A biodegradable ABBA block copolymer was synthesized via the ring-opening co-polymerization of ~ε-caprolactone(CL, B) and glycolide(A) by means of step polymerization in the presence of ethylene glycol as an initiato...A biodegradable ABBA block copolymer was synthesized via the ring-opening co-polymerization of ~ε-caprolactone(CL, B) and glycolide(A) by means of step polymerization in the presence of ethylene glycol as an initiator and stannous octanoate as a catalyst at 110 ℃ for 48 h. The molecular length of the PCL pre-polymer(BB) could be adjusted by controlling the molar ratio of the ethylene glycol initiator to ε-caprolactone monomer. The structure and the composition of the block copolymer were determined by the weight ratio of the monomer glycolide(A) to PCL pre-polymer(BB). The block copolymers were characterized by ~ 1H NMR, GPC, DSC and X-ray. The results confirm the successful synthesis of an ABBA block copolymer.展开更多
The relation between technology parameters and performance index of the wheat three-stage concurrent-flow drying technology is studied by use of quadratic orthogonial rotate combinative experiment design method.The op...The relation between technology parameters and performance index of the wheat three-stage concurrent-flow drying technology is studied by use of quadratic orthogonial rotate combinative experiment design method.The optimum parameters of drying technology are obtained by nonlinear optimize corresponding regression model and test.All experiment was finished in concurrent-flow grain drying experiment table.The results of this study will be significant for designing energy-saving grain drying machine.展开更多
The L - proline - functionalized polystyrene with 1- methyldecylene spacerwas synthesized from 2 % divinylbenzene -crosslinked Polystyrene gel via 10 -bro-mo - 1 - methyldecyl polystyrene intermediate. After complexed...The L - proline - functionalized polystyrene with 1- methyldecylene spacerwas synthesized from 2 % divinylbenzene -crosslinked Polystyrene gel via 10 -bro-mo - 1 - methyldecyl polystyrene intermediate. After complexed with copper(Ⅱ )ion, the polymer with L - proline ligand was used as the chiral statiboary phase(CSP) for ligand exchange chromatography of amino acid racemates. The resultsshowed that the CSP possessed powerful enantioselectivity and all racenzates of thefifteen tried amino acids were completely separated.展开更多
Objective: To explore the systematic health education in the postpartum nursing of primipara, and to observe the influence of the knowledge of breast-feeding of primipara and the mastery of newborn nursing ability. Me...Objective: To explore the systematic health education in the postpartum nursing of primipara, and to observe the influence of the knowledge of breast-feeding of primipara and the mastery of newborn nursing ability. Methods: the start time of the included cases was set in September 2020, and the end time of the included cases was set in September 2021. A total of 80 primiparas were included, all of whom were delivered in our hospital during this period. The control group (n 40) was given routine nursing, and the research group (n 40) was given systematic health education. The emphasis was on the analysis of maternal health knowledge, newborn nursing ability and nursing satisfaction after systematic health education. Results: compared with the control group of routine nursing, the study group with systematic health education had higher scores of puerperal related knowledge and neonatal nursing ability (P 0.05);The study group had higher nursing satisfaction (P 0.05);The scores of SAS and SDS in the study group were lower (P 0.05);The score of BSEs was higher in the study group (P 0.05). Conclusion: systematic health education for primiparas is helpful to improve their mastery of relevant knowledge and improve their nursing satisfaction. It is suggested to popularize it.展开更多
Objective: to study the clinical effect of cluster management to prevent complications in patients with multiple myeloma after PICC catheterization. Methods: fifty-eight PICC patients with multiple myeloma admitted to...Objective: to study the clinical effect of cluster management to prevent complications in patients with multiple myeloma after PICC catheterization. Methods: fifty-eight PICC patients with multiple myeloma admitted to our hospital from January 2021 to January 2022 participated in this study, and they were divided into study group and reference group by means of average distribution. Patients in the reference group were given routine nursing mode, and patients in the study group were intervened by cluster management. The quality of life, the use effect of PICC catheter, the probability of complications and the utilization rate of PICC catheter were compared between the two groups. Results: compared with the reference group, the patients in the study group had a longer catheter life cycle (P < 0.05), a shorter hospital stay (P < 0.05), a higher catheter utilization rate (P < 0.05) and a lower complication rate (P < 0.05). After the intervention, the social adaptability, psychological function and physiological function of the patients in the two groups were improved, compared with those before the intervention. The effect of cluster management in the study group was more obvious than that of routine nursing in the reference group (P < 0.05). Conclusion: the application of cluster management mode in the intervention of PICC patients with multiple myeloma can effectively improve the quality of life of patients, improve the use of catheters, and avoid catheter-related complications, which can be widely popularized in clinic.展开更多
Objective: to explore the efficacy of the overall nursing program applied to patients with open cholecystectomy. Method: a patient with cholecystolithiasis who was admitted to Health Center of Maoying town in Ziyun co...Objective: to explore the efficacy of the overall nursing program applied to patients with open cholecystectomy. Method: a patient with cholecystolithiasis who was admitted to Health Center of Maoying town in Ziyun county in April 2021 was selected to carry out overall nursing. Carry out the overall nursing effect on patients with cholecystolithiasis and cholecystectomy, and collect the data of patients body temperature, heart rate, pulse, respiration and blood pressure. Conclusion: the holistic nursing includes fasting for 6 hours and water for 4 hours before operation, no bowel preparation before operation, not routinely placing various pipes, eating after exhaustion after operation, and getting out of bed early after operation. Treatment measures are safe and effective for patients with simple cholecystolithiasis who undergo open cholecystectomy, which can accelerate the recovery of digestive tract function, reduce hospitalization time, save hospitalization costs, and do not increase the risk of complications such as bile leakage, abdominal bleeding, and abdominal distension.展开更多
Objective: to analyze the improved skin flap nursing after radical mastectomy for breast cancer. Methods: 80 patients with breast cancer were selected. The control group was routine nursing and the study group was com...Objective: to analyze the improved skin flap nursing after radical mastectomy for breast cancer. Methods: 80 patients with breast cancer were selected. The control group was routine nursing and the study group was comprehensive nursing. The curative effects of the two groups were compared. Results: compared with the control group, the study group had a higher improvement effect on psychological status and a lower incidence of complications (P<0.05). Conclusion: comprehensive nursing intervention can improve the prognosis of patients with breast cancer after modified radical mastectomy.展开更多
文摘A biodegradable ABBA block copolymer was synthesized via the ring-opening co-polymerization of ~ε-caprolactone(CL, B) and glycolide(A) by means of step polymerization in the presence of ethylene glycol as an initiator and stannous octanoate as a catalyst at 110 ℃ for 48 h. The molecular length of the PCL pre-polymer(BB) could be adjusted by controlling the molar ratio of the ethylene glycol initiator to ε-caprolactone monomer. The structure and the composition of the block copolymer were determined by the weight ratio of the monomer glycolide(A) to PCL pre-polymer(BB). The block copolymers were characterized by ~ 1H NMR, GPC, DSC and X-ray. The results confirm the successful synthesis of an ABBA block copolymer.
文摘The relation between technology parameters and performance index of the wheat three-stage concurrent-flow drying technology is studied by use of quadratic orthogonial rotate combinative experiment design method.The optimum parameters of drying technology are obtained by nonlinear optimize corresponding regression model and test.All experiment was finished in concurrent-flow grain drying experiment table.The results of this study will be significant for designing energy-saving grain drying machine.
文摘The L - proline - functionalized polystyrene with 1- methyldecylene spacerwas synthesized from 2 % divinylbenzene -crosslinked Polystyrene gel via 10 -bro-mo - 1 - methyldecyl polystyrene intermediate. After complexed with copper(Ⅱ )ion, the polymer with L - proline ligand was used as the chiral statiboary phase(CSP) for ligand exchange chromatography of amino acid racemates. The resultsshowed that the CSP possessed powerful enantioselectivity and all racenzates of thefifteen tried amino acids were completely separated.
文摘Objective: To explore the systematic health education in the postpartum nursing of primipara, and to observe the influence of the knowledge of breast-feeding of primipara and the mastery of newborn nursing ability. Methods: the start time of the included cases was set in September 2020, and the end time of the included cases was set in September 2021. A total of 80 primiparas were included, all of whom were delivered in our hospital during this period. The control group (n 40) was given routine nursing, and the research group (n 40) was given systematic health education. The emphasis was on the analysis of maternal health knowledge, newborn nursing ability and nursing satisfaction after systematic health education. Results: compared with the control group of routine nursing, the study group with systematic health education had higher scores of puerperal related knowledge and neonatal nursing ability (P 0.05);The study group had higher nursing satisfaction (P 0.05);The scores of SAS and SDS in the study group were lower (P 0.05);The score of BSEs was higher in the study group (P 0.05). Conclusion: systematic health education for primiparas is helpful to improve their mastery of relevant knowledge and improve their nursing satisfaction. It is suggested to popularize it.
文摘Objective: to study the clinical effect of cluster management to prevent complications in patients with multiple myeloma after PICC catheterization. Methods: fifty-eight PICC patients with multiple myeloma admitted to our hospital from January 2021 to January 2022 participated in this study, and they were divided into study group and reference group by means of average distribution. Patients in the reference group were given routine nursing mode, and patients in the study group were intervened by cluster management. The quality of life, the use effect of PICC catheter, the probability of complications and the utilization rate of PICC catheter were compared between the two groups. Results: compared with the reference group, the patients in the study group had a longer catheter life cycle (P < 0.05), a shorter hospital stay (P < 0.05), a higher catheter utilization rate (P < 0.05) and a lower complication rate (P < 0.05). After the intervention, the social adaptability, psychological function and physiological function of the patients in the two groups were improved, compared with those before the intervention. The effect of cluster management in the study group was more obvious than that of routine nursing in the reference group (P < 0.05). Conclusion: the application of cluster management mode in the intervention of PICC patients with multiple myeloma can effectively improve the quality of life of patients, improve the use of catheters, and avoid catheter-related complications, which can be widely popularized in clinic.
文摘Objective: to explore the efficacy of the overall nursing program applied to patients with open cholecystectomy. Method: a patient with cholecystolithiasis who was admitted to Health Center of Maoying town in Ziyun county in April 2021 was selected to carry out overall nursing. Carry out the overall nursing effect on patients with cholecystolithiasis and cholecystectomy, and collect the data of patients body temperature, heart rate, pulse, respiration and blood pressure. Conclusion: the holistic nursing includes fasting for 6 hours and water for 4 hours before operation, no bowel preparation before operation, not routinely placing various pipes, eating after exhaustion after operation, and getting out of bed early after operation. Treatment measures are safe and effective for patients with simple cholecystolithiasis who undergo open cholecystectomy, which can accelerate the recovery of digestive tract function, reduce hospitalization time, save hospitalization costs, and do not increase the risk of complications such as bile leakage, abdominal bleeding, and abdominal distension.
文摘Objective: to analyze the improved skin flap nursing after radical mastectomy for breast cancer. Methods: 80 patients with breast cancer were selected. The control group was routine nursing and the study group was comprehensive nursing. The curative effects of the two groups were compared. Results: compared with the control group, the study group had a higher improvement effect on psychological status and a lower incidence of complications (P<0.05). Conclusion: comprehensive nursing intervention can improve the prognosis of patients with breast cancer after modified radical mastectomy.
