The Effects Of Escalated Cocaine Intake On Decision-Making Dynamics, Mcallister Stephens

Theses and Dissertations--Psychology

Cocaine Use Disorder (CUD) is characterized partly by the use of cocaine at the expense of other alternatives, in other words, it is a decision-making pathology (Kalivas & Volkow, 2005). Concurrent choice tasks assess decision-making in a dynamic scenario that more closely resembles real life. Value-based decision-making is an important facet of understanding the addictive properties of drugs of abuse. In order to compare two value-based theories of addiction (habit theory and relative value theory), a concurrent choice task was run in tandem with an escalation procedure. First, animals were trained on a choice task until stable, then trained on …

Surface, Depth And The Ephemeral Experience, Naghmeh Hachempour

College of Graduate Studies: Theses & Dissertations

Music has long been an important medium for fulfilling and expressing emotional needs. In fact, music can become a powerful tool to create emotional responses in humans, such as happiness, sadness, awareness, as we see in recent decades in cinema, social media and advertisement. Today, a combination of different media is used to arouse our emotion and feeling, but often music has been used to accompany a visual realization, rather than vice versa. In my work I explore new modes of communication between people and sound by transfiguring music notation to a visual graphic. The scope and scale of my …

Understanding Metrics Of Stress In The Context Of Invasion History: The Case Of The Brown Treesnake (Boiga Irregularis), Natalie Claunch, Ignacio Moore, Heather L. Waye, Laura Schoenle, Samantha J. Oakey, Robert N. Reed, Christina Romagosa

Biology Publications

Invasive species can exert rapid depletion of resources after introduction and, in turn, affect their own population density. Additionally, management actions can have direct and indirect effects on demography. Physiological variables can predict demographic change but are often restricted to snapshots-in-time and delayed confirmation of changes in population density reduces their utility. To evaluate the relationships between physiology and demography, we assessed metrics of individual and demographic stress (baseline and 1-h corticosterone (CORT), body condition and bacterial killing ability) in the invasive snake Boiga irregularis on Guam collected in intervals of 10–15 years. We also assessed potential discrepancies between different …

Prevalence And Transmission Of Selected Infectious Disease-Causing Enzootic And Zoonotic Pathogens By Haematophagous Camel Keds, Hippobosca Camelina, In Laisamis, Marsabit County Of Northern Kenya, Kevin Kidambasi

All Master’s Theses

Hippobosca camelina, also known as camel keds or camel louse flies, are the most common blood-sucking ectoparasites infesting camels in, Laisamis Ward, northern Kenya. The ability of these obligate haematophagous biting flies to transmit infectious agents is less understood. The aims of this study were to; I) screen for protozoan, bacterial and viral pathogens in camels and their biting keds, H. camelina, sampled from Laisamis Ward, Marsabit county II) assess the potential utility of camel keds in xenosurveillance of camel haemopathogens, and III) study the capacity of camel keds to transmit haemopathogens to experimental mice. Blood samples (n …

Phosphorus Availability And Carrot Growth As Influenced By Phosphate Rock Management Under Acid Soils In Murang'a And Tharaka Nithi Counties, Edwin Nderitu Mwangi

All Master’s Theses

Soils from Central Highlands of Kenya are characterized by low phosphorus (P) availability with crops exhibiting P deficiency symptoms. The objective was therefore to determine the P sorption characteristics of the soils and to assess their standard P requirements in order to recommend the P fertilizer required for different crops in the area. Besides, the study aimed at assessing the efficiency of lemon and pineapple juices and the concentration and time needed to release more than 50% of available P from phosphate rock (PR), and; the effect of different types of PR management on carrot yields, nutrient uptake, and P-use …

Microbial Contaminants In Wild Harvested And Trade Dedible Long-Horned Grasshopper, Ruspolia Differens (Orthoptera: Tettigoniidae) Inuganda, Simon Labu

All Master’s Theses

Edible insects are now globally recognisedas alternative sources of food and feed. Currently, over 470 spp of insects are consumed in Africa alone, with Ruspolia differensbeing the most common in central Uganda.Harvesting and trading of these insects is done informally andthe post-harvest handling, processingand marketing involvesseveral people. These coupled with other factors increase the risk of microbial contamination of R. differens. This study identifiedand characterisedbacterial and fungal microbes found in R. differensalong the value chain, and also evaluated the safety levels of R. differensat the different points, including their different districts of origin. Samples of wholeR. differens were collected from …

Visual Infrastructures Of Covid-19 Messaging, Julia Ross, Claudine Jaenichen

Art Faculty Articles and Research

Infecting more than two hundred and nineteen million people internationally as of September 2021, SARS-Cov2 (COVID-19) remains a major health crisis despite the availability of vaccines in many countries and publicized guidance on effective preventative measures (WHO, 2021). To combat the spread of the virus, governments worldwide have found themselves relying on their ability to exert control over health behaviors in public and private spaces. Visual communication, which includes both graphics and text, is an integral component of how these behavioral advisories are communicated to the public. Authorities translate scientific information into digestible designs for the public to achieve effective …

Bridges To A New Era: A Report On The Past, Present, And Potential Future Of Tribal Co-Management On Federal Public Lands, Monte Mills, Martin Nie

Articles

Deep ancestral and traditional connections tie many Native Nations to the federal government’s public lands. The removal of these lands from indigenous control, their acquisition by the federal government, and the federal government’s approach to their management are largely premised upon the erasure or marginalization of those connections. Both physically and legally, Indian tribes have been removed from the landscapes they occupied since time immemorial. Rather than centering, honoring, and using those connections, the current discussion of tribal co-management of federal public lands is mostly bereft of this full legal and historical context.

Compounding these limitations is the considerable discretion …

The Automated Administrative State: A Crisis Of Legitimacy, Ryan Calo, Danielle Keats Citron

Articles

The legitimacy of the administrative state is premised on our faith in agency expertise. Despite their extra-constitutional structure, administrative agencies have been on firm footing for a long time in reverence to their critical role in governing a complex, evolving society. They are delegated enormous power because they respond expertly and nimbly to evolving conditions. In recent decades, state and federal agencies have embraced a novel mode of operation: automation. Agencies rely more and more on software and algorithms in carrying out their delegated responsibilities. The automated administrative state, however, is demonstrably riddled with concerns. Legal challenges regarding the denial …

Can User Interface Design Choices Alter Perceptions Of Time Passage?, James Gaskin

Faculty Publications

When a task is dull, time seems to unhelpfully dilate. This can have serious impacts on job satisfaction, burnout, and turnover – all of which impact employee well-being and the bottom line. Without changing the task, could a user interface take advantage of psychology-driven, theoretically-supported design decisions to make time seem to contract? If such is the case, we might, without much cost, partially alleviate employee suffering due to task fatigue and disinterest by making simple changes to the user interface. While psychology research and user interface design have intersected abundantly in extant literature, no study has empirically tested whether …

Strategies For Reducing Greenhouse Gases From Liquid Dairy Manure, Vera Sokolov

Theses and Dissertations (Comprehensive)

Livestock production, including the storage, handling, and spreading of manure, are among the largest contributors to greenhouse gas emissions from the agricultural sector. Liquid dairy manure storages are hot spots of methane (CH₄), nitrous oxide (N₂O) and ammonia (NH₃). Both CH₄ and N₂O are greenhouse gases (GHG) which contribute to global warming, while NH₃ is an indirect source of N₂O and a risk to human health. Reducing emissions from manure storages is important not only for protection of environment and humans, but also for conserving the nutrients in …

A Bioinformatic Analysis Of The Biosynthesis Of Carotenoids In The Copepod Tigriopus Californicus, Anchalya Balasubramaniam

Theses and Dissertations (Comprehensive)

Abstract

Biological pigments, also called biochromes, are coloured compounds which are displayed by a variety of life forms, including animals, due to selective colour absorption. The combination of light absorption and reflection enables each pigment to portray a distinct colour which results in the broad spectrum of colours we observe in our surroundings. Carotenoids are a large group of yellow, orange, and red biological pigments found in living organisms. Our current biomolecular knowledge of carotenoids is heavily derived from studying the pathway in photosynthetic prokaryotes, bacteria, fungi, and plants. Carotenoid pigments are exceptionally multifunctional as they act as photo-protectors against …

A Micromorphometric Study On The Common Bile Duct And Major Duodenal Papilla Of Thedomestic Swine, Ivaylo Stefanov Stefanov

Turkish Journal of Veterinary & Animal Sciences

The aim of the current study was to perform a comparative micromorphometric study on the thickness of mucosa, fibromuscular layer, glandular zone, serosa, and subserous layer, as well as of the entire wall of extra- and intramural parts of the porcine common bile duct in immature and mature animals. This micromorphometric study also evaluated the height and width of the lining epithelium, glandular epithelium, and goblet cells in 2-month, 6-month, and 3-year old male pigs. It was found that significant age-dependent differences in the studied parameters exist. Some differences in the studied parameters were also detected between different parts of …

Assessment Of Blood Metabolites, Serum Enzymes, And Serum Minerals In Dietaryprobiotics Fed Captive Asian Elephants, Dharmendra Chharang, Sheela Choudhary, Lenin Bhatt

Turkish Journal of Veterinary & Animal Sciences

This study was organised to evaluate the effect of supplementation of dietary probiotics on blood biochemistry in 18 captive Asian elephants of 30-62 years age and 3495 ± 133.34 kg body weight (BW) for two months. To observe the results in different groups, i.e. control with no probiotic (T$_{1}$) and the other two with probiotics which contained 1 × 10$^{9}$ CFU/g concentrate of Lactobacillus acidophilus (T$_{2}$) and 1 × 10$^{9}$ CFU/g concentrate of Saccharomyces cerevisiae (T$_{3}$), they were given 50 kg BW/day (dose range 48-89 g per day/elephant). The elephants were randomly divided into three groups with six elephants each. …

Gross Anatomy And Mineralization Of Larynx, Trachea And Syrinx In Gray Heron(Ardea Cinerea), Şükrü Hakan Atalgin, Mehmet Can, Soner Bekmezci̇

Turkish Journal of Veterinary & Animal Sciences

This study aims to determine the normal anatomical features of the larynx, trachea, and syrinx of the heron birds and to identify the cartilage and mineralized areas with red Alcian blue staining. Three adult heron birds' larynx, trachea, and syrinx were used as materials in the study. Sex of the birds was neglected. With the staining of alizarin red Alcian blue, cartilage tissues were blue, and mineralized areas with calcium accumulation were red. In the macroscopic examination, mons laryngealis was seen on the caudal side of the tongue on the larynx under a stereomicroscope. It was observed that there was …

Effects Of Colemanite, Ulexite, And Etibor-48 On Rumen Development Of Akkaraman Lambs, Betül Zehra Sariçi̇çek, Bi̇rgül Yildirim

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to determine the effect of addition colemanite, ulexite, and etibor-48 to diet including low Ca and P on the rumen development of Akkaraman lambs. Five treatment groups were consisted of standard Ca and P content (S), low Ca and P content (L), colemanite additive (C), ulexite additive (U), and etibor-48 additive (E) groups. Fifty Akkaraman male lamb weaned at 2.5 months old were used. Lambs were distributed to individual cages with 10 heads in each group; at the end of 90 days, 6 animals from each group were slaughtered and volumetric development of rumen and …

Adaptive Management And Nepa: How To Reconcile Predictive Assessment In The Face Of Uncertainty With Natural Resource Management Flexibility And Success, Robert L. Glicksman, Jarryd Page

GW Law Faculty Publications & Other Works

For years, public lands scholars lamented the limited success that federal agencies had in applying adaptive management decisionmaking processes in pursuit of their natural resource management responsibilities. Agency duties to comply with the National Environmental Policy Act (NEPA) have played a role in creating a disconnect between the theory and application of adaptive management. NEPA was designed to force agencies to predict (and consider ways to avoid) the adverse environmental impacts of actions before committing to them. Adaptive management is built on the premise that, at least in conditions of uncertainty such as those that often characterize natural resource management, …

Fall 2021 Supplement To Brauneis & Schechter, Copyright: A Contemporary Approach, Robert Brauneis, Roger E. Schechter

GW Law Faculty Publications & Other Works

This Fall 2021 Supplement is the product of our effort to capture important developments in copyright law since the publication of the second edition of Copyright: A Contemporary Approach. It includes two new principal cases, both Supreme Court decisions: the 2021 fair use decision in Google LLC v. Oracle America, Inc., and the 2020 decision about copyright protection for state statutes in Georgia v. Public.Resources.Org. The supplement also includes notes on many other cases, and a few new features that we thought would enhance study of U.S. copyright law. In light of the passage of the Music Modernization Act in …

Quality, Nutritional, And Sensory Attributes Of Naked Neck Chicken Eggs As Influenced Byproduction Systems And Dietary Regimens, Erum Bughio, Jibran Hussain, Athar Mahmud, Anjum Khalique, Ahmed Sultan Jatoi, Shahid Mehmood, Muhammad Usman, Sohail Ahmad

Turkish Journal of Veterinary & Animal Sciences

This study evaluated the quality, nutritional, and sensory attributes of Naked Neck chicken eggs when birds were subjected to different housing and nutritional regimens. Birds were maintained in two rearing systems (intensive & free-range) with five dietary treatments based on commercial feed (CF) and kitchen waste (KW), i.e. 100% CF, 75% CF + 25% KW, 50% CF + 50% KW, 25% CF + 75% KW, and 100% KW. A total of 500 eggs, comprised of ten per replicate (50 per treatment) were used. Higher (p ≤ 0.05) shell weight and thickness, shape index, egg volume, yolk index and weight, egg …

The Effects Of Dietary Fish Protein Hydrolysate-Based Supplementation On Sensoryproperties And Meat Quality Of Broiler Chicken, Amir Reza Shaviklo, Amir Hossein Alizadeh Ghamsari, Yasaman Etemadian, Fereidoon Rafipour

Turkish Journal of Veterinary & Animal Sciences

The aim of the present study was to determine the effect of supplement fish protein hydrolysate-based to broiler feed on sensory properties and meat quality. A total of 400 pieces of 1-day-old male broiler chicks (Ross 308) received 4 dietary levels (0, 2.5, 5.0, 7.5%) of fish protein hydrolysate-based supplement (FPHS) in the basal diet mix for 42 days. Quality index-derived method (QIM) was used for assessment of chicken carcass. Quantitative descriptive analysis method was applied to study sensory properties of the chicken fillets. Water holding capacity (WHC), cook loss, color, meat texture were also determined. The carcass odor and …

Effect Of Different Doses Of Hydrated C$_{60}$ Fullerene Nanoparticles On Ram Semen Duringcool Storage, Şeyma Özer Kaya, İbrahi̇m Hali̇l Güngör, Serap Dayan Ci̇nkara, Tutku Can Acisu, Recep Hakki Koca, Serkan Ali̇ Akarsu, Coşkun Can, Aslihan Çakir, İrfan Yilmaz, Muhammed Sami̇ Halici, Seyfetti̇n Gür, Mustafa Sönmez, Gaffari̇ Türk

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to determine the effect of different doses of hydrated C$_{60}$ fullerene (C$_{60}$HyFn) nanoparticles on ram semen during cool storage at 5 °C. Semen samples were collected from 7 healthy Akkaraman rams by artificial vagina during nonbreeding season (April) 3 times for two weeks (3 replications), and samples having good initial sperm motility (> 70 %) and count (> 2 billion / mL) were pooled and diluted with tris-egg yolk based extender at 37 °C. Then, the diluted semen samples were divided into 15 aliquots control and 14 different C60HyFn groups (25 nM, 50 nM, …

Genetic Parameter Estimates Of Fear, Growth, And Carcass Characteristics In Japanese Quail, Doğan Nari̇nç, Bariş Aybars Genç

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to estimate the heritability values of tonic immobility duration, several growth traits, and their genetic relationships with some slaughter traits. Fearfulness reaction was examined using tonic immobility (TI) response at 5 and 6 weeks of age. All birds were slaughtered at 6 weeks of age to measure carcass yield (CY), and percentage of breast (BY), leg (LY), wing (WY), abdominal fat (AFY). Heritability estimates for the TI durations and body weights measured at 5 and 6 weeks of age were 0.16, 0.20, and 0.46, 0.44, respectively. Heritability estimates for growth curve parameters and inflection …

Effects Of Dietary Guar Meal With Or Without Beta-Mannanase On The Egg Yolk Fatty Acids,Cholesterol, And Some Blood Parameters Of Laying Hens, Süleyman Çalişlar

Turkish Journal of Veterinary & Animal Sciences

In this study, the effects of adding enzyme to the diets containing guar meal (GM) on the egg yolk fatty acids, cholesterol, and some blood plasma parameters of hens were examined. This study was carried out in the chicken coop of the Experimental Animals Ethics Committee, Faculty of Agriculture. This study constitutes the second phase of the study titled ?Effects of dietary guar meal with or without beta-mannanase on performance and egg quality traits in laying hens?, previously published. The experimental period lasted 126 days. Ninety-six Lohman Brown hens at the age of 56 weeks were and kept in individual …

Physiological Stress Responding During Negative Memory Recollection And The Habitual Use Of Psychological Coping Strategies, Kyle P. Rawn

Theses and Dissertations--Psychology

Coping represents an important process for stress: how effectively one copes dictates how a person experiences stress. However, research has not yet examined how a person’s long-term coping habits are related to their physiological stress responding during a particular situation. The current study addresses this through examination of skin conductance level (SCL) trajectories and coping tendencies (i.e. habitual use of coping strategies) during an autobiographical interview. 167 college students completed questionnaires assessing their demographics and their frequency of use for fourteen coping strategies. SCL was collected while participants recalled and discussed a negative family memory from their childhood. Multilevel modeling …

Distractors As A Tool To Increase “Self-Control” In Pigeons (Columba Livia), Peyton Mueller

Theses and Dissertations--Psychology

In the successive delay-discounting task, all trials start with a stimulus to which a response results in a small amount of reinforcement (smaller-sooner). If no response is made, the stimulus changes and a response results in a larger reinforcer (larger-later). The purpose of this study was to examine the use of a non-reinforced distractor (a stimulus to which responding has no programmed consequence) as a method of increasing the proportion of larger-later (LL) choices in a successive delay-discounting task. Earlier research studying the use of distractors may have inadvertently associated the distractor with reinforcement. Four experiments were conducted and each …

Pharmacokinetics And Reward-Related Behaviors Of Ethanol In Male And Female Japanese Quail (Coturnix Japonica), Shannon Eaton

Theses and Dissertations--Psychology

Ethanol is one of the most widely used and abused drugs. Problem use is associated with many different health problems and the economic burden is in the billions of dollars. Additionally, many people have difficulty controlling their ethanol consumption and about 5% of adults end up with an alcohol use disorder (AUD). Many people with an AUD often find themselves in a cycle of binge, remission, and relapse.

Following ethanol consumption ethanol enters the bloodstream from the small intestine where it gets distributed to peripheral tissues. Ethanol in the bloodstream is cleared from the system by the liver. The primary …

Russo-Ukrainian Patterns Of Genocide In The Twentieth Century, Amos Fox

Journal of Strategic Security

Russo-Ukrainian relations in the 20th Century are dominated by genocide. Using Raphel Lemkin and Martin Shaw as a guide, one finds that Russo-Ukrainian relations during the 20th Century was a long period of genocidal action, linked by periods of punctuated genocides. These genocides included several political genocides that quelled Ukrainian nationalism and independence and kept it subjugated to Soviet Russia. Soviet Russia's genocide during the 20th Century was a carryover from Imperial Russia treatment of Ukraine, the arch of which carries over into today's relations between the two countries. Understanding this long period of genocide helps make sense of the …

Avian Biodiversity Of The Indian River Lagoon System, Florida, Richard L. Turner

Ocean Engineering and Marine Sciences Faculty Publications

Despite claims about high avian biodiversity in the Indian River Lagoon system, previous efforts to inventory the birds have been limited in geographic extent or in habitat. Compilation of a list of birds could rely on many resources, but ones of widespread availability, greatest historical record, and highest density of sites are two citizen-science projects: the Christmas Bird Count (CBC) and eBird. Lists of species were harvested from 17 CBC sites (‘‘circles’’) back to 1910 and from 432 eBird sites (‘‘hotspots’’) since 2002 within the boundaries of the Indian River Lagoon National Estuary Program (IRLNEP). In addition to lagoon waters, …

Biodiversity Of The Indian River Lagoon System: A Cautionary Tale From The Birds, Richard L. Turner

Ocean Engineering and Marine Sciences Faculty Publications

Prevailing dogma on comparative biodiversity of the Indian River Lagoon (IRL) stems mainly from one claim about ichthyofauna and two about avifauna. The extensive network of birdwatchers, clarity of bird taxonomy, long history of the Christmas Bird Count (CBC), and burgeoning database on ebird.org make birds excellent for geographic comparison. The 1985 claim that Merritt Island CBCs are often the ‘‘most speciose count’’ in the U.S. is unfounded. CBCs there in 1970–1985 never had the highest count, even compared to the nearby Cocoa site. For the 114th CBC (2013), it ranked 11th in Florida and 44th nationally. The 1989 claim …

Investigating The Roles Of Lipids In Staphylococcus Aureus Infection, Xi Chen

Dissertations

The Gram-positive bacterium Staphylococcus aureus is a major threat to public health and causes a multitude of infections, ranging from mild skin and soft infection, to more severe diseases including sepsis, osteomyelitis and infective endocarditis. As a successful pathogen, S. aureus employs various mechanisms to invade host tissues, evade immune responses, and survive in the host environment. One critical adaptive trait of S. aureus that promotes virulence and survival is the ability to maintain membrane homeostasis via flexible modifications to its lipid composition in response to the surrounding lipid environment. Phospholipids are the major component of the bacterial membrane and …