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Historical Records Of Coastal Eutrophication-Induced Hypoxia, A.J. Gooday, F. Jorissen, L.A. Levin, J.J. Middelburg, S.W.A. Naqvi, N.N. Rabalais, M. Scranton, J. Zhang Jan 2009

Historical Records Of Coastal Eutrophication-Induced Hypoxia, A.J. Gooday, F. Jorissen, L.A. Levin, J.J. Middelburg, S.W.A. Naqvi, N.N. Rabalais, M. Scranton, J. Zhang

Faculty Publications

No abstract provided.

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Seal Bounties In Maine And Massachusetts, 1888 To 1962, Barbarai Lelli, David Harris Ph.D, Aboueissa Abouel-Makarim Jan 2009

Seal Bounties In Maine And Massachusetts, 1888 To 1962, Barbarai Lelli, David Harris Ph.D, Aboueissa Abouel-Makarim

Faculty Publications

Maine and Massachusetts paid bounties on seals during the 19th and 20th centuries. To determine the number of seals killed for bounty, we examined historical records of bounty claims, and used geographic information systems and multiple linear regression to find predictors of places where large numbers of bounties were paid. We found records of 24,831 bounties paid in Maine (1891-1945) and 15,690 in Massachusetts (1888-1962), Considering possible fraud, missing data, and seals struck and lost, this suggests that 72,284 to 135,498 seals were killed in the bounty hunt, probably enough to account for regional declines in seal populations. Larger numbers …

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Assuring Your Child Receives Support For Positive Behavior In The Classroom, Mark D. Weist Jan 2009

Assuring Your Child Receives Support For Positive Behavior In The Classroom, Mark D. Weist

Faculty Publications

No abstract provided.

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Making All The Children Above Average: Ethical And Regulatory Concerns For Pediatricians In Pediatric Enhancement Research, Jessica W. Berg, Maxwell J. Mehlman, Daniel B. Rubin, Eric Kodish Jan 2009

Making All The Children Above Average: Ethical And Regulatory Concerns For Pediatricians In Pediatric Enhancement Research, Jessica W. Berg, Maxwell J. Mehlman, Daniel B. Rubin, Eric Kodish

Faculty Publications

Building on the knowledge generated by the long history of disease-oriented research, the next few decades will witness an explosion of biomedical enhancements to make people faster, stronger, smarter, less forgetful, happier, prettier, and live longer. Growing interest in pediatric enhancements is likely to stimulate the conduct of enhancement research involving children. However, guidelines for the protection of human subjects were developed for investigations of therapeutic modalities. To date, virtually no attention has been paid to whether these rules would be appropriate for investigations to establish the safety and efficacy of technologies intended for enhancement rather than therapeutic uses and, …

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The Nrc Report And Its Implications For Criminal Litigation, Paul C. Giannelli Jan 2009

The Nrc Report And Its Implications For Criminal Litigation, Paul C. Giannelli

Faculty Publications

The National Research Council, an arm of the National Academy of Sciences, issued a landmark report on forensic science in February 2009. In the long run, the report’s recommendations, if adopted, would benefit law enforcement and prosecutors. The recommendations would allow forensic science to develop a strong scientific basis and limit evidentiary challenges regarding the reliability of forensic evidence. In keeping with its congressional charge, however, the NRC Committee did not directly address admissibility issues. Nevertheless, given its content, the report will inevitably be cited in criminal cases. Indeed, within months, the United States Supreme Court cited the report, noting …

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The Role Of Black Barbudans In The Establishment Of Open-Range Cattle Herding In The Colonial Caribbean And South Carolina, Andrew Sluyter Jan 2009

The Role Of Black Barbudans In The Establishment Of Open-Range Cattle Herding In The Colonial Caribbean And South Carolina, Andrew Sluyter

Faculty Publications

Some significant problems remain in understanding the establishment of open-range cattle herding in the Caribbean and North America, especially regarding the role of blacks in that process. Research to date has identified the Greater Antilles, especially Spanish Cuba and British Jamaica, as the sole Caribbean sources of settlers who established the herding systems of, respectively, Mexico and South Carolina. Yet an open-range cattle herding system also occurred in the British Lesser Antilles, which provided many of the settlers for the South Carolina colony. Archival and field research in Antigua and Barbuda provide the basis for comprehensive reconstruction of that system’s …

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Enhanced Immune Response Of Red Deer (Cervus Elaphus) To Live Rb51 Vaccine Strain Using Composite Microspheres, Angela M. Arenas-Gamboa, Thomas A. Ficht, Donald S. Davis, Philip H. Elzer, Alfredo Wong-Gonzalez, Allison C. Rice-Ficht Jan 2009

Enhanced Immune Response Of Red Deer (Cervus Elaphus) To Live Rb51 Vaccine Strain Using Composite Microspheres, Angela M. Arenas-Gamboa, Thomas A. Ficht, Donald S. Davis, Philip H. Elzer, Alfredo Wong-Gonzalez, Allison C. Rice-Ficht

Faculty Publications

Brucellosis is an important zoonotic disease of nearly worldwide distribution. The occurrence of the infection in humans is largely dependent on the prevalence of brucellosis in animal reservoirs, including wildlife. The current vaccine used for cattle Brucella abortus strain RB51, has proven ineffective in protecting bison (Bison bison) and elk (Cervus nelsoni) from infection and abortion. To test possible improvements in vaccine efficacy, a novel approach of immunization was examined from April 2004 to November 2006 using alginate composite microspheres containing a nonimmunogenic, eggshell-precursor protein of the parasite Fasciola hepatica (Vitelline protein B, VpB) to deliver live vaccine strain RB51. …

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Influence Of Calcium And Phosphorus Feeding On Markers Of Bone Metabolism In Transition Cows, V. R. Moreira, L. K. Zeringue, C. C. Williams, C. Leonardi, M. E. Mccormick Jan 2009

Influence Of Calcium And Phosphorus Feeding On Markers Of Bone Metabolism In Transition Cows, V. R. Moreira, L. K. Zeringue, C. C. Williams, C. Leonardi, M. E. Mccormick

Faculty Publications

A study was carried out to verify the effect of Ca and P levels on production, digestibility, and serum bone metabolism biomarkers in dairy cows. Fifty-two nonlactating multiparous cows (≥3 lactations) were confined in a free-stall barn approximately 20 d before calving. A standard close-up diet was fed to cows once daily until d 2 postpartum. Cows were randomly assigned to 1 of 4 dietary treatments arranged in a 2 × 2 factorial approach averaging 0.64% Ca for high Ca (HCa), 0.46% Ca for low Ca (LCa), 0.47% P for high P (HP), and 0.38% P for low P (LP) …

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Life Cycle And Larval Morphology Of Diomus Terminatus (Coleoptera: Coccinellidae) And Its Potential As A Biological Control Agent Of Melanaphis Sacchari (Hemiptera: Aphididae), W. Akbar, C. Carlton, T. E. Reagan Jan 2009

Life Cycle And Larval Morphology Of Diomus Terminatus (Coleoptera: Coccinellidae) And Its Potential As A Biological Control Agent Of Melanaphis Sacchari (Hemiptera: Aphididae), W. Akbar, C. Carlton, T. E. Reagan

Faculty Publications

The life cycle, morphology, and potential of Diomus terminatus Say (Coleoptera: Coccinellidae) to control the sugarcane aphid, Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae), were examined in the laboratory. The morphologies of first and fourth instars are described and illustrated, with emphasis on characters of first instar that differ from those of later instars. Dramatic differences exist in the relative size and abundance of specialized setae between early and late instars. Field-collected late instars of D. terminatus were successfully reared to adult stage at 26°C by using M. sacchari feeding on small pieces of sugarcane (Saccharum spp.) leaves. The eggs laid on …

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Diverse Elevational Diversity Gradients In Great Smoky Mountains National Park, U.S.A., Nathan J. Sanders, Robert R. Dunn, Matthew C. Fitzpatrick, Christopher E. Carlton, Michael R. Pogue, Charles R. Parker, Theodore R. Simons Jan 2009

Diverse Elevational Diversity Gradients In Great Smoky Mountains National Park, U.S.A., Nathan J. Sanders, Robert R. Dunn, Matthew C. Fitzpatrick, Christopher E. Carlton, Michael R. Pogue, Charles R. Parker, Theodore R. Simons

Faculty Publications

© 2010 by Taylor and Francis Group, LLC. Less well studied, however, are the factors that shape elevational diversity gradients. Because many climatic factors vary systematically along elevational gradients, as they might along latitudinal gradients, elevational diversity gradients were thought to be miniature versions of latitudinal gradients (Körner, 2000). For example, Brown (1988) wrote, “Just as change of physical conditions with altitude resembles in many respects the variation with latitude, so the decreasing diversity of most organisms with increasing elevation mirrors in most respects the latitudinal gradient of species richness.” Stevens (1992) noted that, “Biologists have long recognized that elevational …

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Ambient Dose Equivalent Versus Effective Dose For Quantifying Stray Radiation Exposures To A Patient Receiving Proton Therapy For Prostate Cancer, Jonas D. Fontenot, Phillip T. Taddei, Yuanshui Zheng, Dragan Mirkovic, Wayne D. Newhauser Jan 2009

Ambient Dose Equivalent Versus Effective Dose For Quantifying Stray Radiation Exposures To A Patient Receiving Proton Therapy For Prostate Cancer, Jonas D. Fontenot, Phillip T. Taddei, Yuanshui Zheng, Dragan Mirkovic, Wayne D. Newhauser

Faculty Publications

The purpose of this study was to evaluate the suitability of the quantity ambient dose equivalent H*(10) as a conservative estimate of effective dose E for estimating stray radiation exposures to patients receiving passively scattered proton radiotherapy for cancer of the prostate. H*(10), which is determined from fluence free-in-air, is potentially useful because it is simpler to measure or calculate because it avoids the complexities associated with phantoms or patient anatomy. However, the suitability of H*(10) as a surrogate for E has not been demonstrated for exposures to high-energy neutrons emanating from radiation treatments with proton beams. The suitability was …

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Reducing Stray Radiation Dose For A Pediatric Patient Receiving Proton Craniospinal Irradiation, Phillip J. Taddei, Dragan Mirkovic, Jonas D. Fontenot, Annelise Giebeler, Yuanshui Zheng, Uwe Titt, Shiao Woo, Wayne D. Newhauser Jan 2009

Reducing Stray Radiation Dose For A Pediatric Patient Receiving Proton Craniospinal Irradiation, Phillip J. Taddei, Dragan Mirkovic, Jonas D. Fontenot, Annelise Giebeler, Yuanshui Zheng, Uwe Titt, Shiao Woo, Wayne D. Newhauser

Faculty Publications

The aim of this study was to quantify stray radiation dose from neutrons emanating from a proton treatment unit and to evaluate methods of reducing this dose for a pediatric patient undergoing craniospinal irradiation. The organ equivalent doses and effective dose from stray radiation were estimated for a 30.6-Gy treatment using Monte Carlo simulations of a passive scattering treatment unit and a patient-specific voxelized anatomy. The treatment plan was based on computed tomography images of a 10-yr-old male patient. The contribution to stray radiation was evaluated for the standard nozzle and for the same nozzle but with modest modifications to …

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A Track-Repeating Algorithm For Fast Monte Carlo Dose Calculations Of Proton Radiotherapy, Pablo Yepes, Sharmalee Randeniya, Phillip J. Taddei, Wayne D. Newhauser Jan 2009

A Track-Repeating Algorithm For Fast Monte Carlo Dose Calculations Of Proton Radiotherapy, Pablo Yepes, Sharmalee Randeniya, Phillip J. Taddei, Wayne D. Newhauser

Faculty Publications

Monte Carlo codes are utilized for accurate dose calculations in proton radiation therapy research. While they are superior in accuracy to commonly used analytical dose calculations, they require significantly longer computation times. The aim of this work is to characterize a Monte Carlo track-repeating algorithm to increase computation speed without compromising dosimetric accuracy. The track-repeating approach reduced the CPU time required for a complete dose calculation in voxel- ized patient anatomy by more than two orders of magnitude, while on average reproducing the results from the traditional Monte Carlo approach within 4% dose difference and within 1-mm distance to agreement.

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Sos1 And Halophytism., Dong Ha Oh, Ali Zahir, Dae Jin Yun, Ray A. Bressan, Hans J. Bohnert Jan 2009

Sos1 And Halophytism., Dong Ha Oh, Ali Zahir, Dae Jin Yun, Ray A. Bressan, Hans J. Bohnert

Faculty Publications

Much is already known about the function and functioning of the three genes that make up the SOS (Salt-Overly-Sensitive) pathway in plants, but recent studies indicate that the linkage between external increases in salinity and stress protection provided by genes SOS1, SOS2 and SOS3 is more complex than previously appreciated. It has recently been shown that the engineered reduced expression of the sodium/proton antiporter SOS1 affected several pathways indicating a role for SOS1 that exceeds its known function as an antiporter. Interference with expression of SOS1, characterized as a sodium/proton antiporter in the halophyte Thellungiella salsuginea converted Thellungiella into an …

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Phylogenetic Relationships Among Seed Plants: Persistent Questions And The Limits Of Molecular Data, Sarah Mathews Jan 2009

Phylogenetic Relationships Among Seed Plants: Persistent Questions And The Limits Of Molecular Data, Sarah Mathews

Faculty Publications

Trees inferred from DNA sequence data provide only limited insight into the phylogeny of seed plants because the living lineages (cycads, Ginkgo, conifers, gnetophytes, and angiosperms) represent fewer than half of the major lineages that have been detected in the fossil record. Nevertheless, phylogenetic trees of living seed plants inferred from sequence data can provide a test of relationships inferred in analyses that include fossils. So far, however, significant uncertainty persists because nucleotide data support several conflicting hypotheses. It is likely that improved sampling of gymnosperm diversity in nucleotide data sets will help alleviate some of the analytical issues encountered …

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Adipose Tissue Collagen Vi In Obesity, Magdalena Pasarica, Barbara Gowronska-Kozak, David Burk, Isabel Remedios, David Hymel, Jeff Gimble, Eric Ravussin, George A. Bray, Steven R. Smith Jan 2009

Adipose Tissue Collagen Vi In Obesity, Magdalena Pasarica, Barbara Gowronska-Kozak, David Burk, Isabel Remedios, David Hymel, Jeff Gimble, Eric Ravussin, George A. Bray, Steven R. Smith

Faculty Publications

Objectives: Basic science studies show that the extracellular matrix of adipose tissue, mainly represented by collagen VI, is dysfunctional in obesity and contributes to the development of the metabolic syndrome. We hypothesized in humans that increased collagen VI α3-subunit (COL6A3) mRNAis associated with adipose tissue macrophage chemotaxis and inflammation and that weight gain is accompanied by changes in the expression of COL6A3. Research Design and Methods: Adipose tissue biopsies were obtained from a cross-sectional study (n = 109), an overfeeding study (n = 9), and a pioglitazone treatment study (n = 14). Adipose tissue gene expression was measured by quantitative …

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Community-Wide Assessment Of Gpcr Structure Modelling And Ligand Docking: Gpcr Dock 2008, Mayako Michino, Enrique Abola, Charles L. Brooks, J. Scott Dixon, John Moult, Raymond C. Stevens, Arthur Olson, Wiktor Jurkowski, Arne Elofsson, Slawomir Filipek, Irina Pogozheva, Andrei Lomize, Bernard Maigret, Jeremy Horst, Ambrish Roy, Brady Bernard, Shyamala Iyer, Yang Zhang, Ram Samudrala, Osman Ugur Sezerman, Gregory V. Nikiforovich, Christina M. Taylor, Stefano Costanzi, Y. Vorobjev, N. Bakulina, V. Solovyev, Kazuhiko Kanou, Daisuke Takaya, Genki Terashi, Mayuko Takeda-Shitaka, Hideaki Umeyama, William A. Goddard, Youyong Li, Soo Kyung Kim Jan 2009

Community-Wide Assessment Of Gpcr Structure Modelling And Ligand Docking: Gpcr Dock 2008, Mayako Michino, Enrique Abola, Charles L. Brooks, J. Scott Dixon, John Moult, Raymond C. Stevens, Arthur Olson, Wiktor Jurkowski, Arne Elofsson, Slawomir Filipek, Irina Pogozheva, Andrei Lomize, Bernard Maigret, Jeremy Horst, Ambrish Roy, Brady Bernard, Shyamala Iyer, Yang Zhang, Ram Samudrala, Osman Ugur Sezerman, Gregory V. Nikiforovich, Christina M. Taylor, Stefano Costanzi, Y. Vorobjev, N. Bakulina, V. Solovyev, Kazuhiko Kanou, Daisuke Takaya, Genki Terashi, Mayuko Takeda-Shitaka, Hideaki Umeyama, William A. Goddard, Youyong Li, Soo Kyung Kim

Faculty Publications

Recent breakthroughs in the determination of the crystal structures of G protein-coupled receptors (GPCRs) have provided new opportunities for structure-based drug design strategies targeting this protein family. With the aim of evaluating the current status of GPCR structure prediction and ligand docking, a community-wide, blind prediction assessment - GPCR Dock 2008 - was conducted in coordination with the publication of the crystal structure of the human adenosine A2Areceptor bound to the ligand ZM241385. Twenty-nine groups submitted 206 structural models before the release of the experimental structure, which were evaluated for the accuracy of the ligand binding mode and the overall …

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Differential Gene Expression Of Resistant And Susceptible Sweetpotato Plants After Infection With The Causal Agents Of Sweet Potato Virus Disease, Cecilia E. Mcgregor, Douglas W. Miano, Don R. Labonte, Mary Hoy, Chris A. Clark, Guilherme J.M. Rosa Jan 2009

Differential Gene Expression Of Resistant And Susceptible Sweetpotato Plants After Infection With The Causal Agents Of Sweet Potato Virus Disease, Cecilia E. Mcgregor, Douglas W. Miano, Don R. Labonte, Mary Hoy, Chris A. Clark, Guilherme J.M. Rosa

Faculty Publications

Sweet potato virus disease (SPVD) is one of the most devastating diseases affecting sweetpotato (Ipomoea batatas), an important food crop in developing countries. SPVD develops when sweetpotato plants are dually infected with sweet potato feathery mottle virus (SPFMV) and sweet potato chlorotic stunt virus (SPCSV). To better understand the synergistic interaction between these viruses, global gene expression was previously studied in the susceptible cultivar Beauregard. In the current study, global gene expression between SPVD-affected plants and virus-tested control plants (VT) were compared in 'Beauregard' (Bx) and resistant 'NASPOT 1' (Nas) sweetpotato cultivars at 5, 9, 13, and 17 days post …

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Reaction Of Potato Cultivars To Streptomyces Scabies, Causal Agent Of Deep Common Scab, Ivan Herman Fischer, Ana Paula Matoso Teixeira, Leonardo Toffano, Ely Oliveira Garcia Jan 2009

Reaction Of Potato Cultivars To Streptomyces Scabies, Causal Agent Of Deep Common Scab, Ivan Herman Fischer, Ana Paula Matoso Teixeira, Leonardo Toffano, Ely Oliveira Garcia

Faculty Publications

This work aimed to characterize the isolates of Streptomyces, responsible for deep common scab symptoms in potato, according to morphological and physiological criteria; to evaluate the resistance of potato cultivars to the disease and the aggressiveness of bacterium isolates. The Streptomyces isolates presented gray coloration on yeast extract and malt medium and spiral spore chains, produced on aerial hyphae. Production of melanina occurred in tirosine-agar medium and the utilization of eight recommended carbon sources. These properties correspond to the S. scabies species. Healthy potato seeds of six cultivars were planted in substratum infested with six isolates of S. scabies separately, …

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Stabilization In A Two-Species Chemostat With Monod Growth Functions, Frédéric Mazenc, Michael Malisoff, Jérôme Harmand Jan 2009

Stabilization In A Two-Species Chemostat With Monod Growth Functions, Frédéric Mazenc, Michael Malisoff, Jérôme Harmand

Faculty Publications

We design feedback controllers for two species chemostats so that an equilibrium with arbitrary prescribed positive species concentrations becomes globally asymptotically stable. We use a new global explicit strict Lyapunov function construction, which allows us to quantify the effects of disturbances using the input-to-state stability paradigm.We assume that only a linear combination of the species concentrations is known. We illustrate our approach using a numerical example. © 2009, IEEE. All rights reserved.

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Sperm Cryopreservation Of A Live-Bearing Fish, Xiphophorus Couchianus: Male-To-Male Variation In Post-Thaw Motility And Production Of F1 Hybrid Offspring, Huiping Yang, Leona Hazlewood, Ronald B. Walter, Terrence R. Tiersch Jan 2009

Sperm Cryopreservation Of A Live-Bearing Fish, Xiphophorus Couchianus: Male-To-Male Variation In Post-Thaw Motility And Production Of F1 Hybrid Offspring, Huiping Yang, Leona Hazlewood, Ronald B. Walter, Terrence R. Tiersch

Faculty Publications

Fishes of the genus Xiphophorus are well-studied biomedical research models, and some species, such as X. couchianus, are currently listed as endangered in the wild. Sperm cryopreservation in these live-bearing fishes has begun recently. Thus far, live young have been produced with cryopreserved sperm only in one species (Xiphophorus helleri). In this study, the goal was to develop a practical protocol for sperm cryopreservation of Xiphophorus couchianus, and to produce live young with cryopreserved sperm. Sperm were collected by crushing of testis in Hanks' balanced salt solution at an osmolality of 500 mOsmol/kg (HBSS500), and were cryopreserved with 14% glycerol …

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Current Status Of Sperm Cryopreservation In Biomedical Research Fish Models: Zebrafish, Medaka, And Xiphophorus, Huiping Yang, Terrence R. Tiersch Jan 2009

Current Status Of Sperm Cryopreservation In Biomedical Research Fish Models: Zebrafish, Medaka, And Xiphophorus, Huiping Yang, Terrence R. Tiersch

Faculty Publications

Aquarium fishes are becoming increasingly important because of their value in biomedical research and the ornamental fish trade, and because many have become threatened or endangered in the wild. This review summarizes the current status of sperm cryopreservation in three fishes widely used in biomedical research: zebrafish, medaka, and live-bearing fishes of the genus Xiphophorus, and will focus on the needs and opportunities for future research and application of cryopreservation in aquarium fish. First, we summarize the basic biological characteristics regarding natural habitat, testis structure, spermatogenesis, sperm morphology, and sperm physiology. Second, we compare protocol development of sperm cryopreservation. Third, …

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Antifungal And Insecticidal Activity Of Two Juniperus Essential Oils, David E. Wedge, Nurhayat Tabanca, Blair J. Sampson, Christopher Werle, Betul Demirci, K. Husnu Can Baser, Peng Nan, Jia Duan, Zhijun Liu Jan 2009

Antifungal And Insecticidal Activity Of Two Juniperus Essential Oils, David E. Wedge, Nurhayat Tabanca, Blair J. Sampson, Christopher Werle, Betul Demirci, K. Husnu Can Baser, Peng Nan, Jia Duan, Zhijun Liu

Faculty Publications

Essential oils of two Tibetan Junipers Juniperus saltuaria and J. squamata var. fargesii (Cupressaceae) were obtained by distilling dried leaves and branches using a Clevenger apparatus. Sixty-seven compounds from J. saltuaria and 58 from J. squamata var. fargesii were identified by gas chromatography-mass spectrometry (GC-MS). Both essential oils contained similar ratios of four abundant monoterpenoids: 44 and 35% sabinene, 13 and 9% elemol, 8 and 7% terpinen-4-ol, and 4 and 17% α-pinene, respectively. These oils had antifungal activity based on a direct bioautography assay of Colletotrichum acutatum, C. fragariae, and C. gloeosporioides, and insecticidal activity based on serial-time mortality bioassay …

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Twenty Years Of Understorey Bird Extinctions From Amazonian Rain Forest Fragments: Consistent Trends And Landscape-Mediated Dynamics, Philip C. Stouffer, Cheryl Strong, Luciano N. Naka Jan 2009

Twenty Years Of Understorey Bird Extinctions From Amazonian Rain Forest Fragments: Consistent Trends And Landscape-Mediated Dynamics, Philip C. Stouffer, Cheryl Strong, Luciano N. Naka

Faculty Publications

Aim: We analysed presence/absence data for understorey bird species in rain forest fragments sampled from 1979 through 2001. Here we consider extinctions between 1992, when most fragments had been isolated for at least 8 years, and 2001. Our objectives were to determine whether high extinction rates documented soon after isolation continued through up to 20 years after isolation, and to examine fragment size and landscape effects on extinction. Location: Biological Dynamics of Forest Fragments Project, near Manaus, Brazil. Methods: Through 1992, birds were surveyed with standardized mist net sampling in ten 1- to 100-ha fragments. We repeated the mist net …

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Estimation Of The Combining Ability In Early Generations Of Potato Selection, Giovani O. Da Silva, Arione Da S. Pereira, Velci Q. De Souza, Fernando Irajá F. De Carvalho, Roberto Fritsche Neto Jan 2009

Estimation Of The Combining Ability In Early Generations Of Potato Selection, Giovani O. Da Silva, Arione Da S. Pereira, Velci Q. De Souza, Fernando Irajá F. De Carvalho, Roberto Fritsche Neto

Faculty Publications

The combining ability of potato genotypes was estimated in early generations of selection. The experiments were carried out at Embrapa Clima Temperado, in Pelotas, Brazil. Twenty potato families derived from nine genotypes crossed in a 4 x 5 partial mating design (C-1750-15-95, 2CRI-1149-1-78, C-1786-6-96 and 'Eliza'; 'White Lady', 'Asterix', 'BP-1', 'Vivaldi' and 'Ágria') were evaluated. The families were evaluated in seedling and first field generation, in a randomized complete block design, with three replications of 15 genotypes. Each plot consisted of a sample of 15 genotypes of a family. In the two generations, yield, number and average tuber weight were …

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2007 Southern Mensurationists Conference, Mike R. Strub, Chris J. Cieszewski, Quang V. Cao Jan 2009

2007 Southern Mensurationists Conference, Mike R. Strub, Chris J. Cieszewski, Quang V. Cao

Faculty Publications

No abstract provided.

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Habitat Edges, Within-Patch Dispersion Of Hosts, And Parasitoid Oviposition Behavior, James T. Cronin Jan 2009

Habitat Edges, Within-Patch Dispersion Of Hosts, And Parasitoid Oviposition Behavior, James T. Cronin

Faculty Publications

Although density-edge effects are commonly reported, we have only scratched the surface in understanding the mechanisms underlying how habitat edges mediate species interactions. Here, I use a combination of field surveys and experiments to explore the linkages between the presence of host-plant edges (Scolochloa festucacea), the within-patch distribution of planthopper eggs (Delphacodes scolochloa), and the oviposition behavior of their egg parasitoids (Anagrus spp.). The field surveys revealed that densities of hosts and parasitoids at the edge were ≥2.5 times lower than densities in the patch interior and that the effect was independent of patch size. As a consequence of its …

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Integrating Horticulture Biology And Environmental Coastal Issues Into The Middle School Science Curriculum, Kathryn Karsh, Edward Bush, Janice Hinson, Pamela Blanchard Jan 2009

Integrating Horticulture Biology And Environmental Coastal Issues Into The Middle School Science Curriculum, Kathryn Karsh, Edward Bush, Janice Hinson, Pamela Blanchard

Faculty Publications

Encouraging students to become better stewards of the environment and to be more educated in science content knowledge is an important goal of today's educational leaders. Eight lessons were created to aid an established stewardship program (Coastal Roots) in introducing hands-on activities to middle school children in southern Louisiana. Students were tested on science content in the lessons using a pre-test, eight multiple choice quizzes (each focusing on a particular lesson), and a post-test. The "children's attitudes toward the environment scale" test was administered to evaluate environmental awareness changes in the treatment and control group students. Students who received the …

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Low-Cost Container Yard For School-Based Restoration Nurseries, Edward W. Bush, Pamela B. Blanchard Jan 2009

Low-Cost Container Yard For School-Based Restoration Nurseries, Edward W. Bush, Pamela B. Blanchard

Faculty Publications

A small inexpensive (less than $1000) container yard, measuring 10 × 10 ft square, with an automatic irrigation system was designed for schools participating in the Louisiana State University Coastal Roots Program: A School Seedling Nursery Program for Habitat Restoration. Students helped install the container yard on their school site and oversee native plant production through the course of the school year. Teachers and other school staff checked the nursery during summer months to ensure that the irrigation system was working properly and the plants were healthy. Students grew 1000 restoration seedlings per year in their container yard. Each year …

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The Emergence Of Global Environmental Law, Tseming Yang, Robert V. Percival Jan 2009

The Emergence Of Global Environmental Law, Tseming Yang, Robert V. Percival

Faculty Publications

No abstract provided.

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