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2006

Morphology

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Revision Of The Males Of The Hydrospyche Scalaris Group In North America (Trichoptera: Hydropsychidae), James Korecki Dec 2006

Revision Of The Males Of The Hydrospyche Scalaris Group In North America (Trichoptera: Hydropsychidae), James Korecki

All Theses

The genus Hydrospsyche Pictet sensu stricto in North America is divided into three species groups, the Hydrospyche cuanis Ross Group Ross, the Hydropsyche depravata Hagen Group Ross, and the Hydropsyche scalaris Hagen Group Banks. Thirty-one of thirty-six described species are recognized in the Hydropsyche scalaris Group. Examination of adult males resulted in 5 junior subjective synonyms and one possible new species based on a single exemplar from Sevier County, Utah. Hydropsyche bidens Ross 1938, H. orris Ross 1938, and H. alvata Denning 1949 are junior synonyms of Hydropsyche incommoda Hagen 1861. Hydrospyche rossi Flint, Voshell and Parker, 1979 and H. …


Phylogeny Of Family Limnephilidae (Insecta: Trichoptera) With Emphasis On Tribe Limnephilini (Subfamily Limnephilinae), Tatyana Vshivkova Dec 2006

Phylogeny Of Family Limnephilidae (Insecta: Trichoptera) With Emphasis On Tribe Limnephilini (Subfamily Limnephilinae), Tatyana Vshivkova

All Dissertations

Morphological characters of adults and immature stages of Limnephilidae were analyzed with modern phylogenetic techniques, including traditionally used characters and some that have been poorly investigated or never studied. For the first time, monophyly is inferred for the following nominotypical taxa: superfamily Limnephiloidea, family Limnephilidae, subfamily Limnephilinae, tribe Limnephilini, and Limnephilus sensu stricto. Some other higher taxa are distinguished based on high bootstrap support, unreversed synapomorphies, and/or topography, including a new family-group category for Trichoptera, 'Branch,' more inclusive than the family category and less inclusive than the superfamily category. These new taxa in Limnephiloidea are as follows: Brachycentrida New Branch …


Morphological Changes In The Oviduct Of Culling Replacement Gilts, Paisan Tienthai, Kriengyot Sajjarengpong, Padet Talummuk Dec 2006

Morphological Changes In The Oviduct Of Culling Replacement Gilts, Paisan Tienthai, Kriengyot Sajjarengpong, Padet Talummuk

The Thai Journal of Veterinary Medicine

The aim of this study was to investigate the morphological changes of the oviduct from 30 culling replacement gilts and 6 control sows. Blood samples and female genital organs were taken immediately after slaughter. Post-mortem examinations were made on the genital organs and oviductal samples, i.e. utero-tubal junction (UTJ), isthmus and ampulla, were collected and fixed for histological analysis. Observations indicated that the reasons for culling the gilts were 'no estrus' (68%) and 'repeat breeding' (32%). The greatest pathological changes (67%) were found in repeat breeding gilts, whereas 52% of no estrous gilts were at prepubertal phase. The female hormonal …


Tribo-Surface Characteristics Of Al-B4c And Al-Sic Composites Worn Under Different Contact Pressures Sep 2006

Tribo-Surface Characteristics Of Al-B4c And Al-Sic Composites Worn Under Different Contact Pressures

A.S. Md Abdul Haseeb

Tribo-surface characteristics of two aluminium metal matrix composites (Al-MMC) of compositions Al-13 vol%B4C and Al-13 vol%SiC sliding against a commercial phenolic brake pad have been investigated under dry conditions. The wear tests were carried out using a pin-on-disc type apparatus at a linear speed of 1.62 m s-1 under contact pressures ranging from 0.75 to 3.00 MPa. The coefficient of friction was recorded on line. Wear rates were calculated from mass loss measurements. Scanning electron microscope equipped with energy dispersive X-ray spectroscopy was used to examine the tribo-surface. It is found that wear rate of both composites increases with increasing …


Testing An Ecophysiological Mechanism Of Morphological Plasticity In Pupfish And Its Relevance To Conservation Efforts For Endangered Devils Hole Pupfish, Sean C. Lema, Gabrielle A. Nevitt Sep 2006

Testing An Ecophysiological Mechanism Of Morphological Plasticity In Pupfish And Its Relevance To Conservation Efforts For Endangered Devils Hole Pupfish, Sean C. Lema, Gabrielle A. Nevitt

Biological Sciences

Imperiled species that have been translocated or established in captivity can show rapid alterations in morphology and behavior, but the proximate mechanisms of such phenotypic changes are rarely known. Devils Hole pupfish (Cyprinodon diabolis) are endemic to a single desert pool and are characterized by a small body, large head and eyes, and lack of pelvic fins. To lessen the risk of extinction, additional populations of C. diabolis were established in artificial refuges. Yet, pupfish in these refuges rapidly shifted to a larger body, smaller head and eyes, and greater body depth. Here we examined how food availability …


Reproductive Isolation In A Threespine Stickleback Hybrid Zone, F. C. Jones, C. Brown, J. M. Pemberton, V. A. Braithwaite Sep 2006

Reproductive Isolation In A Threespine Stickleback Hybrid Zone, F. C. Jones, C. Brown, J. M. Pemberton, V. A. Braithwaite

Veterinary Science and Medicine Collection

In many estuarine sites, morphological and genetic differences between anadromous and freshwater threespine sticklebacks are maintained despite breeding in sympatry. Here, we investigate the maintenance of this morphological divergence in a natural hybrid zone in the River Tyne, Scotland. We provide a morphological description of the hybrid zone, and using a Bayesian MCMC approach, identified distinct anadromous and freshwater genetic clusters. Anadromous and freshwater sticklebacks breed in spatial and temporal sympatry in the lower reaches of the River Tyne. The frequency of hybrids within these sites (33%) indicates prezygotic isolation is not complete, and suggests that assortative mating is not …


Lung Circulation Modeling: Status And Prospect, Anne V. Clough, Said H. Audi, Robert C. Molthen, Gary S. Krenz Apr 2006

Lung Circulation Modeling: Status And Prospect, Anne V. Clough, Said H. Audi, Robert C. Molthen, Gary S. Krenz

Biomedical Engineering Faculty Research and Publications

Mathematical modeling has been used to interpret anatomical and physiological data obtained from metabolic and hemodynamic studies aimed at investigating structure-function relationships in the vasculature of the lung, and how these relationships are affected by lung injury and disease. The indicator dilution method was used to study the activity of redox processes within the lung. A steady-state model of the data was constructed and used to show that pulmonary endothelial cells may play an important role in reducing redox active compounds and that those reduction rates can be altered with oxidative stress induced by exposure to high oxygen environments. In …


Spelling Development In Young School Age Children, Kelly M. Fawcett Mar 2006

Spelling Development In Young School Age Children, Kelly M. Fawcett

USF Tampa Graduate Theses and Dissertations

Previous research investigations in the area of spelling development have adopted

two approaches, the broad approach and the narrow approach. The broad approach

suggests that spelling develops in sequential stages whereas the narrow approach focuses

on individual linguistic patterns. However, research findings have revealed that children’s

spellings do not exhibit errors pertaining to specifically one stage or reflecting one

linguistic element, yet a research void exists in resolving how these two approaches

might intermix.

This study examined the spelling errors of typically developing children in first

through fourth grades (N = 400) to determine the quantitative and qualitative differences

in …


The Noao Fundamental Plane Survey - Iii. Variations In The Stellar Populations Of Red-Sequence Galaxies From The Cluster Core To The Virial Radius, Russell J. S. Smith, Michael J. Hudson, John R. Lucey, Jenica E. Nelan, Gary A. Wegner Feb 2006

The Noao Fundamental Plane Survey - Iii. Variations In The Stellar Populations Of Red-Sequence Galaxies From The Cluster Core To The Virial Radius, Russell J. S. Smith, Michael J. Hudson, John R. Lucey, Jenica E. Nelan, Gary A. Wegner

Dartmouth Scholarship

We analyse absorption line-strength indices for ~3000 red-sequence galaxies in 94 nearby clusters, to investigate systematic variations of their stellar content with location in the host cluster. The data are drawn from the NOAO Fundamental Plane Survey. Our adopted method is a generalization of that introduced by Nelan et al. to determine the global age-mass and metallicity-mass relations from the same survey. We find strong evidence for a change in galaxy properties, at fixed mass, over a range from the cluster centre to the virial radius, R_200. For example, red-sequence galaxies further out in the clusters have weaker Mgb5177 (at …


Phylogenetic Analyses And Biogeography Of Trilliaceae, Susan B. Farmer Jan 2006

Phylogenetic Analyses And Biogeography Of Trilliaceae, Susan B. Farmer

Aliso: A Journal of Systematic and Floristic Botany

Trilliaceae are plants of North Temperate forests with a holarctic distribution and a high degree of endemism. Molecular phylogenetic analyses are presented in order to examine the tribal, generic, and species-level classification of the family. These molecular studies, and earlier morphological studies, support the placement of the genus Pseudotrillium as basal in the family and sister to the tribes Trillieae and Parideae, which are monophyletic sister groups. Trillidium (Trillium) govanianum provides an unresolved problem: morphologically it is included within Parideae, but molecular data place it within Trillium as sister to T. undulatum. Within tribe Trillieae, clades are …


Patterns Of Floral Structure And Orientation In Japonolirion , Narthecium, And Tofieldia, Margarita V. Remizowa, Dmitry D. Sokoloff, Paula J. Rudall Jan 2006

Patterns Of Floral Structure And Orientation In Japonolirion , Narthecium, And Tofieldia, Margarita V. Remizowa, Dmitry D. Sokoloff, Paula J. Rudall

Aliso: A Journal of Systematic and Floristic Botany

Floral evolution requires reassessment in basal monocots, including species formerly assigned to Melanthiaceae, in the light of recent developments in the molecular phylogenetics of monocots. We have investigated flowers of Tofieldia (Tofieldiaceae), Japonolirion (Petrosaviaceae), and Narthecium (Nartheciaceae). We confirm Engler's (1888) hypothesis that orientation of lateral flowers in monocots is dependent on presence and position of additional phyllomes on the pedicel. The type of floral orientation that occurs in Tofieldia is unusual for monocots, since the additional phyllomes are represented by calyculus scales rather than a bracteole, and the outer whorl tepals are initiated alternating with the calyculus scales. In …


Properties Of New York/New Jersey Harbor Sediments, K. W. Jones, Huan Feng, E. A. Stren, U. Neuhäusler, J. Osán, N. Marinkovic, Z. Song Jan 2006

Properties Of New York/New Jersey Harbor Sediments, K. W. Jones, Huan Feng, E. A. Stren, U. Neuhäusler, J. Osán, N. Marinkovic, Z. Song

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

Sediments found in waterways around the world may contain toxic compounds of anthropogeilic origin that can harm the environment and human health. As a result, it is often necessary to remove them and find disposal methods that are environmentally and economically acceptable. Here, we report on results obtained in an experimental program to characterize the nature of the sediment contamination. The objective was to gain a better understanding of the properties of the sediments to develop better methods for understanding the fate and transport of the contaminants and for improving methods for their removal from the sediments. Our investigations made …


Saponaria Bargyliana Gombault (Caryophyllaceae): A New Record For Turkey And Analysis Of Its Morphological Characters With Related Species, Bi̇rol Mutlu Jan 2006

Saponaria Bargyliana Gombault (Caryophyllaceae): A New Record For Turkey And Analysis Of Its Morphological Characters With Related Species, Bi̇rol Mutlu

Turkish Journal of Botany

Previously, Saponaria bargyliana Gombault was known only from its type locality, the north of Syria in the Nosaïris mountains, which was published by Gombault in 1962. During a field trip in June 2002 to Erzin (Hatay) district, the species was collected for the second time from a new locality far from its locus classicus. Thus, this species was described as a new record for the flora of Turkey. The description of this species was expanded and its geographical distribution, habitat, flowering time and conservation status are discussed. Quantitative and qualitative analysis of Saponaria bargyliana and closely related species is discussed. …


Habitat Use By Nekton In A Saltmarsh Estuary Along A Stream-Order Gradient In Northeastern Barataria Bay, Louisiana, Pablo Granados-Dieseldorff Jan 2006

Habitat Use By Nekton In A Saltmarsh Estuary Along A Stream-Order Gradient In Northeastern Barataria Bay, Louisiana, Pablo Granados-Dieseldorff

LSU Master's Theses

Mesohaline estuarine regions in Louisiana play an important role in coastal ecosystems. To begin to understand how nektonic species and communities respond to environmental variables before habitat modification, I examined patterns of habitat use by fishes and decapod crustaceans in a seemingly pristine mesohaline system that drains into Bay Batiste, southeastern Louisiana. The study area was focused on a relatively unaltered core saltmarsh complex drained by intertidal and subtidal streams and it was representative of a larger surrounding system in terms of nekton community structure and associated environmental variables. Stratified monthly sampling (February – November 2004) along a stream-order gradient …


Morphological And Palynological Investigation On Silene Gigantea L. Var. Gigantea And Silene Behen L. (Caryophyllaceae) Distributed In Western Anatolia And Northern Cyprus, Kemal Yildiz Jan 2006

Morphological And Palynological Investigation On Silene Gigantea L. Var. Gigantea And Silene Behen L. (Caryophyllaceae) Distributed In Western Anatolia And Northern Cyprus, Kemal Yildiz

Turkish Journal of Botany

A comparative investigation was carried out on the morphology and palynology of Silene gigantea L. var. gigantea and Silene behen L. species of the family Caryophyllaceae distributed in Western Anatolia and Northern Cyprus. An examination conducted on S. gigantea var. gigantea revealed that the calyx length in Western Anatolian specimens was shorter than that of those from Northern Cyprus, that the basal petal blades of the Western Anatolian specimens did not have any ligula while those from Northern Cyprus did, and that the petal blades belonging to the specimens from Northern Cyprus demonstrated less clefting as compared to those from …


The Morphology And Anatomy Of Crocus Flavus Weston Subsp. Flavus (Iridaceae), Canan Özdemi̇r, Peli̇n Baran, Yurdanur Akyol Jan 2006

The Morphology And Anatomy Of Crocus Flavus Weston Subsp. Flavus (Iridaceae), Canan Özdemi̇r, Peli̇n Baran, Yurdanur Akyol

Turkish Journal of Botany

The morphological and anatomical characteristics of Crocus flavus Weston subsp. flavus (Iridaceae) were investigated. Cross-sections of the root, stem, corm and leaf parts of C. flavus subsp. flavus were examined and cross-sections of the root, stem and leaf demonstrated by illustrations. The corm-tunic is membranous, splitting into vertical fibres and lacking distinct horizontal rings at the base. The style is obscurely trilobed or slightly divided. These features are characteristic of C. flavus subsp. flavus. Differences such as shape of leaf keel and branching of style were determined by comparing the results obtained from this subspecies with the results obtained from …


The Contingent Meaning Of -Ex Brand Names In English, Laurel Smith Stvan Jan 2006

The Contingent Meaning Of -Ex Brand Names In English, Laurel Smith Stvan

Linguistics & TESOL Faculty Publications & Presentations

The –ex string found in English product and company names (e.g., Kleenex, Timex and Virex), is investigated to discover whether this ending has consistent meaning across coined words and to observe any constraints on its attachment and interpretation. Seven hundred and ninety-three –exbrand name types were collected and examined, derived from American English texts in the Brown and Frown corpora as well as over 600 submissions to the US Patent and Trademark Office's Trademark Electronic Search System database (TESS); American native English speakers were also surveyed to assess interpretations of –ex meaning in brands. Analysis of these coined terms reveals …


On Specimens Of Darevskia Armeniaca (Sauria: Lacertidae: Darevskia) Collected From Ardahan, Çeti̇n Ilgaz Jan 2006

On Specimens Of Darevskia Armeniaca (Sauria: Lacertidae: Darevskia) Collected From Ardahan, Çeti̇n Ilgaz

Turkish Journal of Zoology

Forty-seven Darevskia armeniaca specimens collected from 2 different localities in Ardahan were examined in terms of pholidosis characters, morphometric measurements and colour-pattern features. The 2 populations were differentiated from one another in terms of the number of supraciliar plates (left-right) (SCPa-SCPb), supralabial plates (left-right) (SRLa-SRLb) and transversal series of ventral plates (TVP) according to the results of the Mann-Whitney U test. An independent t-test based on morphometric measurements revealed significant differences in terms of the head index (HI) between the 2 populations. Regarding pholidosis characters, morphometric measurements and colour-pattern features, specimens collected from the 2 localities showed a similarity to …


Karyological And Some Morphological Characteristics Of Spalax Leucodon Nordmann, 1840 (Mammalia: Rodentia) Superspecies Around Kastamonu Province, Turkey, Mustafa Sözen, Murat Sevi̇ndi̇k, Ferhat Matur Jan 2006

Karyological And Some Morphological Characteristics Of Spalax Leucodon Nordmann, 1840 (Mammalia: Rodentia) Superspecies Around Kastamonu Province, Turkey, Mustafa Sözen, Murat Sevi̇ndi̇k, Ferhat Matur

Turkish Journal of Zoology

The karyotypes and morphology of 98 specimens of the subterranean mole rat Spalax leucodon Nordmann, 1840 across 18 localities in and around Kastamonu province were analysed. It was determined that S. leucodon has 2n = 54, NF = 72; 2n = 56, NF = 74; 2n = 58, NF = 74; 2n =60, NF = 74 in the populations from the Kastamonu region. According to these karyological findings based on chromosome morphology the diploid chromosome numbers of 2n = 56, 2n =58, and 2n = 60 determined here are new for Spalax leucodon in Turkey. Because diploid numbers of these …


Morphological And Biometrical Comparisons Of Mesocricetus Nehring, 1898 (Mammalia: Rodentia) Species Distributed In The Palaearctic Region, Nuri̇ Yi̇ği̇t, Ercüment Çolak, Rolf Gattermann, Karsten Neumann, Şaki̇r Özkurt, Muhammed Mouradi Gharakheloo, Peter Fritzsche, Reyhan Çolak Jan 2006

Morphological And Biometrical Comparisons Of Mesocricetus Nehring, 1898 (Mammalia: Rodentia) Species Distributed In The Palaearctic Region, Nuri̇ Yi̇ği̇t, Ercüment Çolak, Rolf Gattermann, Karsten Neumann, Şaki̇r Özkurt, Muhammed Mouradi Gharakheloo, Peter Fritzsche, Reyhan Çolak

Turkish Journal of Zoology

Currently, 4 species, Mesocricetus auratus, Mesocricetus raddei, Mesocricetus newtoni, and Mesocricetus brandti of the genus Mesocricetus are accepted as the valid taxa based on karyotype and morphologic features. A potential fifth species, Mesocricetus nigriculus, is under dispute and is currently listed as a subspecies of M. raddei, along with Mesocricetus raddei raddei and Mesocricetus raddei avaricus. UPGMA cluster analyses performed with biometrical measures confirm, only partially, the common separation of Mesocricetus hamsters into a Transcaucasian group with Mesocricetus newtoni, Mesocricetus brandti, and Mesocricetus auratus, and a Ciscaucasian group including the M. raddei subspecies. The status of M. nigriculus could not …


The Morphological Analysis Of Mus Domesticus And Mus Macedonicus (Mammalia: Rodentia) In Turkey, Ercüment Çolak, Nuri̇ Yi̇ği̇t, Mustafa Sözen, Reyhan Çolak, Şaki̇r Özkurt, Tolga Kankiliç, Teoman Kankiliç Jan 2006

The Morphological Analysis Of Mus Domesticus And Mus Macedonicus (Mammalia: Rodentia) In Turkey, Ercüment Çolak, Nuri̇ Yi̇ği̇t, Mustafa Sözen, Reyhan Çolak, Şaki̇r Özkurt, Tolga Kankiliç, Teoman Kankiliç

Turkish Journal of Zoology

We examined 529 specimens of Mus domesticus and Mus macedonicus from Turkey, in terms of their morphological, bacular, and phallic aspects. The zygomatic index (ZI) varied from 0.32 to 0.47 in M. domesticus, and 0.60 to 0.85 in M. macedonicus. The head plus body length/tail length (H+B/T) index varied from 0.87 to 1.05 in M. domesticus, and 1.08 to 1.78 in M. macedonicus. The zygomatic plate is straight or convex in M. domesticus and M. macedonicus. The ventral wing of the parietal is generally tortuous in M. domesticus and is protruding or straight in M. macedonicus. The anterolabial cusp on …


New Localities For Leptotyphlops Macrorhynchus (Jan, 1862) (Reptilia: Leptotyphlopidae) In Turkey, İsmai̇l Hakki Uğurtaş, Murat Sevi̇nç, Mehmet Öz, Rahşen S. Kaya Jan 2006

New Localities For Leptotyphlops Macrorhynchus (Jan, 1862) (Reptilia: Leptotyphlopidae) In Turkey, İsmai̇l Hakki Uğurtaş, Murat Sevi̇nç, Mehmet Öz, Rahşen S. Kaya

Turkish Journal of Zoology

Four new localities of Leptotyphlops macrorhynchus (JAN, 1862) were recorded in Turkey. Two of the localities were found within the previously known distribution area on the east side of the Fırat River, and the other 2 were found on the west side. As a result, the distribution range of Leptotyphlops macrorhynchus has been extended. Information about the morphological features of the captured specimens is given.