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Articles 391 - 420 of 4790

Full-Text Articles in Life Sciences

Long-Term Effects Of Estradiol Replacement In The Olfactory System, Britto P. Nathan, Michael Tonsor, Robert G. Struble Sep 2012

Long-Term Effects Of Estradiol Replacement In The Olfactory System, Britto P. Nathan, Michael Tonsor, Robert G. Struble

Faculty Research & Creative Activity

Olfactory dysfunction often precedes other clinical symptoms in chronic neurodegenerative diseases like Alzheimer’s and Parkinson’s disease. Estrogen deficiency and apoE genotype are known risk factors in these diseases and these factors also affect olfaction. Therefore we examined the effects of estradiol replacement following ovariectomy on expression of apoE and markers of cell proliferation, neuronal maturation, synaptogenesis and reactive gliosis in the primary olfactory pathway of wild-type (WT) and apoE knockout (KO) mice. Estradiol replacement increased apoE staining in the olfactory nerve and glomerular layers. Estradiol increased astrocyte density and olfactory epithelium (OE) thickness regardless of the genotype. In addition estradiol …


Long-Term Effects Of Estradiol Replacement In The Olfactory System, Britto Nathan, Michael Tonsor, Robert Struble Sep 2012

Long-Term Effects Of Estradiol Replacement In The Olfactory System, Britto Nathan, Michael Tonsor, Robert Struble

Faculty Research & Creative Activity

Olfactory dysfunction often precedes other clinical symptoms in chronic neurodegenerative diseases like Alzheimer’s and Parkinson’s disease. Estrogen deficiency and apoE genotype are known risk factors in these diseases and these factors also affect olfaction. Therefore we examined the effects of estradiol replacement following ovariectomy on expression of apoE and markers of cell proliferation, neuronal maturation, synaptogenesis and reactive gliosis in the primary olfactory pathway of wild-type (WT) and apoE knockout (KO) mice. Estradiol replacement increased apoE staining in the olfactory nerve and glomerular layers. Estradiol increased astrocyte density and olfactory epithelium (OE) thickness regardless of the genotype. In addition estradiol …


Verbena Urticifolia L., Gordon C. Tucker Aug 2012

Verbena Urticifolia L., Gordon C. Tucker

Specimens by Name

No abstract provided.


Verbena Urticifolia L., Gordon C. Tucker Aug 2012

Verbena Urticifolia L., Gordon C. Tucker

Specimens by Name

No abstract provided.


Acer Negundo L., Wayne Longbottom Aug 2012

Acer Negundo L., Wayne Longbottom

Specimens by Name

No abstract provided.


Long-Term Survival Of Anoxia Despite Rapid Atp Decline In Embryos Of The Annual Killifish Austrofundulus Limnaeus, Jason E. Podrabsky, Michael A. Menze, Steven C. Hand Aug 2012

Long-Term Survival Of Anoxia Despite Rapid Atp Decline In Embryos Of The Annual Killifish Austrofundulus Limnaeus, Jason E. Podrabsky, Michael A. Menze, Steven C. Hand

Faculty Research & Creative Activity

Embryos of the annual killifish Austrofundulus limnaeus can survive for months in the complete absence of oxygen. Survival of anoxia is associated with entry into a state of metabolic dormancy known as diapause. However, extreme tolerance of anoxia is retained for several days of post-diapause development. Rates of heat dissipation in diapause II and 4 days post-diapause II embryos were measured under aerobic conditions and during the transition into anoxia. Phosphorylated adenylate compounds were quantified in embryos during entry into anoxia and after 12 hr of aerobic recovery. Rates of heat dissipation were not affected by exposure to anoxia in …


A New Species Of Saphonecrus (Hymenoptera, Cynipoidea) Associated With Plant Galls On Castanopsis (Fagaceae) In China, Zhiwei Liu, Xiao-Hui Yang, Dao-Hong Zhu, Yi-Yuan He Jul 2012

A New Species Of Saphonecrus (Hymenoptera, Cynipoidea) Associated With Plant Galls On Castanopsis (Fagaceae) In China, Zhiwei Liu, Xiao-Hui Yang, Dao-Hong Zhu, Yi-Yuan He

Faculty Research & Creative Activity

A new cynipid species, Saphonecrus hupingshanensis Liu, Yang, et Zhu, sp. nov. (Hymenoptera: Cynipidae: Synergini), is described from China. This is the first species of the inquilinous tribe Synergini ever known to have an association with chinquapins (Fagaceae: Castanopsis). The biology and implication to species diversity of Cynipidae in eastern and southeast Asia are discussed.


A New Species Of Saphonecrus (Hymenoptera, Cynipoidea) Associated With Plant Galls On Castanopsis (Fagaceae) In China, Zhiwei Liu, Xiao-Hui Yang, Dao-Hong Zhu, Yi-Yuan He Jul 2012

A New Species Of Saphonecrus (Hymenoptera, Cynipoidea) Associated With Plant Galls On Castanopsis (Fagaceae) In China, Zhiwei Liu, Xiao-Hui Yang, Dao-Hong Zhu, Yi-Yuan He

Faculty Research & Creative Activity

A new cynipid species, Saphonecrus hupingshanensis Liu, Yang, et Zhu, sp. nov. (Hymenoptera: Cynipidae: Synergini), is described from China. This is the first species of the inquilinous tribe Synergini ever known to have an association with chinquapins (Fagaceae: Castanopsis). The biology and implication to species diversity of Cynipidae in eastern and southeast Asia are discussed.


Samolus Parviflorus Raf., Loy R. Phillippe Jun 2012

Samolus Parviflorus Raf., Loy R. Phillippe

Specimens by Name

No abstract provided.


Morus Rubra L., Loy R. Phillippe, Connie Carroll-Cunningham, Richard L. Larimore, Danielle Ruffatto Jun 2012

Morus Rubra L., Loy R. Phillippe, Connie Carroll-Cunningham, Richard L. Larimore, Danielle Ruffatto

Specimens by Name

No abstract provided.


Comparing Thigh Muscle Cross-Sectional Area And Squat Strength Among National Class Olympic Weightlifters, Power Lifters, And Bodybuilders, James J. Di Naso, Brian L. Pritschet, John D. Emmett, Jill W. Owen, Jeffrey Willardson, Travis W. Beck, Jason M. Defreitas, Fabio E. Fontana Jun 2012

Comparing Thigh Muscle Cross-Sectional Area And Squat Strength Among National Class Olympic Weightlifters, Power Lifters, And Bodybuilders, James J. Di Naso, Brian L. Pritschet, John D. Emmett, Jill W. Owen, Jeffrey Willardson, Travis W. Beck, Jason M. Defreitas, Fabio E. Fontana

Faculty Research and Creative Activity

Few studies have compared anthropometric characteristics among national class athletes from different resistance training disciplines, such as Olympic Weightlifting (OL), Power Lifting (PL), and Bodybuilding (BB). Objective: The purpose of the current study was to determine if significant differences exist in the relationship between thigh muscle cross-sectional area and back squat strength among national class athletes from the sports of OL, PL, and BB. Methods: Fifteen national class athletes were assessed for back squat strength, mid-thigh circumference, and mid-thigh skinfold from which total thigh cross-sectional was estimated. A series of One-Way ANOVAs and Pearson Product Moment Correlations were used to …


Vitis Riparia Michx., Gordon C. Tucker May 2012

Vitis Riparia Michx., Gordon C. Tucker

Specimens by Name

No abstract provided.


Fraxinus Pennsylvanica Marsh., Loy R. Phillippe May 2012

Fraxinus Pennsylvanica Marsh., Loy R. Phillippe

Specimens by Name

No abstract provided.


Viola Striata Aiton, Loy R. Phillippe May 2012

Viola Striata Aiton, Loy R. Phillippe

Specimens by Name

No abstract provided.


Genome Wide Analysis Of Hepatic Gene Silencing In Mammalian Cell Variants, Jeffrey L. Kurkewich May 2012

Genome Wide Analysis Of Hepatic Gene Silencing In Mammalian Cell Variants, Jeffrey L. Kurkewich

Undergraduate Honors Theses

Using microarray data, a genome wide analysis of hepatic gene-silencing in four hepatoma variant cell lines was carried out. The purpose of this analysis was to identify candidate genes that may be able to restore liver function in non-functional cell variants, ultimately giving insight into the mechanisms behind global hepatic gene expression. Based on a selection scheme allowing only for genes activated or repressed at least 5 fold in 2 out of the 4 variant cell lines, 225 genes were found to be repressed while a total of 76 genes were found to be activated. Of the repressed genes identified, …


Using Comparative Genomics For Inquiry-Based Learning To Dissect Virulence Of Escherichia Coli O157:H7 And Yersinia Pestis, David J. Baumler, Lois M. Banta, Kai F. Hung, Jodi A. Schwarz, Eric L. Cabot, Jeremy D. Glasner, Nicole T. Perna Apr 2012

Using Comparative Genomics For Inquiry-Based Learning To Dissect Virulence Of Escherichia Coli O157:H7 And Yersinia Pestis, David J. Baumler, Lois M. Banta, Kai F. Hung, Jodi A. Schwarz, Eric L. Cabot, Jeremy D. Glasner, Nicole T. Perna

Faculty Research & Creative Activity

Genomics and bioinformatics are topics of increasing interest in undergraduate biological science curricula. Many existing exercises focus on gene annotation and analysis of a single genome. In this paper, we present two educational modules designed to enable students to learn and apply fundamental concepts in comparative genomics using examples related to bacterial pathogenesis. Students first examine alignments of genomes of Escherichia coli O157:H7 strains isolated from three food-poisoning outbreaks using the multiple-genome alignment tool Mauve. Students investigate conservation of virulence factors using the Mauve viewer and by browsing annotations available at the A Systematic Annotation Package for Community Analysis of …


Effects Of Hot Water On Breaking Seed Dormancy Of The Endangered Kankakee Mallow (Iliamna Remota Greene (Malvaceae), April Mcdonnell, Marissa Grant, Janice M. Coons Apr 2012

Effects Of Hot Water On Breaking Seed Dormancy Of The Endangered Kankakee Mallow (Iliamna Remota Greene (Malvaceae), April Mcdonnell, Marissa Grant, Janice M. Coons

Faculty Research & Creative Activity

Iliamna remota Greene (Kankakee mallow, Malvaceae) is listed as endangered in Illinois and is endemic to Langham Island in the Kankakee River, Kankakee County, Illinois. Information on ways to break seed dormancy of I. remota would be useful for restoration and management. The purpose of this study was to determine if hot water at different temperatures and for different lengths of time would break seed dormancy. Seeds were dipped for 60 seconds into water at 70, 80, 90 or 100 degrees C with 22 degrees C dips as a control. In another trial, seeds were dipped into 80 degrees C …


Taxonomic Revision Of True Morels (Morchella) In Canada And The United States, Michael Kuo, Damon R. Dewsbury, Kerry O'Donnell, M. Carol Carter, John David Moore, Stephen A. Renner, Jean-Marc Moncalvo, Stephen A. Canfield, Steven L. Stephenson, Andrew S. Methven, Thomas J. Volk Apr 2012

Taxonomic Revision Of True Morels (Morchella) In Canada And The United States, Michael Kuo, Damon R. Dewsbury, Kerry O'Donnell, M. Carol Carter, John David Moore, Stephen A. Renner, Jean-Marc Moncalvo, Stephen A. Canfield, Steven L. Stephenson, Andrew S. Methven, Thomas J. Volk

Faculty Research & Creative Activity

Recent molecular phylogenetic studies have revealed the existence of at least 50 species of Morchella worldwide and demonstrated a high degree of continental endemism within the genus. Here we describe 19 phylogenetic species of Morchella from North America, 14 of which are new (M. diminutiva, M. virginiana, M. esculentoides, M. prava, M. cryptica, M. frustrata, M. populiphila, M. sextelata, M. septimelata, M. capitata, M. importuna, M. snyderi, M. brunnea and M. septentrionalis). Existing species names (M. rufobrunnea, M. tomentosa, M. punctipes and M. angusticeps) are applied to four phylogenetic species, and formal description of one species (M. sp. "Mel-8") is …


Trehalose Transporter From African Chironomid Larvae Improves Desiccation Tolerance Of Chinese Hamster Ovary Cells, Nilay Chakraborty, Michael A. Menze, Heidi Elmoazzen, Halong Vu, Martin Yarmush, Steven C. Hand, Mehmet Toner Apr 2012

Trehalose Transporter From African Chironomid Larvae Improves Desiccation Tolerance Of Chinese Hamster Ovary Cells, Nilay Chakraborty, Michael A. Menze, Heidi Elmoazzen, Halong Vu, Martin Yarmush, Steven C. Hand, Mehmet Toner

Faculty Research & Creative Activity

Dry preservation has been explored as an energy-efficient alternative to cryopreservation, but the high sensitivity of mammalian cells to desiccation stress has been one of the major hurdles in storing cells in the desiccated state. An important strategy to reduce desiccation sensitivity involves use of the disaccharide trehalose. Trehalose is known to improve desiccation tolerance in mammalian cells when present on both sides of the cell membrane. Because trehalose is membrane impermeant the development of desiccation strategies involving this promising sugar is hindered. We explored the potential of using a high-capacity trehalose transporter (TRET1) from the African chironomid Polypedilum vanderplanki[21] …


Taxonomic Revision Of True Morels (Morchella) In Canada And The United States, Michael Kuo, Damon Dewsbury, Kerry O'Donnell, M. Carter, John Moore, Stephen Renner, Jean-Marc Moncalvo, Stephen Canfield, Steven Stephenson, Andrew Methven, Thomas Volk Apr 2012

Taxonomic Revision Of True Morels (Morchella) In Canada And The United States, Michael Kuo, Damon Dewsbury, Kerry O'Donnell, M. Carter, John Moore, Stephen Renner, Jean-Marc Moncalvo, Stephen Canfield, Steven Stephenson, Andrew Methven, Thomas Volk

Faculty Research & Creative Activity

Recent molecular phylogenetic studies have revealed the existence of at least 50 species of Morchella worldwide and demonstrated a high degree of continental endemism within the genus. Here we describe 19 phylogenetic species of Morchella from North America, 14 of which are new (M. diminutiva, M. virginiana, M. esculentoides, M. prava, M. cryptica, M. frustrata, M. populiphila, M. sextelata, M. septimelata, M. capitata, M. importuna, M. snyderi, M. brunnea and M. septentrionalis). Existing species names (M. rufobrunnea, M. tomentosa, M. punctipes and M. angusticeps) are applied to four phylogenetic species, and formal description of one species (M. sp. "Mel-8") is …


Effectiveness And Utility Of Acoustic Recordings For Surveying Tropical Birds, Antonio Celis-Murillo, Jill Deppe, Michael Ward Jan 2012

Effectiveness And Utility Of Acoustic Recordings For Surveying Tropical Birds, Antonio Celis-Murillo, Jill Deppe, Michael Ward

Faculty Research & Creative Activity

Although acoustic recordings have recently gained popularity as an alternative to point counts for surveying birds, little is known about the relative performance of the two methods for detecting tropical bird species across multiple vegetation types. During June and July 2008, we collected species detection/nondetection data to compare the performance of a quadraphonic acoustic recording system and point counts for estimating species richness and composition and detection probabilities of 15 rare, moderately common, and common tropical bird species across six structurally distinct vegetation types (coastal dune scrub, mangrove, low-stature deciduous thorn forest, early and late successional medium-stature semievergreen forest, and …


Sequencing And Phylogenetic Analysis Of The Wsp Gene Of Wolbachia In Three Geographic Populations Of An Oak Gall Wasp, Andricus Mairei (Hymenoptera: Cynipidae), From Hunan, South China, Xiao-Hui Yang, Dao-Hong Zhu, Zhiwei Liu, Ling Zhao Jan 2012

Sequencing And Phylogenetic Analysis Of The Wsp Gene Of Wolbachia In Three Geographic Populations Of An Oak Gall Wasp, Andricus Mairei (Hymenoptera: Cynipidae), From Hunan, South China, Xiao-Hui Yang, Dao-Hong Zhu, Zhiwei Liu, Ling Zhao

Faculty Research & Creative Activity

To understand the effects of Wolbachia in Andricus mairei Kieffer , an oak gall wasp ( Cynipini, Cynipidae) that forms clusters of up to 30 monothalamous galls in the catkins of Quercus glandulifera var. brevipetiolata Nakai, we examined the presence and infection frequency of Wolbachia in three widely separated geographic populations of A. mairei in Hunan Province, South China, using polymerase chain reaction and sequence determination of the wsp gene of Wolbachia from the three populations. Our survey results showed that Wolbachia infection rates were unusually high in the three test populations : 100% for the male wasps from all …


Size Assortment In Mixed-Species Groups Of Juvenile-Phase Striped Parrotfish (Scarus Iserti) In The Bahamas, Paul Switzer, Daniel Quinn Jan 2012

Size Assortment In Mixed-Species Groups Of Juvenile-Phase Striped Parrotfish (Scarus Iserti) In The Bahamas, Paul Switzer, Daniel Quinn

Faculty Research & Creative Activity

Striped parrotfish (Scarus iserti) often form heterospecific groups with other reef fishes. In this study, we examined the species and body size composition of these groups on reefs in The Bahamas. Groups averaged approximately 4 S. iserti and 2 associated species, with surgeonfish (Acanthurus chirurgus and A. bahianus), slippery dick (Halichoeres bivittatus), and bluehead wrasse (Thalassoma bifasciatum) as the most common associates. Fewer groups than expected had only 1 associate; groups with 3 or more associates were more common than expected. Both the S. iserti and associated species tended to be closely sizematched within a group, perhaps due to benefits …


Acute Effects Of Antagonist Stretching On Jump Height, Torque, And Electromyography Of Agonist Musculature, John B. Sandberg, Dale R. Wagner, Jeffrey Willardson, Gerald Aparecido Smith Jan 2012

Acute Effects Of Antagonist Stretching On Jump Height, Torque, And Electromyography Of Agonist Musculature, John B. Sandberg, Dale R. Wagner, Jeffrey Willardson, Gerald Aparecido Smith

Faculty Research and Creative Activity

Although there has been substantial research on the acute effects of static stretching on subsequent force and power development, the outcome after stretching of the antagonist musculature has not been examined. The purpose of this study was to investigate the effects of static stretching of antagonist musculature on multiple strength and power measures. Sixteen trained men were tested for vertical jump height and isokinetic peak torque production during knee extension at 60°.s (SlowKE) and 300°.s (FastKE). Electromyography was recorded for the vastus lateralis and the biceps femoris muscles during isokinetic knee extension. Subjects performed these tests in a randomized counterbalanced …


Isolation And Characterization Of Galactinol Synthases From Hybrid Poplar, Faride Unda, Thomas Canam, Lindsay Preston, Shawn D. Mansfield Jan 2012

Isolation And Characterization Of Galactinol Synthases From Hybrid Poplar, Faride Unda, Thomas Canam, Lindsay Preston, Shawn D. Mansfield

Faculty Research & Creative Activity

The raffinose family of oligosaccharides (RFOs) serve as transport carbohydrates in the phloem, storage compounds in sink tissues, and putative biological agents to combat both abiotic and biotic stress in several plant species. To investigate further the functional roles of this class of compounds in trees, two cDNAs encoding galactinol synthase (GolS, EC 2.4.1.123), which catalyses the first step in the biosynthesis of RFOs, were identified and cloned from hybrid poplar (Populus alba3grandidentata). Phylogenetic analyses of the Populus GolS isoforms with other known GolS proteins suggested a putative role for these enzymes during biotic or abiotic stress in hybrid poplar. …


Effectiveness And Utility Of Acoustic Recordings For Surveying Tropical Birds, Antonio Celis-Murillo, Jill L. Deppe, Michael P. Ward Jan 2012

Effectiveness And Utility Of Acoustic Recordings For Surveying Tropical Birds, Antonio Celis-Murillo, Jill L. Deppe, Michael P. Ward

Faculty Research & Creative Activity

Although acoustic recordings have recently gained popularity as an alternative to point counts for surveying birds, little is known about the relative performance of the two methods for detecting tropical bird species across multiple vegetation types. During June and July 2008, we collected species detection/nondetection data to compare the performance of a quadraphonic acoustic recording system and point counts for estimating species richness and composition and detection probabilities of 15 rare, moderately common, and common tropical bird species across six structurally distinct vegetation types (coastal dune scrub, mangrove, low-stature deciduous thorn forest, early and late successional medium-stature semievergreen forest, and …


The Swimming Behavior Of The Aquatic Larva Of Neoneuromus Ignobilis (Megaloptera: Corydalidae: Corydalinae)., Cheng-Quan Cao, Zhiwei Liu, Shen-Zhi Chen, Chao Tong Jan 2012

The Swimming Behavior Of The Aquatic Larva Of Neoneuromus Ignobilis (Megaloptera: Corydalidae: Corydalinae)., Cheng-Quan Cao, Zhiwei Liu, Shen-Zhi Chen, Chao Tong

Faculty Research & Creative Activity

In order to explore the pattern and significance of swimming, through photos and videos we observed and recorded the swimming behavior of the aquatic larvae of Megaloptera in detail for the first time using the endemic Chinese species Neoneuromus ignobilis Navas, 1932 as the test insect, which were collected from the Dadu River and reared in nature-simulated environments. Four swimming postures are recognized and described herein in detail, i. e., vertical, parallel, back and side swimming, and these postures were used by the larvae disproportionately, with a frequency of 89.08%, 5. 49%, 4. 40% and 0. 61% , respectively. The …


The Swimming Behavior Of The Aquatic Larva Of Neoneuromus Ignobilis (Megaloptera: Corydalidae: Corydalinae)., Cheng-Quan Cao, Zhiwei Liu, Shen-Zhi Chen, Chao Tong Jan 2012

The Swimming Behavior Of The Aquatic Larva Of Neoneuromus Ignobilis (Megaloptera: Corydalidae: Corydalinae)., Cheng-Quan Cao, Zhiwei Liu, Shen-Zhi Chen, Chao Tong

Faculty Research & Creative Activity

In order to explore the pattern and significance of swimming, through photos and videos we observed and recorded the swimming behavior of the aquatic larvae of Megaloptera in detail for the first time using the endemic Chinese species Neoneuromus ignobilis Navas, 1932 as the test insect, which were collected from the Dadu River and reared in nature-simulated environments. Four swimming postures are recognized and described herein in detail, i. e., vertical, parallel, back and side swimming, and these postures were used by the larvae disproportionately, with a frequency of 89.08%, 5. 49%, 4. 40% and 0. 61% , respectively. The …


Comparison Of Nutritive Value, Cost, Viscosity And Acceptability Among Developed Oral Nutritional Supplements And Commercially-Prepared Supplements, Melanie Burns, Christa R. Huxel, Kathleen A. O'Rourke, Linda D. Simpson Jan 2012

Comparison Of Nutritive Value, Cost, Viscosity And Acceptability Among Developed Oral Nutritional Supplements And Commercially-Prepared Supplements, Melanie Burns, Christa R. Huxel, Kathleen A. O'Rourke, Linda D. Simpson

Faculty Research & Creative Activity until 2018 (FCS)

No abstract provided.


A Tale Of Two Tournaments: The Red Cross Games And The Early Ncaa-Nit Relationship, Chad R. Carlson Jan 2012

A Tale Of Two Tournaments: The Red Cross Games And The Early Ncaa-Nit Relationship, Chad R. Carlson

Faculty Research and Creative Activity

The purpose of this article is to explore the relationship between the National Invitational Tournament (NIT) and National Collegiate Athletic Association (NCAA). To do so, the author explores the Red Cross War Benefit Games, which pitted the champions of the two tournaments against one another, with the proceeds benefiting the Red Cross. These contests represented the only times the two tournaments or their teams interacted. The author explores the Games’ significance and the manner in which they helped propel the NCAA men’s basketball tournament to preeminent status.