Asmaa A . Soliman - Academia.edu (original) (raw)
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Papers by Asmaa A . Soliman
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING AND TECHNOLOGY (IJCIET), 2021
Reworks due to activities overlapping have both direct and indirect effects on the performance of... more Reworks due to activities overlapping have both direct and indirect effects on the performance of construction projects. To reduce the impact of reworks there is a need to understand their basic reason for their existence. This paper aims to identify the top changes that affecting upstream production rate and causing reworks in downstream activities. These changes were identified through three stages. The first stage 23 changes were collected from a past literature review and were divided into three major categories: designer, contractor, and owner changes. 100 effective interviews were conducted and their results are employed. In the second stage, the 23 changes were then ranked from the most significant to the less significant. The third stage, the 80/20 rule applied to the changes identified to get the eight top important changes. The result shows the top important eight factors are Lack of coordination and poor communication, The contractor instruction to modify a design, Non-compliance with the specification, The owner instruction to modify a design, Incomplete design at the time of tender, Poor planning and coordination of resources, Errors made in the contract documentation and Lack of experience and knowledge of the design and construction process.
Journal of infection and public health, Jan 28, 2017
Health care-associated infections (HAIs) threaten patient's safety worldwide especially in th... more Health care-associated infections (HAIs) threaten patient's safety worldwide especially in the intensive care units (ICU). In end-stage liver disease (ESLD), the condition is much more complicated. Data regarding HAIs among ESLD patients is lacking. We aimed to assess the incidence of HAIs, risk factors, causative micro-organisms, antimicrobial susceptibilities and mortality rates among patients with end-stage liver disease (ESLD) admitted to pre-transplant liver intensive care unit (LICU). This prospective observational study included 337 ESLD patients admitted to LICU, Al-Rajhi liver center, Assiut University Hospital, Assiut, Egypt between January 2016 and June 2016 and they were followed up for the development of HAI manifestations. The medical history, physical examination and severity of underlying disease were determined. Clinical samples were taken from patients who developed HAIs for microbiological diagnosis and antimicrobial susceptibility testing. A total of 57 (16.9...
American Journal of Civil Engineering and Architecture
Overlapping (or fast tracking) is a schedule compression technique in which phases or activities ... more Overlapping (or fast tracking) is a schedule compression technique in which phases or activities normally performed in sequence are performed in parallel, PMI, [1]. Rework has both direct and indirect effects on the performance of construction projects. The direct effect of the impact of rework are: additional time for rework, additional costs of rework, additional materials spent on rework and control next waste, additional labor for rework, difficulty of managing resources. To reduce the impact of reworks there is a need to understand their basic reason for their existence or set of conditions that stimulate their occurrence in a building process. This paper aims to identify the top important changes that affecting upstream production rate and causing reworks in downstream activities. These changes were identified through three stages. The first stage twenty three changes which causing reworks in downstream activities were collected from past literature review and were divided into three major categories: designer, contractor and owner changes. One hundred effective interviews were conducted and their results are employed. The second stage, the twenty three changes were then ranked from the most significant to the less significant. The third stage, the 80/20 rule applied to the changes identified to get the eight most important changes that represented about 25% of the causes. The result shows the top important eight factors which were considered as the factors affecting upstream production rate and causing reworks in downstream activities as follows: 1) Lack of coordination and poor communication, 2) The contractor instruction to modify a design, 3) Non-compliance with specification, 4) The owner instruction to modify a design, 5) Incomplete design at the time of tender, 6) Poor planning and coordination of resources, 7) Errors made in the contract documentation and 8) Lack of experience and knowledge of the design and construction process.
Sustainability
One of the most vital construction project aspects is to complete a project in minimum time restr... more One of the most vital construction project aspects is to complete a project in minimum time restricted to the time–cost trade-off. Overlapping activities’ planning and their impact on the project under limited resource constraints should be considered. This study aims to develop a model for optimizing the project schedule and cost regarding overlap activities and their impacts. This study reviews previous studies on changes in past activities likely to produce additional reworking of subsequent activities. In addition, an AHP model is developed to assess the reworking time of subsequent activities based on possible changes in previous activities. In addition, five realistic construction projects are applied. Finally, an optimizing model is developed for optimizing project time and cost using overlapping techniques by using the Java program. The results indicate that the proposed model can be used by project managers easily for solving time and cost optimization problems. In addition...
American Journal of Civil Engineering and Architecture, 2014
Reducing construction disputes appears to be the main goal for many researchers in the last decay... more Reducing construction disputes appears to be the main goal for many researchers in the last decay. Each of them has attempted to clearly identify the expected causes of disputes. Construction claims can be considered as a main source of disputes. This paper aims to identify the most important causes that converting construction claims into disputes. A proposed system that can help to avoid converting construction claims into disputes was provided. Factors that causing disputable claims were identified through four stages. The first stage 140 factors that causing disputable claims were collected from international literature. The second stage a brainstorming was used to reduce the number of these factors and get the most common factors causing disputable claims. Hence 31 factors were only considered. These factors were divided into three major categories: behavioral, contractual and operational matters. Through third stage, the thirty one factors were subjected to a further survey to identify their importance index (relative significance). One hundred and two interviews were conducted and their results are employed to develop an importance index score for these disputable claims causes. Furthermore, the thirty one disputable claims causes were then ranked according to their relative importance. The fourth stage, The 80/20 rule applied to the causes identified to get the eight most important causes that represented about 25% of the causes. The most important eight factors were considered as the factors that converting claims into disputes which identified as follows: 1) delay interim payment from client, 2) qualification of team work, 3) extension of time, 4) incomplete drawings and specification, 5) Poorly written contracts clauses, 6) change orders, 7) cooperation and communication nature among project team, 8) late supply of equipment and materials. A proposed system for avoiding converting claims into disputes was presented. Furthermore, a checklist was designed during construction stage and four actual case studies were considered and discussed.
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING AND TECHNOLOGY (IJCIET), 2021
Reworks due to activities overlapping have both direct and indirect effects on the performance of... more Reworks due to activities overlapping have both direct and indirect effects on the performance of construction projects. To reduce the impact of reworks there is a need to understand their basic reason for their existence. This paper aims to identify the top changes that affecting upstream production rate and causing reworks in downstream activities. These changes were identified through three stages. The first stage 23 changes were collected from a past literature review and were divided into three major categories: designer, contractor, and owner changes. 100 effective interviews were conducted and their results are employed. In the second stage, the 23 changes were then ranked from the most significant to the less significant. The third stage, the 80/20 rule applied to the changes identified to get the eight top important changes. The result shows the top important eight factors are Lack of coordination and poor communication, The contractor instruction to modify a design, Non-compliance with the specification, The owner instruction to modify a design, Incomplete design at the time of tender, Poor planning and coordination of resources, Errors made in the contract documentation and Lack of experience and knowledge of the design and construction process.
Journal of infection and public health, Jan 28, 2017
Health care-associated infections (HAIs) threaten patient's safety worldwide especially in th... more Health care-associated infections (HAIs) threaten patient's safety worldwide especially in the intensive care units (ICU). In end-stage liver disease (ESLD), the condition is much more complicated. Data regarding HAIs among ESLD patients is lacking. We aimed to assess the incidence of HAIs, risk factors, causative micro-organisms, antimicrobial susceptibilities and mortality rates among patients with end-stage liver disease (ESLD) admitted to pre-transplant liver intensive care unit (LICU). This prospective observational study included 337 ESLD patients admitted to LICU, Al-Rajhi liver center, Assiut University Hospital, Assiut, Egypt between January 2016 and June 2016 and they were followed up for the development of HAI manifestations. The medical history, physical examination and severity of underlying disease were determined. Clinical samples were taken from patients who developed HAIs for microbiological diagnosis and antimicrobial susceptibility testing. A total of 57 (16.9...
American Journal of Civil Engineering and Architecture
Overlapping (or fast tracking) is a schedule compression technique in which phases or activities ... more Overlapping (or fast tracking) is a schedule compression technique in which phases or activities normally performed in sequence are performed in parallel, PMI, [1]. Rework has both direct and indirect effects on the performance of construction projects. The direct effect of the impact of rework are: additional time for rework, additional costs of rework, additional materials spent on rework and control next waste, additional labor for rework, difficulty of managing resources. To reduce the impact of reworks there is a need to understand their basic reason for their existence or set of conditions that stimulate their occurrence in a building process. This paper aims to identify the top important changes that affecting upstream production rate and causing reworks in downstream activities. These changes were identified through three stages. The first stage twenty three changes which causing reworks in downstream activities were collected from past literature review and were divided into three major categories: designer, contractor and owner changes. One hundred effective interviews were conducted and their results are employed. The second stage, the twenty three changes were then ranked from the most significant to the less significant. The third stage, the 80/20 rule applied to the changes identified to get the eight most important changes that represented about 25% of the causes. The result shows the top important eight factors which were considered as the factors affecting upstream production rate and causing reworks in downstream activities as follows: 1) Lack of coordination and poor communication, 2) The contractor instruction to modify a design, 3) Non-compliance with specification, 4) The owner instruction to modify a design, 5) Incomplete design at the time of tender, 6) Poor planning and coordination of resources, 7) Errors made in the contract documentation and 8) Lack of experience and knowledge of the design and construction process.
Sustainability
One of the most vital construction project aspects is to complete a project in minimum time restr... more One of the most vital construction project aspects is to complete a project in minimum time restricted to the time–cost trade-off. Overlapping activities’ planning and their impact on the project under limited resource constraints should be considered. This study aims to develop a model for optimizing the project schedule and cost regarding overlap activities and their impacts. This study reviews previous studies on changes in past activities likely to produce additional reworking of subsequent activities. In addition, an AHP model is developed to assess the reworking time of subsequent activities based on possible changes in previous activities. In addition, five realistic construction projects are applied. Finally, an optimizing model is developed for optimizing project time and cost using overlapping techniques by using the Java program. The results indicate that the proposed model can be used by project managers easily for solving time and cost optimization problems. In addition...
American Journal of Civil Engineering and Architecture, 2014
Reducing construction disputes appears to be the main goal for many researchers in the last decay... more Reducing construction disputes appears to be the main goal for many researchers in the last decay. Each of them has attempted to clearly identify the expected causes of disputes. Construction claims can be considered as a main source of disputes. This paper aims to identify the most important causes that converting construction claims into disputes. A proposed system that can help to avoid converting construction claims into disputes was provided. Factors that causing disputable claims were identified through four stages. The first stage 140 factors that causing disputable claims were collected from international literature. The second stage a brainstorming was used to reduce the number of these factors and get the most common factors causing disputable claims. Hence 31 factors were only considered. These factors were divided into three major categories: behavioral, contractual and operational matters. Through third stage, the thirty one factors were subjected to a further survey to identify their importance index (relative significance). One hundred and two interviews were conducted and their results are employed to develop an importance index score for these disputable claims causes. Furthermore, the thirty one disputable claims causes were then ranked according to their relative importance. The fourth stage, The 80/20 rule applied to the causes identified to get the eight most important causes that represented about 25% of the causes. The most important eight factors were considered as the factors that converting claims into disputes which identified as follows: 1) delay interim payment from client, 2) qualification of team work, 3) extension of time, 4) incomplete drawings and specification, 5) Poorly written contracts clauses, 6) change orders, 7) cooperation and communication nature among project team, 8) late supply of equipment and materials. A proposed system for avoiding converting claims into disputes was presented. Furthermore, a checklist was designed during construction stage and four actual case studies were considered and discussed.