63 research outputs found

    The Impact of Coaching On The Leadership Practicum Process

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    A challenge exists to fully utilize practicum experiential learning due to the nature of a practicum and lack of adequate supervision and guided reflection. Students engaged in leadership practicums apply theoretical concepts and models while advancing their personal leadership. Often, students could obtain a more thorough learning experience if guided by a coach who asks critical questions and creates a venue for more in-depth self-reflecting. This paper discusses the impact coaching has on undergraduate leadership practicums and the benefits students can gain from the guidance provided by leadership coaches. A practical application provided a means to qualitatively evaluate the benefits of coaching during leadership practicums while highlighting the resources needed and limitations

    Individual Variation in the Extent to Which Drug Cues Acquire Control Over Motivated Behavior.

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    Cues associated with natural or drug rewards can acquire such powerful control over behavior that individuals sometimes have difficulty resisting them. Indeed, the ability of reward-related cues to motivate excessive behavior has been implicated in drug addiction, obesity, and binge eating. There is, however, considerable individual variation in the influence of reward-associated cues on behavior. We have argued that this is due, in part, to individual variation in the degree to which reward-related cues acquire incentive motivational properties (are attributed with incentive salience), and thus acquire the ability to act as incentive stimuli. For example, if a localizable stimulus (the conditional stimulus, [CS]) is repeatedly paired with delivery of a food reward (the unconditional stimulus, [US]) the food cue itself becomes attractive, eliciting approach and engagement with it in some rats (sign-trackers, STs). However, in other rats the food cue itself is not attractive, but instead upon CS presentation these animals approach the location where food will be delivered (goal-trackers, GTs). Yet other rats vacillate between the cue and the goal. A localizable food cue is also a more effective conditional reinforcer, and is more effective in reinstating food-seeking behavior, in STs than in GTs. Thus, only in some animals does a predictive cue also acquire the properties of an incentive stimulus. Recent studies suggest that the propensity of animals to attribute incentive salience to a food cue predicts the extent to which a drug cue acquires incentive properties. While there is now considerable evidence for individual variation in the extent to which a classically conditioned food cue is attributed with incentive salience, there is much less information concerning individual variation in the extent to which classically conditioned drug cues acquire incentive motivational properties. This dissertation will address the following questions: 1) Does individual variation in the tendency to attribute incentive value to a food cue predict the tendency to attribute incentive value to a classically conditioned drug cue? and 2) Are there differences in the ability of food and drug cues that are predictive vs. ones that also acquire incentive motivational properties to engage brain reward systems?PhDPsychologyUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/109018/1/lmyager_1.pd

    Application of Fourier transform infrared spectroscopy to determine the reaction rate equation for cross-linking Matrimid 5218 with ethylenediamine in methanol

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    Master of ScienceDepartment of Chemical EngineeringJohn R. SchlupThe cross-linking reaction of the polyimide Matrimid 5218 with ethylenediamine (EDA) in methanol was investigated using Fourier transform infrared (FTIR) spectroscopy. Peaks associated with breaking imide bonds and the formation of amide bonds were identified. Using an internal standard peak of 1014 cm⁻¹ allowed for quantitative analysis to be applied. The peak areas, calculated by slice area, were used for absorbance ratio analysis to follow the cross-linking reaction as a function of time. Lastly, the absorbance values for the decreasing peak 1718 cm⁻¹ were used to calculate the order of reaction for the reaction rate of the mechanism

    Interrogation flexible de données relationnelles à l'aide de concepts disjunctifs

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    International audienceA DB querying system is said to be flexible if it adapts to the end user expectations and expertise. This paper introduces a novel strategy to fuzzy querying that reduces the gap between complex search conditions end users have in mind and formal queries understood by the underlying DB system. In the Flexible Querying By Example paradigm, the proposed strategy, called DCQ standing for Disjunctive Concept Querying, extends a flexible querying system with subjective disjunctive concepts: it proposes two stored procedures that can be embedded in any relational database management system to build a formal query from a few user-given examples that represent the diversity of what the user is looking for. The first procedure infers the membership function of the implicit imprecise concept underlying the provided examples, with the specificity of allowing for complex disjunctive concepts: it is able to both capture properties shared by most of the selected representative tuples as well as specific properties possessed by only one specific representative tuple. The second procedure allows to exploit the resulting fuzzy concept in a query.Dans le contexte de l'interrogation flexible de bases de données, cet article présente une nouvelle stratégie de requête par l'exemple floue, appelée DCQ (Disjunctive Concept Querying), qui permet de traiter des concepts disjonctifs subjectifs : il propose deux procédures stockées qui peuvent être implémentées dans tout système de gestion de base de données relationnelles pour construire des requêtes formelles à partir de quelques exemples illustrant la diversité de ce que l'utilisateur recherche. La première procédure infère la fonction d'appartenance du concept imprécis sous-jacent aux exemples représentatifs fournis, avec la particularité de permettre d'exprimer des concepts complexes disjonctifs : elle est capable de capturer à la fois les propriétés partagées par la plupart des exemples représentatifs fournis et les propriétés spécifiques présentes dans des exemples plus isolés. La seconde procédure permet de construire la requête correspondant à ce concept flou

    Interrogation flexible de données relationnelles à l'aide de concepts disjunctifs

    No full text
    International audienceA DB querying system is said to be flexible if it adapts to the end user expectations and expertise. This paper introduces a novel strategy to fuzzy querying that reduces the gap between complex search conditions end users have in mind and formal queries understood by the underlying DB system. In the Flexible Querying By Example paradigm, the proposed strategy, called DCQ standing for Disjunctive Concept Querying, extends a flexible querying system with subjective disjunctive concepts: it proposes two stored procedures that can be embedded in any relational database management system to build a formal query from a few user-given examples that represent the diversity of what the user is looking for. The first procedure infers the membership function of the implicit imprecise concept underlying the provided examples, with the specificity of allowing for complex disjunctive concepts: it is able to both capture properties shared by most of the selected representative tuples as well as specific properties possessed by only one specific representative tuple. The second procedure allows to exploit the resulting fuzzy concept in a query.Dans le contexte de l'interrogation flexible de bases de données, cet article présente une nouvelle stratégie de requête par l'exemple floue, appelée DCQ (Disjunctive Concept Querying), qui permet de traiter des concepts disjonctifs subjectifs : il propose deux procédures stockées qui peuvent être implémentées dans tout système de gestion de base de données relationnelles pour construire des requêtes formelles à partir de quelques exemples illustrant la diversité de ce que l'utilisateur recherche. La première procédure infère la fonction d'appartenance du concept imprécis sous-jacent aux exemples représentatifs fournis, avec la particularité de permettre d'exprimer des concepts complexes disjonctifs : elle est capable de capturer à la fois les propriétés partagées par la plupart des exemples représentatifs fournis et les propriétés spécifiques présentes dans des exemples plus isolés. La seconde procédure permet de construire la requête correspondant à ce concept flou
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