This study introduces an innovative approach to optimize cloud computing job distribution using the Improved Dynamic Johnson Sequencing Algorithm(DJS).Emphasizing on-demand resource sharing,typical to Cloud Service Pr...This study introduces an innovative approach to optimize cloud computing job distribution using the Improved Dynamic Johnson Sequencing Algorithm(DJS).Emphasizing on-demand resource sharing,typical to Cloud Service Providers(CSPs),the research focuses on minimizing job completion delays through efficient task allocation.Utilizing Johnson’s rule from operations research,the study addresses the challenge of resource availability post-task completion.It advocates for queuing models with multiple servers and finite capacity to improve job scheduling models,subsequently reducing wait times and queue lengths.The Dynamic Johnson Sequencing Algorithm and the M/M/c/K queuing model are applied to optimize task sequences,showcasing their efficacy through comparative analysis.The research evaluates the impact of makespan calculation on data file transfer times and assesses vital performance indicators,ultimately positioning the proposed technique as superior to existing approaches,offering a robust framework for enhanced task scheduling and resource allocation in cloud computing.展开更多
OBJECTIVE: To investigate the use of Aloe vera(A.vera) for the treatment of gastroesophageal reflux disease(GERD) symptoms and compare its effects with those of omeprazole and ranitidine.METHODS: In this pilot, random...OBJECTIVE: To investigate the use of Aloe vera(A.vera) for the treatment of gastroesophageal reflux disease(GERD) symptoms and compare its effects with those of omeprazole and ranitidine.METHODS: In this pilot, randomized controlled trial, 79 subjects were allocated to A. vera syrup(standardized to 5.0 mg polysaccharide per m L of syrup)at a dose of 10 m L/d, omeprazole capsule(20 g/d)or ranitidine tablet(150 mg in a fasted state in the morning and 150 mg 30 min before sleep at night)for a period of 4 weeks. The frequencies of eight main symptoms of GERD(heartburn, food regurgitation, flatulence, belching, dysphagia, nausea,vomiting and acid regurgitation) were assessed at weeks 2 and 4 of the trial.RESULTS: A. vera was safe and well tolerated and reduced the frequencies of all the assessed GERD symptoms, with no adverse events requiring withdrawal.CONCLUSION: A. vera may provide a safe and effective treatment for reducing the symptoms of GERD.展开更多
1 SOLO分类评价理论概述
SOLO（structure of the observed learning out—come，意为可观测学习结果的结构）分类评价理论是澳大利亚教育心理学家比格斯（J．B．Biggs）首创。它使教育评价的触角深入到质的层面，是对学习者在进行学...1 SOLO分类评价理论概述
SOLO（structure of the observed learning out—come，意为可观测学习结果的结构）分类评价理论是澳大利亚教育心理学家比格斯（J．B．Biggs）首创。它使教育评价的触角深入到质的层面，是对学习者在进行学习活动中所产生的一系列表现的描绘，它提供了一个有条理的层级式分类方式，即一个学习者在掌握学习任务时对任务复杂性理解的增长变化。展开更多
1.There were 16 students on the playground,and another 14 come to the playground now.How many groups can these students be divided into when playing games in groups of 5?
古希腊哲学家亚里斯多德曾经对城市作了如下的描述：“人们为了安全，来到城市；为了美好的生活，聚居于城市。”（Man come together in cities for security; stay together for the good life）在人类的社会发展中，伴随着农业、工...古希腊哲学家亚里斯多德曾经对城市作了如下的描述：“人们为了安全，来到城市；为了美好的生活，聚居于城市。”（Man come together in cities for security; stay together for the good life）在人类的社会发展中，伴随着农业、工业、交通运输业以及第三产业的发展，城市的范围和数量不断扩大和增多，城市人口不断集聚，城市化成为自工业革命以来人类社会发展的重要特征之一。据联合国环境署预测，到2030年，全球城市人口将占总人口数的60％以上，人口超千万的城市将超过20个。展开更多
基金funded by Princess Nourah bint Abdulrahman University Researchers Supporting Project(No.PNURSP2023R97)Princess Nourah bint Abdulrahman University,Riyadh,Saudi Arabia.
文摘This study introduces an innovative approach to optimize cloud computing job distribution using the Improved Dynamic Johnson Sequencing Algorithm(DJS).Emphasizing on-demand resource sharing,typical to Cloud Service Providers(CSPs),the research focuses on minimizing job completion delays through efficient task allocation.Utilizing Johnson’s rule from operations research,the study addresses the challenge of resource availability post-task completion.It advocates for queuing models with multiple servers and finite capacity to improve job scheduling models,subsequently reducing wait times and queue lengths.The Dynamic Johnson Sequencing Algorithm and the M/M/c/K queuing model are applied to optimize task sequences,showcasing their efficacy through comparative analysis.The research evaluates the impact of makespan calculation on data file transfer times and assesses vital performance indicators,ultimately positioning the proposed technique as superior to existing approaches,offering a robust framework for enhanced task scheduling and resource allocation in cloud computing.
基金Supported by the Clinical Trial Research CenterTehranIran
文摘OBJECTIVE: To investigate the use of Aloe vera(A.vera) for the treatment of gastroesophageal reflux disease(GERD) symptoms and compare its effects with those of omeprazole and ranitidine.METHODS: In this pilot, randomized controlled trial, 79 subjects were allocated to A. vera syrup(standardized to 5.0 mg polysaccharide per m L of syrup)at a dose of 10 m L/d, omeprazole capsule(20 g/d)or ranitidine tablet(150 mg in a fasted state in the morning and 150 mg 30 min before sleep at night)for a period of 4 weeks. The frequencies of eight main symptoms of GERD(heartburn, food regurgitation, flatulence, belching, dysphagia, nausea,vomiting and acid regurgitation) were assessed at weeks 2 and 4 of the trial.RESULTS: A. vera was safe and well tolerated and reduced the frequencies of all the assessed GERD symptoms, with no adverse events requiring withdrawal.CONCLUSION: A. vera may provide a safe and effective treatment for reducing the symptoms of GERD.
文摘1 SOLO分类评价理论概述
SOLO（structure of the observed learning out—come，意为可观测学习结果的结构）分类评价理论是澳大利亚教育心理学家比格斯（J．B．Biggs）首创。它使教育评价的触角深入到质的层面，是对学习者在进行学习活动中所产生的一系列表现的描绘，它提供了一个有条理的层级式分类方式，即一个学习者在掌握学习任务时对任务复杂性理解的增长变化。
文摘1.There were 16 students on the playground,and another 14 come to the playground now.How many groups can these students be divided into when playing games in groups of 5?
文摘古希腊哲学家亚里斯多德曾经对城市作了如下的描述：“人们为了安全，来到城市；为了美好的生活，聚居于城市。”（Man come together in cities for security; stay together for the good life）在人类的社会发展中，伴随着农业、工业、交通运输业以及第三产业的发展，城市的范围和数量不断扩大和增多，城市人口不断集聚，城市化成为自工业革命以来人类社会发展的重要特征之一。据联合国环境署预测，到2030年，全球城市人口将占总人口数的60％以上，人口超千万的城市将超过20个。
