1,721,121 research outputs found
Corrigendum
No full textCorrigendum to ‘Harnessing gemcitabine metabolism: a step towards personalized medicine for pancreatic cancer’ by Muhammad Saif, Yoomi Lee and Richard Kim, Therapeutic Advances in Medical Oncology 2012; 4(6):341-6. DOI: 10.1177/1758834012453755 . The corresponding author would like to note their name should be recognized as Muhammad Wasif Saif (Saif MW) and not as Muhammad Saif (Saif M) in this article
Novel metallic stainless-steel mesh-supported conductive membrane and its performance in the electro-filtration process
No full textIn this study, we demonstrate the fabrication of a thoroughly metallic electro-conductive membrane by using simple filtration to uniformly coat AgNWs dispersion through stainless steel (SUS)-mesh, which functions both as filter and a flexible conductive substrate. The as-prepared AgNWs networks layer on the SUS-mesh was further strengthened by electroplating Ag layers (P-SUS membrane); exhibiting an overall electrical conductivity of 9.2 x 104 S/m, which is up to 42 times greater than the conductivity of pristine SUS-mesh. The P-SUS membrane exhibited adequate physical durability against chemical and mechanical stresses under prolonged filtration, and high pure water flux of 534 +/- 54 LMH/bar. This electro-membrane displayed the anticipated flux recovery in harvesting microalgae (Chlorella sp. HS-2) when filtration was done with the membrane used as a cathode: micro -sized bubbles, generated from the cathodic membrane, functioned to detach the foulants and recover the relative flux to a significant level. The P-SUS membrane indeed possesses necessary traits that the polymer-support membrane lacks, in terms of not only electrical conductivity and mechanical strength but also filtration per-formance with anti-fouling capability, all of which are of necessity to be considered workable electroconductive membrane.
EMPLOYING NATION BRANDING AND PUBLIC DIPLOMACY: STRATEGIES FOR PAKISTAN
Full text linkIn the 21st century, states use nation-branding techniques to safeguard their national interests. They employ public diplomacy strategies to maintain their international image. Through branding techniques and public diplomacy strategies, nations can build a positive image among the committee of nations. It is argued in this paper that the international image of Pakistan is required to be improved, and there is a need to shun the notion of negative characteristics associated with terrorism, religious extremism, Talibanization, and allegedly branding as a failed state. There is also a need to study the mindset for conducting various surveys about Pakistan’s image and its sponsors. The main argument of this research work is that Pakistan has all the variables required for nation branding and building positive public perception. To improve its international image, Pakistan has to adopt innovative nation-branding techniques and public diplomacy strategies.
Bibliography Entry
Kayani, Saima Ashraf, and Muhammad Saif ur Rehman. 2022. "Employing Nation Branding and Public Diplomacy: Strategies for Pakistan." Margalla Papers 26 (1): 34-46
Sono-assisted sulfuric acid process for economical recovery of fermentable sugars and mesoporous pure silica from rice straw
No full textThe present study was focused on the successive recovery of reducing sugars and pure silica from rice straw using ultrasound-sulfuric acid process. The effect of sonication time (10-60 min), liquid to solid ratio (7-10), and acid concentration (7.5-10%) was investigated. Maximum sugar yield (310 g/kg dry biomass) was achieved at 80 degrees C, 10% H2SO4, 60 min and liquid to solid ratio 7. Sono-assisted sulfuric acid process efficiently removed metal oxides from the rice biomass. The residual biomass was combusted at 750 C for 15 min to produce white silica. Analyses revealed that white silica possessed mesoporous structure with 166.03 m(2)/g specific area, and a purity of 96% (wt.%). Thus, ultrasound-sulfuric acid process followed by short thermal treatment could produce high sugar yield and pure silica. This approach may not only facilitate solid waste management but it may also reduce the overall cost of bioethanol production to make it cost competitive with fossil fuels. (C) 2013 Elsevier B.V. All rights reserved
Generation of electricity from FeCl3 pretreatment of rice straw using a fuel cell system
No full textThis study explored a new approach to the pretreatment of lignocellulosic biomass using FeCl3 combined with a fuel cell system to generate electricity. After pretreatment, ferric iron (Fe3+), a strong catalyst in the hydrolysis of carbohydrate, was found to be reduced to ferrous iron (Fe2+) by means of the oxidation of xylose and lignin. Ferrous iron, as a fuel, was employed to the anode part of a fuel cell, generating power of 1110 mW/m(2). During the fuel cell operation, ferrous iron was completely removed through oxidation to ferric iron and precipitated out. The optimal conditions for the operation of the fuel cell were found to be a pH of 7.0 and ferrous iron concentration of above 0.008 M. These results clearly show that a fuel cell system could be used not only to remove ferrous iron from liquid hydrolysate, but also to produce electricity. (C) 2012 Elsevier Ltd. All rights reserved
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
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
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