Life Sciences Commons^™

Developing A Gene Specific Probe For Phosphoenolpyruvate Carboxykinase Mrna, Stephen M. Kuntz

Seton Hall University Dissertations and Theses (ETDs)

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Characterization Of A Membrane Bound Proteolytic Enzyme Of Rat Osteoblasts, Anthony M. Orrico

Seton Hall University Dissertations and Theses (ETDs)

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Proceedings Of The Symposium On The Status, Management, And Conservation Of The Species Alectoris, Black Francolin, Thrush, Quail, And Turtle Dove In The Mediterranean Region, Nicos Kassinis, Panicos Panayides

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Proceedings of the International Council for Game and Wildlife Conservation, Symposium on the Status, Management, and Conservation of the Species Alectoris, Black Francolin, Thrush, Quail, and Turtle Dove in the Mediterranean Region held Octobe 8-10, 1999 in Lemesos, Cyprus.

The Effect Of Different Warm-Downs On Heart Rate Recovery And Muscular Lactic Acid Removal, Alison Jean Perkins

Honors Theses

Competitive swimmers and coaches have had varying ideas about what exercises constitute an appropriate warm-down. However, there is much agreement about what a warm-down should achieve. A good warm-down should do three things. First, a warm-down should be successful in returning the swimmer's elevated heart rate to the resting heart rate level in a relatively short period of time. Second, the warm-down should flush lactic acid out of the muscles as quickly as possible, and restore blood lactate to baseline levels. Finally the warm-down should contribute to improved athletic performances.

In this experiment, it was expected that a decreasing intensity …

Establishing A Link Between Mapk Pathways And Hormones Signal Transduction In Plants, Marc Meulener

Honors Theses

Mitogen Activated Protein Kinase (MAPK) pathways are ubiquitous among eukaryotes, and are involved in the transduction of various extracellular signals. In mammals, three MAPK pathways have been identified, two of these respond to stress, and one can stimulate growth and differentiation. MAPKs have also been found in plants, and it has been suggested that a MAPK pathway may be involved in the signal transduction of auxin and cytokinin, two plant hormones that stimulate growth and differentiation. However, at this time, there is no conclusive evidence supporting this hypothesis. By studying the effect ofMAPKK's of both plant and animal origin in …

Modeling The Msx Parasite In Eastern Oyster (Crassostrea Virginica) Populations. Iii. Regional Application And The Problem Of Transmission, Eric N. Powell, John M. Klinck, Susan E. Ford, Eileen E. Hofmann, Stephen J. Jordon

CCPO Publications

A model of transmission for Haplosporidium nelsoni, the disease agent for MSX disease, is developed and applied to sites in Delaware Bay and Chesapeake Bay. The environmental factors that force the oyster population- H. nelsoni model are salinity, temperature, food, and total suspended solids. The simulated development of MSX disease was verified using 3 time series of disease prevalence and intensity: 1960 to 1970 and 1980 to 1990 for Delaware Bay, and 1980 to 1994 for Chesapeake Bay, and for a series of sites covering the salinity gradient in each bay. Additional simulations consider the implications of assumptions made …

Modeling The Msx Parasite In Eastern Oyster (Crassostrea Virginica) Populations. Ii. Salinity Effects, Michelle C. Paraso, Susan E. Ford, Eric N. Powell, Eileen E. Hofmann, John M. Klinck

CCPO Publications

An oyster population model coupled with a model for Haplosporidium nelsoni, the causative agent of the oyster disease MSX, was used with salinity time-series constructed from Delaware River flow measurements to study environmentally-induced variations in the annual cycle of this disease in Delaware Bay oyster populations. Model simulations for the lower Bay (high salinity) sire reproduced the annual cycle observed in lower Delaware Bay. Simulations at both upper Bay (low salinity) and lower Bay sites produced prevalences and intensities that were consistent with field observations. At all sites, low freshwater discharge resulted in increased disease levels, whereas high freshwater …

Modeling The Effects Of Doliolids On The Plankton Community Structure Of The Southeastern Us Continental Shelf, A. G. Edward Haskell, Eileen E. Hofmann, Gustav-Adolf Paffenhofer, Peter G. Verity

CCPO Publications

A model of the lower trophic levels that consists of a system of coupled ordinary differential equations was developed to investigate the time-dependent behavior of doliolid populations associated with upwelling features on the outer southeastern US continental shelf. Model equations describe the interactions of doliolids with two phytoplankton size fractions, five copepod developmental stages and a detrital pool. Additional equations describe nitrate and ammonia. Model dynamics are based primarily upon data obtained from field and laboratory experiments for southeastern US continental shelf plankton populations. Variations on a reference simulation, which represents average upwelling conditions without doliolids, were carried out to …

The Biotech Century (Book Review), Philip A. Reed

STEMPS Faculty Publications

No abstract provided.

Substrate And Enzyme Profile Of Fast And Slow Skeletal Muscle Fibers In Rhesus Monkeys, Varvara P. Grichko, Gwen J. Gettelman, Jeffrey Widrick, Robert H. Fitts

Biological Sciences Faculty Research and Publications

Results from the Russian Cosmos program suggest that the rhesus monkey is an excellent model for studying weightlessness-induced changes in muscle function. Consequently, the purpose of this investigation was to establish the resting levels of selected substrate and enzymes in individual slow- and fast-twitch muscle fibers of the rhesus monkey. A second objective was to determine the effect of an 18-day sit in the Spacelab experiment-support primate facility [Experimental System for the Orbiting Primate (ESOP)]. Muscle biopsies of the soleus and medial gastrocnemius muscles were obtained 1 mo before and immediately after an 18-day ESOP sit. The biopsies were freeze-dried, …

Role Of Farming Women In The Communities Of Puculpala, Llulluchi, And Guzo, Quimiag, Chimborazo, Agusta Filomena Coello Arguello

Theses and Dissertations

In the Ecuadorian society there is a pronounced difference in the distribution of work between men and women. In the Ecuadorian society the man is dominant and the woman is seen as a free form of strenuous and excessive labor, who often goes without pay. The woman herself minimizes her own contribution in the production process, thereby magnifying this culture distinction. The division of work related responsibilities, through gender distinctions, has given women more tasks to complete, in addition to those generally reserved for females (taking care of the children, the animals and various household chores). Women also tend to …

Limitation Of Algal Growth By Iron Deficiency In The Australian Subantarctic Region, Peter N. Sedwick, Giacomo R. Ditullio, David A. Hutchins, Philip W. Boyd, F. Brian Griffiths, A. Clive Crossley, Thomas W. Trull, Bernard Queguiner

OES Faculty Publications

In March 1998 we measured iron in the upper water column and conducted iron- and nutrient-enrichment bottle-incubation experiments in the open-ocean Subantarctic region southwest of Tasmania, Australia. In the Subtropical Convergence Zone (∼42°S, 142°E), silicic acid concentrations were low (< 1.5μM) in the upper water column, whereas pronounced vertical gradients in dissolved iron concentration (0.12-0.84 nM) were observed., presumably reflecting the interleaving of Subtropical and Subantarctic waters, and mineral aerosol input. Results of a bottle-incubation experiment performed at this location indicate that phytoplankton growth rates were limited by iron deficiency within the iron-poor layer of the euphotic zone. In the Subantarctic water mass (∼46.8°S, 142°E), low concentrations of dissolved iron (0.05-0.11nM) and silicic acid (< 1μM) were measured throughout the upper water column, and our experimental results indicate that algal growth was limited by iron deficiency. These observations suggest that availability of dissolved iron is a primary factor limiting phytoplankton growth over much of the Subantarctic Southern Ocean in the late summer and autumn.

Resource Allocation And Sucrose Mobilization In Light Limited Eelgrass Zostera Marina, Teresa Alcoverro, Richard C. Zimmerman, Donald G. Kohrs, Randall S. Alberte

OES Faculty Publications

This study evaluated the ability of Zostera marina L. (eelgrass) to balance the daily photosynthetic deficit by mobilization of carbon reserves stored in below-ground tissues during a period of extreme winter light limitation. A quantitative understanding of the mobilization process and its limitations is essential to the development of robust models predicting minimum light levels required to maintain healthy seagrass populations. Plants were grown in running seawater tanks under 2 light regimes. One treatment was provided with 2 h irradiance-saturated photosynthesis (H_sat) to produce severe Light Limitation, while control plants were grown under 7 h H_sat, …

Comparative Study Of Selenium Requirements Of Three Phytoplankton Species: Gymnodinium Catenatum, Alexandrium Minutum (Dinophyta) And Chaetoceros Cf. Tenuissimus (Bacillariophyta, Martina A. Doblin, Susan I. Blackburn, Gustaaf M. Hallegraeff

OES Faculty Publications

This study investigated the selenium (Se) requirements of three phytoplankton species which commonly bloom in southern Australian estuaries. The present study showed that the toxic dinoflagellate Gymnodinium catenatum Graham had an obligate requirement for Se (IV) in culture. After two transfers (~ 4 weeks ≈ 7 generations) in Se-deficient seawater medium, this phytoplankton species exhibited a decline in growth rate (25%) and biomass yield (90%), while complete cessation of cell division occurred under prolonged (8 weeks ≈ 12 generations) Se starvation. Addition of 10^-9-10^-7 M H₂SeO₃ to nutrient-enriched seawater medium resulted in increased G.catenatum …

Detection Of Ehrlichia Chaffeensis In Ticks Of The Georgia Coast And Barrier Islands Using Polymerase Chain Reaction, John Edward Whitlock

College of Graduate Studies: Theses & Dissertations (1964–2006)

Human monocytic ehrlichiosis (HME) is an emerging, zoonosis transmitted to mammals by ixodid ticks. Prevalence of infected ticks and distribution of infection foci indicate relative risk of human exposure to ehrlichiosis and may be influenced by factors such as geographic isolation and human disturbance. To test this, individual and pooled lone star ticks, Amblyomma americanum (L.), collected from 3 populations from the coast and barrier islands of Georgia were screened for Ehrlichia chaffeensis Anderson, Dawson, Jone, and Wilson, the agent of HME. A species-specific, nested polymerase chain reaction (PGR) assay was used to amplify a 572 base pair fragment of …

Growth And Yield-Per-Recruit Modeling Of Spot (Leiostomus Xanthurus) In The Chesapeake Bay, And A Comparison Of Biological Reference Points, Kevin Ray Piner

Biological Sciences Theses & Dissertations

Spot were sampled from the Chesapeake Bay commercial fishery from 1993–1995 to determine if spot are overfished. Transversely sectioned otoliths were determined to be the most appropriate structure for ageing spot. It was determined that spot have a high natural mortality rate (M = 0.9) and fast growth (K = 0.6). This combination of M and K makes spot relatively impervious to growth overfishing as determined by yield-per-recruit modeling. Because spot are nearly impervious to growth overfishing, management thresholds based on yield-per-recruit modeling may be inappropriate. In addition, the combination of high M and fast K makes it possible to …

Search For Exchange-Antisymmetric Two-Photon States, D. De Mille, D. Budker, N. Derr, E. Deveney

Biological Sciences: Faculty Publications

Atomic two-photon J = 0 ↔ J′ = 1 transitions are forbidden for photons of the same energy. This selection rule is related to the fact that photons obey Bose-Einstein statistics. We have searched for small violations of this selection rule by studying transitions in atomic Ba. We set a limit on the probability v that photons are in exchange-antisymmetric states: v < 1.2 × 10-7.

Hyperinsulinism Caused By Paternal-Specific Inheritance Of A Recessive Mutation In The Sulfonylurea-Receptor Gene, Benjamin Glaser, Fergus Ryan, Marc Donath, Heddy Landau, Charles Stanley, Lester Baker, David Barton, Paul Thornton

Articles

Neonatal hyperinsulinism (HI) is a genetic disorder of pancreatic b-cells characterized by failure to suppress insulin secretion in the presence of hypoglycemia, resulting in brain damage or death if not adequately treated. Germline mutations in four genes have been associated with HI. Some patients have focal regions of b-cell proliferation (focal HI). Seventy HI probands in whom at least one S U R - 1 mutation was identified were studied. Clinical data from patients with two S U R - 1 mutant alleles were compared with those from patients with single paternally inherited mutations. Thirtyseven probands were homozygous or compound …

The Effects Of Aerobic And Resistance Training On Mood State And Self-Esteem In Cardiac Rehabilitation, Cyndee M. Lee

College of Graduate Studies: Theses & Dissertations (1964–2006)

The primary purpose of this study was to investigate the effects of exercise training, aerobic and a combination of aerobic and resistance, on mood state and selfesteem in a sample of cardiac rehabilitation patients. A secondary purpose was to examine the influence of activity level on the psychological benefits received from the training programs. This study was conducted in a pretest/post-test format over an eight week period. Ten phase III participants (male = 9 and female = 1) volunteered from four cardiac rehabilitation centers in Georgia for participation in this study. Each participant read and signed an informed consent form …

Temporal And Spatial Variation In Abundance Of Migratory Birds At Kennesaw Mountain, Georgia, Andrew Allen Kinsey

College of Graduate Studies: Theses & Dissertations (1964–2006)

Migratory birds spend a significant part of each year in transition between their breeding and resting grounds. During this transitional period migrants rely on stopover sites to provide them with the necessary habitat to replenish lost energy stores, rest, and wait for favorable weather conditions before continuing migration. The majority of stopover work related to passerines in North America has occurred along coastal migration routes. Meanwhile, relatively little work has been conducted at inland stopover sites, areas which may be equally important to migrating birds. Kennesaw Mountain is an isolated geographically prominent peak located in the foothills of the southern …

The Impacts Of External Nutrient Sources On Marine Phytoplankton In An Eastern Shore Sea-Side Estuary, Claudette Lajoie Jenkins

OES Theses and Dissertations

The Eastern Shore of Virginia (Greens Creek) as well as a large portion of the North Atlantic coastline is characterized by estuarine systems not dominated by large river systems. Instead, small freshwater creeks influence many coastal systems yet little information has been documented on their ecological significance. The focus of this research is to identify the biogeochemical and physical interactions within an estuarine water-column and understand the importance of freshwater sources in governing phytoplankton production. The hypothesis of this research is that increases in external nutrient loading into Greens Creek will not result in an increase in primary production. The …

Investigation Of The Glucose-Induced Inactivation Of Maltose Permease In Saccharomyces, Igor L. Medintz

Dissertations, Theses, and Capstone Projects

The addition of glucose to maltose fermenting Saccharomyces cerevisiae cells results in the rapid loss of maltose transport activity. This results both from the repression of the maltose permease gene transcription and from the post-translational inactivation of maltose permease through a process termed glucose-induced inactivation of maltose permease. The inactivation consists of two separable processes, a rapid inhibition of maltose transport activity and by a slower degradation of maltose permease protein. Degradation is dependent on endocytosis, vesicular sorting and vacuolar proteolysis, and is independent of the proteasome. Furthermore, maltose permease exists in differentially phosphorylated forms.

Ubiquitin and the ubiquitin-conjugating system …

Social Implications Of Genetic Testing, Karen H. Rothenberg

Faculty Scholarship

This paper examines the social implications of predictive genetic testing and its impact on the insurance industry. Although the Human Genome Project has the potential to improve the health of our nation, it also may serve as a means of highlighting genetic differences among individuals and ethnic groups. Thus, if we are to reach the full promise of the Project, society must address the public's fears of genetic discrimination in insurance and employment context. Following an analysis of state and federal legislation on genetic privacy and discrimination, the paper concludes with a challenge to the insurance industry to work with …

The Use Of Rapd To Detect Genetic Variation In Populations Of Liatris Aspera Michx., Duane Joseph Kitchen

Dissertations and Theses @ UNI

The tall grass prairie is one of the most degraded and fragmented ecosystems on earth. Interest in conserving, restoring, and reconstructing tallgrass prairie began early in the 1900s, and has increased dramatically since the 1960s. Early restoration and reconstruction efforts relied primarily on seed collected from prairie remnants near the planting site, but with the increase in prairie planting efforts came a greater demand for large quantities of affordable, viable seed of native prairie species. Following an increase in the use of cultivated varieties (cultivars) of seed, concerns over the loss of genetic integrity of local populations and low genetic …

Population Dynamics Of The Southern Brown Bandicoot (Isoodon Obesulus) On Ellen Brook Reserve, Craig Pentland

Theses : Honours

The small, enclosed section of Ellen Brook Reserve provided the unique opportunity to observe a population of southern-brown bandicoots (lsoodon obesulus) in the absence of exotic predators. The reserves small-enclosed size enabled it possible to trap the whole area (excluding the ephemeral swamps) and so emigration and immigration could be excluded. This enabled good population size estimates, and inferences on the loss of individuals due to mortality could be more strongly argued for. An understanding of the population structure, dynamics, size and density, and body condition of I. obesulus in Ellen Brook Reserve, will provide important information, for …

Myofibrillar Protein Composition Of Regenerating And Pristine Claw Closer Muscles Of The Yabby, Cherax Albidis, Lanelle Cutler

Theses : Honours

Yabbies have the ability to regenerate lost limbs. Loss of a limb results in the growth of a limb bud. Development of this new limb involves many developing stages until the new limb becomes morphologically and physiologically virtually indistinguishable from its predecessor. In the yabby, the claw becomes functional after the first moult when the dactyl becomes moveable. However, the muscle fibres are able to develop force and appear to be functioning before the dactyl becomes moveable and the claw is operational (West et al., 1995). This study aimed to document morphological stages of claw regeneration and determine sequence and …

Iowa Academy Of Science Membership Directory, 1999-2000, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Editorial Board, Journal ... 5
Committees ... 6
Sections ... 18
ISTS Regional Directors ... 22
Awards of Merit ... 24
Excellence in Science Teaching Awards ... 25
Past Presidents ... 26
Membership Roster ... 27
Corporate Sponsors ... 70

The Effects Of Moulting On Muscle Fibre Characteristics Of The Yabby, Cherax Albidus, Tina Marie Lamey

Theses : Honours

In order to grow, crustaceans must shed their exoskeleton in a process known as "moulting'. Although this process is short and intermittent, it remains dominant over the life of a crustacean. Physiological changes in the period between moults (intermoult) are comparatively quiescent as opposed to the periods directly before and after the actual moult, known as premoult, and postmoult respectively (West, 1997). Moulting is associated with distinct physiological changes including the breakdown of muscle (Musgrove and Geddes, 1985). This muscle breakdown, known as atrophy is the diminution in size of the actual muscle mass and is very specific, occurring to …

Head Stabilisation During Running In Place Of Children With Varying Motor Proficiency Levels, Craig Atkins

Theses : Honours

Understanding head motion in children may contribute to development of effective strategies to improve coordination of children. The purpose of this study was to investigate head motion in children during stationary running. Twelve healthy 8-year-old children participated in this study and underwent a running proficiency test based on the Test for Gross Motor Proficiency (TGMO). Subjects were then videotaped while running for one minute "on the spot". Reflective markers were digitised for analysis of head motion relative to the external environment, and relative to the trunk. Resultant and component head angular velocities were calculated for each subject over five consecutive …

Head Motion In Overarm Throwing For Children With Varying Levels Of Motor Proficiency, Kevin J. Netto

Theses : Honours

The overarm throw has been classified as a fundamental motor skill that is the basis for a number of more complex sporting skills. There are a number of developmental stages over which a child progresses to the mature form of the skill. Control of the overarm throw, especially towards a target is very dependent on visual and vestibular information for successful execution. The quality of the information is, in tum, dependant on the head movement of the performer during the execution of the skill. It has been reported that head angular velocities above 350 degrees/second result in a degradation of …