1,722,013 research outputs found
Bi-L-RhamBet induces delayed cytotoxicity in A549 cells.
No full textBi-L-RhamBet induces delayed cytotoxicity in A549 cells.</p
Bi-L-RhamBet induces growth inhibition of healthy and cancer cell lines.
No full textSurvival of human healthy lung cell lines (MRC-5; HEL299), mouse Lewis lung cancer cells (LLC1), and human non-small cell lung cancer cells of different stages including: A549, NCI-H23, NCI-H2087 (stage 1), NCI-H522 (stage 2), NCI-H1993 (stage 3a), and NCI-H1755 (stage 4) all decrease with increased concentrations of Bi-L-RhamBet. The values in parentheses correspond to the concentrations inhibiting fifty percent of the cell growth (IC50). They represent mean values ± standard deviation of triplicates (n = 3) and are representative of three independent experiments.</p
A chemically stable electrolyte with a novel sandwiched structure for proton-conducting solid oxide fuel cells (SOFCs)
No full textA chemically stable electrolyte structure was developed for proton-conducting SOFCs by using two layers of stable BaZr0.7Pr 0.1Y0.2O3 -δ to sandwich a highly-conductive but unstable BaCe0.8Y0.2O 3 -δ electrolyte layer. The sandwiched electrolyte structure showed good chemical stability in both CO2 and H2O atmosphere, indicating that the BZPY layers effectively protect the inner BCY electrolyte, while the BCY electrolyte alone decomposed completely under the same conditions. Fuel cell prototypes fabricated with the sandwiched electrolyte achieved a relatively high performance of 185 mW cm- 2 at 700 C, with a high electrolyte film conductivity of 4 × 10- 3 S cm- 1 at 600 C. © 2013 Elsevier B.V
Steam electrolysis by proton-conducting solid oxide electrolysis cells (SOECs) with chemically stable BaZrO3-based electrolytes
No full textBaZrO3-based material was applied as the electrolyte for proton-conducting solid oxide fuel cells (SOECs). Compared with the instability of BaCeO3-based proton-conductors, BaZrO3-based material could be a more promising candidate for proton-conducting SOECs due to its excellent chemical stability under H2O conditions, but few reports on this aspect has been made due to the processing difficulty for BaZrO3. Our recent pioneering work has demonstrated the feasibility of using BaZrO3-based electrolyte for SOECs and the fabricated cell achieves relatively high cell performance, which is comparable or even higher than that for BaCeO3-based SOECs and offers better chemical stability. Cell performance can be further improved by tailoring the electrolyte and electrode
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
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
Kitāb al-wāfī bi-l-wafayāt
No full textUrsprüngliches Erscheinungsjahr: 1418 hKitāb al-wāfī bi-l-wafayā
Kitāb al-wāfī bi-'l-wafayāt
No full textKitāb al-wāfī bi-'l-wafayātErscheinungsjahr 1428hIn arab. Schr., arab
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