The Effect of Co-authorship Network Density on the Performance of Postgraduate Programs

Pauli, Jandir; Basso, Kenny; Gobi, R.; Bilhar, Alissa

doi:10.15728/bbr.2019.16.6.3

Cited by 4 publications

(5 citation statements)

References 48 publications

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“…Furthermore, the standard samples used as positive control, i.e., vanillin, cinnamic acid, and ethyl cinnamate (Pauletti et al, 2006), showed no inhibition activity of free radical molecules. Meanwhile, gallic acid showed stronger activity than butylated hydroxytoluene, which were also tested as positive controls.…”

Section: Antioxidant and Toxicity Assaymentioning

confidence: 96%

“…Gallic acid is commonly used as positive control in antioxidant assays (Sharma and Vig, 2013;Kim et al, 2014;Noreen et al, 2017), since its three -OH molecules render it very active compared with other constituents (Karamac et al, 2005). Pauletti et al (2006) reported that Styrax…”

Section: Antioxidant and Toxicity Assaymentioning

confidence: 99%

“…Styrax sumatrana is one of the 130 tree species that belong to genus Styrax in Styracaceae. Among the genera of Styracaceae, Styrax stands out for the production of resinous material, commonly called as benzoid resin or kemenyan resin (Pauletti et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

“…The hydroxyl groups of phenolic compounds play an important role in the antioxidant activity as scavengers of free radicals and reactive oxygen species (ROS), which are closely related with various diseases and the aging of skin tissues (Epstein, 2009;. Since kemenyan resin contains many saponin, lignin, triterpenes, and phenolic compounds (Pauletti et al, 2006), the investigation of its application as preservative, as well as a medicinal natural product, is of high interest.…”

Section: Introductionmentioning

confidence: 99%

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Radical Scavenging Activity of Kemenyan Resin Produced by an Indonesian Native Plant, Styrax sumatrana

Hidayat¹,

Iswanto²,

Susilowati³

et al. 2018

Journal of the Korean Wood Science and Technology

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Kemenyan resin from Styrax sumatrana is a unique non-timber forest product (NTFP) native from Sumatera Island, Indonesia. It possesses a wide range of applications in the pharmaceutical, perfume, and cosmetics industries. In this paper, six kemenyan resin samples were investigated to evaluate their free radical scavenging activity using 1,1-diphenyl-2-picrylhydrazyl (DPPH) reagent. The kemenyan resin samples, which originated from North Tapanuli, Pakpak Bharat, and Humbang Hasundutan, showed high antioxidant activity with IC50 < 16 mg/L. The antioxidant activity of common kemenyan resin constituents, i.e., cinnamic acid, ethyl cinnamate, gallic acid, and vanillin was also investigated as positive control, although they exhibited lower antioxidant activity (IC50 < 1000 mg/L), except for gallic acid (IC50 = 5,23 mg/L). The total phenolic and flavonoid contents (TPC and TFC) for all samples were 44-66 mg gallic acid equivalents (GAE)/g sample and 143-160 mg quarcetin equivalents (QE)/g sample. The results revealed that kemenyan resin has high potency as an antioxidant and could be used as a natural antioxidant resource.

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Section: Antioxidant and Toxicity Assaymentioning

confidence: 96%

Section: Antioxidant and Toxicity Assaymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Radical Scavenging Activity of Kemenyan Resin Produced by an Indonesian Native Plant, Styrax sumatrana

Hidayat¹,

Iswanto²,

Susilowati³

et al. 2018

Journal of the Korean Wood Science and Technology

View full text Add to dashboard Cite

show abstract

“…Co-authorship is a popular approach to scientific research collaboration in higher education (Feng and Kirkley 2020;Pauli et al 2019). Previous studies have found that co-authorship is helpful for scientists' performance (Gao, Chen, and Huai 2019;Gonzalez-Brambila, Veloso and Krackhardt 2013;Lee and Bozeman 2005;Li, Liao and Yen 2013) and their academic career (Abbasi, Altmann, and Hossain 2011;Abbasi, Chung, and Hossain 2012;Abramo, D'Angelo and Murgia 2014;Eisend and Schmidt 2014;He Geng and Campbell-Hunt 2009;Hu, Chen and Liu 2014;Li, Liao and Yen 2013).…”

Section: Introductionmentioning

confidence: 99%

Outstanding and ordinary scientists’ co-authorship networks in the early career phase

Tang

Naumann

et al. 2021

MJLIS

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How do scientists’ ego-centered co-authorship networks affect their research productivity and impact during the early career phase? Do co-authorship networks evolve differently for outstanding scientists vs. ordinary scientists? Our study responded to these questions by demonstrating that scientists’ co-authorship network size and betweenness centrality of their co-authorship network positively affected both their research productivity and research impact. Scientists’ tie strength diversity of their co-authorship network moderated the relationship between their ego-network size and their research performance. Their co-authorship network’s degree centralization moderated the relationship between their betweenness centrality and research performance. Further, the size and betweenness centrality of the co-authorship network were significantly different between the two groups of scientists since their fourth working year. Outstanding scientists had a larger co-authorship network and their positions in the co-authorship network were more central than those of ordinary scientists. Implications for scientists and policy makers in science and higher education are discussed

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Bibliometric Analysis of Scientific Production on Visual and Performing Arts Indexed in Scopus: Achievements and Challenges

Ordóñez

Agámez-Llanos²,

Cano³

et al. 2022

SSRN Journal

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The Effect of Co-authorship Network Density on the Performance of Postgraduate Programs

Cited by 4 publications

References 48 publications

Radical Scavenging Activity of Kemenyan Resin Produced by an Indonesian Native Plant, Styrax sumatrana

Radical Scavenging Activity of Kemenyan Resin Produced by an Indonesian Native Plant, Styrax sumatrana

Outstanding and ordinary scientists’ co-authorship networks in the early career phase

Bibliometric Analysis of Scientific Production on Visual and Performing Arts Indexed in Scopus: Achievements and Challenges

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