This paper presents a V-model of e-learning using the well-known Gagne nine steps for quality education. Our suggested model is based on our experience at the computer engineering departments at AL-Hussein Bin Talal U...This paper presents a V-model of e-learning using the well-known Gagne nine steps for quality education. Our suggested model is based on our experience at the computer engineering departments at AL-Hussein Bin Talal University, the University of Jordan and Albalqa Applied University. We applied the recommendations of the nine steps methodology to the e-learning environment. The V model suggested in this paper came up as a result of such application. Although this V model can be subject to some tuning and development in the future it proved to be highly efficient and easy to implement for the teacher and the student.展开更多
Objective:To isolate and identify Bacillus subtilis(B.subtilis)from soil and to characterize and partially purify the bacteriocin.To evaluate the antimicrobial activity against four diabetic foot ulcer bacterial patho...Objective:To isolate and identify Bacillus subtilis(B.subtilis)from soil and to characterize and partially purify the bacteriocin.To evaluate the antimicrobial activity against four diabetic foot ulcer bacterial pathogens.Methods:Genotypic identification was done based on Sergey's manual of systemic bacteriology.Antimicrobial susceptibility test was done by Kirby-Bauer disc diffusion method.Colonies were identified by colony morphology and biochemical characterization and also compared with MTCC 121 strain.Further identification was done by 16S rRNA sequencing.Inhibitory activities of partially purified bacteriocin on all the DFU isolates were done by agar well diffusion method.The strain was identified to produce bacteriocin by stab overlay assay.Bacteriocin was extracted by organic solvent extraction using chloroform,further purified by HPI.C and physical,and chemical characterization was performed.Results:The four isolates showed high level of resistance to amoxyclav and sensitivity to ciprofloxacin.HPLC purification revealed that the extracts are bacteriocin.The phylogenetic tree analysis results showed that the isolate was 99%related to B.subtilis BSF01.The results reveled activity to all the four isolates and high level of activity was seen in case of Klebsiella sp.Conclusions:Partially purified bacteriocin was found to have antimicrobial activity against the four diabetic foot ulcer bacterial pathogens,which can thus be applied as a better drug molecule on further studies.The strain B.subtilis are found to be safe for use and these antimicrobial peptides can be used as an antimicrobial in humans to treat DFU bacterial pathogens.展开更多
文摘This paper presents a V-model of e-learning using the well-known Gagne nine steps for quality education. Our suggested model is based on our experience at the computer engineering departments at AL-Hussein Bin Talal University, the University of Jordan and Albalqa Applied University. We applied the recommendations of the nine steps methodology to the e-learning environment. The V model suggested in this paper came up as a result of such application. Although this V model can be subject to some tuning and development in the future it proved to be highly efficient and easy to implement for the teacher and the student.
文摘Objective:To isolate and identify Bacillus subtilis(B.subtilis)from soil and to characterize and partially purify the bacteriocin.To evaluate the antimicrobial activity against four diabetic foot ulcer bacterial pathogens.Methods:Genotypic identification was done based on Sergey's manual of systemic bacteriology.Antimicrobial susceptibility test was done by Kirby-Bauer disc diffusion method.Colonies were identified by colony morphology and biochemical characterization and also compared with MTCC 121 strain.Further identification was done by 16S rRNA sequencing.Inhibitory activities of partially purified bacteriocin on all the DFU isolates were done by agar well diffusion method.The strain was identified to produce bacteriocin by stab overlay assay.Bacteriocin was extracted by organic solvent extraction using chloroform,further purified by HPI.C and physical,and chemical characterization was performed.Results:The four isolates showed high level of resistance to amoxyclav and sensitivity to ciprofloxacin.HPLC purification revealed that the extracts are bacteriocin.The phylogenetic tree analysis results showed that the isolate was 99%related to B.subtilis BSF01.The results reveled activity to all the four isolates and high level of activity was seen in case of Klebsiella sp.Conclusions:Partially purified bacteriocin was found to have antimicrobial activity against the four diabetic foot ulcer bacterial pathogens,which can thus be applied as a better drug molecule on further studies.The strain B.subtilis are found to be safe for use and these antimicrobial peptides can be used as an antimicrobial in humans to treat DFU bacterial pathogens.
