弱势群体社会资本缺失的因素分析

社会资本缺失既是弱势群体的重要特征,又是其弱势地位形成的重要因素。弱势群体的社会资本缺失主要表现在资本因素、结构因素、文化因素、制度因素及组织因素等几方面。     

委托理财协议中的保底条款效力之追问

保底条款是委托理财协议中最重要的条款,它不仅决定了这种投资方式的存在与否,同时亦是委托理财失败诉争时当事双方相持不下的根本原因。对于该条款的效力认定,目前的法律与司法实践并没有提供能真正能起到指导与评价作用的答案。因此,从合同的私法性、社会法性及保底条款与其它条款的勾连角度来追问保底条款的效力问题是合理与适法判决的关键所在。     

Fingerprint analysis for the determination of hand origin (right/left) using the axis slant in whorl patterns

Fingerprints are frequently encountered during both civil and criminal investigations. Fingerprints possess numerous characteristics that assist with personal identification. Determining the hand of origin (right or left) for an individual fingerprint would help reduce investigation time and potentially eliminate certain suspects. In this study, we collected a total of 2 900 single digit fingerprints from 290 individuals, and the whorl axis slant was examined in the 743 whorl pattern fingerprints (385 from the right hand and 358 from the left hand). A slant towards the right side was present in 81.82% of samples from the right hand, while a slant towards the left side was observed in 80.73% of samples from the left hand. After applying a chi-square test to the dataset, the results were found to be statistically significant for the determination of hand origin. Our results suggest that the whorl axis slant in a fingerprint is indicative of hand origin (right or left).

Key points

• Single digit fingerprints with whorl pattern were analyzed.
• Whorl “axis slant” was used to determine the hand origin.
• Right axis slant would indicate the right hand of the print.
• Left axis slant would indicate the left hand of the print.

     

Analysis of sensitivity and specificity: precise recognition of neutrophils during regeneration of contused skeletal muscle in rats

In this report, we applied the TissueFAXS 200 digital pathological analysis system to rapidly and accurately identify neutrophils during regeneration of contused skeletal muscle, and to provide information for follow-up studies on neutrophils to estimate wound age. Rat injury model was established, and skeletal muscle samples were obtained from the control group and contusion groups at 1, 1.5, 2, 3, 4, and 6 h, as well as at 1, 3, 5, and 15 d post-injury (n = 5 per group). The expression of nuclei and neutrophils was detected by hematoxylin and eosin (HE) staining and immunohistochemical (IHC) staining. A total of 20 injury site areas of 0.25 mm² (0.5 mm × 0.5 mm) were then randomly selected at all time points. A TissueFAXS 200 digital pathological analysis system was used to identify the positive and negative numbers. Knowledge of five professional medical workers were considered the gold standard to measure the false positive rate (FPR), false negative rate (FNR), sensitivity, specificity, and area under the curve (AUC) of receiver operating characteristic (ROC) curves. As a result, with a staining area of neutrophils from 8 µm² to 15 µm², the FPR was 4.28%–12.14%, the FNR was 12.42%–64.08%, the sensitivity was 35.92%–87.58%, the specificity was 87.86%–95.72%, the Youden index was 0.316–0.754, the accuracy was 82.80%–88.30%, and the AUC was 0.771–0.826. The AUC was largest when the cut-off value of the staining area was 12 µm². Our results show that this software-based method is more accurate than the human eye in evaluating neutrophil infiltration. Based on the sensitivity and specificity, neutrophils can be accurately identified during regeneration of contused skeletal muscle. The TissueFAXS 200 digital pathological analysis system can also be used to optimize conditions for different cell types under various injury conditions to determine the optimal cut-off value of the staining area and provide optimal conditions for further study. Furthermore, it will provide evidence for forensic pathology cases.     

无骨折脱位型颈脊髓损伤法医学鉴定25例分析

目的 探讨无骨折脱位型颈脊髓损伤案例中外伤与损害后果因果关系法医学鉴定的要点.方法 收集25例无骨折脱位型颈脊髓损伤的法医学鉴定案例资料,总结被鉴定人的年龄、致伤方式、影像学检查结果、自身颈椎退变情况、临床表现、主要诊疗情况、预后情况等,按照损伤与损害后果相关程度分为直接原因、主要原因、同等原因、次要原因、无原因进行伤...     

GC/ECD检验生物检材中的氟乙酸钠

建立对生物检材中氟乙酸钠的GC/ECD检验方法。用PFBBr作衍生化试剂,对氟乙酸钠或氟乙酰胺中毒后脏器中的氯乙酸（氯乙酸钠）进行衍生化,GC/ECD和GC／MS的分析。在1ml血中添加lμg1080,其回收率为76．2％,RSD为3．07（n＝7）;在1g肝中添加2μg的1080其回收率为84．4％,RSD为1．87（n=5）。研究的方法经动物试验和大量中毒案件的验证,效果较好。该方法已在中毒案件的检验中广泛应用。     

Validation studies of the ParaDNA® Intelligence System with artificial evidence items

Short tandem repeat (STR) profiling is one of the mostly used systems for forensic applications. In certain circumstances, STR profiling is time-consuming and costly, which potentially leads to delays in criminal investigations. LGC (Laboratory of the Government Chemist, UK) Forensics has developed a robust STR profiling platform called the ParaDNA^® Intelligence Test System which can provide early tactical intelligence and aid investigators in making informed decisions on sample prioritization for detection. Here, we validated the ParaDNA intelligence test for its application in forensic cases using a range of mock evidence items following guidelines set by the Scientific Working Group on DNA Analysis Methods (SWGDAM). Specifically, we tested the sensitivity and accuracy of the ParaDNA intelligence test, as well as the success rates for detecting mock samples and for use in case scenarios. Our findings demonstrate that the ParaDNA intelligence test generates useful DNA profiles, especially for samples such as blood, saliva, and semen that contain ample DNA, indicating the benefits of including ParaDNA as a prior step in forensic STR profiling pipelines.     

苦丁茶提取物质量分析

目的 对苦丁茶药材水提物进行质量分析。方法 以槲皮素、山柰素作为对照品,采用薄层色谱法对苦丁茶药材中黄酮类化合物进行定性鉴别;采用反相高效液相色谱法测定苦丁茶药材中槲皮素和山柰素含量。结果 薄层色谱鉴别结果表明,供试品色谱中在与对照品色谱相应的位置上,显现相同颜色的斑点。槲皮素、山柰素进样量分别在0.1～3.2 μg、0.01～0.32 μg范围内,与峰面积线性关系良好（槲皮素r1＝0.999 9;山柰素r2＝0.999 8）,槲皮素及山柰素的平均加样回收率分别为102.34%和101.24%,RSD分别为3.26%和3.15%(n＝9)。结论 薄层色谱法和反相高效液相色谱法简便、准确,重复性好,可作为苦丁茶药材水提物的质量分析方法。     

陪审团在死刑案件中适用的价值分析

死刑案件作为最严重的案件,作为关涉公民生命权的案件,它的审判是我们在构建正当法律程序时需要关注的重点。文章以价值分析为主视角,从哲学思辨和实证分析入手,提出在我国的死刑案件中引入陪审团审判,以构建强大的死刑案件普通审程序之设想,试图通过在死刑案件中引入陪审团审判,扩大刑事司法中的民众参与和司法民主,促进司法公正和社会正义之实现。