1,151 research outputs found
Personalized behavioral feedback for online gamblers: a real world empirical study
Responsible gambling tools (e.g., limit-setting tools, pop-up messages, and personalized feedback) have become increasingly popular as a way of facilitating players to gamble in a more responsible manner. However, relatively few studies have evaluated whether such tools actually work. The present study examined whether the use of three types of information (i.e., personalized feedback, normative feedback, and/or a recommendation) could enable players to gamble more responsibly as assessed using three measures of gambling behavior, i.e., theoretical loss (TL), amount of money wagered, and gross gaming revenue (GGR) (i.e., net win/loss). By manipulating the three forms of information, data from six different groups of players were analyzed. The participant sample drawn from the population were those that had played at least one game for money on the Norsk Tipping online platform (Instaspill) during April 2015. A total of 17,452 players were randomly selected from 69,631 players that fulfilled the selection criteria. Of these, 5,528 players participated in the experiment. Gambling activity among the control group (who received no personalized feedback, normative feedback or no recommendation) was also compared with the other five groups that received information of some kind (personalized feedback, normative feedback and/or a recommendation). Compared to the control group, all groups that received some kind of messaging significantly reduced their gambling behavior as assessed by TL, amount of money wagered, and GGR. The results support the hypothesis that personalized behavioral feedback can enable behavioral change in gambling but that normative feedback does not appear change behavior significantly more than personalized feedback
Ein Verbundmodell für Stahlbeton unter Berücksichtigung der Betonschädigung
The reason for this research are the differences of the bond stress-slip relationships between pullout, push-in and tension tie specimen. A general admitted bond stress-slip law is developed which bases upon analytical consideration. The new developed bond stress-slip law considers the three-dimensional stress state of concrete in front of the rib of the reinforcing bar
Ein Verbundmodell für Stahlbeton unter Berücksichtigung der Betonschädigung
Aufgrund der Differenzen in den Verbundspannungs-Relativverschiebungs-Beziehungen von Auszieh-, Ausdrück- und Dehnkörpern wird ein Verbundgesetz auf Basis theoretischer Überlegungen generiert. Das neu entwickelte Verbundgesetz berücksichtigt den dreiaxialen Spannungszustand des Betons vor der Rippe des Bewehrungsstabes. Der Spannungszustand entsteht infolge einer vor der Bewehrungsstabrippe beginnenden Druckstrebe und den daraus resultierenden Kräfteumlenkungen in tangentiale und radiale Richtun
From Monolithic Systems to Microservices: An Assessment Framework
Context. Re-architecting monolithic systems with Microservices-based
architecture is a common trend. Various companies are migrating to
Microservices for different reasons. However, making such an important decision
like re-architecting an entire system must be based on real facts and not only
on gut feelings. Objective. The goal of this work is to propose an
evidence-based decision support framework for companies that need to migrate to
Microservices, based on the analysis of a set of characteristics and metrics
they should collect before re-architecting their monolithic system. Method. We
designed this study with a mixed-methods approach combining a Systematic
Mapping Study with a survey done in the form of interviews with professionals
to derive the assessment framework based on Grounded Theory. Results. We
identified a set consisting of information and metrics that companies can use
to decide whether to migrate to Microservices or not. The proposed assessment
framework, based on the aforementioned metrics, could be useful for companies
if they need to migrate to Microservices and do not want to run the risk of
failing to consider some important information
Resummed effective action in the world-line formalism
Using the world-line method we resum the scalar one-loop effective action.
This is based on an exact expression for the one-loop action obtained for a
background potential and a Taylor expansion of the potential up to quadratic
order in x-space. We thus reproduce results of Masso and Rota very
economically. An alternative resummation scheme is suggested using ``center of
mass'' based loops which is equivalent under the assumption of vanishing third
and higher derivatives in the Taylor expansion but leads to simplified
expressions. In an appendix some general issues concerning the relation between
world-line integrals with fixed end points versus integrals with fixed center
are clarified. We finally note that this method is also very valuable for gauge
field effective actions where it is based on the Euler--Heisenberg type
resummation.Comment: 15 page
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