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Full-Text Articles in Life Sciences

Effects Of Slope Upon Hind Limb Kinematics In Chukar Partridge (Alectoris Chukar), Anna T. Kenney Jan 2020

Effects Of Slope Upon Hind Limb Kinematics In Chukar Partridge (Alectoris Chukar), Anna T. Kenney

Undergraduate Theses and Professional Papers

Ground dwelling birds must scale all kinds of complex terrain in order to survive in their natural environments. For instance, Alectoris chukar live on steep hillsides with slopes of up to 60° or 172.3% slope. We undertook the present study to improve understanding of how birds successfully traverse such complex terrain. Using a high speed camera, we analyzed the hind limb kinematics of chukars during normal locomotion on a 10° and 35° incline, decline, and level slope. We compared the data collected from the video recordings, which we had used to identify and digitize the bony landmarks, between all ...


Effect Of Turmeric On The Promoter Activity Of The Cyp6a8 Gene Of Drosophila Melanogaster, Alexa Stroh May 2019

Effect Of Turmeric On The Promoter Activity Of The Cyp6a8 Gene Of Drosophila Melanogaster, Alexa Stroh

University of Tennessee Honors Thesis Projects

No abstract provided.


Untangling The Economic And Social Impediments To Producer Adoption Of Organic Wheat, Donya L. Ralph-Quarnstrom May 2019

Untangling The Economic And Social Impediments To Producer Adoption Of Organic Wheat, Donya L. Ralph-Quarnstrom

All Graduate Theses and Dissertations

Consumer demand for organic products has shown double-digit growth in recent years encouraging the development of a wider range of goods (Greene, 2017). Americans with an annual household income under $30,000 actively purchase organic foods at nearly the same rate as households with over $75,000 in annual incomes, 42% versus 49% (Greene et al., 2017). Previous research observed the adoption of organic farming practices on a combination of different grains, fruits and vegetables, meat, and dairy products from across the globe. However, this is the first study to examine the adoption of organic wheat in the Western U ...


Impacts Of Cattle Grazing As A Tool To Control Phragmites Australis In Wetlands On Nitrogen, Phosphorus, And Carbon, Brittany L. Duncan May 2019

Impacts Of Cattle Grazing As A Tool To Control Phragmites Australis In Wetlands On Nitrogen, Phosphorus, And Carbon, Brittany L. Duncan

All Graduate Theses and Dissertations

Phragmites australis is a plant that is causing problems in wetlands by outcompeting native plants that provide food and shelter for millions of migratory birds. Currently, managers try to control Phragmites australis by spraying herbicide, burning, and mowing, but these methods are costly, time consuming, and have low levels of success. Adding grazing as a tool to control Phragmites australis provides a cheap and low labor alternative. However, there are many concerns regarding if grazing will cause nutrient loading in our wetlands that will decrease water quality and alter beneficial functions of wetlands.

To better understand the effects of grazing ...


Changes In Spring Arrival Times: Climate Change And The Phenology Of Spring Bird Migration, Aaron Svedlow Apr 2019

Changes In Spring Arrival Times: Climate Change And The Phenology Of Spring Bird Migration, Aaron Svedlow

Student Scholarship

Climate change and weather affect the phenology of bird migration; however, specific climatological factors associated with these observed effects have only recently been described. The relationship between local, regional, and global climate patterns and avian migration are increasingly important to understand due to the widespread, and potentially negative, implications (such as reduced fecundity) of rapid human induced climate change on bird populations. Migratory birds are under selective pressure to arrive at breeding areas at the optimal time to set up nesting territories and exploit seasonally abundant food resources, and because climate change has the potential to occur more rapidly than ...


Solvation Thermodynamic Mapping In Computer Aided Drug Design, Steven Ramsey Feb 2019

Solvation Thermodynamic Mapping In Computer Aided Drug Design, Steven Ramsey

All Dissertations, Theses, and Capstone Projects

The displacement of water from surfaces upon biomolecular recognition and association makes a significant contribution to the free energy changes of these processes. We therefore posit that accurate characterization of local structural and thermodynamic molecular water properties can improve computational model accuracy and predictivity of recognition and association processes. In this thesis, we discuss Solvation Thermodynamic Mapping (STM) methods that we have developed using inhomogeneous fluid solvation theory (IST) to better characterize active site water structural and thermodynamic properties on protein surfaces and the open source tools that we have developed, GIST-CPPTRAJ and SSTMap, which implement these methods which we ...


Bisthioether Stapled Peptides Targeting Polycomb Repressive Complex 2 Gene Repression, Gan Zhang Feb 2019

Bisthioether Stapled Peptides Targeting Polycomb Repressive Complex 2 Gene Repression, Gan Zhang

All Dissertations, Theses, and Capstone Projects

Interactions between proteins play a key role in nearly all cellular process, and therefore, disruption of such interactions may lead to many different types of cellular dysfunctions. Hence, pathologic protein-protein interactions (PPIs) constitute highly attractive drug targets and hold great potential for developing novel therapeutic agents for the treatment of incurable human diseases. Unfortunately, the identification of PPI inhibitors is an extremely challenging task, since traditionally used small molecule ligands are mostly unable to cover and anchor on the extensive flat surfaces that define those binary protein complexes. In contrast, large biomolecules such as proteins or peptides are ideal fits ...


Green Tea Extract, Epigallocatechin Gallate, Protect Against Methamphetamine-Induced Striatal Neurotoxicity In Mice, Allen L. Pan Feb 2019

Green Tea Extract, Epigallocatechin Gallate, Protect Against Methamphetamine-Induced Striatal Neurotoxicity In Mice, Allen L. Pan

All Dissertations, Theses, and Capstone Projects

Methamphetamine (METH) is a strong psychostimulant and its exposure can lead to serious neurological complications. METH-induced neuronal injury is the result of a complex interplay of different factors including dopamine (DA) overflow, oxidative stress and neuroinflammation. Although the mechanisms of METH-induced neurotoxicity have been extensively studied, there is still no effective therapeutic treatment. Therefore, it is essential to study potential drug candidates that can treat METH-induced neurotoxicity. Green tea extract, epigallocatechin gallate (EGCG), has emerged as a neuroprotective agent that can protect against several neurodegenerative diseases such as Alzheimer’s and Parkinson’s diseases. Recently, our lab has shown that ...


Identification And Characterization Of Barrier Insulator Activity In The T-Cell Receptor Alpha Locus Control Region, Gayathri Devi Raghupathy Feb 2019

Identification And Characterization Of Barrier Insulator Activity In The T-Cell Receptor Alpha Locus Control Region, Gayathri Devi Raghupathy

All Dissertations, Theses, and Capstone Projects

Genes of different spatiotemporal expression profiles are often juxtaposed in the genome. This organization raises risks of cross-regulatory influences from neighboring genes; for instance heterochromatin can spread over euchromatin or long-range acting enhancers can inappropriately activate genes. Gene regulatory elements such as Locus Control Regions (LCR) and Insulators prevent such cross-communications and allow for normal gene expression patterns. In transgenic systems, LCRs limit influences from surrounding chromatin by providing site-of-integration independent and specific spatiotemporal expression upon a linked transgene. The field’s understanding of the ability of an LCR to overcome chromatin influences and allow site-of-integration independent expression is minimal ...


Novel Biobehavioral Methods For Assessing The Anxiety-Related Attention Bias, Samantha Denefrio Feb 2019

Novel Biobehavioral Methods For Assessing The Anxiety-Related Attention Bias, Samantha Denefrio

All Dissertations, Theses, and Capstone Projects

Anxiety disorders will affect an estimated one in three Americans, significantly impacting emotional health and quality of life. High personal and economic costs make research on the etiology, maintenance, and treatment of anxiety a crucial public health goal. Selective and exaggerated attention towards threat, termed attention bias (AB), has been identified as a core behavioral and neurocognitive mechanism in anxiety. A novel treatment, attention bias modification training (ABMT), targets AB and aims to ameliorate anxiety. Rarely acknowledged, however, are the challenges in the conceptualization and measurement of AB. First, associations between anxiety and AB in anxious populations have been increasingly ...


A Defense Of Pure Connectionism, Alex B. Kiefer Feb 2019

A Defense Of Pure Connectionism, Alex B. Kiefer

All Dissertations, Theses, and Capstone Projects

Connectionism is an approach to neural-networks-based cognitive modeling that encompasses the recent deep learning movement in artificial intelligence. It came of age in the 1980s, with its roots in cybernetics and earlier attempts to model the brain as a system of simple parallel processors. Connectionist models center on statistical inference within neural networks with empirically learnable parameters, which can be represented as graphical models. More recent approaches focus on learning and inference within hierarchical generative models. Contra influential and ongoing critiques, I argue in this dissertation that the connectionist approach to cognitive science possesses in principle (and, as is becoming ...


Effects Of Red Raspberry Polyphenols And Metabolites On Biomarkers Of Inflammation And Insulin Resistance In Prediabetes And Type 2 Diabetes, Reynaldo Moreno Ucles Jan 2019

Effects Of Red Raspberry Polyphenols And Metabolites On Biomarkers Of Inflammation And Insulin Resistance In Prediabetes And Type 2 Diabetes, Reynaldo Moreno Ucles

LSU Doctoral Dissertations

Berry fruits are rich sources of polyphenolic compounds (PCs), which can promote health benefits. Anthocyanin concentrations of red raspberry (RR)(Rubus idaeus) extracts were determined to be a total of 887.6 ± 262.8 μg/g cyanidin-3-sophoroside (C3S) equivalents with C3S being the most prevalent. Ellagitannin analysis by MALDI-TOF indicated sanguiin H-6 and lambertianin C were the major ellagitannins present in RR. To explore the efficacy of RR in modulating diabetes, seven type 2 diabetes mellitus (T2DM) and two pre-diabetic patients were given drinks delivering one RR serving (123 g) per day in a smoothie for two weeks. Blood samples ...


Impact Of Psychological And Physical Stressors On The Exercise-Induced Immune Response In Collegiate Swimmers, Connor Alexander Kuremsky Jan 2019

Impact Of Psychological And Physical Stressors On The Exercise-Induced Immune Response In Collegiate Swimmers, Connor Alexander Kuremsky

LSU Master's Theses

Evidence suggests high-intensity exercise training increases incidence of upper respiratory infection in young-adult athletes (Spence et al. 2007). Collegiate athletes experience chronic stress, which has been shown to result in increased proportions of late-differentiated CD8+ T-cells of a dysfunctional phenotype (Bosch et al. 2009). However, many studies fail to consider possible moderators such as psychological stress and cytomegalovirus (CMV) infection. Purpose: To examine the impact of psychological stress, CMV infection, and exercise on proportions of early- and late-differentiated CD4+ and CD8+ T-cells in collegiate swimmers over a 7-month training period. Methods: Data were collected from NCAA Division 1 swimmers (13 ...


Influence Of Nitrogen And Sprig Planting Rates On Surface Runoff Losses During 'Latitude 36' Bermudagrass Establishment, Lance A. Rice Jan 2019

Influence Of Nitrogen And Sprig Planting Rates On Surface Runoff Losses During 'Latitude 36' Bermudagrass Establishment, Lance A. Rice

LSU Master's Theses

The hybrid bermudagrass (Cynodon dactylon x C. transvaalensis) ‘Latitude 36’ is grown because of its quality, excellent wear tolerance and fast recuperation. Hybrid bermudagrasses are vegetatively propagated as sprigs with N applied to accelerate establishment. Since losses of soil and associated nutrients in runoff are relatively high when ground coverage is low, rapid establishment is desirable from an environmental besides aesthetic basis. However, neither the interactive effect of sprig density and N fertilization on the rate of bermudagrass expansion nor soil and nutrient loss during establishment has been carefully examined. The current work measured bermudagrass coverage, runoff volume and concentrations ...


Master’S Project: Vermont Town Forest Recreation Planning And Community Assistance Program: The Future Of Forest-Based Outdoor Recreation, Taylor M. Luneau Jan 2019

Master’S Project: Vermont Town Forest Recreation Planning And Community Assistance Program: The Future Of Forest-Based Outdoor Recreation, Taylor M. Luneau

Rubenstein School Masters Project Publications

The Vermont Town Forest Recreation Planning Community Assistance Program (VTFRP) was a comprehensive community planning process held in ten diverse towns across Vermont. Led by the Urban and Community Forestry Program and the SE Group, the VTFRP helped towns develop a vision for the future management of their forests through open house workshops, site visits, steering committee meetings, and community surveys. The process provided towns with a forest recreation planning toolkit and an individualized action-based forest stewardship and recreation plan. By analyzing data from the community surveys and open house activities across all ten towns, my project considered the recreation ...


Utilization Of Various Methods And A Landsat Ndvi/Google Earth Engine Product For Classifying Irrigated Land Cover, Andrew Nemecek Jan 2019

Utilization Of Various Methods And A Landsat Ndvi/Google Earth Engine Product For Classifying Irrigated Land Cover, Andrew Nemecek

Graduate Student Theses, Dissertations, & Professional Papers

Methods for classifying irrigated land cover are often complex and not quickly reproducible. Further, moderate resolution time-series datasets have been consistently utilized to produce irrigated land cover products over the past decade, and the body of irrigation classification literature contains no examples of subclassification of irrigated land cover by irrigation method. Creation of geospatial irrigated land cover products with higher resolution datasets could improve reliability, and subclassification of irrigation by method could provide better information for hydrologists and climatologists attempting to model the role of irrigation in the surface-ground water cycle and the water-energy balance. This study summarizes a simple ...


Automated Body Condition Scoring: Progression Across Lactation And Its Association With Disease And Reproduction In Dairy Cattle, Carissa Marie Truman Jan 2019

Automated Body Condition Scoring: Progression Across Lactation And Its Association With Disease And Reproduction In Dairy Cattle, Carissa Marie Truman

Theses and Dissertations--Animal and Food Sciences

Body condition scoring is a technique used to noninvasively assess fat reserves. It provides an objective estimate to describe the current and past nutritional status of the dairy cow and has been associated with increased disease risk and breeding success. Traditionally body condition scores are taken manually by visual appraisal on a 1 to 5 scale, in one-quarter increments. However, recent studies have shown the potential of automating the body condition scoring of cows using images. The first objective was to estimate the likelihood of disease development and breeding success, using odds ratios, associated with body condition score scored automatically ...


Forage Quality Of Cool Season Perennial Grass Horse Pastures In The Transition Zone, Annmarie Christine Riley Jan 2019

Forage Quality Of Cool Season Perennial Grass Horse Pastures In The Transition Zone, Annmarie Christine Riley

Theses and Dissertations--Plant and Soil Sciences

Cool season perennial grasses are the foundation of equine nutrition in the transition zone. The objective of this study was to evaluate forage quality using ADF, NDF, IVTDMD, CP, WSC, and ESC and changes in vegetative swards seasonally, diurnally, across species (Kentucky bluegrass, tall fescue, orchardgrass, and perennial ryegrass) and cultivar. This study was conducted in 2015 and 2017 and plots were maintained vegetatively with two to four week mowing. Morning and afternoon sample collection occurred monthly during the growing season. Samples were flash frozen; freeze dried, ground, and scanned using Near Infrared Reflectance Spectroscopy (NIRS) to predict forage quality ...


Changing Oceanic Conditions On The Foraging Patterns Of Cassin’S Auklets, Ptychoramphus Aleuticuschanging Oceanic Conditions On The Foraging Patterns Of Cassin’S Auklets, Ptychoramphus Aleuticus, Clare Flynn Jan 2019

Changing Oceanic Conditions On The Foraging Patterns Of Cassin’S Auklets, Ptychoramphus Aleuticuschanging Oceanic Conditions On The Foraging Patterns Of Cassin’S Auklets, Ptychoramphus Aleuticus, Clare Flynn

Pomona Senior Theses

Cassin’s auklet (Ptychoramphus aleuticus) reproductive success has been monitored on Southeast Farallon Island (SEFI) for the past 45 years. Their productivity has varied with oceanic conditions. The purpose of this study is to connect how oceanic conditions affect Cassin’s auklet foraging behaviors. The California Current System (CCS) can normally maintain high plankton productivity, and thus high seabird productivity, because of coastal upwelling. I hypothesized that lower upwelling and/or higher sea surface temperatures (SSTs) lead Cassin’s auklets to spend more time on intensive foraging behaviors such as flying and diving, and have less time to spend resting ...


Farm To Label: A Critique Of Consumer Activism In The Sustainable Food Movement, Olivia Whitener Jan 2019

Farm To Label: A Critique Of Consumer Activism In The Sustainable Food Movement, Olivia Whitener

Pomona Senior Theses

“Local,” “organic,” “natural,” and “Fairtrade” are just several of the many claims adorning the food products that line grocery store shelves. These promises of environmental sustainability and social responsibility are pillars of the “good food revolution” sweeping the nation as consumers demand alternatives to the products of the industrial food system. Green consumerism, the premise that consumer demand for environmentally sustainable goods will bring about ecologically beneficial outcomes, is at the heart of the sustainable food movement. This thesis takes a critical look at the operation of green consumerism in the food system. It explores the ideology and shortcomings of ...


In The Eye Of The Storm: Houston After Hurricane Harvey, Brandon Tolentino-Serrano Jan 2019

In The Eye Of The Storm: Houston After Hurricane Harvey, Brandon Tolentino-Serrano

Pomona Senior Theses

Situated in one of the wettest climates in America, Houston, TX has had a long history of heavy rains and unprecedented floods. Unfortunately, floods have become more common over the last few decades as climate change increases the frequency and intensity of hurricanes around the globe. To complicate matters further, Houston has quickly sprawled to accommodate over 2.5 billion people. Rapid urbanization has rendered the landscape even more susceptible to floods through excess concretization and watershed disturbance. This thesis traces the history of the Bayou City in relation to the damages caused by Hurricane Harvey. By mapping out the ...


Strain-Specific Protein Interaction And Localization Of Two Strains Of Potato Yellow Dwarf Virus And Functional Domains Of Their Matrix Protein, Chanyong Jang Jan 2019

Strain-Specific Protein Interaction And Localization Of Two Strains Of Potato Yellow Dwarf Virus And Functional Domains Of Their Matrix Protein, Chanyong Jang

Theses and Dissertations--Plant Pathology

Potato yellow dwarf virus (PYDV) is the type species of the genus nucleorhabdovirus which is typified by its nucleotropic characters of the members. The virus accomplishes its replication and morphogenesis in the nuclei of infected cells. Two strains, Constricta strain (CYDV) and Sanguinolenta strain (SYDV) have been described at the level of vector-specificity. CYDV is vectored by Agallia constricta and SYDV is transmitted by Aceratagllia sanguinolenta. The full-length genome of CYDV was sequenced. The 12,792 nt antisense genome encodes seven open reading frames in the order of, nucleocapsid protein (N), unknown protein (X), phosphoprotein (P), movement protein (Y), matrix ...


Associations Between Income, Acculturation, Country Of Origin, And Type Ii Diabetes Among African Immigrants To Ontario, Canada, Girma Aman Goshe Jan 2019

Associations Between Income, Acculturation, Country Of Origin, And Type Ii Diabetes Among African Immigrants To Ontario, Canada, Girma Aman Goshe

Walden Dissertations and Doctoral Studies

Diabetes has become a longstanding public health challenge around the world. Over the last 3 decades, the number of people with Type II diabetes (T2DM) has grown to an epidemic level in Canada. Prior research indicated African immigrants residing in Ontario, Canada experienced a 2â??4 times higher prevalence of T2DM than Canadian-born individuals. The social determinants of health theoretical framework guided this study assessing the relationship of the risk factors with T2DM. A quantitative, cross-sectional design was employed using the 2007â??2014 Canadian Community Health Survey data. The random sample included 1,526 African immigrants residing in Ontario, Canada ...


Male Weight Control: Crowdsourcing And An Intervention To Discover More, Tiffany Rounds Jan 2019

Male Weight Control: Crowdsourcing And An Intervention To Discover More, Tiffany Rounds

Graduate College Dissertations and Theses

Men and women have similar rates of obesity but the combined prevalence of overweight and obesity is higher among men. Men who are overweight are a high-risk group for many obesity-related chronic diseases, as they are more likely to carry excess weight in the abdomen, which is generally more harmful than weight stored in the lower body. Men are also less likely than women to perceive themselves as overweight, and thus are less likely to initiate weight loss through organized weight loss programs. On average, less than 27% of weight loss trial participants have been men.

Internet-based research is a ...


Level Of Satisfaction Among Food Pantry Clients, Staff/Volunteers, And Directors And Its Association With Client Choice In Food Pantry Layouts, Myranda Dunmire Jan 2019

Level Of Satisfaction Among Food Pantry Clients, Staff/Volunteers, And Directors And Its Association With Client Choice In Food Pantry Layouts, Myranda Dunmire

Electronic Theses and Dissertations

Objectives: Food insecurity is an issue in rural communities, particularly among food pantry clients. Food pantries may not provide clients with the opportunity to choose their own foods (client choice), and instead may just give a set amount and type of foods. Client choice is important in regards to client health status as well as perceptions of autonomy and quality of life. Although client choice can be promoted in food pantries, it may be difficult to grasp the process of food pantry transitioning and how well changes such as these may be perceived by clients or food pantry personnel. We ...


Targeted Resequencing Of Crispr Cas9 Mediated Icer Knockout In Sk-Mel-24 Cells, Justin Wheelan Jan 2019

Targeted Resequencing Of Crispr Cas9 Mediated Icer Knockout In Sk-Mel-24 Cells, Justin Wheelan

Theses, Dissertations and Culminating Projects

Inducible cAMP Early Repressor (ICER) is a small transcription factor that originates from an intronic promoter within the cAMP Response Element Modulator (CREM) gene (Molina et al., 1993). ICER acts as a putative tumor suppressor by mediating cAMP antiproliferative activity by competitively binding to cAMP Response Elements (CRE’s) and repressing transcription of genes involved in cell division (Mémin et al., 2002). ICER has been shown to be effectively absent in cancer and suspected to be targeted for proteasomal degradation via ubiquitination (Healey et al., 2013). ICER is most likely regulated via post-translational modifications as a result of mutations on ...


The Role Of Serum Histones In Canine Heat Stroke, Jenna Acutt Jan 2019

The Role Of Serum Histones In Canine Heat Stroke, Jenna Acutt

Scripps Senior Theses

Rising temperatures all over the world has correlated with more frequent heat stroke related injuries and death. This statistic not only applies to humans, but to canines as well, who have similar body temperature thresholds. Recent studies have demonstrated that serum histones, released after cell death from heat stroke, play a role in heat stroke related injuries and death. This proposal aims to determine the severity of the effects caused by serum histone release after heat stroke by exposing selected canine cell lines to cell lysate and purified histones H2A, H2B, H3, and H4, which have been found to be ...


Investigating Neurogenesis As A Veritable Epigenetic Endophenotype For Alzheimer's Disease, Layne Wells Jan 2019

Investigating Neurogenesis As A Veritable Epigenetic Endophenotype For Alzheimer's Disease, Layne Wells

Scripps Senior Theses

Alzheimer's disease (AD) is the most common neurodegenerative disease, characterized by progressive amyloid plaque aggregation, neurofibrillary tangles, and cortical tissue death. As the prevalence of AD is projected to climb in coming years, there is a vested interest in identifying endophenotypes by which to improve diagnostics and direct clinical interventions. The risk for complex disorders, such as AD, is influenced by multiple genetic, environmental, and lifestyle factors. Significant strides have been made in identifying genetic variants linked to AD through the genome-wide association study (GWAS). It has been estimated in more recent years, however, that GWAS-identified variants account for ...


Linking Petal Cell Shape To Pollinator Mode In Mimulus, Emma Bekele Jan 2019

Linking Petal Cell Shape To Pollinator Mode In Mimulus, Emma Bekele

Scripps Senior Theses

Reproduction is essential for all organisms. In plants, reproduction relies on pollination. In addition to large-scale traits such as shape and color, flowers may use traits imperceptible to the naked eye in order to attract pollinators. One such trait may be conical cell shape of petal cells. Previous work has identified conical petal cells as providing a foothold for foraging bees, suggesting that conical cell shape is an adaptation to bee pollination. However, this hypothesis has not been fully tested and requires development of a rigorous methodology for quantifying cell shape. Here, we utilize natural variation in pollinator mode in ...


Why Csas Matter: (Re)Localizing For People-Based Food Networks, Gretchen Alexander Jan 2019

Why Csas Matter: (Re)Localizing For People-Based Food Networks, Gretchen Alexander

Scripps Senior Theses

This thesis details the history of Claremont Market Shares, a Community Sourced Agriculture (CSA) project based out of Claremont, California. By using this project as a jumping off point for discussing local food networks, buzzwords such as "organic" and "local" are analyzed and re-defined. I argue for a people-based food network model over the currently popular 'place-based' that prioritizes producer-consumer relationships. The CSA functions as a sustainable model of this ideology.