EFL preservice teachers ’ research efficacy, as perceived competence to perform tasks in research, is crucial to their research engagement. This autobiographical narrative inquiry investigates the contribution of sca...EFL preservice teachers ’ research efficacy, as perceived competence to perform tasks in research, is crucial to their research engagement. This autobiographical narrative inquiry investigates the contribution of scaffolded research practice to a female EFL preservice teacher ’s research efficacy.The data were collected through conversations, notes, journals, and portfolios. The findings suggest that teacher research efficacy was pliable through scaffolded research practice. It emerged gradually over time, in different places with social and personal interaction. The factors contributing to the emerging research efficacy were: teacher educators ’ support, peers ’ support,and research participation. The study sheds light on teacher educators and EFL preservice teachers,with the intention of establishing an inquiry-based pedagogy for M.Ed. programs.展开更多
The apparatus for static and dynamic universal triaxial and torsional shear soil testing is employed to perform stress-controlled cyclic single-direction torsional shear tests and two-direction coupled shear tests und...The apparatus for static and dynamic universal triaxial and torsional shear soil testing is employed to perform stress-controlled cyclic single-direction torsional shear tests and two-direction coupled shear tests under unconsolidated-undrained conditions. Through a series of tests on saturated clay, the effects of initial shear stress and stress reversal on the clay’s strain-stress behavior are examined, and the behavior of pore water pressure is studied. The experimental results indicate that the patterns of stress-strain relations are distinctly influenced by the initial shear stress in the cyclic single-direction shear tests. When the initial shear stress is large and no stress reversal occurs, the predominant deformation behavior is characterized by an accumulative effect. When the initial shear stress is zero and symmetrical cyclic stress occurs, the predominant deformation behavior is characterized by a cyclic effect. The pore water pressure fluctuates around the confining pressure with the increase of cycle number. It seems that the fluctuating amplitude increases with the increase of the cyclic stress. But a buildup of pore water pressure does not occur. The de- formations of clay samples under the complex initial and the cyclic coupled stress conditions include the normal deviatoric deforma- tion and horizontal shear deformation, the average deformation and cyclic deformation. A general strain failure criterion taking into account these deformations is recommended and is proved more stable and suitable compared to the strain failure criteria currently used.展开更多
Objectival. To prepare a radioimmunoguided surgery （RIGS） system including radio-nuclides hand- held gamma detecting probe （GDP） with signal processing control unit, specific monoclonal antibody （MAb）, technique...Objectival. To prepare a radioimmunoguided surgery （RIGS） system including radio-nuclides hand- held gamma detecting probe （GDP） with signal processing control unit, specific monoclonal antibody （MAb）, technique of labeling as well as detection of ovarian carcinoma in nude mice bearing human ovari-an carcinoma. Metals. MAb COCl83B2, produced in our laboratory was used to prepare the F （ah’）2, fragment by ficin digestion. 99mTc labeling of COC183 B2-F（ab’）2, and normal mice IgG were prepared according to im- proved pretining method. GDP and control unit were made by Chinese Atomic Energy Research Institute. Different groups of nude mice bearing human ovarian carcinoma with ascites were administered with differ- ent dosages of 99mTo COCl83 B2-F（ab’）2, and their tissues measured by GDP in vivo and compared with gamma well counts after dissection in vitro. Results. 99mTc labeled COCl83B2-F（ab’）2, yielded a labeling rate of over 90%, and a good immunoac- tivity. The detections of carcinoma tissue by GDP showed a T/NT ratio of 2: 1 as positive for cancer. The smallest carcinoma detected was 0. 2cm × 0.1 cm and the nearest distance between carcinoma and normal tissue was 0. 2cm. Conclusions. The above studies proved that ficin can be used to digest MAbs with high yields and good immunoactivity of F（ab’）2. Our RIGS system with 99mTo labeled COC183 B2-F（ab’）2 and GDP can hope-fully be used clinically for ovarian carcinoma detection.展开更多
Cloud computing is very attractive for schools, research institutions and enterpri- ses which need reducing IT costs, improving computing platform sharing and meeting lice- nse constraints. Sharing, management and on-...Cloud computing is very attractive for schools, research institutions and enterpri- ses which need reducing IT costs, improving computing platform sharing and meeting lice- nse constraints. Sharing, management and on- demand allocation of network resources are particularly important in Cloud computing. Ho- wever, nearly all-current available cloud com- puting platforms are either proprietary or their software infrastructure is invisible to the rese- arch community except for a few open-source platforms. For universities and research insti- tutes, more open and testable experimental plat- forms are needed in a lab-level with PCs. In this paper, a platform of infrastructure resou- rce sharing system （Platform as a Service （PaaS）） is developed in virtual Cloud comput- hug environment. Its architecture, core modules, main functions, design and operational envir- onment and applications are introduced in de- tail. It has good expandability and can impr- ove resource sharing and utilization and is app- lied to regular computer science teaching and research process.展开更多
Medical students are the major force of future medical scientific research and clinical work, and itis of great necessity for medical students to have humanistic education, which is also an inevitable way of improving...Medical students are the major force of future medical scientific research and clinical work, and itis of great necessity for medical students to have humanistic education, which is also an inevitable way of improving medical students＇ clinical practice quality. Social progress demands that medical students should not only have excellent professional skills, but also be able to think about problems from medical,social, moral and ethics perspectives, establishing the people-oriented patient-centered noble medical ethics, having a good ability to communicate with people.展开更多
AR （augmented reality） is a technology that adds information to the real world adding virtual elements to its visualization in real time. AR used in AECO （architectural, engineering, construction and operations） c...AR （augmented reality） is a technology that adds information to the real world adding virtual elements to its visualization in real time. AR used in AECO （architectural, engineering, construction and operations） can contribute in augmenting visualization during design, construction and operation of the buildings. This article presents a study that applies AR to building assessment with BIM （building information） model visualization. The use of AR on existing applications for smart phones and tablets is validated. AR proposed an adaptation of the method of POE （post-occupancy evaluation） subsidized. Traditional POE process model involves three phases： planning, conducting and applying. In order to incorporate AR, it is proposed a total restructuring of the planning phase, developing the research instruments in three steps： 3D modeling, model treatment and AR application development. It was observed that for POE studies, the 3D models are in large scale and need to be detailed for precise comparison. BIM models for facility management, representing building use situation, are of the highest level of detail. A balanced point between simplicity and representativeness was the solution adopted in this experiment for uploading and downloading performance issues. This article presents and discusses findings for the new proposition for the activity of research instruments development for the planning phase of POE with AR as well as initial tests with first results and difficulties faced.展开更多
文摘EFL preservice teachers ’ research efficacy, as perceived competence to perform tasks in research, is crucial to their research engagement. This autobiographical narrative inquiry investigates the contribution of scaffolded research practice to a female EFL preservice teacher ’s research efficacy.The data were collected through conversations, notes, journals, and portfolios. The findings suggest that teacher research efficacy was pliable through scaffolded research practice. It emerged gradually over time, in different places with social and personal interaction. The factors contributing to the emerging research efficacy were: teacher educators ’ support, peers ’ support,and research participation. The study sheds light on teacher educators and EFL preservice teachers,with the intention of establishing an inquiry-based pedagogy for M.Ed. programs.
基金This work is supported by the National Natural Science Foundation of China （Grant Nos. 50579006, 50639010 and 50179006）.
文摘The apparatus for static and dynamic universal triaxial and torsional shear soil testing is employed to perform stress-controlled cyclic single-direction torsional shear tests and two-direction coupled shear tests under unconsolidated-undrained conditions. Through a series of tests on saturated clay, the effects of initial shear stress and stress reversal on the clay’s strain-stress behavior are examined, and the behavior of pore water pressure is studied. The experimental results indicate that the patterns of stress-strain relations are distinctly influenced by the initial shear stress in the cyclic single-direction shear tests. When the initial shear stress is large and no stress reversal occurs, the predominant deformation behavior is characterized by an accumulative effect. When the initial shear stress is zero and symmetrical cyclic stress occurs, the predominant deformation behavior is characterized by a cyclic effect. The pore water pressure fluctuates around the confining pressure with the increase of cycle number. It seems that the fluctuating amplitude increases with the increase of the cyclic stress. But a buildup of pore water pressure does not occur. The de- formations of clay samples under the complex initial and the cyclic coupled stress conditions include the normal deviatoric deforma- tion and horizontal shear deformation, the average deformation and cyclic deformation. A general strain failure criterion taking into account these deformations is recommended and is proved more stable and suitable compared to the strain failure criteria currently used.
文摘Objectival. To prepare a radioimmunoguided surgery （RIGS） system including radio-nuclides hand- held gamma detecting probe （GDP） with signal processing control unit, specific monoclonal antibody （MAb）, technique of labeling as well as detection of ovarian carcinoma in nude mice bearing human ovari-an carcinoma. Metals. MAb COCl83B2, produced in our laboratory was used to prepare the F （ah’）2, fragment by ficin digestion. 99mTc labeling of COC183 B2-F（ab’）2, and normal mice IgG were prepared according to im- proved pretining method. GDP and control unit were made by Chinese Atomic Energy Research Institute. Different groups of nude mice bearing human ovarian carcinoma with ascites were administered with differ- ent dosages of 99mTo COCl83 B2-F（ab’）2, and their tissues measured by GDP in vivo and compared with gamma well counts after dissection in vitro. Results. 99mTc labeled COCl83B2-F（ab’）2, yielded a labeling rate of over 90%, and a good immunoac- tivity. The detections of carcinoma tissue by GDP showed a T/NT ratio of 2: 1 as positive for cancer. The smallest carcinoma detected was 0. 2cm × 0.1 cm and the nearest distance between carcinoma and normal tissue was 0. 2cm. Conclusions. The above studies proved that ficin can be used to digest MAbs with high yields and good immunoactivity of F（ab’）2. Our RIGS system with 99mTo labeled COC183 B2-F（ab’）2 and GDP can hope-fully be used clinically for ovarian carcinoma detection.
基金supported by the Coalition for National Science Fundingunder Grant No.61150110486the Central University Funding under Grant No.ZYGX2013J073
文摘Cloud computing is very attractive for schools, research institutions and enterpri- ses which need reducing IT costs, improving computing platform sharing and meeting lice- nse constraints. Sharing, management and on- demand allocation of network resources are particularly important in Cloud computing. Ho- wever, nearly all-current available cloud com- puting platforms are either proprietary or their software infrastructure is invisible to the rese- arch community except for a few open-source platforms. For universities and research insti- tutes, more open and testable experimental plat- forms are needed in a lab-level with PCs. In this paper, a platform of infrastructure resou- rce sharing system （Platform as a Service （PaaS）） is developed in virtual Cloud comput- hug environment. Its architecture, core modules, main functions, design and operational envir- onment and applications are introduced in de- tail. It has good expandability and can impr- ove resource sharing and utilization and is app- lied to regular computer science teaching and research process.
文摘Medical students are the major force of future medical scientific research and clinical work, and itis of great necessity for medical students to have humanistic education, which is also an inevitable way of improving medical students＇ clinical practice quality. Social progress demands that medical students should not only have excellent professional skills, but also be able to think about problems from medical,social, moral and ethics perspectives, establishing the people-oriented patient-centered noble medical ethics, having a good ability to communicate with people.
文摘AR （augmented reality） is a technology that adds information to the real world adding virtual elements to its visualization in real time. AR used in AECO （architectural, engineering, construction and operations） can contribute in augmenting visualization during design, construction and operation of the buildings. This article presents a study that applies AR to building assessment with BIM （building information） model visualization. The use of AR on existing applications for smart phones and tablets is validated. AR proposed an adaptation of the method of POE （post-occupancy evaluation） subsidized. Traditional POE process model involves three phases： planning, conducting and applying. In order to incorporate AR, it is proposed a total restructuring of the planning phase, developing the research instruments in three steps： 3D modeling, model treatment and AR application development. It was observed that for POE studies, the 3D models are in large scale and need to be detailed for precise comparison. BIM models for facility management, representing building use situation, are of the highest level of detail. A balanced point between simplicity and representativeness was the solution adopted in this experiment for uploading and downloading performance issues. This article presents and discusses findings for the new proposition for the activity of research instruments development for the planning phase of POE with AR as well as initial tests with first results and difficulties faced.
