Pressure wave plays an important role in the occurrence of behind armor blunt trauma(BABT),and ballistic gelatin is widely used as a surrogate of biological tissue in the research of BABT.Comparison of pressure wave i...Pressure wave plays an important role in the occurrence of behind armor blunt trauma(BABT),and ballistic gelatin is widely used as a surrogate of biological tissue in the research of BABT.Comparison of pressure wave in the gelatin behind armor for different rifle bullets is lacking.The aim of this study was to observe dynamic changes in pressure wave induced by ballistic blunt impact on the armored gelatin block and to compare the effects of bullet type on the parameters of the transient pressure wave.The gelatin blocks protected with National Institute of Justice(NIJ) class III bulletproof armor were shot by three types of rifle bullet with the same level of impact energy.The transient pressure signals at five locations were recorded with pressure sensors and three parameters(maximum pressure,maximum pressure impulse,and the duration of the first positive phase) were determined and discussed.The results indicated that the waveform and the twin peak of transient pressure wave were not related to the bullet type.However,the values of pressure wave's parameters were significantly affected by bullet type.Additionally,the attenuation of pressure amplitude followed the similar law for the three ammunitions.These findings may be helpful to get some insight in the BABT and improve the structure design of bullet.展开更多
Objective To observe the value of cranial ultrasound for perioperative patients with acute severe traumatic brain injury(sTBI).Methods Data of 55 sTBI patients who underwent craniotomy were retrospectively analyzed.Th...Objective To observe the value of cranial ultrasound for perioperative patients with acute severe traumatic brain injury(sTBI).Methods Data of 55 sTBI patients who underwent craniotomy were retrospectively analyzed.The patients were divided into observation group(n=15)and control group(n=40)according to received perioperative cranial ultrasound or not.The general data and surgical data were compared between groups,and ultrasonic data of observation group were analyzed.Results The proportions of good prognosis 1 and 6 months after operation in observation group were both higher than those in control group,while the incidence of cerebral infarction in observation group was lower than that in control group(all P<0.05).No significant difference of general data nor other surgical data was found between groups(all P>0.05).Acute encephalocele occurred in 1 case in observation group during operation,and cranial ultrasound accurately showed the contralateral secondary epidural hematoma.Increased intracranial pressure in different degrees were found in all 15 cases(15/15,100%)in observation group after operation with transcranial color coded Doppler(TCCD)or transcranial Doppler(TCD),while cerebral vascular spasm was observed in 5 cases(5/15,33.33%),among them 4 cases(4/5,80.00%)were diagnosed cerebral infarction based on CT examination.Conclusion Cranial ultrasound could be used to evaluate changes of sTBI in perioperative period and guide adjusting treatment strategy in time,being valuable for reducing risk of postoperative cerebral infarction and improving prognosis.展开更多
The problem of left-behind children appears under the background of China’s industrialization,urbanization and modernization with the deepening of its reform and opening up. From 1980s,literature began to give attent...The problem of left-behind children appears under the background of China’s industrialization,urbanization and modernization with the deepening of its reform and opening up. From 1980s,literature began to give attention to this special phenomenon.Many writers wrote about children’s psychological trauma in alienated families and social environment,and also gave suggestions on the healing of left-behind children’ psychological trauma in their works. This paper argues that the weakening of family education,the deficiency of schooling and the low social coordination are essential factors that lead to the psychological trauma of left-behind children in rural China. Joint effort from family,school and society contribute to the healing of the trauma,among which,love,writings and speeches are effective ways.展开更多
目的探讨眼针联合经颅直流电刺激(transcranial direct current stimulation,tDCS)对颅脑外伤微意识状态(minimally conscious state,MCS)患者意识恢复的影响。方法选取2020年10月—2023年2月因颅脑外伤住院的MCS患者44例,随机分为试验...目的探讨眼针联合经颅直流电刺激(transcranial direct current stimulation,tDCS)对颅脑外伤微意识状态(minimally conscious state,MCS)患者意识恢复的影响。方法选取2020年10月—2023年2月因颅脑外伤住院的MCS患者44例,随机分为试验组与对照组。对照组予以西医内科以及常规康复治疗,试验组在此基础上予以眼针联合tDCS治疗方案。眼针选取肝区、上焦区、肾区、下焦区,留针30 min;tDCS选取左背外侧前额叶,直流电强度2 mA,治疗20 min。1次/d,5次/周,疗程为4周。通过对比两组治疗前后改良国际昏迷恢复量表(coma recovery scale-revised,CRS-R)评分、哥拉斯改良预后评分量表(Glasgow outcome scale E,GOS-E)评分、哥拉斯昏迷评价量表(Glasgow coma scale,GCS)评分及两组治疗后创伤性颅脑损伤患者生活质量评定量表(quality of life after traumatic brain injury,QOLIBRI)评分以明确两组意识状态、生活质量等方面的改善。结果两组治疗后CRS-R评分、GCS评分、GOS-E评分及QOLIBRI评分均较治疗前提高(均P<0.05),试验组均优于对照组(P<0.05),其中CRS-R子评分中运动、听觉、视觉方面,试验组优于对照组(P<0.05),GCS子评分中运动、睁眼方面,试验组优于对照组(P<0.05)。结论眼针联合tDCS可以促进颅脑外伤后MSC患者的意识恢复,提高其日常生活能力,其疗效优于内科及康复治疗,值得应用及推广。展开更多
基金supported by the National Basic Scientific Research Project(Grant NO.JCKYS2019209C001)National Key Research and Development Program of China(Grant NO.2017YFC0822301&Grant NO.2018YFC0807206)National Natural Science Foundation of China(Grant NO.11772303)。
文摘Pressure wave plays an important role in the occurrence of behind armor blunt trauma(BABT),and ballistic gelatin is widely used as a surrogate of biological tissue in the research of BABT.Comparison of pressure wave in the gelatin behind armor for different rifle bullets is lacking.The aim of this study was to observe dynamic changes in pressure wave induced by ballistic blunt impact on the armored gelatin block and to compare the effects of bullet type on the parameters of the transient pressure wave.The gelatin blocks protected with National Institute of Justice(NIJ) class III bulletproof armor were shot by three types of rifle bullet with the same level of impact energy.The transient pressure signals at five locations were recorded with pressure sensors and three parameters(maximum pressure,maximum pressure impulse,and the duration of the first positive phase) were determined and discussed.The results indicated that the waveform and the twin peak of transient pressure wave were not related to the bullet type.However,the values of pressure wave's parameters were significantly affected by bullet type.Additionally,the attenuation of pressure amplitude followed the similar law for the three ammunitions.These findings may be helpful to get some insight in the BABT and improve the structure design of bullet.
文摘Objective To observe the value of cranial ultrasound for perioperative patients with acute severe traumatic brain injury(sTBI).Methods Data of 55 sTBI patients who underwent craniotomy were retrospectively analyzed.The patients were divided into observation group(n=15)and control group(n=40)according to received perioperative cranial ultrasound or not.The general data and surgical data were compared between groups,and ultrasonic data of observation group were analyzed.Results The proportions of good prognosis 1 and 6 months after operation in observation group were both higher than those in control group,while the incidence of cerebral infarction in observation group was lower than that in control group(all P<0.05).No significant difference of general data nor other surgical data was found between groups(all P>0.05).Acute encephalocele occurred in 1 case in observation group during operation,and cranial ultrasound accurately showed the contralateral secondary epidural hematoma.Increased intracranial pressure in different degrees were found in all 15 cases(15/15,100%)in observation group after operation with transcranial color coded Doppler(TCCD)or transcranial Doppler(TCD),while cerebral vascular spasm was observed in 5 cases(5/15,33.33%),among them 4 cases(4/5,80.00%)were diagnosed cerebral infarction based on CT examination.Conclusion Cranial ultrasound could be used to evaluate changes of sTBI in perioperative period and guide adjusting treatment strategy in time,being valuable for reducing risk of postoperative cerebral infarction and improving prognosis.
基金Social Science Achievement Appraisal Committee Project in Hunan Province:The Revelation of Morrison’s Traumatic Thought to the Psychological Trauma’s Healing of Modern Left-behind Children(XSP17YBZZ001)Scientific Research Project of Education Department of Hunan Province:A study of Female Trauma in Toni Morrison’s novels(16C0237)
文摘The problem of left-behind children appears under the background of China’s industrialization,urbanization and modernization with the deepening of its reform and opening up. From 1980s,literature began to give attention to this special phenomenon.Many writers wrote about children’s psychological trauma in alienated families and social environment,and also gave suggestions on the healing of left-behind children’ psychological trauma in their works. This paper argues that the weakening of family education,the deficiency of schooling and the low social coordination are essential factors that lead to the psychological trauma of left-behind children in rural China. Joint effort from family,school and society contribute to the healing of the trauma,among which,love,writings and speeches are effective ways.
文摘目的探讨眼针联合经颅直流电刺激(transcranial direct current stimulation,tDCS)对颅脑外伤微意识状态(minimally conscious state,MCS)患者意识恢复的影响。方法选取2020年10月—2023年2月因颅脑外伤住院的MCS患者44例,随机分为试验组与对照组。对照组予以西医内科以及常规康复治疗,试验组在此基础上予以眼针联合tDCS治疗方案。眼针选取肝区、上焦区、肾区、下焦区,留针30 min;tDCS选取左背外侧前额叶,直流电强度2 mA,治疗20 min。1次/d,5次/周,疗程为4周。通过对比两组治疗前后改良国际昏迷恢复量表(coma recovery scale-revised,CRS-R)评分、哥拉斯改良预后评分量表(Glasgow outcome scale E,GOS-E)评分、哥拉斯昏迷评价量表(Glasgow coma scale,GCS)评分及两组治疗后创伤性颅脑损伤患者生活质量评定量表(quality of life after traumatic brain injury,QOLIBRI)评分以明确两组意识状态、生活质量等方面的改善。结果两组治疗后CRS-R评分、GCS评分、GOS-E评分及QOLIBRI评分均较治疗前提高(均P<0.05),试验组均优于对照组(P<0.05),其中CRS-R子评分中运动、听觉、视觉方面,试验组优于对照组(P<0.05),GCS子评分中运动、睁眼方面,试验组优于对照组(P<0.05)。结论眼针联合tDCS可以促进颅脑外伤后MSC患者的意识恢复,提高其日常生活能力,其疗效优于内科及康复治疗,值得应用及推广。
