Social and Behavioral Sciences Commons^™

Fate And Dissemination Of Salmonella Reading In Market-Age Turkeys At Processing Using Oral Gavage Challenge Model, Aaron Ashcraft

Graduate Theses and Dissertations

This study aimed to evaluate the fate and dissemination of Salmonella Reading (SR) in market-age turkeys using an oral gavage challenge model. One hundred twenty-eight-week-old commercial turkey hens were moved from commercial production to research facilities. Upon arrival, a combination of enrofloxacin, 10 mg/kg, and florfenicol, 20 mg/kg, were orally administered sequentially before comingled placement on fresh pine shavings. Turkeys were challenged with 108 cfu SR by oral gavage on days 4 and 7 post-placement. Subsets were subjected to simulated commercial processing on days 14 (n=40), 21 (n=40) and 28 (n=32) post-placement (corresponding to 10, 11, and 12 weeks of …

Evaluation Of Selected Bacillus Direct-Fed Microbial Candidates In Reduced Energy Diets On Live Performance, Carcass Characteristics, And Foot Pad Dermatitis, Kyle Teague

Graduate Theses and Dissertations

Bacillus spp. are ubiquitous, Gram-positive, spore forming bacteria that are commonly recovered from the environment and gastrointestinal tract (GIT) of poultry. These spores are capable of withstanding harsh condition such as feed pelletization, which facilitates inclusion in poultry feeds. Once ingested by the bird, spores germinate into metabolically active vegetative cells which can produce extracellular enzymes which can hydrolyze otherwise indigestible components of the feed. Soybean meal (SBM) is the gold standard vegetable protein source for non-ruminant animals worldwide and is included in practically all poultry diets in the United States at levels ranging from 10 to more than 30%. …

The Effect Of Endorser Credibility On Purchase Intention Based On Golf Products’ Attribute: Elaboration Likelihood Model Perspective. Golf Equipment Vs. Golf Apparel, Jongyeol Yoo

Graduate Theses and Dissertations

The purpose of the study is to examine the main features of a sport celebrity which make them credible as an endorser such that it influences the consumer’s purchase intention based on the products’ attributes. The study used a non-probability sample, a convenient sample method, limiting the generalization possibilities. A total of 401 surveys were collected for a golf apparel study while a total of 397 surveys were collected for a golf equipment study.

Findings of the golf apparel study indicated that trustworthiness, attitude toward advertisement, and involvement in golf positively influence on purchase intentions. On the other hand, attractiveness, …

Sensitive Periods For Psychosocial Risk In Childhood And Adolescence And Cardiometabolic Outcomes In Young Adulthood, Jenalee R. Doom, Kenia M. Rivera, Estela Blanco, Raquel Burrows, Paulina Correa-Burrows, Patricia L. East, Betsy Lozoff, Sheila Gahagan

Psychology: Faculty Scholarship

Greater psychosocial risk in childhood and adolescence predicts poorer cardiometabolic outcomes in adulthood. We assessed whether the timing of psychosocial risk from infancy through adolescence predicts cardiometabolic outcomes in young adulthood. Young adults and their mothers participated in a longitudinal study beginning in infancy in Santiago, Chile (N = 1040). At infancy, 5 years, 10 years, and adolescence, mothers reported on depressive symptoms, stressful experiences, support for child development in the home, father absence, parental education, and socioeconomic status (SES) to create a psychosocial risk composite at each time point. Young adults (52.1% female; 21–27 years) provided fasting serum samples …

On Strategy-Proofness And The Salience Of Single-Peakedness In A Private Goods Economy, Shurojit Chatterji, Masso Jordi, Serizawa Shigehiro

Research Collection School Of Economics

We consider strategy-proof rules operating on a rich domain of preference profiles in a set up where multiple private goods have to be assigned to a set of agents with entitlements where preferences display satiation. We show that if the rule is in addition "desirable", in that it is tops-only, continuous, same-sided and individually rational with respect to the entitlements, then the preferences in the domain have to satisfy a variant of single-peakedness (referred to as smilattice single-peakedness). We also provide a converse of this main finding. It turns our that this domain coincides with the one already identified in …

Testing For Structural Changes In Factor Models Via A Nonparametric Regression, Liangjun Su, Xia Wang

Research Collection School Of Economics

We propose a model-free test for structural changes in factor models. The basic idea is to regress the data on commonly estimated factors by local smoothing and compare the fitted values of time-varying factor loadings with those of time-invariant factor loadings estimated via principal component analysis. By construction, the test is designed to be powerful against both smooth structural changes and sudden structural breaks with a possibly unknown number of breaks and unknown break dates in the factor loadings. No restrictions on the form of alternatives or trimming of boundary regions near the beginning or end of the sample period …

Effect Of Monetary Policy On The Nigerian Stock Market: A Smooth Transition Autoregressive Approach, Babaginda Jamilu S., Khan Asad-Ul I.

CBN Journal of Applied Statistics (JAS)

This paper examines the nonlinear effect of monetary policy decisions on the performance of the Nigerian Stock Exchange market, by employing the Smooth Transition Autoregressive (STAR) model on monthly data from 2013 M4 to 2019 M12 for the All Share Index and monetary policy instrument. This study considers the two regimes characterizing the stock market, which are the lower regime (the bear market) and the upper regime (the bull market). The results show evidence of nonlinear effect of monetary policy on the stock exchange market. Monetary policy rate, money supply, lagged monetary policy rate and lagged treasury bill rate are …

Markovian Approach To Stock Price Modelling In The Nigerian Oil And Gas Sector, Ayo Adekunle S., Uwabor Eboigbe S.

CBN Journal of Applied Statistics (JAS)

The study investigates the stock price movement of quoted Nigerian oil and gas firms using the Markovian model. Specifically, the study estimates the change in likelihoods and steady-state distribution of the share prices of the firms to determine the average time spent by the share price to move to another state and the turnover rate of the selected stocks. Markov chain-based stochastic modelling approach was employed by using the daily closing share prices of all the seven oil and gas firms quoted on the Nigerian Stock Exchange from April 2017 to January 2020. The study finds that the transition probabilities …

Purchasing Power Parity Approach To Exchange Rate Misalignment In Nigeria, Nakorji Musa, Agboegbulem Ngozi T. I., Gaiya Blessing A., Atoi Ngozi V.

CBN Journal of Applied Statistics (JAS)

This study examines the purchasing power parity (PPP) approach to the determination of exchange rate misalignment in Nigeria by using two variants of the PPP: the absolute PPP (aPPP) and the relative PPP (rPPP). Data on the Nigerian Naira to US Dollar (N/$), British Pound (N/£) and Chinese Yuan (N/¥) interbank exchange rates, Nigeria consumer price index and Inflation as well as the US, UK and China consumer price indices and inflation rates spanning 2008:M1 to 2018:M12 were utilized. A recently modified fractional cointegration framework was employed, taking care of smooth structural breaks and nonlinearity, while the unit root tests …

Analysing User Experience Of Mobile Banking Applications In Nigeria: A Text Mining Approach, Omotosho Babatunde S.

CBN Journal of Applied Statistics (JAS)

This paper analyses textual data mined from 37,460 reviews written by mobile banking application users in Nigeria over the period November 2012 – July 2020. On a scale of 1 to 5 (5 being the best), the average user rating for the twenty-two apps included in our sample is 3.5; with the apps deployed by non-interest banks having the highest average rating of 4.0 and those by commercial banks with national authorisation having the least rating of 3.4. Results from the sentiment analysis reveal that the share of positive sentiment words (17.8%) in the corpus more than double that of …

Money And Foreign Exchange Markets Dynamics In Nigeria: A Multivariate Garch Approach, Atoi Ngozi V., Nwambeke Chinedu G.

CBN Journal of Applied Statistics (JAS)

This study examines the money market and foreign exchange market dynamics in Nigeria by estimating the dynamic correlation and volatility spillovers between the Nigeria Naira/US Dollar Bureau De Change (BDC) exchange rate and interbank call rate with data from January 2007 to August 2019. The study employs a dynamic conditional correlation form of the GARCH model (DCC-GARCH) to assess the nature of correlation, while an unrestricted bivariate BEKK-GARCH (1, 1) form of the multivariate GARCH model is utilized to investigate shocks and volatility spillover of the rates. The estimated DCC-GARCH (1, 1) reveals that interest rate and exchange rate are …

Impact Of Government Expenditure On Economic Growth In Nigeria, 1970-2019, Aluthge Chandana, Jibir Adamu, Abdu Musa

CBN Journal of Applied Statistics (JAS)

This study investigates the impact of Nigerian government expenditure (disaggregated into capital and recurrent) on economic growth using time series data for the period 1970-2019. The paper employs Autoregressive Distributed Lag (ARDL) model. To ensure robustness of results, the study accounts for structural breaks in the unit root test and the co-integration analysis. The key findings of the study are that capital expenditure has positive and significant impact on economic growth both in the short run and long run while recurrent expenditure does not have significant impact on economic growth both in the short run and long run. The study …

Adelaidecyc At Semeval-2020 Task 12: Ensemble Of Classifiers For Offensive Language Detection In Social Media, Mahen Herath, Thushari Atapattu, Hoang Anh Dung, Christoph Treude, Katrina Falkner

Research Collection School Of Computing and Information Systems

This paper describes the systems our team (AdelaideCyC) has developed for SemEval Task 12 (OffensEval 2020) to detect offensive language in social media. The challenge focuses on three subtasks – offensive language identification (subtask A), offense type identification (subtask B), and offense target identification (subtask C). Our team has participated in all the three subtasks. We have developed machine learning and deep learning-based ensembles of models. We have achieved F1-scores of 0.906, 0.552, and 0.623 in subtask A, B, and C respectively. While our performance scores are promising for subtask A, the results demonstrate that subtask B and C still …

Unpacking Cosmopolitan Memory, Hiro Saito

Research Collection School of Social Sciences

Cosmopolitanism is here to stay despite rising nationalist sentiments and movements against the forces of globalization. To be sure, some groups are suspicious of, and even hostile to, the increasing numbers of foreigners and foreign products coming into their countries, but other groups accept and embrace more opportunities to interact with foreign others and cultures. Similarly, while policies and laws continue to take the nation-state as a primary frame of reference, they have also incorporated the idea of humanity to expand rights for both citizens and foreign residents. A globalizing world is full of these contradictory forces of cosmopolitanism and …

Text As Data: An Overview, Kenneth Benoit

Research Collection School of Social Sciences

When it comes to textual data, the fields of political science and international relations face a genuine embarrassment of riches. Never before has so much text been so readily available on such a wide variety of topics that concern our discipline. Legislative debates, party manifestos, committee transcripts, candidate and other political speeches, lobbying documents, court opinions, laws – not only are all recorded and published today, but in many cases this is in a readily available form that is easily converted into structured data for systematic analysis.

Quasi-Bayesian Inference For Production Frontiers, Xiaobin Liu, Thomas Tao Yang, Yichong Zhang

Research Collection School Of Economics

We propose a quasi-Bayesian method to conduct inference for the production frontier. This approach combines multiple first-stage extreme quantile estimates by the quasi-Bayesian method to produce the point estimate and confidence interval for the production frontier. We show the asymptotic properties of the proposed estimator and the validity of the inference procedure. The finite sample performance of our method is illustrated through simulations and an empirical application.

Density Of Demand And The Consumer Benefit From Uber, Matthew H. Shapiro

Research Collection School Of Economics

Uber has attracted the attention of economists and policy makers for its innovations in the taxicab market and its potential for significant consumer welfare gains. The size of this gain depends in part on whether these innovations permit transactions previously costly or infeasible. Using New York City — the largest taxi market in the country — as its context, this paper estimates the level of any technological advantage Uber has over hail taxis in matching to consumers. I combine publicly available transportation data with data scraped from Uber and traffic cameras to estimate a model of the demand for transportation …

Agent-Relative Consequentialism And Collective Self-Defeat, Matthew Hammerton

Research Collection School of Social Sciences

Andrew Forcehimes and Luke Semrau argue that agent-relative consequentialism is implausible because in some circumstances it classes an act as impermissible yet holds that the outcome of all agents performing that impermissible act is preferable. I argue that their problem is closely related to Derek Parfit's problem of ‘direct collective self-defeat’ and show how Parfit's plausible solution to his problem can be adapted to solve their problem.

Urbanization Policy And Economic Development: A Quantitative Analysis Of China's Differential Hukou Reforms, Wen-Tai Hsu, Lin Ma

Research Collection School Of Economics

The household registration system (hukou system) in China has hampered rural-urban migration by posing large migration friction. The system has been gradually relaxed in the past few decades, but the reforms have been differential in city size and by the coastal-inland divide. We find a striking contrast in the migration patterns between years 2005 and 2015; rural people tended to move more to the coastal urban region in 2005, but more to the inland urban region in 2015. We calibrate a spatial quantitative model to the world economy in both years with China being divided into the rural, coastal urban, …

Point Optimal Testing With Roots That Are Functionally Local To Unity, Anna Bykhovskaya, Peter C. B. Phillips

Research Collection School Of Economics

Limit theory for regressions involving local to unit roots (LURs) is now used extensively in time series econometric work, establishing power properties for unit root and cointegration tests, assisting the construction of uniform confidence intervals for autoregressive coefficients, and enabling the development of methods robust to departures from unit roots. The present paper shows how to generalize LUR asymptotics to cases where the localized departure from unity is a time varying function rather than a constant. Such a functional local unit root (FLUR) model has much greater generality and encompasses many cases of additional interest that appear in practical work, …

The Convergence Of Water, Electricity And Gas Industries: Implications For Ppp Design And Regulation, Sock Yong Phang

Research Collection School Of Economics

In several countries that have privatised their utilities, power and water are separate industries regulated by sector-specific regulators. In a parallel development, desalination has become an important source of water supply in countries where there is a shortage of cheap and clean freshwater. Where the energy source is gas, the use of gas-fired power plants to supply electricity for desalination links the water, electricity and gas industries. We use the case of the financial collapse of an integrated water and power project to illustrate the problems that can arise from such convergence, and to draw lessons for firms, Public-Private Partnerships …

Asymptotic Properties Of Least Squares Estimator In Local To Unity Processes With Fractional Gaussian Noises, Xiaohu Wang, Weilin Xiao, Jun Yu

Research Collection School Of Economics

This paper derives asymptotic properties of the least squares estimator of the autoregressive parameter in local to unity processes with errors being fractional Gaussian noises with the Hurst parameter H. It is shown that the estimator is consistent when H ∈ (0, 1). Moreover, the rate of convergence is n when H ∈ [0.5, 1). The rate of convergence is n^2H when H ∈ (0, 0.5). Furthermore, the limit distribution of the centered least squares estimator depends on H. When H = 0.5, the limit distribution is the same as that obtained in Phillips (1987a) for the local to …

Diagnostic Tests For Homoskedasticity In Spatial Cross-Sectional Or Panel Models, Badi K. Baltagi, Alain Pirotte, Zhenlin Yang

Research Collection School Of Economics

We propose an Adjusted Quasi-Score (AQS) method for constructing tests for homoskedasticity in spatial econometric models. We first obtain an AQS function by adjusting the score-type function from the given model to achieve unbiasedness, and then develop an Outer-Product-of-Martingale-Difference (OPMD) estimate of its variance. In standard problems where a genuine (quasi) score vector is available, the AQS-OPMD method leads to finite sample improved tests over the usual methods. More importantly in non-standard problems where a genuine (quasi) score is not available and the usual methods fail, the proposed AQS-OPMD method provides feasible solutions. The AQS tests are formally derived and …

Decomposing Duration Dependence: Skill Depreciation Vs. Statistical Discrimination, Ismail Baydur, Jianhuan Xu

Research Collection School Of Economics

This paper develops a random matching model with unobserved worker heterogeneity and learning about worker types from unemployment duration. The model features negative duration dependence that stems from unobserved heterogeneity as well as statistical discrimination and skill depreciation. We estimate our model using micro-level data from Current Population Survey (CPS) and we decompose the contribution of each channel to job finding rates by duration. We find that shutting down statistical discrimination substantially increases the job finding rates of the long-term unemployed while skill depreciation mainly affects the medium-term unemployed.

Mediating Consumer Financial Disputes: Financial Industry Disputes Resolution Centre's Unique House Style, Eunice Chua, Beverly Wee

Research Collection Yong Pung How School Of Law

The Financial Industry Disputes Resolution Centre (“FIDReC”) was established in August 2005 with the purpose of providing a low-cost avenue for consumers to resolve their disputes with financial institutions. This article seeks to outline the role of FIDReC and its processes and, at the same time, seeks to define the house style of mediation that has served FIDReC well over the years. This article also highlights some of the different techniques adopted by FIDReC mediators in the course of facilitating the mediation.

Complex Societies And The Growth Of The Law, Daniel Martin Katz, Corinna Coupette, Janis Beckedorf, Dirk Hartung

Research Collection Yong Pung How School Of Law

While many informal factors influence how people interact, modern societies rely upon law as a primary mechanism to formally control human behaviour. How legal rules impact societal development depends on the interplay between two types of actors: the people who create the rules and the people to which the rules potentially apply. We hypothesise that an increasingly diverse and interconnected society might create increasingly diverse and interconnected rules, and assert that legal networks provide a useful lens through which to observe the interaction between law and society. To evaluate these propositions, we present a novel and generalizable model of statutory …

Great Expectations: What Does It Mean To Hold And Make Space For The Arts In Singapore?, Su Fern Hoe

Research Collection School of Social Sciences

The arts and artists need space to thrive. However, as much of the land in Singapore is stateowned, providing space for the arts—literally and figuratively—remains challenging. Today, there is a rich variety of arts infrastructure in Singapore, including performing arts venues, statesubsidised artist studios and co-working spaces for freelancers. However, this stateadministered infrastructure comes with expectations, as these arts spaces have been positioned as expedient policy resources capable of achieving a broad confluence of cultural, urban, economic and social outcomes for Singapore. These “great expectations” on state-initiated arts spaces and the ensuing implications are the foci of this paper. I …

A Systematic Quantitative Review Of Effective Implementation Of Self-Monitoring (1983-2020), Mary Louise Lewis

Theses and Dissertations

A systematic quantitative review was conducted to analyze articles using self-monitoring in the Journal of Organizational Behavior Management (JOBM) from 1983 to present. Specifically, the diversity of characteristics used when implementing a self-monitoring procedure were examined along with the effects produced in order to determine the most effective components of a self-monitoring intervention. Results indicate a combination of other interventions are used substantially more compared to self-monitoring as a sole intervention. Moreover, results from this particular sample of studies demonstrated that a combination of variables led to more consistent effects than when self-monitoring was applied as a sole intervention. However, …

Biracial And Bicultural Identity Formation: Lessons Garnered From Sense Of Belonging And Code-Switching In Fostering Optimal Psychological Wellbeing And Mental Health, Kimberly Foley

Theses and Dissertations

In an era of systemized racial discrimination, the U.S.A. is in search of resolution to ameliorate the chronic racial divide, which has led to the declaration of racism being a public physical and mental health issue. The national epidemic of racism has given way to cultural health disparities for People of Color (POCs) that require our urgent attention as a nation, which are attributed to racial trauma that compromises POCs physical and psychological wellbeing. The belief that the answer to resolve the racial health crisis and racial divide may lie in the achievement of a healthy and developed biracial/bicultural identity. …

1, 2, Or 3 In A Hat? How A Human-Agent Team’S Composition Affects Trust And Cooperation, Dan Manh Nguyen

Theses and Dissertations

Modern advances in technology have enabled a collaborative relationship between man and machine. Many industries have adopted these human-agent teams, yet human perceptions about technology may prevent them from adopting a teammate mentality when interacting with agents. Although many studies have researched the issue, few have studied how the human to agent ratio within a team influences how the person intends to interact with their agent team members. Grounded in the theory of planned behavior (Azjen, 1985), this study elucidates how a team’s composition affects the trust of human team members in human-agent teams and their subsequent intentions to work …