The Effect of Labor Participation on Depressive Symptoms of the Elderly

Under the background of China's active aging policy, the labor participation of the elderly is encouraged. Whether labor participation is more conducive to inhibit the occurrence of depression symptoms of the elderly and promote their mental health is gradually attracting social attention. Based on the data of China's health and elderly care follow-up survey (CHARLS) in 2015, this paper analyzes the influence of labor participation on depressive inhibition of the elderly. The results show that gender, marital status, education and other demographic and social factors have a statistically significant impact on the depressive symptoms of the elderly. Labor participation has a negative impact on the depressive symptoms of the elderly. Compared with non-labor participation, the level of depressive symptoms of the elderly who engaged in labor participation was lower. Labor participation had a different impact on gender diversity, and the impact of labor participation on depressive symptoms of the female was higher than that of the male. Finally, this paper discusses the influence and difference of labor participation on depressive symptoms of the elderly, and points out the problems for further study in the future.     

利用EM处理垃圾渗沥液的效果研究

利用EM生物强化技术与传统的生物治理技术相结合的方式对垃圾渗沥液进行处理 ,结果表明 :①EM菌剂处理垃圾渗沥液的最佳浓度VEM/V水 为 1/ 2 0 0 0～ 1/ 10 0 0 ;pH范围为6～ 7,环境温度为 2 5～ 35℃ ;好氧处理优于厌氧处理。②EM菌剂在活性污泥和生物膜系统中 ,能够加快启动速度 ,增强系统稳定性 ,明显提高CODCr、BOD5去除率。     

α_2HS-糖蛋白、α_1-抗胰蛋白酶和GC的同步分型与应用

作者应用等电聚焦技术,建立了同步检测α_2HS-糖蛋白表型,α_1-抗胰蛋白酶亚型和GC亚型的方法。本法累计个人识别机率为0.9701,累计非父排除率为0.5811、是国内外同步电泳分型史鉴别效率最高的方法。在11例亲子鉴定中应用本法取得了满意结果。     

Gc蛋白的分离纯化

本文报道Gc蛋白的分离与纯化.人血浆经DEAE-Sephadex-A50, Sephadex G100和DEAE-Sephadex-A50三次柱层析即可获得纯化Gc.纯化Gc经PAGE, SDS-PAGE和免疫电泳等证明,其纯度和特异性均符合要求.     

抗GC血清的制备及鉴定

作者用分离纯化的GC蛋白免疫新西兰兔制备了抗GC血清。鉴定结果表明,抗GC血清与进口商品抗GC血清特异性相同;与人血清其他蛋白没有交叉反应。琼脂双向扩散法测得抗血清效价为128;可检出GC蛋白的最低浓度为3.1μg/ml。免疫电泳法可测出入血清三种GC表型。     

MFB式有源双调滤波电路

针对一阶有源滤波器APF中存在的不足,提出了一种基于MFB的有源双调滤波器设计方法,避免了Q与BW之间的矛盾。详细分析了MFB带通滤波器的传递函数及电路参数选择。     

Fragrance transfer between fabrics for forensic reconstruction applications

Sexual assault is a serious crime that often has low conviction rates. Recent literature has demonstrated that there is potential for fragrances to be valuable in forensic reconstructions where there has been contact between individuals. However, developing appropriate evidence bases for understanding the nature of fragrance transfer in these contexts is needed. This article presents three experiments that address the transfer process of fragrances that have been transferred from a primary piece of fabric onto a secondary piece of fabric, in a manner that could occur during an assault. The three variables studied were the ageing time of the fragrances on the first fabric prior to transfer, the contact time between the two fabrics, and lastly the fabric type (of the primary material and the recipient material). The transfer was evaluated using a validated solid phase micro-extraction gas chromatography–mass spectrometry (SPME GC–MS) method. The findings demonstrated that all three variables had an impact on the transfer of fragrances between clothing fabrics. Generally, lower volatility compounds were transferred and recovered in larger amounts than higher volatility compounds. All fragrance compounds were successfully recovered from a secondary piece of fabric even when the contact time was as short as 10 s, and even when the perfume was aged on the primary fabric for as long as 48 h. The nature of the fragrance transfer also depended on the fabric type, so that a clear discrimination was observed between the fragrance transfer that occurred onto a natural fabric (cotton) and onto a synthetic fabric (polyester).     

霍山石斛药材HPLC指纹图谱研究

目的 建立霍山石斛(Dendrobium huoshanense)药材的HPLC指纹图谱,为进一步提高霍山石斛药材的质量提供依据。方法 霍山石斛药材甲醇提取物的分析采用Agilent C18色谱柱（4.6 mm×250 mm,5 μm）;流动相甲醇-0.1%磷酸溶液,梯度洗脱;流量为1.0 mL/min;检测波长240 nm;柱温30 ℃。再通过聚类分析、主成分分析和PCA载荷图进行评价。结果 建立了霍山县不同产地的霍山石斛药材指纹图谱,标定了14个共有峰,指认了2个峰,13批霍山石斛药材的指纹图谱的相似度均达到0.850以上;聚类分析、主成分分析和PCA载荷图分析模式均表现出不同产地的霍山石斛药材质量具有差异性。结论 运用3种统计分析方法均能够较好地对指纹图谱进行识别,为霍山石斛药材的采收、质量控制等提供科学依据。     

“发汗”与非“发汗”丹参中10种活性成分含量测定及其质量的主成分分析

目的 考察“发汗”丹参与非“发汗”丹参中10种活性成分含量的差异,对“发汗”与非“发汗”两种加工方法进行综合评价。方法 将同一批次丹参鲜品随机分为两组,分别进行“发汗”与非“发汗”处理,对两组丹参中10种活性成分（丹参素、原儿茶酸、原儿茶醛、咖啡酸、异阿魏酸、迷迭香酸、丹酚酸B、隐丹参酮、丹参酮Ⅰ、丹参酮ⅡA）进行含量测定并采用主成分分析法对两组丹参质量进行分析。结果 “发汗”后丹参酚酸类成分和丹参酮ⅡA含量上升,隐丹参酮和丹参酮Ⅰ的含量略有下降;主成分分析结果表明,“发汗”处理后基于效应成分的综合评分更高。结论 “发汗”丹参质量优于非“发汗”丹参。     

行政摊派之违法性研究——以社会管理创新为视角

行政摊派作为一种违法要求行政相对人提供人力、财力和物力的行为,广泛存在于当今政府的社会管理中,具有明显的单方性、外部性、设定义务性以及无充分依据的特性。行政摊派违法之构成要件,主要表现为摊派主体的特定性、主观故意、客观上实施了摊派行为以及客体上侵犯了法律保护的公共利益和私人利益。其违法性成立的理论基础还在于,行政摊派既不能从行政权的公益性和优先性中推出,也不能从行政执法裁量中推出,更不能从公权对抗私权的逻辑中推出。行政摊派具有明显的社会危害性,是一种完全背离民主法治精神、违背依法行政原则的行为,只有对其违法性有充分认识,才能从观念上和行动上制止、杜绝该类行为的滋生蔓延。