Scientific Journal for Damietta Faculty of Science最新文献_第9页

Trophic status of water and level of pollutants as measures of efficiency of water treatment regime at Kafr El-Shinawy drinking-water treatment plant, Damietta 达米埃塔Kafr El-Shinawy饮用水处理厂水处理效率的营养状况和污染物水平

Scientific Journal for Damietta Faculty of Science Pub Date : 2020-12-01 DOI: 10.21608/sjdfs.2020.195000

M. El-Adl, M. Deyab, F. Ward, Eman Omar

{"title":"Trophic status of water and level of pollutants as measures of efficiency of water treatment regime at Kafr El-Shinawy drinking-water treatment plant, Damietta","authors":"M. El-Adl, M. Deyab, F. Ward, Eman Omar","doi":"10.21608/sjdfs.2020.195000","DOIUrl":"https://doi.org/10.21608/sjdfs.2020.195000","url":null,"abstract":"This work aims to study the seasonal fluctuation in physicochemical characteristics, trophic status, and some chemical and biological pollutants influencing phytoplankton diversity, and water quality in raw and treated water at Kafr El-Shinawy drinking-water treatment plant, Damietta - Egypt seasonally during 2018. Phytoplankton distribution was affected by the trophic status of water, level of pollutants, and physicochemical treatment processes (coagulation, flocculation and sedimentation) of water. The predominance of phytoplankton species, especially Aphanizomenon flos aquae (Cyanophyta), Gomphosphaeria lacustris (Cyanophyta), Microcystis aeruginosa (Cyanophyta), Nostoc punctiforme (Cyanophyta), Oscillatoria limnetica (Cyanophyta), Pediastrum simplex (Chlorophyta), and Melosira granulata (Bacillariophyta) in treated water was much less than in raw water. Trihalomethanes (THMs) levels in treated waters were higher than in raw water. On the contrary, lower concentrations of heavy metals were recorded in treated water. Phytoplankton cells exhibited a bioaccumulation capacity for heavy metals especially Mn, Zn, and Fe in both raw and treated water. Intracellular levels of microcystins were lower (0.003 - 0.011µg L−1) whereas the extracellular levels were higher (1.00 – 2.01 µg L−1) in treated water than raw water, and the former recorded the highest level in raw water during summer (1.3 µg L−1). Hence, the levels of dissolved microcystins and THMs in treated water were higher than the allowable limit, especially during summer, the season of luxurious growth of Microcystis species.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88864210","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}

引用次数: 0

Shoreline Changes in Front of New Mansoura City 新曼苏拉市前的海岸线变化

Scientific Journal for Damietta Faculty of Science Pub Date : 2019-12-01 DOI: 10.21608/sjdfs.2019.194822

H. Aboelkhair, Atef A. Qaddah, M. Khalil, A. Rakha, Mona Esmail

引用次数: 0

Bahariya Reservoir Performance as Deduced from Well Logs Data Interpretation at East Bahariya Concession, Western Desert, Egypt 埃及西部沙漠East Bahariya特许权测井资料解释推断的Bahariya油藏动态

Scientific Journal for Damietta Faculty of Science Pub Date : 2019-12-01 DOI: 10.21608/sjdfs.2019.194819

A. Basal, M. Sarhan, M. Omran, Manar H. Mowafy

引用次数: 2

Role of Aquaporins in Salt Tolerance of Common Sunflower 水通道蛋白在普通向日葵耐盐性中的作用

Scientific Journal for Damietta Faculty of Science Pub Date : 2019-12-01 DOI: 10.21608/sjdfs.2019.194821

S. Hasan, S. Rabei, R. Nada, G. Abogadallah

{"title":"Role of Aquaporins in Salt Tolerance of Common Sunflower","authors":"S. Hasan, S. Rabei, R. Nada, G. Abogadallah","doi":"10.21608/sjdfs.2019.194821","DOIUrl":"https://doi.org/10.21608/sjdfs.2019.194821","url":null,"abstract":"The present work is addressed photosynthetic rate, growth rates and quantiﬁcation of aquaporin genes expression on sunflower plant to examine the expression and regulation profiles of some aquaporins, their role in regulating water transport during salt stress and their role in improving plant tolerance to stresses. The differential regulation of aquaporins might contribute to increased resistance/susceptibility to a specific stress, in a species-specific way. Aquaporins fine regulation helps plants maintain a positive water balance under detrimental environmental conditions. Both down- and up-regulation of aquaporin expression leading to changes in membrane permeability have been described and proposed to be beneficial for plants experiencing water deficit. Plants may decrease the water permeability of their cell membranes to avoid excessive loss of water from the root to the soil and / or aquaporins might play a role in stress avoidance by enhancing root water uptake, when the water potential gradient between soil and root xylem is still favorable. The contribution of both types of responses may depend on the plant species, the intensity and duration of the stress and aquaporin isoform. The salt tolerance is a complex trait but might be partly due to the expression of stress-inducible aquaporin isoforms. The plant shows different expression level of PIP1;5 , PIP2;1 , PIP2;3 , TIP1;1 as well as different water transport activity..","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75018396","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}

引用次数: 0

Synthesis, characterization and antimicrobial activity of chitosan/Ag nanocomposite using Escherichia coli D8 利用大肠杆菌D8制备壳聚糖/银纳米复合材料及其抗菌性能

Scientific Journal for Damietta Faculty of Science Pub Date : 2019-12-01 DOI: 10.21608/sjdfs.2019.194816

Z. Baka, M. Abou-Dobara, A. El-Sayed, M. El-Zahed

引用次数: 3

Bacteriological Investigation of S . Aureus in Urinary Tract Infection in South Port Said City S。南赛德港市尿路感染中的金黄色葡萄球菌

Scientific Journal for Damietta Faculty of Science Pub Date : 2018-12-01 DOI: 10.21608/sjdfs.2018.194808

A. Abdelaty, M. Zaki, A. Hanora, M. Bahgat

{"title":"Bacteriological Investigation of S . Aureus in Urinary Tract Infection in South Port Said City","authors":"A. Abdelaty, M. Zaki, A. Hanora, M. Bahgat","doi":"10.21608/sjdfs.2018.194808","DOIUrl":"https://doi.org/10.21608/sjdfs.2018.194808","url":null,"abstract":"UTI is characterized by the evidence of uropathogens and pyuria and is accompanied by various clinical manifestations depending on the area of involvement. The aim of this study was to isolate the bacterial infection to urinary tract infection in men and women at different ages and to investigate the susceptibility of bacteria implicated in urinary tract infection to different antimicrobial drugs (antibiotics).Also to determine minimum inhibitor concentration for resistant bacteria to antibiotic and molecular characterization of S. aureus associated . Materials and methods :One hundred urine specimens were received from patients admitted during January till December 2015. S. aureus isolates were confirmed by typical colonial morphology, and identified by differential tests as well as by the growth on characteristic agar, Susceptibility testing was carried out by disk diffusion method . Among the 100 isolates, 6 bacterial strain was isolated from the urine specimens of infected Patient admitted at Port-said area out-patient clinics, using agar medium and macCkonkey agar, This organism was characterized by biochemical tests and showed similarity with S. aureus . The genomic level confirmation done with 16S rDNA primer by submitting the genomic sequence to Gene Bank under acc.No-GU046545 after comparing, showed 98 % sequence similarity with S. aureus . Antibiotic susceptibility test revealed that Amikacin, Amoxicillin and Imepenem are the lowest resistant rate with percent of 100, 83 and 66%respectively and Ciprofloxacin showed the highest resistant rate with 84% . Pattern on antibiotic susceptibility test showed high resistant rate to some antibiotic that made it difficult for pregnant patients, although its frequency was low. The most prevalent Gram positive bacterial pathogen in Port-saed city was S. aureus and the most sensitive antibiotic against it is Amikacin.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75184322","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}

引用次数: 0

Environmental Assessment of Heavy Metal Pollution in Bottom Sediment of Eastern Alexandria Harbour, Egypt 埃及东亚历山大港底沉积物重金属污染环境评价

Scientific Journal for Damietta Faculty of Science Pub Date : 2018-12-01 DOI: 10.21608/sjdfs.2018.194787

Abdul Ghani A. Rashed, M. Ibrahim, M. El-Gammal, A. Z. Hamoda, Omnya A. El-Batrawy

{"title":"Environmental Assessment of Heavy Metal Pollution in Bottom Sediment of Eastern Alexandria Harbour, Egypt","authors":"Abdul Ghani A. Rashed, M. Ibrahim, M. El-Gammal, A. Z. Hamoda, Omnya A. El-Batrawy","doi":"10.21608/sjdfs.2018.194787","DOIUrl":"https://doi.org/10.21608/sjdfs.2018.194787","url":null,"abstract":"In this study, the concentrations of heavy metals were measured in the sediment of the Eastern Alexandria Harbour collected twice during 2016. The range and average concentrations measured in ppm were (ND–2775.93) (1592.59) for Fe and (13.90 235.73) (71.36) for Zn, (ND – 8.77) (3.93) for Ni and (6.35 42.99) (25.04) for Cr. For clarity, Enrichment factor index (EF) was used to determine the level of sediment contamination. The pollution load index (PLI) calculated for all the sediment samples that fall in the second terminology (1<CF<3, moderate contamination factor) except sample (10 and 12) that fall in the first terminology (CF<1, low contamination factor). Results of geoaccumulation index (Igeo) calculations in samples for the back ground values 100% of samples fall in class (0) for all the heavy metals (Fe, Mn, Ni and Cr). So, sediment is not enriched by these metals.while the results of geoaccumulation index (Igeo) calculations for Zn, it indicated that there is 91.4 % of the samples fall in class (0) unpolluted) with no polluting effect to the environment. While 8.3 % fall in class (1) (from unpolluted to moderately polluted). This was recorded at sample (8). It was recorded 0.31 that collected from the North-west of the harbour which is very active area. Sediment Quality Assessment, metal concentrations in the sediments of the samples was as high as above (ERM) values. All the samples fall in the range below (ERL) for both of Ni and Cr. And most of the samples fall in the range below (ERL) for Zn in (11) sample. While, sample (1) only fall in the range between(ERL and ERM) for Zn.The bottom sediments serve as a reservoir for heavy metals and therefore deserve special consideration in the planning and design of aquatic pollution research studies. .","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79299960","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}

引用次数: 0

Antibiotic Resistance of Uropathogenic Pseudomonas Aeruginosa 尿路致病性铜绿假单胞菌的抗生素耐药性

Scientific Journal for Damietta Faculty of Science Pub Date : 2018-12-01 DOI: 10.21608/sjdfs.2018.194805

M. Ibrahim, N. Radi, A. Al Azab

引用次数: 0

Thermodynamic Data for the Interaction of CuCl2 with Safranin (Saf) in KBr Solution at 19.1⁰C Using Glassy Carbon Electrode (CGE) 使用玻碳电极(CGE)在19.1℃的KBr溶液中CuCl2与Safranin (Saf)相互作用的热力学数据

Scientific Journal for Damietta Faculty of Science Pub Date : 2018-12-01 DOI: 10.21608/sjdfs.2018.194815

M. Diab, Adel ElSounbati, E. Gomaa, Gannat Abd Elraoof

引用次数: 0

Construction Rubble, Foundry Sand and Marble Waste Powder; as Raw Materials on Concrete Bricks Production 建筑碎石、铸造砂、大理石废粉;作为生产混凝土砖的原材料

Scientific Journal for Damietta Faculty of Science Pub Date : 2018-12-01 DOI: 10.21608/sjdfs.2018.194810

Maher El- Sockary, Amany F. Hasballah, Omnya A. El-Batrawy, A. Gharieb, M. El-Gammal

{"title":"Construction Rubble, Foundry Sand and Marble Waste Powder; as Raw Materials on Concrete Bricks Production","authors":"Maher El- Sockary, Amany F. Hasballah, Omnya A. El-Batrawy, A. Gharieb, M. El-Gammal","doi":"10.21608/sjdfs.2018.194810","DOIUrl":"https://doi.org/10.21608/sjdfs.2018.194810","url":null,"abstract":"The construction wastes is one of the environmental problem not only in Egypt but also in the whole world. The main objective of this paper to evaluated the fully replacing of natural aggregate (NA) by construction wastes (CW), full replace of natural sand (NS) by foundry sand (FS) and partially replaced of Portland cement (OPC) by marble fine waste (MFW) on the compressive strength was found out at 7, 28 days and 90 days and explained if these trials could be used in bricks manufacturing so Concrete cubes of size 150*150*150 mm were prepared in this paper with a different replacement ratio of Portland cement (PC) by marble fine waste (MFW) were 0%, 10%, 20%, 30% and 50% by weight of cement. Results show that the compressive strength by 0%,10% 20%, 30% and 50% at 7, and 28 days which the cement was replace ratio of marble fine waste (MFW) (140-141,92-91,90-86,82-80,and 73-76 kg/cm2) respectively. The compressive strength of sample 50% replacement gives compressive strength (73 – 76 kg/cm2) which consider as lowest compressive strength of these trials however it utilized maximum amount of marble dust which contributed to the elimination of the largest amount of wastes and also can be used successfully in the concrete bricks manufacturing as Egyptian standard No. 1292 and Egyptian code ECP 204 which give the compressive strength is 70 kg/cm2. The present study demostrated that, the mixture can used in brick manufacturing as shipper and green method to utilize the different waste and make new sustainability products.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85513590","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}

引用次数: 1