Pub Date : 2022-07-01DOI: 10.21608/djs.2022.135387.1022
Amal Zeatar, Inas Abou Elenaina, A. Zayed, Y. Mahmoud, M. Elkhawaga
The present study was searching for Actinomycetes isolates with antimicrobial activity from animals’ dung. Twenty-two Actinomycetes isolates were purified and nominated consistent with their culture features on starch nitrate agar medium. These purified isolates were surveyed for antimicrobial activity against different bacterial and fungal strains. Among all tested actinomycetes isolates, the isolate A12 had the highest antimicrobial activity. The A12 isolate's morphological, physiological, and biochemical data all pointed to it being a member of the Streptomyces genus. The 16S rRNA gene sequence and phylogenetic connection of strain A12 revealed that it belongs to the Streptomyces hypolithicus HSM#10. The optimum conditions of growth and antimicrobial activity were submerged cultivation, temperature 30 ᵒ C, pH 7 for 7 days. Starch and potassium nitrate as best carbon and nitrogen source respectively and1% (w/v) NaCl. Ethyl acetate was used to extract antimicrobial metabolites from the isolate A12, which were then examined using thin layer chromatography (TLC)
{"title":"Screening and Identification of Actinomycetes from animals’ dung for antimicrobial activity","authors":"Amal Zeatar, Inas Abou Elenaina, A. Zayed, Y. Mahmoud, M. Elkhawaga","doi":"10.21608/djs.2022.135387.1022","DOIUrl":"https://doi.org/10.21608/djs.2022.135387.1022","url":null,"abstract":"The present study was searching for Actinomycetes isolates with antimicrobial activity from animals’ dung. Twenty-two Actinomycetes isolates were purified and nominated consistent with their culture features on starch nitrate agar medium. These purified isolates were surveyed for antimicrobial activity against different bacterial and fungal strains. Among all tested actinomycetes isolates, the isolate A12 had the highest antimicrobial activity. The A12 isolate's morphological, physiological, and biochemical data all pointed to it being a member of the Streptomyces genus. The 16S rRNA gene sequence and phylogenetic connection of strain A12 revealed that it belongs to the Streptomyces hypolithicus HSM#10. The optimum conditions of growth and antimicrobial activity were submerged cultivation, temperature 30 ᵒ C, pH 7 for 7 days. Starch and potassium nitrate as best carbon and nitrogen source respectively and1% (w/v) NaCl. Ethyl acetate was used to extract antimicrobial metabolites from the isolate A12, which were then examined using thin layer chromatography (TLC)","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72761704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.21608/djs.2022.119730.1014
H. El-Kadi, Mohamed Musaad, A. Mohamed
{"title":"Conventional and Advanced Petrophysical Evaluation of Pliocene Sediments in Simian Field, Offshore Nile Delta, Egypt","authors":"H. El-Kadi, Mohamed Musaad, A. Mohamed","doi":"10.21608/djs.2022.119730.1014","DOIUrl":"https://doi.org/10.21608/djs.2022.119730.1014","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82276466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-08DOI: 10.21608/djs.2022.116175.1011
M. Nassar, M. Fathi, A. Othman, J. Matresu
{"title":"Integration of 3D seismic attributes and production history in revaluation of gas potential - Abu Madi and El Qaraa fields.","authors":"M. Nassar, M. Fathi, A. Othman, J. Matresu","doi":"10.21608/djs.2022.116175.1011","DOIUrl":"https://doi.org/10.21608/djs.2022.116175.1011","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"07 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85854082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-02-23DOI: 10.21608/djs.2022.116868.1013
S. Mohammadein
{"title":"Change of pressure in the circulation of peristaltic blood flow in a vertical Colic vein","authors":"S. Mohammadein","doi":"10.21608/djs.2022.116868.1013","DOIUrl":"https://doi.org/10.21608/djs.2022.116868.1013","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89246960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-24DOI: 10.21608/djs.2022.114256.1009
Somia Said, M. Faris, A. Zalat, A. Soliman
{"title":"Palynological studies on the Upper Cretaceous Wata and Matulla formations in Bakr Oil Field, Gulf of Suez, Egypt","authors":"Somia Said, M. Faris, A. Zalat, A. Soliman","doi":"10.21608/djs.2022.114256.1009","DOIUrl":"https://doi.org/10.21608/djs.2022.114256.1009","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"114 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87601592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-05DOI: 10.21608/djs.2021.110954.1007
M. Omar
{"title":"Seismic Interpretations and Petrophysical Evaluation of the Two Main Reservoirs in Abu Madi Formation, Level-2 and Level-3, Nidoco Field, Nile Delta, Egypt.","authors":"M. Omar","doi":"10.21608/djs.2021.110954.1007","DOIUrl":"https://doi.org/10.21608/djs.2021.110954.1007","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"195 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78147137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.21608/djs.2022.113181.1008
I. Othman, A. Abdeldayem, M. Soliman, G. El-Qady
Research Article GEOLOGY Petrophysical Evaluation Using Well Logging of the Alam El-Beuib Reservoirs, Shushan Basin, North Western Desert, Egypt I. Othman*, A. Abdeldayem, and M.R. Soliman, G. El-Qady 1 Geology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt 2 National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Egypt *Corresponding author: Ibrahim Othman E-mail addresses: ibrahim.othman@science .tanta.edu.eg Received: 26/12/2022 Accepted : 20/1/2022
研究论文:埃及舒山盆地Alam El-Beuib储层测井地质岩石物理评价I. Othman*， A. Abdeldayem, M.R. Soliman, G. El-Qady 1坦塔大学理学院地质系，坦塔31527 2埃及国家天文与地球物理研究所，Helwan *通讯作者:Ibrahim Othman E-mail地址:Ibrahim。othman@science .tanta.edu.eg收稿日期:26/12/2022收稿日期:20/1/2022
{"title":"Petrophysical Evaluation Using Well logging of the Alam El-Beuib Reservoirs, Shushan Basin, Northern Western Desert, Egypt","authors":"I. Othman, A. Abdeldayem, M. Soliman, G. El-Qady","doi":"10.21608/djs.2022.113181.1008","DOIUrl":"https://doi.org/10.21608/djs.2022.113181.1008","url":null,"abstract":"Research Article GEOLOGY Petrophysical Evaluation Using Well Logging of the Alam El-Beuib Reservoirs, Shushan Basin, North Western Desert, Egypt I. Othman*, A. Abdeldayem, and M.R. Soliman, G. El-Qady 1 Geology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt 2 National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Egypt *Corresponding author: Ibrahim Othman E-mail addresses: ibrahim.othman@science .tanta.edu.eg Received: 26/12/2022 Accepted : 20/1/2022","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"92 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78243667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-01DOI: 10.21608/djs.2021.211800
H. El-Kadi, Mohamed Ali, M. Omar
{"title":"Seismic Interpretations and Petrophysical Evaluation of the Two Main Reservoirs in Abu Madi Formation, Level-2 and Level-3, Nidoco Field, Nile Delta, Egypt","authors":"H. El-Kadi, Mohamed Ali, M. Omar","doi":"10.21608/djs.2021.211800","DOIUrl":"https://doi.org/10.21608/djs.2021.211800","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73471397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-01DOI: 10.21608/djs.2021.108698.1005
H. Harraz, M. Hamdy, Samira A. Aly, Samar Abdlla
Egypt Rodruin Prospecting Area (26 o 21 / 59 // N, 33 o 20 / 32 // E) in the Golden Triangle -Egypt, was exploited by the Ancient Egyptian Miners. They exploited gold from gossans and gossanous gold-bearing quartz veins. Rodruin deposit is hosted by altered and bleached deeply weathered volcanoclastic-metasedimentary and metavolcanic rocks, which underlain by argillaceous metasedimentary rocks. The characteristic "zinc ratio " [100 Zn/ (Zn + Pb)] can be used to distinguish the Rodruin ore deposit zones. In addition, the distribution mode of zinc ratio at Aladdin’s Hill is completely different than those from North Ridge, Central Valley and Central Buttress mining working zones. The former shows bimodal distribution, while the latter show single distribution. The zinc ratio of the Aladdin’s Hill zone is wide range (6.98-99.53%) with high standard deviation (> 31.85), Spiral Pit and GF-zones is narrow (86.11-99.97%) with very low standard deviations (< 3.83), while it moderately varies (27.27-99.30%) with low standard deviations (< 12.03) in North Ridge, Central Valley, Central Buttress, and South Ridge zones. The "tail" of high lead samples with zinc ratios below 70 may be the result of leaching of zinc from the sub-outcropping mineralization. Variations in the zinc ratio between the Rodruin ore zones indicate that the mineralizing solutions were zinc saturated and Pb-under saturated rather than the volcanic source rocks that were not lead-zinc rich.
{"title":"GENETIC AND EXPLORATION IMPLICATIONS OF THE ZINC RATIO [100 Zn/(Zn + Pb)] IN THE RODRUIN PROSPECTING AREA OF THE GOLDEN TRIANGLE -EGYPT","authors":"H. Harraz, M. Hamdy, Samira A. Aly, Samar Abdlla","doi":"10.21608/djs.2021.108698.1005","DOIUrl":"https://doi.org/10.21608/djs.2021.108698.1005","url":null,"abstract":"Egypt Rodruin Prospecting Area (26 o 21 / 59 // N, 33 o 20 / 32 // E) in the Golden Triangle -Egypt, was exploited by the Ancient Egyptian Miners. They exploited gold from gossans and gossanous gold-bearing quartz veins. Rodruin deposit is hosted by altered and bleached deeply weathered volcanoclastic-metasedimentary and metavolcanic rocks, which underlain by argillaceous metasedimentary rocks. The characteristic \"zinc ratio \" [100 Zn/ (Zn + Pb)] can be used to distinguish the Rodruin ore deposit zones. In addition, the distribution mode of zinc ratio at Aladdin’s Hill is completely different than those from North Ridge, Central Valley and Central Buttress mining working zones. The former shows bimodal distribution, while the latter show single distribution. The zinc ratio of the Aladdin’s Hill zone is wide range (6.98-99.53%) with high standard deviation (> 31.85), Spiral Pit and GF-zones is narrow (86.11-99.97%) with very low standard deviations (< 3.83), while it moderately varies (27.27-99.30%) with low standard deviations (< 12.03) in North Ridge, Central Valley, Central Buttress, and South Ridge zones. The \"tail\" of high lead samples with zinc ratios below 70 may be the result of leaching of zinc from the sub-outcropping mineralization. Variations in the zinc ratio between the Rodruin ore zones indicate that the mineralizing solutions were zinc saturated and Pb-under saturated rather than the volcanic source rocks that were not lead-zinc rich.","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"131 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86783838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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