公共空间运用大规模监控的法理逻辑及限度——基于个人信息有序共享之视角

为应对现代化进程中的社会风险,安抚公众对风险的恐慌情绪,公共空间大规模监控随之诞生,并迅速在现实社会和网络空间中全面运用。公共治理不能取安全保障而舍隐私保护,公共空间大规模监控的运用并非以牺牲隐私权为代价,而是在保障安全法益的同时兼顾隐私法益的保护。在此"既保障安全,又保护隐私"的法理念下,公共空间大规模监控的运用体现了风险治理从个人本位走向社会本位的转变趋势,并促进了个人信息保护从自主支配到有序共享的逻辑转换。为寻求安全保障与隐私保护之间的平衡路径,在公共空间合理运用大规模监控措施,就必须加强信息收集、存储、使用的阶段性控制,建立个人信息合理使用制度,实现个人信息的有序共享。     

Delayed elimination in humans after ingestion of colchicine: Two fatal cases of colchicine poisoning

Colchicine has been widely used in the treatment of acute gout over the years, but it has a narrow therapeutic index, and overdose can be life threatening. A method using ultra-high-performance liquid chromatography–tandem mass spectrometry system was applied in two fatal cases of colchicine poisoning in this study to the determination of colchicine in blood. In case 1, a 19-year-old man suffered from depression and ingested 160 colchicine tablets (each 0.5 mg). The concentration of colchicine in his blood samples showed a fluctuating trend and kept above the therapeutic steady-state concentration for 5 days. In case 2, a 70-year-old female patient with a history of gout and chronic colchicine intake ingested five times the usual dose of colchicine (5 mg) and died after 12 days of medical care, with 5 ng/mL of colchicine in her blood sample. Our findings suggest that the delayed elimination and accumulation in humans after colchicine overdose could keep the concentration of colchicine maintaining above the therapeutic steady-state concentration for many days before dying, probably along with a fluctuating trend.     

表面增强拉曼光谱快速检测食品基质中毒物

目的建立常见食品基质中氰化物等五种毒物的拉曼光谱快速分析方法。方法采用水、乙腈及乙酸乙酯作为提取剂对饮用水、苹果以及烤鸭三种常见食品基质中氰化物、百草枯、毒死蜱、甲拌磷以及敌鼠钠五种毒物进行提取,并使用表面增强拉曼光谱法检测。结果实验表明,每种毒物均有其独特的拉曼信号,这些特征信号可作为其定性的判别依据,氰化物在饮用水、苹果以及烤鸭这三种基质中的检出限均不大于1μg/mL(g);百草枯的检出限在0.05~0.1μg/mL(g)之间;毒死蜱、甲拌磷的检出限在0.05~1μg/mL(g)之间;敌鼠钠检出限在0.1~1μg/mL(g)之间,均满足现场检测需求。结论该方法操作简单且分析速度快,为毒物的快速筛查提供了较好的解决方案。     

Characterisation and discrimination of so-called metallised fibres found in clothing and decorative materials originating from the consumer market

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The Power of Mass Mobilisation: Argentina's Struggle for the Legalisation of Abortion

The mass pro-abortion mobilisation which took place in 2018 has been arguably the most successful attempt in Argentina's history at altering the existing legal framework regulating access to voluntary termination of pregnancy. Never before has any legislative project legalising abortion reached the upper chamber of the Congress. Could this result be attributed to the support it received from a mass social movement? What are the limitations of mass mobilisations when a structural change to a long-lasting narrative is required? In order to address these questions, the issue of abortion will be examined through the perspective of power-making and counterpower-making strategies.     

Application of forward‐looking infrared (FLIR) imaging from an unmanned aerial platform in the search for decomposing remains

Traditional methods of cadaver detection in outdoor environments include manual ground search, cadaver dogs, and manned aerial reconnaissance during daylight. These methods have limitations; however, a potential low‐cost alternative may be to employ thermal imaging equipment mounted on an unmanned aerial vehicle (UAV) to detect heat emitted by insect and bacterial activity on the decomposing remains. No studies have addressed the influence of wrappings on detection of maggot mass thermal signatures nor assessed thermal detection of smaller body fragments. We addressed these knowledge gaps by utilizing a two‐phase experimental approach to explore thermal detection of carcasses using UAV‐mounted infrared imaging. In Phase 1, pig body fragments were deposited on the surface or shallow buried. In Phase 2, whole pig carcasses were deposited in four conditions: on the surface uncovered, wrapped in plastic or carpet, or buried. Our results demonstrated that observable heat emissions from remains corresponded to peak insect activity during active decay and could be readily detected in uncovered whole carcasses and fragments. Although plastic and carpet wrappings partly impeded detection of insect heat signatures, these materials were clearly detectable themselves because of their contrast to the background ground surface. Thermal signatures of buried partial remains and disturbed gravesoil were also observed; however, the buried whole carcass transitioned to adipocere prior to the decay stage and without any insect colonization or heat signature. These data can inform operational implementation of this technique to complement existing search strategies to offer a robust, low‐cost alternative for use where scene characteristics allow.     

Field-portable detection of fentanyl and its analogs: A review

The need to detect fentanyl and its analogs in the field is an important capability to help prevent unintentional exposure or overdose on these substances, which may result in death. Many portable methods historically used in the field by first responders and other field users to detect and identify other chemical substances, such as hazardous materials, have been applied to the detection and identification of these synthetic opioids. This paper describes field portable spectroscopic methods used for the detection and identification of fentanyl and its analogs. The methods described are automated colorimetric tests including lateral flow assays; vibrational spectroscopy (mid-infrared and Raman); gas chromatography–mass spectrometry; ion mobility spectrometry, and high-pressure mass spectrometry. In each case the background and key details of these technologies are outlined, followed by a discussion of the application of the technology in the field. Attention is paid to the analysis of complex mixtures and limits of detection, including the required spectral databases and algorithms used to interrogate these types of samples. There is also an emphasis on providing actionable information to the (likely) non-scientist operators of these instruments in the field.     

Differentiation of Cosmetic Foundation Creams Using Attenuated Total Reflection Fourier-Transform Infrared Spectroscopy: A Rapid and NonDestructive Approach in Trace Evidence Analysis

Cosmetic foundation creams are encountered as evidentiary material in criminal investigations, particularly in cases related to sexual and physical assault against women. Analyzing foundation cream exhibit is a challenging task as the exhibit is recovered in trace quantity with similar hue. In the present study, ATR FTIR spectroscopy which is a rapid, nondestructive, sensitive, reliable, and safe alternative to other analytical techniques has been used to differentiate 31 cosmetic foundation creams belonging to 23 different brands supported by chemometric methods such as principal component analysis (PCA) and linear discriminant analysis (LDA). The discriminating power of visual analysis is found to be 98.0%, while PCA and LDA further increased the discriminating power to 99.3% and 100%, respectively. The blind test is conducted with three unknown samples (pretended to be unknown to the analyst), which were correctly linked with their respective source. Further, the effect of substrate such as tissue paper (dry and wet) and white cotton cloth during sample analysis are also examined to simulate the actual forensic casework conditions. The stains on substrates could be identified and linked to its parent product as well. The reported method provides significant results for the differentiation of cosmetic foundation creams.     

Rapid enantiomeric analysis of zopiclone in serum by supercritical fluid chromatography–tandem mass spectrometry

Zopiclone (ZOP) is a hypnotic drug prescribed to treat insomnia. Due to the chiral nature of ZOP, the psychologically active S-form and inactive R-form need to be determined enantiomerically in a forensic drug analysis. In the present study, a supercritical fluid chromatography (SFC) method was designed with a faster analysis ability than that of previously reported techniques. The SFC–tandem mass spectrometry (SFC–MS/MS) method was optimized using a column with a chiral polysaccharide stationary phase (Trefoil CEL2). ZOP was extracted from pooled human serum using solid-phase extraction (Oasis HLB) and analyzed. The developed SFC–MS/MS method achieved the baseline separation of S-ZOP and R-ZOP within 2 min. The fit-for-purpose method validation indicated that the optimized solid-phase extraction achieved near complete recovery and approximately 70% of the matrix effect. Both the retention time and peak area showed sufficient precision. The lower and upper limits of quantification (LOQ) were 5.7 × 10⁻² ng/mL and 25 ng/mL for R-ZOP, and 5.2 × 10⁻² ng/mL and 25 ng/mL for S-ZOP. The calibration line was linear in the range from lower LOQ to upper LOQ. The stability test indicated that ZOP in serum stored in a refrigerator (4°C) degraded and about 55% remained in 31 days. The quick analysis of the SFC–MS/MS method makes it a valid option for the enantiomeric analysis of ZOP.     

新媒体视域下的大学生素质教育现状与创新

在推进大学生素质教育过程中,新媒体起到了至关重要的作用。基于新媒体视角,从大学生和高校教育两个角度对当代大学生素质教育的现状出发,构建大学生素质教育创新能力培养体系、通识教育体系、智力和非智力协调发展教育体系三大体系协调发展的创新思路,可以不断纠正学生的不良心理和行为,帮助大学生树立起积极向上的精神追求,全面提升学生的综合素质,促进大学生全面发展。