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Role Stress, Emotional Exhaustion, And Job Satisfaction In The Hotel Industry: The Moderating Role Of Supervisory Support, Osman M. Karatepe 2010 Eastern Mediterranean University

Role Stress, Emotional Exhaustion, And Job Satisfaction In The Hotel Industry: The Moderating Role Of Supervisory Support, Osman M. Karatepe

Hospitality Review

The purpose of this study is to investigate supervisory support as a moderator of the effects of role conflict and role ambiguity on emotional exhaustion and job satisfaction. This study also examines the moderating role of supervisory support on the relationship between emotional exhaustion and job satisfaction. Data were collected from a sample of frontline hotel employees in Northern Cyprus. The aforementioned relationships were tested based on hierarchical multiple regression analysis. The results demonstrate that supervisory support mitigates the impact of role conflict on emotional exhaustion and further reveal that supervisory support reduces the effect of emotional exhaustion on job ...


Genome3d: A Viewer-Model Framework For Integrating And Visualizing Multi-Scale Epigenomic Information Within A Three-Dimensional Genome, Thomas M. Asbury, Matt Mitman, Jijun Tang, W. Jim Zheng 2010 University of South Carolina - Columbia

Genome3d: A Viewer-Model Framework For Integrating And Visualizing Multi-Scale Epigenomic Information Within A Three-Dimensional Genome, Thomas M. Asbury, Matt Mitman, Jijun Tang, W. Jim Zheng

Faculty Publications

Background
New technologies are enabling the measurement of many types of genomic and epigenomic information at scales ranging from the atomic to nuclear. Much of this new data is increasingly structural in nature, and is often difficult to coordinate with other data sets. There is a legitimate need for integrating and visualizing these disparate data sets to reveal structural relationships not apparent when looking at these data in isolation.

Results
We have applied object-oriented technology to develop a downloadable visualization tool, Genome3D, for integrating and displaying epigenomic data within a prescribed three-dimensional physical model of the human genome. In order ...


Using Jackknife To Assess The Quality Of Gene Order Phylogenies, Jian Shi, Yiwei Zhang, Haiwei Luo, Jijun Tang 2010 University of South Carolina - Columbia

Using Jackknife To Assess The Quality Of Gene Order Phylogenies, Jian Shi, Yiwei Zhang, Haiwei Luo, Jijun Tang

Faculty Publications

Background
In recent years, gene order data has attracted increasing attention from both biologists and computer scientists as a new type of data for phylogenetic analysis. If gene orders are viewed as one character with a large number of states, traditional bootstrap procedures cannot be applied. Researchers began to use a jackknife resampling method to assess the quality of gene order phylogenies.

Results
In this paper, we design and conduct a set of experiments to validate the performance of this jackknife procedure and provide discussions on how to conduct it properly. Our results show that jackknife is very useful to ...


Density Based Pruning For Identification Of Differentially Expressed Genes From Microarray Data, Jianjun Hu, J. Xu 2010 University of South Carolina - Columbia

Density Based Pruning For Identification Of Differentially Expressed Genes From Microarray Data, Jianjun Hu, J. Xu

Faculty Publications

Motivation

Identification of differentially expressed genes from microarray datasets is one of the most important analyses for microarray data mining. Popular algorithms such as statistical t-test rank genes based on a single statistics. The false positive rate of these methods can be improved by considering other features of differentially expressed genes.

Results

We proposed a pattern recognition strategy for identifying differentially expressed genes. Genes are mapped to a two dimension feature space composed of average difference of gene expression and average expression levels. A density based pruning algorithm (DB Pruning) is developed to screen out potential differentially expressed genes usually ...


Bayesmotif: De Novo Protein Sorting Motif Discovery From Impure Datasets, Jianjun Hu, F. Zhang 2010 University of South Carolina - Columbia

Bayesmotif: De Novo Protein Sorting Motif Discovery From Impure Datasets, Jianjun Hu, F. Zhang

Faculty Publications

Background

Protein sorting is the process that newly synthesized proteins are transported to their target locations within or outside of the cell. This process is precisely regulated by protein sorting signals in different forms. A major category of sorting signals are amino acid sub-sequences usually located at the N-terminals or C-terminals of protein sequences. Genome-wide experimental identification of protein sorting signals is extremely time-consuming and costly. Effective computational algorithms for de novo discovery of protein sorting signals is needed to improve the understanding of protein sorting mechanisms.

Methods

We formulated the protein sorting motif discovery problem as a classification problem ...


Environmental Monitoring: Acoustic Wireless Sensors For Pest Detection, Adam Osseiran 2010 Edith Cowan University

Environmental Monitoring: Acoustic Wireless Sensors For Pest Detection, Adam Osseiran

ECU Research Week

Presented at a Showcase of Research at the School of Engineering.


Erk Activation And Cell Growth Require Cam Kinases In Mcf-7 Breast Cancer Cells, John M. Schmitt, Ellen Abell, Andrea Wagner, Monika A. Davare 2010 George Fox University

Erk Activation And Cell Growth Require Cam Kinases In Mcf-7 Breast Cancer Cells, John M. Schmitt, Ellen Abell, Andrea Wagner, Monika A. Davare

Faculty Publications - Department of Biology and Chemistry

Previous studies on MCF-7 breast cancer cells have shown that the G-protein coupled receptor (GPCR) agonist carbachol increases intracellular calcium levels and the activation of extracellular signal-regulated kinase (ERK). Calcium and calmodulin regulate the calcium/calmodulin- dependent kinase (CaM kinase) family of proteins that have been proposed to regulate ERK and gene transcription. Our results suggest that both estrogen (E2) and carbachol treatment of MCF-7 breast cancer cells trigger phosphorylation of ERK I /2 and the transcription factor Elk-1. Carbachol and estrogen triggered nearly a four- to sixfold increase in MCF-7 cell proliferation by 96 h, respectively. Carbachol-stimulated ERK activation ...


Nip/Duoxa Is Essential For Drosophila Embryonic Development And Regulates Oxidative Stress Response., Xiaojun Xie, Jack Hu, Xiping Liu, Hanjuan Qin, Anthony Percival-Smith, Yong Rao, Shawn S C Li 2010 Western University

Nip/Duoxa Is Essential For Drosophila Embryonic Development And Regulates Oxidative Stress Response., Xiaojun Xie, Jack Hu, Xiping Liu, Hanjuan Qin, Anthony Percival-Smith, Yong Rao, Shawn S C Li

Biochemistry Publications

NIP/DuoxA, originally cloned as a protein capable of binding to the cell fate determinant Numb in Drosophila, was recently identified as a modulator of reactive oxygen species (ROS) production in mammalian systems. Despite biochemical and cellular studies that link NIP/DuoxA to the generation of ROS through the dual oxidase (Duox) enzyme, the in vivo function of NIP/DuoxA has not been characterized to date. Here we report a genetic and functional characterization of nip in Drosophila melanogaster. We show that nip is essential for Drosophila development as nip null mutants die at the 1(st) larval instar. Expression ...


Whole Genome Wide Expression Profiles Of Vitis Amurensis Grape Responding To Downy Mildew By Using Solexa Sequencing Technology, Jiao Wu, Yali Zhang, Huiqin Zhang, Hong Huang, Kevin M. Folta, Jiang Lu 2010 China Agricultural University

Whole Genome Wide Expression Profiles Of Vitis Amurensis Grape Responding To Downy Mildew By Using Solexa Sequencing Technology, Jiao Wu, Yali Zhang, Huiqin Zhang, Hong Huang, Kevin M. Folta, Jiang Lu

School of Information Faculty Publications

Background

Downy mildew (DM), caused by pathogen Plasmopara viticola (PV) is the single most damaging disease of grapes (Vitis L.) worldwide. However, the mechanisms of the disease development in grapes are poorly understood. A method for estimating gene expression levels using Solexa sequencing of Type I restriction-endonuclease-generated cDNA fragments was used for deep sequencing the transcriptomes resulting from PV infected leaves of Vitis amurensis Rupr. cv. Zuoshan-1. Our goal is to identify genes that are involved in resistance to grape DM disease.

Results

Approximately 8.5 million (M) 21-nt cDNA tags were sequenced in the cDNA library derived from PV ...


Identification Of A Nuclear Export Signal In The Catalytic Subunit Of Amp-Activated Protein Kinase, Nevzat Kazgan, Tyisha Williams, Lawrence J. Forsberg, Jay E. Brenman 2010 University of North Carolina at Chapel Hill

Identification Of A Nuclear Export Signal In The Catalytic Subunit Of Amp-Activated Protein Kinase, Nevzat Kazgan, Tyisha Williams, Lawrence J. Forsberg, Jay E. Brenman

Biology Faculty Research

No abstract provided.


Differences In Ultrasonic Vocalizations Between Wild And Laboratory California Mice (Peromyscus Californicus), Matina C. Kalcounis-Rueppell, Radmila Petric, Jessica R. Briggs, Catherine Carney, Matthew M. Marshall, John T. Willse, David O. Ribble, Janet P. Crossland 2010 University of North Carolina at Greensboro

Differences In Ultrasonic Vocalizations Between Wild And Laboratory California Mice (Peromyscus Californicus), Matina C. Kalcounis-Rueppell, Radmila Petric, Jessica R. Briggs, Catherine Carney, Matthew M. Marshall, John T. Willse, David O. Ribble, Janet P. Crossland

Biology Faculty Research

Background: Ultrasonic vocalizations (USVs) emitted by muroid rodents, including laboratory mice and rats, are used as phenotypic markers in behavioral assays and biomedical research. Interpretation of these USVs depends on understanding the significance of USV production by rodents in the wild. However, there has never been a study of muroid rodent ultrasound function in the wild and comparisons of USVs produced by wild and laboratory rodents are lacking to date. Here, we report the first comparison of wild and captive rodent USVs recorded from the same species, Peromyscus californicus. Methodology and Principal Findings: We used standard ultrasound recording techniques to ...


Distribution And Ecotypic Variation Of The Invasive Annual Barb Goatgrass (Aegiolops Triuncialis) On Serpentine Soil, Kelly G. Lyons, A M. Shapiro, Mark W. Schwartz 2010 Trinity University

Distribution And Ecotypic Variation Of The Invasive Annual Barb Goatgrass (Aegiolops Triuncialis) On Serpentine Soil, Kelly G. Lyons, A M. Shapiro, Mark W. Schwartz

Biology Faculty Research

Successful colonization of newly introduced species is driven by a multitude of factors and is highly dependent on the species. It has long been hypothesized that preadaptation and postestablishment natural selection of introduced species can facilitate their invasion; however, to date, limited research has been dedicated to these theories. In addition, although the correlation between establishment of invasive species and disturbance has been noted and widely studied, the susceptibility of undisturbed habitats to invasion remains unclear. In California, serpentine habitats are severe edaphic environments that have been relatively free of anthropogenic disturbance and nonindigenous species invasions. In this study, we ...


Leopold Letter Winter 2010, Leopold Center for Sustainable Agriculture 2010 Iowa State University

Leopold Letter Winter 2010, Leopold Center For Sustainable Agriculture

Leopold Letter

Organic conference marks more than decade of research, bright future ahead ; Project looks at organic livestock issues ; Interim Director: The 'people factor' and making room for innovation ; Kirschenmann: The food and agriculture landscape of our future ; Audubon couple to receive 2010 Spencer Award ; Guest Column: Resilience and a systems approach through another lens ; Guest Column: Looking at resilience from the farm level ; Project adds biodiversity to public lands, options for goat, cattle producers ; 2010 Pesek colloquium connects climate change, agriculture ; Research Results ; News & Notes ; Meeting Highlights


Expression And Self-Assembly Of Virus-Like Particles From Two Genotypes Of Marine Vesiviruses And Development Of An Elisa For The Detection Of Antibodies, Shasta D. McClenahan, Karin Bok, Stanislav V. Sosnovtsev, John D. Neill, Kathy A. Burek, Kimberlee B. Beckmen, Alvin W. Smith, Kim Y. Green, Carlos H. Romero 2010 University of Florida

Expression And Self-Assembly Of Virus-Like Particles From Two Genotypes Of Marine Vesiviruses And Development Of An Elisa For The Detection Of Antibodies, Shasta D. Mcclenahan, Karin Bok, Stanislav V. Sosnovtsev, John D. Neill, Kathy A. Burek, Kimberlee B. Beckmen, Alvin W. Smith, Kim Y. Green, Carlos H. Romero

Publications from USDA-ARS / UNL Faculty

Sequences encoding the major and minor capsid proteins (VP1 and VP2) from two marine vesivirus isolates (Steller sea lion viruses V810 and V1415) were engineered for expression of virus-like particles (VLPs) in the baculovirus system. The resulting VLPs were morphologically similar to native vesivirus virions. Purified VLPs were probed in immunoblots with pooled antisera specific for nine San Miguel sea lion virus (SMSV) types, and a predominant protein of approximately 60 kDa was detected. An enzyme linked immunosorbent assay (ELISA) for the detection of antibodies was developed in which the VLPs served as antigen. The VLPs were adsorbed to the ...


Classical Biological Control For The Protection Of Natural Ecosystems, R.G. Van Driesche, R I. Carruthers, T. Center, M.S. Hoddle, J. Hough-Goldstein, L. Morin, L. Smith, D.L. Wagner, B. Blossey, V. Brancatini, R. Casagrande, C.E. Causton, J.A. Coetzee, J. Cuda, J. Ding, S.V. Fowler, J.H. Frank, R. Fuester, J. Goolsby, M. Grodowitz, T.A. Heard, M.P. Hill, J.H. Hoffmann, J. Huber, M. Julien, M.T.K. Kairo, M. Kenis, P. Mason, J. Medal, R. Messing, R. Miller, A. Moore, P. Neuenschwander, R. Newman, H. Norambuena, W.A. Palmer, R. Pemberton, A. Perez-Panduro, P.D. Pratt, M. Rayamajhi, S. Salom, D. Sands, S. Schooler, M. Schwarzländer, A. Sheppard, R. Shaw, P.W. Tipping, R.D. van Klinken 2010 University of Massachusetts

Classical Biological Control For The Protection Of Natural Ecosystems, R.G. Van Driesche, R I. Carruthers, T. Center, M.S. Hoddle, J. Hough-Goldstein, L. Morin, L. Smith, D.L. Wagner, B. Blossey, V. Brancatini, R. Casagrande, C.E. Causton, J.A. Coetzee, J. Cuda, J. Ding, S.V. Fowler, J.H. Frank, R. Fuester, J. Goolsby, M. Grodowitz, T.A. Heard, M.P. Hill, J.H. Hoffmann, J. Huber, M. Julien, M.T.K. Kairo, M. Kenis, P. Mason, J. Medal, R. Messing, R. Miller, A. Moore, P. Neuenschwander, R. Newman, H. Norambuena, W.A. Palmer, R. Pemberton, A. Perez-Panduro, P.D. Pratt, M. Rayamajhi, S. Salom, D. Sands, S. Schooler, M. Schwarzländer, A. Sheppard, R. Shaw, P.W. Tipping, R.D. Van Klinken

Publications from USDA-ARS / UNL Faculty

Of the 70 cases of classical biological control for the protection of nature found in our review, there were fewer projects against insect targets (21) than against invasive plants (49), in part, because many insect biological control projects were carried out against agricultural pests, while nearly all projects against plants targeted invasive plants in natural ecosystems. Of 21 insect projects, 81% (17) provided benefits to protection of biodiversity, while 48% (10) protected products harvested from natural systems, and 5% (1) preserved ecosystem services, with many projects contributing to more than one goal. In contrast, of the 49 projects against invasive ...


Genetic Improvement In Winter Wheat Yields In The Great Plains Of North America, 1959–2008, Robert A. Graybosch, C. James Peterson 2010 University of Nebraska-Lincoln

Genetic Improvement In Winter Wheat Yields In The Great Plains Of North America, 1959–2008, Robert A. Graybosch, C. James Peterson

Publications from USDA-ARS / UNL Faculty

Data from USDA-coordinated winter wheat (Triticum aestivum L.) regional performance nurseries collected over the time period 1959 to 2008 were used to estimate genetic gain (loss) in grain yield, grain volume weight, days to heading, and plant height in winter wheats adapted to the Great Plains of North America. In both the Southern Regional (SRPN) and Northern Regional Performance Nurseries (NRPN), linear regression revealed significant positive relationships between relative grain yields of advanced breeding lines and calendar year of the nursery trial. The estimated genetic gain in grain yield potential since 1959 was approximately 1.1% (of the control cultivar ...


Structure-Activity Relationships Of 33 Carboxamides As Toxicants Against Female Aedes Aegypti (Diptera: Culicidae), Julia Pridgeon, James J. Becnel, Ulrich R. Bernier, Gary G. Clark, Kenneth J. Linthicum 2010 USDA-ARS

Structure-Activity Relationships Of 33 Carboxamides As Toxicants Against Female Aedes Aegypti (Diptera: Culicidae), Julia Pridgeon, James J. Becnel, Ulrich R. Bernier, Gary G. Clark, Kenneth J. Linthicum

Publications from USDA-ARS / UNL Faculty

Aedes aegypti L. is the primary vector of dengue and yellow fever viruses, and use of aerosolized insecticides is one of the primary ways to control this medically important mosquito. However, few new insecticides have been developed for mosquito control in recent years. As a part of our effort to search for new insecticides to control mosquitoes, toxicities of 33 carboxamides were evaluated against female A. aegypti by topical application. This group included nine different categories of compounds, namely benzamides, phenyl-propenamides, propanamides, butanamides, butenamides, pentanamides, pentenamides, hexanamides, and hexenamides, that exhibited varying levels of toxicity against this mosquito species. The ...


Eupatorium Capillifolium Essential Oil: Chemical Composition, Antifungal Activity, And Insecticidal Activity, Nurhayat Tabanca, Ulrich R. Bernier, Maia Tsikolia, James Becnel, Blair Sampson, Chris Werle, Betül Demirci, Kemal Hüsnü Can Başer, Eugene K. Blythe, Cecil Pounders, David E. Wedge 2010 USDA-ARS

Eupatorium Capillifolium Essential Oil: Chemical Composition, Antifungal Activity, And Insecticidal Activity, Nurhayat Tabanca, Ulrich R. Bernier, Maia Tsikolia, James Becnel, Blair Sampson, Chris Werle, Betül Demirci, Kemal Hüsnü Can Başer, Eugene K. Blythe, Cecil Pounders, David E. Wedge

Publications from USDA-ARS / UNL Faculty

Natural plant extracts often contain compounds that are useful in pest management applications. The essential oil of Eupatorium capillifolium (dog-fennel) was investigated for antifungal and insecticidal activities. Essential oil obtained by hydrodistillation of aerial parts was analyzed by gas chromatography (GC) and gas chromatography–mass spectrometry (GC/MS). The major components were determined to be thymol methyl ether (=methyl thymol) (36.3%), 2,5-dimethoxy-p-cymene (20.8%) and myrcene (15.7%). Antifungal activity of the essential oil was weak against the plant pathogens Colletotrichum acutatum, C. fragariae, and C. gloeosporioides in direct bioautography assay. The E. capillifolium oil showed ...


Fluid Fertilizer’S Role In Sustaining Soils Used For Bio-Fuels Production, John L. Kovar, Douglas L. Karlen 2010 USDA-ARS

Fluid Fertilizer’S Role In Sustaining Soils Used For Bio-Fuels Production, John L. Kovar, Douglas L. Karlen

Publications from USDA-ARS / UNL Faculty

The short- and long-term effects on soil nutrient cycling, physical properties, and biological activity of striving for higher grain yields and removing crop residues for bio-fuels production must be understood to provide more quantitative crop and soil management guidelines. This study focuses primarily on potassium (K) and sulfur (S) response by corn (Zea mays L.) grown for bio-energy feedstock production. Our objectives for 2009 were to evaluate (i) the performance of several S fertilizers, including liquid ammonium thiosulfate (12-0-0-26S), for corn grown in Iowa, and (ii) the use of surface or subsurface bands of N-P-K-S fluid fertilizers to optimize positional ...


Fluid Fertilizer’S Role In Sustaining Soils Used For Bio-Fuels Production, John L. Kovar, Douglas L. Karlen 2010 USDA-ARS

Fluid Fertilizer’S Role In Sustaining Soils Used For Bio-Fuels Production, John L. Kovar, Douglas L. Karlen

Publications from USDA-ARS / UNL Faculty

Fast pyrolysis is optimized for production of bio-oil. Product yields are typically ~65% bio-oil, 20% biochar, 15% syngas.

Project Objective

To investigate N, P, K, and S dynamics in a comprehensive residue removal, tillage, and nutrient management study

Project Treatments

*Residue removal: 0, 50%, 90%

*Tillage: chisel plow, no-till

*Nutrient management: conventional (30K plants/A), high input (44K plants/A)

•Bio-char: 0, 4.32 tons/A, 8.25 tons/A

•Cover crops: annual, perennial

2009 Soil Test Levels

2009 Nutrient Management

Field Measurements

•Stand counts

•Whole-plant samples at V6

•Ear-leaf samples at mid-silk

•Grain yield and moisture

•Stover yield and ...


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