Network structure and collaborative innovation processes—A comparative analysis of two elderly service networks in Shanghai

How does the structure of government‐funded service networks affect the process of service innovation? We have conducted a comparative analysis of the structure and processes of collaborative innovation of 2 government‐funded community‐based elderly service networks in Shanghai. We have found that in consistent with the literature, a network that has a network administrative organization structure is better able to manage the process of service innovation in a way that balances the need to achieve government policy goals on the one hand and the imperative to facilitate bottom‐up citizen participation on the other. Surprisingly, contrary to what prior studies have suggested, we have found that a network in which a lead organization plays a dominant role, despite its more centralized process of service innovation, is often able to deliver a variety of high‐quality and low‐cost services addressing citizens' needs. With the leadership provided by the network lead organization and its close affiliation with the street‐office government, the network has been able to solicit government support. Such a hierarchical yet responsive state‐society relation has emerged as a result of the coalescence of a corporatist state legacy and an increasing pressure for local governments to seek citizens' support in service delivery.     

Single Nucleotide Polymorphism Assay for Genetic Identification of Lophophora williamsii*

Lophophora is a member of the Cactaceae family, which contains two species: Lophophora williamsii and L. diffusa. Lophophora williamsii is an illegal plant containing mescaline, a hallucinogenic alkaloid. In this study, a novel method based on a single nucleotide polymorphism (SNP) assay was developed for identifying L. williamsii; this assay reliably detects SNPs within chloroplast DNA (rbcL, matK, and trnL-trnF IGS) and was validated for identifying Lophophora and L. williamsii simultaneously. The chloroplast DNA sequences from four L. williamsii and three L. diffusa plants were obtained and compared using DNA sequence data from approximately 300 other Cactaceae species available in GenBank. From this sequence data, a total of seven SNPs were determined to be suitable for identifying L. williamsii. A multiplex assay was constructed using the ABI PRISM^® SNaPshot™ Multiplex Kit (Applied Biosystems, Forster City, CA) to analyze species-specific SNPs. Using this multiplex assay, we clearly distinguished the Lophophora among 19 species in the Cactaceae family. Additionally, L. williamsii was distinguished from L. diffusa. These results suggest that the newly developed assay may help resolve crimes related to illegal distribution and use. This multiplex assay will be useful for the genetic identification of L. williamsii and can complement conventional methods of detecting mescaline.     

Simplified Direct PCR Method for Reference Buccal Samples Using a Non-FTA Card by Omitting the Pretreatment Step

When using non-FTA cards in commercial multiplex STR kits for direct PCR, pretreatment steps with specific buffers are recommended. Here, we designed a rapid direct PCR method utilizing a non-FTA card, Oral Cell Sampling Kit, by omitting the pretreatment step involving Prep-n-Go™ Buffer, and it showed compatibility with the GlobalFiler™ Express PCR Amplification Kit, GlobalFiler™ PCR Amplification Kit, and PowerPlex^® Fusion system. To optimize the PCR conditions, we tested the method with different final PCR volumes and cycles. Finally, we conducted a performance test using 50 Korean buccal samples and confirmed the high performance of the method, detecting more than 90% of the samples with full profiles when using GlobalFiler™ PCR Amplification Kit and PowerPlex^® Fusion system at 29 cycles in a 10 μL final PCR volume. Thus, we report a simple direct PCR set-up to analyze reference samples collected using a non-FTA card manufactured in Korea.     

Fixed Investment and Economic Growth in China

This paper attempts to investigate empirically the investment-growth relationship in China. Using the exogeneity framework pioneered by Engle et al. (1983) and Engle and Hendry (1993), we find that fixed investment is a key determinant of China's economic growth, which, surprisingly, has not been rigorously examined in the literature. The super exogeneity test results suggest that there exists a robust (or structurally invariant) relationship between capital formation and income growth, thereby giving credence to policy evaluation.     

Perceived crime seriousness: Consensus and disparity

In this article, the statistical technique for setting up the consensus of perceived crime seriousness in previous studies is critically reviewed. The conventional method, when applied to a data set of crime seriousness, is found to have exaggerated the consensus because, by using a more appropriate model, which assumes perfect agreement in crime severity between subgroups, the consensus is reduced unanimously. By breaking down the population by gender, age, and educational level, sociodemographic differentials in crime seriousness are set up. The disparity is then further examined in details by paired comparisons between a target crime with fourteen other crimes. The three factors are all found to be important in affecting perceived crime seriousness. This conclusion is different from that of previous studies. The scaling method is found to be responsible for the difference. As the Thurstone method used in this study is more responsive and can produce more discriminating results, it is recommended for future research in crime severity. Finally, the implications of the findings on some important issues, like the appropriateness of legal penalty and the construction of a crime index, are discussed.