BACKGROUND Elderly patients undergoing laparoscopic colorectal cancer surgery are at high risk for hypothermia-related complications.This study explores the efficacy of periop-erative composite insulation intervention...BACKGROUND Elderly patients undergoing laparoscopic colorectal cancer surgery are at high risk for hypothermia-related complications.This study explores the efficacy of periop-erative composite insulation interventions in maintaining normothermia and reducing postoperative risks in this vulnerable group.AIM To evaluate the efficacy of perioperative composite insulation in older patients undergoing colorectal cancer surgery.METHODS We selected 100 older patients who underwent laparoscopic surgery for colorectal cancer at Huzhou Central Hospital from September 2023 to April 2024.Using a random number table,patients were divided into a control group and inter-vention group of 50 patients each.After returning to the regular ward,the con-ventional group received traditional insulation intervention measures,while the intervention group received composite insulation nursing intervention.We ob-served and recorded postoperative blood pressure and heart rate changes,as well as postoperative anesthesia recovery time and incidence of complications.RESULTS The statistical results showed significant differences(P<0.05)in heart rate changes and systolic blood pressure between the two groups.There was a sig-nificant change in heart rate between the groups immediately after surgery and at 15 and 30 minutes after surgery(P<0.05).The heart rate and systolic blood pressure of the intervention group were significantly lower than those of the control group at 15 and 30 minutes after surgery(P<0.05).The rewarming time of the intervention group was shorter than that of the control group,and the overall incidence of postoperative complications was significantly lower than that of the control group(P<0.05).CONCLUSION For elderly patients undergoing laparoscopic colorectal cancer surgery,a composite insulation intervention during the perioperative period can maintain body temperature,reduce postoperative stress,and significantly reduce the incidence of hypothermia and related complications.展开更多
Ceramic dielectric materials for energy storage have been widely investigated because of the superior advantages of a rapid charge/discharge speed and ultra-high power density.However,there are no significant breakthr...Ceramic dielectric materials for energy storage have been widely investigated because of the superior advantages of a rapid charge/discharge speed and ultra-high power density.However,there are no significant breakthroughs in integrative energy storage density and efficiency improvements.In this work,a composition optimization scheme for boosting the synergistic energy storage performances of K_(0.5)Na_(0.5)NbO_(3)(KNN)-based ceramics has been proposed,namely diminishing the grain size to the submicron scale for enhancing the breakdown strength(BDS)and generating nanodomains for reducing the remanent polarization(Pr)by incorporating the Bi^(3+)ion and(Mg_(2/3)Ta_(1/3))^(3+)multiple ions into the A-site and B-site of the KNN matrix.As a result,it is confirmed that an ultrahigh recoverable energy storage density(W_(r))of 6.14 J cm^(−3) and a high energy storage efficiency(η)of 87%are realized simultaneously for the(1−x)K_(0.5)Na_(0.5)NbO_(3-x)Bi(Mg_(2/3)Ta_(1/3))O_(3)(KNN-BMT)ceramics at x=0.15 under 720 kV cm^(−1),which surpass most other reported lead-free ceramics.Moreover,the outstanding thermal and frequency stability associated with variation rates of W_(r) andηbelow 10%is verified.All these merits indicate that the doped Bi(Mg_(2/3)Ta_(1/3))O_(3) component leads to optimized energy storage performances.This work may attract significant attention in exploring ceramic dielectric capacitors with excellent properties for energy storage applications.展开更多
文摘BACKGROUND Elderly patients undergoing laparoscopic colorectal cancer surgery are at high risk for hypothermia-related complications.This study explores the efficacy of periop-erative composite insulation interventions in maintaining normothermia and reducing postoperative risks in this vulnerable group.AIM To evaluate the efficacy of perioperative composite insulation in older patients undergoing colorectal cancer surgery.METHODS We selected 100 older patients who underwent laparoscopic surgery for colorectal cancer at Huzhou Central Hospital from September 2023 to April 2024.Using a random number table,patients were divided into a control group and inter-vention group of 50 patients each.After returning to the regular ward,the con-ventional group received traditional insulation intervention measures,while the intervention group received composite insulation nursing intervention.We ob-served and recorded postoperative blood pressure and heart rate changes,as well as postoperative anesthesia recovery time and incidence of complications.RESULTS The statistical results showed significant differences(P<0.05)in heart rate changes and systolic blood pressure between the two groups.There was a sig-nificant change in heart rate between the groups immediately after surgery and at 15 and 30 minutes after surgery(P<0.05).The heart rate and systolic blood pressure of the intervention group were significantly lower than those of the control group at 15 and 30 minutes after surgery(P<0.05).The rewarming time of the intervention group was shorter than that of the control group,and the overall incidence of postoperative complications was significantly lower than that of the control group(P<0.05).CONCLUSION For elderly patients undergoing laparoscopic colorectal cancer surgery,a composite insulation intervention during the perioperative period can maintain body temperature,reduce postoperative stress,and significantly reduce the incidence of hypothermia and related complications.
基金supported by the National Natural Science Foundation of China(Grant No.52172117)the Key Research and Development Program of Shaanxi Province(Grant No.2022GY-347).
文摘Ceramic dielectric materials for energy storage have been widely investigated because of the superior advantages of a rapid charge/discharge speed and ultra-high power density.However,there are no significant breakthroughs in integrative energy storage density and efficiency improvements.In this work,a composition optimization scheme for boosting the synergistic energy storage performances of K_(0.5)Na_(0.5)NbO_(3)(KNN)-based ceramics has been proposed,namely diminishing the grain size to the submicron scale for enhancing the breakdown strength(BDS)and generating nanodomains for reducing the remanent polarization(Pr)by incorporating the Bi^(3+)ion and(Mg_(2/3)Ta_(1/3))^(3+)multiple ions into the A-site and B-site of the KNN matrix.As a result,it is confirmed that an ultrahigh recoverable energy storage density(W_(r))of 6.14 J cm^(−3) and a high energy storage efficiency(η)of 87%are realized simultaneously for the(1−x)K_(0.5)Na_(0.5)NbO_(3-x)Bi(Mg_(2/3)Ta_(1/3))O_(3)(KNN-BMT)ceramics at x=0.15 under 720 kV cm^(−1),which surpass most other reported lead-free ceramics.Moreover,the outstanding thermal and frequency stability associated with variation rates of W_(r) andηbelow 10%is verified.All these merits indicate that the doped Bi(Mg_(2/3)Ta_(1/3))O_(3) component leads to optimized energy storage performances.This work may attract significant attention in exploring ceramic dielectric capacitors with excellent properties for energy storage applications.
