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  • 1
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Summary The types and levels of pesticide residues in soil samples from five west Alabama counties were determined. Soil samples were taken randomly from preselected sites in each county and were analyzed by gas chromatography. Pesticide residues were found in all samples examined, even soil samples from areas where records indicated that no pesticides had been applied directly. The most prevalent chlorinated hydrocarbons were benzene hexachloride and aldrin while the most abundant organophosphate was malathion.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied social psychology 15 (1985), S. 0 
    ISSN: 1559-1816
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Psychology
    Notes: Although a fundamental assumption of behavior decision theory is that individuals must generally believe they can control their fate if their behavior is to be influenced by subjective expected utility (SEU), the hypothesis that the positive relationship between SEU and behavior is stronger for those with internal locus of control had not been directly tested. That hypothesis was assessed in two separate longitudinal studies of adolescents. The behavior studied in one sample was the initiation of cigarette smoking, and in the other it was the onset of drinking alcohol. The hypothesis received weak support in both studies.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied social psychology 18 (1988), S. 0 
    ISSN: 1559-1816
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Psychology
    Notes: The importance of friend influence as a determinant of adolescent behavior has primarily been inferred from research that has repeatedly demonstrated the behavior of friends to be similar. Homogeneity among peers, however, could also be due to a selection process whereby adolescents choose and keep friends whose behavior is similar to their own. Most previous studies have used cross-sectional designs that cannot delineate the source of peer homogeneity; this study employed sociometric data from longitudinal research on adolescent smoking and drinking to separate and examine the selection and influence processes. Although the findings indicate some support for the friend influence model, the acquisition hypothesis from the selection model accounts for substantially more of the adolescent-friend relationship. The implications of these results for past and future research concerning the role of peers in adolescence are discussed.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied social psychology 19 (1989), S. 0 
    ISSN: 1559-1816
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Psychology
    Notes: A classic social psychological model is that external variables influence behavior through their impact on subjective expected utility, the extent to which more good or harm is expected from behavior. The purpose of this research was to determine whether subjective expected utility is a major intervening variable that links external variables and the onset of alcohol drinking and cigarette smoking. The data are from two longitudinal studies of adolescents. The findings suggest that subjective expected utility does not account for the relationship between external variables and behavior.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK and Boston, USA : Blackwell Publishing, Inc.
    Real estate economics 32 (2004), S. 0 
    ISSN: 1540-6229
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: This paper investigates the phenomenon of sale and leasebacks as one way in which firms may use financial contracts to rearrange their organizational architecture. A theoretic model links the length of initial leaseback period to incentives to make noncontractible future investments in the lease relationship and predicts that firms choose shorter leases when landlords make relatively important investments. Using a sample of 71 sale and leaseback events from the 1990s, we document a significant mean abnormal return of 1.3% for shareholders of seller/lessee firms announcing relatively short leasebacks. The evidence suggests that firms may use sale and leasebacks to optimize their claims to real estate.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of housing and the built environment 15 (2000), S. 233-248 
    ISSN: 1573-7772
    Keywords: Central Europe ; Eastern Europe ; property ; restitution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: Abstract Changing the property rights arrangements to land and buildings is a fundamental step in the transformation process underway in Eastern and Central Europe and elsewhere. The concept of property hinges on the choice of property conventions adopted by each society. Defining what property means is a complex and controversial task, especially when the scope of change in transition countries is so dramatic. Restitution is often a first step in acknowledging a latent property rights paradigm in these nations. Since property rights form the foundation of how and why economies function, it is important to identify the theoretical and empirical evidence relating property rules to economic outcomes. In this paper, we investigate why restitution is implemented in some countries but not in others. Further, if restitution is adopted, how is it implemented? We speculate that the choice of restitution as a property institution may be a proxy for the development of future institutions.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-6601
    Source: Springer Online Journal Archives 1860-2000
    Topics: Sociology
    Notes: Abstract The principles that behavior is strongly influenced by the behavior of friends, and that people select each other to be friends on the basis of common characteristics, are based in large part on the many studies of adolescents that found the behavior of friends to be similar. In most of these studies, subjects were asked to describe, the behavior of their friends, and this information was then related to subjects' reports of their own behavior. The research on adolescent smoking and drinking described in this paper departs from that tradition by including friend reports of friend behavior so that results based on the different sources for measuring friend behavior can be compared. Subject report of friend behavior is a stronger correlate, of adolescent behavior than friend report of friend behavior, but the two sources for measuring friend behavior produce the same correlations with subject behavior when using longitudinal designs and controlling for prior subject behavior. The findings are discussed in the context of theoretical and methodological considerations of peer influence and selection.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of pharmacokinetics and pharmacodynamics 20 (1992), S. 319-331 
    ISSN: 1573-8744
    Keywords: methylprednisolone ; helper T lymphocytes ; pharmacodynamics ; cell trafficking ; chronopharmacology ; immunosuppression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A two-compartment dosed model was used to characterize the cell trafficking behavior of helper T cells in response to various single doses of methylprednisolone. Steroids are assumed to inhibit the circadian-determined cell return from extravascular sites to blood in a classic inhibitory pattern reflected by an IC50.The rate of cell efflux from tissues is modeled with a cosine function having a period of 24 hr and a maximum at about 1 am. Nonlinear leastsquares regression employing differential equations was used to analyze helper T-cell data from three human studies from our laboratory. The IC50 value of methylprednisolone of 12–19 ng/ml approximates receptor KD values. Simulations were performed to demonstrate the log-linear role of steroid dose or AUCon the integral of effect of helper T cells over a wide range of methylprednisolone doses. This pharmacodynamic model allows flexibility for characterizing any type of steroid dosing regimen and is relevent in describing complex response data for corticosteroid immunosuppressive effects in man.
    Type of Medium: Electronic Resource
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