Why do Swedes cooperate with the police? A SEM analysis of Tyler's procedural justice model

The present article examines why Swedes cooperate with the police using the framework of the procedural justice theory. This theory assumes that trust in procedural justice and in the effectiveness of the police are important issues in shaping citizens’ perceptions of police legitimacy. Additionally, perceived legitimacy is necessary for the recognition of police authority. When citizens recognize the right of the police to exercise authority, they are assumed to feel an obligation to obey the police, and ultimately they will have a greater tendency to cooperate with them. Because of the ongoing discussion about the meaning and conceptualization of the concept of ‘legitimacy’, some additional ideas are described and are also taken into account in the model that we tested. We used structural equation modelling (SEM) to do the analysis, which was conducted on data available from the European Social Survey (ESS) Round 5. The results indicate that trust in the procedural justice of the police plays an important role in the explanation of citizens’ willingness to cooperate with the police through perceptions of moral alignment and feelings of obligation to obey the police. However, there is still a high percentage of individual variance in willingness to cooperate with the police that cannot be explained by the model we tested. The implications of the findings are discussed

Optimal Policy Projections

We outline a method to provide advice on optimal monetary policy while taking policymakers’ judgment into account. The method constructs optimal policy projections (OPPs) by extracting the judgment terms that allow a model, such as the Federal Reserve Board staff economic model, FRB/US, to reproduce a forecast, such as the Greenbook forecast. Given an intertemporal loss function that represents monetary policy objectives, OPPs are the projections — of target variables, instruments, and other variables of interest — that minimize that loss function for given judgment terms. The method is illustrated by revisiting the economy of early 1997 as seen in the Greenbook forecasts of February 1997 and November 1999. In both cases, we use the vintage of the FRB/US model that was in place at that time. These two particular forecasts were chosen, in part, because they were at the beginning and the peak, respectively, of the late 1990s boom period. As such, they differ markedly in their implied judgments of the state of the world in 1997 and our OPPs illustrate this difference. For a conventional loss function, our OPPs provide significantly better performance than Taylor-rule simulations.

Optimal Policy Projections

We outline a method to provide advice on optimal monetary policy while taking policymakers' judgment into account. The method constructs Optimal Policy Projections (OPPs) by extracting the judgment terms that allow a model, such as the Federal Reserve Board's FRB/US model, to reproduce a forecast, such as the Greenbook forecast. Given an intertemporal loss function that represents monetary policy objectives, OPPs are the projections - of target variables, instruments, and other variables of interest -that minimize that loss function for given judgment terms. The method is illustrated by revisiting the Greenbook forecasts of February 1997 and November 1999, in each case using the vintage of the FRB/US model that was in place at that time. These two particular forecasts were chosen, in part, because they were at the beginning and the peak, respectively, of the late 1990s boom period. As such, they differ markedly in their implied judgments of the state of the world, and our OPPs illustrate this difference. For a conventional loss function, our OPPs provide significantly better performance than Taylor-rule simulations.

A Conceptual UX-aware Model of Requirements

User eXperience (UX) is becoming increasingly important for success of software products. Yet, many companies still face various challenges in their work with UX. Part of these challenges relate to inadequate knowledge and awareness of UX and that current UX models are commonly not practical nor well integrated into existing Software Engineering (SE) models and concepts. Therefore, we present a conceptual UX-aware model of requirements for software development practitioners. This layered model shows the interrelation between UX and functional and quality requirements. The model is developed based on current models of UX and software quality characteristics. Through the model we highlight the main differences between various requirement types in particular essentially subjective and accidentally subjective quality requirements. We also present the result of an initial validation of the model through interviews with 12 practitioners and researchers. Our results show that the model can raise practitioners' knowledge and awareness of UX in particular in relation to requirement and testing activities. It can also facilitate UX-related communication among stakeholders with different backgrounds.Comment: 6th International Working Conference on Human-Centred Software Engineerin

Adaptive Multicell 3D Beamforming in Multi-Antenna Cellular Networks

We consider a cellular network with multi-antenna base stations (BSs) and single-antenna users, multicell cooperation, imperfect channel state information, and directional antennas each with a vertically adjustable beam. We investigate the impact of the elevation angle of the BS antenna pattern, denoted as tilt, on the performance of the considered network when employing either a conventional single-cell transmission or a fully cooperative multicell transmission. Using the results of this investigation, we propose a novel hybrid multicell cooperation technique in which the intercell interference is controlled via either cooperative beamforming in the horizontal plane or coordinated beamfroming in the vertical plane of the wireless channel, denoted as adaptive multicell 3D beamforming. The main idea is to divide the coverage area into two disjoint vertical regions and adapt the multicell cooperation strategy at the BSs when serving each region. A fair scheduler is used to share the time-slots between the vertical regions. It is shown that the proposed technique can achieve performance comparable to that of a fully cooperative transmission but with a significantly lower complexity and signaling requirements. To make the performance analysis computationally efficient, analytical expressions for the user ergodic rates under different beamforming strategies are also derived.Comment: Accepted for publication in IEEE Transaction on Vehicular Technolog

Vibration response of long cable-stayed timber footbridge – case study

Timber footbridges with a span larger than 30 meters are sensitive to vibrations and dynamic factors must therefore be taken into considerations in the design. A case study of a cable-stayed footbridge, Älvsbacka Bridge, with a free span of 130 meters, is presented. The dynamic design of the bridge is compared, based on the old Swedish code, BRO 2004 and the Eurocode 5. Simplified force models presented in BRO 2004 and the ISO 10137 international standard are compared. Vertical and lateral accelerations are measured on the bridge with accelerometers attached to the bridge deck. According to the simplified force model, the vertical acceleration limit was met for a group of twenty pedestrians, which was regarded as a reasonable design situation. From the measured accelerations, the damping factor was calculated as 1.2% of critical damping, which is twice the value used in design

Schools and child antisocial behavior : in search for mediator effects of school-level disadvantage

Contextual research on delinquency is primarily based on the idea that residential areas provide a major ecological setting that (indirectly) shapes observed differences in delinquency. Just like neighborhoods, schools differ in terms of their level of structural characteristics such as the concentration of immigrant children and children from disrupted families. Such characteristics may also shape delinquency. The present study aims to test the relationship between structural characteristics of schools and child antisocial behavior, using a sample of elementary school children (N = 779, aged 10-12 years in the urban context of Ghent, Belgium). This study found that the concentration of children from disrupted families has an independent effect on child delinquency, independent of social bonds, moral cognitions, and moral emotions. The contextual effect is fully mediated by exposure to peer delinquency

Micro-Place Disorder, Subjective Powerlessness and Violent Youth Group Involvement: Testing an Integrative Control Theory

In this study we test an integrative theory that seeks to explain why youth that live in disordered micro-places have an increase likelihood of becoming involved in a violent youth group. The emerging integrative theory is based on the principle of conceptual end-to-end integration and is the result of an attempt to integrate (1) a contemporary version of subjective powerlessness theory with (2) an integrative control framework of violent youth group involvement. We submit the thesis that the both aforementioned models are highly suitable for conceptual integration as micro-place disorder is a common antecedent. In addition, both models share an intervening mechanism in the observed micro-place disorder- violent youth group involvement relationship: the concept of normlessness. An integrative model allows for the study of multiple pathways through which micro-place disorder and subjective powerlessness affect the likelihood of becoming involved in a violent youth group. Using path analyses for continuous and dichotomous outcomes we test key propositions of our theoretical elaboration. Our research is based on a large sample of youths in early adolescence (N=2,486) in the urban context of Antwerp, the second largest city of Belgium. The results indicate that micro-place disorder increases decreases parental monitoring and increases feelings of subjective powerlessness. Normlessness and low self-control are important mediators in the "causal chain" between micro-place disorder, subjective powerlessness and violent youth group involvement. Low self-control and lifestyle risk further mediate the effects of subjective powerlessness, normlessness and micro-place disorder. The implications of these findings for future studies of violent youth group involvement are discussed

Implementation of fully coupled heat and mass transport model to determine temperature and moisture state at elevated temperatures

The aim of this study is to present precise numerical formulation to determine\ud temperature and moisture state of timber in the situation prior pyrolysis. The strong\ud formulations needed for an accurate description of the physics are presented and discussed as\ud well as their coupling terms. From these the weak formulation is deducted. Based on the weak\ud formulation two case studies are conducted. The results of this case are presented.\u