Article(print)#11977
Problems of arid agriculture in West Asia
In: World development: the multi-disciplinary international journal devoted to the study and promotion of world development, Volume 5, p. 441-446
ISSN: 0305-750X
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Article(electronic)#2May 1977
Problems of arid agriculture in West Asia
In: World development: the multi-disciplinary international journal devoted to the study and promotion of world development, Volume 5, Issue 5-7, p. 441-446
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Article(electronic)#4August 24, 2023
Photocatalytic behavior for removal of methylene blue from aqueous solutions via nanocomposites based on Gd2O3/CdS and cellulose acetate nanofibers
In: Environmental science and pollution research: ESPR, Volume 30, Issue 44, p. 99789-99808
ISSN: 1614-7499
AbstractEfficient cleaning of contaminated water by photocatalysis has become an effective strategy in recent years due to its environmental and ecological designation. Cadmium sulfate (CdS) is an excellent photocatalyst in the visible region but has low quantum efficiency. In order to increase the photocatalytic efficiency, CdS was modified with gadolinium oxide (Gd2O3) and combined with graphene oxide (GO) nanoparticles. The estimated crystallite size (Ds) for Gd2O3, CdS/Gd2O3, and CdS/Gd2O3@GO was 29.6, 11.6, and 11.5 nm, respectively. The degradation of methylene blue (MB) reaches the highest values after 60 min under visible light irradiation with a dye concentration of (0.25 ppm). Whereas in powdered composition the efficiency of dye removal has been enhanced under UV irradiation, it reduced by increasing the MB concentration to 0.50 ppm with visible light irradiation. In addition, the CdS with/without Gd2O3 and GO were integrated into electrospun nanofibrous cellulose acetate (CA) through the electrospinning technique. The compounds of Gd2O3, CdS/Gd2O3, and CdS/Gd2O3/GO were encapsulated into CA nanofibers for the degradation of MB under visible and UV irradiation. The apparent rate constant (k) achieves a value of 0.006, 0.007, and 0.0013 min−1 while the removal efficiency reaches 41.02%, 54.71%, and 71.42% for Gd2O3@CA, CdS/Gd2O3@CA, and CdS/Gd2O3/GO@CA, respectively, after 60 min under UV irradiation.
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Article(electronic)#5December 1, 2014
Opinions and Enthusiasm of Girls for Purchasing Clothes, Accessories and Upholstery Via Media in Sharkia Governorate
In: Alexandria science exchange journal: an international quarterly journal of science and agricultural environments, Volume 35, Issue 4, p. 419-442
ISSN: 2536-9784
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Open Access#62016
Contemporary Mamactivist Artists: A Forum on Maternal Activist Art for the Studies in the Maternal Special Issue on The Everyday Maternal Practice: Activist Structures in Creative Work, Summer 2016
This special forum for Studies in the Maternal asks fourteen activistmother-artists, or "mamactivists", to respond to the following questions: (1) When and why did you start making activist/political work on the maternal? (2) What reception/reaction did you receive for the work? (3) What is the latest activist/political work you have made on the maternal? (4) What shifts do you see from this first work to this last work? and (5) Why is the maternal, in your opinion, important to activist, engaged, political art today? Responses highlight a range of geographic and cultural perspectives, as well as artistic strategies. One commonality between them is that they take the maternal not as a biological facticity, but a rich feminist site of political intervention.
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