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Articles 6781 - 6810 of 6935
Full-Text Articles in Entire DC Network
Thursdays At The Torch: The Negotiation Of Non-Monogamous Relationships Among Members Of A Lesbian S/M Community, Lori Harmon
Thursdays At The Torch: The Negotiation Of Non-Monogamous Relationships Among Members Of A Lesbian S/M Community, Lori Harmon
Master's Theses
No abstract provided.
Characterization Of Deletion Sites In A Human Collagen-Like Locus, Marissa A. Michaels
Characterization Of Deletion Sites In A Human Collagen-Like Locus, Marissa A. Michaels
Master's Theses
No abstract provided.
Gender And Power In Demand/Withdraw Patterns Of Marital Interaction, Cheryl L. Stenzel
Gender And Power In Demand/Withdraw Patterns Of Marital Interaction, Cheryl L. Stenzel
Master's Theses
No abstract provided.
Creativity And Culture: Perception, Interaction, Opposition, And Marginality, Marilyn Badran Weigel
Creativity And Culture: Perception, Interaction, Opposition, And Marginality, Marilyn Badran Weigel
Master's Theses
No abstract provided.
You Can Take On As Much As You Want: Why U.S. Catholic Priests Find Retirement So Satisfying, Jonathon Lee Wiggins
You Can Take On As Much As You Want: Why U.S. Catholic Priests Find Retirement So Satisfying, Jonathon Lee Wiggins
Master's Theses
No abstract provided.
Regulation Of The Activities Of The Three Nitrate Reductase Isoforms In Wild-Type Soybean Glycine Max (L.) Merr. (Variety Williams) By Protein Phosphorylation, Maribel T. Joson
Regulation Of The Activities Of The Three Nitrate Reductase Isoforms In Wild-Type Soybean Glycine Max (L.) Merr. (Variety Williams) By Protein Phosphorylation, Maribel T. Joson
Master's Theses
No abstract provided.
Saccharomyces Cerevisiae-Produced Recombinant Pfs230: A Malaria Transmission-Blocking Vaccine Candidate, Kathryn M. Glynn
Saccharomyces Cerevisiae-Produced Recombinant Pfs230: A Malaria Transmission-Blocking Vaccine Candidate, Kathryn M. Glynn
Master's Theses
No abstract provided.
Single-Sex Versus Co-Educational Secondary Schooling And Its Impact On Freshman, College Women's Self-Efficacy Levels Toward Academic Achievement, Shelley Robertson
Single-Sex Versus Co-Educational Secondary Schooling And Its Impact On Freshman, College Women's Self-Efficacy Levels Toward Academic Achievement, Shelley Robertson
Master's Theses
No abstract provided.
Effects Of Perinatal Exposure To Cocaine On Sexually Differentiated Gonadotropin Regulation In Rats, Jihun M. Lee
Effects Of Perinatal Exposure To Cocaine On Sexually Differentiated Gonadotropin Regulation In Rats, Jihun M. Lee
Master's Theses
No abstract provided.
An Examination Of The Relationship Between Gender Role Orientation And Self-Esteem In A College-Aged Population, Karen Komosa
An Examination Of The Relationship Between Gender Role Orientation And Self-Esteem In A College-Aged Population, Karen Komosa
Master's Theses
No abstract provided.
Assessing The Ability To Predict Acadmeic Readiness For Education And Influence The Level Of Academic Development Of Grade School Children Through The Testing Of And Improvement In Several Key Physical Skills, Craig S. Nelson
Master's Theses
No abstract provided.
Interactive Effects Of Aluminum And Humic Substances On Salvinia, Jeffrey L. Gardner, Safaa H. Al-Hamdani
Interactive Effects Of Aluminum And Humic Substances On Salvinia, Jeffrey L. Gardner, Safaa H. Al-Hamdani
Research, Publications & Creative Work
Salvinia increased the pH of the growth media within two days to near neutral pH in the absence of Al with and without humic substances. In most cases, Al in the absence of humic substances reduced salvinia growth, chlorophyll a and b concentrations, and carotenoid concentrations. Reductions were greater with increasing concentrations of Al and humic substances alleviated some of the toxic effects of Al. Also, corrected treatments (pH 3.9) influenced an increase in the above parameters for most treatments compared to uncorrected treatments (pH varied according to the treatment). Anthocyanin concentrations of salvinia increased in treatments receiving Al. The …
System Identification Theory Approach To Cohesive Sediment Transport Modelling, Huixin Chen
System Identification Theory Approach To Cohesive Sediment Transport Modelling, Huixin Chen
School of Engineering, Computing and Mathematics Theses
Two aspects of the modelling sediment transport are investigated. One is the univariate time series modelling the current velocity dynamics. The other is the multivariate time series modelling the suspended sediment concentration dynamics. Cohesive sediment dynamics and numerical sediment transport model are reviewed and investigated. The system identification theory and time series analysis method are developed and applied to set up the time series model for current velocity and suspended sediment dynamics. In this thesis, the cohesive sediment dynamics is considered as an unknown stochastic system to be identified. The study includes the model structure determination, system order estimation and …
Capture And Release Of Lagrangian Floats By Eddies In Shear Flow, G. I. Shapiro, E. D. Barton, S. L. Meschanov
Capture And Release Of Lagrangian Floats By Eddies In Shear Flow, G. I. Shapiro, E. D. Barton, S. L. Meschanov
School of Biological and Marine Sciences
No abstract provided.
Dynamics Of Dense Water Cascades At The Shelf Edge, G. I. Shapiro, A. E. Hill
Dynamics Of Dense Water Cascades At The Shelf Edge, G. I. Shapiro, A. E. Hill
School of Biological and Marine Sciences
No abstract provided.
Cognitive Appraisals In Obsessive-Compulsive Disorder & Other Anxiety Disorders, Jackie Maccallam
Cognitive Appraisals In Obsessive-Compulsive Disorder & Other Anxiety Disorders, Jackie Maccallam
School of Psychology Theses
This research applied ideas from the cognition-emotion literature to some of the theories in the OCD literature, and in so doing took'Va multi-dimensional approach to the understanding of OCD. The aim of the study was to explore the nature of 'emotionalcognitive profiles'^ of people with OCD,. and to compare these 'profiles' with those of people with other anxiety disorders and people from a non-clinical population.. Participants from the three groups i.e. an OCD group, ah anxiety group and a non-clinical group were asked to rate a number of appraisal dimensions, in response to four vignettes. There were 10 participants in …
A Comparison Of The Relative Impact Of A Cognitive-Behavioural Intervention Consisting Of An Education Component, With A Postal Education Package, On Coping With Osteoporosis, Charlotte Davenport Clarke
A Comparison Of The Relative Impact Of A Cognitive-Behavioural Intervention Consisting Of An Education Component, With A Postal Education Package, On Coping With Osteoporosis, Charlotte Davenport Clarke
School of Psychology Theses
A study was carried out in order to compare the effects of a cognitive-behavioural intervention, with a postal education package, on coping with osteoporosis. Thirty osteoporosis sufferers were divided into three groups. One group received an intervention programme consisting of education, relaxation techniques, and instruction in the use of coping strategies for pain and stress. A comparison group received an education booklet on osteoporosis sent to them through the postal system. The study also included a non-treatment control group. Measures of locus of control, depression, anxiety, pain, and disease knowledge, were taken pre-and post-intervention. lt was predicted that the intervention …
The Effect Of Ultrasonic Frequency Upon Enhanced Killing Ofp. Aeruginosa Biofilms, Zhen Qian, Richard D. Sagers, William G. Pitt
The Effect Of Ultrasonic Frequency Upon Enhanced Killing Ofp. Aeruginosa Biofilms, Zhen Qian, Richard D. Sagers, William G. Pitt
Faculty Publications
It is widely recognized that the bacteria sequestered in a biofilm on a medical implant are much more resistant to antibiotics than their planktonic counterparts. Recent studies have shown that application of antibiotic along with low power ultrasound significantly increases the killing of planktonic bacteria by the antibiotic. Herein is reported a similar application of antibiotic and ultrasound to sessile bacteria in biofilms of Pseudomonas aeruginosa on a polyethylene substrate. Biofilm viability was measured after exposure to 12 μg/ml gentamicin sulfate and 10 mW/cm2 ultrasound at frequencies of 70 kHz, 500 kHz, 2.25 MHz, and 10 MHz. The results …
Life-Cycle Parameters Of Tisbe Battagliai (Copepoda: Harpacticoida) As Indicators Of Chronic Toxicity, Timothy Dorian Williams
Life-Cycle Parameters Of Tisbe Battagliai (Copepoda: Harpacticoida) As Indicators Of Chronic Toxicity, Timothy Dorian Williams
School of Biological and Marine Sciences Theses
There is growing concern about the fate and biological effects of chemical contaminants in the marine environment. In the United Kingdom, the present ability to detect the potential long-term effects of contaminants is limited by the lack of suitable laboratory methods for measuring chronic toxicity. The harpacticoid copepod Tisbe battagliai was selected as a candidate test organism and a suite of chronic toxicity test methods was developed for measuring the effect of chemical contaminants on individual copepods (postembryonic development, reproduction and life-table analysis) and populations of T. battagliai. The development of chronic test methods proceeded alongside investigations of the influence …
Effects Of Copper On Gill Structure And Physiology In Carcinus Maenas, Dagmar Karina Hebel
Effects Of Copper On Gill Structure And Physiology In Carcinus Maenas, Dagmar Karina Hebel
School of Biological and Marine Sciences Theses
The effects of sublethal copper exposure at three levels of biological organisation were studied in the common shore crab Carcinus maenas (L.) (Crustacea, Decapoda). The three levels included the ultrastructure of respiratory and osmoregulatory gill tissues; ventilatory physiology (scaphognathite activity); and tissue metallothionein levels. Respiratory gill epithelia were more sensitive to sublethal copper exposure than osmoregulatory gill tissues. The cellular damage observed included severe epithelial necrosis and vacuolation, hyperplasia and haemocyte infiltration. In the respiratory gills, these changes were first present following exposure to 100 µg Cu Lˉ¹ At 500 µg Cu Lˉ¹, there was complete degeneration of the epithelia. …
Environmental Variables, Including Pollutants, Affecting Living Benthonic Foraminiferida, Catherine Jane Manley
Environmental Variables, Including Pollutants, Affecting Living Benthonic Foraminiferida, Catherine Jane Manley
School of Biological and Marine Sciences Theses
Studies of living benthonic foraminiferal assemblages carried out by marine biologists are comparatively rare. This study of the changes in foraminiferal assemblages from three subtidal sites near Plymouth, U.K., has been carried out with the intention of determining the importance of various abiotic and biotic variables to the foraminiferal communities studied using statistical correlation. Temperature and salinity at depth and particle size characteristics together with organic content, bacterial abundance and type, and other meiofauna present were assessed monthly with samples taken for foraminiferal content, and for seasonal diatom analysis. Deformed specimens were very rare in the examined samples of natural …
The In-Situ Erosion Of Intertidal Muds, Malcolm Christie
The In-Situ Erosion Of Intertidal Muds, Malcolm Christie
School of Biological and Marine Sciences Theses
Intertidal mudflats can experience rapid morphological changes, and are both sources and sinks of fine cohesive sediment within an estuary. Successful environmental management of these regions depends upon in-situ measurements, which help specify the interactions between the active processes and so allow the development of predictive models that the management practices require. The Profiles of Sediment Transport system (POST) has been developed in order to make high frequency measurements of velocity and suspended sediment concentration profiles in very shallow water (i.e. when depth, h < 1.0 m). Electromagnetic current meters and optical sensors were miniaturised to allow measurements within a few centimetres of the sea bed and provide fine scale resolution of vertical profiles. Two in-situ experiments, located in the Severn and Humber estuaries, examined the response of a mudflat to changing environmental factors, and in particular, studied the influence of local waves and tidal currents in very shallow water of depth (h)< 1.0 m. A value of 0.127 Nmˉ²was considered to be representative of the critical erosion shear stress (Tint) at Portishead, while at Skeffling τait was estimated to be about 0.31 Nmˉ². The effects of wave and current action were quantified and expressions were used to describe the relationships between velocity, bed shear stress and concentration. An expression relating near bed concentration to mean velocity (U ) at Skeffling was simply: Concentration (gLˉ¹) = 1.908 U + 0.193 when h< 1.0 m. R² = 0.730 The physical processes causing erosion and deposition across two mudflats have been identified, and the predictive expressions are considered to provide first order approximations for sediment concentrations and transport behaviour, for similar conditions at other North European sites. The results showed that the shallow water periods at the beginning and end of tidal coverage were extremely important in determining the surface character of the mudflat, and any erosion was most marked at these times. Small waves can be crucial to erosion because of their large contribution to the bed shear stresses in shallow water. Ignoring biological and chemical variables (both of which can control of erosion), it is proposed that for typical temperate environmental conditions, some form of mudflat erosion is likely when h< 1.0 m, and either the significant wave height (H2) is greater than 0.25 m, or the near bed velocities exceed 0.2 msˉ¹.
The Influence Of Vitamin E On The Immune System Of The Rainbow Trout (Oncorhynchus Mykiss), Janet Roper
The Influence Of Vitamin E On The Immune System Of The Rainbow Trout (Oncorhynchus Mykiss), Janet Roper
School of Biological and Marine Sciences Theses
This study took the form of three nutritional trials each examining the effects of vitamin E on various physiological, haematological and immunological functions of the rainbow trout. The preliminary study investigated the effect of feeding three experimental diets with different levels of alpha-tocopherol supplementation (0, 100 and 800 mg kgˉ¹ diet), on growth, health and various factors of the non-specific immune response. Liver alpha-tocopherol levels reflected the dietary intake of the vitamin. The fish fed the diet deficient in alpha-tocopherol showed reduced growth and increased mortality They had pale enlarged livers, their hepatosomatic indices and erythrocyte fragility was significantly higher …
Ecophysiology Of Neomysis Integer (Mysidacea: Peracarida), Stephen Derek Roast
Ecophysiology Of Neomysis Integer (Mysidacea: Peracarida), Stephen Derek Roast
School of Biological and Marine Sciences Theses
Neomysis integer (Leach) (Peracarida: Mysidacea) is a common component of the hyperbenthos of Western European estuaries, and this study focused on the ecophysiology and ecotoxicology of this mysid. Behavioural and physiological responses of N. integer to physical and chemical variables (current velocity, substratum type, temperature and salinity) were measured in the laboratory to gain better understanding of how this mysid maintains position in estuaries. Current velocity was the most important factor controlling position maintenance, and N. integer had a maximum swimming speed of c. 9cm sˉ¹. Position maintenance was facilitated by a muddy substratum and was not affected by salinity. …
Student Violence And School Practice : Experiences Of A Lower Secondary Male Student Using The Methodology Of Participant Observation, Denese Shepherdson
Student Violence And School Practice : Experiences Of A Lower Secondary Male Student Using The Methodology Of Participant Observation, Denese Shepherdson
Theses: Doctorates and Masters
School experiences are said to be a preparation for life. The experience of violence perpetrated against a male student over a period of years has resulted in wide reaching implications for him, his family, the perpetrators, his peer group and school staff. This case study examines the experiences of a provocative victim and his bullies.
The Lived Experiences Of Single Teenage Mothers In Botswana : A Phenomenological Study, Tshepiso D. Mojapelo
The Lived Experiences Of Single Teenage Mothers In Botswana : A Phenomenological Study, Tshepiso D. Mojapelo
Theses: Doctorates and Masters
This study was designed to explore-the lived-experiences of single teenage mothers in Botswana, as perceived by them. The participants were teenage mothers who had to leave school due.to pregnancy. They had either completed year one in secondary school or were in year two. Their ages ranged between 16 and 19 years. The ages of their babies range from five to 10 months, with the exception of one child who was three years old. All teenage mothers came from low socio-economic backgrounds with families whose parents were either not working, or were working in the lowest paying jobs as cleaners or …
Critical Competencies For Effective Teaching : Perceptions Of Home Economics Teachers, Esthery D. Kunkwenzu
Critical Competencies For Effective Teaching : Perceptions Of Home Economics Teachers, Esthery D. Kunkwenzu
Theses: Doctorates and Masters
Home economics is a multi-faceted, inter-disciplinary, integrated field of study drawing from a multitude of disciplines including sociology, psychology, anthropology, chemistry, physics, architecture and the arts (Henry, 1995). As a school subject, home economics in Malawi is taught at primary school, secondary school as well as at university level. This study explores home economics teachers' perceptions of competencies critical for teaching the subject. Data was collected from secondary school home economics teachers in Malawi. The study is a qualitative investigation of how experienced teachers describe effective teaching of the integrated home economics syllabus, and what they perceive as critical competencies …
Empowered Narratives : Drama Praxis And The Archetype As A Means To Authentic Voice For Women, Beryl Chalk
Empowered Narratives : Drama Praxis And The Archetype As A Means To Authentic Voice For Women, Beryl Chalk
Theses: Doctorates and Masters
This thesis contests the status of gender as a social construct by considering how women develop a personal ethnography when engaging in drama and expressive arts practices. There is no known research on drama praxis as a signifier to Australian women's identity, a major focus of this work will be, 'Who has the authority over women's expression and means of expression? Who has the authority to interpret the experience? Who has authority over other people's experience?' This thesis addresses the internalised- oppression which refers to the process by which women internalise the 'fictionalised' reality prescribed to them as women marked …
What Is The Intimate Experience Of Couples Following The Woman's Cancer-Related Breast Surgery?, Lynne Amor
What Is The Intimate Experience Of Couples Following The Woman's Cancer-Related Breast Surgery?, Lynne Amor
Theses: Doctorates and Masters
The purpose of this phenomenological study is to describe and interpret the experience of couples following the woman's surgery for breast cancer, in order to gain an in depth understanding of how this mutilating surgery affects their everyday lives. Breast cancer is the most prevalent form of cancer in Australian women, and in most industrialised nations. Women in Australia have a one in fourteen lifetime risk of developing the disease. Little is known concerning what meanings this surgery brings to the intimacy experienced between partners. It is important to seek knowledge of the phenomenon of intimacy, how the couples understand …
Teachers Of Mathematics Teach Mathematics Differently : A Case Study Of Two Teachers, Jennie Bickmore-Brand
Teachers Of Mathematics Teach Mathematics Differently : A Case Study Of Two Teachers, Jennie Bickmore-Brand
Theses: Doctorates and Masters
This thesis investigates the different approaches adopted by two teachers for teaching mathematical content at the upper primary level of education. Questions have been raised by researchers about the impact teachers' philosophical background may have on their perception of how mathematics should be taught. Similarly questions have been asked about the role of content in mathematics education in relation to the process of education. The two teachers held different beliefs about what they were doing when they were teaching mathematics and why they were teaching that way. Their methodological emphases were different; one could be described as being more learner-centred …