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2014

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Articles 21541 - 21570 of 25853

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The Genetics And Physiology Of Abiotic Stress Disorder In Swede (Brassica Napus Var. Napobrassica), Faiz Fadhel Jan 2014

The Genetics And Physiology Of Abiotic Stress Disorder In Swede (Brassica Napus Var. Napobrassica), Faiz Fadhel

School of Biological and Marine Sciences Theses

Swedes are extremely common as a root vegetable in Europe, USA, and Canada but are affected by the occasional presence of Brown Heart (BH) disorder affecting the marketable swede root. The incidence of BH has been reported worldwide however it is very difficult to breed resistance due to its sporadic occurrence with no external symptoms to select for. BH has been attributed to boron availability but attempts to link BH appearance definitively with boron deficiency have been difficult. Anecdotal evidence from breeders and growers highlighted the recent co-appearance of BH and frost injury in the field and it was postulated …

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Implementation Of Fourier Transform Infrared Spectroscopy For The Rapid Typing Of Uropathogenic Escherichia Coli., S. E. Dawson, T. Gibreel, N. Nicolaou, H. Alrabiah, Y. Xu, R. Goodacre, M. Upton Jan 2014

Implementation Of Fourier Transform Infrared Spectroscopy For The Rapid Typing Of Uropathogenic Escherichia Coli., S. E. Dawson, T. Gibreel, N. Nicolaou, H. Alrabiah, Y. Xu, R. Goodacre, M. Upton

School of Biomedical Sciences

In this paper, we demonstrate that Fourier transform infrared (FT-IR) spectroscopy is able to discriminate rapidly between uropathogenic Escherichia coli (UPEC) of key lineages with only relatively simple sample preparation. A total of 95 bacteria from six different epidemiologically important multilocus sequence types (ST10, ST69, ST95, ST73, ST127 and ST131) were used in this project and principal component-discriminant function analysis (PC-DFA) of these samples produced clear separate clustering of isolates, based on the ST. Analysis of data using partial least squares-discriminant analysis (PLS-DA), incorporating cross-validation, indicated a high prediction accuracy of 91.19% for ST131. These results suggest that FT-IR spectroscopy …

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The Implications Of Co-Locating Marine Protected Areas Around Offshore Wind Farms, Matthew Ashley Jan 2014

The Implications Of Co-Locating Marine Protected Areas Around Offshore Wind Farms, Matthew Ashley

School of Biological and Marine Sciences Theses

Offshore wind farm (OWF) construction in the UK is progressing rapidly alongside increasing spatial pressures on marine ecosystems and social and economic activities. A need for increased protection of habitats, species and ecological processes that support environmental and economic benefits is being met by designation of marine protected areas (MPAs). Mitigation and spatial planning solutions are required to enable protection of vital ecological habitats, features and processes and support sustainable economic development. A potential solution is to co-locate OWFs and MPAs. This study uses a multi-disciplinary approach to examine if evidence on the environmental effects of existing OWFs and associated …

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Monitoring Changes In Circulating Tumour Cells As A Prognostic Indicator Of Overall Survival And Treatment Response In Patients With Metastatic Melanoma, Dragana Klinac, Elin S. Gray, James B. Freeman, Anna Reid, Samantha Bowyer, Michael Millward, Mel Ziman Jan 2014

Monitoring Changes In Circulating Tumour Cells As A Prognostic Indicator Of Overall Survival And Treatment Response In Patients With Metastatic Melanoma, Dragana Klinac, Elin S. Gray, James B. Freeman, Anna Reid, Samantha Bowyer, Michael Millward, Mel Ziman

Research outputs 2014 to 2021

Background: New effective treatments for metastatic melanoma greatly improve survival in a proportion of patients. However biomarkers to identify patients that are more likely to benefit from a particular treatment are needed. We previously reported on a multimarker approach for the detection of heterogenous melanoma circulating tumour cells (CTCs). Here we evaluated the prognostic value of this multimarker quantification of CTCs and investigated whether changes in CTC levels during therapy can be used as a biomarker of treatment response and survival outcomes.Methods: CTCs were captured by targeting the melanoma associated markers MCSP and MCAM as well as the melanoma stem …

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Reducing Depression During The Menopausal Transition: Study Protocol For A Randomised Controlled Trial, Osvaldo P. Almeida, Kylie Marsh, Leon Flicker, Martha Hickey, Andrew Ford, Moira Sim Jan 2014

Reducing Depression During The Menopausal Transition: Study Protocol For A Randomised Controlled Trial, Osvaldo P. Almeida, Kylie Marsh, Leon Flicker, Martha Hickey, Andrew Ford, Moira Sim

Research outputs 2014 to 2021

Background: The menopausal transition (MT) is a biological inevitability for all ageing women that can be associated with changes in mood, including depressive symptoms. There is tentative evidence that women who develop depression during the MT have greater risk of subsequent depressive episodes, as well as increased health morbidity and mortality. Thus, preventing depression during the MT could enhance both current and the future health and well-being of women. This study aims to test the efficacy of a client-centred health promotion intervention to decrease the 12-month incidence of clinically significant symptoms of depression among women undergoing the MT.Methods/Design: This randomised …

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Hypoxia Alters Expression Of Zebrafish Microtubule-Associated Protein Tau (Mapta, Maptb) Gene Transcripts, Seyyed H. Moussavi Nik, Morgan Newman, Swamynathan Ganesan, Mengqi Chen, Ralph Martins, Giuseppe Verdile, Michael Lardelli Jan 2014

Hypoxia Alters Expression Of Zebrafish Microtubule-Associated Protein Tau (Mapta, Maptb) Gene Transcripts, Seyyed H. Moussavi Nik, Morgan Newman, Swamynathan Ganesan, Mengqi Chen, Ralph Martins, Giuseppe Verdile, Michael Lardelli

Research outputs 2014 to 2021

Background: Microtubule-associated protein tau (MAPT) is abundant in neurons and functions in assembly and stabilization of microtubules to maintain cytoskeletal structure. Human MAPT transcripts undergo alternative splicing to produce 3R and 4R isoforms normally present at approximately equal levels in the adult brain. Imbalance of the 3R-4R isoform ratio can affect microtubule binding and assembly and may promote tau hyperphosphorylation and neurofibrillary tangle formation as seen in neurodegenerative diseases such as frontotemporal dementia (FTD) and Alzheimer's disease (AD). Conditions involving hypoxia such as cerebral ischemia and stroke can promote similar tau pathology but whether hypoxic conditions cause changes in MAPT …

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Effect Of Bdnf Val66met On Memory Decline And Hippocampal Atrophy In Prodromal Alzheimer's Disease: A Preliminary Study, Yen Y. Lim, Victor L. Villemagne, Simon M. Laws, David Ames, Robert H. Pietrzak, Kathryn A. Ellis, Karra Harrington, Pierrick Bourgeat, Ashley I. Bush, Ralph N. Martins, Colin L. Masters, Christopher C. Rowe, Paul Maruff Jan 2014

Effect Of Bdnf Val66met On Memory Decline And Hippocampal Atrophy In Prodromal Alzheimer's Disease: A Preliminary Study, Yen Y. Lim, Victor L. Villemagne, Simon M. Laws, David Ames, Robert H. Pietrzak, Kathryn A. Ellis, Karra Harrington, Pierrick Bourgeat, Ashley I. Bush, Ralph N. Martins, Colin L. Masters, Christopher C. Rowe, Paul Maruff

Research outputs 2014 to 2021

Objective: Cross-sectional genetic association studies have reported equivocal results on the relationship between the brain-derived neurotrophic factor (BDNF) Val66Met and risk of Alzheimer's disease (AD). As AD is a neurodegenerative disease, genetic influences may become clearer from prospective study. We aimed to determine whether BDNF Val66Met polymorphism influences changes in memory performance, hippocampal volume, and Aβ accumulation in adults with amnestic mild cognitive impairment (aMCI) and high Aβ. Methods: Thirty-four adults with aMCI were recruited from the Australian, Imaging, Biomarkers and Lifestyle (AIBL) Study. Participants underwent PiB-PET and structural MRI neuroimaging, neuropsychological assessments and BDNF genotyping at baseline, 18 month, …

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Changes In Muscle Damage Markers In Female Basketball Players, Alexandre Moreira, Ken Nosaka, Joao Antonio Nunes, Luis Viveiros, Athanasios Z. Jamurtas, Marcelo Saldanha Aoki Jan 2014

Changes In Muscle Damage Markers In Female Basketball Players, Alexandre Moreira, Ken Nosaka, Joao Antonio Nunes, Luis Viveiros, Athanasios Z. Jamurtas, Marcelo Saldanha Aoki

Research outputs 2014 to 2021

The aim of the present study was to investigate changes in muscle soreness, blood muscle damage markers, muscle strength and agility following an official basketball match. Eleven elite female professional basketball players (27.4 ± 4.8 years, 179.5 ± 5.5 cm, 72.0 ± 7.8 kg) of a team participated in this study. The official match was the seventh match of the season in the first phase of the Brazilian National Female Basketball Championship. Muscle soreness, plasma creatine kinase activity (CK), and myoglobin concentration (Mb) were determined before and after the match (post-match, 24 and 48 hours after the match). The 1RM …

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Global Conventions On Maritime Crimes Involving Piratical Acts, J. Ashley Roach Capt. Jan 2014

Global Conventions On Maritime Crimes Involving Piratical Acts, J. Ashley Roach Capt.

Case Western Reserve Journal of International Law

No abstract provided.

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Child Pirates: Rehabilitation, Reintegration, And Accountability, Mark A. Drumbl Jan 2014

Child Pirates: Rehabilitation, Reintegration, And Accountability, Mark A. Drumbl

Case Western Reserve Journal of International Law

No abstract provided.

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After Artyom: How Efforts To Reform U.S.-Russia Adoption Failed, And What Russia Must Now Do To Ensure The Welfare Of Her Orphans, Sarah Gatti Jan 2014

After Artyom: How Efforts To Reform U.S.-Russia Adoption Failed, And What Russia Must Now Do To Ensure The Welfare Of Her Orphans, Sarah Gatti

Case Western Reserve Journal of International Law

No abstract provided.

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Wings Without Borders: The Case For A Migratory Insect Treaty To Aid Monarch Butterflies, Meena Miriam Yust Jan 2014

Wings Without Borders: The Case For A Migratory Insect Treaty To Aid Monarch Butterflies, Meena Miriam Yust

Case Western Reserve Journal of International Law

No abstract provided.

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The Effects Of Web 2.0 Pedagogy On Student Engagement, Collaboration, And Achievement, Kelsey Lage Jan 2014

The Effects Of Web 2.0 Pedagogy On Student Engagement, Collaboration, And Achievement, Kelsey Lage

Graduate Research Papers

This review explores various studies and articles on the effects of Web 2.0 pedagogy on student engagement, collaboration, and achievement in a K-undergraduate setting. A critical review of purposefully selected peer-reviewed journal articles highlight the relationship between Web 2.0 pedagogy and student engagement, collaboration, and achievement. This literature review provides an analysis for administrators and teachers when implementing Web 2.0 pedagogy. This review suggests that the implementation of Web 2.0 pedagogy increases student engagement, collaboration, and achievement.

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The Effect Of Game-Based Learning On Middle School Students' Academic Achievement, Marija-Lisa Musselman Jan 2014

The Effect Of Game-Based Learning On Middle School Students' Academic Achievement, Marija-Lisa Musselman

Graduate Research Papers

The purpose of this literature review is to explore the connections of paratexts and multiple literacies in game-based learning to traditional literacies and examine the effectiveness of game-based learning on middle school students' academic performance in STEM subjects. Thirty peer-reviewed journal articles with a combination of quantitative and qualitative methods as well as literature reviews were surveyed. Research shows game-based learning is a viable instructional method that offers close connections to traditional literacies in the classroom and an opportunity for improving student academic achievement when implemented purposefully in STEM content areas. Recommendations for teachers' effective implementation and the future directions …

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Effective Implementation Of 1:1 Computing : Benefits And Teacher Readiness, Kirstin Thompson Jan 2014

Effective Implementation Of 1:1 Computing : Benefits And Teacher Readiness, Kirstin Thompson

Graduate Research Papers

One-to-one (1:1) computing initiatives have become widespread in K-12 schools today. The benefits of 1:1 computing are tremendous, but schools must take careful consideration when planning for such initiatives. The purpose of this literature review is to examine effective methods for 1:1 implementation. Thirty peer-reviewed studies on 1:1 computing programs in K-12 schools were purposefully selected, the majority being from 2010 to present. Special attention was given to benefits of 1:1 computing and several key elements leading to teachers' readiness for successful 1:1 program implementation: overcoming teacher fears, changing teacher beliefs and attitudes, and strengthening professional development in order to …

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Development Of Leaf Shape And Vein Homologies In Five Species Of The Genus Ipomoea (Convolvulaceae), Austin William Jones Jan 2014

Development Of Leaf Shape And Vein Homologies In Five Species Of The Genus Ipomoea (Convolvulaceae), Austin William Jones

Dissertations and Theses @ UNI

Angiosperm leaves are extremely variable in form while predominantly maintaining the function of the primary photosynthetic organ of the plant. Changes in leaf form can result from myriad physiological processes which may be influenced by ecology, physical stimuli, phylogeny, or other factors. In studying the development of divergent leaf forms among closely related species, conserved morphological elements may be identified that are not apparent in the mature form. The genus Ipomoea (Convolvulaceae) contains over 600 species and a wide range in leaf shapes. Five species, I. purpurea, I. coccinea, I. sloteri, I. quamoclit, and I. cairica show a range in …

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Impact Of Small-World Topology On The Performance Of A Feed-Forward Artificial Neural Network Based On 2 Different Real-Life Problems, Okan Erkaymaz, Mahmut Özer, Nejat Yumuşak Jan 2014

Impact Of Small-World Topology On The Performance Of A Feed-Forward Artificial Neural Network Based On 2 Different Real-Life Problems, Okan Erkaymaz, Mahmut Özer, Nejat Yumuşak

Turkish Journal of Electrical Engineering and Computer Sciences

Since feed-forward artificial neural networks (FFANNs) are the most widely used models to solve real-life problems, many studies have focused on improving their learning performances by changing the network architecture and learning algorithms. On the other hand, recently, small-world network topology has been shown to meet the characteristics of real-life problems. Therefore, in this study, instead of focusing on the performance of the conventional FFANNs, we investigated how real-life problems can be solved by a FFANN with small-world topology. Therefore, we considered 2 real-life problems: estimating the thermal performance of solar air collectors and predicting the modulus of rupture values …

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A Microscopic Approach To The Pedogenic Formation Of Palygorskite Associated With Quaternary Calcretes Of The Adana Area, Southern Turkey, Meryem Yeşi̇lot Kaplan, Muhsi̇n Eren, Selahatti̇n Kadi̇r, Seli̇m Kapur, Jennifer Huggett Jan 2014

A Microscopic Approach To The Pedogenic Formation Of Palygorskite Associated With Quaternary Calcretes Of The Adana Area, Southern Turkey, Meryem Yeşi̇lot Kaplan, Muhsi̇n Eren, Selahatti̇n Kadi̇r, Seli̇m Kapur, Jennifer Huggett

Turkish Journal of Earth Sciences

Quaternary calcretes in the Adana area (southern Turkey) are widespread and occur in a variety of forms such as nodular, columnar/tubular, fracture-infill, laminated hardpan, and conglomeratic crusts. Palygorskite associated with calcrete nodules, tubes, and fracture-infills in the columnar horizon and adjacent host-rock mudstones suggests a cogenetic formation. The Beta-fabric (biogenic) constituents and stable isotope values of calcretes support a pedogenic origin for calcretes and also palygorskite. Extensions of palygorskite fibre and fibre bundles from euhedral to subhedral calcite crystals in calcretes and from smectite flakes in adjacent host-rock mudstone suggest an authigenic origin related to calcretisation in which precipitation and …

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Alteration Mineral Mapping With Aster Data By Integration Of Coded Spectral Ratio Imaging And Som Neural Network Model, Mohammad Hassan Tayebi, Majid Hashemi Tangestani, Robert Keller Vincent Jan 2014

Alteration Mineral Mapping With Aster Data By Integration Of Coded Spectral Ratio Imaging And Som Neural Network Model, Mohammad Hassan Tayebi, Majid Hashemi Tangestani, Robert Keller Vincent

Turkish Journal of Earth Sciences

This study applied coded spectral ratio imaging and a self-organizing map (SOM) neural network model for subpixel classification of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data to map alteration minerals of the Masahim volcano, SE Iran. Spectra of samples were measured using a FieldSpec spectroradiometer, and were interpreted for finding key alteration minerals. Key minerals including sericite and kaolinite were selected. Thirty-six nonreciprocal spectral ratios of 9 ASTER reflective bands were created. Each spectral parameter (of 9 spectral bands and 36 spectral ratios) for the field and library mineral spectra was divided into deciles. Each decile of spectral …

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Spectroscopic Investigation And Oxidation Of The Anticholinergic Drug Atropine Sulfate Monohydrate By Hexacyanoferrate(Iii) In Aqueous Alkaline Media: A Mechanistic Approach, Manjunath Meti, Sharanappa Nandibewoor, Shivamurti Chimatadar Jan 2014

Spectroscopic Investigation And Oxidation Of The Anticholinergic Drug Atropine Sulfate Monohydrate By Hexacyanoferrate(Iii) In Aqueous Alkaline Media: A Mechanistic Approach, Manjunath Meti, Sharanappa Nandibewoor, Shivamurti Chimatadar

Turkish Journal of Chemistry

The oxidation of the anticholinergic drug atropine sulfate monohydrate by hexacyanoferrate(III) in aqueous alkaline media was investigated spectrophotometrically by monitoring the decrease in absorbance of hexacyanoferrate(III) (HCF(III)). Oxidation products were identified. The oxidation mechanism was proposed from kinetic studies. The reaction constants involved in the different steps of the mechanism were calculated. The effects of added products, ionic strength, and dielectric constant of the reaction were investigated. The polymerization test revealed that oxidation occurred with intervention of free radicals. The activation parameters were evaluated.

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Qsar Study Of Chalcone Derivatives As Anti-Leishmania Agents, Maryam Iman, Asghar Davood, Nasim Banarouei Jan 2014

Qsar Study Of Chalcone Derivatives As Anti-Leishmania Agents, Maryam Iman, Asghar Davood, Nasim Banarouei

Turkish Journal of Chemistry

Quantitative structure activity relationship analyses were used to identify the ideal physicochemical characteristics of potential chalcone derivatives as anti-Leishmania agents. The HyperChem program was used to build chalcone structures and to perform conformational analyses through the semiempirical method followed by the PM3 force field. Dragon calculated a large number of molecular descriptors. Multilinear regression was used for quantitative structure activity relationship modeling. Based on our computational studies, 4 descriptors, SEigv, RDF125v, RDF055u, and O-058, can affect the activity of chalcone derivatives.

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Graphite Oxide As An Efficient Solid Reagent For Esterification Reactions, Maryam Mirzaaghayan, Rabah Boukherroub, Mahshid Rahimifard Jan 2014

Graphite Oxide As An Efficient Solid Reagent For Esterification Reactions, Maryam Mirzaaghayan, Rabah Boukherroub, Mahshid Rahimifard

Turkish Journal of Chemistry

Esterification of organic acids with alcohols under mild conditions in high yields using graphite oxide, a readily available and inexpensive material, as an effective reagent is described.

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Detection Of Caga And Vaca Genotypes Of Helicobacter Pylori Isolates From A University Hospital In Ankara Region, Turkey, Ceren Erdoğdu, Zeynep Saribaş, Yakut Akyön Yilmaz Jan 2014

Detection Of Caga And Vaca Genotypes Of Helicobacter Pylori Isolates From A University Hospital In Ankara Region, Turkey, Ceren Erdoğdu, Zeynep Saribaş, Yakut Akyön Yilmaz

Turkish Journal of Medical Sciences

The cagA and vacA profiles and their association with clinical findings show a distinct geographical distribution. In the present study, we aimed to determine the cagA status and vacA allelic subtypes in strains isolated from a university hospital in Ankara and to evaluate their associations with histopathological and endoscopic findings. Materials and methods: A total of 120 H. pylori strains from stock cultures positive for the ureA gene were randomly included in the present study. Of these strains, cagA and vacA allelic subtypes (s1a, s1b, s2, m1, m2) were examined by polymerase chain reaction. Results: Of the 120 strains, 64 …

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The Feasibility Of Creating A 3d Digital Skeletal Collection For Research Purposes And Museum Use, Karen Leigh Beebe Jan 2014

The Feasibility Of Creating A 3d Digital Skeletal Collection For Research Purposes And Museum Use, Karen Leigh Beebe

LSU Master's Theses

3D scanners offer many advantages to scientists and museum curators, such as a permanent digital archival record of the scanned object, the non-intrusive nature of 3D laser surface scanning, the ability to create and share a digital collection with other researchers, and the portability of recent scanners. With the purpose of determining the feasibility of creating a 3D research collection in mind, I have scanned and studied skeletal material from Wild Cane Cay and Moho Cay, Belize. I explore how the 3D model compares to the physical bone and the significance of 3D imaging to the anthropological community.

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Assimilation, A Biological Nitrogen Removal Strategy For Freshwater Ornamental Fish Hatcheries, Fatemehsadat Fahandezhsadi Jan 2014

Assimilation, A Biological Nitrogen Removal Strategy For Freshwater Ornamental Fish Hatcheries, Fatemehsadat Fahandezhsadi

LSU Master's Theses

Freshwater ornamental fish production is a major component of aquaculture in the southeastern United States. Closed recirculating aquaculture systems (RASs) allow freshwater ornamental fish hatcheries to mimic native water quality conditions for sensitive species. Total ammonia-N (TAN) removal is the major concern for closed RASs. Biological nitrification is the common method to control TAN. However, the nitrification process might be impaired in acidic water condition with pH<7. Another issue of using the nitrification process for TAN removal is that the nitrification is not sufficient to compensate for the amount of ammonia released in larval production systems because of slow growth rate of nitrifying bacteria. To address these issues, this study suggests an aerobic assimilation strategy in which fast growing heterotrophic bacteria directly convert TAN into microbial biomass. The heterotrophic bacteria needs an external carbon source. This study employed polyhydroxybutyrate (PHB) that is a solid insoluble bioplastic, as a carbon source in the aerobic assimilation process to avoid releasing carbon into the system. In order to understand the applicability of an assimilation process instead of nitrification, this study compared the ammonia-N removal rate by aerobic assimilation biofilters operating @ pH 8 and 6.5 in a batch system. The study also quantified the performance of an aerobic assimilation strategy under different continuous nitrogen loading regimes. This investigation can be used to establish the biofilter air pulsing frequency, which is the optimized air pulsing frequency that avoids clogging in the system. The results showed that there was no apparent release of carbon in the water tank. Unlike nitrification, assimilation strategy for TAN removal was not significantly different in two pH of 8 and 6.5 @ 28 ° C. The average consumption rate of the PHB was found as 21.93± 0.43 grams of PHB consumed per gram of TAN. The results from the continuous system, at a continuous feeding rate of 350 mg-N/d, suggested that the optimum air pulsing frequency through the PHB bed for releasing the excess biosolids was about 6-hour. In general, the study found that the aerobic assimilation using polyhydroxybutyrate (PHB) as a carbon source is an applicable method for ammonia-N removal particularly for freshwater ornamental fish production systems. The drawback against this approach is that the PHB beads are expensive. However, our investigations show that the average cost of the PHB beads have been decreased dramatically during the last few years. This might indicate that the assimilation using PHB beads can be a reasonable choice for ammonia-N removal particularly for freshwater ornamental fish production systems.

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Habitat Associations Of Lower Mississippi River Floodplain Fishes On St. Catherine Creek National Wildlife Refuge, Alonda Mccarty Jan 2014

Habitat Associations Of Lower Mississippi River Floodplain Fishes On St. Catherine Creek National Wildlife Refuge, Alonda Mccarty

LSU Master's Theses

Each year, floodplain habitats are inundated and dewatered throughout the lower Mississippi River during the flood pulse. Many organisms, particularly fishes, are facultative or obligate users of inundated floodplain habitats for foraging and reproduction. The abundance and distribution of these fishes are influenced by annual floods, ranging from weeks to months depending on intensity and duration of the pulse. One major consequence of anthropogenic alterations to the river has been the sequential loss of connectivity of floodplain habitats. In light of these changes, a concentrated effort has been made to restore the integrity of the LMR floodplain. An integral part …

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Dgge Analysis Of Denitrifying Bacterial Diversity In Response To Nutrients And Oil Contamination In Salt Marshes, Catalina Restrepo Jan 2014

Dgge Analysis Of Denitrifying Bacterial Diversity In Response To Nutrients And Oil Contamination In Salt Marshes, Catalina Restrepo

LSU Master's Theses

Salt marsh ecosystems located at the Mississippi River delta are exposed to high levels of point and nonpoint sources of nutrients such as nitrate-based fertilizers and to oil spills in the Gulf of Mexico. However, there is little information on the effects of eutrophication and oil contamination on the bacterial diversity of denitrifying bacteria in salt marsh sediments of coastal Louisiana. The effects of excess nutrients on the bacterial diversity of denitrifiers were analyzed by injecting sediment cores with high concentrations of nitrate (100μM NO3- and 20,000μM NO3-) and carbon (0% and 20% C concentration from the original sample). After …

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Control Options For Rhizome Johnsongrass (Sorghum Halepense L. Pers.) In Glufosinate-Resistant Cotton (Gossypium Hirsutum L.) And Soybean (Glycine Max L. Merr.), Randall Lee Landry Jan 2014

Control Options For Rhizome Johnsongrass (Sorghum Halepense L. Pers.) In Glufosinate-Resistant Cotton (Gossypium Hirsutum L.) And Soybean (Glycine Max L. Merr.), Randall Lee Landry

LSU Master's Theses

Field studies were conducted in 2011, 2012, and 2013 near Alexandria, LA to determine glufosinate rates and timings for control of rhizome johnsongrass [Sorghum halepense (L.) Pers.] in glufosinate-resistant soybean [Glycine max (L.)Merr.]. Johnsongrass control (75%) and height reduction (63%) throughout the season were greatest when glufosinate was applied at 0.7 kg ai ha-1 followed by (fb) 0.6 kg ha-1. Furthermore, following initial applications of glufosinate at 0.7 kg ha-1 (2670 kg ha-1) increased soybean yields were observed compared to 0.5 kg ha-1 (2400 kg ha-1), and soybean yields were greater following sequential glufosinate applications of 0.6 kg ha-1 followed …

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How Young Adults Make Meaning Of Their Family Intergenerational Solidarity Through The Use Of Music, Keri B. Petrone Jan 2014

How Young Adults Make Meaning Of Their Family Intergenerational Solidarity Through The Use Of Music, Keri B. Petrone

Antioch University Dissertations & Theses

This qualitative research project explores how young adults make meaning of their family intergenerational solidarity through the use of music. The project employed a type of Interpretative Phenomenological Analysis (IPA) to unlock meaning-making themes among young adults. Data collection consisted of interviewing ten young adults whose family had unintentionally or intentionally used music to increase their family intergenerational solidarity. The interviews were semi-structured. This study attempted to capture the depth of each young adult’s meaning-making. Seven general themes emerged: (a) I have experienced bonding with my family members through the use of music; (b) I have experienced emotional and/or psychological …

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Investigating The Effectiveness Of A Professional Development Program For Secondary Physics Teachers, Meghan Reynolds Jan 2014

Investigating The Effectiveness Of A Professional Development Program For Secondary Physics Teachers, Meghan Reynolds

Dissertations and Theses @ UNI

National studies have exposed a shortage of highly-qualified high school physics teachers, with over 25% of physics teaching vacancies in Iowa being very difficult to fill or unable to be filled. In an effort to improve the nation’s education system, there have been broad changes in the framework of what constitutes high-quality teaching which supports a trend away from traditional, lecture-based teaching methods and towards interactive, student-centered methods. This study analyzed the impact of a professional development program that aimed to prepare more high-quality high school physics teachers by building physics content knowledge through the use of reformed teaching techniques …

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