Description:
The direct effect of spouse presence during graded exercise testing on anxiety and performance has not been previously delineated. Therefore, the purposes of this study were to (a) ascertain if spouse presence during graded exercise testing affects state anxiety or physiological performance variables, and (b) determine differences in psychological status between cardiac patients and healthy adults.
Description:
The present research explored the role of RES manipulation on ongoing Sidman avoidance behavior. Results of the first phase revealed that both experimental drugs significantly altered RES levels in predicted directions after the first measure; however, only stimulated subjects maintained significant differences after 5 days. No activity-level differences were noted in any subjects due to drugs across time. Sidman avoidance data indicated that RES-stimulated subjects showed significant deteriora…
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Description:
This study examines the effects of delisting on firm value, risk and market liquidity. In a world where markets are becoming increasingly integrated, delistings may prove counter productive.
We use the unique event, free from company specifics, that occurred on January 2, 1990 in the stock exchanges of Singapore and Malaysia to test for the above effects. On that day, dual listed companies were required to delist from the foreign stock exchange. We also use this event to test if the Singapore a…
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Description:
The purpose of this study was to compare muscle strength and psychomotor performance measures in healthy (n = 18) and frail (n = 21) groups of elderly women utilizing movements requiring various amounts of strength and ballistic action. Subjects were community-dwelling females ranging in age from 66-92 years. Evaluations of functional assessment of motor skills and grip strength occurred. Psychomotor performance was measured through production of aiming movements on a Digitizing Tablet. RT, MT,…
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Description:
The purpose of this research is to determine the effects of systematic approach to computer integration on implementation cost, implementation time, user satisfaction, and level of integration in small business environments. It is believed that decreased costs and implementation time result from the use of systematic approaches to computer integration. Systematic approaches may also result in higher user satisfaction and a higher level of system integration.
Description:
This study's problem concerned the conflict between the ethical desirability of giving participants relevant information about themselves versus the current practice of withholding sociometric data. Group counseling was selected to provide a relative basis for comparison of the effects of structured sociometric feedback (SSF). This study's ultimate purpose was to gather empirical evidence concerning the appropriateness and safety of conveying sociometric data to participants of sociometric stud…
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Description:
This study explored the effectiveness of a student question creation process engaging students actively in self, peer, and instructor interaction in development of affective, cognitive, and meta-cognitive skills. Employing a mixed-methods sequential explanatory design assigning both treatment and control activities sequentially in an alternating pattern over a six week period, students' performance on exams as well as their perceptions of various aspects of the student question creation proces…
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Description:
In their studies on student motivation in th4e 1990s, Gorham & Christophel and Christophel & Gorham found that students perceived their own demotivation to be caused by instructor behaviors. While there are studies that explore the topic of student demotivation and other studies that illustrate the great influence instructors have on student information seeking behaviors, research focusing on the connection between these two concepts is almost nonexistent. Using Gorham & Christophel's concept o…
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Description:
This research is designed to test how sublethal exposure to copper affects tadpole predator-escape behavior and how quickly tadpoles recover. After exposure, tadpoles were separated. Escape behavior was recorded for two-thirds of exposed tadpoles while one-third of the exposed population was measured weekly to determine growth and recovery. Control tadpoles were consumed within 15 minutes whereas those exposed to higher concentrations were consumed at a slower rate, which does not support the h…
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Description:
Sucrose fading and intermittent access are two common procedures that induce alcohol consumption in rodents. Sucrose fading procedures involve exposing ethanol naïve rats to a mixture of ethanol and sucrose and gradually reducing the concentration of sugar. Intermittent access procedures involve providing rats with access to ethanol on alternating days. Given that rats will consume ethanol without sucrose, the role of sugar in the sucrose fading procedure is unclear. Rats must be ethanol naïve …
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Description:
Miranda abilities, individual characteristics, and contextual factors are critical elements to evaluate in determining the validity of Miranda rights waivers and confessions. Research indicates that many individuals waive their Miranda rights without adequate comprehension or reasoning. In addition, personality characteristics of suggestibility and compliance are key factors influencing waiver decisions. Furthermore, scholars found that situational anxiety likewise impairs Miranda abilities and…
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Description:
The purpose of this study was to investigate the effects of supplemental on-task and performance contingencies on the acquisition of math skills for elementary school children identified as seriously emotionally disturbed/behaviorally disordered, attention deficit disordered, and students without disabilities. Three experimental conditions were utilized, involving teacher-directed instruction with (a) no contingencies, (b) contingencies for academic performance, and (c) contingencies for academ…
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Description:
The purposes of the study were (1) to validate five selected supportive and five selected non-supportive nonverbal movements, and (2) to determine the effects of the nonverbal expressions upon subjects' learning of a gross motor skill. Subjects were twenty-eight college women who met the established criteria. The testing instrument was the Bachman Ladder. Fourteen subjects received the supportive-- non-supportive nonverbal treatment sequence; fourteen subjects received the reverse treatment seq…
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Description:
A preliminary investigation of the extent to which supportive services contribute to the effectiveness of a methadone treatment program was conducted.
Description:
In this dissertation, small and large NaCl particle-derived surfaces (Ra > 40 microns) were generated on 2D Zn materials, and the surfaces were carefully studied concerning topography, corrosion behavior, and bone cell compatibility. Increases in surface roughness accelerated the corrosion rate, and cell viability was maintained. This method was then extended to 3D porous scaffolds prepared by a hybrid AM/casting technique. The scaffolds displayed a near-net shape, an interconnected pore struct…
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Description:
The purpose of this study was to examine the effects of different surfaces on lower limb motion and encountered pressures at two locations on the plantar surface of the right foot. Nine females performed five trials for each of four surface conditions. The results provided no evidence for surface-related changes in experienced foot contact pressures. Both asphalt and grass surfaces resulted in the shortest relative time of forefoot immobility. No surface related differences were found for the r…
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Description:
Multi-walled carbon nanotube aggregates can be suspended in the aqueous phase by natural organic matter. These aggregates are ingested by filter feeding zooplankton. Ingested aggregates result in decreased growth and decreased reproduction. These effects may be caused by reduction in energy input from normal feeding behavior. pH alters natural organic matter structure through changes in electrostatic repulsion. Altered natural organic matter structure changes multi-walled carbon nanotube aggreg…
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Description:
Three suspended solids types containing a range of physicochemical characteristics were used to determine the effect of suspended solids on the bioavailability of acenaphthene, 1,2,4,5-tetrachlorobenzene, zinc, and chlordane to Daphnia magna and Pimephales promelas. Generally, the bioavailability of zinc and chlordane decreased due to interactions with all suspended solids types while bioavailability of acenaphthene and 1,2,4,5-tetrachlorobenzene were not clearly reduced. Partition coefficients…
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Description:
Clinical evidence has demonstrated that the anxiolytic effects produced by the selective 5-hydroxytryptamine1A (5-HT1A) receptor agonist, gepirone, increase progressively over one to three weeks of treatment.
Description:
The problem of this study was to investigate the effectiveness of systematic desensitization on test anxiety, general anxiety, and attitude toward school among fifth-grade elementary-school children.
Description:
The objectives of this study were (1) to identify and describe task-based documentation; (2) to identify and describe any purported changes in users attitudes when IT migration was preceded by task-based documentation; (3) to suggest implications of task-based documentation on users attitude toward IT acceptance. Questionnaires were given to 150 university students. Of these, all 150 students participated in this study. The study determined the following: (1) if favorable pre-implementation att…
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Description:
The purpose of this study is to investigate the effects of task difficulty and magnitude of reinforcement upon the performance of mentally retarded institutionalized individuals in a level of aspiration situation.
Description:
Although dominant effects of tasks on individuals' information-seeking behavior is accepted by many scholars, a limited number of studies has been conducted to reveal the nature of the relationship between tasks and information-seeking behavior. In their studies, some earlier researchers categorized tasks according to their complexity while others did the same according to the specifications of tasks. Two of the groundbreaking researchers in this area are Katriina Byström and Kalervo Järvelin w…
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