吉林省农村消费需求现状及促进农村内需进一步扩大的对策

居民消费状况是反映经济发展水平的重要指标,健康科学的消费是发展农村经济的重要途径。吉林省是农业大省,要保持吉林省经济持续快速健康的发展,离不开对农村市场的开拓。可以说,扩大内需潜力最大的是农村,但扩大农村内需并不等于单纯地刺激农民多消费,而是要使政策与投资向农村倾斜,急农民之所急,想农民之所想,使农民有保障感,这样,才能促进农村内需的进一步扩大。     

The impurity characteristics of methamphetamine synthesized by Emde and Nagai method

Impurity profiling and classification of seized methamphetamine may play an important role in the interpretation of analytical results, the determination of the synthetic method employed, and the criminal investigations of drug traffic routes. Our study is focused on classifying seized methamphetamine samples according to the groups sorted by the types and quantities of impurities present in illicit methamphetamine samples. The samples (100 mg) were dissolved in 2 mL of potassium phosphate buffer (pH 7.0), extracted with 200 μL of ethyl acetate under basic condition, and then analyzed by gas chromatography-mass spectrometry (GC–MS) with a DB-1 capillary column (30 m × 0.25 mm i.d., 0.25 μm). Five impurities are used as criteria for the classification of seized methamphetamine samples by Emde and Nagai method. A total of fifty-two samples of seized methamphetamine were analyzed by GC–MS and classified by five organic impurities, and then sorted into four groups, which are Nagai type, Emde Type, Undetermined I type, and Undetermined II type.     

生物试样中巴比妥类药物固相提取柱上衍生化GC/MS分析

建立生物试样中常见巴比妥类药物的固相提取和柱上衍生化GC／MS分析法。将预制的血或肝分别在pH6．0和pH2.2的条件下过预活化的GDX－403吸附小柱，再用缓冲浪和蒸馏水各4ml顺序洗柱。最后用4ml丙酮／氯仿（1：1）溶剂洗脱样品，离心弃除水相，80℃挥至近干，用50μl乙醇定溶、取净化的样品2～4μl挥至近干，加20μl0．2molTMAH衍生化试剂，直接进样0.5μl，柱上衍生化GC／MS（GC）分析。在试验条件下，当血和肝分别添加2．0μg和5．0μg混合药物，回收率≥80％，相对标准差（RSD）优于±10％，检测限优于5ng（信／噪比≥2）。该法能有效地排除类脂物和组胺的干扰，可用于治疗量级药物分析和婴幼儿中毒案检验。     

Differing patterns of marriage between a city and villages in 18th century Korea: The case of Taegu Area

While the urban area was increasingly filled with middle- and low-status residents, the rural area was dominated by high-status settlers whose number increased because of migration from the city and natural growth. Remarkable differences existed between urban and rural marriage features such as marriage age and rate of remarriage. The more sincere adoption of the high-status marriage culture in the rural area may be attributed to its occupational homogeneity. In the rural agrarian settings, landlords, self-cultivators and tenants shared a similar living pattern and value system based on the agricultural cycle. The urban area, however, exhibited a variety of work patterns of local functionaries, artisans and merchants. Many middle- and low-status people might well have found the high-status culture of the rural area incompatible with their own.     

Construct validity,reliability and predictive validity of the dynamic risk assessment and management system (DRAMS) in offenders with intellectual disability

Background. There have been a number of developments in the assessment of dynamic risk in the criminological literature. The dynamic risk assessment and management system (DRAMS) has been developed to facilitate the measurement of dynamic factors of risk for offenders with intellectual disability. Method. The study was designed to assess the construct validity, reliability and predictive utility of the DRAMS in 23 male forensic patients in a high secure setting. Predictions were made against independently collected incident data. Concurrent validity was assessed against the Ward Anger Rating Scale (WARS). Results. A reformulation of the individual section variables according to convergent and discriminant correlational analysis revealed Cronbach's alpha levels of >.8 for all sections apart from mood (alpha .750) and items retained to facilitate clinical information (alpha ?.017). Two hundred pairs of WARS and DRAMS assessments revealed orderly sectional correlations. The sections of mood, antisocial behaviour, and intolerance/agreeableness predicted incidents with a medium effect size as did total DRAMS score. There were highly significant differences between assessments taken 1 or 2 days prior to an incident and control assessments conducted at least 7 days from an incident. Conclusions. The reformulated DRAMS has good construct and concurrent validity. It appears to be a reliable assessment tool and informs on risk levels relating to stable and acute proximal factors. It appears as an important addition to the utility of risk assessments for this population.     

A welfare simulation of mixed-member electoral systems

This paper considers welfare properties of mixed-member electoral systems. In a mixed system, voters may elect high-quality district representatives without excessive campaign fundraising. Simulation results reveal that the optimally mixed electoral system can be welfare-enhancing, but a poorly targeted electoral reform can do worse than a PR system or plurality rule.