Pareto effects in the eCasino: differences across online products and links with self-exclusion

Consumption of many goods adheres to the Pareto rule (or 80:20 law) that the 20% most engaged consumers generate 80% of revenue. Using a dataset from the eCasino section of the provincial online gambling platform in British Columbia, Canada, we recently observed that Pareto values exceeded the conventional 80:20 ratio, with the top 20% generating ~92% of bets and ~90% of revenue (Deng, Lesch & Clark, 2021 Addictive Behaviors 120: 106968). In this presentation, we will examine how these effects vary across different gambling product types within the eCasino: online slot machine games, table games, video poker, and other probability games. As a marker of likely gambling harm, we test rates of enrolment in Voluntary Self-Exclusion (VSE). The dataset comprises 30,920 account holders who placed at least one bet on the platform in 2014-2015, comprising over half a billion individual bets. Across the four product types, Pareto values indicated greatest concentration for video poker (98%) and lowest for slot machines (89%). We also observe higher levels of VSE in the top 20% compared to the remaining 80% (13% vs 7%) with some differences across products. Statement of Importance: As online gambling expands, behavioural tracking offers a promising technique for detecting risk, but limited work has examined behavioural markers across different online gambling products. We examine concentrations of consumption using the Pareto rule across 4 different product types in an online casino, and associations with gambling self-exclusion

The Plethora of Working Self Out: Relationship between Workload and Emotional Exhaustion among High School Teachers in Kiambu County, Kenya

Less emotional exhaustion among teachers is critical in ensuring that teachers perform optimally in their various workloads However few studies have explored how various workloads for teachers can contribute to their emotional exhaustion The current study aimed to examine how various workload categories relate to emotional exhaustion among teachers in public high schools in Kiambu County Kenya The study adopted a descriptive survey design using a random sample of 367 participants drawn from 4447 teachers working in public high schools in Kiambu County at the time The quantitative data were collected using a workload questionnaire for assessing workload and the Maslach Burnout Inventory Scale MBI-S for burnout The qualitative data were collected using a structured interview guide and focus group discussions and descriptive frequency tables and percentages and inferential multinomial logistic regression statistics to analyze the data The study used Job Demand-Resource and Multidimensional theories to explain the relationship Results indicate a relationship between workload and emotional exhaustion among teachers in public high schools Emotional exhaustion can affect teachers physical mental emotional and social wellbeing The research recommends that school counselling departments be made comprehensive enough to accommodate workplace counselling to assist teachers deal with emotional exhaustion and acquiring overall mental health which would enhance their performanc

Imperatives of Corporate Governance On Corporate Citizenship in Nigeria

This paper seeks to examine and interrogate the conceptual ideas and frameworks of corporate governance; its relationship and relevance to corporate citizenship and the elements that describe what is meant by corporate citizenship. Various perspectives of the role which corporate governance plays as a major influence on corporate citizenship and corporate social responsibility were clearly shown. Also shown is the meaning which is ascribed to corporate governance, its core principles, the rhetoric and realities concerning the effect of a corporation’s pursuit of power and profit on corporate citizenship, legal and social responsibilities and the significant paradigm shift. Situating the concept of corporate governance with corporate citizenship shows an interrelationship between the former and the latter. Consequently, this paper revealed that in the long run the market mechanism should be able to provide additional resources to those companies which are best at maximizing and adhering to the principles of corporate governance for the promotion of good corporate citizenship

The Capstone Journey: Exploring Design, Delivery and Evaluation in an Undergraduate Management Discipline Context

The focus of this paper is the development of a capstone management course and the application of educational action research through continual learning. In this article, we use the continual learning frame of plan, do, study, and act to underpin an educational action research design on the development of a capstone management course. As part of an Active Learning Trial, the development of the capstone experience has been captured in the embodiment of that experience. Our aim is to guide other academics in developing their own capstone course, particularly, within management with extension into other disciplines. Through continual improvement, we stress the importance of integrating the primary voice of the students, to emphasize the active learning and to optimize a meaningful experience in connecting theory to practice – the key to the capstone experience. Examples of how to gain feedback and integrate classroom improvements are given. To do this we present two cycles where we applied and practiced continual learning and educational action research to understand and evoke improvements within the course. These changes are evidenced through aggregated student feedback

Characterizations of Super-regularity and its Variants

Convergence of projection-based methods for nonconvex set feasibility problems has been established for sets with ever weaker regularity assumptions. What has not kept pace with these developments is analogous results for convergence of optimization problems with correspondingly weak assumptions on the value functions. Indeed, one of the earliest classes of nonconvex sets for which convergence results were obtainable, the class of so-called super-regular sets introduced by Lewis, Luke and Malick (2009), has no functional counterpart. In this work, we amend this gap in the theory by establishing the equivalence between a property slightly stronger than super-regularity, which we call Clarke super-regularity, and subsmootheness of sets as introduced by Aussel, Daniilidis and Thibault (2004). The bridge to functions shows that approximately convex functions studied by Ngai, Luc and Th\'era (2000) are those which have Clarke super-regular epigraphs. Further classes of regularity of functions based on the corresponding regularity of their epigraph are also discussed.Comment: 15 pages, 2 figure

The relationship between relapse and disability in multiple sclerosis

The relationship between relapse and disability in multiple sclerosis is unclear. Whilst natural history studies have confirmed the disabling effects of insidious disease progression they have suggested that relapse, the clinically defining feature of the majority of cases multiple sclerosis, is largely unrelated to disability. However the major therapeutic strategies currently in use against multiple sclerosis are known only to ameliorate relapses and their ability to prevent long term disability is not presently based on evidence but faith in a long presumed, but unproven relationship between relapse, disease progression and disability.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Visualization and Analysis of Sensory Data

Recently, California has suffered a severe drought, making water a scarce resource to its population. Many viticulturists are based in this area who rely on heavy irrigation to produce a better grape and a better wine. Not just in California, but throughout the nation, irrigation must be applied intelligently for efficient use of water and funding. By taking measurements of physical characteristics of a vineyard over time, one may be able to visualize trends in the data which lend itself to describing preferred growing methods. Wireless sensors can be used to take measurements including moisture, temperature, sunlight, and more. Sensors have been installed at multiple locations about a vineyard. A framework has been put in place to capture, adjust, and calibrate the data as well as store it for future retrieval. The data are visualized over time to see the effects of techniques in the long term. These are helpful for suggesting irrigation strategy that will lead to the best yield. Sensors are cheap and effective, but are prone to malfunction and transmission errors. When these problems occur, the faulty time-series data can be cleaned by correlating with similar time-series data in the same time span. The data system will be a necessity for competitive viticulturists, reducing cost of irrigation and improving quality of wine. In the future, the tool could be applied to other crops. Also, if any new important values must be derived or measured, the system can be extended to include them

It is Time for New Perspectives on How to Fight Bloat in GP

The present and future of evolutionary algorithms depends on the proper use of modern parallel and distributed computing infrastructures. Although still sequential approaches dominate the landscape, available multi-core, many-core and distributed systems will make users and researchers to more frequently deploy parallel version of the algorithms. In such a scenario, new possibilities arise regarding the time saved when parallel evaluation of individuals are performed. And this time saving is particularly relevant in Genetic Programming. This paper studies how evaluation time influences not only time to solution in parallel/distributed systems, but may also affect size evolution of individuals in the population, and eventually will reduce the bloat phenomenon GP features. This paper considers time and space as two sides of a single coin when devising a more natural method for fighting bloat. This new perspective allows us to understand that new methods for bloat control can be derived, and the first of such a method is described and tested. Experimental data confirms the strength of the approach: using computing time as a measure of individuals' complexity allows to control the growth in size of genetic programming individuals