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Articles 4291 - 4320 of 4534
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A Comparative Study Of Secondary Science And Social Studies Teachers' Attitudes And Behaviors Regarding Recycling And Recycling Education, John G. Aubuchon
A Comparative Study Of Secondary Science And Social Studies Teachers' Attitudes And Behaviors Regarding Recycling And Recycling Education, John G. Aubuchon
Theses
The purpose of this study was to investigate secondary science and social studies teachers' attitudes and behaviors regarding solid waste recycling and classroom instruction in recycling, moreover, environmental education. The survey 's population was randomly selected from St. Louis County secondary schools. The study documented the need for control of solid waste through recycling and t he need to educate to improve recycling. It provided an extensive review of the literature on recycling instruction as well as classroom recycling activities and lesson plans.
The study used a 12 item survey-questionnaire to identify groups of teachers with the most interest in …
Scheduling Effects Of 5-(3,3-Dimethyl-1-Triazeno)Imidazole-4-Carboxamide (Dtic) And 1,3-Bis-Chloroethyl-1-Nitrosourea (Bcnu) On Mouse Melanoma Cells B16cl5, Gracie V. Coffey
Scheduling Effects Of 5-(3,3-Dimethyl-1-Triazeno)Imidazole-4-Carboxamide (Dtic) And 1,3-Bis-Chloroethyl-1-Nitrosourea (Bcnu) On Mouse Melanoma Cells B16cl5, Gracie V. Coffey
Theses
DTIC and BCNU have been demonstrated to have enhanced chemotherapeutic effects in mice bearing Bl6 mouse melanoma cells. The order of administration seems to be important in maintaining optimum effects. This was shown is a study by Hill et al. (unpublished).
In the present study, mouse melanoma cells, Bl6CL4, were treated with either DTIC or BCNU. The drug was allowed to remain on the cells for 2, 3, or 4 days. The drug-containing media were then removed, the cells were washed and fresh medium was added. The cells were incubated in an atmosphere of 5% CO2 and 95% air at …
Transport Phenomena Of Copper Ions Through An Electromembrane, Ren-Fu Cheng
Transport Phenomena Of Copper Ions Through An Electromembrane, Ren-Fu Cheng
Theses
A separation process based on a new class of membrane ( the electromembrane ) was studied. Experiments were performed using three types of electromembrane to remove copper ions from aqueous solution. A Separation Cell Unit was designed and set up to investigate the transport of copper ions through the electromembranes under the influence of both an electric field and a concentration gradient. Fluxes achieved were much greater than those reported for other membrane processes, and the energy consumption was one half that of electrolytic deposition.
The Biodegradation Of Phenolics Using Mixed Liquor From Passaic Valley Sewerage Commissioners Plant, Newark, New Jersey, Daewon Pak
Theses
The biological degradation of phenol, O-chlorophenol, and 2,6-dichlorophenol was studied at room temperature in aerated 5 liter batch reactors using mixed liquor from Passaic Valley Sewerage Commissioners Plant (Newark, New Jersey). From the concentration versus time data, kinetic rate constants were determined for phenol (at 100 ppm), 2'-chlorophenol (at 20 ppm), and 2,6-dichlorophenol (at 10 ppm). Air stripping and adsorption were determined to be insignificant removal mechanisms for the three compounds studied.
It was noted that the biodegradation rates increased after the organisms were acclimated to 100 ppm phenol. In addition, on substrate exposure, the degradation rate increased from the …
The Kinetics And Hepatotoxicity Of Benzyl Chloride Vapor In Rats, Hari V. Rao
The Kinetics And Hepatotoxicity Of Benzyl Chloride Vapor In Rats, Hari V. Rao
Theses
Male Sprague Dawley rats (250g) were exposed to benzyl chloride vapor at a concentration of 220 ppm for 6 hours. During inhalation, the blood benzyl chloride concentration increased to reach a steady state level of 9-10 ug/ml between 4 and 6 hours of exposure. A small concentration of benzyl chloride (0.86 ug/ml) was present in the blood four hours after the termination of exposure. The absorption half life was 0.53 hours (0.39-0.81) and the elimination half life was l.12 hour (0.93-l.40).
The absorbed benzyl chloride was largely retained in the blood and some of it (0.22 ug/g) was sequestered into …
The Evaluation Of New Jersey's Remedial Response Program With Regard To The Use Of Risk Assessment In Determining Extent Of Cleanup, Susan Christine Gieser
The Evaluation Of New Jersey's Remedial Response Program With Regard To The Use Of Risk Assessment In Determining Extent Of Cleanup, Susan Christine Gieser
Theses
In order to effectively manage the cleanup of hazardous waste sites the New Jersey Department of Environmental Protection developed a comprehensive Master Plan. Under P. L. 1983, c. 222 (A-1255) the Hazardous Waste Advisory Council was charged with reviewing New Jersey's remedial action program. One issue identified by the Council for review was the use of risk assessment for determining extent of cleanup. The study was comprised of a literature search, review of legislation that impacts on this issue, interviews with DEP personnel, and consultation with others from academia and industry to recommend what is an acceptable risk and its …
Computer Simulation Of Drop Weight Impact Tests On Plastic Parts Or Sheeting, Upendra V. Patel
Computer Simulation Of Drop Weight Impact Tests On Plastic Parts Or Sheeting, Upendra V. Patel
Theses
The ASTM D3029 drop weight test on plasic parts or sheeting is simulated in this thesis. The simulation is accomplished by using the Bruceton staircase method or the Up-and-Down method and the normal distribution theory. The "Probit" method is also analyzed.
The simulation programs are done in FORTRAN computer language. First, the random number generator is used to find the probability value between 0 and 1.0. Then, the cumulative probability distribution formula is used to find the absolute standard normal value. This absolute standard normal value is converted in to X normal value using given input values of mean and …
Two Dimensional Diffusional Model For Leakage Of Macromolecules In The Interstitial Space, Suthiluk Dumrongsiri
Two Dimensional Diffusional Model For Leakage Of Macromolecules In The Interstitial Space, Suthiluk Dumrongsiri
Theses
Two dimensional diffusion of macromolecules through the interstitial in the hamster cheek pouch was studied with intravital fluorescence microscopy. After topical application of Bradykinin, the movement of Fluorescein isothiocyanate (FITC)-labeled dextrans of average molecular weight 150,000 daltons (Dextran 150) was recorded on videotape which latter was played back frame-by-frame for analysis by digital image processing. Leakage of macromolecules in response to topical application of Bradykinin occurs at discrete leakage site in post caplillary venules of 15-25 um diameter, rather than in the capillary themselves. A mathematical model of two dimensional convection plus diffusion was used to simulate the macromolecule transport. …
Cross-Cultural Study Of Maslow's Need Theory Of Motivation, Jitendra N. Mishra
Cross-Cultural Study Of Maslow's Need Theory Of Motivation, Jitendra N. Mishra
Theses
Abraham H. Maslow's Need Theory of Motivation was subjected to a cross-cultural scrutiny to see if his theory has universal application. It was thus also intended, to make a contribution to his theory since today, global interdependence is no longer a matter of belief, preference or choice. Rather, it is an inescapable reality.
To achieve this goal, an extensive Literature Survey was undertaken. It was found that his theory is more consistent with American value system. Nevertheless, if care is exercised, his theory can be useful in International context too, with some necessary modifications.
This paper is directed to save …
The Catabolism Of Arginine By Lactobacillus Brevis In A Chemostat, Jeanette Carque
The Catabolism Of Arginine By Lactobacillus Brevis In A Chemostat, Jeanette Carque
Theses
A total of thirty chemostat runs were evaluated for steady state biomass concentration of L. brevis and arginine deiminase activity at dilution rates ranging from 0.022 to 0.1.07 h-1 for a substrate feed consisting of 1.0% glucose and 0.5% arginine (w/v). Biomass concentration and enzyme activity responses were also evaluated for variations in glucose concentration from 0.05% to 1.5% and variations in arginine concentrations from 0.25% to 1.0% at a constant dilution rate (0.06 h-1).
The system exhibited multiple steady states for the range of dilution rates from 0.022 to 0.107 h-1. A steady state …
Terrestrial Invertebrates Of The Virgin Islands, Wendy Jackelow
The Pathological Indications Of Diabetes Mellitus, Patricia Gast
The Pathological Indications Of Diabetes Mellitus, Patricia Gast
Theses
None provided.
Anatomical Study And Illustrative Plates Of The Dwarf Galago Primate, Hugh Nachamie
Anatomical Study And Illustrative Plates Of The Dwarf Galago Primate, Hugh Nachamie
Theses
None provided.
Fuzzy Data And Logical Data Base Design, Karen Steelman
Synthesis And Characterization Of Poly(Amide-Sulfonamides): New Candidates For Reverse Osmosis Membranes., Thevarak Rochanapruk
Synthesis And Characterization Of Poly(Amide-Sulfonamides): New Candidates For Reverse Osmosis Membranes., Thevarak Rochanapruk
Theses
Commercially available aromatic diamines such as 4,4'-diamino diphenyl ether and 4,4'-diamino diphenyl methylene were treated with N-acetylsulf anilyl chloride to give the amino-sulf onamido-acetanilide derivatives. These derivatives were treated with 6 M hydrochloric acid to give the diamine monomers containing a preformed sulfonamide linkage. These monomers were polymerized with various diacid chlorides using a low temperature solution technique. Polymerizations using the Yamazaki reaction have also been investigated. The polymers obtained were characterized using infrared spectroscopy, thermal gravimetric analysis and differential scanning calorimetry.
Object With Pattern/Rubberstamps And The Metal Cutout, Joan Riccardi
Object With Pattern/Rubberstamps And The Metal Cutout, Joan Riccardi
Theses
None provided.
A Comparative Analysis Of Dna Molecular Crosslinking By Dichloro-N-Substituted Azaadamantane Isomers, Harry Robbins
A Comparative Analysis Of Dna Molecular Crosslinking By Dichloro-N-Substituted Azaadamantane Isomers, Harry Robbins
Theses
A series of anti, anti-dichloro-N-substituted azaadamantanes have been synthesized (Henkel et al, 1981, J. Org. Chem. , 46, 3483) representing conformationally rigid nitrogen mustards incorporated into an adamantyl framework with well defined stereochemistry and fixed separation distances between alkylating centers of 3.6 A (1) and 2.5 X (2,3) (Henkel et al, 1981, J. Org. Chem., 46, 3483) to be used as structurally rigid probes of DNA alkylation and intermolecular crosslink formation leading to cytotoxicity. The aqueous solution stability and the extent of intermolecular DNA crosslink formation for both the N-methyl and N-piperdinoethyl series of isomers have been measured using novel …
Nexus: Painting As A Link To A Primary Reality, Karen Sardisco
The Effects Of Early School Entrance On Standardized Test Performance, Janet Prior
The Effects Of Early School Entrance On Standardized Test Performance, Janet Prior
Theses
This study was designed to investigate whether early school entrance affected the level of standardized test performance as a child progressed through school.
It was hypothesized that students' standardized test scores would correlate significantly with the age at which they entered school, that the standardized test scores of early-entrants would be significantly lower than middle-entrants and late-entrants, that standardized test scores of middle-entrants would be significantly lower than those of late-entrants, and that there would be a significant difference between the standardized test scores of girls and boys whose chronological ages were similar at the time they began attending school. …
A Survey On Censorship In Missouri Secondary Schools, Janie Hutchinson Walker
A Survey On Censorship In Missouri Secondary Schools, Janie Hutchinson Walker
Theses
The purpose of this study was to determine by a general survey the extent of censorship in Missouri secondary schools. This survey was intended to obtain information regarding districts selection policies, policies pertaining to censorship procedures, actual incidence of censorship cases, titles found objectionable, and reasons for objections. It was also intended to elicit individual librarians' opinions regarding censorship cases in their school district and on contributing to a statewide newsletter on issues pertinent to censorship.
In this study, surveys were sent to a random sampling of 106 of the 546 school districts listed in the 1983-84 Missouri School Directory. …
Reactions Of Hydrogen With Chloroform And Trichloroethylene At High Temperatures, Burhan Mahmood
Reactions Of Hydrogen With Chloroform And Trichloroethylene At High Temperatures, Burhan Mahmood
Theses
The reactions of chloroform and trichloroethylene with hydrogen in the temperature range 550 to 1000°C were studied using tubular flow reactors of varying diameters. The residence time range was from 0.05 to 3.0 seconds.Two different concentrations of the chlorinated species were used, each with hydrogen in large excess. Flat temperature profiles (+/- 5°C) were achieved over 80 to 85 per cent of the 45 cm long reaction zone, with inlet gases preheated to about 400°C.
No chlorinated hydrocarbons, products or reactants were observed at /above 850°C. The major products at these temperatures were C2H2, C2 …
A Comparison Of The Biodegradation Of Phenol And O-Chlorophenol Using A Municipal Mixed Liquor And Three Commercial Microbial Preparations, Nigel P. Mcmullen
A Comparison Of The Biodegradation Of Phenol And O-Chlorophenol Using A Municipal Mixed Liquor And Three Commercial Microbial Preparations, Nigel P. Mcmullen
Theses
The biodegradation of phenol and O-chlorophenol was studied in six-liter batch reactors, using a municipal mixed liquor (from the Livingston, NJ treatment plant) that had not previously been exposed to either of the substrates. In addition, three commercial microbial preparations: BI-CHEM (Sybron), Hydrobac (Polybac), and LLMO (General Environmental Science), were tested alone and in combination with the municipal mixed liquor.
It was found that the municipal mixed liquor performed significantly better than any of the commercial preparations by themselves. When the commercial preparations were mixed with the municipal mixed liquor in a ratio of 1:10 it was found that the …
Children's Reactions To The Residential Treatment Setting, Barbara Jane Uhl
Children's Reactions To The Residential Treatment Setting, Barbara Jane Uhl
Theses
This study explores the emotional and psychological reactions of children to residential treatment centers, focusing on themes of separation anxiety, punishment, and the role of early attachment disruptions. Barbara Jane Uhl investigates how emotionally disturbed children perceive their institutional environments compared to children from public schools. Drawing from object relations theory and existing research on institutionalization, the study hypothesizes that children in residential treatment settings often internalize feelings of guilt and punishment as a result of separation from their families and the impersonal nature of institutional structures.
Using a mixed-methods approach, the study administered projective drawing tests and written assessments—including …
Assessing For The Risk Factors Of Cardiovascular Disease, Brenda L. Weihl
Assessing For The Risk Factors Of Cardiovascular Disease, Brenda L. Weihl
Theses
The purpose of this study was to develop and test the Wholistic Lifestyle Assessment as a tool to predict the risk factors of cardiovascular disease. Experiment 1 was conducted as a pilot study at Hope Presbyterian Church. Experiment 2 was conducted at the Spring Fitness Festival at the Bridgeton Community Center. There were 52 volunteers at the Fitness Festival who completed the questionnaire. The Wholistic Lifestyle Assessment included questions on demographic information, family history, and both direct and indirect questions related to the risk factors of cardiovascular disease. Mean scores and standard deviations were calculated for all variables . Pearson …
Strips, Marlin Minks
Strips, Marlin Minks
Theses
The PURPOSE OF THE THESIS is to utilize the human figure in movement as recorded over an extended period of time to create photographic panoramas of flowing, anamorphic design.
Molecular Crosslinking Of Dna By Dichloro-N-Methyl-Azaadamantane Isomers, Nancy A. Cabral
Molecular Crosslinking Of Dna By Dichloro-N-Methyl-Azaadamantane Isomers, Nancy A. Cabral
Theses
A series of disubstituted 2-azaadamantanes representing conformationally defined nitrogen mustards incorporated into an adamantyl framework with fixed separation distances between alkylating centers of 3.5 Å. (1: 4,8-dichloro-2-azaadamantane) and 2.5 Å (2: 4,9-dichloro-2-azaadamantane; 3: 4, 10-dichloro-2-azaadamantane) have been synthesized (Henkel et al., (1981) J. Org. Chem., 46, 3483 and unpublished results) as rigid probes of DNA alkylation and crosslinking processes leading to cytotoxicity. Figure. 1. 4,8 dichloro-2-aza adamantane Figure. 2. 4,9 dichloro-2-aza adamantane Figure. 3. 4,10 dichloro-2-aza adamantane The extent of intermolecular DNA crosslinking by the N-methyl isomer series has been measured by an ethidium bromide fluorescence assay. Results indicate that …
Comparison Of Existing Linewideth Measuring Systems To An Experimental Unit That Enables Minimization Of Vibration During Measurement, James G. De Witt
Comparison Of Existing Linewideth Measuring Systems To An Experimental Unit That Enables Minimization Of Vibration During Measurement, James G. De Witt
Theses
An experimental unit was built to minimize vibration during measurement of linewidths on integrated circuit photomasks. Linewidths in the range of 0.522 microns to 12.076 microns were measured with the Nikon LASER scanning system. Optical Specialties Inc. VLS-I video system, Nikon Micro Pattern Analyzer slit-scanning system, and the experimental unit. Average variances of 0.0096, 0.0164, 0.0377, and 0.3627 were calculated for each system respectively. The variances were compared using an F-test with the result that each system was significantly different for each linewidth. A mathematical model was derived to predict the smallest resolvable detail given the frequency and amplitude of …
An Investigation Of The Competition Between Surface/Internal Latent-Image Formation In Agbr Core-Shell Emulsions, A. Gary Difrancesco
An Investigation Of The Competition Between Surface/Internal Latent-Image Formation In Agbr Core-Shell Emulsions, A. Gary Difrancesco
Theses
The models for surface /internal latent-image formation by J.F. Hamilton and others were qualitatively investigated. Techniques were also developed to precipitate core-shell emulsions. Although the emulsion precipitation system employed was not highly stable, the major aspects of surface/ internal latent-image competition were successfully demonstrated. It was found that the level of surface /internal latent-image competition has a significant effect on the photographic response of core-shell emulsions.
Criteria For Selecting Materials Suitable For Application To Modified Atmosphere Packaging Of Fish, Yvonne Allen
Criteria For Selecting Materials Suitable For Application To Modified Atmosphere Packaging Of Fish, Yvonne Allen
Theses
The process of preservation is an important step in stabilizing perishable items in order for them to withstand distribution, handling, and storage. Preservation can be achieved by several methods, but the method of concern in this paper is that of modified atmosphere storage which is reported to extend the shelf-lives of perishable products. Studies on modified atmosphere storage have emphasized the preservating action of carbon dioxide (CO2) in reducing (1) the extent of microbial spoilage, and (2) the tissue pH of the products so stored in comparison to those stored aerobically. Low tissue pH creates unfavourable environment which negatively influences …
A Study Of Rochester Area Hospital Information Systems, Shantanu Bhagoji
A Study Of Rochester Area Hospital Information Systems, Shantanu Bhagoji
Theses
None provided.