Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Zeid A. Al Othman"'
Autor:
Abdullah M.A. Al Majid, Mohammad Shahidul Islam, Zeid Abdullah Al-Othman, Ahlam F. Al-Salhoob
Publikováno v:
Arabian Journal of Chemistry, Vol 10, Iss S1, Pp S964-S970 (2017)
A set of chiral bis-amide ligands (4a–d and 5a–d) were obtained easily from readily available starting materials in a straightforward manner via acid chloride reaction of the parent Feist’s acid. These ligands have been tested as chiral catalys
Externí odkaz:
https://doaj.org/article/ff760861fc83499cb9a9f722659ae1da
Publikováno v:
Arabian Journal of Chemistry, Vol 9, Iss S2, Pp S1555-S1562 (2016)
We describe a comparative study of the concentration of different metals (e.g., Cd, Pb, As, Ni, Cu, Zn, Mn, and Cr) in various parts of wheat plants (e.g., roots, stem, leaves and seeds) collected at several locations in Khyber Pukhtoon Khaw, Pakista
Externí odkaz:
https://doaj.org/article/0b45b575b972441294073ba66f41630e
Autor:
Naveed Ullah, Fazal Haq, Arshad Farid, Mehwish Kiran, Zeid A. Al Othman, Ahmed Muteb Aljuwayid, Mohamed A. Habila, Awais Bokhari, Saravanan Rajendran, Kuan Shiong Khoo
Publikováno v:
Environmental Research. 219:115091
Textile and printing industries play a vital role in the economy of any country. But the effluents of these industries, which contain toxic Methylene Blue (MB) dye when mixed with fresh water, make it unfit for human health and aquatic life. For the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b8473dd354acfc3d40be927ae47d146
https://doi.org/10.1016/j.envres.2022.115091
https://doi.org/10.1016/j.envres.2022.115091
Autor:
Assem Barakat, Zeid Abdullah Al-Othman, Ahlam F. Al-Salhoob, Abdullah M. A. Al Majid, Mohammad Shahidul Islam
Publikováno v:
Molecules, Vol 17, Iss 5, Pp 5550-5563 (2012)
The hemilabile chiral C2 symmetrical bidentate substituted amide ligands (1R,2R)-5a-d and (1S,2S)-6a-d were synthesized in quantitative yield from (1R,2R)-(+)-3-methylenecyclo-propane-1,2-dicarboxylic acid (1R,2R)-3 and (1S,2S)-(-)-3-methylene-cyclop
Externí odkaz:
https://doaj.org/article/9f2adfef9ee2490eb90a05c0ac748cf8
Publikováno v:
Molecules, Vol 16, Iss 12, Pp 10443-10456 (2011)
Agricultural wastes have great potential for the removal of heavy metal ions from aqueous solution. The contamination of water by toxic heavy metals is a worldwide environmental problem. Unlike organic pollutants, the majority of which are susceptibl
Externí odkaz:
https://doaj.org/article/f073dfec3ba4498786f093abf2d0a879
Autor:
Ayman Abdel Ghafar, Mohamed Abdelaty Habila, Zeid Abdullah Al Othman, Yacine Badjah Hadj Ahmed
Publikováno v:
Molecules, Vol 16, Iss 10, Pp 8919-8929 (2011)
The aim of the present study was to determine the content of capsaicin and dihydrocapsaicin in Capsicum samples collected from city markets in Riyadh (Saudi Arabia), calculate their pungency in Scoville heat units (SHU) and evaluate the average daily
Externí odkaz:
https://doaj.org/article/30cf868ffe264d81acbbd3f09d8f2057
Autor:
Kholood A. Dahlous, Zainab Almarhoon, Ahmed-Yacine Badjah-Hadj-Ahmed, Zeid A. AL Othman, Ayman El-Faham
Publikováno v:
Molecules, Vol 23, Iss 11, p 2976 (2018)
A novel series of s-triazines incorporating 4-hydroxybenzaldehyde and 4-hydroxy-3-methoxybenzaldehyde was prepared and fully characterized. The reaction was carried out via stepwise nucleophilic aromatic substitution of chlorine atoms in cyanuric chl
Externí odkaz:
https://doaj.org/article/209fa6d0e9b441bdbca2b4db8121df56
Autor:
Zeid A. Al Othman
Publikováno v:
Molecules, Vol 15, Iss 10, Pp 7482-7497 (2010)
This study was carried out to determine lead contamination in 104 of the representative food items in the Saudi diet and to estimate the dietary lead intake of Saudi Arabians. Three samples of each selected food items were purchased from the local ma
Externí odkaz:
https://doaj.org/article/799e3769a1974634be2303e9004f9e17
Publikováno v:
Molecules, Vol 15, Iss 5, Pp 3319-3328 (2010)
The two heteropolyacids H3PW12O40 and H3PMo12O40, and their homologous salts (NH4)3PW12O40, and (NH4)3PMo12O40 were prepared and tested in the cationic polymerization of styrene. The results showed that the heteropolytungstates were more reactive tha
Externí odkaz:
https://doaj.org/article/ca1bb6d886b8423985436e062e816b54
Publikováno v:
International Journal of Polymer Science, Vol 2015 (2015)
Polymerization of 1,2-cyclohexene oxide (CHO) in dichloromethane was catalyzed by 12-tungstophosphoric acid (H3PW12O40·13H2O) as a super solid acid. The effect of polymerization parameters such as reaction time, temperature, and catalyst amount was
Externí odkaz:
https://doaj.org/article/fdf58223d52144acb7f99c2584e2fb52