Objectives:To explore the knowledge,attitude and practice of Chinese nurses regarding nursing interruptions and related factors.Methods:A total of 6,400 nurses from 31 hospitals in China were investigated by using the...Objectives:To explore the knowledge,attitude and practice of Chinese nurses regarding nursing interruptions and related factors.Methods:A total of 6,400 nurses from 31 hospitals in China were investigated by using the Knowledge,Attitude and Practice(KAP)Questionnaire of Nursing Interruptions.The questionnaire consists of three dimensions,knowledge,attitude and practice,containing 10,9 and 7 items,with full score of 50,45 and 28,respectively.Results:The mean overall KAP score regarding nursing interruptions of Chinese nurses was 74.05±16.65(range:26-123),with scores for the knowledge,attitude,and practice component being 21.74±9.80,34.83±6.98,and 17.49±4.97,respectively.Among the nurses,70.8%of them experienced an average level of KAP toward nursing interruptions while 15.5%were at a poor level.The knowledge,attitude,and practice of nursing interruptions were better in chief nurses,managers,nurses with a master degree or above,nurses ever received training,and nurses with a strong agreement to leadership compared to nurses in other groups(P<0.05).In addition,employment type,professional title,position,standardized training and leaders'attention were predictors of KAP in nurses.Conclusion:Chinese nurses have a moderate level of KAP regarding nursing interruptions.Leaders'attention,standardized training,position,professional title and employment type could predict nurses'KAP state of nursing interruptions.Thus,a targeted training program should be implemented for clinical nurses by nursing leaders,with a particular focus on feasibility and professionalism.展开更多
The 3D orthogonal woven basalt fiber reinforced polyimide (PI) composites were fabricated and characterized in this study. The PI film was firstly prepared to determine PI processing parameters. Fourier transform infr...The 3D orthogonal woven basalt fiber reinforced polyimide (PI) composites were fabricated and characterized in this study. The PI film was firstly prepared to determine PI processing parameters. Fourier transform infrared (FTIR) analysis showed that 300°C was the suitable imidization temperature. Thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) results showed relatively good thermal properties of the PI film. In the fabrication of composites, the multi-step impregnation method was applied. The bending properties of 3 mm-thick composite showed increasing trend in all and the second-time impregnated composite had much higher value than the first-time impregnated composite. Moreover, the bending fracture mode photos showed obvious creases except for the first-time impregnated materials, which agreed well with the bending property values. The dielectric constants for the composites were complex because they had not regular value following the mixing rule of the composites, which was mainly due to the interfacial polarization and other effects in the fabrication processing.展开更多
We investigate the gas flows near to solid surfaces in terms of the local spatial variation in the molecular mean free path(MFP).Molecular dynamics(MD)is the appropriate scientific tool for obtaining molecularly-accur...We investigate the gas flows near to solid surfaces in terms of the local spatial variation in the molecular mean free path(MFP).Molecular dynamics(MD)is the appropriate scientific tool for obtaining molecularly-accurate dynamic information in micro and nano-scale gas flows,and has been used to evaluate the molecular mean free path of gases.In the calibration procedure,the viscosity of a gas in the homogeneous case can be recovered in our MD simulations and reach good agreement with the theoretical prediction and data from NIST.In surface-bounded gas flows,if the collisions between gas molecules and walls are counted,a spatially-varying mean free path is presented,and for the first time we have observed that the distribution of the free paths deviates from the exponential one and spikes appear in their distributions at larger Kn,i.e.in the transition flow regime.Based on elementary kinetic theory,the effective viscosity of the gas derived from the mean free path has been incorporated into the framework of the continuum-fluid dynamics equations,and micro-Couette flows are performed to demonstrate this potential application.展开更多
基金Paper extracted from The New Xiangya Talent Projects of the Third Xiangya Hospital of Central South University(NO:JY201720).
文摘Objectives:To explore the knowledge,attitude and practice of Chinese nurses regarding nursing interruptions and related factors.Methods:A total of 6,400 nurses from 31 hospitals in China were investigated by using the Knowledge,Attitude and Practice(KAP)Questionnaire of Nursing Interruptions.The questionnaire consists of three dimensions,knowledge,attitude and practice,containing 10,9 and 7 items,with full score of 50,45 and 28,respectively.Results:The mean overall KAP score regarding nursing interruptions of Chinese nurses was 74.05±16.65(range:26-123),with scores for the knowledge,attitude,and practice component being 21.74±9.80,34.83±6.98,and 17.49±4.97,respectively.Among the nurses,70.8%of them experienced an average level of KAP toward nursing interruptions while 15.5%were at a poor level.The knowledge,attitude,and practice of nursing interruptions were better in chief nurses,managers,nurses with a master degree or above,nurses ever received training,and nurses with a strong agreement to leadership compared to nurses in other groups(P<0.05).In addition,employment type,professional title,position,standardized training and leaders'attention were predictors of KAP in nurses.Conclusion:Chinese nurses have a moderate level of KAP regarding nursing interruptions.Leaders'attention,standardized training,position,professional title and employment type could predict nurses'KAP state of nursing interruptions.Thus,a targeted training program should be implemented for clinical nurses by nursing leaders,with a particular focus on feasibility and professionalism.
文摘The 3D orthogonal woven basalt fiber reinforced polyimide (PI) composites were fabricated and characterized in this study. The PI film was firstly prepared to determine PI processing parameters. Fourier transform infrared (FTIR) analysis showed that 300°C was the suitable imidization temperature. Thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) results showed relatively good thermal properties of the PI film. In the fabrication of composites, the multi-step impregnation method was applied. The bending properties of 3 mm-thick composite showed increasing trend in all and the second-time impregnated composite had much higher value than the first-time impregnated composite. Moreover, the bending fracture mode photos showed obvious creases except for the first-time impregnated materials, which agreed well with the bending property values. The dielectric constants for the composites were complex because they had not regular value following the mixing rule of the composites, which was mainly due to the interfacial polarization and other effects in the fabrication processing.
基金the UK’s Engineering and Physical Sciences Research Council(EPSRC)via grant no.EP/N016602/1.
文摘We investigate the gas flows near to solid surfaces in terms of the local spatial variation in the molecular mean free path(MFP).Molecular dynamics(MD)is the appropriate scientific tool for obtaining molecularly-accurate dynamic information in micro and nano-scale gas flows,and has been used to evaluate the molecular mean free path of gases.In the calibration procedure,the viscosity of a gas in the homogeneous case can be recovered in our MD simulations and reach good agreement with the theoretical prediction and data from NIST.In surface-bounded gas flows,if the collisions between gas molecules and walls are counted,a spatially-varying mean free path is presented,and for the first time we have observed that the distribution of the free paths deviates from the exponential one and spikes appear in their distributions at larger Kn,i.e.in the transition flow regime.Based on elementary kinetic theory,the effective viscosity of the gas derived from the mean free path has been incorporated into the framework of the continuum-fluid dynamics equations,and micro-Couette flows are performed to demonstrate this potential application.
