Relationship between mannose-binding protein polymorphism and patients with liver cirrhosis and hepatocellular carcinoma

目的探讨甘露糖结合蛋白(MbP)基因突变与肝硬化及肝癌的关系。方法采用聚合酶链式反应-限制性片段长度多态性(PCr-rflP)方法和实时荧光定量PCr(fQ-PCr)技术针对代偿性肝硬化(CC)患者73例、失代偿性肝硬化(dC)患者78例、肝细胞癌(HCC)患者35例和对照组88例健康者的MbP基因第54位密码子多态性进行检测。结果 HCC组的MbP基因ggC/gAC基因型频率和gAC等位基因频率与对照组比较,差异无统计学意义(P>0.05)。CC组、dC组MbP基因ggC/gAC基因型频率和gAC等位基因频率均显著高于HCC组和对照组(P 0.05).GAC allele frequency was also highest prevalence (36.5%) in DC group than that in CC group and HCC group (P < 0.05).Conclusions The MBP codon 54 polymorphism is associated with the progression of liver cirrhosis and might not play an important role in the development of hepatocellular carcinoma.福建省漳州市科技计划资助项目(Z2010085

Effect of Flue-gas Cleaning Devices on Mercury Emission From Coal-fired Boiler

为研究燃煤锅炉烟气净化设施对汞排放特性的影响,采用Ontario-Hydro方法,对设有催化脱硝、静电除尘、海水脱硫的300MW燃煤锅炉排放烟气中汞的含量与形态进行分析,同时测定锅炉的煤、底渣、飞灰等固体样品以及脱硫塔前后、曝气之后海水样品中的汞含量。实验结果为:烟气中的气态汞占总汞的79.1%以上,脱硝催化剂对汞的价态具有强烈的转化作用,烟气中83.4%的气态Hg0被氧化成气态Hg2+;静电除尘对颗粒态汞的去除率几乎达到100%;在脱硫塔中,海水对烟气中汞的洗脱率高达73.6%,曝气后排放前的海水中含汞量是新鲜海水的5.5倍。研究表明锅炉烟气净化设施对汞的排放特性有着重要的影响。In order to study the effect of flue-gas cleaning devices on mercury emission from coal-fired boiler, Ontario-Hydro method had been applied to determine the mercury concentration and speciation in the flue-gas emitted from a 300MW coal-fired boiler, which was equipped with various pollution control devices, including selective catalyst reduction (SCR) De-NOx system, electrostatic precipitator (ESP), and flue-gas seawater De-SO2 system (FGD). Mercury concentration in raw coal, bottom ash and fly ash of the boiler, seawater at the inlet and outlet of SO2 absorption reactor and the drainage of aeration sink, were also analyzed. The results indicate that the percentage of gaseous mercury in total mercury discharged is more than 79.1%. De-NOx catalyst strongly affects the mercury speciation transformation, showing a conversion rate of 83.4% for Hg0 to Hg2+. The removal efficiency of particulate mercury by ESP is close to 100%. With seawater FGD, the removal efficiency of mercury is as high as 73.6%. The mercury concentration in the seawater of drainage from aeration sink is 5.5 times higher than that in fresh seawater. The study shows that the flue-gas cleaning devices in coal-fired power plant play an important role on mercury emission characterization

一种抗蠕变超高分子量聚乙烯纤维混杂织物及其制备方法

本发明涉及一种抗蠕变超高分子量聚乙烯纤维混杂织物及其制备方法。该混杂织物是由超高分子量聚乙烯纤维和碳纤维等其它有机或无机纤维通过混纺或单纺混编而成，本发明利用纤维的混杂效应，综合各种纤维各自的优点，制备成一种可应用于结构件复合材料的抗蠕变超高分子量聚乙烯纤维混杂织物，改善了单一超高分子量聚乙烯纤维的抗蠕变性能及其与基体材料的粘结性能，该织物可应用于需长时间承受载荷的结构件复合材料

一种竹纤维毡聚丙烯隔声复合材料及其制备方法

本发明涉及一种竹纤维毡聚丙烯隔声复合材料及其制备方法，其材料配方为：竹纤维毡混合物的重量百分比为50-70％，聚丙烯混合物的重量百分比为30-50％；其热压成型工艺是：首先采用合适的工艺用柠檬酸酯对竹纤维毡进行处理，再用配制好的聚丙烯混合物浸润处理好的竹纤维毡，并进行热压成型；本发明所提供的竹纤维毡聚丙烯隔声复合材料，材料的隔声、隔热性能，材料的收缩与扭曲相对较小、尺寸稳定性高、加工性好；其性能明显达到目前已有纤维增强树脂基隔声复合材料的性能，可广泛应用于汽车、建筑、船舶、家居装饰和工业品包装等行业，用以替代类似玻璃纤维复合材料等早期隔声材料；本发明所提供的竹纤维毡聚丙烯隔声复合材料的制备方法，工艺简单，在常规设备上即可实施

A study on the correlation of care knowledge, behavior, self-efficacy and care burden of informal nursing staff in community elderly with long-term bed rest and s kin pressure injuries (长期卧床伴皮肤压力性损伤的社区老年人非正式护理人员的照顾知识、行为、自我效能及照顾负担的相关性研究)

Objective To understand the knowledge, skill status, general self-efficacy and the correlation of care burden of community elderly patients with skin pressure injuries and their informal caregivers. Methods A total of 280 community elderly informal nurses from 8 tertiary hospitals, 1 community hospital and 1 social medical institution in Shanghai were assessed with general information, knowledge questionnaire, behavior questionnaire, General Self-Efficacy Scale and Caregiver Burden Scale. Results The average score of informal nursing staff's care knowledge and behavior was (17. 25±2. 90) and (35. 27±6. 82) respectively, and the score of self-efficacy was (2. 33±0. 61). The score of caregiver's burden was relatively high ( 65. 12±14. 93). The general self-efficacy of caregivers on pressure injuries was positively correlated with the total score and all dimensions of care behavior (P＜0. 001). The general self-efficacy and co- caregivers, development limitation, emotional burden, average time spent caring for patients every day and caregiver knowledge questionnaire score were the influencing factors of care behavior of pressure injuries. Conclusion The level of nursing knowledge and behavior of informal nursing staff needs to be improved, the level of self-efficacy is general, and the burden of care is heavy. It is suggested to improve their knowledge, skills, behavior and self-efficacy from various aspects, the ultimate goal of promoting the healing and reducing the recurrence of stress injury of the community elderly is to build up the confidence of coping with care work. (目的 了解长期卧床伴皮肤压力性损伤的社区老年患者及其非正式护理人员主要照顾者的知识、技能现状、一般自我效能及照顾负担的相关性。方法 对上海8家三级医院、1家社区医院、1家社会办医机构合计280位长期卧床社区老年人及其非正式护理人员进行一般资料、压力性损伤的知识问卷、行为问卷、一般自我效能量表及照顾者负担量表的测评。结果 非正式护理人员照顾知识及行为得分平均分情况为(17. 25±2. 90)分及(35. 27±6. 82)分, 自我效能得分为(2. 33±0. 61)分; 照顾者负担得分较高为(65. 12±14. 93)分; 照顾者压力性损伤一般自我效能与照顾行为总分及各维度均呈现显著正相关(P＜0. 001); 一般自我效能、是否有共同照顾者、发展受限性、情感性负担、平均每天照顾患者耗时及照护者知识问卷得分6个变量是压力性损伤照顾行为的影响因素。结论 非正式护理人员照顾知识及行为水平有待提高, 自我效能水平一般, 照顾负担较重。建议从多种方面入手, 提高其知识技能行为水平及自我效能水平, 树立起应对照顾工作的信心, 从而达到促进社区老年人压力性损伤愈合及降低再发生情况的最终目标。

A study on the correlation of care knowledge, behavior, self-efficacy and care burden of informal nursing staff in community elderly with long-term bed rest and s kin pressure injuries (长期卧床伴皮肤压力性损伤的社区老年人非正式护理人员的照顾知识、行为、自我效能及照顾负担的相关性研究)

Objective To understand the knowledge, skill status, general self-efficacy and the correlation of care burden of community elderly patients with skin pressure injuries and their informal caregivers. Methods A total of 280 community elderly informal nurses from 8 tertiary hospitals, 1 community hospital and 1 social medical institution in Shanghai were assessed with general information, knowledge questionnaire, behavior questionnaire, General Self-Efficacy Scale and Caregiver Burden Scale. Results The average score of informal nursing staff's care knowledge and behavior was (17. 25±2. 90) and (35. 27±6. 82) respectively, and the score of self-efficacy was (2. 33±0. 61). The score of caregiver's burden was relatively high ( 65. 12±14. 93). The general self-efficacy of caregivers on pressure injuries was positively correlated with the total score and all dimensions of care behavior (P＜0. 001). The general self-efficacy and co- caregivers, development limitation, emotional burden, average time spent caring for patients every day and caregiver knowledge questionnaire score were the influencing factors of care behavior of pressure injuries. Conclusion The level of nursing knowledge and behavior of informal nursing staff needs to be improved, the level of self-efficacy is general, and the burden of care is heavy. It is suggested to improve their knowledge, skills, behavior and self-efficacy from various aspects, the ultimate goal of promoting the healing and reducing the recurrence of stress injury of the community elderly is to build up the confidence of coping with care work. (目的 了解长期卧床伴皮肤压力性损伤的社区老年患者及其非正式护理人员主要照顾者的知识、技能现状、一般自我效能及照顾负担的相关性。方法 对上海8家三级医院、1家社区医院、1家社会办医机构合计280位长期卧床社区老年人及其非正式护理人员进行一般资料、压力性损伤的知识问卷、行为问卷、一般自我效能量表及照顾者负担量表的测评。结果 非正式护理人员照顾知识及行为得分平均分情况为(17. 25±2. 90)分及(35. 27±6. 82)分, 自我效能得分为(2. 33±0. 61)分; 照顾者负担得分较高为(65. 12±14. 93)分; 照顾者压力性损伤一般自我效能与照顾行为总分及各维度均呈现显著正相关(P＜0. 001); 一般自我效能、是否有共同照顾者、发展受限性、情感性负担、平均每天照顾患者耗时及照护者知识问卷得分6个变量是压力性损伤照顾行为的影响因素。结论 非正式护理人员照顾知识及行为水平有待提高, 自我效能水平一般, 照顾负担较重。建议从多种方面入手, 提高其知识技能行为水平及自我效能水平, 树立起应对照顾工作的信心, 从而达到促进社区老年人压力性损伤愈合及降低再发生情况的最终目标。