1,722,000 research outputs found
Lanostane triterpenoids from the fungus Physisporinus vitreus and their inhibitory activity against nitric oxide production
Zhang, Shu-Han, Wang, Jun, Dong, Xin-Yue, Wang, Gang-Qiang, Feng, Tao, Li, Xiao-Jun, Liu, Ji-Kai (2023): Lanostane triterpenoids from the fungus Physisporinus vitreus and their inhibitory activity against nitric oxide production. Phytochemistry (113556) 206: 1-9, DOI: 10.1016/j.phytochem.2022.113556, URL: http://dx.doi.org/10.1016/j.phytochem.2022.11355
A new species of Potentilla (Potentilleae, Rosaceae) from central China, with reference to molecular and morphological evidence
Zhang, Hua-Jie, Zhang, Dai-Gui, Feng, Tao, Liu, Qun, Yang, Jing-Yuan, Chen, Li, Wang, Heng-Chang, Deng, Tao (2021): A new species of Potentilla (Potentilleae, Rosaceae) from central China, with reference to molecular and morphological evidence. Phytotaxa 480 (2): 185-194, DOI: 10.11646/phytotaxa.480.2.7, URL: http://dx.doi.org/10.11646/phytotaxa.480.2.
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
Variations on the Author
“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
Fig. 1 in Lanostane triterpenoids from the fungus Physisporinus vitreus and their inhibitory activity against nitric oxide production
Fig. 1. Structures of compounds 1–12 isolated from P. vitreus.Published as part of Zhang, Shu-Han, Wang, Jun, Dong, Xin-Yue, Wang, Gang-Qiang, Feng, Tao, Li, Xiao-Jun & Liu, Ji-Kai, 2023, Lanostane triterpenoids from the fungus Physisporinus vitreus and their inhibitory activity against nitric oxide production, pp. 1-9 in Phytochemistry (113556) 206 on page 2, DOI: 10.1016/j.phytochem.2022.113556, http://zenodo.org/record/823040
Fig. 5 in Lanostane triterpenoids from cultivated fruiting bodies of Ganoderma sichuanense: Determination of the C-25 absolute configuration of ganoderic acid A and its derivatives using the phenylglycine methyl ester (PGME) method
Fig. 5. Δδ-Values (δ(S) – δ(R)) of the bis-MTPA esters 28a/28b.Published as part of Chinthanom, Panida, Srichomthong, Kitlada, Rachtawee, Pranee, Boonpratuang, Thitiya, Choeyklin, Rattaket, Feng, Tao, Liu, Ji-Kai & Isaka, Masahiko, 2021, Lanostane triterpenoids from cultivated fruiting bodies of Ganoderma sichuanense: Determination of the C-25 absolute configuration of ganoderic acid A and its derivatives using the phenylglycine methyl ester (PGME) method, pp. 112963 in Phytochemistry (112963) 192 on page 5, DOI: 10.1016/j.phytochem.2021.112963, http://zenodo.org/record/816046
Fig. 2. Key HMBC and 1H–1H in Lanostane triterpenoids from the fungus Physisporinus vitreus and their inhibitory activity against nitric oxide production
Fig. 2. Key HMBC and 1H–1H COSY correlations of compounds 1–8.Published as part of Zhang, Shu-Han, Wang, Jun, Dong, Xin-Yue, Wang, Gang-Qiang, Feng, Tao, Li, Xiao-Jun & Liu, Ji-Kai, 2023, Lanostane triterpenoids from the fungus Physisporinus vitreus and their inhibitory activity against nitric oxide production, pp. 1-9 in Phytochemistry (113556) 206 on page 4, DOI: 10.1016/j.phytochem.2022.113556, http://zenodo.org/record/823040
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