Legacy Open Access Electronic Theses and Dissertations (1957-2011)Collection of openly accessible theses and dissertations written by CSUN students ranging from 1957-2011http://hdl.handle.net/10211.2/36612024-03-29T10:28:55Z2024-03-29T10:28:55ZThe TTY: a means of communicationClark, Richard S.http://hdl.handle.net/10211.3/2151752023-06-16T17:48:50Z1975-08-01T00:00:00ZThe TTY: a means of communication
Clark, Richard S.
This paper attempts to develop a rationale for the development of equal access to telephone communications for people who cannot use the present telephone system without specially adapted TTY equipment. The author has traced the development of various systems purported to answer the needs of deaf people in using the telephone. He points out the frustrations encountered by people who have used these systems and indicates actions which can be taken to alleviate the inequality of telephone service in the United States. the Rehabilitation Act of 1973 and the amendments to that Act form the legal basis for recommendations to improve telephone communications for people who can neither hear nor speak. The possibility of favorable interpretation of the Architectural Barriers Act of 1968 regarding equal access to telephone communications is presented through the eyes of a lawyer employed by the United States Government. Recommendations for further study of the responsibilities of telephone companies, tax supported agencies, and the media are made in the hopes that they will be pursued toward the goal of equal access to telephone communications for people who can neither hear nor speak.
Paper prepared for a graduate project at California State University, Northridge.
Includes bibliographical references (leaves 28-29).; California State University, Northridge. Department of Education.
1975-08-01T00:00:00ZThe aging, validation, and back-calculation of the date of birth and settlement date of young-of-the-year California halibut (Paralichthys Californicus) into Alamitos Bay California using a new technique for the grinding of sagittal otolithsJensen, Robert Emeryhttp://hdl.handle.net/10211.3/2004532020-09-04T23:41:25Z1990-08-01T00:00:00ZThe aging, validation, and back-calculation of the date of birth and settlement date of young-of-the-year California halibut (Paralichthys Californicus) into Alamitos Bay California using a new technique for the grinding of sagittal otoliths
Jensen, Robert Emery
Fifty-six young-of-the-year <YOY) California halibut (Paralichthys californicus), captured from Alamitos Bay, California, were aged using new method for grinding both faces of sagittal otoliths. The method was developed to produce a microscopic thin section that preserves growth rings at the margins while increasing the resolution of internal growth rings. The age-length relationship existing between six YOY halibut born in February and December can be described by the linear equation Y = 1.3x + 26.6 <r = 0.96, P < .01) where Y is the age (days) and x is the standard length <mm SL). The standard lengths of YOY halibut ranged from 34 to 81 mm in this data set. The rate of growth calculated from this model was 0.738 mm/day. The age-length relationship existing between 50 YOY halibut born in March, April. May, and June can be described by the linear equation Y = 0.9x- + 30.6 (r = 0.91, P < .01) where Y ls the age (days) and x ls the standard length (mm SL). The standard lengths of YOY halibut in this data set ranged from 11 to 142 mm. The rate of growth calculated from this growth model was 1.104 mm/day. The YOY halibut born in February and December (n = 6) were excluded from the following analysis because it was felt that these outliers would have a disproportionate influence on the growth model. The second degree polynomial equation: Y = 12.6 + 1.6x - .005x2; r = 0.94 was calculated for estimated age regressed on the standard length of YOY California halibut (n = 50) born in March, April, May, and June. The growth rate calculated from this curvilinear model was 0.86 mm/day for YOY California halibut whose range in standard length was 10 to 80 mm. The model predicted an overall growth rate of 1.25 mm/day for YOY with standard lengths ranging from 10 to 150 mm SL, The range in standard length and the associated back-calculated age of YOY halibut captured for this study was 11 to 142 mm SL and 38 and 154 days old, respectively. The age at settlement was 25 to 31 days. Three methods of validation involving the immersion of YOY halibut in various solutions of tetracycline were employed. The daily formation of growth rings was not validated by these methods. Recent work on laboratory reared California halibut has validated the production of growth increments as a dally phenomenon (Lavenberg, pers. comm. 1989).
Includes bibliographical references (leaves 47-80); California State University, Northridge. Department of Biology.
1990-08-01T00:00:00ZThree bivariate shape distributionsAftandilian, Alex D.http://hdl.handle.net/10211.3/1961992020-09-04T23:31:19Z2004-06-01T00:00:00ZThree bivariate shape distributions
Aftandilian, Alex D.
Recently, motivated by the seemingly accelerating number of 3D models available on the Web, a search engine for 3D models was developed. To query the search engine, a user can specify an example 3D model; the search engine then returns models with similar shapes. To facilitate these searches, 3D models are represented as shape descriptors that can be compared to measure the dissimilarity between shapes. A challenging problem is finding a shape descriptor that can discriminate between many classes of shape. For example, a comparison of the descriptors for a horse and cow should yield a lower dissimilarity than a comparison of the descriptors for the horse and a mug. One approach to this problem is to represent a 3D model's shape as a probability distribution, called a shape distribution, and treat the distance between two 3D models ' pdfs as the dissimilarity between the models ' shapes, for some chosen pdf distance function. For example, a 3D model's D2 shape distribution models the Euclidean distance between two area-weighted random points from the 3D model's surface, and the pdf distance function chosen could, for example, measure the area between two given pdfs. In the initial experiments involving shape distribution based descriptors, the D2-based descriptor was the most discriminating shape distribution based descriptor, however , in recent experiments comparing many different types of descriptor, the D2-based descriptor was outperformed by several other descriptors. To investigate whether the discriminating power of shape distribution based descriptors can be improved , we experimented with descriptors based on three bivariate shape distributions we call DNl, DN2, and DA3. In a precision-recall experiment involving a database of 150 3D models, the {DNl, DN2, DA3}-based descriptor had, on average, {9%, 38%, 14%} greater discriminating power than the D2-based descriptor.
Includes bibliographical references (leaf 21); California State University, Northridge. Department of Computer Science.
2004-06-01T00:00:00ZCreating peace through art : using art to teach conflictMartinez, Renee M.http://hdl.handle.net/10211.3/1805892021-10-06T22:47:51Z2005-06-01T00:00:00ZCreating peace through art : using art to teach conflict
Martinez, Renee M.
This thesis explores how visual art can teach conflict resolution and violence prevention to young adolescents. It focuses on developmental factors in early adolescence (11-14 year olds), and the ways art can help young teens develop skills for peaceful problem-solving. The paper details how visual art production and analysis can help adolescents learn many of the same concepts taught in non-violence education.
The thesis investigates arts' capacity to deepen comprehension of underlying principles commonly presented in conflict resolution/violence prevention curricula, such as perspective-taking, negotiation, effective communication, self-expression, decision-making and self-reflection. Likewise, educational research indicates that art can provide opportunities for adolescents to practice creative problem-solving, group interaction and critical thinking. Also examined are art and transfer learning, art education and positive social development, and the violence prevention goals of community-based youth art programs
An applied critical pedagogy approach is presented, given its compatibility in supporting and expanding non-violent conflict resolution skills. Also included are community-based and in-school workshop curricula, along with respective funding proposals. Within these workshops, art production and analysis are used to help teach violence prevention and enhance conflict resolution skills. Workshops are designed so that participants apply these skills while creating a group-produced public art project (e.g., a booklet and poster); their artwork advocates for peace, and is in tum used to educate peers about non-violence.
Includes bibliographical references (leaves 95-104); California State University, Northridge. Department of Art.
2005-06-01T00:00:00Z