The purpose of this paper is to describe the challenges of elite interviewing and identify key factors that ensure success for qualitative researchers. The authors draw on their own experiences of interviewing powerfu...The purpose of this paper is to describe the challenges of elite interviewing and identify key factors that ensure success for qualitative researchers. The authors draw on their own experiences of interviewing powerful and influential members of government and various professions as well as tips from experienced researchers from the fields of social sciences and health. They identify five essential steps to successful interviewing： （1） identifying the key informants; （2） negotiating access; （3） background research and preparation; （4） site selection, presentation questioning approach, and execution; and （5） follow-up. Each of them is discussed in detail. The authors argue that the most important quality for the elite interviewer is self-management which involves developing an individual style of interviewing that is responsive to setbacks and unexpected opportunities展开更多
Objective:To investigate the feasibility of a finite element model as an ideal research tool for human maxillofacial gunshot wounds.Methods:Mandible CT scan data on the Chinese Visible Human were imported into MIMICS ...Objective:To investigate the feasibility of a finite element model as an ideal research tool for human maxillofacial gunshot wounds.Methods:Mandible CT scan data on the Chinese Visible Human were imported into MIMICS software to obtain the surface mesh of the mandible.Then,these surface-meshed models were imported into ANSA software for automatic net generation.Elements and nodes were partitioned on the basis of the mesh to obtain a three-dimensional finite element model for the mandible with every internal parameter consistent with those of our previously developed model in the pig mandible.The finite element model was imported into LS-DYNA for computation.Finally,the LS-POST was used to complete the simulation and the measurements.Results:A three-dimensional finite element model was successfully established for gunshot wounds in the human mandible.The stress distribution and the degree of injury were simulated dynamically for shots from two types of projectiles in the mandible at one entry angle and at three impact velocities.Conclusion:Three-dimensional finite element models will become ideal research tools for treatment of ballistic wounds of the human maxillofacial region.Using this human mandibular model as a foundation,we will be able to successfully develop three-dimensional finite element models for human maxillofacial gunshot wounds.展开更多
文摘The purpose of this paper is to describe the challenges of elite interviewing and identify key factors that ensure success for qualitative researchers. The authors draw on their own experiences of interviewing powerful and influential members of government and various professions as well as tips from experienced researchers from the fields of social sciences and health. They identify five essential steps to successful interviewing： （1） identifying the key informants; （2） negotiating access; （3） background research and preparation; （4） site selection, presentation questioning approach, and execution; and （5） follow-up. Each of them is discussed in detail. The authors argue that the most important quality for the elite interviewer is self-management which involves developing an individual style of interviewing that is responsive to setbacks and unexpected opportunities
文摘Objective:To investigate the feasibility of a finite element model as an ideal research tool for human maxillofacial gunshot wounds.Methods:Mandible CT scan data on the Chinese Visible Human were imported into MIMICS software to obtain the surface mesh of the mandible.Then,these surface-meshed models were imported into ANSA software for automatic net generation.Elements and nodes were partitioned on the basis of the mesh to obtain a three-dimensional finite element model for the mandible with every internal parameter consistent with those of our previously developed model in the pig mandible.The finite element model was imported into LS-DYNA for computation.Finally,the LS-POST was used to complete the simulation and the measurements.Results:A three-dimensional finite element model was successfully established for gunshot wounds in the human mandible.The stress distribution and the degree of injury were simulated dynamically for shots from two types of projectiles in the mandible at one entry angle and at three impact velocities.Conclusion:Three-dimensional finite element models will become ideal research tools for treatment of ballistic wounds of the human maxillofacial region.Using this human mandibular model as a foundation,we will be able to successfully develop three-dimensional finite element models for human maxillofacial gunshot wounds.
