Výsledky vyhledávání - "Gehan M. El Zokm"

Akademický článek

Nutritional, bioactive compounds content, and antioxidant activity of brown seaweeds from the Red Sea

Autor: Mona M. Ismail, Gehan M. El Zokm, José M. Miranda Lopez

Publikováno v: Frontiers in Nutrition, Vol 10 (2023)

IntroductionBrown seaweeds are excellent sources of bioactive molecules with a wide range of pharmacological effects, whose content can vary depending on several factors, including the origin and the environment in which the algae grow.MethodsThis st

Externí odkaz: https://doaj.org/article/10cdf2aa311e42d6b4d448606f9007a6

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Akademický článek

Combining multivariate statistical analysis to shed light on distribution and interaction of halogens in two economic ports along Red Sea Coast in Egypt

Autor: Gehan M. El Zokm, Ghada F. El-Said, Abeer A.M. El Sayed

Publikováno v: Oceanologia, Vol 64, Iss 1, Pp 103-116 (2022)

Mabahiss Bay and Safaga Bay are two important ports along the Red Sea coast of Egypt. The present study is the first to monitor halogen concentrations in these two ports. Certain halogens (F, Cl, Br and I) in coastal waters and sediments exhibited di

Externí odkaz: https://doaj.org/article/7137859704124bea8466fc7d1ca494a2

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Akademický článek

Critical geochemical insight into Alexandria coast with special reference to diagnostic ratios (TOC/TN & Sr/Ca) and heavy metals ecotoxicological hazards

Autor: Gehan M. El Zokm, Mohamed I.A. Ibrahim, Laila A. Mohamed, Mohamed El-Mamoney

Publikováno v: Egyptian Journal of Aquatic Research, Vol 46, Iss 1, Pp 27-33 (2020)

The current study was designed to gain deep insight into the geochemical nature as well as to assess the marine sediment quality of the Alexandria coast along the Mediterranean Sea. The geochemical analysis revealed that calcium carbonate is the pred

Externí odkaz: https://doaj.org/article/f59ea72847994bc4af29265bbbbe5f14

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Akademický článek

Anomalous Fluctuation of Halogens in Relation to the Pollution Status along Lake Mariout, Egypt

Autor: Ghada F. El-Said, Gehan M. El Zokm, Abeer A. El Sayed, Ahmed A. El Ashmawy, Mohamed A. Shreadah

Publikováno v: Journal of Chemistry, Vol 2020 (2020)

This paper aimed to study the anomalous fluctuation of halogens with respect to the pollution status in surface water (w), pore water (p), and sediments (s) of Lake Mariout. It provided a framework for understanding the distribution of dissolved and

Externí odkaz: https://doaj.org/article/46a9ddf0172f438f90322a302559925f

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Akademický článek

The uptake of Eriochrome Black T dye from aqueous solutions utilizing waste activated sludge: Adsorption process optimization using factorial design

Autor: Mohamed A. Aly-Eldeen, Abeer A.M. El-Sayed, Dalia M.S.A. Salem, Gehan M. El Zokm

Publikováno v: Egyptian Journal of Aquatic Research, Vol 44, Iss 3, Pp 179-186 (2018)

In the present study, the sorption of Eriochrome Black T dye from aqueous solution on waste sludge was investigated by employing the factorial design method. Currently, there are worldwide interests to using inexpensive and commercially available ads

Externí odkaz: https://doaj.org/article/13d21f7225ad43019363a4858e72c64d

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Akademický článek

A new record for aliphatic and polycyclic aromatic hydrocarbon accumulation in the surficial sediments of El Mex Bay, Alexandria, Egypt after 19 years from the first one

Autor: Laila A. Mohamed, Gehan M. El Zokm, Kamal Z. El Deeb, Mohamed A. Okbah

Publikováno v: Egyptian Journal of Aquatic Research, Vol 42, Iss 4, Pp 375-383 (2016)

Petroleum hydrocarbons were identified and quantified in the surficial sediments of El-Mex Bay, Alexandria during 2013 and 2014. The results were compared with a previous study in 1995. Contamination by aliphatic hydrocarbons in the sediments of the

Externí odkaz: https://doaj.org/article/e7f9bc78cfc34e62ae9119c529b6cde6

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Green synthesis of nanostructured zinc oxide by Ocimum tenuiflorum extract: characterization, adsorption modeling, cytotoxic screening, and metal ions adsorption applications

Autor: Rehab M. I. Elsamra, Mamdouh S. Masoud, Alyaa A. Zidan, Gehan M. El Zokm, Mohamed A. Okbah

Publikováno v: Biomass Conversion and Biorefinery.

Nano-ZnO was synthesized by the reduction of Zn (CH3COO)2.2H2O salt using the extract of Ocimum tenuiflorum leaves. The generated ZnO NPs were characterized by FT-IR, XRD, SEM, and EDX techniques. FT-IR results approved the characteristic peaks, the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9188e92a7fa5fb036ee6e6fa561e57e
https://doi.org/10.1007/s13399-022-03709-1

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Phosphorus geochemical forms and potential bioavailability in surface sediments from Edku Lagoon, Egypt, regarding diagnostic ratios (Fe:P, S:Fe, and OC:OP)

Autor: Gehan M. El Zokm, Ghada F. El-Said, Mona Kh. Khalil, Mohamed A. Okbah

Publikováno v: Journal of Soils and Sediments. 21:3917-3932

Sediments play an important role in the nutrient dynamics of shallow lakes. In this work, the geochemical characterization of phosphorus (P) in the surface sediments of Edku Lagoon, Egypt, was studied in Spring 2019. Spatial variation, geochemical fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d0648df44e05eab71c53fe30a4b9fb6f
https://doi.org/10.1007/s11368-021-03056-0

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Integrated approaches to assess water quality in two spots along the western Mediterranean Sea, Egypt

Autor: Gehan M. El Zokm, Mohamed A. Okbah, Essam Khamis El-Shorbagi

Publikováno v: Chemistry and Ecology. :1-22

This study aimed to assess the status of seawater quality in the Western Mediterranean Sea, Egypt. The measurement of seawater quality was carried out at two regions, namely El Dekhila harbour and ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fcff08f2401afb1ce525866785c5f41e
https://doi.org/10.1080/02757540.2021.1892657

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A comparative study, distribution, predicted no-effect concentration (PNEC) and contamination assessment of phenol with heavy metal contents in two coastal areas on the Egyptian Mediterranean Sea coast

Autor: Gehan M. El Zokm, Ghada F. El-Said, Ahmed A. El Ashmawy

Publikováno v: Marine environmental research. 179

This study comparing the expected pollution status of phenol along with heavy metals in sediments of two economic regions on the Mediterranean Sea coast using equilibrium partitioning method (EPM) as well as exposure of fishermen and populations to t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d547e6305b886b13d085d92c7ddff738
https://pubmed.ncbi.nlm.nih.gov/35752034

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