60 research outputs found

    Marketing Wine on the Web

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    E-commerce is penetrating agriculture, particularly for selling products directly to consumers. The wine industry is a case in point. The industry has long-term experience in direct marketing. Many wineries welcome patrons at their premises for wine tasting and for selling wine to them. Moreover, where the practice is allowed, shipping wine directly to consumers without the assistance of trade intermediaries is a significant sales channel. E-commerce was adopted early in the wine industries of wired high-income countries and the wine industry provides an opportunity for studying the adoption, use, and impact of e-commerce. Moreover, because e-commerce has not spread evenly through all branches of agriculture, lessons learned from the wine industry may provide useful insights for entrepreneurs and policy makers concerned with sections of agriculture or the food industry where e-commerce adoption lags behind. The specific objectives of the dissertation research project which we report here therefore were: (1) to assess the extent of e-commerce diffusion in the wine industries of Australia, California, Germany; (2) to identify e-commerce practices used by wineries for marketing wine; (3) to explain differences in wineries' e-commerce practices, and (4) to derive insights and implications for sections of agriculture that lag behind in ecommerce adoption.Marketing,

    Analytical and numerical analysis of the generalized Shkarofsky function

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    Largest GWAS of PTSD (N=20 070) yields genetic overlap with schizophrenia and sex differences in heritability

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    The Psychiatric Genomics Consortium-Posttraumatic Stress Disorder group (PGC-PTSD) combined genome-wide case-control molecular genetic data across 11 multiethnic studies to quantify PTSD heritability, to examine potential shared genetic risk with schizophrenia, bipolar disorder, and major depressive disorder and to identify risk loci for PTSD. Examining 20 730 individuals, we report a molecular genetics-based heritability estimate (h 2 SNP) for European-American females of 29% that is similar to h 2 SNP for schizophrenia and is substantially higher than h 2 SNP in European-American males (estimate not distinguishable from zero). We found strong evidence of overlapping genetic risk between PTSD and schizophrenia along with more modest evidence of overlap with bipolar and major depressive disorder. No single-nucleotide polymorphisms (SNPs) exceeded genome-wide significance in the transethnic (overall) meta-analysis and we do not replicate previously reported associations. Still, SNP-level summary statistics made available here afford the best-available molecular genetic index of PTSD - for both European- and African-American individuals - and can be used in polygenic risk prediction and genetic correlation studies of diverse phenotypes. Publication of summary statistics for 1/410 000 African Americans contributes to the broader goal of increased ancestral diversity in genomic data resources. In sum, the results demonstrate genetic influences on the development of PTSD, identify shared genetic risk between PTSD and other psychiatric disorders and highlight the importance of multiethnic/racial samples. As has been the case with schizophrenia and other complex genetic disorders, larger sample sizes are needed to identify specific risk loci

    A putative causal relationship between genetically determined female body shape and posttraumatic stress disorder

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    Background: The nature and underlying mechanisms of the observed increased vulnerability to posttraumatic stress disorder (PTSD) in women are unclear. Methods: We investigated the genetic overlap of PTSD with anthropometric traits and reproductive behaviors and functions in women. The analysis was conducted using female-specific summary statistics from large genome-wide association studies (GWAS) and a cohort of 3577 European American women (966 PTSD cases and 2611 trauma-exposed controls). We applied a high-resolution polygenic score approach and Mendelian randomization analysis to investigate genetic correlations and causal relationships. Results: We observed an inverse association of PTSD with genetically determined anthropometric traits related to body shape, independent of body mass index (BMI). The top association was related to BMI-adjusted waist circumference (WCadj; R = -0.079, P < 0.001, Q = 0.011). We estimated a relative decrease of 64.6% (95% confidence interval = 27.5-82.7) in the risk of PTSD per 1-SD increase in WCadj. MR-Egger regression intercept analysis showed no evidence of pleiotropic effects in this association (Ppleiotropy = 0.979). We also observed associations of genetically determined WCadj with age at first sexual intercourse and number of sexual partners (P = 0.013 and P < 0.001, respectively). Conclusions: There is a putative causal relationship between genetically determined female body shape and PTSD, which could be mediated by evolutionary mechanisms involved in human sexual behaviors

    Are Crop Forecasts News? The Impact of U.S.D.A. Announcements on Futures Market Prices

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    Statistical analysis shows that the release of U.S.D.A. crop forecasts for corn and soybeans affect future market traders' behavior. Traders have many sources of information, so we test the magnitude of 1Pto Pt i / Pt on the Chicago Board of Trade for announcement dates, t, against a random sample of other comparable dates

    Are relativistic effects significant for the analysis of whistler-mode waves in the earth's magnetosphere?

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    It is pointed out that relativistic effects lead to an increase in whistler-mode refractive index and to a decrease in the range of frequencies for which instability of these waves occurs. The latter effect is particularly important in a rarefied plasma in a strong magnetic field where the electron plasma frequency (IT) is of the order of or smaller than the electron gyrofrequency (Ω). The condition II ≲ Ω is satisfied in some regions of the Earth’s magnetosphere (e.g. outside the plasmasphere near the magnetospheric equator) and in these regions the analysis of whistler-mode waves requires the weakly relativistic rather than the nonrelativistic approach even if the thermal velocities of magnetospheric particles are well below the velocity of light

    Marketing Wine on the Web

    No full text
    E-commerce is penetrating agriculture, particularly for selling products directly to consumers. The wine industry is a case in point. The industry has long-term experience in direct marketing. Many wineries welcome patrons at their premises for wine tasting and for selling wine to them. Moreover, where the practice is allowed, shipping wine directly to consumers without the assistance of trade intermediaries is a significant sales channel. E-commerce was adopted early in the wine industries of wired high-income countries and the wine industry provides an opportunity for studying the adoption, use, and impact of e-commerce. Moreover, because e-commerce has not spread evenly through all branches of agriculture, lessons learned from the wine industry may provide useful insights for entrepreneurs and policy makers concerned with sections of agriculture or the food industry where e-commerce adoption lags behind. The specific objectives of the dissertation research project which we report here therefore were: (1) to assess the extent of e-commerce diffusion in the wine industries of Australia, California, Germany; (2) to identify e-commerce practices used by wineries for marketing wine; (3) to explain differences in wineries' e-commerce practices, and (4) to derive insights and implications for sections of agriculture that lag behind in ecommerce adoption

    Hired hooves: Transactions in a south Indian village factor market

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    Bullocks are an important resource in Indian agriculture where they are used as draft animals. Previous research suggests that farmers who do not own bullocks, or own bullocks in insufficient numbers relative to their land holdings, adjust bullock‐land ratios through transactions in the land market, rather than by hiring bullock services. The reasons given for this behaviour are that there are ‘inhibited’ or ‘missing’ village markets for bullock services. Results from a survey of the activities and transactions of six bullock contractors during an entire cropping period show that village markets for bullock services exist continuously and are far from being inhibited. Close monitoring of the bullock contractors’ transactions supplied rich evidence of the manifold contractual arrangements used in this village market for bullock services
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