenia. Establishing standardized definitions of sarcopenia for patients with MASLD and developing personalized treatment strategies through precision medicine will improve diagnosis, interventions and overall patient outcomes. <br/
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