16,238 research outputs found

    Can biorelevant media be simplified by using SLS and tween 80 to replace bile compounds?

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    In the scientific literature, the use of a surfactant is recommended for both designing quality control tests for water insoluble or sparingly water soluble drugs and for predicting the bioavailability of drugs from various types of formulations. Since the number of poorly soluble drugs is increasing, the selection of adequate dissolution test for these becomes more and more important. The aim of the present study was to develop predictive and discriminatory test methods based on surfactants that are recommended in the literature. Particular respect was given to the use of sodium lauryl sulfate and Tween 80, the two most commonly used surfactants for this purpose. Tamoxifen was used as a model drug. Dissolution experiments were performed using various concentrations of the two surfactants in buffer media typically used to prepare biorelevant test media. Results were then compared with those deriving from the same test formulations in biorelevant and simplified “biorelevant” media. Results from this study indicate that the concentration of surfactant has a huge impact on both the rate and extent of drug release from the formulation and also on the discriminatory power of the test. However, they also indicate that a well designed and validated test medium containing SLS or Tween 80 can be useful in terms of establishing a discriminatory test medium that possibly could also be used to assure batch to batch bioequivalence. Therefore, the approach described in the present paper might be very helpful for developing predictive and discriminatory methods in early formulation development for poorly soluble drugs and which could also be adopted for QC

    The impact of the judicial objective function on the enforcement of environmental standards.

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    We investigate the influence of a judge’s objective function on the type of sanctions used for enforcing environmental standards. We focus on the difference between monetary and non-monetary penalties. Therefore, we examine the extent to which judges take social costs of sanctions into account when making judgments in court in the context of environmental violations. Furthermore, we conduct an empirical analysis to test the main findings of the theoretical model using court data from several Belgian jurisdictions. We find that besides minimizing environmental damages judges also take social costs of sanctions into account in their decision-making.

    The impact of judicial objective function on the enforcement of environmental standards.

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    We investigate the influence of a judge’s objective function on the type of sanctions used for enforcing environmental standards. We focus on the difference between monetary and non-monetary penalties. Therefore, we examine the extent to which judges take social costs of sanctions into account when making judgments in court in the context of environmental violations. Furthermore, we conduct an empirical analysis to test the main findings of the theoretical model using court data from several Belgian jurisdictions. We find that besides minimizing environmental damages judges also take social costs of sanctions into account in their decisionmaking. The first part of this paper uses quantitative methods to assess the success of party affiliation, personal interests and the economic profile of the constituencies in predicting voting behavior. Thanks to the detailed censuses of 1846 on agriculture, industry and population, it is possible to typify the economic make-up of the electoral districts in much more detail than in the British case. However, the analysis of roll-call voting proves that party affiliation and personal and constituency economic interests are insufficient to explain the shift towards free trade. The second part of the paper then discusses the role played by political strategy and ideas in the liberalization of corn tariffs, using a qualitative analysis of the debates on tariff policy. The large number of votes over a forty year period allows us to document the relationship between ideas and interests in a new way.Environmental policy; monitoring and enforcement; non-monetary sanctions

    The Economists' Quartet - A Game, not a Theory

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    In this paper we introduce a new card game called The Economists' Quartet. Its aim is twofold: it is designed to make students interested in the life of contemporary and former economists and their most important ideas, as well as be an entertaining pastime for 'grown-up' post graduate economists. We will describe three different versions of the game, their rules and strategies, and add some interesting parallels to life in the academic world of economists. The first version is a two-person noncooperative game, where the achievements of two economists are compared to each other. The second version is a multiple person game where the players have to collect complete quartets (i.e. set of four economists) by drawing cards from each other. Although every version has its specific advantages, we especially recommend the third version of the game which is a multiple person game with bargaining, where the players have to find corresponding pairs of two economists. This third version of the game is the most demanding one, since winning the game depends largely on knowing much about the economists, their work and ideas. We conclude with some considerations about playing the game and an outlook to future versions of The Economists' Quartet. To avoid misunderstandings, we want to point out that we do not examine any specific economic question here, we just want to provide a card game about economists made by economists for economists.

    Judicial policy lines in the criminal sanctioning of environmental offenses: an empirical study.

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    We analyze judicial policy lines concerning criminal environmental sanctioning using a unique European dataset of individual criminal cases, including case-specific information on offenses and offenders. We investigate policy choices made by criminal judges in lower courts as well as the relevant court of appeal. The sanctioning policy of judges proofs to be varied as well as consistent. Judges decide to postpone convictions for cases they deem less important. They carefully balance effective and suspended sanctions, in general using them as substitutes, but in specific cases opting to use them cumulatively. Overall, judges in lower courts balance environmental and classic criminal law and aim at protecting individuals and their possessions as well as the environment.
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