P(VdF-HFP)型聚合物电解质的结构和导电性研究

制备了以偏氟乙烯与六氟丙烯共聚物[P(VdF-HFP)]为基质的聚合物电解质,并测定了该类电解质的电导率。讨论了锂盐浓度、增塑剂配比、纳米SiO_2粉末掺入等对离子电导率的影响。结果表明:以P(VdF-HFP)为基质的电解质室温电导率最高达到2.81×10~(-3)S/cm。利用红外、扫描电镜、X射线衍射分析对聚合物电解质的结构和性能进行了表征,探讨了聚合物电解质膜的各组分间相互作用的规律。     

原位复合法制备(PEO)8LiClO4/TiO2聚合物电解质的研究

以聚氧化乙烯/高氯酸锂复合物[(PEO)8LiClO4]为基体,通过钛酸丁酯的水解缩合反应在其中原位生成TiO2,制备了(PEO)8LiClO4/TiO2复合聚合物电解质,采用SEM、DSC和交流阻抗方法研究了聚合物电解质的形态、玻璃化转变温度(Tg)、结晶度(Xc)和离子导电性能.结果表明原位生成的TiO2在基体中分散均匀,加入TiO2后聚合物电解质体系的Tg和Xc均有所降低,而电导率明显提高,当TiO2添加量为ω=0.05时电导率达到最大值5.5×10-5S·cm-1(20℃).     

云南省某县甲、乙两村改水前后村民尿氟值比较

目的比较改水前后饮用水氟含量的变化对尿氟含量的影响,评价云南某县甲村、乙村改水降氟对地方性氟中毒的防治效果.方法按照《中华人民共和国卫生行业标准GB/T5750.5-2006》采用氟离子电极法检测改水后的饮用水氟含量;按照《中华人民共和国卫生行业标准WS/T89-1996》采用氟离子电极法检测改水后村民尿氟含量,数据分析采用SPSS软件.结果甲村改水后的水氟值明显低于改水前的水氟值(P<0.05),乙村改水后的水氟值与改水前的水氟值未发现差异无统计学意义(P>0.05);甲村、乙村村民改水前后的尿氟值均差异无统计学意义(P>0.05).结论改水后甲村饮用水氟值达标,但尿氟值与改水前无明显变化;改水后乙村饮用水氟值虽有下降,但仍未达到国家饮用水标准,尿氟值与改水前也无明显变化.     

地氟醚对老年全麻病人肾功能的影响

地氟醚是一种新型的卤族氟化吸入麻醉药 ,溶解度低 ,苏醒快 ,且对血流动力学影响小 ,已广泛应用于临床麻醉。通过对正常志愿者的研究显示 ,吸入地氟醚后血清氟浓度未超过吸入前水平 ,且未发现对肾功能有明显影响 ,但其对老年病人肾功能的影响尚无报道 ,故对此进行探讨。1　对象与方法1.1　对象　选择本院 2 0 0 0年 3～ 12月 30例ＡＳＡＩ -Ⅱ级、择期行上腹部手术患者 ,男 19例 ,女 11例 ;年龄 6 8.5± 3.1岁 ;体重 6 1.9± 4.9ｋｇ ;身高16 8± 9.1ｃｍ ;术前心、肺、肝、肾功能及电解质均正常。1.2　方法　术前 0 .5ｈ肌注鲁米那0 .1ｇ ,…     

用哈克流变仪模拟D3F反应挤出阴离子开环聚合反应

采用哈克流变仪模拟1,3,5-三甲基-1,3,5-三(3′,3′,3′-三氟丙基)环三硅氧烷(D3F)阴离子开环聚合的反应挤出试验.通过凝胶渗透色谱法(GPC)测定其绝对分子量,并通过红外光谱(FT-IR)和核磁共振氢谱(1H-NMR)表征其结构.研究表明:在促进剂乙酸乙酯作用下,120 ℃下反应4 min可得到数均分子量为2.45×105的氟硅聚合物,反应温度、时间对制备氟硅聚合物有一定的影响.     

氙气对比异氟醚、氙气对比七氟醚麻醉后苏醒特征的系统评价

目的用Meta的方法评价氙气对比异氟醚、氙气对比七氟醚麻醉后患者苏醒时间、术后恶心呕吐发生率以及认知功能等特征。方法计算机检索Pub Med、EMBASE、SCI、The Cochrane图书馆、CBM、CNKI、万方数据库和维普数据库,纳入比较氙气对比异氟醚、氙气对比七氟醚麻醉后苏醒特征的随机对照试验,使用Cochrane Handbook 5.0推荐的＂偏倚风险评估＂工具对纳入研究进行方法学质量评价,用Rev Man5.1.7软件进行Meta分析。结果纳入6个随机对照试验,共计449例患者。Meta分析结果显示：1与异氟醚相比,氙气麻醉后睁眼时间较短[标准化均数差-1.49,95%可信区间（-2.31,-0.68）];氙气麻醉后拔管时间较短[标准化均数差-2.04,95%可信区间（-3.30,-0.78）];氙气麻醉恢复指数较大[标准化均数差1.20,95%可信区间（0.52,1.87）];氙气和异氟醚麻醉苏醒5分钟后Aldrete评分差异无统计学意义[标准化均数差3.14,95%可信区间（-0.49,6.76）]。2与七氟醚相比,氙气麻醉后睁眼时间较短[标准化均数差-1.54,95%可信区间（-2.00,-1.07）];氙气麻醉后拔管时间较短[标准化均数差-1.80,95%可信区间（-2.39,-1.20）];氙气麻醉后恢复方向感时间较短[标准化均数差-2.20,95%可信区间（-3.84,-0.56）];氙气麻醉后恢复倒数数字时间较短[标准化均数差-2.19,95%可信区间（-2.87,-1.51）];氙气对比七氟醚麻醉术后恶心呕吐发生率差异无统计学意义[相对危险度1.26,95%可信区间（0.66,2.39）]。结论与异氟醚和七氟醚相比,氙气麻醉后苏醒迅速;氙气麻醉与异氟醚相比,患者的Aldrete评分没有区别;氙气麻醉与七氟醚相比,患者术后恶心呕吐发生率没有差异,氙气麻醉术后认知能力恢复较早。     

有机氟中毒患儿血钙、血糖变化的临床意义

目的　探讨有机氟中毒患儿的血糖、血钙变化。方法　对 68例不同程度的有机氟中毒患儿在急性期和恢复期分别进行血清电解质、血糖的测定并进行比较。结果　有机氟中毒患儿在急性期血清钙降低 ,尤以游离钙降低显著 ,血糖增高 ,且变化的程度与病情有关。血K+、Na+、Cl- 离子无明显变化。恢复期血清电解质、血糖正常。结论　有机氟中毒患儿血钙、血糖的变化与病情有关 ,补钙治疗、控制血糖是治疗的重要措施     

多巴胺表面改性碳纤维对PVDF/CF复合材料性能的影响

对碳纤维（CF）进行去浆处理,再利用多巴胺对CF改性,得到多巴胺改性CF（DARCF）,添加马来酸酐接枝聚偏氟乙烯（PVDF-g-MAH）,制备了DARCF增强PVDF-g-MAH复合材料（PVDF-g-MAH/DARCF）。采用原子力显微镜（AFM）、X射线光电子能谱（XPS）和傅里叶变换红外光谱（FT-IR）对CF表面的粗糙度、结构和官能团进行表征。采用扫描电镜（SEM）、界面接触角测试和力学性能测试对复合材料的界面、力学性能进行测试。结果表明：改性之后,DARCF表面粗糙度增加,与树脂的界面结合强度提高,PVDF-g-MAH/DARCF的弯曲强度和模量比未改性的PVDF/CF分别提高了71.3%和36.9%。     

异丙酚与安氟醚或七氟醚静吸复合麻醉对肝功能的影响

目的:观察异丙酚与安氟醚和七氟醚静吸复合麻醉对肝功能的影响.方法:32例择期非肝胆系统手术的全麻病人,随机分为4组,每组8例,分别给予安氟醚麻醉(A组)、七氟醚麻醉(B组)、异丙酚-安氟醚麻醉(C组)、异丙酚-七氟醚麻醉(D组).其中A、B组为对照组,C、D组为观察组.分别于麻醉前、麻醉诱导后2 h和术后3 d采集静脉血测血清丙氨酸转氨酶(ALT)、碱性磷酸酶(ALP)、白蛋白(ALB)、总胆红素(TBIL).结果:A组和B组在术后3 d ALT值高于麻醉前(P<0.01),但未超出正常值范围,二组间比较差异无显著性(P>0.05);4组患者在麻醉诱导后2 h ALB值低于麻醉前(P<0.05),但术后3 d各组的ALB值均恢复正常,而且各组间比较差异均无显著性(P>0.05);其余各项指标全程均无显著变化(P>0.05).结论:安氟醚和七氟醚两者均有潜在的、轻度的肝毒性;临床麻醉剂量的异丙酚能有效防止转氨酶的升高,对安氟醚及七氟醚所致肝脏损伤具有明显的保护作用;异丙酚复合安氟醚、七氟醚麻醉,是一种理想的静吸复合麻醉方法.     

地方性氟中毒病区与非病区8-12岁儿童氟斑牙及与血清化学元素的关系

目的了解8-12岁儿童氟斑牙患病情况,探讨化学元素与氟斑牙的关系。方法采用现况调查的方法对104例8-12岁儿童进行氟斑牙调查,了解儿童氟斑牙患病情况,依据Dean法对儿童氟斑牙进行诊断和分度,应用IRIS IntrepidⅡXSP ICP光谱仪测定血清钙(Ca)、铜(Cu)、铁(Fe)、镁(Mg)、磷(P)、锌(Zn)的含量。结果地方性氟中毒重病区、中病区、对照区8-12岁儿童氟斑牙检出率分别为93.0%,81.5%和11.8%。血清Ca、Cu、Fe、Mg、P、Zn在该三组儿童体内的分布不同(FCa=12.150,P<001;FCu=3.326,P<0.05;FFe=11.893,P<001;FMg=13.053,P<001;FP=3.131,P<0.05;FZn=28.019,P<001)。钙含量中病区低于对照区(P<0.001);铁含量中病区高于对照区(P<0.001);镁含量重病区、中病区均低于对照区(P<0.001);磷含量重病区低于对照区(P<0.05);锌含量重病区高于对照区,中病区低于对照区(P<0.05)。氟斑牙患者镁含量低于正常儿童(t=2.14,P<0.05),其余化学元素在两组的分布未见有统计学差异。结论饮水氟浓度越高,氟斑牙检出率越高。钙和镁对氟斑牙的发生有拮抗作用。     

Acupuncture Treatment of Vomiting

CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.     

Qiu Baoguo''''s Experience in Treating Consumptive Syndromes after Radio-Chemotherapies

Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.     

Insomnia Due to Deficiency of Both the Heart and Spleen Treated by Acupuncture-Moxibustion and Chinese Tuina

OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.     

Analysis of CK-19,PDX-1,Nestin,Ngn3 in different donor islet purity in rats

Objective: To investigate if there are the CK-19, PDX-1, Nestin, Ngn3 positive cells in the donor islets of different purity in rats. Methods: Thirty male adult SD rats were randomly divided into 3 groups. Islets were isolated using digestion by ductal injection of collagenase. Group Ⅰ (n=10): Separating cell preparations were not purified, Group Ⅱ(n=10): Islet sediment was purified with 25% Ficoll400 ,Group Ⅲ (n=10): Islet sediment was purified with 25% and 11% Ficoll-400. The levels of protein of CK-19, PDX-1, Nestin and Ngn3 were detected by immunohistochemistry and the mRNA of CK-19, PDX-1, Nestin, Ngn3 was amplified by RT-PCR. Results: After two different purification methods applied, three islet preparations of different purities were obtained. The difference of islet purity was significant among various groups (P＜0.05). Compared with group Ⅱ and group Ⅲ,the protein and mRNA of CK-19, PDX-1, Nestin,Ngn3 were both higher in group Ⅰ; group Ⅲ was poorly expressed. Conclusions: The three different islet purity donor islet have different CK-19, PDX-1, Nestin, Ngn3 positive cells within them, indicating that there are some islet stem cells in the purified donor islet.     

A preliminary screening study on the associated proteins in human psoriasis vulgaris by serum proteomics technologies

Objective：To investigate the optimum screening conditions of associated proteins in human psoriasis vulgaris by serum proteomics technique, and to screen the different expression proteins related with psoriasis vulgaris. Methods：Serum samples of peripheral blood were collected from newly diagnosed psoriasis vulgaris patients in the clinic, and 20 matched healthy persons. Serum albumin IgG was removed by filtering with ProteoExtract Albumin/IgG. After comparative proteomics analysis the different protein spots were identified using 2-DE and MS. Results ：Electrophoresis figures with high resolution and reproducibility were obtained. Three different expression proteins were found only in the serum from psoriasis vulgaris patients, while nine other different proteins expressing from healthy volunteers. Conclusion：The protein expression was different in the serum between the psoriasis vulgaris patients and healthy volunteers. It was hoped that we could find the biomarkers related to psoriasis vulgaris by using proteomics.     

A CASE OF HUGE GASTRIC DISOPYROBEZOAR

PYTOBEZOARS are common bezoars in gastrontestinal tract, commonly seen in stomach and mall intestine,1but huge disopyrobezoars are     

Acupuncture Treatment of Chest Bi Syndrome

CASE HISTORY A male,a retired officer of 61 years old,paid his first visit on May 12,2006.The patient stated that 2 weeks before he suddenly got paroxysmal precordial choking pain,with irregular attacks.Each attack would last several seconds to several minutes.The attack was accompanied with heavy oppressed sensation in the precordial region,palpitation,lassitude,and in severe cases,sweating,which was once diagnosed by a hospital as'coronary heart disease'.Recalling the case history,the patient said that several days before he got angry with others because of some affairs in work,and he was not so used to the life pattern since he had just retired from his busy working post.At usual times,he was quick tempered and peevish.In recent days,he had poor appetite,and loose stool.     

Instructions to Contributors

The English edition of Chinese Journal of Integrative Medicine is edited and published by the Chinese Journal of Integrated Traditional and Western Medicine Press.Original scientific papers of advanced clinical and experimental medicine in the field of complementary/alternative medicine or integrative medicine are expected.     

Development Is A High Level Inheritance for China Time-honored Brand Products

<正>As culture is the soul of a nation,the three books,"History of Chinese Philosophy,""History of Chinese Culture"and"History of Chinese Science and Technology"have demonstrated the superiority of our great Chinese culture,and its significant impact in the field of international culture.Both core value and practical value of the Chinese culture are very clear,reflected in the views of universe,nature,life,health,disease,and therapy and related considerations,concepts,and technical methods.