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Designing A Mobile Space Habitat Analog, Victor Kitmanyen, Matthew Burkhard, Timothy Disher 2016 Embry-Riddle Aeronautical University - Daytona Beach

Designing A Mobile Space Habitat Analog, Victor Kitmanyen, Matthew Burkhard, Timothy Disher

Human Factors and Applied Psychology Student Conference

No abstract provided.


Photosynthetic Acclimation To Warming And Elevated Co2 In Two Antarctic Vascular Plant Species, Vi NT Bui 2016 The University of Western Ontario

Photosynthetic Acclimation To Warming And Elevated Co2 In Two Antarctic Vascular Plant Species, Vi Nt Bui

Electronic Thesis and Dissertation Repository

Climate change can affect the performance of the only two vascular plant species found in Antarctica, Deschampsia antarctica and Colobanthus quitensis. I investigated the response of these two species to warming and elevated CO2 in terms of photosynthesis and leaf anatomy. While photosynthesis increased directly with rising temperature and CO2, it showed no acclimation to changes in growth temperature, and a small degree of acclimation to growth under elevated CO2. Likewise, leaf anatomy displayed little plasticity in response to changes in the growth environment, although D. antarctica’s stomatal groove structure was modified under warming, likely to ...


Sensory Modalities Underlying The Escape Response Of The Cricket, Acheta Domesticus, To Looming Stimuli, Ariel M. Childs 2016 James Madison University

Sensory Modalities Underlying The Escape Response Of The Cricket, Acheta Domesticus, To Looming Stimuli, Ariel M. Childs

Senior Honors Projects

In order to prevent injury or capture by a predator, animals have evolved escape behavior. Despite offering a more realistic, multimodal, approximation of an approaching predator, looming stimuli have rarely been used to evoke escape behavior in crickets. Wind stimuli, however, have been used on a variety of insects, including crickets where it has been found that direction of escape is directly correlated to the angle of incoming wind stimuli. Wind stimuli are detected by sensilla trichodea, small filiform hairs covering the cerci of crickets, locusts and cockroaches. Despite having other complex sensory systems, such as antennae and vision, little ...


Success Stories And Emerging Themes In Conservation Physiology, Christine L. Madliger, Steven J. Cooke, Erica J. Crespi, Jennifer L. Funk, Kevin R. Hultine, Kathleen E. Hunt, Jason R. Rohr, Brent J. Sinclair, Cory D. Suski, Craig K. R. Willis, Oliver P. Love 2016 University of Windsor

Success Stories And Emerging Themes In Conservation Physiology, Christine L. Madliger, Steven J. Cooke, Erica J. Crespi, Jennifer L. Funk, Kevin R. Hultine, Kathleen E. Hunt, Jason R. Rohr, Brent J. Sinclair, Cory D. Suski, Craig K. R. Willis, Oliver P. Love

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The potential benefits of physiology for conservation are well established and include greater specificity of management techniques, determination of cause–effect relationships, increased sensitivity of health and disturbance monitoring and greater capacity for predicting future change. While descriptions of the specific avenues in which conservation and physiology can be integrated are readily available and important to the continuing expansion of the discipline of ‘conservation physiology’, to date there has been no assessment of how the field has specifically contributed to conservation success. However, the goal of conservation physiology is to foster conservation solutions and it is therefore important to assess ...


Changes In Brain Water Content In The Rainbow Trout (Oncorhynchus Mykiss) And In The Goldfish (Carassius Auratus) Due To High External Ammonia Exposure, Phillip Q.H. Pham-Ho 2016 Wilfrid Laurier University

Changes In Brain Water Content In The Rainbow Trout (Oncorhynchus Mykiss) And In The Goldfish (Carassius Auratus) Due To High External Ammonia Exposure, Phillip Q.H. Pham-Ho

Theses and Dissertations (Comprehensive)

In fishes, hyperammonemia may occur following feeding or exposure to abnormally high concentrations of environmental ammonia due to sewage effluents, agricultural run-off and in crowded aquaculture pens. Increased internal ammonia can result in hyperactivity, convulsions, coma and death. In mammals, it is also associated with potentially fatal brain edema, in which the accumulation of intracellular water results in swelling, increased intracranical pressure and herniation leading to death. Recently it was shown that rainbow trout (Oncorhynchus mykiss) and goldfish (Carassius auratus) experience brain swelling following exposure to high external ammonia (HEA). However, the mechanism of ammonia-induced brain swelling in fishes remains ...


Increases In A Population Of Nesting Glaucous-Winged Gulls Disturbed By Humans, Charles Amlaner, James Hayward, Ernest Schwab, John Stout 2015 Kennesaw State University

Increases In A Population Of Nesting Glaucous-Winged Gulls Disturbed By Humans, Charles Amlaner, James Hayward, Ernest Schwab, John Stout

John Stout

No abstract provided.


Dispersal Of Seagulls In An Airdrome Environment, John Stout, William Gillett, James Hayward, Charles Amlaner 2015 Andrews University

Dispersal Of Seagulls In An Airdrome Environment, John Stout, William Gillett, James Hayward, Charles Amlaner

John Stout

Glaucous-winged Gulls (Larus Glaucescens) provide an acute bird/ aircraft hazard at Shemya Air Force Base, Shemya Island, Alaska. The problem was evaluated by making survey counts of aggregations of gulls on the island. At Ellington Air Force Base, TX, Ring-billed Gulls (Larus delawarensis) often aggregate in large groups on or near the active runways and are hazardous to aircraft. Recorded gull calls played to aggregations of Glaucous-winged Gulls at Shemya AFB showed that the Distress call resulted in fewer birds remaining following playback than any other call. Distress calls played back to aggregations of Ring-billed Gulls near Ellington AFB were ...


Predation On Nesting Gulls By A River Otter In Washington State, James Hayward, Charles Amlaner, W. Gillett, John Stout 2015 Andrews University

Predation On Nesting Gulls By A River Otter In Washington State, James Hayward, Charles Amlaner, W. Gillett, John Stout

John Stout

No abstract provided.


Predation On Gulls By Bald Eagles In Washington, James Hayward, W. Gillett, Charles Amlaner, John Stout 2015 Andrews University

Predation On Gulls By Bald Eagles In Washington, James Hayward, W. Gillett, Charles Amlaner, John Stout

John Stout

No abstract provided.


Longevity Of Mineral Supplements Within The Soil And Associated Use By White-Tailed Deer, Brian C. Peterson, Keith D. Koupal, Andrew K. Schissel, Cody M. Siegel 2015 University of Nebraska Kearney

Longevity Of Mineral Supplements Within The Soil And Associated Use By White-Tailed Deer, Brian C. Peterson, Keith D. Koupal, Andrew K. Schissel, Cody M. Siegel

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Humans have baited wildlife such as white-tailed deer (Odocoileus virginianus) for generations with the primary purpose of increasing hunting harvest success. Baiting regulation changes are often considered by state management agencies as they pertain to hunting opportunity, fair chase, and disease risk. Cervids require a variety of minerals to supplement biological processes, especially sodium (Na), calcium (Ca), and phosphorus (P). We developed artificial mineral supplement sites set in front of trail cameras to monitor deer use. Pooled soil samples were collected at mineral sites and compared to the surrounding area to determine the longevity of elevated minerals levels within the ...


Cardioprotective Role Of The Cholinergic System, Mouhamed Dakroub 2015 The University of Western Ontario

Cardioprotective Role Of The Cholinergic System, Mouhamed Dakroub

Electronic Thesis and Dissertation Repository

The process of aging is an irreversible continuum experienced by all individuals. A large number of physiological transformations occur to the cardiovascular system as one ages. These changes result in increased risk of developing cardiovascular diseases, many of which are frequently seen in geriatric populations. While the exact mechanisms of age-related cardiac dysfunction have not been established, abnormal cholinergic dysfunction has been implicated in the pathology of other age related diseases; therefore, we have hypothesized that age induced cholinergic dysfunction is detrimental to cardiac function and health. This study seeks to identify whether increased cholinergic signaling, either by transgenic overexpression ...


Cardiovascular Regulation And Effects Of Respiratory Motor Training In Patients With Chronic Spinal Cord Injury., Bonnie Legg Ditterline 2015 University of Louisville

Cardiovascular Regulation And Effects Of Respiratory Motor Training In Patients With Chronic Spinal Cord Injury., Bonnie Legg Ditterline

Electronic Theses and Dissertations

This dissertation attempts to discover the mechanisms between cardiovascular and respiratory motor control post spinal cord injury (SCI): in normal, non-injured (NI) persons, cardiovascular regulation is dependent upon respiration, but there is nothing that suggests the mechanism for this relationship post-SCI. Thus we hoped to evaluate various aspects of cardiovascular regulation to further illustrate how this relationship is changed or unchanged by SCI. Chapter I describes the anatomy and physiology of the spine, respiratory system, and cardiovascular system in a NI person, and then describes how the function of these systems is changed by SCI. In addition, we describe therapies ...


Salivary Vip Concentrations Are Elevated In Humans After Acute Stress, Giovanni Ventre 2015 Seton Hall University

Salivary Vip Concentrations Are Elevated In Humans After Acute Stress, Giovanni Ventre

Seton Hall University Dissertations and Theses (ETDs)

The purpose of this research was to evaluate two salivary neuropeptides in the context of the stress response. The research was focused first and foremost on evaluating the usefulness of salivary Neuropeptide Y (NPY) and salivary vasoactive intestinal peptide (VIP) as stress indicators. Secondly, we questioned whether these markers help us in distinguishing between physical and psychological stress. Psychological stress can be experienced in a situation such as that in anticipation of an important exam or mental task. Physical stress can be experienced usually by strenuous exercise. Salivary NPY and salivary VIP are two neuropeptides that are released as a ...


Lh-Independent Testosterone Secretion Is Mediated By The Interaction Between Gnrh2 And Its Receptor Within Porcine Testes, Amy T. Desaulniers, Rebecca A. Cederberg, Ginger A. Mills, J. Joe Ford, Clay A. Lents, Brett R. White 2015 University of Nebraska-Lincoln

Lh-Independent Testosterone Secretion Is Mediated By The Interaction Between Gnrh2 And Its Receptor Within Porcine Testes, Amy T. Desaulniers, Rebecca A. Cederberg, Ginger A. Mills, J. Joe Ford, Clay A. Lents, Brett R. White

Faculty Papers and Publications in Animal Science

Unlike classic gonadotropin-releasing hormone 1 (GNRH1), the second mammalian isoform (GNRH2) is an ineffective stimulant of gonadotropin release. Species that produce GNRH2 may not maintain a functional GNRH2 receptor (GNRHR2) due to coding errors. A full-length GNRHR2 gene has been identified in swine, but its role in reproduction requires further elucidation. Our objective was to examine the role of GNRH2 and GNRHR2 in testicular function of boars. We discovered that GNRH2 levels were higher in the testis than in the anterior pituitary gland or hypothalamus, corresponding to greater GNRHR2 abundance in the testis versus the anterior pituitary gland. Moreover, GNRH2 ...


Reactivity Of The Middle Cerebral Artery To Carbon Dioxide, Nicole Coverdale 2015 The University of Western Ontario

Reactivity Of The Middle Cerebral Artery To Carbon Dioxide, Nicole Coverdale

Electronic Thesis and Dissertation Repository

Transcranial Doppler ultrasound (TCD) is used for the assessment of cerebral blood flow velocity (CBFV) at the middle cerebral artery (MCA) with the assumption that diameter of the artery does not change. Thus, CBFV is equivalent to cerebral blood flow (CBF). The purpose of this thesis was determine if the MCA dilates during hypercapnia (HC) and/or constricts during hypocapnia (HO) in healthy young and older adults using 3T magnetic resonance imaging (MRI). We also determined how these changes in MCA cross-sectional area (CSA) influence estimates of CBF and cerebrovascular reactivity (CVR) from TCD in young and older adults. Lastly ...


Effects Of Pre-Release Physical Stressors On Post-Release Success Of Hatchery-Reared Spotted Seatrout, Taylor Westbrook Guest 2015 University of Southern Mississippi

Effects Of Pre-Release Physical Stressors On Post-Release Success Of Hatchery-Reared Spotted Seatrout, Taylor Westbrook Guest

Master's Theses

Alteration of habitat associated with coastal development and increased demand for food and recreation can result in the depletion of fisheries resources such as the Spotted Seatrout (Cynoscion nebulosus), the Gulf of Mexico’s most popular recreational fish. Stock enhancement, or the release of cultured fish to supplement wild populations, is one potential tool for managing important fisheries resources. Although much effort has gone into marine stock enhancement, the effectiveness of stocking is not well established, and techniques for ensuring success have not been developed. Although the basic biology of the Spotted Seatrout is well known, comparatively little is known ...


The Role Of Rfamide-Related Peptide 3 (Rfrp3) In Regulation Of The Neuroendocrine Reproductive And Growth Axes Of The Boar, Jennifer F. Thorson, Amy T. Desaulniers, Chanho Lee, Brett R. White, J. Joe Ford, Clay A. Lents 2015 USDA, ARS, USMARC

The Role Of Rfamide-Related Peptide 3 (Rfrp3) In Regulation Of The Neuroendocrine Reproductive And Growth Axes Of The Boar, Jennifer F. Thorson, Amy T. Desaulniers, Chanho Lee, Brett R. White, J. Joe Ford, Clay A. Lents

Faculty Papers and Publications in Animal Science

RFamide-related peptide 3 (RFRP3) has been implicated in regulating reproduction and growth. This regulation appears to be dependent upon sex, species, physiological status, and developmental stage. The objective of the present study was to evaluate the effects of RFRP3 on circulating concentrations of luteinizing hormone (LH) and growth hormone (GH) in mature boars. The hypothesis was RFRP3 would reduce circulating concentrations of LH and increase concentrations of GH. Meishan boars (716.6±2.8 days of age; 125.0±12.4kg BW) were randomly assigned to treatment: saline (n=4) or RFRP3 (8.5mg; n=5). Plasma was collected at ...


Prenatal Exposure To Bisphenol A Disrupts Fetal Liver Maturation In A Sex-Specific Manner, Bianca DeBenedictis 2015 The University of Western Ontario

Prenatal Exposure To Bisphenol A Disrupts Fetal Liver Maturation In A Sex-Specific Manner, Bianca Debenedictis

Electronic Thesis and Dissertation Repository

Developmental exposure to BPA is associated with liver dysfunction and diseases in adulthood. However, the effects of BPA on liver development are unknown. To address this question, pregnant mice were exposed to BPA via diet from embryonic day 7.5 (E7.5) to E18.5. At E18.5, fetal livers were collected, and analyzed for changes in the expression of key hepatic maturation markers. We found the following significant protein alterations in BPA-exposed female but not male fetal livers: (a) mature hepatocyte markers, albumin and glycogen synthase, were decreased; (b) immature hepatocyte marker, alpha-fetoprotein, was increased; (c) master transcription factor ...


Molecular Correlates Of Social Dominance: A Novel Role For Ependymin In Aggression, Lynne Sneddon, Rupert Schmidt, Yongxiang Fang, Andrew Cossins 2015 University of Liverpool

Molecular Correlates Of Social Dominance: A Novel Role For Ependymin In Aggression, Lynne Sneddon, Rupert Schmidt, Yongxiang Fang, Andrew Cossins

Lynne U. Sneddon, Ph.D.

Theoretical and empirical studies have sought to explain the formation and maintenance of social relationships within groups. The resulting dominance hierarchies have significant fitness and survival consequences dependent upon social status. We hypothesised that each position or rank within a group has a distinctive brain gene expression profile that correlates with behavioural phenotype. Furthermore, transitions in rank position should determine which genes shift in expression concurrent with the new dominance status. We used a custom cDNA microarray to profile brain transcript expression in a model species, the rainbow trout, which forms tractable linear hierarchies. Dominant, subdominant and submissive individuals had ...


Age-Related Differences In Upper-Body Muscular Endurance Amongst Male Law Enforcement Officers: A Comparison To Civilian Population Norms, Rob Orr, Rodney Pope, Jay Dawes 2015 Bond University

Age-Related Differences In Upper-Body Muscular Endurance Amongst Male Law Enforcement Officers: A Comparison To Civilian Population Norms, Rob Orr, Rodney Pope, Jay Dawes

Tactical Research Unit Conference papers

Download a PDF of the Conference Abstracts. Access the abstract on page 30-31.


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