This article proposes a novel fractional heterogeneous neural network by coupling a Rulkov neuron with a Hopfield neural network(FRHNN),utilizing memristors for emulating neural synapses.The study firstly demonstrates...This article proposes a novel fractional heterogeneous neural network by coupling a Rulkov neuron with a Hopfield neural network(FRHNN),utilizing memristors for emulating neural synapses.The study firstly demonstrates the coexistence of multiple firing patterns through phase diagrams,Lyapunov exponents(LEs),and bifurcation diagrams.Secondly,the parameter related firing behaviors are described through two-parameter bifurcation diagrams.Subsequently,local attraction basins reveal multi-stability phenomena related to initial values.Moreover,the proposed model is implemented on a microcomputer-based ARM platform,and the experimental results correspond to the numerical simulations.Finally,the article explores the application of digital watermarking for medical images,illustrating its features of excellent imperceptibility,extensive key space,and robustness against attacks including noise and cropping.展开更多
Introduction:The In-patient Medication Order Entry System (IPMOE) was first implemented in the medical ward of Princess Margaret Hospital,Hong Kong.It was a local developed close-loop system including prescription,dis...Introduction:The In-patient Medication Order Entry System (IPMOE) was first implemented in the medical ward of Princess Margaret Hospital,Hong Kong.It was a local developed close-loop system including prescription,dispensing and administration modules.Evaluation on its impact on nursing tasks would be important for practice improvement and subsequent system enhancement.Objective:The study was conducted to quantify the nursing times across medication-associated tasks for paper-based MAR and computer-based IPMOE,including change in the tasks and time patterns before and after IPMOE implementation.Methods:This was a prospective observation study in medical wards before (Jan 2014-Jun 2014) and after (Mar 2015-Jun 2015) the implementation of IPMOE.We conducted 8-hr observation studies of individual nurses with a customized application to time various pre-categorized nursing tasks.Statistical inferences and interrupted time series analysis was performed to identify the change in the intercept and trends over time after implementation.Result:The average number of medication-related tasks was significantly reduced from 61.07 to 29.81,a reduction of 31.26 episodes per duty (P < 0.001,95% CI 22.9-39.63).The time for the medication-related tasks was reduced from 32 min (SD =21.57) to 26.57 min (SD =11.35) and the medication administration time increased from 37.93 min (SD-14.78) to 44.37 min (SD 19.45),but there was no overall significant difference in the time spent on each duty (P =0.315) between the two groups.An improving trend in the delayed effect was observed (P =0.03),which indicated a run-in period for new application was needed in clinical setting.Conclusion:Our study had shown the time motion observation could be applied to measure the impact of the IPMOE in a busy clinical setting.Through classification of activities,validation,objective measurement and longitudinal evaluation,the method could be applied in various systems as well as different clinical settings in measure efficiency.展开更多
In the present study, we aimed to analyze the irrational medical orders and evaluate the effect of pharmacy intervention on pharmacy intravenous admixture services of outpatient and emergency departments in our hospit...In the present study, we aimed to analyze the irrational medical orders and evaluate the effect of pharmacy intervention on pharmacy intravenous admixture services of outpatient and emergency departments in our hospital. The irrational medical orders of PIVAS at the outpatient and emergency departments were retrospectively analyzed in Jun. 2015. We strengthened the pharmacy intervention on irrational medical orders since July 2015. All the cases were selected by systematic sampling method. Cased studied in Jun. 2015 served as the control group, whereas those studied in Jan. 2016 served as the intervention group. The irrational rate and the irrational number of daily average were compared between the control group and intervention group. The common type of irrational outpatient and emergency intravenous orders mainly included irrational use of solvents, irrational dosing interval and inappropriate compatibility of drugs. The irrational rate was reduced from 17.4% to 3.3% （P〈0.01）, and the irrational number of daily average was decreased from 5.23 to 1.00 （P〈0.01）. Pharmacy intervention can reduce the irrational rate of medical orders in our hospital, which is of great significance to promote rational drug use and improve medical quality.展开更多
文摘This article proposes a novel fractional heterogeneous neural network by coupling a Rulkov neuron with a Hopfield neural network(FRHNN),utilizing memristors for emulating neural synapses.The study firstly demonstrates the coexistence of multiple firing patterns through phase diagrams,Lyapunov exponents(LEs),and bifurcation diagrams.Secondly,the parameter related firing behaviors are described through two-parameter bifurcation diagrams.Subsequently,local attraction basins reveal multi-stability phenomena related to initial values.Moreover,the proposed model is implemented on a microcomputer-based ARM platform,and the experimental results correspond to the numerical simulations.Finally,the article explores the application of digital watermarking for medical images,illustrating its features of excellent imperceptibility,extensive key space,and robustness against attacks including noise and cropping.
文摘Introduction:The In-patient Medication Order Entry System (IPMOE) was first implemented in the medical ward of Princess Margaret Hospital,Hong Kong.It was a local developed close-loop system including prescription,dispensing and administration modules.Evaluation on its impact on nursing tasks would be important for practice improvement and subsequent system enhancement.Objective:The study was conducted to quantify the nursing times across medication-associated tasks for paper-based MAR and computer-based IPMOE,including change in the tasks and time patterns before and after IPMOE implementation.Methods:This was a prospective observation study in medical wards before (Jan 2014-Jun 2014) and after (Mar 2015-Jun 2015) the implementation of IPMOE.We conducted 8-hr observation studies of individual nurses with a customized application to time various pre-categorized nursing tasks.Statistical inferences and interrupted time series analysis was performed to identify the change in the intercept and trends over time after implementation.Result:The average number of medication-related tasks was significantly reduced from 61.07 to 29.81,a reduction of 31.26 episodes per duty (P < 0.001,95% CI 22.9-39.63).The time for the medication-related tasks was reduced from 32 min (SD =21.57) to 26.57 min (SD =11.35) and the medication administration time increased from 37.93 min (SD-14.78) to 44.37 min (SD 19.45),but there was no overall significant difference in the time spent on each duty (P =0.315) between the two groups.An improving trend in the delayed effect was observed (P =0.03),which indicated a run-in period for new application was needed in clinical setting.Conclusion:Our study had shown the time motion observation could be applied to measure the impact of the IPMOE in a busy clinical setting.Through classification of activities,validation,objective measurement and longitudinal evaluation,the method could be applied in various systems as well as different clinical settings in measure efficiency.
文摘In the present study, we aimed to analyze the irrational medical orders and evaluate the effect of pharmacy intervention on pharmacy intravenous admixture services of outpatient and emergency departments in our hospital. The irrational medical orders of PIVAS at the outpatient and emergency departments were retrospectively analyzed in Jun. 2015. We strengthened the pharmacy intervention on irrational medical orders since July 2015. All the cases were selected by systematic sampling method. Cased studied in Jun. 2015 served as the control group, whereas those studied in Jan. 2016 served as the intervention group. The irrational rate and the irrational number of daily average were compared between the control group and intervention group. The common type of irrational outpatient and emergency intravenous orders mainly included irrational use of solvents, irrational dosing interval and inappropriate compatibility of drugs. The irrational rate was reduced from 17.4% to 3.3% （P〈0.01）, and the irrational number of daily average was decreased from 5.23 to 1.00 （P〈0.01）. Pharmacy intervention can reduce the irrational rate of medical orders in our hospital, which is of great significance to promote rational drug use and improve medical quality.
