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School Of Renewable Natural Resources Newsletter, Winter 2004, Louisiana State University And Agricultural & Mechanical College

Research Matters & RNR Newsletters

The annual newsletter from the School of Renewable Natural Resources was a publication which aimed to update and entertain interested readers with the news and research from RNR faculty, students and staff.

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Special Issue: Native Food Production Knowledge Systems And Practices: Alternative Values And Outcomes-From The Guest Editors, Andrew Sluyter, Alfred H. Siemens

Faculty Publications

No abstract provided.

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Los Orígenes Ecológicos Y Las Consecuencias De La Ganadería En La Nueva España Durante El Siglo Xvi, Andrew Sluyter

Faculty Publications

No abstract provided.

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Degree-Day Models For Emergence And Development Of The Rice Water Weevil (Coleoptera: Curculionidae) In Southwestern Louisiana, Li Zou, Michael J. Stout, Dennis R. Ring

Faculty Publications

The rice water weevil, Lissorhoptrus oryzophilus Kuschel, is the most destructive insect pest of rice in the United States. Degree-day (DD) models were developed to predict the emergence date of adult rice water weevils from overwintering in the spring and to describe larval and pupal development on two varieties of rice under field conditions. The model that best described emergence of weevils from overwintering was derived from 14 yr of light trap captures. The temperature threshold for the best-fit model was 15.6°C, the start date for the model (date at which degree-day accumulation begins) was 33 d after 1 January, …

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Effects Of The Presence Of Barnyardgrass On Rice Water Weevil (Coleoptera: Curculionidae) And Rice Stink Bug (Hemiptera: Pentatomidae) Populations On Rice, K. V. Tindall, M. J. Stout, B. J. Williams

Faculty Publications

Both the rice water weevil, Lissorhoptrus oryzophilus Kuschel, and rice stink bug, Oebalus pugnax (F.), are important pests of rice, Oryza sativa L., in the United States. The host ranges of both insects primarily consist of monocotyledonous plants. Previous research has shown that the rice water weevil prefers barnyardgrass, Echinochloa crus-galli Beauv., over rice for feeding and oviposition. Barnyardgrass is also a preferred host for rice stink bug. Thus, presence of barnyardgrass in rice fields may alter populations of one or both insects. Field experiments were conducted to determine how the presence of a preferred host influences rice water weevil …

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Rice Water Weevil (Coleoptera: Curculionidae) Population Dynamics In Louisiana, Hanwu Shang, Michael J. Stout, Zhitao Zhang, Jiaan Cheng

Faculty Publications

The rice water weevil, Lissorhoptrus oryzophilus Kuschel, has long been an important pest of rice in the U.S. and has recently emerged as a pest of rice in Asia. A systematic study of the life history and population dynamics of this insect was conducted during the 2002 growing season at the Louisiana State University Rice Research Station, Crowley, Acadia Parish, LA, an area where it is a particularly severe pest. By monitoring weevil populations using collections from overwintering sites, from plots of rice planted throughout the growing season, and from light traps, and by dissecting collected weevils to assess the …

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Retrotransposition Of Alu Elements: How Many Sources?, Richard Cordaux, Dale J. Hedges, Mark A. Batzer

Faculty Publications

It is generally thought that only a few Alu elements are capable of retrotransposition and that these 'master' sources produce inactive copies. Here, we use a network phylogenetic approach to demonstrate that recently integrated human-specific Alu subfamilies typically contain 10-20% of secondary source elements that contributed 20-40% of all subfamily members. This multiplicity of source elements provides new insight into the remarkably successful amplification strategy of the Alu family.

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Feeding Effects Of Ischnodemus Variegatus (Hemiptera: Blissidae) On Photosynthesis And Growth Of Hymenachne Amplexicaulis (Poaceae), William A. Overholt, Sharon M.L. Ewe, Rodrigo Diaz, Eric C. Morgan, Onour E. Moeri

Faculty Publications

The influence of Ischnodemus variegatus feeding on photosynthesis and growth of the invasive semi-aquatic grass, Hymenachne amplexicaulis, was investigated in field and greenhouse environments. In the field, carbon dioxide assimilation of infested plants was approximately 35% less than that of non-infested plants, and the rate of assimilation was related to I. variegatus density. The relative growth rate of infested plants in the greenhouse was 77% of that of non-infested plants, and biomass of infested plants was significantly less than for non-infested plants 79 days after infestation. The value of I. variegatus as a fortuitous biological control agent of H. amplexicaulis …

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Comment On "Molecular Phylogenies Link Rates Of Evolution And Speciation" (I)., Christopher C. Witt, Robb T. Brumfield

Faculty Publications

No abstract provided.

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Improving Laws, Declining World: The Tort Of Contamination, William H. Rodgers Jr.

Valparaiso University Law Review

No abstract provided.

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Evolution, Politics And Law, Bailey Kuklin

Valparaiso University Law Review

No abstract provided.

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For God Or Grades? States Imposing Fewer Requirements On Religious Home Schoolers And The Religion Clauses Of The First Amendment, Laura J. Bach

Valparaiso University Law Review

No abstract provided.

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Multiracial Identity, Monoracial Authenticity & Racial Privacy: Towards An Adequate Theory Of Mulitracial Resistance, Maurice R. Dyson

Michigan Journal of Race and Law

This Article is divided into five parts. Part I briefly places the significance of the Supreme Court's affirmative action ruling in Grutter v. Bollinger in context, particularly the implications of its recommended twenty-five year timeframe in recognizing racial diversity. Part II examines the dangerous consequences of implicit assumptions underlying the RPI. More specifically, I investigate the potential ramifications the RPI would have had upon multiple sectors of our society, including healthcare, education, and law enforcement. In the process, I attempt to demonstrate that the concept of racial privacy is a strategic misnomer intended not to protect one's privacy, but rather …

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Splitting Hairs: Why Courts Uphold Prison Grooming Policies And Why They Should Not, Mara R. Schneider

Michigan Journal of Race and Law

Part I of this Note describes the substance of prison grooming policies and provides a sampling of cases that have challenged these policies under the Equal Protection and Free Exercise Clauses. Part II explores three theories of discrimination that describe certain types of discriminatory conduct that could be prohibited by the Equal Protection and Free Exercise Clauses. These theories inform the definition of "equal protection of the laws" and impact the analysis of equal protection challenges to prison grooming policies. Part III explores the "religious exemptions" doctrine and explains how courts have interpreted the protections offered to religious groups by …

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The Plight Of Same-Sex Harassment Victims Under Title Vii: Why Sexual Orientation Discrimination Should Be Recognized As A Form Of Sex Stereotyping, Sonya K. Parrish

Nevada Law Journal

No abstract provided.

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Characterizing The Role Of Nadp-Malic Enzyme In Stomatal Conductance, Jason Coliadis

Senior Honors Theses and Projects

A reliable supply of water is required to maintain virtually all forms of life. Plants, which lack the ability to migrate away from harsh environments, have evolved numerous mechanisms to cope with natural fluctuations of water availability. One type of modification is known as stomata, taken from the Greek word for “mouth”. Stomata resemble tiny mouths on the underside of leaves, opening and closing to regulate cellular water loss. Research has shown that over expression of NADP Malic Enzyme in transgenic plants causes the stomata to remain more closed. This decreases the amount of organismal water loss via transpiration, …

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Hcc Architecture - Hormonal Communications And Control Architecture, Paul R. Thompson

Theses

This thesis aims to provide a novel framework for a multiagent system implementation. The major feature of the proposed architecture is the introduction of the biological concept of hormones. The hormones are passed via the communication network to convey limited global system state knowledge. The agents' response to a hormone is interpreted depending on its own local agent state. The primary focus of this thesis is the development of the particulars of the architecture. Prior work of multiagent systems research is reviewed and studied for contributions. Biological studies of hormones are employed to draw out interaction rules and analyze control …

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Food And Art: A Brief History, Isaac Rivera

Theses

Not Included

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Models Of Statistical Self-Similarity For Signal And Image Synthesis, Seungsin Lee

Theses

Statistical self-similarity of random processes in continuous-domains is defined through invariance of their statistics to time or spatial scaling. In discrete-time, scaling by an arbitrary factor of signals can be accomplished through frequency warping, and statistical self-similarity is defined by the discrete-time continuous-dilation scaling operation. Unlike other self-similarity models mostly relying on characteristics of continuous self-similarity other than scaling, this model provides a way to express discrete-time statistical self-similarity using scaling of discrete-time signals. This dissertation studies the discrete-time self-similarity model based on the new scaling operation, and develops its properties, which reveals relations with other models. Furthermore, it also …

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Modular Display Fixture System, Young C. Lee

Theses

Not Included

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Mapping Of Diepoxybutane Damage In The Cytochrome B Domain Of Mitochondrial Dna And The Β-Globin Domain Of Nuclear Chicken Dna Using Quantitative Pcr, Justin Juskewitch

Honors Theses

Diepoxybutane (DEB), a known industrial carcinogen, reacts with DNA primarily at the N7 position of deoxyguanosine residues and creates interstrand cross-links at the sequence 5'-GNC. Since N7-N7 cross-links cause DNA to fragment upon heating, quantative polymerase chain reaction (QPCR) is being used in this experiment to measure the amount of DEB damage (lesion frequency) with three different targets-mitochondrial (unpackaged), open chromatin region, and closed chromatin region. Initial measurements of DEB damage within these three targets were not consistent because the template DNA was not the limiting reagent in the PCR. Follow-up PCR trials using a limiting amount of DNA are …

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Effects Of Riparian Forest Buffers On Water Quality In The Canandaigua Lake Watershed, Trish Rider

Theses

As watershed landscapes have been transformed to accommodate agriculture and urbanization, non-point source pollution has emerged as an important environmental issue, and riparian forest buffers (RFB) are recommended to control the flow of pollution into stream ecosystems. The Natural Resources Conservation Service recommends that RFBs have a width of at least 30 meters to protect water quality from surface runoff and non-point source pollution. The water quality, RFBs, and land uses within two tributaries of the Canandaigua Lake Watershed were investigated to determine if a positive correlation exists between water quality and RFB width as well as to determine if …

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Experimental Investigation Of Surface Roughness Microstructures And Their Effects On Pressure Drop Characteristics In Rectangular Minichannels, Derek J. Schmitt

Theses

A literature review has been conducted on pressure drop in mini/microchannels to evaluate major discrepancies in experimental work dealing with pressure drop in these small passages. The aim of the present work is to investigate the effects of surface roughness elements on pressure drop in minichannels in an effort to determine if conventional friction factor equations are valid in predicting the friction factor in minichannels. In the present work, an experimental study is carried out to investigate the effects of surface roughness on air and water flow through rectangular channels with hydraulic diameters ranging from 325µm to 1819µm. Smooth surface …

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Intrinsic Motivation In The Classroom: Increasing Learning And Retention, Emily K. Hesek

Theses

A growing body of research suggests that intrinsic motivation and self-determination are key factors in academic achievement and success. The present study investigated whether children learned and retained information better when taught a social skills lesson using a self-determining approach, rather than a traditional directive lesson plan. In particular, this study examined whether lesson plans that included choice and autonomy support would affect students' intrinsic motivation for the task, and improve their learning and retention over time. Fifty-six fourth grade students from a large suburban school district in upstate New York participated. Significant group differences were found on a pre-test …

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Sources And Cycling Of Carbonyl Sulfide In The Sargasso Sea, Gregory A. Cutter, Lynda S. Cutter, Katherine C. Filippino

OES Faculty Publications

The cycling of the radiatively important gas carbonyl sulfide (OCS) was studied in surface waters of the Sargasso Sea. In August 1999, surface OCS concentrations averaged 8.6 pmol L^-1, showed minor diel variations, and varied little with depth. An OCS precursor, total dissolved organic sulfur (DOS), was lowest at the surface (40 nmol L^-1) and increased with depth. The photoproduction rate of OCS from in situ incubations averaged 9.6 pmol L^-1 h^-1, whereas dark production was 7.0 pmol L^-1 h^-1. Apparent quantum yields were 10^-5-10^-7 from 313-436 …

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Light Dependence Of Selenium Uptake By Phytoplankton And Implications For Predicting Selenium Incorporation Into Food Webs, Stephen B. Baines, Nicholas S. Fisher, Martina A. Doblin, Gregory A. Cutter, Lynda S. Cutter, Brian Cole

OES Faculty Publications

The potentially toxic element selenium is first concentrated from solution to a large but highly variable degree by algae and bacteria before being passed on to consumers. The large loads of abiotic and detrital suspended particles often present in rivers and estuaries may obscure spatial and temporal patterns in Se concentrations at the base of the food web. We used radiotracers to estimate uptake of both selenite (Se(IV)) and C by intact plankton communities at two sites in the Sacramento/San Joaquin River Delta. Our goals were to determine (1) whether C and Se(IV) uptake were coupled, (2) the role of …

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Analytical Intercomparison Between Flow Injection-Chemiluminescence And Flow Injection-Spectrophotometry For The Determination Of Picomolar Concentrations Of Iron In Seawater, Andrew R. Bowie, Peter N. Sedwick, Paul J. Worsfold

OES Faculty Publications

A lab- and ship-based analytical intercomparison of two flow injection methods for the determination of iron in seawater was conducted, using three different sets of seawater samples collected from the Southern Ocean and South Atlantic. In one exercise, iron was determined in three different size-fractions (< 0.03 &μm, < 0.4 μm, and unfiltered) in an effort to better characterize the operational nature of each analytical technique with respect to filter size. Measured Fe concentrations were in the range 0.19 to 1.19 nM using flow injection with luminol chemiluminescence detection (FI-CL), and 0.07 to 1.54 nM using flow injection with catalytic spectrophotometric detection with N, N-dimethyl-p-phenylenediamine dihydrochloride (FI-DPD). The arithmetic mean for the FI-CL method was higher (by 0.09 nM) than the FI-DPD method for dissolved (< 0.4 μm) Fe, a difference that is comparable to the analytical blanks, which were as high as 0.13 nM ( CL) and 0.09 nM (DPD). There was generally good agreement between the FI-CL determinations for the < 0.03 μm size fraction and the FI-DPD determinations for the < 0.4 μm size fraction in freshly collected samples. Differences in total-dissolvable ( unfiltered) Fe concentrations determined by the two FI methods were more variable, reflecting the added complexity associated with the analysis of partially digested particulate material in these samples. Overall, however, the FI-CL determinations were significantly (P = 0.05) lower than the FI-DPD determinations for the unfiltered samples. Our results suggest that the observed, systematic inter-method differences reflect measurement of different physicochemical fractions of Fe present in seawater, such that colloidal and/or organic iron species are better determined by the FI-CL method than the FI-DPD method. This idea is supported by our observation that inter-method differences were largest for freshly collected acidified seawater, which suggests extended storage (>6 months) of acidified samples as a possible protocol for the determination of dissolved iron in seawater.

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Influence Of Short-Term Variations In Food On Survival Of Crassotrea Gigas Larvae: A Modeling Study, Eric N. Powell, Eleanor A, Bochenek, John M. Klinck, Eileen E. Hofmann

OES Faculty Publications

A biochemically-based model was developed to simulate the growth, development, and metamorphosis of larvae of the Pacific oyster, Crassostrea gigas. The model defines larvae in terms of their protein, lipid, carbohydrate, and ash content and includes variation in growth efficiency and egg quality to better simulate cohort population dynamics. Changes in tissue composition occur as the larva grows and in response to the biochemical composition of the food. The premise behind this modeling study was that certain periods of larval life are more critical than others with respect to the availability of food and that food quality is as …

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Physical Forcing Of Phytoplankton Community Structure And Primary Production In Continental Shelf Waters Of The Western Antarctic Peninsula, Barbara B. Prézelin, Eileen E. Hofmann, Mark Moline, John M. Klinck

OES Faculty Publications

Analyses of a multidisciplinary data set, collected in continental shelf waters of the Western Antarctic Peninsula (WAP) during austral summer of January 1993, identified a previously unrecognized forcing mechanism that sets up a physical and chemical structure that supports and assures site-specific diatom-dominated communities and enhanced biological production (Prézelin et al., 2000). This forcing is active when the southern boundary of the Antarctic Circumpolar Current (ACC) flows along the shelf edge, thereby facilitating onshelf bottom intrusions of nutrient-rich Upper Circumpolar Deep Water (UCDW), which then is upwelled or mixed into the upper water column. At times or locations where UCDW …

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Black Carbon In Estuarine And Coastal Ocean Dissolved Organic Matter, Antonio Mannino, H. Rodger Harvey

OES Faculty Publications

We measured black carbon (BC) in ultrafiltered, high-molecular weight dissolved organic matter (UDOM) in surface waters of Delaware Bay, Chesapeake Bay, and the adjacent Atlantic Ocean (U.S.A.) to investigate the importance of riverine and estuarine dissolved organic matter (DOM) as a source of BC to the ocean. BC was 5-72% of UDOM-C (27 ± 17%), which corresponds to 8.9 ± 6.5% of dissolved organic carbon (DOC), with higher values in the heavily urbanized midbay region of the Delaware Estuary and lower yields in the river and coastal ocean. The spatial and seasonal distributions of BC along the salinity gradient of …

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Full-Text Articles in Entire DC Network

School Of Renewable Natural Resources Newsletter, Winter 2004, Louisiana State University And Agricultural & Mechanical College

Research Matters & RNR Newsletters

Special Issue: Native Food Production Knowledge Systems And Practices: Alternative Values And Outcomes-From The Guest Editors, Andrew Sluyter, Alfred H. Siemens

Faculty Publications

Los Orígenes Ecológicos Y Las Consecuencias De La Ganadería En La Nueva España Durante El Siglo Xvi, Andrew Sluyter

Faculty Publications

Degree-Day Models For Emergence And Development Of The Rice Water Weevil (Coleoptera: Curculionidae) In Southwestern Louisiana, Li Zou, Michael J. Stout, Dennis R. Ring

Faculty Publications

Effects Of The Presence Of Barnyardgrass On Rice Water Weevil (Coleoptera: Curculionidae) And Rice Stink Bug (Hemiptera: Pentatomidae) Populations On Rice, K. V. Tindall, M. J. Stout, B. J. Williams

Faculty Publications

Rice Water Weevil (Coleoptera: Curculionidae) Population Dynamics In Louisiana, Hanwu Shang, Michael J. Stout, Zhitao Zhang, Jiaan Cheng

Faculty Publications

Retrotransposition Of Alu Elements: How Many Sources?, Richard Cordaux, Dale J. Hedges, Mark A. Batzer

Faculty Publications

Feeding Effects Of Ischnodemus Variegatus (Hemiptera: Blissidae) On Photosynthesis And Growth Of Hymenachne Amplexicaulis (Poaceae), William A. Overholt, Sharon M.L. Ewe, Rodrigo Diaz, Eric C. Morgan, Onour E. Moeri

Faculty Publications

Comment On "Molecular Phylogenies Link Rates Of Evolution And Speciation" (I)., Christopher C. Witt, Robb T. Brumfield

Faculty Publications

Improving Laws, Declining World: The Tort Of Contamination, William H. Rodgers Jr.

Valparaiso University Law Review

Evolution, Politics And Law, Bailey Kuklin

Valparaiso University Law Review

For God Or Grades? States Imposing Fewer Requirements On Religious Home Schoolers And The Religion Clauses Of The First Amendment, Laura J. Bach

Valparaiso University Law Review

Multiracial Identity, Monoracial Authenticity & Racial Privacy: Towards An Adequate Theory Of Mulitracial Resistance, Maurice R. Dyson

Michigan Journal of Race and Law

Splitting Hairs: Why Courts Uphold Prison Grooming Policies And Why They Should Not, Mara R. Schneider

Michigan Journal of Race and Law

The Plight Of Same-Sex Harassment Victims Under Title Vii: Why Sexual Orientation Discrimination Should Be Recognized As A Form Of Sex Stereotyping, Sonya K. Parrish

Nevada Law Journal

Characterizing The Role Of Nadp-Malic Enzyme In Stomatal Conductance, Jason Coliadis

Senior Honors Theses and Projects

Hcc Architecture - Hormonal Communications And Control Architecture, Paul R. Thompson

Theses

Food And Art: A Brief History, Isaac Rivera

Theses

Models Of Statistical Self-Similarity For Signal And Image Synthesis, Seungsin Lee

Theses

Modular Display Fixture System, Young C. Lee

Theses

Mapping Of Diepoxybutane Damage In The Cytochrome B Domain Of Mitochondrial Dna And The Β-Globin Domain Of Nuclear Chicken Dna Using Quantitative Pcr, Justin Juskewitch

Honors Theses

Effects Of Riparian Forest Buffers On Water Quality In The Canandaigua Lake Watershed, Trish Rider

Theses

Experimental Investigation Of Surface Roughness Microstructures And Their Effects On Pressure Drop Characteristics In Rectangular Minichannels, Derek J. Schmitt

Theses

Intrinsic Motivation In The Classroom: Increasing Learning And Retention, Emily K. Hesek

Theses

Sources And Cycling Of Carbonyl Sulfide In The Sargasso Sea, Gregory A. Cutter, Lynda S. Cutter, Katherine C. Filippino

OES Faculty Publications

Light Dependence Of Selenium Uptake By Phytoplankton And Implications For Predicting Selenium Incorporation Into Food Webs, Stephen B. Baines, Nicholas S. Fisher, Martina A. Doblin, Gregory A. Cutter, Lynda S. Cutter, Brian Cole

OES Faculty Publications

Analytical Intercomparison Between Flow Injection-Chemiluminescence And Flow Injection-Spectrophotometry For The Determination Of Picomolar Concentrations Of Iron In Seawater, Andrew R. Bowie, Peter N. Sedwick, Paul J. Worsfold

OES Faculty Publications

Influence Of Short-Term Variations In Food On Survival Of Crassotrea Gigas Larvae: A Modeling Study, Eric N. Powell, Eleanor A, Bochenek, John M. Klinck, Eileen E. Hofmann

OES Faculty Publications

Physical Forcing Of Phytoplankton Community Structure And Primary Production In Continental Shelf Waters Of The Western Antarctic Peninsula, Barbara B. Prézelin, Eileen E. Hofmann, Mark Moline, John M. Klinck

OES Faculty Publications

Black Carbon In Estuarine And Coastal Ocean Dissolved Organic Matter, Antonio Mannino, H. Rodger Harvey

OES Faculty Publications