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2004

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Articles 10081 - 10110 of 10399

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The Reproduction Biology Of Chub (Leuciscus Cephalus L. 1758) In Topçam Dam Lake (Aydın, Turkey), Hüseyi̇n Şaşi Jan 2004

The Reproduction Biology Of Chub (Leuciscus Cephalus L. 1758) In Topçam Dam Lake (Aydın, Turkey), Hüseyi̇n Şaşi

Turkish Journal of Veterinary & Animal Sciences

In this study, the reproduction biology of 332 chub (Leuciscus cephalus L. 1758) was studied from June, 1999, to June, 2000, on a monthly basis in Topçam Dam Lake. Egg numbers were estimated in 65 females caught just prior to spawning. The sex and age compositions of chub were determined. The specimens were composed of 27.11% males and 72.89% females. Male and female chub become sexually mature in the second year of their life spans. Spawning is in March and April. The fecundity of chub varies from 2100-66,400 per female. The average egg diameter was between 0.391 and 0.744 mm …

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The Tyranny Of Time: Vulnerable Children, Bad Mothers, And Statutory Deadlines In Parental Termination Proceedings, Catherine J. Ross Jan 2004

The Tyranny Of Time: Vulnerable Children, Bad Mothers, And Statutory Deadlines In Parental Termination Proceedings, Catherine J. Ross

GW Law Faculty Publications & Other Works

This paper explores issues raised by the Adoption and Safe Families Act of 1997 (ASFA) and contends that the Act may have unwittingly harmed some children and mothers by creating a categorical imperative that a child's health and safety must be a paramount consideration in child welfare decisions. After discussing the reforms made by the Act, this paper analyzes hard cases, in particular cases involving substance abusing mothers and battered mothers, and concludes that in some instances children's interests in these cases might be better served by a flexible standard where the child asserts a claim to a continued relationship …

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Self-Reported Versus Recorded Sleep Position: An Observational Study, Susan J. Gordon, Karen A. Grimmer, Patricia Trott Jan 2004

Self-Reported Versus Recorded Sleep Position: An Observational Study, Susan J. Gordon, Karen A. Grimmer, Patricia Trott

Internet Journal of Allied Health Sciences and Practice

Background: Patient reports of ‘usual’ and ‘recent’ sleep positions are used by allied health professionals to direct the management of waking and nocturnal musculoskeletal symptoms. However no published studies have determined if self reports of sleep position are valid, consistent or reliable. An observational study was conducted at the Centre for Sleep Research of the University of South Australia. Twelve subjects, four in each of the age groups 18 to 39 years, 40 to 59 years and 60 years and over, without any known sleep disorders or sleep-disturbing medical or emotional problems participated in the study. Subjects spent two non-consecutive …

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Use Of Herbal Medications By Patients In A Conventional Health Care Setting: A Health Education Challenge, Jill Delaubenfels Jan 2004

Use Of Herbal Medications By Patients In A Conventional Health Care Setting: A Health Education Challenge, Jill Delaubenfels

Graduate Research Papers

The use of herbal medication is growing rapidly in the United States, but use of herbal medication is not without risk. This is a veritable mine field of health care risks. The federal regulation of herbal medicine as a dietary supplement raises safety and efficacy concerns. The American public lacks knowledge of herbal medicines, often believing that "natural" means "safe". Patients who combine the use of herbal medicine with conventional medicine pose challenges for health care providers. Is the health care provider aware of their patient's use of herbal medication? Is the health care provider adequately educated on the safe …

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Software For Optimizing International Water Resources Management, Richard C. Peralta, S. Wu Jan 2004

Software For Optimizing International Water Resources Management, Richard C. Peralta, S. Wu

Civil and Environmental Engineering Faculty Publications

The Simulation/Optimization MOdeling System (SOMOS) has modules adapted for a range of international water resource management needs. The SOMOA module is best for field groundwater and conjunctive water management situations. It employs several analytical simulation models and several optimization methods to give appropriate optimal guidance for situations having sparse data. SOMOA requires understanding of the limitations of common analytical equations. It does not require experience in finite difference or element numerical modeling. SOMOS also has modules ideal for situations in which there is sufficient data for numerical modeling or aquifer and stream-aquifer systems. Emphasized here are SOMOA and its applications …

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Multi-Objective Conjunctive Use Optimization, H. C. Fayad, Richard C. Peralta Jan 2004

Multi-Objective Conjunctive Use Optimization, H. C. Fayad, Richard C. Peralta

Civil and Environmental Engineering Faculty Publications

This paper presents a simulation/optimization model based on artificial neural networks and genetic algorithms for solving multi-objective conjunctive water use problems. The model simulates and optimizes water flows in a hydraulically connected reservoir-stream-aquifer system. It is a powerful tool to help water managers and authorities in developing conjunctive water management strategies and evaluating tradeoffs between conflicting goals.

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Optimization Modeling For Groundwater And Conjunctive Use Water Policy Development, Richard C. Peralta, R. Shulstad Jan 2004

Optimization Modeling For Groundwater And Conjunctive Use Water Policy Development, Richard C. Peralta, R. Shulstad

Civil and Environmental Engineering Faculty Publications

Planners must sometimes decide how to restrict or reduce groundwater use to prevent unacceptable future problems. Often there are several alternatives (policies). Comparing policies can involve formulating a sustained groundwater yield optimization problem and computing an optimal groundwater pumping strategy for each. This is easy via the SOMOS simulation/optimization (S/O) model. Subsequent analysis can include: flow simulation to predict transient water level response to pumping; and economic evaluation to estimate costs and returns. Two examples predict the best consequences of potential physical and legal management policies for alluvial and valley basin fill aquifers hydraulically linked to surface waters. Results show …

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Phylogeography And Population Genetic Structure Of The Dugongs In Thailand, Danielle R. Palmer Jan 2004

Phylogeography And Population Genetic Structure Of The Dugongs In Thailand, Danielle R. Palmer

Master's Theses

No abstract provided.

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Genetic Analysis Of Larval Dispersal Of Dungeness Crab, Cancer Magister, Valliammal Chockalingam Jan 2004

Genetic Analysis Of Larval Dispersal Of Dungeness Crab, Cancer Magister, Valliammal Chockalingam

Master's Theses

No abstract provided.

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Investigation Into Cryopreservation Of Guinea Pig Colon, Ryoko Hirakawa Jan 2004

Investigation Into Cryopreservation Of Guinea Pig Colon, Ryoko Hirakawa

Master's Theses

No abstract provided.

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Estrone-3-Sulfate Acts At A Postsynaptic Site On Rat Ca1 Pyramidal Cells, Kirsten T. Smith Jan 2004

Estrone-3-Sulfate Acts At A Postsynaptic Site On Rat Ca1 Pyramidal Cells, Kirsten T. Smith

Master's Theses

No abstract provided.

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A Non-Heme Bromoperoxidase From An Acorn Worm Slime-Associated Bacterium, Jasmine Kaur Jan 2004

A Non-Heme Bromoperoxidase From An Acorn Worm Slime-Associated Bacterium, Jasmine Kaur

Master's Theses

No abstract provided.

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Design And Analysis Of Gene Prediction Algorithms, Jimmy Y. Yu Jan 2004

Design And Analysis Of Gene Prediction Algorithms, Jimmy Y. Yu

Master's Theses

No abstract provided.

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Thymoquinone: The Evaluation Of Its Cytotoxic Potential, Effects On P53 Status And The Cell Cycle In Various Cancer Cell Lines, Alison Ann Mokashi Jan 2004

Thymoquinone: The Evaluation Of Its Cytotoxic Potential, Effects On P53 Status And The Cell Cycle In Various Cancer Cell Lines, Alison Ann Mokashi

University of Kentucky Master's Theses

Cancer is a group of diseases that are the second leading cause of human mortality in the United States. Discovering new therapies is vital to conquer cancer. Thymoquinone (TQ) is found in the plant Nigella sativa. TQ was found to be cytotoxic to the human ovarian cancer cell lines PA-1, CAOV-3 and SKOV-3, which have varying p53 status. PA-1 cells were the most sensitive, indicating that TQ was effective against cells having wild-type (WT) p53. Western blots indicated an increase in p53 in cell lines having WT p53. TQ when given concurrently with cisplatin resulted in antagonism for PA-1, A172 …

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Building Web-Based Interactive Keys To The Hymenopteran Families And Superfamilies, Katja Chantre Seltmann Jan 2004

Building Web-Based Interactive Keys To The Hymenopteran Families And Superfamilies, Katja Chantre Seltmann

University of Kentucky Master's Theses

Traditionally manufacturing job shops either have a process layout or a product layout. The advantages of one type of layout tend to be a disadvantage for the other. Hybrid cellular constructs represents a novel fusion of process and product layouts. In this thesis, hybrid cellular constructs specifically Hybrid Flow Shops and Reoriented andamp; Reshaped Cells are clearly described in terms of their structure, key features, and modes of operation. An engineering procedure is illustrated by cases and particular manufacturing circumstances where each concept would be most useful are identified. This thesis then defines the lean practices that are compatible with …

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Development Of A Human Visual System With The Ability To Detect Inconsistent Events, Jeremiah D. Brazeau Jan 2004

Development Of A Human Visual System With The Ability To Detect Inconsistent Events, Jeremiah D. Brazeau

Theses

Current research has shown that it is possible to create a general purpose learning system that models the first few layers of the human visual system. The goal of this thesis is to build upon that idea and produce a computational model capable of learning different aspects of visual information. Simulations show that the system is capable of learning and distinguishing different types of motion. Results also give one explanation, consistent with current experiments, explaining how the human visual system learns information and as such may produce the capability to predict behavior in future experiments.

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Internet Dwelling, Cyborgs, And The Matrix Of Modernity: An Empirical Inquiry With Critical-Hermeneutic Features, Andrew Felder Jan 2004

Internet Dwelling, Cyborgs, And The Matrix Of Modernity: An Empirical Inquiry With Critical-Hermeneutic Features, Andrew Felder

Electronic Theses and Dissertations

Amidst modernity's expanding electronic social matrix, this cultural-historical inquiry explores the technological construction of human being (e.g., cyborgs) and sociality in the America Online cyberscape. A two-tiered critical-hermeneutic method enables exploration of the broad rationalizing historical narrative and the localized play of virtual discursive practices impacting human meaning construction, selfhood, and social practice. A third and fourth tier of inquiry occasions integration of "psychological" meanings found in research participant experiential descriptions and interviews. This four-tier interplay reveals a bodily ethic enabling participants to modify subjectifying Internet practices toward meaningful social ends. Otherwise, eclipsed interpretive bodily powers contribute to "undecidability" about …

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Health, Human Rights And The Pharmaceutical Industry, Gerald Montgomery Jan 2004

Health, Human Rights And The Pharmaceutical Industry, Gerald Montgomery

Human Rights & Human Welfare

The pharmaceutical industry is a crucial touchstone in the discussion of corporate responsibility to promote human rights. This relationship is, however, problematic at best and, at worst work in opposition to each other. At the same time that drug producers are instrumental in promoting a basic level of human welfare, the outlook of major pharmaceutical corporations are mitigated by unfiltered lenses of profit. With hundreds of millions of dollars spent on research and development, patenting, and marketing, they understandably develop strategies for handling reoccurring costs. But should a morally responsible international community redirect these costs to the developing world or …

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Why Teach Environmental Ethics? Because We Already Do, Raymond Benton Jr. Jan 2004

Why Teach Environmental Ethics? Because We Already Do, Raymond Benton Jr.

School of Business: Faculty Publications and Other Works

In this paper we argue for the importance of the formal teaching of environmental ethics. This is, we argue, both because environmental ethics is needed to respond to the environmental issues generated by the neoliberal movement in politics and economics, and because a form of environmental ethics is implicit, but unexamined, in that which is currently taught. We maintain that students need to become aware of the latent ethical dimension in what they are taught. To help them, we think that they need to understand how models and metaphors structure and impact their worldviews. We describe how a simple in-class …

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Ninth Circuit Affirms Water Use Restriction To Protect Fish, Lance Young Jan 2004

Ninth Circuit Affirms Water Use Restriction To Protect Fish, Lance Young

Sea Grant Law Fellow Publications

No abstract provided.

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An Archaeology Of Pain, Dennis Michael Gruber Jan 2004

An Archaeology Of Pain, Dennis Michael Gruber

College of Graduate Studies: Theses & Dissertations (1964–2006)

Pain is a discursive construct of science and medicine. Through the discourses of biopower and technoscience pain is used to construct and maintain the social body. Biopower and technoscience are discursive practices that are enveloped within the disciplines of Western society. Specifically, the disciplines of education, science, and medicine use biopower and technoscience to normalize the body and construct binaries which create the abnormal. The cyborg is a discursive practice used to implode the binaries of the disciplines which maintain the social body. Through the implosion of binaries, the binary of mind/body is no longer plausible in the explanation of …

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Concentration Characteristics And Batting Performance In Collegiate Baseball And Softball, Daniel Samess Jan 2004

Concentration Characteristics And Batting Performance In Collegiate Baseball And Softball, Daniel Samess

College of Graduate Studies: Theses & Dissertations (1964–2006)

This study examined relationships between batting performance, trait anxiety, and concentration style. A predictive analysis was also formed to determine the combination of subscales that may best explain variance in batting performance. To accurately measure these variables, the Sport Competition Anxiety Test (SCAT; Martens, Vealey, & Burton, 1990) and the Batting-specific Test of Attentional and Interpersonal Style (B-TAIS; Albrecht & Feltz, 1987) were employed. Participants consisted of both male collegiate baseball and female collegiate sofitball players located in the southeastern section of the United States. Participants' 2003 batting statistics were utilized to assess batting performance, and participants must have compiled …

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Factors Influencing The Seawater Solubility Of Aerosol Associated Trace Metals, Angela Biscombe Jan 2004

Factors Influencing The Seawater Solubility Of Aerosol Associated Trace Metals, Angela Biscombe

School of Geography, Earth and Environmental Sciences Theses

Recent recognition of the importance of trace metals in oceanic biogeochemical cycling and of the significance o f atmospheric trace metals inputs to marine waters, highlights the need to assess the dissolved trace metals inputs from atmospheric sources. Atmospheric inputs are important to the surface waters of the Eastern Mediterranean, due to the reduction of riverine inputs. High-volume aerosol samples were collected from Haifa, Israel and Erdemli, Turkey in 1996. These samples were characterised by air mass back trajectories, because contrasting aerosol sources (urban and crustal) are apparent in this region. Trace metal (Cu, Pb and Zn) seawater solubility studies …

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Arsenic In The Pak Pa-Nang River Basin, Thailand, Saravuth Rattanachongkiat Jan 2004

Arsenic In The Pak Pa-Nang River Basin, Thailand, Saravuth Rattanachongkiat

School of Geography, Earth and Environmental Sciences Theses

The Pak Pa-Nang River Basin is located in southern Thailand. Its environmental degradation has been arising because its catchment is mineralized with substantial deposits of tin forming part of the SE Asian Tin Belt, with the presence of arsenopyrite gives rise to high arsenic concentrations, mobilized during past mining activity. Suitable techniques have been developed, for the extraction of arsenic species in a variety of environmental and biological samples. Trypsin and cellulase enzymatic extraction procedures were used to extract arsenic species from fish and plant samples, respectively. Arsenic species in sediments were determined following 1 M H3P04 extraction in an …

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New Strategies To Determine The Distribution Of Trace Elements In Soils And Sediments, Rebeca Santamaria-Fernandez Jan 2004

New Strategies To Determine The Distribution Of Trace Elements In Soils And Sediments, Rebeca Santamaria-Fernandez

School of Geography, Earth and Environmental Sciences Theses

Sequential chemical extraction to fractionate metals in soils and sediments into different groups reflecting their "leachability" has been widely employed to determine distribution of metals in different physico-chemical phases. A large number of sequential extraction schemes have been reported, most of them modifications of Tessier's extraction protocol. Although this method has been widely accepted, it is important to highlight that sequential extraction procedures are often tedious and time consuming and that they also suffer from a number of limitations, such as the problem of achieving selective dissolution and the re-adsorption of trace metals during extraction. The objective of this study …

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Amino Acids As Diagnostics Of Soil And Soil Water Quality, Jane Madge Bobart Hawkins Jan 2004

Amino Acids As Diagnostics Of Soil And Soil Water Quality, Jane Madge Bobart Hawkins

School of Geography, Earth and Environmental Sciences Theses

Information on the contribution of amino acids to dissolved organic nitrogen and carbon exported from grassland soil is scarce. Evidence from the literature for other environments, suggests that determination of amino acid patterns of distribution may be a useful method for improved understanding of the interaction of microbial synthesis and degradation of organic N in conjunction with soil physical states. A sample pre-concentration technique and an HPLC methodology were developed that enabled the determination of dissolved free (DFAA) and combined (DCAA) amino acids in natural waters at picomolar concentration. These methods were used to examine the content of amino acids …

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The Mobility And Speciation Of Antimony In Contaminated Soils And Waters, Martin James Nash Jan 2004

The Mobility And Speciation Of Antimony In Contaminated Soils And Waters, Martin James Nash

School of Geography, Earth and Environmental Sciences Theses

Total element concentrations, solid state partitioning and leaching characteristics of antimony are examined in surface soils at two contrasting field sites contaminated by former mining activities. These parameters are compared in each soil and related to selected soil properties and leachant solution pH to identify factors that influence the mobilisation of antimony in soils. Total element concentrations are determined in soils using an evaluated Mg(N03)2 ashing technique and highly elevated concentrations (up to 8202 mg kgˉ¹ antimony) are measured in soils formed on the surface of spoil heaps at these sites. A stream system bisects a spoil heap at one …

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The Development Of Diatom-Nutrient Palaeolimnological Inference Models For Uk Lowland Reservoirs, Amy Burgess Jan 2004

The Development Of Diatom-Nutrient Palaeolimnological Inference Models For Uk Lowland Reservoirs, Amy Burgess

School of Geography, Earth and Environmental Sciences Theses

Deterioration of UK lowland reservoir water quality through cultural eutrophication is of concern for both water supply and conservation. This study represents the first attempt to develop diatom-based palaeolimnological inference models for the assessment of eutrophication in UK lowland reservoirs. Models are developed from a 46-reservoir calibration set comprising surface sediment diatom assemblages and contemporary environmental data measured seasonally between May 1999 and October 2000. Following removal of outliers the dataset spans a total phosphorus (TP) gradient of 12-242 µgl ˉ¹ (mean = 63), a chlorophyll-α (Chla) gradient of 1.8-25.5 µgl ˉ¹ (mean = 63) and a conductivity (EC) gradient …

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Recovery Of The Mersey Estuary From Metal Contamination, Sarah Jane Watts Jan 2004

Recovery Of The Mersey Estuary From Metal Contamination, Sarah Jane Watts

School of Geography, Earth and Environmental Sciences Theses

The Mersey Estuary has received significant quantities of industrial wastes and sewage over several decades. Although contaminant loads are reducing and the estuary is showing signs of recovery, the sediment reservoir remains a repository of historical contamination and still contains high concentrations of trace metals and organic compounds. A combination of hydrodynamic, sedimentary and geochemical processes are responsible for maintaining trace metal concentrations at present-day levels. The distributions of trace metals in bed sediments reflect changes in granulometry, differences in POC content and the magnitude of past inputs rather than the locations of point sources in the estuary. The association …

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The Interference Free Determination Of Selenium In Environmental And Clinical Samples By Icp-Ms, Justine Clare Turner Jan 2004

The Interference Free Determination Of Selenium In Environmental And Clinical Samples By Icp-Ms, Justine Clare Turner

School of Geography, Earth and Environmental Sciences Theses

The determination of selenium in environmental and clinical samples by ICP-MS is complicated by both poor sensitivity and severe interferences resulting from both the sample matrix and the argon plasma. The purpose of this study was to investigate ways of overcoming these problems thus enabling Se to be determined both accurately and precisely. A novel procedure for the accurate determination of selenium in serum using electrothermal vaporisation inductively coupled plasma mass spectrometry (ETV-ICP-MS) has been developed. A simple 1:20 dilution of the serum with 1% nitric acid negates the need for a lengthy sample digestion procedure. Several of the interferences …

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