Pub Date : 2020-12-01DOI: 10.21608/sjdfs.2020.195000
M. El-Adl, M. Deyab, F. Ward, Eman Omar
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.
{"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}
Pub Date : 2019-12-01DOI: 10.21608/sjdfs.2019.194822
H. Aboelkhair, Atef A. Qaddah, M. Khalil, A. Rakha, Mona Esmail
The shoreline changes of the coastal zone at New Mansoura City which extends about 27km, have been studied using GIS technique based on RS data. The shoreline spatial and temporal changes in the interval time between years;1984 and 2018 has been estimated. The results show that the coast of New Mansoura City has been affected by morphological changes due to the shoreline accretion and erosion. The area has been subjected to increase in the accretion areas by nearly 2.34 km, however, the erosional areas reach about 0.195 km.The average rate of the shoreline accretion area was around 3.12 m/y, while the rate of the shoreline erosion area was -1.23m/y. Accordingly, the shoreline in the study area is mostly an accretion shoreline and the erosion areas are very limited and should be protected.
{"title":"Shoreline Changes in Front of New Mansoura City","authors":"H. Aboelkhair, Atef A. Qaddah, M. Khalil, A. Rakha, Mona Esmail","doi":"10.21608/sjdfs.2019.194822","DOIUrl":"https://doi.org/10.21608/sjdfs.2019.194822","url":null,"abstract":"The shoreline changes of the coastal zone at New Mansoura City which extends about 27km, have been studied using GIS technique based on RS data. The shoreline spatial and temporal changes in the interval time between years;1984 and 2018 has been estimated. The results show that the coast of New Mansoura City has been affected by morphological changes due to the shoreline accretion and erosion. The area has been subjected to increase in the accretion areas by nearly 2.34 km, however, the erosional areas reach about 0.195 km.The average rate of the shoreline accretion area was around 3.12 m/y, while the rate of the shoreline erosion area was -1.23m/y. Accordingly, the shoreline in the study area is mostly an accretion shoreline and the erosion areas are very limited and should be protected.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74039671","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 : 2019-12-01DOI: 10.21608/sjdfs.2019.194819
A. Basal, M. Sarhan, M. Omran, Manar H. Mowafy
The present work evaluates the sandstones of Bahariya Formation in East Bahariya Concession at the northern Western Desert. The analysis of the available well logs data for two wells (EBAH- D-1X and EBAH- E-1 X) drilled in the study area reflects good reservoir quality for oil production in specific zones within Bahariya Formation. The applied cutoff parameters in delineating these zone intervals are; Vsh<0.4, PHIE ⫺ 0.10, SW<0.5 and Calip-B.S.<+2 inch. Zones that passed all of these parameters together (i.e. reservoir zones) in EBAH- D-1X Well locate between depths; 6783 - 6786 ft, 6789 – 6796 ft, 6815 – 6823 ft, 6838 – 6860 ft and 6865 - 6900 ft. While in EBAH- E-1X Well the best reservoir intervals locate between depths; 6501 - 6506 ft, 6514 – 6528 ft, 6530 – 6536 ft, 6551 – 6560 ft, 6584 – 6586 ft and 6596 - 6614 ft.
{"title":"Bahariya Reservoir Performance as Deduced from Well Logs Data Interpretation at East Bahariya Concession, Western Desert, Egypt","authors":"A. Basal, M. Sarhan, M. Omran, Manar H. Mowafy","doi":"10.21608/sjdfs.2019.194819","DOIUrl":"https://doi.org/10.21608/sjdfs.2019.194819","url":null,"abstract":"The present work evaluates the sandstones of Bahariya Formation in East Bahariya Concession at the northern Western Desert. The analysis of the available well logs data for two wells (EBAH- D-1X and EBAH- E-1 X) drilled in the study area reflects good reservoir quality for oil production in specific zones within Bahariya Formation. The applied cutoff parameters in delineating these zone intervals are; Vsh<0.4, PHIE ⫺ 0.10, SW<0.5 and Calip-B.S.<+2 inch. Zones that passed all of these parameters together (i.e. reservoir zones) in EBAH- D-1X Well locate between depths; 6783 - 6786 ft, 6789 – 6796 ft, 6815 – 6823 ft, 6838 – 6860 ft and 6865 - 6900 ft. While in EBAH- E-1X Well the best reservoir intervals locate between depths; 6501 - 6506 ft, 6514 – 6528 ft, 6530 – 6536 ft, 6551 – 6560 ft, 6584 – 6586 ft and 6596 - 6614 ft.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78867531","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 : 2019-12-01DOI: 10.21608/sjdfs.2019.194821
S. Hasan, S. Rabei, R. Nada, G. Abogadallah
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..
{"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}
Pub Date : 2019-12-01DOI: 10.21608/sjdfs.2019.194816
Z. Baka, M. Abou-Dobara, A. El-Sayed, M. El-Zahed
The present study provided a green approach for chitosan/silver nanocomposite (CS/AgNC) synthesis. CS/AgNC were synthesized by a biological method using the supernatant of Escherichia coli D8 (MF062579) strain in the presence of sun light. The absorbance spectra of particle solutions have been characterized by UV-Vis spectrophotometry, Fourier transform-infrared (FT-IR) spectroscopy and transmission electron microscopy (TEM). The obtained CS/AgNC showed absorption peak at 446 nm with an average particle size of ~21-31 nm. Moreover, CS/AgNC showed a potent antimicrobial activity against Candida albicans , Staphylococcus aureus and E. coli .
{"title":"Synthesis, characterization and antimicrobial activity of chitosan/Ag nanocomposite using Escherichia coli D8","authors":"Z. Baka, M. Abou-Dobara, A. El-Sayed, M. El-Zahed","doi":"10.21608/sjdfs.2019.194816","DOIUrl":"https://doi.org/10.21608/sjdfs.2019.194816","url":null,"abstract":"The present study provided a green approach for chitosan/silver nanocomposite (CS/AgNC) synthesis. CS/AgNC were synthesized by a biological method using the supernatant of Escherichia coli D8 (MF062579) strain in the presence of sun light. The absorbance spectra of particle solutions have been characterized by UV-Vis spectrophotometry, Fourier transform-infrared (FT-IR) spectroscopy and transmission electron microscopy (TEM). The obtained CS/AgNC showed absorption peak at 446 nm with an average particle size of ~21-31 nm. Moreover, CS/AgNC showed a potent antimicrobial activity against Candida albicans , Staphylococcus aureus and E. coli .","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81522977","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 : 2018-12-01DOI: 10.21608/sjdfs.2018.194808
A. Abdelaty, M. Zaki, A. Hanora, M. Bahgat
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.
{"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}
Pub Date : 2018-12-01DOI: 10.21608/sjdfs.2018.194787
Abdul Ghani A. Rashed, M. Ibrahim, M. El-Gammal, A. Z. Hamoda, Omnya A. El-Batrawy
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
{"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}
Pub Date : 2018-12-01DOI: 10.21608/sjdfs.2018.194805
M. Ibrahim, N. Radi, A. Al Azab
Virulent and resistant strains Pseudomonas aeruginosa is one of the most important causes of UTIs in women. The present study was carried to investigate the frequency of virulence factors in the multi-drug resistant strains of P. aeruginosa isolated from women hospitalized due to the UTIs. One hundred urine samples were collected from women patients suffered from UTIs. Samples were cultured and those that were P. aeruginosa positive were analyzed for the presence of putative virulence genes. Sixty two of 100 samples (62/100%) were positive for P. aeruginosa. Monthly, sex and age-dependent prevalence were seen for P. aeruginosa. Bacterial strains had the highest levels of resistance against penicillin (26.6%), imipenem (26.6%) and Trimethoprim (26.6%). Of 62 P. aeruginosa isolates, 25 strains were resistant to more than 10 antibiotics (40.3%). Our findings should raise awareness about antibiotic resistance in hospitalized women with UTIs. Clinicians should exercise caution in prescribing antibiotics, especially in cases of UTIs.
{"title":"Antibiotic Resistance of Uropathogenic Pseudomonas Aeruginosa","authors":"M. Ibrahim, N. Radi, A. Al Azab","doi":"10.21608/sjdfs.2018.194805","DOIUrl":"https://doi.org/10.21608/sjdfs.2018.194805","url":null,"abstract":"Virulent and resistant strains Pseudomonas aeruginosa is one of the most important causes of UTIs in women. The present study was carried to investigate the frequency of virulence factors in the multi-drug resistant strains of P. aeruginosa isolated from women hospitalized due to the UTIs. One hundred urine samples were collected from women patients suffered from UTIs. Samples were cultured and those that were P. aeruginosa positive were analyzed for the presence of putative virulence genes. Sixty two of 100 samples (62/100%) were positive for P. aeruginosa. Monthly, sex and age-dependent prevalence were seen for P. aeruginosa. Bacterial strains had the highest levels of resistance against penicillin (26.6%), imipenem (26.6%) and Trimethoprim (26.6%). Of 62 P. aeruginosa isolates, 25 strains were resistant to more than 10 antibiotics (40.3%). Our findings should raise awareness about antibiotic resistance in hospitalized women with UTIs. Clinicians should exercise caution in prescribing antibiotics, especially in cases of UTIs.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82818994","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 : 2018-12-01DOI: 10.21608/sjdfs.2018.194815
M. Diab, Adel ElSounbati, E. Gomaa, Gannat Abd Elraoof
The reduction and oxidation mechanisms for copper chloride were studied in 0.1M KBr in absence and presence of safranin (Saf) at 19.1°C.The mechanism of oxidation and reduction was examined. The effect of scan rate for the redox reaction of CuCl2 in absence and presence of safranin (Saf) was carried oue to explain the type of reactions for this electrochemical process. Thermodynamic parameters such as stability constants and Gibbs free energies for the complex formation of the interaction of CuCl2 with safranin (Saf) were evaluated and discussed.
{"title":"Thermodynamic Data for the Interaction of CuCl2 with Safranin (Saf) in KBr Solution at 19.1⁰C Using Glassy Carbon Electrode (CGE)","authors":"M. Diab, Adel ElSounbati, E. Gomaa, Gannat Abd Elraoof","doi":"10.21608/sjdfs.2018.194815","DOIUrl":"https://doi.org/10.21608/sjdfs.2018.194815","url":null,"abstract":"The reduction and oxidation mechanisms for copper chloride were studied in 0.1M KBr in absence and presence of safranin (Saf) at 19.1°C.The mechanism of oxidation and reduction was examined. The effect of scan rate for the redox reaction of CuCl2 in absence and presence of safranin (Saf) was carried oue to explain the type of reactions for this electrochemical process. Thermodynamic parameters such as stability constants and Gibbs free energies for the complex formation of the interaction of CuCl2 with safranin (Saf) were evaluated and discussed.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77472008","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 : 2018-12-01DOI: 10.21608/sjdfs.2018.194810
Maher El- Sockary, Amany F. Hasballah, Omnya A. El-Batrawy, A. Gharieb, M. El-Gammal
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.
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