Unemployed and their Caseworkers: Should they be Friends or Foes?

In many countries, caseworkers in a public employment office have the dual roles of counselling and monitoring unemployed persons. These roles often conflict with each other leading to important caseworker heterogeneity: Some consider providing services to their clients and satisfying their demands as their primary task. Others may however pursue their strategies even against the will of the unemployed person. They may assign job assignments and labour market programmes without consent of the unemployed person. Based on a very detailed linked jobseeker-caseworker dataset, we investigate the effects of caseworkers' cooperativeness on the employment probabilities of their clients. Modified statistical matching methods reveal that caseworkers who place less emphasis on a cooperative and harmonic relationship with their clients increase their employment chances in the short and medium term.Public employment services, unemployment, statistical matching methods

Query processing of geometric objects with free form boundarie sin spatial databases

The increasing demand for the use of database systems as an integrating factor in CAD/CAM applications has necessitated the development of database systems with appropriate modelling and retrieval capabilities. One essential problem is the treatment of geometric data which has led to the development of spatial databases. Unfortunately, most proposals only deal with simple geometric objects like multidimensional points and rectangles. On the other hand, there has been a rapid development in the field of representing geometric objects with free form curves or surfaces, initiated by engineering applications such as mechanical engineering, aviation or astronautics. Therefore, we propose a concept for the realization of spatial retrieval operations on geometric objects with free form boundaries, such as B-spline or Bezier curves, which can easily be integrated in a database management system. The key concept is the encapsulation of geometric operations in a so-called query processor. First, this enables the definition of an interface allowing the integration into the data model and the definition of the query language of a database system for complex objects. Second, the approach allows the use of an arbitrary representation of the geometric objects. After a short description of the query processor, we propose some representations for free form objects determined by B-spline or Bezier curves. The goal of efficient query processing in a database environment is achieved using a combination of decomposition techniques and spatial access methods. Finally, we present some experimental results indicating that the performance of decomposition techniques is clearly superior to traditional query processing strategies for geometric objects with free form boundaries

Object-oriented querying of existing relational databases

In this paper, we present algorithms which allow an object-oriented querying of existing relational databases. Our goal is to provide an improved query interface for relational systems with better query facilities than SQL. This seems to be very important since, in real world applications, relational systems are most commonly used and their dominance will remain in the near future. To overcome the drawbacks of relational systems, especially the poor query facilities of SQL, we propose a schema transformation and a query translation algorithm. The schema transformation algorithm uses additional semantic information to enhance the relational schema and transform it into a corresponding object-oriented schema. If the additional semantic information can be deducted from an underlying entity-relationship design schema, the schema transformation may be done fully automatically. To query the created object-oriented schema, we use the Structured Object Query Language (SOQL) which provides declarative query facilities on objects. SOQL queries using the created object-oriented schema are much shorter, easier to write and understand and more intuitive than corresponding S Q L queries leading to an enhanced usability and an improved querying of the database. The query translation algorithm automatically translates SOQL queries into equivalent SQL queries for the original relational schema

An Examination of the Cooperativeness of Games in the Context of Culture

Despite being one of the few human-specific types of play that humans of various ages engage in, games are understudied in cross-cultural research. Games are not distributed randomly across cultures and vary with some socio-ecological aspects of human cultures. Previous observational studies suggest that the cooperativeness and egalitarianism of cultural groups is reflected in the games that are played across cultures, but this has yet to be studied using a breadth of method- ological approaches. In this dissertation, I investigate the relationship the cooperativeness of games may have with the cooperativeness of cultural groups and offer one potential avenue as to how and why games are distributed across cultures. This dissertation consists of two main parts. The first part (chapters 2 - 3) focuses on gathering and analyzing descriptions of historical games and cultural levels of cooperation from ethnolinguistic groups on the Austronesian language phylogeny. The second part (chapters 4 - 6) focuses on gathering games, cultural levels of cooperation, and investigating the relationship between games and cultural levels of cooperation by three modern-day cultural groups. In chapter two, I describe the making of the Austronesian Game Taxonomy, an open-access database of game descriptions as gathered from historical, ethnographic, and other sources. I also describe my goal structure coding scheme and apply it to the 907 games in the Austronesian Game Taxonomy. In chapter three, I test the relationship between the goal structure of games from the Austronesian Game Taxonomy and several proxies for cultural levels of cooperation in 25 ethnolin- guistic groups. I find that the cooperativeness of games is negatively related to cultural levels of intra-group conflict and positively related with inter-cultural conflict. The goal structure of games is not associated with the social structure of cultures, nor reliably correlate with measures of interdependence in subsistence. Chapter four provides a detailed description of the three cultures that are the focus of Part two of this dissertation: Hai||om and Ovambo in Namibia, and Germans in Leipzig, Germany. I use three semi-structured interviews to obtain information about the levels of social stratification, intra-group conflict, and inter-cultural conflict experienced by these three groups. Chapter five documents the games played by Hai||om and Ovambo children and adults during my research visit to Namibia. I describe a handful of games with variety of goal structures. I provide the interview used to gather this information for future cross-cultural game collection. In chapter six, I examine the relationship between the preference for games that are cooperative or competitive, and cultural levels of cooperation in three modern-day cultures. I also interview caretakers on their attitudes toward children’s play and games. I find cross-cultural variation in children’s game preferences, but adult game preferences do not vary across cultures. Game preferences do not systematically vary with predicted cultural levels of cooperation. In the general discussion, I discuss my research findings in terms of the relationship between games and cultural levels of cooperation and suggest further improvements for the field of cross-cultural game research. This dissertation provides some evidence that games relate with types of conflict, but not with levels of social stratification nor interdependence in subsistence

Understanding the Footprint of the RBV in International Business Studies: the Last Twenty Years of Research

International business (IB) research has evolved substantially over the past four decades incorporating new concerns and theoretical contributions. During the past two decades, the Resource-Based View (RBV) has gained the preference of many IB scholars and has gradually become one of the dominant theoretical perspectives for studying IB decisions and operations. The 1991 article “Firm resources and sustained competitive advantage” by Jay Barney is recognized as a fundamental contribution to the Resource-Based View (RBV). In this paper we assess the influence of the RBV, proxied by Jay Barney’s (1991) article, on IB research over the twenty years period, from 1991 to 2010. In this bibliometric study of the articles published in the leading journal for IB research – Journal of International Business Studies (JIBS) – we conduct citation and co-citation analyses, the networks of co-authorship, and delve into the analysis of the key research topics. Beyond understanding the extant research we also contribute to i identifying future research avenues.info:eu-repo/semantics/publishedVersio

Health care information systems management: Structure and infrastructure

The practice of medicine is inextricably entwined with the management of health care information system (HCIS). Major problems with HCIS are that it has not evolved from the needs of end users, and lacks of an organizational base^ to manage the HCIS in the health care environment. The object of this paper is to examine a direction to effectively support and enhance the health care activities through managing HCIS. An integrated focus is provided through a framework for analyzing the structure and infrastructure of HCIS in hospitals

Clinical Correlates of Sports Betting: A Systematic Review

Sports betting is becoming increasingly widespread, and a growing number of individuals, both adolescents and adults, participate in this type of gambling. The main aim of this systematic review was to assess correlates of sports betting (sociodemographic features, gambling-related variables, co-occurring psychopathologies, and personality tendencies) through a systematic review conducted following the PRISMA guidelines. Relevant studies were identified via searches of NCBI/PubMed and APA PsycInfo databases. Individuals from the general population and/or with a clinical diagnosis of gambling disorder (GD) were included, irrespective of gender and age. In addition, the studies needed to have administered at least one clinical interview/psychometric instrument to assess the presence of problematic gambling/GD, contain at least one group of participants with sports betting, and directly analyze the association between sports betting and any of the following features: sociodemographics, gambling-related variables, co-occurring psychopathologies, and/or personality tendencies. Fifty-four articles were included. Multiple sociodemographic variables have been studied in relation to sports betting. In general, males with high impulsivity have greater tendencies for sports betting. The co-occurrence of certain pathologies, especially substance use or other addictive disorders, was also suggested. Most studies were cross-sectional, assessed participants using self-administered instruments, recruited samples using non-probability online panels, included small samples, had unbalanced samples, and included samples from only one country. Impulsive males may be particularly prone to sports gambling and related problems. Future research should examine prevention strategies that may help prevent the development of sport-betting-related GD and other addictive behaviors in vulnerable individuals