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Check Soybean Roots For Scn Females, Gregory L. Tylka 2010 Iowa State University

Check Soybean Roots For Scn Females, Gregory L. Tylka

Integrated Crop Management News

The soybean cyst nematode (SCN) is widespread throughout Iowa and surrounding states, and as much as 40 percent yield loss can occur from SCN damage without symptoms appearing. Symptoms typically are not apparent when temperatures are moderate and rainfall is adequate to excessive during the growing season.


In Vitro Enabling Technologies For Use In The Aquatic Environment, Colm J. O'Dowd 2010 Technological University Dublin

In Vitro Enabling Technologies For Use In The Aquatic Environment, Colm J. O'Dowd

Doctoral

O’Dowd, C., Mothersill, C.E., Cairns, M.T., Austin, B., Lyng, F.M., McClean, B. and Murphy, J.E.J. Assessing the mitochondrion as a biomarker of fish tissue damage using g radiation as a stress model in vitro.

There is an ever-increasing need for biomarkers to identify toxic stress in the aquatic environment. Such techniques need to be accurate, expeditious, ethical and economical. Typically, in vitro based platforms fit these criteria however many of these systems often undergo ‘assay drift’ and consequently do not fully represent the real-life situation.

In recent years, there has been growing interest in ...


Distorting The Sarcomere, Kenneth S. Campbell 2010 University of Kentucky

Distorting The Sarcomere, Kenneth S. Campbell

Physiology Faculty Publications

No abstract provided.


Screening Of Transformation Products In Soils Contaminated With Unsymmetrical Dimethylhydrazine Using Headspace Spme And Gc–Ms, Bulat N. Kenessov, Jacek A. Koziel, Tim Grotenhuis, Lars Carlsen 2010 al-Farabi Kazakh National University

Screening Of Transformation Products In Soils Contaminated With Unsymmetrical Dimethylhydrazine Using Headspace Spme And Gc–Ms, Bulat N. Kenessov, Jacek A. Koziel, Tim Grotenhuis, Lars Carlsen

Agricultural and Biosystems Engineering Publications

The paper describes a novel SPME-based approach for sampling and analysis of transformation products of highly reactive and toxic unsymmetrical dimethylhydrazine (UDMH) which is used as a fuel in many Russian, European, Indian, and Chinese heavy cargo carrier rockets. The effects of several parameters were studied to optimize analyte recovery. It was found that the 85 μm Carboxen/polydimethylsiloxane fiber coating provides the highest selectivity for selected UDMH transformation products. Optimal sampling/sample preparation parameters were determined to be 1-h soil headspace sampling time at 40 °C. The GC inlet temperature was optimized to 170 °C held for 0.1 ...


Quantitative Trait Loci For Agronomic And End-Use Quality Performance And The Effect Of Soilborne Wheat Mosaic Virus In A Hard Winter Wheat Population In Nebraska, Nicholas A. Crowley 2010 University of Nebraska at Lincoln

Quantitative Trait Loci For Agronomic And End-Use Quality Performance And The Effect Of Soilborne Wheat Mosaic Virus In A Hard Winter Wheat Population In Nebraska, Nicholas A. Crowley

Theses, Dissertations, and Student Research in Agronomy and Horticulture

To better understand agronomic and end-use quality in wheat (Triticum aestivum L.) we developed a population containing 154 F6:8 recombinant inbred lines (RILs) from the cross TAM107-R7/Arlin. The parental lines and RILs were phenotyped at six environments in Nebraska and differed for resistance to Wheat soilborne mosaic virus (WSBMV), morphological, agronomic, and end-use quality traits. Additionally, a 2300 cM genome-wide linkage map was created for quantitative trait loci (QTL) analysis. Based on our results across multiple environments, the best RILs could be used for cultivar improvement. The population and marker data are publicly available for interested researchers for ...


Novel Regulatory Cascades Controlling Expression Of Nitrogen Fixation Genes, Toshiyuki Ueki, Derek Lovley 2010 University of Massachusetts - Amherst

Novel Regulatory Cascades Controlling Expression Of Nitrogen Fixation Genes, Toshiyuki Ueki, Derek Lovley

Derek Lovley

Geobacter species often play an important role in bioremediation of environments contaminated with metals or organics and show promise for harvesting electricity from waste organic matter in microbial fuel cells. The ability of Geobacter species to fix atmospheric nitrogen is an important metabolic feature for these applications. We identified novel regulatory cascades controlling nitrogen-fixation gene expression in Geobacter sulfurreducens. Unlike the regulatory mechanisms known in other nitrogen-fixing microorganisms, nitrogen-fixation gene regulation in G. sulfurreducens is controlled by two two-component His-Asp phosphorelay systems. One of these systems appears to be the master regulatory system that activates transcription of the majority of ...


Measurement Of Hono, Hnco, And Other Inorganic Acids By Negative-Ion Proton-Transfer Chemical-Ionization Mass Spectrometry (Ni-Pt-Cims): Application To Biomass Burning Emissions, J. M. Roberts, P. Veres, C. Warneke, J. A. Neuman, R. A. Washenfelder, S. S. Brown, M. Baasandorj, J. B. Burkholder, I. R. Burling, T. J. Johnson, Robert J. Yokelson, J. de Gouw 2010 University of Colorado at Boulder

Measurement Of Hono, Hnco, And Other Inorganic Acids By Negative-Ion Proton-Transfer Chemical-Ionization Mass Spectrometry (Ni-Pt-Cims): Application To Biomass Burning Emissions, J. M. Roberts, P. Veres, C. Warneke, J. A. Neuman, R. A. Washenfelder, S. S. Brown, M. Baasandorj, J. B. Burkholder, I. R. Burling, T. J. Johnson, Robert J. Yokelson, J. De Gouw

Chemistry and Biochemistry Faculty Publications

A negative-ion proton-transfer chemical ionization mass spectrometric technique (NI-PT-CIMS), using acetate as the reagent ion, was applied to the measurement of volatile inorganic acids of atmospheric interest: hydrochloric (HCl), nitrous (HONO), nitric (HNO(3)), and isocyanic (HNCO) acids. Gas phase calibrations through the sampling inlet showed the method to be intrinsically sensitive (6-16 cts/pptv), but prone to inlet effects for HNO(3) and HCl. The ion chemistry was found to be insensitive to water vapor concentrations, in agreement with previous studies of carboxylic acids. The inlet equilibration times for HNCO and HONO were 2 to 4s, allowing for measurement ...


Effects Of Alternative Prey As A Buffer To Predation Of Channel Catfish (Ictalurus Punctatus) By Largemouth Bass (Micropterus Salmoides), Shelley Nellis 2010 Virginia Commonwealth University

Effects Of Alternative Prey As A Buffer To Predation Of Channel Catfish (Ictalurus Punctatus) By Largemouth Bass (Micropterus Salmoides), Shelley Nellis

Theses and Dissertations

Channel catfish have pectoral spines that lock to defend against gape-limited predators such as largemouth bass. Previous work indicated that spines increase survival of channel catfish exposed to bass but did not determine whether bass avoid catfish if less dangerous species are available. We presented bass with channel catfish and two alternatives, bluegill and goldfish, and compared order of ingestion, ingestion time, percent of successful strikes, and time spent chasing each prey species. We also presented the three species in a jar study that standardized position in the water column as well as in a net-pen study. The order of ...


Serendipitous Discoveries In Microarray Analysis, Sally R. Ellingson, Charles A. Phillips, Randy Glenn, Douglas Swanson, Thomas Ha, Daniel Goldowitz, Michael A. Langston 2010 University of Tennessee - Knoxville

Serendipitous Discoveries In Microarray Analysis, Sally R. Ellingson, Charles A. Phillips, Randy Glenn, Douglas Swanson, Thomas Ha, Daniel Goldowitz, Michael A. Langston

Faculty Publications and Other Works -- EECS

Background

Scientists are capable of performing very large scale gene expression experiments with current microarray technologies. In order to find significance in the expression data, it is common to use clustering algorithms to group genes with similar expression patterns. Clusters will often contain related genes, such as co-regulated genes or genes in the same biological pathway. It is too expensive and time consuming to test all of the relationships found in large scale microarray experiments. There are many bioinformatics tools that can be used to infer the significance of microarray experiments and cluster analysis.

Materials and methods

In this project ...


Graph Algorithms For Machine Learning: A Case-Control Study Based On Prostate Cancer Populations And High Throughput Transcriptomic Data, Gary L. Rogers, Pablo Moscato, Michael A. Langston 2010 University of Tennessee - Knoxville

Graph Algorithms For Machine Learning: A Case-Control Study Based On Prostate Cancer Populations And High Throughput Transcriptomic Data, Gary L. Rogers, Pablo Moscato, Michael A. Langston

Faculty Publications and Other Works -- EECS

Background

The continuing proliferation of high-throughput biological data promises to revolutionize personalized medicine. Confirming the presence or absence of disease is an important goal. In this study, we seek to identify genes, gene products and biological pathways that are crucial to human health, with prostate cancer chosen as the target disease.

Materials and methods

Using case-control transcriptomic data, we devise a graph theoretical toolkit for this task. It employs both innovative algorithms and novel two-way correlations to pinpoint putative biomarkers that classify unknown samples as cancerous or normal.

Results and conclusion

Observed accuracy on real data suggests that we are ...


Comparative Functional Genomic Study Of Substrate Specificity Evolution Of The Sabath Family Of Methyltransferases In Plants, Nan Zhao, Jean-Luc Ferrer, Xiaofeng Zhuang, Feng Chen 2010 University of Tennessee - Knoxville

Comparative Functional Genomic Study Of Substrate Specificity Evolution Of The Sabath Family Of Methyltransferases In Plants, Nan Zhao, Jean-Luc Ferrer, Xiaofeng Zhuang, Feng Chen

Plant Sciences Publications and Other Works

Background

The plant SABATH protein family is composed of a group of related small molecule methyltransferases (MTs) that catalyze the S-adenosyl-L-methionine dependent methylation of a variety of plant small molecular weight metabolites encompassing widely divergent structures. Some of these substrates are important plant hormones and signaling molecules, such as indole-3-acetic acid (IAA), jasmonic acid (JA) and salicylic acid (SA). Methylating these compounds may have important impacts on plant growth and development. In the previous paper, we presented Indole-3-acetic acid (IAA) methyltransferase (IAMT) as an evolutionarily ancient member of the SABATH family in higher plants. Whether the IAMT exists in less ...


The Effect Of Cobalt Protoporphyrin And Cobalt Chloride On Heme Oxygenase Expression And Protection From Deoxycholate-Induced Apoptosis, Tina Lawson 2010 Virginia Commonwealth University

The Effect Of Cobalt Protoporphyrin And Cobalt Chloride On Heme Oxygenase Expression And Protection From Deoxycholate-Induced Apoptosis, Tina Lawson

Theses and Dissertations

The inner surface of the stomach is lined by a mucous membrane known as the gastric mucosa. The integrity of the gastric mucosa is critical for protecting the stomach from the low pH and proteolytic environment within the lumen. Both clinically and experimentally, exposure of gastric mucosal cells to bile salts is known to cause injury. Bile salts present in duodenogastric reflux are thought to play a significant role in gastric ulcer formation and alkaline gastritis. In vitro, studies using physiologic concentrations of the secondary bile salt, deoxycholic acid, indicate that bile salts can induce apoptosis in cultured human gastric ...


Novel Complement Blocking Antibodies Against Serogroup B N. Meningitidis: A Dissertation, Tathagat Dutta Ray 2010 University of Massachusetts Medical School

Novel Complement Blocking Antibodies Against Serogroup B N. Meningitidis: A Dissertation, Tathagat Dutta Ray

GSBS Dissertations and Theses

N. meningitidis is a common commensal of the human upper respiratory tract and a leading cause of bacterial meningitis and septicemia worldwide. The classical pathway of complement (C) is essential for both naturally acquired and vaccine induced immunity against N. meningitidis. Qualitative and/or quantitative differences in anti-meningococcal antibodies (Abs) in serum is one reason for variations in C-dependent bactericidal Ab activity among individuals. I showed that IgG isolated from select individuals could block killing of group B meningococci by Abs that were otherwise bactericidal. Ligand overlay immunoblots revealed that these blocking IgG Abs were directed against a meningococcal antigen ...


Physiological Studies On Candida Albicans, Swetha Tati 2010 School of Biological Sciences, UNL.

Physiological Studies On Candida Albicans, Swetha Tati

Dissertations and Theses in Biological Sciences

Candida albicans is a common opportunistic, dimorphic human fungal pathogen. One of its virulence factors is the morphological switch between yeasts and hyphal or pseudohyphal forms, which can invade tissues and cause damage. Our studies focus on factors regulating pseudohyphae and epigenetic modifications of C. albicans. Regulating factors of pseudohyphae are aromatic alcohols and high phosphate. At low concentrations, exogenous aromatic alcohols induced pseudohyphae, as did high phosphate. For addressing the pathways involved in inducing pseudohyphae by aromatic alcohols or high phosphate, we used mutants defective in cAMP dependent PKA pathway (efg1/efg1), MAP kinase pathway (cph1/cph1), or both ...


Verbena Urticifolia L., William E. McClain 2010 Eastern Illinois University

Verbena Urticifolia L., William E. Mcclain

Specimens by Name

No abstract provided.


The Impact Of A Pilot Community Intervention On Health-Related Fitness Measures In Overweight Children, Jenny G. Hutchens, Jennifer L. Caputo, Janet M. Colson, Richard S. Farley, Matthew S. Renfrow, Eric P. Seguin 2010 Middle Tennesee State University

The Impact Of A Pilot Community Intervention On Health-Related Fitness Measures In Overweight Children, Jenny G. Hutchens, Jennifer L. Caputo, Janet M. Colson, Richard S. Farley, Matthew S. Renfrow, Eric P. Seguin

International Journal of Exercise Science

The purpose of this study was to pilot a 5-week community-based intervention on improving measures of health-related fitness in overweight children. Data were obtained from 8 overweight and obese 8- to 14-year-old children. Measurements included muscular fitness (curl-ups and modified pull-ups), aerobic capacity (20 meter progressive aerobic cardiovascular endurance run [PACER] test), body composition (tricep and calf skinfolds), body mass index (BMI), and flexibility (back saver sit-and-reach). A significant reduction in BMI was observed at post-test compared to baseline (p = .03). There was a significant decrease in body fat at post-test for boys (p = .013).


Resistance And Aerobic Training Sequence Effects On Energy Consumption In Females, Rachael Cutts, Steve Burns 2010 University of Central Missouri

Resistance And Aerobic Training Sequence Effects On Energy Consumption In Females, Rachael Cutts, Steve Burns

International Journal of Exercise Science

Purpose: The objective of this study was to investigate the effect of sequence of resistance and aerobic training on energy consumption on sedentary overweight females. Methods: Participants were 15 sedentary overweight females (age = 28.6 ±12 yrs; BMI = 28.1±7.8) Subjects did a counterbalanced intervention: resistance training (circuit training) first (intervention RT) or aerobic exercise first (intervention AT), while oxygen consumption was continuously measured for 80 min. Subjects performed a warm-up on the treadmill at 40% of their heart rate reserve for 5 minutes, then for 30 minutes did continuous walking or jogging on the treadmill at ~67 ...


Longitudinal, Diet-Induced Weight Gain Is Associated With Increased Blood Monocytes And Reduced Tlr4 Expression, Kelley Strohacker, Richard J. Simpson, Katie C. Carpenter, Whitney L. Breslin, Brian K. McFarlin 2010 University of Houston - Main

Longitudinal, Diet-Induced Weight Gain Is Associated With Increased Blood Monocytes And Reduced Tlr4 Expression, Kelley Strohacker, Richard J. Simpson, Katie C. Carpenter, Whitney L. Breslin, Brian K. Mcfarlin

International Journal of Exercise Science

Excessive weight gain increases systemic inflammation resulting in increased disease risk. Toll-like receptor 4 (TLR4) reportedly mediates increases in inflammation; however, its role has not been fully evaluated. Objective. The purpose of this study was to determine the longitudinal effect of diet-induced weight gain on blood monocyte concentration and cell-surface TLR4 expression. Research Methods & Procedures. Male CD-1 mice were randomly assigned to high-fat (HF, n = 12) or low-fat (LF, n = 13) groups. Non-lethal, saphenous vein blood samples were collected at 0, 4, 8 and 12 weeks of treatment. Three-color flow cytometry was used to measure monocyte (CD11b+/CD14+) concentration and TLR4 cells-surface expression. Data were analyzed with a repeated measures ANOVA; significance was set at P<0.05. Results. Body weight at week 12 was 21% greater in HF than LF (P<0.05). At week 12 HF had 155% more monocytes (P<0.05) with 24% less TLR4; Monocyte concentration and body weight at week 12 was negatively correlated with TLR4 gMFI (P<0.05). Conclusions. The observed effects of high-fat feeding on blood monocytes are consistent with a phenotype, which may be associated with premature morbidity. The observed monocyte responses may be associated with immune dysfunction and diminished response to infection.


Does A Physical Education Bout Alter Percent Body Fat And The Adiposity Health Risk Classification When Using Leg-To-Leg Bioelectrical Impedance Analysis In Girls?, Elise Fitzgerald, Angela Fatool, Curt B. Dixon, Joseph L. Andreacci 2010 Bloomsburg University

Does A Physical Education Bout Alter Percent Body Fat And The Adiposity Health Risk Classification When Using Leg-To-Leg Bioelectrical Impedance Analysis In Girls?, Elise Fitzgerald, Angela Fatool, Curt B. Dixon, Joseph L. Andreacci

International Journal of Exercise Science

Purpose: The purposes of this investigation were to determine: 1) whether a structured in-school physical education exercise bout altered percent body fat (%BF) determined by leg-to-leg bioelectrical impedance analysis (LBIA); and 2) whether the potential exercise-induced %BF magnitude of change altered the health risk classification of the child. Methods: Seventy-six girls (age: 12.2 ± 1.0 yr; height: 153.9 ± 7.5 cm; body mass: 51.9 ± 15.5 kg; BMI: 21.7 ± 5.4 kg/m2) participated in this investigation. LBIA measured %BF values were obtained immediately before and within five minutes after completing a structured, in-school, physical education ...


Does Standing On A Cycle-Ergometer, Towards The Conclusion Of A Graded Exercise Test, Yield Cardiorespiratory Values Equivalent To Treadmill Testing?, Joshua Mitchell, William B. Kist, Kendall Mears, Jesse Nalls, Kyle Ritter 2010 Southern Arkansas University-Magnolia

Does Standing On A Cycle-Ergometer, Towards The Conclusion Of A Graded Exercise Test, Yield Cardiorespiratory Values Equivalent To Treadmill Testing?, Joshua Mitchell, William B. Kist, Kendall Mears, Jesse Nalls, Kyle Ritter

International Journal of Exercise Science

Graded exercise testing (GXT), per a cycle-ergometer (CE), offers safety and monitoring advantages over treadmill (TM) GXT. Unfortunately, CE-VO2max and some other cardiorespiratory (CR) variables are frequently lower than TM-GXT values. It has been difficult to compare TM and CE-GXT values. However, it was hypothesized that standing towards the conclusion of the CE-GXT (Stand-CE) might increase CE values to those equal to TM-GXT. If Stand-CE and TM-GXT CR values were equal, Stand-CE-GXT could become the method of choice for GXT for the general population. The purpose of this investigation was to investigate the effect of Stand-CE on CR variables. An ...


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