Network media has become more and more involved in our daily life. It has become a part of modern life that cannot be stopped or rejected. Then, how to correctly face the changes in the Internet era is placed in fron...Network media has become more and more involved in our daily life. It has become a part of modern life that cannot be stopped or rejected. Then, how to correctly face the changes in the Internet era is placed in front of everyone. Students need to “learn how to use the media to get their all-round development, effectively prevent the foreign information pollution, and actively guide students to a truly rational attitude for WeChat, blog and micro-blog”. It is a kind of media literacy being confronted with the network’s ability to consciously resist the harmful information, but also to benefit their own development and firmly grasp the information, so as to make full use of the convenience of network self promotion. “Screen reading” network plays an important role in college students’ life, and the fragmentation, the text features of the writing ability of college students also have a strong impact; this paper focuses on the influence of college students in the network reading and writing patterns on their writing ability and influence. From the perspective of media literacy education for college students, writing ability and reading ability provide a feasible way.展开更多
BACKGROUND Narrative nursing is an important clinical nursing intervention model.It is the practice of patient storytelling to share the essence of nursing.The current clinical intervention for biliary atresia(BA)main...BACKGROUND Narrative nursing is an important clinical nursing intervention model.It is the practice of patient storytelling to share the essence of nursing.The current clinical intervention for biliary atresia(BA)mainly focuses on disease treatment and does not pay enough attention to the psychological state of family members.AIM To explore the application value of narrative nursing in the families of children with BA.METHODS Sixty-four family members of children with BA in our hospital from December 2017 to October 2020 were retrospectively included and were divided into a study group(n=32)and a control group(n=32).The control group was provided with routine nursing,while the study group was given narrative nursing on the basis of the control group.The scores of mood state(depression and anxiety),family members’nursing ability,perceived stress,and nursing job satisfaction of the children’s families were calculated before and after the intervention.RESULTS Before intervention,there was no significant difference in the self-rating anxiety scale and self-rating depression scale scores between groups(P>0.05).After intervention,the self-rating anxiety scale and self-rating depression scale scores in the study group were lower than those in the control group(both P=0.000).Before intervention,the study group adjusted life to meet care needs,evaluated family members and social resources,dealt with personal emotions,responded to needs,and provided assistance,and the adaptive care role scores were not significantly different from those in the control group(P=0.802,0.819,0.694,0.796,and 0.686,respectively).After intervention,all scores were significantly lower in the study group than in the control group(all P<0.0001).Before intervention,there was no significant difference in the child post-traumatic stress disorder symptom score(CPSS)score between groups(P=0.615).After intervention,the CPSS scores were significantly lower than those before intervention in both groups and lower in the study group than in the control group(P<0.0001).Nursing job satisfaction of the family members of the study group(93.75%)was higher than that of the control group(75.00%)(P=0.039).CONCLUSION Narrative nursing with family members of children with BA can effectively alleviate negative emotions,reduce perceptual pressure,and improve nursing ability.Additionally,family members are more satisfied with nursing work.展开更多
Mg86.33Ni13.67-xYx(x=0, 1, 3, 6, 10) amorphous alloys were obtained by single-roller melt-spinning technique and the effect of Y addition on the glass forming ability(GFA), crystallization and micro-hardness of Mg-Ni ...Mg86.33Ni13.67-xYx(x=0, 1, 3, 6, 10) amorphous alloys were obtained by single-roller melt-spinning technique and the effect of Y addition on the glass forming ability(GFA), crystallization and micro-hardness of Mg-Ni alloys were studied. The results show that the GFA of Mg86.33Ni13.67-xYx(x=0, 1, 3, 6, 10) is improved successfully with the Y addition. The highest GFA appeares at x=6, while the reduced glass transition temperature (Trg) is 0.5225 and the supercooled liquid region(ΔTx) is 42.06 K; the position of the main diffraction halo is different for the alloys, and the maximum of the main diffraction halo of alloys with x=0, 1, 3 corresponds to the main peaks of a metastable fcc-Mg6Ni or fcc-Mg6Ni + Ni-Y intermetallic phases, and for the alloys with x=6, 10, it corresponds to Mg-Y and Ni-Y intermetallic phases; the micro-hardness of the alloys is improved with Y additions, and the highest micro-hardness is obtained at x=6 at.%, which is 960 MPa.展开更多
目的探讨微课堂联合以临床病例为基础的学习(case based learning,CBL)混合式教学用于神经内科临床带教对带教质量及满意度的影响。方法选取2020年1月—2022年1月在潍坊医学院附属医院神经内科进行住院医师规范化培训的82名学员作为研...目的探讨微课堂联合以临床病例为基础的学习(case based learning,CBL)混合式教学用于神经内科临床带教对带教质量及满意度的影响。方法选取2020年1月—2022年1月在潍坊医学院附属医院神经内科进行住院医师规范化培训的82名学员作为研究对象,按照带教方式的不同分为观察组(采用微课堂联合CBL混合式教学带教)41名与对照组(采用传统带教模式带教)41名。观察2组住培带教后的教学质量,考核成绩,临床思维能力,学习动机、学习满意度,综合能力评分。结果带教后,观察组语言表达、师生沟通、教学氛围评分高于对照组,学习难度低于对照组,差异有统计学意义(P<0.05)。带教后,观察组的理论考核与技能操作考核成绩均高于对照组,差异有统计学意义(P<0.05)。带教后,观察组的胜任需求、自主需求、归属需求、学习满意度评分高于对照组,差异有统计学意义(P<0.05)。带教后,观察组的评判性思维能力、系统性思维能力和循证性思维能力评分均高于对照组,差异有统计学意义(P<0.05)。带教前,2组的查阅资料能力、临床操作能力、自学能力、口头表述能力、协作能力比较差异无统计学意义(P>0.05);带教后,观察组的查阅资料能力、临床操作能力、自学能力、口头表述能力、协作能力评分均高于对照组,差异有统计学意义(P<0.05)。结论微课堂联合CBL混合式教学用于神经内科临床带教能够提高教学质量,提高考核成绩以及临床思维能力,改善学习动机,提升学习满意度,提高综合能力评分。展开更多
The limit working parameters and service life of axial piston pump are determined by the carrying ability and lubrication characteristic of its key friction pairs. Therefore, the design and optimization of the key fri...The limit working parameters and service life of axial piston pump are determined by the carrying ability and lubrication characteristic of its key friction pairs. Therefore, the design and optimization of the key friction pairs are always a key and difficult problem in the research on axial piston pump. In the traditional research on piston/cylinder pair, the assembly relationship of piston and cylinder bore is simplified into ideal cylindrical pair, which can not be used to analyze the influences of radial micro-motion of piston on the distribution characteristics of oil-film thickness and pressure in details. In this paper, based on the lubrication theory of the oil film, a numerical simulation model is built, taking the influences of roughness, elastic deformation of piston and pressure-viscosity effect into consideration. With the simulation model, the dynamic characteristics of the radial micro-motion and pressure distribution are analyzed, and the relationships between radial micro-motion and carrying ability, lubrication condition, and abrasion are discussed. Furthermore, a model pump for pressure distribution measurement of oil film between piston and cylinder bore is designed. The comparison of simulation and experimental results of pressure distribution shows that the simulation model has high accuracy. The experiment and simulation results demonstrate that the pressure distribution has peak values that are much higher than the boundary pressure in the piston chamber due to the radial micro-motion, and the abrasion of piston takes place mainly on the hand close to piston ball. In addition, improvement of manufacturing roundness and straightness of piston and cylinder bore is helpful to improve the carrying ability of piston/cylinder pair. The proposed research provides references for designing piston/cylinder pair, and helps to prolong the service life of axial piston pump.展开更多
文摘Network media has become more and more involved in our daily life. It has become a part of modern life that cannot be stopped or rejected. Then, how to correctly face the changes in the Internet era is placed in front of everyone. Students need to “learn how to use the media to get their all-round development, effectively prevent the foreign information pollution, and actively guide students to a truly rational attitude for WeChat, blog and micro-blog”. It is a kind of media literacy being confronted with the network’s ability to consciously resist the harmful information, but also to benefit their own development and firmly grasp the information, so as to make full use of the convenience of network self promotion. “Screen reading” network plays an important role in college students’ life, and the fragmentation, the text features of the writing ability of college students also have a strong impact; this paper focuses on the influence of college students in the network reading and writing patterns on their writing ability and influence. From the perspective of media literacy education for college students, writing ability and reading ability provide a feasible way.
基金the Huai’an Maternal and Child Hospital Ethics Committee(Approval No.2020038).
文摘BACKGROUND Narrative nursing is an important clinical nursing intervention model.It is the practice of patient storytelling to share the essence of nursing.The current clinical intervention for biliary atresia(BA)mainly focuses on disease treatment and does not pay enough attention to the psychological state of family members.AIM To explore the application value of narrative nursing in the families of children with BA.METHODS Sixty-four family members of children with BA in our hospital from December 2017 to October 2020 were retrospectively included and were divided into a study group(n=32)and a control group(n=32).The control group was provided with routine nursing,while the study group was given narrative nursing on the basis of the control group.The scores of mood state(depression and anxiety),family members’nursing ability,perceived stress,and nursing job satisfaction of the children’s families were calculated before and after the intervention.RESULTS Before intervention,there was no significant difference in the self-rating anxiety scale and self-rating depression scale scores between groups(P>0.05).After intervention,the self-rating anxiety scale and self-rating depression scale scores in the study group were lower than those in the control group(both P=0.000).Before intervention,the study group adjusted life to meet care needs,evaluated family members and social resources,dealt with personal emotions,responded to needs,and provided assistance,and the adaptive care role scores were not significantly different from those in the control group(P=0.802,0.819,0.694,0.796,and 0.686,respectively).After intervention,all scores were significantly lower in the study group than in the control group(all P<0.0001).Before intervention,there was no significant difference in the child post-traumatic stress disorder symptom score(CPSS)score between groups(P=0.615).After intervention,the CPSS scores were significantly lower than those before intervention in both groups and lower in the study group than in the control group(P<0.0001).Nursing job satisfaction of the family members of the study group(93.75%)was higher than that of the control group(75.00%)(P=0.039).CONCLUSION Narrative nursing with family members of children with BA can effectively alleviate negative emotions,reduce perceptual pressure,and improve nursing ability.Additionally,family members are more satisfied with nursing work.
基金supported by the Award Fund for Outstanding Young Scientist in Shandong Province, China (No. BS2011CL004)
文摘Mg86.33Ni13.67-xYx(x=0, 1, 3, 6, 10) amorphous alloys were obtained by single-roller melt-spinning technique and the effect of Y addition on the glass forming ability(GFA), crystallization and micro-hardness of Mg-Ni alloys were studied. The results show that the GFA of Mg86.33Ni13.67-xYx(x=0, 1, 3, 6, 10) is improved successfully with the Y addition. The highest GFA appeares at x=6, while the reduced glass transition temperature (Trg) is 0.5225 and the supercooled liquid region(ΔTx) is 42.06 K; the position of the main diffraction halo is different for the alloys, and the maximum of the main diffraction halo of alloys with x=0, 1, 3 corresponds to the main peaks of a metastable fcc-Mg6Ni or fcc-Mg6Ni + Ni-Y intermetallic phases, and for the alloys with x=6, 10, it corresponds to Mg-Y and Ni-Y intermetallic phases; the micro-hardness of the alloys is improved with Y additions, and the highest micro-hardness is obtained at x=6 at.%, which is 960 MPa.
文摘目的探讨微课堂联合以临床病例为基础的学习(case based learning,CBL)混合式教学用于神经内科临床带教对带教质量及满意度的影响。方法选取2020年1月—2022年1月在潍坊医学院附属医院神经内科进行住院医师规范化培训的82名学员作为研究对象,按照带教方式的不同分为观察组(采用微课堂联合CBL混合式教学带教)41名与对照组(采用传统带教模式带教)41名。观察2组住培带教后的教学质量,考核成绩,临床思维能力,学习动机、学习满意度,综合能力评分。结果带教后,观察组语言表达、师生沟通、教学氛围评分高于对照组,学习难度低于对照组,差异有统计学意义(P<0.05)。带教后,观察组的理论考核与技能操作考核成绩均高于对照组,差异有统计学意义(P<0.05)。带教后,观察组的胜任需求、自主需求、归属需求、学习满意度评分高于对照组,差异有统计学意义(P<0.05)。带教后,观察组的评判性思维能力、系统性思维能力和循证性思维能力评分均高于对照组,差异有统计学意义(P<0.05)。带教前,2组的查阅资料能力、临床操作能力、自学能力、口头表述能力、协作能力比较差异无统计学意义(P>0.05);带教后,观察组的查阅资料能力、临床操作能力、自学能力、口头表述能力、协作能力评分均高于对照组,差异有统计学意义(P<0.05)。结论微课堂联合CBL混合式教学用于神经内科临床带教能够提高教学质量,提高考核成绩以及临床思维能力,改善学习动机,提升学习满意度,提高综合能力评分。
基金supported by National Natural Science Foundation of China(Grant No. 51075360)Doctoral Foundation of Ministry of Education of China(Grant No. 20090101110041)National Key Technology R&D Program of the Twelfth Five-year Plan of China(Grant No. 2011BAF09B03)
文摘The limit working parameters and service life of axial piston pump are determined by the carrying ability and lubrication characteristic of its key friction pairs. Therefore, the design and optimization of the key friction pairs are always a key and difficult problem in the research on axial piston pump. In the traditional research on piston/cylinder pair, the assembly relationship of piston and cylinder bore is simplified into ideal cylindrical pair, which can not be used to analyze the influences of radial micro-motion of piston on the distribution characteristics of oil-film thickness and pressure in details. In this paper, based on the lubrication theory of the oil film, a numerical simulation model is built, taking the influences of roughness, elastic deformation of piston and pressure-viscosity effect into consideration. With the simulation model, the dynamic characteristics of the radial micro-motion and pressure distribution are analyzed, and the relationships between radial micro-motion and carrying ability, lubrication condition, and abrasion are discussed. Furthermore, a model pump for pressure distribution measurement of oil film between piston and cylinder bore is designed. The comparison of simulation and experimental results of pressure distribution shows that the simulation model has high accuracy. The experiment and simulation results demonstrate that the pressure distribution has peak values that are much higher than the boundary pressure in the piston chamber due to the radial micro-motion, and the abrasion of piston takes place mainly on the hand close to piston ball. In addition, improvement of manufacturing roundness and straightness of piston and cylinder bore is helpful to improve the carrying ability of piston/cylinder pair. The proposed research provides references for designing piston/cylinder pair, and helps to prolong the service life of axial piston pump.
