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Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
RELATIONSHIPS BETWEEN AN ISOPOD PARASITE, PROBOPYRUS PANDALICOLA, AND ONE OF ITS CARIDEAN SHRIMP HOSTS, PALAEMONETES PALUDOSUS
Description:
In Chapter I the habitats of the larval and adult Probopyrus pandalicola on Palaemonetes paludosus are described. The female was obliquely positioned within the shrimp branchial chamber, with its head directed posterodorsally in relation... In Chapter II information is provided on the reproduction, parasite attachment, postlarval development and population structure of P. pandalicola on P. paludosus collected monthly for two years from a site in the Wakulla River and a... In Chapter III the distribution of infected P. paludosus and the infection levels of P. pandalicola with respect to site, season and host size and sex are described. Infected P. paludosus occurred as far as 33 km upstream in many coastal... In Chapter IV the effects of P. pandalicola on the sex characters of P. paludosus are described, and possible mechanisms for these effects are discussed. P. pandalicola sterilize the female host by preventing ovarian maturation but do... The potential economic importance of crustacean castrators is detailed in Chapter V. Many hosts of crustacean castrators are of commercial value to man as a direct source of food. At least 28 species of economically valuable caridean...
AN EXPERIMENTAL STUDY OF THE EFFECTS OF ASSERTIVENESS IN THE INTERPERSONAL COMMUNICATION STYLE OF A WOMAN MANAGER ON PERCEPTIONS OF MANAGERIAL EFFECTIVENESS, CREDIBILITY RATINGS, AND ATTITUDES TOWARD WOMEN AS MANAGERS
EFFECTS OF STRUCTURAL AND PICTORIAL SUPPORT UPON AURAL LEARNING OF CONCEPTS, RULES AND PROBLEM-SOLVING SKILLS
Description:
This study compared the effectiveness of the structural and pictorial elements of a diagram with each other, with no diagram, and with their combined impact upon the immediate and delayed (one week) learning of intellectual skills ... The experimental design employed was the post hoc control group only. Seventy vocational students from Pensacola Junior College were randomly assigned to four treatment groups. All received aural instruction; in addition, one group... The aural instruction was a unit on using Maslow's Need Hierarchy to solve problems. It taught five concepts, three rules and problem-solving through selection and application of the appropriate rule. Two forms of a thirty-item criterion... The treatments were administered through listening stations. The accompanying diagrams were in booklet form. Immediately after the instruction one form of the test was distributed. One week later subjects completed the second form of the... The tests were scored and the resulting data were analyzed using a 1x4 analysis of variance for each separate criterion measure (immediate concepts, delayed concepts, immediate rules, delayed rules, immediate problems, delayed problems).... For learning concepts both treatment groups receiving pictorial diagrams performed significantly better than the others on the immediate test but on the delayed tests all three visualized treatment groups did better than the group... The treatment group receiving both diagrams obtained significantly higher scores than any of the others on both rules tests. On the immediate problem-solving test no significant differences were found among the groups. This finding may be imputed to a problem with the test since it is inconsistent with the findings on the rules test and not parallel with the... On the immediate total criterion measure the groups receiving both diagrams and the pictorial diagrams only scored significantly higher than any of the others. On the delayed total criterion measure only the group receiving both diagrams... On all but one of the criterion measures at least one of the visual treatments was superior to the audio treatment alone. Which treatment(s) were superior depended on the desired learning outcome. Based on these results, it may be...
THE IDENTIFICATION AND VALIDATION OF CRITICAL INCIDENTS IN CLASSROOM DISCIPLINE AND THE SOLUTIONS REPORTED BY FIRST-YEAR VOCATIONAL TEACHERS IN THE STATE OF FLORIDA
A STUDY OF THE EFFECTS OF ORAL COMMUNICATION FEEDBACK AND THREATS OF PUNISHMENT ON INTRINSIC MOTIVATION
Description:
Traditionally, organization theorists and researchers have held to the idea that the intrinsic and extrinsic forces that affect human motivation are independent and additive. The maximum motivation to perform a task would occur, then, ...
"The present investigation was designed to study the effect of two instructional treatments on the achievement of students of different abilities--Verbal and Spatial. This was achieved by studying the interaction between the two...
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