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2009

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Articles 11911 - 11940 of 16973

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Circuit Dynamics Of Adult Visual Cortex, Homare Yamahachi Jan 2009

Circuit Dynamics Of Adult Visual Cortex, Homare Yamahachi

Student Theses and Dissertations

Learning and other forms of plasticity result from changes in transmission at existing synapses or the construction or elimination of synapses. Synapses occur at the juxtaposition of boutons, with their postsynaptic partners, dendrites and cell bodies. It has been assumed that connections in the primary visual cortex (V1) become static after the critical period. Recent studies show, however, that dendritic spines appear and disappear during adulthood in the normal brain. Our first objective was then to determine whether axonal branches and boutons also undergo morphological changes. To do so, we performed longitudinal studies of virally labeled neurons and their processes. …

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Structural Studies Of Three Factors That Affect The Prokaryotic Transcription Cycle; Microcin J25, Lambda Q And T4 Gp33, Kelly-Anne Fisi Twist Jan 2009

Structural Studies Of Three Factors That Affect The Prokaryotic Transcription Cycle; Microcin J25, Lambda Q And T4 Gp33, Kelly-Anne Fisi Twist

Student Theses and Dissertations

This thesis examines three factors that affect the prokaryotic transcription cycle; Microcin J25, a peptidyl inhibitor of RNAP; Q antiterminator protein, a bacteriophage protein that modifies RNAP to readthrough termination signals in phage late genes; and Gp33, a T4 phage protein that is a co-activator of T4 phage late gene transcription. We determined that the Microcin J25 peptide (MccJ25) has a lassoed-tail structure using mass spectrometry and NMR. The 21 amino acid MccJ25 peptide is produced from a 58 amino acid pro-peptide, McjA, that is truncated and post-translationally modified by two maturase enzymes. We synthesized McjA and constructed a protein-A …

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Of Mice And Men: Studying Innate And Adaptive Immunity Against The Epstein-Barr Virus, Till Strowig Jan 2009

Of Mice And Men: Studying Innate And Adaptive Immunity Against The Epstein-Barr Virus, Till Strowig

Student Theses and Dissertations

The Epstein-Barr virus (EBV) is a lymphotropic γ-herpes virus infecting over 90% of the human adult population. A striking feature that the virus shares with other γ-herpes viruses is its oncogenic potential. This transforming property can be observed as B cell transformation in vitro and lymphomas as well as epithelial cancers in vivo, but most immunocompetent individuals control EBV infection successfully without the occurrence of disease. Cells of the innate immune system act in synergy to provide a first line of defense against pathogens. Here we describe that dendritic cells (DCs), matured with viral products or mimics thereof, activated natural …

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Dissecting The Functions Of Classical Cadherins In Skin, Christopher Tinkle Jan 2009

Dissecting The Functions Of Classical Cadherins In Skin, Christopher Tinkle

Student Theses and Dissertations

The spectacular cellular rearrangements of keratinocytes as epidermal appendages form and the epidermis turns over rely on the rapid and precise modulation of intercellular adhesion. While genetic studies in vertebrates have revealed a pivotal role for classical cadherin-mediated cell adhesion in the regulation of coordinated cell movements in the embryo, little is know about the contribution of classical cadherins to epidermal morphogenesis. Genetic dissection of cadherin function in skin is complicated by overlapping expression of E- and P-cadherin and the fact that their genes are tightly linked, precluding conventional conditional knockout strategies. I have combined conditional gene ablation, in vitro …

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The Effects Of Dietary Conjugated Linoleic Acid (Cla) On Fatty Acid Composition And Key Enzymes Of Fatty Acid Oxidation In Liver And Muscle Of Geese, Xuhui Zhang, Baowei Wang, Fangyu Long, Lei Wang, Zhigang Yang Jan 2009

The Effects Of Dietary Conjugated Linoleic Acid (Cla) On Fatty Acid Composition And Key Enzymes Of Fatty Acid Oxidation In Liver And Muscle Of Geese, Xuhui Zhang, Baowei Wang, Fangyu Long, Lei Wang, Zhigang Yang

Turkish Journal of Veterinary & Animal Sciences

The objective of this study was to determine the influence of conjugated linoleic acid (CLA) on fatty acid composition and key enzymes of fatty acid oxidation in liver and muscle of geese. A total of 192 1-day-old geese were randomly assigned to 1 of 4 dietary groups, and were fed for 56 days on diets containing 2.5% soybean oil (group A, control group) or 2.0% soybean oil with 0.5% CLA (group B), 1.0% soybean oil with 1.5% CLA (group C), and 2.5 % CLA (group D). Geese fed CLA had a decreased abdominal fat percentage (AFP) (P < 0.01) compared with the control. It was observed that dietary CLA levels had a significant effect on the body weight, weight gain, feed conversion rate (FCR) (P < 0.05), and feed intake (P < 0.01). Fatty acid composition showed a significant increase of the biologically active cis-9, trans-11 and trans-10, and cis-12 CLA isomers in both liver and muscle of geese fed CLA (P < 0.01). Dietary CLA led to an increase (P < 0.01) in saturated fatty acid (SFA) and a reduction in monounsaturated fatty acid (MUFA) (P < 0.05) concentrations in both liver and muscle. In liver, dietary CLA increased (P < 0.05) acyl CoA oxidase (ACO) activity, but did not affect carnitine palmitoyltransferase-I (CPT-I) activity compared with the control. CPT-I activity was significantly increased by 2.5% dietary CLA in muscle, where ACO activity was decreased at 1.5% CLA level. The results obtained suggested that geese can successfully incorporate CLA in both liver and muscle, which could be beneficial in the human diet, through provision of bioactive fatty acids with no detrimental effects on n-3 PUFA levels.

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Ordination Training For Bi-Vocational Clergy In The United Cornerstone Churches International, Inc. Of Thomasville, North Carolina, George Bernard Jackson Jan 2009

Ordination Training For Bi-Vocational Clergy In The United Cornerstone Churches International, Inc. Of Thomasville, North Carolina, George Bernard Jackson

Doctor of Ministry Projects

In many rural communities there exists a stereotype about clergy education perpetuated since slavery. This project offered bi-vocational clergy opportunities to be equipped, empowered and certified for servant leadership. Data captured from 2006 through 2008 was taken from the 25 ordinands. Questions that guided this study were grouped into two sets: examination by quantitative measurements through the passing of a catechism; and by qualitative measurements from personal and telephone interviews. The results of the research revealed a discrepancy in the ordination process where prerequisites and retention studies must play a greater role for future ordinands.

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Arkansas Softball Media Guide, 2009, University Of Arkansas, Fayetteville. Athletics Media Relations, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Communications Office, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Sports Information Office Jan 2009

Arkansas Softball Media Guide, 2009, University Of Arkansas, Fayetteville. Athletics Media Relations, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Communications Office, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Sports Information Office

Arkansas Softball

No abstract provided.

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The Neglect Of The Umbilical Cord: Ohio's Failure To Adequately Promote Banking Of Umbilical Cord Blood Stem Cells And The Need For New Legislation, Shannon Folger Jan 2009

The Neglect Of The Umbilical Cord: Ohio's Failure To Adequately Promote Banking Of Umbilical Cord Blood Stem Cells And The Need For New Legislation, Shannon Folger

Journal of Law and Health

Because current legislation, including OH H.B. 237, is insufficient in that it does not have the potential to significantly increase the number of cord blood donations, it will be necessary to enact legislation that is more demanding. Such legislation should be modeled after current "required request" organ donation laws, which mandate that health professionals actively pursue organ donations by expressly asking the family to consent to donation. Modeled after these laws, better legislation will not only require that state health departments generate information about donation opportunities, but also that health professionals then provide each maternity patient with materials about cord …

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Shifting And Seizing: A Call To Reform Ohio's Outdated Restrictions On Drivers With Epilepsy, Kathryn Kramer Jan 2009

Shifting And Seizing: A Call To Reform Ohio's Outdated Restrictions On Drivers With Epilepsy, Kathryn Kramer

Journal of Law and Health

Presented herein is an analysis of the equity of epilepsy-related driving restrictions and the role that the state of Ohio may assume in the restructuring of such laws. Part two of this paper discusses the medical aspects of seizures and epilepsy, including basic etiology, treatments, and prognoses. Part three of this paper examines the different types of disabilities and the stigma that impacts individuals with epilepsy. Part four reviews the history of licensing and the Ohio Revised Code provisions that govern driving, licensing, and restrictions imposed upon individuals who have experienced seizures. Part five examines the Ohio case law that …

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A Tail Of Hope: Canada's North Atlantic Straddling And Highly Migratory Fish Stocks, And The Prince Of Darkness, George T. Williamson Jan 2009

A Tail Of Hope: Canada's North Atlantic Straddling And Highly Migratory Fish Stocks, And The Prince Of Darkness, George T. Williamson

University of Miami Inter-American Law Review

No abstract provided.

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Layers Of Vulnerability In Occupational Health And Saftey For Migrant Workers: Case Studies From Canada And The United Kingdom, Malcolm Sargeant, Eric Tucker Jan 2009

Layers Of Vulnerability In Occupational Health And Saftey For Migrant Workers: Case Studies From Canada And The United Kingdom, Malcolm Sargeant, Eric Tucker

Comparative Research in Law & Political Economy

In many high-income countries, like Canada and the United Kingdom, there has recently been a significant increase in the number of migrant workers entering and participating in their labour markets. This article is concerned with the implications of this phenomenon for protective labour laws and, in particular, for occupational health and safety regulation. We identify a framework for assessing the OHS vulnerabilities of migrant workers, using a layered approach which assists in identifying the risk factors. Using this layer of vulnerability framework, we compare the situation of at-risk migrant workers in Canada and the United Kingdom.

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Synthesis And Characterisation Of Maltosides And Lactosides Based On Alcohol Mixtures Obtained From Palm Oil And Palm Kernel Oil / Nurul Fadhilah Binti Kamalul Aripin, Nurul Fadhilah Kamalul Aripin Jan 2009

Synthesis And Characterisation Of Maltosides And Lactosides Based On Alcohol Mixtures Obtained From Palm Oil And Palm Kernel Oil / Nurul Fadhilah Binti Kamalul Aripin, Nurul Fadhilah Kamalul Aripin

Student Works (2000-2009)

The headgroup of these glycolipids, which consist of a dissacharide i.e. maltose and lactose, provide good hydrophilicity. These glycolipids are comparable to alkyl polyglucosides (APGs), a common non-ionic surfactant used for detergents, particularly in the cosmeceutical industry. APGs are limited to high lipophilicity due to their low degree of polymerisation (~1.5) and their chemical diverse compositions make them unsuitable for bio-related applications. Technical grade glycolipids based on alcohol mixtures from reduced palm oil and palm kernel oil were investigated to explore their application as surfactants. The technical grade glycolipids were synthesized using a method that produces “clean” anomeric mixtures with …

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Assessment Of Molecular Markers Associated With Resistance Or Susceptibility To Fusarium Wilt Tr4 In Musa Acuminata Ssp. Malaccensis / Fatimah Binti Kayat, Fatimah Kayat Jan 2009

Assessment Of Molecular Markers Associated With Resistance Or Susceptibility To Fusarium Wilt Tr4 In Musa Acuminata Ssp. Malaccensis / Fatimah Binti Kayat, Fatimah Kayat

Student Works (2000-2009)

Bananaandplantain(Musaspp.)arestaplefoodcropsintropicaland subtropicalcountriesandalsoplayakeyroleintheeconomicofmanydeveloping countries.However,thetenyearreview(1996-2005)oftheproductionofthecrop showedthatthelandusageforbananaandplantainhadincreasedbuttheyieldhadbeen reducedduringthesameperiod.InMalaysia,PanamadiseaseorFusariumwiltcaused byFusariumoxysporumf.sp.cubenseVCG01213/16alsoknownasTropicalrace4 (TR4)isthemajorandthemostdestructivediseasewhichcausesconsiderablelossto theMalaysianbananaexporttrade.Conventionalbananabreedingforresistanceto Fusariumwiltishamperedbysterility,triploidy,longgenerationtimeandthelackof appropriatetestingsites.Biotechnologicaladvancesinvolvinginvitropropagation, somaticembryogenesisandmolecularmarkersprovidetoolsforgeneticrelationship studiesandQTLanalysisthuscouldenhancethedevelopmentofcultivarsadaptedto changingenvironments. Theuseofgenesfromthewildcroprelativeshavebeenrecognizedinbreeding programsofmanycrops.Inthisstudy,thestrategyapproachistodevelopnew populationswithtraitsspecifictothepathogenfromtheindigenouswildbananaMusa acuminatassp.malaccensis(AA)whichhasbeenshowntohaveveryhighresistanceto FOCTR4.Maturedseedswereextractedfromfruitbunchesoffourrandomopencross populationsofwildbananainordertoproduceseedprogeniesraisedthroughzygotic embryoculture.Embryogerminationwasachievedwithoutanyseedtreatmentinthe darkfortwoweeksbeforebeingplacedunderlight.Individualseedprogenieswere subjectedtoseveralin-vitrostagesinordertogainuniformplantletswithreplicatesfor diseasescreening.DifferentdegreesofresponsetoFusariumoxysporumf.sp.cubense TR4wereobservedinwildbananaseedprogeniesaswellastheirF1hybridpopulations whichprovidedapotentiallyusefulgeneticresourceforthedevelopmentofdisease resistancemarkersthatcouldbeexploitedinamarker-assistedselection. AhighdegreeofpolymorphisminwildbananaseedprogeniesshownbyRAPD m arkersprovidedgoodearlyevidenceforthepotentialusefulnessofpolymorphismandse gregationstudiesusingmolecularmarkers.AnalysisofRAPD,STMSandAFLPm arkersinthisstudydidnotshowanycleardifferentiationbetweenresistantandsus ceptibleindividuals.However,markersgeneratedbythosemethodswereincludedinl inkagemapdevelopment.Atotalof18markershadbeengeneratedfromRAPDa nalysiswhile14SSRmarkerswereobservedfromSTMSanalysis.Atotalof4657ba ndswasgeneratedfrom30EcoR1+3xMseI+3,oneEcoR1+3xMseI+2and43P stI+2xMseI+3primercombinations.The639markersconsistingof607AFLPs,14S SRsand17RAPDsmarkersweredeterminedontwomappingpopulations(resistancea ndsusceptibilitytoFOCTR4).Atotalof471markers(286Pst-markers,155Eco-m arkers,17RAPDmarkersand13STMSmarkers)wereanalyzedforthesusceptiblem appingpopulationwhile414markers(249Pst-markers,143Eco-markers,9RAPDm arkersand13STMSmarkers)wereanalyzedfortheresistantmappingpopulation.L inkageanalysisofthedataresultedinthegenerationoftwosetsoflinkagemapsc onsistingof32linkagegroupsfortheresistantmappingpopulationand37linkageg roupsforthesusceptiblemappingpopulation.Themapshaveprovidedthebasisoff uturemappingandmarker-assistedbreedingstudiesandstrategiesforthisbanana.

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Genetic Transformation Of Chlorella Vulgaris (Chlorophyta) / Priscilla Dorothy Rajakumar., Priscilla Dorothy Rajakumar Jan 2009

Genetic Transformation Of Chlorella Vulgaris (Chlorophyta) / Priscilla Dorothy Rajakumar., Priscilla Dorothy Rajakumar

Student Works (2000-2009)

No abstract provided.

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2009 Commencement Program, Morehead State University. Registrar's Office. Jan 2009

2009 Commencement Program, Morehead State University. Registrar's Office.

Morehead State Commencement Programs

2009 commencement programs of Morehead State University.

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Punishing Pharmaceutical Companies For Unlawful Promotion Of Approved Drugs: Why The False Claims Act Is The Wrong Rx, Vicki W. Girard Jan 2009

Punishing Pharmaceutical Companies For Unlawful Promotion Of Approved Drugs: Why The False Claims Act Is The Wrong Rx, Vicki W. Girard

Journal of Health Care Law and Policy

No abstract provided.

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Resisting Curriculum Integration: Do Good Fences Make Good Neighbors?, Ken Badley Jan 2009

Resisting Curriculum Integration: Do Good Fences Make Good Neighbors?, Ken Badley

Faculty Publications - College of Education

Curriculum integration has a long history. In this paper I catalog several arguments for resistance against integration and present the historical roots of support for those arguments offered by critics of curriculum integration. First, I review some linguistic and usage limitations of the term. Second, I examine several practical and institutional difficulties related to implementing integrated curriculum. Third, I explore some interconnected psychological and sociological dimensions of resistance to curriculum integration. Finally, I consider several epistemological dimensions of resistance to integration, some of which underlie the sociological and psychological aspects. While recognizing that some resistance to integration will never be …

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Laboratory Schools Annual Report, 2008-2009, Laboratory Schools, Illinois State University Jan 2009

Laboratory Schools Annual Report, 2008-2009, Laboratory Schools, Illinois State University

Annual Reports – Laboratory Schools

Illinois State University Laboratory Schools annual report

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Erk Activation Requires Cam Kinases In Mcf-7 Breast Cancer Cells, John M. Schmitt, Ellen Abell Jan 2009

Erk Activation Requires Cam Kinases In Mcf-7 Breast Cancer Cells, John M. Schmitt, Ellen Abell

Faculty Publications - Department of Biological & Molecular Science

Abstract A key signaling pathway involved in regulating cell growth and proliferation throughout the body is the ERK signaling pathway. ERK is activated via numerous pathways including intracellular calcium release downstream of G-Protein Coupled Receptors (GPCRs). Carbachol, a GPCR-agonist, both increases intracellular calcium and ERK activation in MCF-7 cells. ERK activation and control of cell growth may act through the transcription factor Elk-1. Our goal was to elucidate the specific proteins and kinases upstream of ERK in MCF-7 cells treated with carbachol. Secondly, we wanted to investigate the potential involvement of Elk-1 downstream of ERK. Carbachol treatment of MCF-7 cells …

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Cam Kinase Kinase Control Of Prostate Cancer Cell Survival, John M. Schmitt, Brendon Hart Jan 2009

Cam Kinase Kinase Control Of Prostate Cancer Cell Survival, John M. Schmitt, Brendon Hart

Faculty Publications - Department of Biological & Molecular Science

Abstract AKT has been implicated in promoting cell survival within certain cells. Current research has shown that hormones that increase the concentration of intracellular calcium can activate AKT that in turn leads to cancer cell survival. Interestingly, LNCaP cells express the M3-subtype of GPCR's that may couple to increases in intracellular calcium and activation of the Ca2+/Calmodulin-dependent Protein Kinases (CaM Ks). Specifically CaM Kinase Kinase (CaM KK) phosphorylates its direct substrates CaM Kinase I, CaM Kinase IV, and AKT. AKT promotes cell survival through phosphorylation of its target BAD that prevents caspase activation. Our goals were to examine the mechanism …

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Primary Culture Of Isolated Cardiac Myocytes From The Bullfrog, Rana Catesbeiana, Jeff Duerr, Silvianne Luft Jan 2009

Primary Culture Of Isolated Cardiac Myocytes From The Bullfrog, Rana Catesbeiana, Jeff Duerr, Silvianne Luft

Faculty Publications - Department of Biological & Molecular Science

Comparative vertebrate studies into physiological responses to adverse conditions can yield great insight into the design of robust systems and provide fundamental knowledge of stress adaptations. The classically studied cellular stress response is the mitogen-activated protein kinase (MAPK) pathway. Prior investigations in our laboratory indicated a differential response of MAPK family activation to progressive dehydration in cardiac tissue from two species of anuran amphibians: Rana catesbeiana and Bufo marinus. Western blot analysis indicated that pERK increased by three-fold in Bufo and 2-fold in Rana. pJNK levels remained unchanged in Bufo whereas in Rana increased by 50%. pp38 did not exhibit …

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The Effects Of An Integrated Behavioral Health Initiative On The Behavior Of Providers In An Ob/Gyn Primary Care Clinic, Dean Moritz Jan 2009

The Effects Of An Integrated Behavioral Health Initiative On The Behavior Of Providers In An Ob/Gyn Primary Care Clinic, Dean Moritz

Walden Dissertations and Doctoral Studies

The separation between behavioral services and traditional medicine is increasingly being seen as counterproductive on personal and societal levels. Despite this, there has been little research examining how integrated models blending mental and physical health services could be implemented. The literature revealed that behavioral interventions have been incorporated into traditional medical treatments, but this often has been piecemeal in nature and has yielded equivocal results. This study examined the assertion that effective integration between behavioral and medical services will increase the standard of care for the patient. Integration in this study was accomplished by colocating a psychologist on the primary …

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The Relationship Between Religious And Spiritual Factors And The Perpetration Of Intimate Personal Violence, Robbin G. Todhunter Jan 2009

The Relationship Between Religious And Spiritual Factors And The Perpetration Of Intimate Personal Violence, Robbin G. Todhunter

Walden Dissertations and Doctoral Studies

Intimate partner violence (IPV) is a multifaceted social issue that affects the Christian faith community as it does the secular community. Though the literature reflects some understanding of general correlates and possible antecedents to IPV within the Christian community, the impact of religious and spiritual factors tends to be homogenized and is often misjudged. Allport's theory of intrinsic and extrinsic religious orientation provided a platform for investigating Christian male-perpetrated IPV. This quantitative study utilized survey design and measured the impact of 10 select religious and spiritual factors on the probability of physical or sexual IPV perpetration. Archival data from Wave …

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The Effects Of Art Education On Self -Efficacy In Middle School Students, Ellen P. Mitchell Jan 2009

The Effects Of Art Education On Self -Efficacy In Middle School Students, Ellen P. Mitchell

Walden Dissertations and Doctoral Studies

Researchers have theorized that student achievement and its contingent effects on self-efficacy are important factors in art education. There is, however, a paucity of research addressing this relationship, which in turn affects students' and educators' levels of success. Accordingly, this study was an investigation of the relationship between art education and self-efficacy in middle school students and tested the constructivist theory, as embodied in Bandera's theories on the foundations of self-efficacy beliefs. This pretest-posttest control-group true experimental design tested the relationship between the independent variable, art education and the dependent variable, self-efficacy in middle school students. The instrument, Patterns of …

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Perceptions Of Leadership Effectiveness In The Management Of Intergenerational Work-Values Conflict: An Antecedent Of Organizational Citizenship Behavior Of Perioperative Registered Nurses, Patricia G. Wright Jan 2009

Perceptions Of Leadership Effectiveness In The Management Of Intergenerational Work-Values Conflict: An Antecedent Of Organizational Citizenship Behavior Of Perioperative Registered Nurses, Patricia G. Wright

Walden Dissertations and Doctoral Studies

Studies reveal a progressive net decrease in the nursing profession across four generations, creating a shortage that poses a critical threat to the health care delivery system and to the health and safety of patients within that system. Research also suggests that generational cohorts reflect social change in attitudes toward work-life balance, organizational commitment, personal-professional relationships, autonomy, focus on career advancement, and actions that represent organizational citizenship behavior (OCB). Previous research grounded in theoretical frameworks of organizational behavior, leadership, and social capital indicates that leadership support of workforce diversity and effectiveness in conflict management influence OCB. However, little research explores …

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Influence Of Peer Victimization And Social Support On Cortisol Production, Jennifer M. Knack Jan 2009

Influence Of Peer Victimization And Social Support On Cortisol Production, Jennifer M. Knack

Psychology Dissertations - Archive

The current dissertation sought to examine whether there was an association between peer victimization, neuroendocrine functioning, and physical health outcomes. Adolescents and their parent (N = 107) participated in a two-part study. In the first phase, adolescents completed a series of questionnaires either at school or online to assess levels of peer victimization, social support, and health outcomes. They then came into the laboratory with a parent for the second part of the study which consisted of two sessions. In session one, adolescents completed additional questionnaires and learned how to collect saliva samples (to assess cortisol levels); parents completed measures …

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Design And Analysis Of High-Performance And Recoverable Data Storages, Weijun Xiao Jan 2009

Design And Analysis Of High-Performance And Recoverable Data Storages, Weijun Xiao

Open Access Dissertations

With explosive growth of networked information services and e-commerce, data protection and recovery have become the top priority of business organizations and government institutions. In order to make data recoverable and provide high-performance storage service, we have conducted intensive research on networked storage systems. This dissertation addresses the issues related to high recoverable and high-performance storage systems. First, this thesis presents an implementation and performance evaluation of two snapshot technologies: copy-on-write and redirect-on-write snapshots. Our experimental results uncovered many interesting observations regarding the performance characteristics of the two snapshot techniques. Depending on the applications and different I/O workloads, the two …

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Factors Influencing The Success Of Community-Based Marine Protected Areas In North Sulawesi Indonesia, Brian R. Crawford Jan 2009

Factors Influencing The Success Of Community-Based Marine Protected Areas In North Sulawesi Indonesia, Brian R. Crawford

Open Access Dissertations

The purpose of this research was to examine factors that influence the success of community based marine protected areas in North Sulawesi Indonesia. The research took place in North Sulawesi Province of Indonesia. A multi-methods approach was used including administration of a survey questionnaire to a random sample of household respondents, use of secondary data, key informant interviews and direct observations within the field sites. Results demonstrate that community-based management interventions and community responses are complex and varied. Progress in establishing community-based marine protected areas was related to community context and the amount and type of project interventions provided. The …

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Element Stoichiometry Of Ochromonas Danica As A Function Of Growth Rate And Temperature, Savannah Simonds Jan 2009

Element Stoichiometry Of Ochromonas Danica As A Function Of Growth Rate And Temperature, Savannah Simonds

Biology Theses - Archive

The microbial loop stresses the importance of flagellated protozoa as predators of bacteria and regenerators of nutrients, the outcome of which affects higher trophic levels. The element stoichiometry of flagellates has only been examined while feeding upon bacteria or phytoplankton. In this study, the element stoichiometry of the protozoan flagellate, Ochromonas danica, was determined while growing osmotrophically thus eliminating the potential errors due to element contributions of prey in food vacuoles. The element and nucleic acid content of the flagellate were examined under a range of environmentally relevant temperatures and growth rates using chemostat cultures. Growth rate was the driving …

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Diversity And Community Organization In The Periphyton Of Recirculating Streams Channels Are Defined By Current Velocity And Nutrient Supply, Chad A. Larson Jan 2009

Diversity And Community Organization In The Periphyton Of Recirculating Streams Channels Are Defined By Current Velocity And Nutrient Supply, Chad A. Larson

Biology Dissertations - Archive

In a series of experiments taking place in recirculating artificial stream channels, periphyton communities growing on ceramic tiles were subjected to variations in current velocity and nutrient supply. The first experiment used stream water and manipulated current velocity, subjecting periphyton communities to either high or low current velocities (30 and 10 cm * sec-1 respectively), while in experiments 2-4, modified WC media was used and periphyton communities subjected to different nutrient (low and high) and current regimes (low, high, and variable flow). Each experimental run lasted 35 days. In all experiments, greater species richness of periphyton communities was observed in …

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