抗衰延寿液延缓黑腹果蝇衰老的实验研究

目的:探讨补肾活血法延缓衰老的作用.方法:抗衰延寿液分为大、中、小剂量组,含药量分别为40,20,10 ml/kg,加入基础培养基中,并以基础培养基为对照组,观察其对果蝇寿命、生殖力、飞翔能力、耐寒能力的影响.结果:抗衰延寿液能够延长果蝇寿命,提高果蝇生殖能力、飞翔能力和耐寒能力.结论:抗衰延寿液能够延缓果蝇的衰老.     

妇康宝口服液的质量标准研究

目的：建立妇康宝口服液的质量标准。方法：用薄层色谱法对白芍、当归和川芎进行了定性鉴别，用反相高效液相色谱(RP-HPLC)法测定了口服液中芍药苷的含量。结果：定性鉴别分离度好，专属性强；芍药苷在0．199～1．988／μg范围内呈良好的线性关系，r=0、9999，平均加‘样回收率为98．73％，．RSD为0．86％。结论：所建立的方法简便准确、灵敏度高，可用于妇康宝口服液的质量控制。     

从口供的重要性看刑讯逼供的原因

产生刑讯逼供的根本原因是讯问的合法性、口供的重要性,以及侦查中追求口供的态度;其直接原因是“如实供述”的义务和侦查人员的自由裁量权;现实原因是缺乏“非法证据排除规则”和对侦查讯问的有效监督。     

反相HPLC法鉴别蓝圆珠笔油墨的种类

采用反相高效液相色谱法对全国各地生产的不同厂家及不同生产批号的圆珠笔油墨种类进行鉴别研究之后可以发现,由于不同种类的圆珠笔油墨所呈现的色谱峰的保留时间及相对峰高比各不相同,因此,可以对圆珠笔油墨种类进行鉴别。     

Application of LC−QTOF/MS for the validation and determination of organic explosive residues on Ionscan® swabs

The identification and confirmation of trace explosive residues along with potential precursors and degradation products require a comprehensive laboratory analysis procedure. This study presents the determination of organic explosives consisting of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), 2,4,6-trinitrotoluene (TNT), 2,4,6,N-tetranitro-N-methylaniline (Tetryl), 1,3,5-trinitrobenzene (1,3,5-TNB) and pentaerythritol tetranitrate (PETN) by a high-resolution liquid chromatography quadrupole time-of-flight mass spectrometry (LC−QTOF/MS). The qualitative information including retention time, collision energy, precursor ions, and characteristic fragmentation pattern of each explosive were collected using an atmospheric pressure chemical ionization (APCI) in negative ion mode. The separation efficiency among five compounds was greatly achieved in this study. Four real explosive samples consisting of TNT, RDX, PETN and Tetryl and 12 Ionscan® quality control swabs from the Royal Thai Army were also tested to validate and verify the viability of the GC–MS method used to validate results from an Ionscan® system. The results showed that LC−QTOF/MS is a powerful technique for the identification and confirmation of thermally unstable organic explosives on Ionscan® swabs compared to a conventional GC−MS technique.     

复方槐花口服液治疗轻度混合痔临床观察

目的 观察复方槐花口服液治疗轻度混合痔的临床疗效。方法 将符合纳入标准的轻度混合痔患者150例按随机数字表法分为复方槐花口服液治疗组、痔疮片及地奥司明片对照组,每组50例,观察3组患者出血、疼痛、肛门肿物脱出评分及临床疗效。结果 与治疗前比较,3组患者治疗后出血、疼痛评分均显著降低,差异有统计学意义（P＜0.05）;复方槐花口服液组治疗前后出血、疼痛评分差值显著大于痔疮片组和地奥司明片组（P＜0.05）;3组患者治疗前后肛门肿物脱出评分比较,差异无统计学意义（P＞0.05）。3组患者临床疗效分布比较,差异具有统计学意义（P＜0.05）。结论 复方槐花口服液对轻度混合痔具有良好的临床疗效。     

不换金正气散加减治疗小儿脾失健运型口臭症疗效观察

目的 观察不换金正气散加减治疗小儿脾失健运型口臭症的临床疗效。方法 将60例脾失健运型口臭症患儿随机分为治疗组与对照组,每组30例,治疗组予不换金正气散加减治疗,对照组予双歧杆菌四联活菌片治疗。结果 治疗组临床疗效明显优于对照组（P＜0.05）。在改善口臭、舌苔厚度、腹痛、嗳气、恶心呕吐、大便异常方面,治疗组优于对照组(P＜0.05)。两组治疗后主症积分、次症积分、症状总积分均较治疗前明显降低（P＜0.05）,治疗组治疗后主症积分、次症积分、症状总积分下降值大于对照组（P＜0.05）。结论 不换金正气散加减治疗小儿口臭症脾失健运证疗效确切。     

反相高效液相色谱法测定茵栀黄口服液中栀子苷的含量

目的：测定茵栀黄口服液中栀子苷的含量。方法：采用反相高效液相色谱法，C18-ODS柱为色谱柱，甲醇-水(20：80)为流动相，流速为1．0ml／min，检测波长：230nm。结果：线性范围为0．6228～1．557μg／ml(r=0．9998)，平均回收率为100．15％，RSD为1．63％(n=5)。结论：本法操作简便，准确可靠。     

“We weren't the sort that wanted intimacy every night”: Birth control and abstinence in England,c.1930–60

This article presents an exploration of qualitative evidence on the relationship between birth control and abstinence from an oral history project, which interviewed middle and working-class English men and women, who had married between the late 1920s and the early 1950s. Among the working classes the assumption that men were responsible for birth control choices and the disadvantages that contraceptive methods of all types posed, combined with the fear of pregnancy, acted as a disincentive to have sex and resulted in forms of partial abstinence. Among the middle classes, women had much more access to birth control information and as a consequence a greater range of methods was used, including more female methods. However, the reluctance of couples to discuss sexual matters, and some continued preference for male methods meant that while condoms were the most regularly used middle-class male method, both withdrawal and abstinence were also in evidence. Moreover, although partners were more likely to discuss birth control at the start of their marriages, they were less likely to agree that contraception was a male responsibility and there was greater potential for conflict over contraceptive methods, not infrequently resulting in abstinence. The evidence suggests that sexual and contraceptive practices in marriages in England at the end of the secular fertility decline do not present a picture which straightforwardly correlates with the assumptions represented by the popular thesis that this period of increased fertility control was closely associated with the rise of companionate marriage.     

Evaluation of the Cozart RapiScan drug test system for opiates and cocaine in oral fluid

The purpose of this study was to evaluate the efficiency of the Cozart^® RapiScan (CRS) drug test system for detecting opiates and cocaine in oral fluid. Oral fluid samples were collected using the Cozart^® RapiScan collection system from 358 donors who were receiving treatment for their addiction and were monitored for drug misuse. A further 103 oral fluid samples were collected from volunteer donors who were not drug users. The samples were analyzed in the laboratory using the two-panel Cozart^® RapiScan cartridge for opiates and cocaine and confirmed using gas chromatography–mass spectrometry (GC–MS). The samples were stored frozen at −20 °C until analysis by GC–MS. The overall accuracy of the CRS for both opiates and cocaine was 100%. Samples spiked at 50% above and below the cut-off consistently gave negative and positive results respectively. A total of 88 samples were positive for various opiates and 111 samples were positive for cocaine and/or its metabolites. The CRS for opiates and cocaine in oral fluid, using a cut-off of 30 ng/mL morphine or benzoylecgonine equivalents in neat oral fluid, had overall efficiencies of 98% and 99%, respectively, versus GC–MS. A series of potential adulterants of oral fluid were evaluated and shown not to alter the outcome of the test result.