445 research outputs found

    Mental health and the response to financial incentives: evidence from a survey incentives experiment

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    Although mental health disorders such as anxiety and depression are common, there is little research on whether individuals in poor mental health react differently from others to financial incentives. This paper exploits an experiment from the UK Understanding Society Innovation Panel to assess how the participation response to randomly-assigned financial incentives differs by mental health status. We find that individuals in good mental health are more likely to respond when offered a higher financial incentive, whereas those in poor mental health are indifferent to the increased incentive. We find no comparable differences for physical health

    The Role of E-Books in the Future of the Supply Chain of the Publishing Industry

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    The intent of this paper is to explore the future role of ebooks in the publishing industry. Emphasis is put on the impact it has on the supply chain of the industry. Issues dealing with the legal ramifications and financial implications, such as sales taxes, will also be addressed. The first section describes characteristics of e-books and the current developments in e-books from the consumer’s point of view. With the handling of the content of publications in digital form, intellectual property rights will become more complex and will require new regulations to deal with the new medium. These and other related legal issues are addressed in the third section. With the likelihood of utilizing the Internet for the distribution of the e-book to consumers, the collection of sales taxes will be difficult for government agencies to handle. The situation will be further complicated due to the globalization of the market place. Which policies are in effect, how will they are enforced, and who are responsible for their collection are emerging issues that will need to be addressed in the global and local arenas. Then it will be followed by the impact it has on the supply chain of the industry. For example, one of the benefits of ebooks is the reduction of logistical costs throughout the supply chain. Also, due to the ease of distribution, there most likely will be consolidation of certain levels within the supply chain. It may trigger a shift of competitive power among the various levels. The likely scenario of the future business environment of the publishing industry is discussed in the concluding section

    Optimization and Functional Effects of Stable Short Hairpin RNA Expression in Primary Human Lymphocytes via Lentiviral Vectors

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    Specific, potent, and sustained short hairpin RNA (shRNA)-mediated gene silencing is crucial for the successful application of RNA interference technology to therapeutic interventions. We examined the effects of shRNA expression in primary human lymphocytes (PBLs) using lentiviral vectors bearing different RNA polymerase III promoters. We found that the U6 promoter is more efficient than the H1 promoter for shRNA expression and for reducing expression of CCR5 in PBLs. However, shRNA expression from the U6 promoter resulted in a gradual decline of the transduced cell populations. With one CCR5 shRNA this decline could be attributed to elevated apoptosis but another CCR5 shRNA that caused cytotoxicity did not show evidence of apoptosis, suggesting sequence-specific mechanisms for cytotoxicity. In contrast to the U6 promoter, PBLs transduced by vectors expressing shRNAs from the H1 promoter could be maintained without major cytotoxic effects. Since a lower level of shRNA expression appears to be advantageous to maintaining the shRNA-transduced population, lentiviral vectors bearing the H1 promoter are more suitable for stable transduction and expression of shRNA in primary human T lymphocytes. Our results suggest that functional shRNA screens should include tests for both potency and adverse metabolic effects upon primary cells

    Australian bat lyssavirus infection in two horses

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    In May 2013, the first cases of Australian bat lyssavirus infections in domestic animals were identified in Australia. Two horses (filly-H1 and gelding-H2) were infected with the Yellow-bellied sheathtail bat (YBST) variant of Australian bat lyssavirus (ABLV). The horses presented with neurological signs, pyrexia and progressing ataxia. Intra-cytoplasmic inclusion bodies (Negri bodies) were detected in some Purkinje neurons in haematoxylin and eosin (H&E) stained sections from the brain of one of the two infected horses (H2) by histological examination. A morphological diagnosis of sub-acute moderate non-suppurative, predominantly angiocentric, meningo-encephalomyelitis of viral aetiology was made. The presumptive diagnosis of ABLV infection was confirmed by the positive testing of the affected brain tissue from (H2) in a range of laboratory tests including fluorescent antibody test (FAT) and real-time PCR targeting the nucleocapsid (N) gene. Retrospective testing of the oral swab from (H1) in the real-time PCR also returned a positive result. The FAT and immunohistochemistry (IHC) revealed an abundance of ABLV antigen throughout the examined brain sections. ABLV was isolated from the brain (H2) and oral swab/saliva (H1) in the neuroblastoma cell line (MNA). Alignment of the genome sequence revealed a 97.7% identity with the YBST ABLV strain
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