To position personnel in mines, the study discussed in this paper built on the tunnel personnel positioning method on the basis of both TOA and location-finger print(LFP) positioning. Given non-line of sight(NLOS) tim...To position personnel in mines, the study discussed in this paper built on the tunnel personnel positioning method on the basis of both TOA and location-finger print(LFP) positioning. Given non-line of sight(NLOS) time delay in signal transmission caused by facilities and equipment shielding in tunnels and TOA measurement errors in both LFP database data and real-time data, this paper puts forth a database data de-noising algorithm based on distance threshold limitation and modified mean filtering(MMF), as well as a real-time data suppression algorithm based on speed threshold limitation and MMF.On this basis, a nearest neighboring data matching algorithm based on historical location and the speed threshold limitation is used to estimate personnel location and realize accurate personnel positioning.The results from both simulation and the experiment suggest that: compared with the basic LFP positioning method and the method that only suppresses real-time data error, the tunnel personnel positioning methods based on TOA and modified LFP positioning permits effectively eliminating error in TOA measurement, making the measured data close to the true positional data, and dropping the positioning error:the maximal positioning error in measurements from experiment drops by 9 and 3 m, respectively, and the positioning accuracy of 3 m is achievable in the condition used in the experiment.展开更多
BACKGROUND Schizophrenia is a common and severe mental disorder characterized by severe thought disturbances,hallucinations,delusions,and emotional instability.For some patients,conventional treatment methods may not ...BACKGROUND Schizophrenia is a common and severe mental disorder characterized by severe thought disturbances,hallucinations,delusions,and emotional instability.For some patients,conventional treatment methods may not effectively alleviate symptoms,necessitating the use of alternative therapeutic approaches.Modified electroconvulsive therapy(MECT)is an effective treatment modality for schizophrenia,inducing anti-depressive and antipsychotic effects through the stimulation of brain electrical activity.AIM To explore the impact of psychological nursing intervention(PNI)before and after MECT on the efficacy and quality of life of patients with schizophrenia.METHODS Eighty patients with schizophrenia who received MECT treatment from 2021 to 2023 were randomly divided into two groups:The intervention group(n=40)and the control group(n=40).The intervention group received PNI before and after MECT,while the control group received routine nursing care.The efficacy of MECT was evaluated by the Positive and Negative Syndrome Scale(PANSS)and the Clinical Global Impression Scale(CGI)before and after the treatment.The quality of life was assessed by the Short Form 36 Health Survey(SF-36)after the treatment.RESUITS The intervention group had significantly lower scores of PANSS and CGI than the control group after the treatment(P<0.05).The intervention group also had significantly higher scores of SF-36 than the control group in all domains except physical functioning(P<0.05).CONCLUSION PNI before and after MECT can improve the efficacy and quality of life of patients with schizophrenia.It is suggested that nurses should provide individualized and comprehensive psychological care for patients undergoing MECT to enhance their recovery and well-being.展开更多
The stable coordinated metallo-complexes based on 2,2′:6′,2″-terpyridine(tpy)and its derivatives have been widely researched for various wide-ranging applications in photoelectronics,catalysis,sensor,photoluminesce...The stable coordinated metallo-complexes based on 2,2′:6′,2″-terpyridine(tpy)and its derivatives have been widely researched for various wide-ranging applications in photoelectronics,catalysis,sensor,photoluminescence,and so on.However,the most reported studies ignored the comprehensive comparison between structures modified by different positions and photoluminescence.Herein,we design a series of metallo-complexes which were assembled with tpy substituted triphenylamine(TPA)at different positions and metal ions and explored their photophysical properties.In the solution state,MLE_(2)based on the 5,5″-positions modification showed the highest PLQYs and PL intensity.With the increase of solvent polarity,MLB2exhibit the largest redshift.In the solid state,from MLA_(2)to MLE_(2),the emission colours are gradually red-shifted from yellow to red.The findings in this work may pave a new way to design functional metallo-complexes,not just for PL properties.展开更多
目的探讨改良俯卧位通气对清醒病毒性肺炎患者呼吸循环、康复指标、并发症的影响。方法选取2021年8月—2023年6年就诊的134例病毒性肺炎,按照随机数字表法分为研究组、对照组,各67例,对照组采用常规俯卧位通气,研究组采用改良俯卧位通...目的探讨改良俯卧位通气对清醒病毒性肺炎患者呼吸循环、康复指标、并发症的影响。方法选取2021年8月—2023年6年就诊的134例病毒性肺炎,按照随机数字表法分为研究组、对照组,各67例,对照组采用常规俯卧位通气,研究组采用改良俯卧位通气。比较2组康复指标、血气指标[氧合指数(PaO_(2)/FiO_(2))、动脉血二氧化碳分压(PaCO_(2))、动脉血氧分压(PaO_(2))、血氧饱和度(SpO_(2))]、血流动力学指标[心率(HR)、中心静脉压(CVP)、平均动脉压(MAP)]、呼吸功能指标[平台压(Pplat)、气道峰压(Ppeak)、平均气道压(Pmean)]、炎症指标[白细胞介素-6(IL-6)、粒细胞-巨噬细胞集落刺激因子(GM-CSF)、肿瘤坏死因子-α(TNF-α)]、并发症及压力性损伤发生率。结果研究组住院时间短于对照组(P<0.05);2组俯卧2、4、8、12、16 h PaCO_(2)、PaO_(2)、PaO_(2)/FiO_(2)、SpO_(2),以及俯卧24、36 h时Ppeak、Pmean、Pplat、GM-CSF、IL-6、TNF-α均较俯卧前得以明显改善(P<0.05),但2组间比较差异无统计学意义(P>0.05);2组组间、组内不同时间点CVP、MAP、HR比较,差异无统计学意义(P>0.05);研究组并发症总发生率2.99%(2/67)低于对照组11.94%(8/67),压力性损伤发生率2.99%(2/67)低于对照组13.43%(9/67)(P<0.05)。结论在清醒病毒性肺炎患者中,改良俯卧位通气可达到与常规俯卧位通气相近的辅助治疗效果,能改善机体氧合功能、呼吸循环功能,降低并发症及压力性损伤发生风险,加速病情康复。展开更多
基金Project supports from the National Science Foundation of China(No.51134024)the National High Technology Research and development Program of China(No.2012AA062203)are acknowledged
文摘To position personnel in mines, the study discussed in this paper built on the tunnel personnel positioning method on the basis of both TOA and location-finger print(LFP) positioning. Given non-line of sight(NLOS) time delay in signal transmission caused by facilities and equipment shielding in tunnels and TOA measurement errors in both LFP database data and real-time data, this paper puts forth a database data de-noising algorithm based on distance threshold limitation and modified mean filtering(MMF), as well as a real-time data suppression algorithm based on speed threshold limitation and MMF.On this basis, a nearest neighboring data matching algorithm based on historical location and the speed threshold limitation is used to estimate personnel location and realize accurate personnel positioning.The results from both simulation and the experiment suggest that: compared with the basic LFP positioning method and the method that only suppresses real-time data error, the tunnel personnel positioning methods based on TOA and modified LFP positioning permits effectively eliminating error in TOA measurement, making the measured data close to the true positional data, and dropping the positioning error:the maximal positioning error in measurements from experiment drops by 9 and 3 m, respectively, and the positioning accuracy of 3 m is achievable in the condition used in the experiment.
文摘BACKGROUND Schizophrenia is a common and severe mental disorder characterized by severe thought disturbances,hallucinations,delusions,and emotional instability.For some patients,conventional treatment methods may not effectively alleviate symptoms,necessitating the use of alternative therapeutic approaches.Modified electroconvulsive therapy(MECT)is an effective treatment modality for schizophrenia,inducing anti-depressive and antipsychotic effects through the stimulation of brain electrical activity.AIM To explore the impact of psychological nursing intervention(PNI)before and after MECT on the efficacy and quality of life of patients with schizophrenia.METHODS Eighty patients with schizophrenia who received MECT treatment from 2021 to 2023 were randomly divided into two groups:The intervention group(n=40)and the control group(n=40).The intervention group received PNI before and after MECT,while the control group received routine nursing care.The efficacy of MECT was evaluated by the Positive and Negative Syndrome Scale(PANSS)and the Clinical Global Impression Scale(CGI)before and after the treatment.The quality of life was assessed by the Short Form 36 Health Survey(SF-36)after the treatment.RESUITS The intervention group had significantly lower scores of PANSS and CGI than the control group after the treatment(P<0.05).The intervention group also had significantly higher scores of SF-36 than the control group in all domains except physical functioning(P<0.05).CONCLUSION PNI before and after MECT can improve the efficacy and quality of life of patients with schizophrenia.It is suggested that nurses should provide individualized and comprehensive psychological care for patients undergoing MECT to enhance their recovery and well-being.
基金financially supported by the National Natural Science Foundation of China(Nos.22271116 and 22071079 for M.W)Jilin Provincial Science and Technology Department(No.20230101027JC for M.W.)the fellowship of China Postdoctoral Science Foundation(No.2021M701383 for J.S)。
文摘The stable coordinated metallo-complexes based on 2,2′:6′,2″-terpyridine(tpy)and its derivatives have been widely researched for various wide-ranging applications in photoelectronics,catalysis,sensor,photoluminescence,and so on.However,the most reported studies ignored the comprehensive comparison between structures modified by different positions and photoluminescence.Herein,we design a series of metallo-complexes which were assembled with tpy substituted triphenylamine(TPA)at different positions and metal ions and explored their photophysical properties.In the solution state,MLE_(2)based on the 5,5″-positions modification showed the highest PLQYs and PL intensity.With the increase of solvent polarity,MLB2exhibit the largest redshift.In the solid state,from MLA_(2)to MLE_(2),the emission colours are gradually red-shifted from yellow to red.The findings in this work may pave a new way to design functional metallo-complexes,not just for PL properties.
文摘目的探讨改良俯卧位通气对清醒病毒性肺炎患者呼吸循环、康复指标、并发症的影响。方法选取2021年8月—2023年6年就诊的134例病毒性肺炎,按照随机数字表法分为研究组、对照组,各67例,对照组采用常规俯卧位通气,研究组采用改良俯卧位通气。比较2组康复指标、血气指标[氧合指数(PaO_(2)/FiO_(2))、动脉血二氧化碳分压(PaCO_(2))、动脉血氧分压(PaO_(2))、血氧饱和度(SpO_(2))]、血流动力学指标[心率(HR)、中心静脉压(CVP)、平均动脉压(MAP)]、呼吸功能指标[平台压(Pplat)、气道峰压(Ppeak)、平均气道压(Pmean)]、炎症指标[白细胞介素-6(IL-6)、粒细胞-巨噬细胞集落刺激因子(GM-CSF)、肿瘤坏死因子-α(TNF-α)]、并发症及压力性损伤发生率。结果研究组住院时间短于对照组(P<0.05);2组俯卧2、4、8、12、16 h PaCO_(2)、PaO_(2)、PaO_(2)/FiO_(2)、SpO_(2),以及俯卧24、36 h时Ppeak、Pmean、Pplat、GM-CSF、IL-6、TNF-α均较俯卧前得以明显改善(P<0.05),但2组间比较差异无统计学意义(P>0.05);2组组间、组内不同时间点CVP、MAP、HR比较,差异无统计学意义(P>0.05);研究组并发症总发生率2.99%(2/67)低于对照组11.94%(8/67),压力性损伤发生率2.99%(2/67)低于对照组13.43%(9/67)(P<0.05)。结论在清醒病毒性肺炎患者中,改良俯卧位通气可达到与常规俯卧位通气相近的辅助治疗效果,能改善机体氧合功能、呼吸循环功能,降低并发症及压力性损伤发生风险,加速病情康复。
