姬松茸液体发酵条件的研究

该文对姬松茸液体发酵条件进行了研究。考察了发酵时间对姬松茸液体发酵的影响,确定最佳发酵周期为9天.对发酵培养基中葡萄糖、豆粕及麸皮这三个组分选择了三水平进行正交试验、方差分析。结果表明发酵培养基中葡萄糖组分对姬松茸生物量的影响极显著。最优培养基组合为葡萄糖3%,麸皮1.5%,豆粕1.5%。按最优培养基组合进行发酵试验,姬松茸生物量可达到最高值8.576 g/L。     

犯罪记忆检测的涵义

犯罪记忆检测包括犯罪心理生理反应的诱导、测量、分析、识别四个成分,是一个完整的体系。犯罪记忆检测是一类犯罪心理测试,不是犯罪心理测试的全部;犯罪记忆检测可以用于刑事测谎,却不仅仅局限于刑事测谎;犯罪心理生理测谎仅仅是刑事测谎手段的一种,不能完全代表刑事测谎。     

上海地区D1S80位点基因频率分布及其在亲子鉴定中的应用

目的：将D1S80位点的DNA多态性分析应用于亲子鉴定。方法;PCR、聚丙烯酰胺凝胶电泳及溴已锭染色。结果：获得D1S80位点的DNA多态性分布数据。结论：D1S80位点的PCR检测方法可成功地用于亲权纠纷案的鉴定。     

Eyeball Position in Facial Approximation: Accuracy of Methods for Predicting Globe Positioning in Lateral View

This study measured the accuracy of traditional and validated newly proposed methods for globe positioning in lateral view. Eighty lateral head cephalograms of adult subjects from Central Europe were taken, and the actual and predicted dimensions were compared. The anteroposterior eyeball position was estimated as the most accurate method based on the proportion of the orbital height (SEE = 1.9 mm) and was followed by the “tangent to the iris method” showing SEE = 2.4 mm. The traditional “tangent to the cornea method” underestimated the eyeball projection by SEE = 5.8 mm. Concerning the superoinferior eyeball position, the results showed a deviation from a central to a more superior position by 0.3 mm, on average, and the traditional method of central positioning of the globe could not be rejected as inaccurate (SEE = 0.3 mm). Based on regression analyzes or proportionality of the orbital height, the SEE = 2.1 mm.     

构建我国青少年犯罪防控模式的思考

青少年犯罪是世界上每个国家都不愿意面对而又无法回避的难题。目前 ,青少年犯罪日益突出 ,已成为倍受关注的社会焦点问题。因此 ,对青少年犯罪的防控 ,是整个犯罪控制体系中不可或缺的组成部分。对于青少年犯罪的防控 ,要从两个层面来实现 :一是预防青少年犯罪的发生 ;二是控制、改造青少年犯罪。具体措施应从完善立法、减少司法干预、优化社会环境等五个方面展开。     

“伽利略传统”与经济学实证方法

经典力学中诞生的“伽利略传统”对经济学方法有很大的影响。实证主义把整个人类文化看成是以实证为基础的知识体系,把科学方法的某一方面夸大为科学理论的唯一出发点,走向了片面性。在现代经济学中,一方面模型方法发挥着越来越大的作用,体现了经济学方法的进步;另一方面,我们应该看到,经济学与物理学有本质差异,它没有典型的物理意义上的实验,同时它又包含物理学所没有的人与人的关系。因此,经济学既要合理地继承“伽利略传统”,又要注重社会历史、文化和民族心理等因素。     

基于经络平衡的电导法经络测量分析方法对慢性肾病的诊断价值研究

目的 基于经络平衡理论,探究电导法经络测量值的分析方法,考察其对慢性肾病的诊断价值。方法 纳入健康人群82例和慢性肾病人群222例,采用电导法测量手足井穴和原穴的电阻值,分别计算原穴阴阳比值、井穴阴阳比值、原穴手足比值、井穴手足比值、原穴左右比值、井穴左右比值,采用接收者工作特征（receiver operating characteristic, ROC）曲线考察两组差异具有统计学意义的比值对慢性肾病的诊断价值。结果 两组人群在井穴阴阳比值、原穴手足比值方面比较,差异具有统计学意义（P<0.05）。ROC曲线显示井穴阴阳比值的曲线下面积（area under curve, AUC）为0.618,95% CI为［0.537,0.699］（P<0.05）,原穴手足比值的AUC为0.727,95% CI为［0.655,0.800］（P<0.01）。井穴阴阳比值的最优切点是1.16,灵敏度为0.64,特异度为0.52,原穴手足比值最优切点是1.04,灵敏度为0.68,特异度为0.72。结论 慢性肾病患者的经络平衡处于阴盛阳衰、上盛下衰状态,基于经络平衡的电导法经络测量分析方法具有较好的临床诊断效能。     

茯苓皮总三萜大孔树脂纯化工艺及体外抗炎活性研究

目的 为提高茯苓皮的综合利用价值,建立一种简便的茯苓皮总三萜纯化方法,并通过体外实验验证其抗炎作用。方法 采用HPD-100型大孔树脂吸附法纯化茯苓皮总三萜。基于单因素实验,以总三萜含量为指标,经正交试验优化茯苓皮总三萜纯化工艺。建立脂多糖诱导的RAW 264.7细胞炎症模型,考察茯苓皮总三萜对细胞活力的影响,检测给药后RAW 264.7细胞内一氧化氮（nitric oxide,NO）释放量和肿瘤坏死因子-α（tumor necrosis factor-α,TNF-α）、白细胞介素-1β（interleukin-1β,IL-1β）、白细胞介素-6（interleukin-6,IL-6）水平。结果 纯化后样品总三萜含量增加至70.36%,明显高于粗提总三萜含量（29.76%）,纯化工艺为上柱HPD-100型树脂20 g,上样浓度15 mg/mL,35%乙醇洗脱杂质容积为5倍床体积(bed volume,BV),95%乙醇洗脱三萜容积为4 BV,经实验验证该纯化工艺重复性良好。体外实验结果表明：茯苓皮总三萜在50~250 μg/mL范围内对细胞活力无明显影响;与模型组比较,给药后RAW 264.7细胞内NO释放量和TNF-α、IL-1β、IL-6水平明显降低（P＜0.05）。结论 HPD-100型大孔树脂吸附法纯化工艺能明显提高样品总三萜含量,茯苓皮总三萜具有减轻炎症的作用。     

公安政法院校心理测试技术教学的思考

文章对当前阻碍公安政法院校心理测试技术教学发展的主要问题进行了总结,详细分析了产生问题的各种原因,并从改善心理测试技术人才的培养目标、教学内容、教学方法、教学条件等角度,探讨了从根本上促进心理测试技术教学发展的思路和方法,以顺应新时期培养新型侦查专门人才和"科技强警"的要求。     

idPAD: Paper Analytical Device for Presumptive Identification of Illicit Drugs

As drug overdose deaths across the United States continue to rise, there is increasing interest in field testing of illicit substances. This work discusses a paper-based analytical device (idPAD) that can run a library of 12 colorimetric tests at the same time, each detecting different chemical functional groups and materials found in illicit drugs, distractor substances, and cutting agents. The idPAD requires no electricity, costs less than $2 USD, and requires minimal training to operate. The results of the 12 tests form a color barcode which is “read” by comparison to standard images. The accuracy of the idPAD was assessed using samples of heroin, cocaine HCl, crack, and methamphetamine at concentrations of 25%–100% in a lactose matrix, as well as pure lactose. Based on 840 “reads” by three different users, the idPAD showed 95% sensitivity and 100% specificity for detecting these drugs; the most common error was mistaking cocaine HCl for crack or crack for cocaine HCl. In a second step, samples of heroin, cocaine, and methamphetamine (n = 30) and distractor substances (pharmaceuticals, cutting agents, and other illicit drugs, n = 64) were tested by two readers, yielding a sensitivity of 100% and specificity of 97%. Targeted substances were detected reliably at 55–180 μg/lane, and the idPAD was found to be stable for at least 3 months when stored at room temperature. The library approach used in the idPAD may provide the accuracy and robustness necessary for a presumptive field drug test.