153 research outputs found
One little Lebanese cucumber is not going to break the bank: Price in the choice of fresh fruits and vegetables
This paper reports on empirical research into individual consumer behaviour in the context of fresh fruit and vegetable purchases. The discussion draws on research results from two studies conducted around the actual shopping process. The findings suggest that consumersâ price response behaviour may not be consistent with that predicted by economic theory and that this could be significant at the aggregate level. The existence of âacceptable price rangesâ points to the presence of price thresholds within which consumers are relatively insensitive to price movements. Also of relevance is that the primary influence of the budget constraint may be at a broader level rather than at the level of choosing particular products.Demand and Price Analysis, Food Consumption/Nutrition/Food Safety,
Larval tolerance to food limitation is stronger in an exotic barnacle than in its native competitor
Calcareous defence structures of prey mediate the effects of predation and biotic resistance towards the tropics
Service provision for older forensic mental health patients: A scoping review of the literature
Bias from questionnaire invitation and response in COVID-19 research:an example using ALSPAC [version 1; peer review: awaiting peer review]
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Refining the Candidate Environment: Interpersonal Stress, the Serotonin Transporter Polymorphism, and Gene-Environment Interactions in Major Depression.
Meta-analytic evidence supports a gene-environment (GĂE) interaction between life stress and the serotonin transporter polymorphism (5-HTTLPR) on depression, but few studies have examined factors that influence detection of this effect, despite years of inconsistent results. We propose that the "candidate environment" (akin to a candidate gene) is key. Theory and evidence implicate major stressful life events (SLEs)-particularly major interpersonal SLEs-as well as chronic family stress. Participants (N = 400) from the Youth Emotion Project (which began with 627 high school juniors oversampled for high neuroticism) completed up to five annual diagnostic and life stress interviews and provided DNA samples. A significant GĂE effect for major SLEs and S-carrier genotype was accounted for significantly by major interpersonal SLEs but not significantly by major non-interpersonal SLEs. S-carrier genotype and chronic family stress also significantly interacted. Identifying such candidate environments may facilitate future GĂE research in depression and psychopathology more broadly
Generation Y in the Workplace
The recruitment and retention of Generation Y, individuals born between 1977 and 2002, concern the federal government and the Congressional Research Service particularly, as the retirement rate among Baby Boomers increases. A clear understanding of this generation's perceptions and expectations about work and career-related issues will assist the federal government in formulating its recruitment and retention strategies. Thus, this study identified and examined career choice factors and public service perceptions among members of Generation Y
Exploring the impact of selection bias in observational studies of COVID-19: a simulation study
BACKGROUND: Non-random selection of analytic subsamples could introduce selection bias in observational studies. We explored the potential presence and impact of selection in studies of SARS-CoV-2 infection and COVID-19 prognosis. METHODS: We tested the association of a broad range of characteristics with selection into COVID-19 analytic subsamples in the Avon Longitudinal Study of Parents and Children (ALSPAC) and UK Biobank (UKB). We then conducted empirical analyses and simulations to explore the potential presence, direction and magnitude of bias due to this selection (relative to our defined UK-based adult target populations) when estimating the association of body mass index (BMI) with SARS-CoV-2 infection and death-with-COVID-19. RESULTS: In both cohorts, a broad range of characteristics was related to selection, sometimes in opposite directions (e.g. more-educated people were more likely to have data on SARS-CoV-2 infection in ALSPAC, but less likely in UKB). Higher BMI was associated with higher odds of SARS-CoV-2 infection and death-with-COVID-19. We found non-negligible bias in many simulated scenarios. CONCLUSIONS: Analyses using COVID-19 self-reported or national registry data may be biased due to selection. The magnitude and direction of this bias depend on the outcome definition, the true effect of the risk factor and the assumed selection mechanism; these are likely to differ between studies with different target populations. Bias due to sample selection is a key concern in COVID-19 research based on national registry data, especially as countries end free mass testing. The framework we have used can be applied by other researchers assessing the extent to which their results may be biased for their research question of interest
Senior Recital: Christian Fabrizio Artieda, jazz guitar
This recital is presented in partial fulfillment of requirements for the degree Bachelor of Music in Music Education. Mr. Artieda studies jazz guitar with Trey Wright.https://digitalcommons.kennesaw.edu/musicprograms/1137/thumbnail.jp
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