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Articles 1 - 14 of 14
Full-Text Articles in Life Sciences
Investigations Of The Impact Of Excess Gut Volume On Spinal Angles, Carly Stoops
Investigations Of The Impact Of Excess Gut Volume On Spinal Angles, Carly Stoops
Honors Projects
This compilation of research projects investigates the impact of increased gut volume on the lumbosacral disc angle and the central lumbar angle of the spine. The magnitudes of the lumbosacral disc angle can change due to age, pregnancy, sex, and, as hypothesized, gut volume. It is unknown how the central lumbar angle changes due to increased gut volume. This is important because these spinal modifications can result in pain, specifically in the lower back. The consequences of being overweight or obese rarely include the anatomical changes that result due to excess gut volume and center of mass changes. My goal …
Go Big Or Go Home: Divergence In Morphology And Behavior Between Island And Islet Populations Of The San Cristóbal Lava Lizard (Microlophus Bivittatus), Emilio J. Mancero
Go Big Or Go Home: Divergence In Morphology And Behavior Between Island And Islet Populations Of The San Cristóbal Lava Lizard (Microlophus Bivittatus), Emilio J. Mancero
Masters Theses
Rapid divergence in body size is a well-documented phenomenon among island species, associated with macroevolutionary processes of diversification and adaptive radiation. The effect of insularity in determining larger body size as an optimal phenotype is primarily attributed to lower predation and greater intraspecific competition on islands. Our study examined interpopulation variation in morphology, social behavior and predator avoidance in Galápagos lava lizards endemic to San Cristóbal island (Microlophus bivittatus), and the nearby islet Isla Lobos. Islet populations have fewer competitors than those on the island, where native and introduced predators are abundant. We simulated interactions with predators and …
Cancer: The Burden Of Treatments Eased By Recent Developments In The Field: A Review Of The Literature, Zachary J. Seim
Cancer: The Burden Of Treatments Eased By Recent Developments In The Field: A Review Of The Literature, Zachary J. Seim
Culminating Experience Projects
Cancer is a very prevalent disease that has affected most of the population. Treatment options that have been used for decades are beginning to be outcompeted by newer developments in the field. Newer developments allow a more specific response to cancers that have proven to be very difficult for traditional treatment. Immune specific treatments also give the ability to specifically target areas affected by the cancer, to reduce potential risk of systemic damage and autoimmunity. Developing cancer treatments that are highly specific brings forth a new age of medicine, hoping to prolong the life expectancy of those affected with cancers, …
The Development Of Fetal Immunity From In Utero To Shortly After Birth And Complications That Can Arise From Improper Functioning, Marlee Curnutt
The Development Of Fetal Immunity From In Utero To Shortly After Birth And Complications That Can Arise From Improper Functioning, Marlee Curnutt
Culminating Experience Projects
The development of the immune system in humans is highly complex and requires precise timing which is still debated today. Research has shown IL-10 and T-regulatory cells play a significant role in the proper development of the immune system from in utero continuing into months after birth. These components and various cytokines continue to be guiding factors supplemented by the mother via placenta and breastfeeding. The dysregulation of immune development can have detrimental effects on the infant and may lead to autoimmune disorders. In this paper, we aim to further understand the development of the immune system from fetal to …
A Comparison Of Pm-Nato3’S Influence On Neural Progenitors And Mature Dopamine Neurons, Mary E. West
A Comparison Of Pm-Nato3’S Influence On Neural Progenitors And Mature Dopamine Neurons, Mary E. West
Masters Theses
This thesis presents significant findings regarding the role of PM-Nato3 in its interaction with developing neurons in the context of Parkinson's disease (PD) and regenerative medicine. We investigated the effects of PM-Nato3 on dopamine (DA) neurogenesis under different culture conditions, both in vitro and in vivo. In the standard dopaminergic culture condition, PM-Nato3 potentially increased the speed of DA neuron production but did not significantly increase the yield of DA neurons. In a minimal culture condition, there was no notable difference between the control and PM-Nato3 conditions, suggesting minimal impact on DA neurogenesis. In vivo studies using a mouse model …
Serotonin And Its Effects On The Chronic Stress Response In Crayfish Following Nonylphenol Exposure, Tara M. Olen
Serotonin And Its Effects On The Chronic Stress Response In Crayfish Following Nonylphenol Exposure, Tara M. Olen
Masters Theses
Current research suggests that stress in both vertebrates and invertebrates is modulated in part by the neurotransmitter serotonin. It has been shown that crayfish can function as a good neurophysiological model, as they have less complex neurological systems than vertebrates, so mechanistic causes for stress can be more readily studied and understood. One potential stressor for aquatic species such as crayfish would be nonylphenol, a hydrophobic chemical used in agricultural products that can make its way into the water supply due to agricultural runoff. Nonylphenol can lead to physiological and behavioral impairments in crayfish and these impairments likely induce stress …
Morphological Characterization Of Two Transgenic Strategies For Genetic Access To Semilunar Granule Neurons In The Mouse Dentate Gyrus, David T. Rexford
Morphological Characterization Of Two Transgenic Strategies For Genetic Access To Semilunar Granule Neurons In The Mouse Dentate Gyrus, David T. Rexford
Masters Theses
Granule cells (GCs) of the dentate gyrus (DG) have been understood as a homogeneous class of neurons exhibiting a characteristic limited firing pattern. A subtype of GC called a semilunar granule cell (SGC) has been identified exhibiting variant morphology, electrophysiology, and positioning from normal GCs. SGCs represent an emerging novel subpopulation of GCs, however, there is presently no genetic tool to access SGCs separately from normal GCs. To provide access for future in vivo studies of this population, we examined two genetic strategies for putative SGC specificity in mouse brain slices. Morphological analysis was performed for quantitative identification of putative …
Use Of Resources By Adult Karner Blue Butterflies (Lycaeides Melissa Samuelis) In Michigan: Comparisons Of Nectar Selections On Native And Non-Native Species, Afafia Herweyer
Culminating Experience Projects
Abstract
The endangered Karner blue butterfly (Lycaeides melissa samuelis) is at risk due to the decline of oak barrens and dry sand prairies, the butterfly’s sole habitat. Survival depends on effective conservation of remaining habitat and creation of new viable habitats. Successful management must consider resource needs for both larval and adult stages. Information on adult nectar requirements is limited (Grundel et al. 2000, Pickens & Root 2008). Sufficient nectar increases lifespan and fecundity of butterflies (Murphy et al. 1983, Hill & Pierce 1989, Fischer & Fielder 2001), and deters emigration. Encroachment of non-native nectar species into butterfly habitat warrants …
Long Term Monitoring Of Grand Ravines Park Restoration: An Authentic Research Opportunity For Jenison High School Students And Beyond, Karina C. White
Long Term Monitoring Of Grand Ravines Park Restoration: An Authentic Research Opportunity For Jenison High School Students And Beyond, Karina C. White
Culminating Experience Projects
Access to authentic research is limited at the 7-12 science education level. At the same time, many local restoration projects would benefit from, but don’t have access to a long-term system of monitoring. This project seeks to unite those two needs by developing a protocol for 7-12 classrooms to be able to participate in authentic research through long-term monitoring of a local restoration project. The protocol developed in this project was used by Jenison High School students at Grand Ravines Park. Grand Ravines Park is a recently acquired Ottawa County park with a history of anthropogenic disturbances. Shortly after the …
The Impacts Of Road Salt On Water Quality And Phosphorus Dynamics In An Urban Lake, Ellen Foley
The Impacts Of Road Salt On Water Quality And Phosphorus Dynamics In An Urban Lake, Ellen Foley
Masters Theses
Road salt runoff from de-icing applications has notably increased chloride concentrations in lakes throughout north temperate regions of the planet, with negative impacts on freshwater ecosystems. For the past 20 months, I have monitored the water quality of a chloride-impaired lake and associated tributary in Grand Rapids, Michigan. Chloride levels in the deepest part of the lake have reached up to 331 mg/L, above EPA chronic toxicity thresholds. The salt-induced density gradient has prevented the lake from completely mixing during my study period and created persistent hypoxia in the hypolimnion. Total phosphorus (TP) concentrations in the hypolimnion can exceed 7500 …
The Application Of Microbial Source Tracking To Aid In Site Prioritization For Remediation In Lower Michigan, John J. Hart
The Application Of Microbial Source Tracking To Aid In Site Prioritization For Remediation In Lower Michigan, John J. Hart
Masters Theses
Non-point source fecal pollution is a threat to both the environment and public health. Climate change, aging infrastructure, and intensified agricultural practices are predicted to accentuate this issue. In Michigan, due to the high instance of aging infrastructure and intensified agriculture, non-point source fecal pollution has caused many waterbodies to exceed the state standards posing a risk to recreational activities and source water. Due to this threat, there is an increased effort to identify and remediate these sources. My study focused on improving the identification of non-point source fecal pollution through a combination of culture-based and molecular fecal indicator bacteria …
The Association Between College Age Students' Nutrition Intake And Depression, Mackenzie Allen
The Association Between College Age Students' Nutrition Intake And Depression, Mackenzie Allen
Honors Projects
The research performed was to determine a correlation between depression and nutrient intake in college age students. This study used NHANES publicily available data and IBM's SPSS statistical software to analyze a correlation between depression and nutrition/lifestyle variables: vitamin D, vitamin B12, saturated fatty acids, unsaturated fatty acids, fiber, and exercise. The study found that fiber and unsaturated fatty acid intake had a negative correlation with depression, meaning that as the intake of these nutrients increased, depression decreased. This research reveals key factors to improve the nutritional status of college age students, along with their emotional wellbeing.
Analyzing The Patient-Provider Relationship And Assessing Shortages In Oral Healthcare In Arenac County, Michigan, Aaron Norfleet
Analyzing The Patient-Provider Relationship And Assessing Shortages In Oral Healthcare In Arenac County, Michigan, Aaron Norfleet
Honors Projects
The purpose of this prospective study will be to assess the patient-provider relationship in Arenac County, Michigan, analyze barriers to treatment for rural patients, and develop a meaningful plan to improve upon these categories. The intended outcomes of this study will be the development of a resource for rural oral healthcare providers to better understand and treat the needs of their patients based on knowledge from beyond the chairside, as well as the development of an easily repeatable model for patient-provider analysis. Furthermore, the questionnaires and data collected from this could assist in informing governmental or non-governmental organizations in identifying …
Science Information Literacy Lesson Plan, Barbara C. Harvey
Science Information Literacy Lesson Plan, Barbara C. Harvey
Lesson Plans
Students need to find “primary research” articles (also known as “scholarly,” “peer-reviewed,” or “refereed” articles), but how can they tell them apart from other types of articles, and where can they find them? This lesson is designed for a 50-minute session with student access to internet-accessible devices (laptops, tablets, etc.).