3,084 research outputs found

    Sabine Otten

    Get PDF
    This chapter gives biographical information, and, more importantly, summarizes Sabine Otten's mein areas of research interests and -findings

    The Ethical Mutual Fund Performance Debate: New Evidence from Canada

    Get PDF
    Although the academic interest in ethical mutual fund performance has developed steadily, the evidence to date is mainly sample-specific. To tackle this critique, new research should extend to unexplored countries. Using this as a motivation, we examine the performance and risk sensitivities of Canadian ethical mutual funds vis-à-vis their conventional peers. In order to overcome the methodological deficiencies most prior papers suffered from, we use performance measurement approaches in the spirit of Carhart (1997, Journal of Finance 52(1): 57–82) and Ferson and Schadt (1996, Journal of Finance 51(2): 425–461). In doing so, we investigate the aggregated performance and investment style of ethical and conventional mutual funds and allow for time variation in the funds’ systematic risk. Our␣Canadian evidence supports the conjecture that any␣performance differential between ethical mutual funds and their conventional peers is statistically insignificant

    Combining X-ray CT and 3D printing technology to produce microcosms with replicable, complex pore geometries

    Get PDF
    Measurements in soils have been traditionally used to demonstrate that soil architecture is one of the key drivers of soil processes. Major advances in the use of X-ray Computed Tomography (CT) afford significant insight into the pore geometry of soils, but until recently no experimental techniques were available to reproduce this complexity in microcosms. This article describes a 3D additive manufacturing technology that can print physical structures with pore geometries reflecting those of soils. The process enables printing of replicated structures, and the printing materials are suitable to study fungal growth. This technology is argued to open up a wealth of opportunities for soil biological studies

    System optimization of gasdynamic lasers, computer program user's manual

    Get PDF
    The user's manual for a computer program that performs system optimization of gasdynamic lasers is provided. Detailed input/output formats are CDC 7600/6600 computers using a dialect of FORTRAN. Sample input/output data are provided to verify correct program operation along with a program listing

    Challenges in imaging and predictive modeling of rhizosphere processes

    Get PDF
    Background Plant-soil interaction is central to human food production and ecosystem function. Thus, it is essential to not only understand, but also to develop predictive mathematical models which can be used to assess how climate and soil management practices will affect these interactions. Scope In this paper we review the current developments in structural and chemical imaging of rhizosphere processes within the context of multiscale mathematical image based modeling. We outline areas that need more research and areas which would benefit from more detailed understanding. Conclusions We conclude that the combination of structural and chemical imaging with modeling is an incredibly powerful tool which is fundamental for understanding how plant roots interact with soil. We emphasize the need for more researchers to be attracted to this area that is so fertile for future discoveries. Finally, model building must go hand in hand with experiments. In particular, there is a real need to integrate rhizosphere structural and chemical imaging with modeling for better understanding of the rhizosphere processes leading to models which explicitly account for pore scale processes

    The platinum nuclei: concealed configuration mixing and shape coexistence

    Get PDF
    The role of configuration mixing in the Pt region is investigated. For this chain of isotopes, the nature of the ground state changes smoothly, being spherical around mass A174A\sim 174 and A192A\sim 192 and deformed around the mid-shell N=104 region. This has a dramatic effect on the systematics of the energy spectra as compared to the systematics in the Pb and Hg nuclei. Interacting Boson Model with configuration mixing calculations are presented for gyromagnetic factors, α\alpha-decay hindrance factors, and isotope shifts. The necessity of incorporating intruder configurations to obtain an accurate description of the latter properties becomes evident.Comment: Accepted in Physical Review

    Exploring the role of emotional and behavioral problems in a personality-targeted prevention program for substance use in adolescents and young adults with intellectual disability

    Get PDF
    Contains fulltext : 228171.pdf (publisher's version ) (Open Access)Background: Adolescents and young adults with a mild intellectual disability or borderline intellectual functioning (MID-BIF) are at risk for problematic substance use and are more likely to have emotional and behavioral problems than peers without MID-BIF. A personality-targeted prevention program called Take it Personal! effectively reduces substance use in adolescents and young adults with MID-BIF. Aims: The program’s effectiveness was examined on its secondary goal: reducing emotional and behavioral problems. The potentially moderating role of these problems on the program's effectiveness with substance use was also explored. Methods and procedures: Substance use and emotional and behavioral problems were compared between participants in Take it Personal! (n = 34) and those in the control condition (n = 32) in a quasi-experimental pre-posttest study with a three-month follow-up. Effectiveness and moderation were assessed with multilevel models. Outcomes and results: Take it Personal! seems to reduce rule breaking. There were no significant effects on anxiety, withdrawal, and aggression. None of the problem domains moderated the program’s effectiveness on substance use frequency. Conclusions and implications: Take it Personal! may effectively reduce rule breaking. Moreover, adolescent and young adults with different levels of emotional and behavioral problems benefit equally in terms of reduced substance use.10 p
    corecore