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This paper aims to provide evidence that theory-based effects of role-identity cultivation stages on self-symbolizing consumption activities do exist.

Specific focus is placed upon differing motives between rookie versus veteran role-identity actors and how these differences lead to symbolic self-completion and self-retention behaviors. Effects of these motives are examined in the context of college student identity transitions.

Evidence is found for a pattern, whereby role-identity rookies with fewer role-identity-related possessions are more likely to self-symbolize the role-identity outwardly than veteran consumers having more role-identity-related resources, such as possessions. Self-retention via possessions is also more evident with rookies making the transition from one role-identity to the next, replacement role-identity. Findings are replicated for both readily available and favorite possessions related to a role-identity.

Future role-identity research in marketing may miss unique and important insights without accounting for role-identity cultivation stage.

Current evidence highlights the importance of identity cultivation stage, symbolic self-completion and self-retention as factors to consider in understanding market segments associated with respective role-identities.

Extant research does not yet account for how consumption activities serving both symbolic and functional purposes support role-identity transitions. This inquiry is directed at contributing to this need.

This paper aims to present a computationally efficient finite element model for the simulation of isothermal immiscible two-phase flow in a rigid porous media with a particular application to CO₂ sequestration in underground formations. Focus is placed on developing a numerical procedure, which is effectively mesh-independent and suitable to problems at regional scales.

The averaging theory is utilized to describe the governing equations of the involved unsaturated multiphase flow. The level-set (LS) method and the extended finite element method (XFEM) are utilized to simulate flow of the CO₂ plume. The LS is employed to trace the plume front. A streamline upwind Petrov-Galerkin method is adopted to stabilize possible occurrence of spurious oscillations due to advection. The XFEM is utilized to model the high gradient in the saturation field front, where the LS function is used for enhancing the weighting and the shape functions.

The capability of the proposed model and its features are evaluated by numerical examples, demonstrating its accuracy, stability and convergence, as well as its advantages over standard and upwind techniques. The study showed that a good combination between a mathematical model and a numerical model enables the simulation of complicated processes occurring in complicated and large geometry using minimal computational efforts.

A new computational model for two-phase flow in porous media is introduced with basic requirements for accuracy, stability, and convergence, which are met using relatively coarse meshes.

We evaluated the best-available evidence for the effects of receiving business-as-usual or naturally delivered special education services in K-12 US schools. Our best-evidence synthesis of 44 empirical studies evaluated which outcome domains and disability types have been investigated and whether findings varied by the rigor of the study design and methods. Regression-based studies comparing students with educational disabilities (SWED) to students without disabilities (SWOD) yielded mostly negative associations of receiving special education with academic achievement, behavior, and long-term or other outcomes. In contrast, regression-based studies that contrasted SWED receiving special education to other SWED not receiving special education produced a pattern of estimates similar to quasi-experimental designs that contrast SWED to SWOD. The most rigorous designs utilized quasi-experimental methods that compared SWED receiving special education services with SWED not receiving special education services, and generally reported more positive than negative evidence of receiving special education services across most outcome domains. Future research that utilizes rigorous quasi-experimental methodology and appropriate comparison groups to investigate the effectiveness of special education is needed, particularly for nonachievement outcome domains.

The purpose of this study is to investigate the relationship between natural gas consumption and economic growth of France.

To analyze the relationship, an extended Cobb–Douglas production function is used. The auto-regressive distributive lag bounds testing approach is applied to test the existence of the long-run relationship between the series. The vector error correction model Granger causality approach is implemented to detect the direction of causal relation between the variables.

The results show that variables are cointegrated for the long-run relationship. They also indicate that natural gas consumption, exports, capital and labor are the contributing factors to economic growth in France. The causality analysis indicates that feedback hypothesis is validated between gas consumption and economic growth. The bidirectional causality is also found between exports and economic growth, gas consumption and exports and capital and gas consumption.

The feedback hypothesis between gas consumption and economic growth implies that adoption of energy conservation policies should be discouraged; rather, gas consumption and economic growth policies should be jointly implemented.

This study is an original work for France and shows the results of the relationship between natural gas consumption and economic growth. In line with the results of this study, new direction for policy makers is opened up to formulate a comprehensive energy policy to sustain long-term economic growth in France.

The proposed method utilizes characteristics to model convection and perturbation technique for diffusion and dispersion. Thus, each physical process is treated by a numerical scheme well suited to it. The theory is treated in three dimensions and applied to a one‐dimensional problem. The objective of the paper is the improvement of numerical techniques used in enhanced oil recovery problems which involve convection‐dominated flows with small diffusion and dispersion.

This case study chapter reviews the evidence related to TransMilenio (TM) and its ability to promote walking among Bogotá’s citizens. A historical perspective of the Bus Rapid Transit system in Latin America and Bogotá is provided as well as some of the social, environmental and cultural implications. Through a literature review, studies that specifically assessed the role of TM in the promotion of walking and active transportation were identified. In addition, experts in the field were contacted to receive additional papers or reports from the grey literature that could have been missed through the peer-reviewed literature search. In December 2000, Bogotá implemented TM. The system has been successful in reducing traffic congestion, environmental pollution and travel times, as well as improving mobility in the city. Although not initially a goal of TM, some evidence suggests that the system has also served to promote walkability in the city. TM users are more likely to meet recommendations for daily moderate-to-vigorous physical activity and for walking for transportation, reaching an average of 22 minutes per day. Despite its many benefits, TM has some shortcomings that need to be recognised and addressed. In 2014, the daily number of TM users (2.2 million) surpassed the number of users of the traditional public transportation system, but there has still been a migration of users to private means of transportation such as motorcycles and automobiles.

The paper investigates the suitability of the Rasch model for establishing data equivalence. The results based on a real data set are contrasted with findings from standard procedures based on CFA methods.

Sinkovics et al.'s data on technophobia was used and re‐evaluated using both classical test theory (CTT) (multiple‐group structural equations modelling) and Rasch measurement theory.

Data equivalence in particular and measurement in general cannot be addressed without reference to theory. While both procedures can be considered best practice approaches within their respective theoretical foundation of measurement, the Rasch model provides some theoretical virtues. Measurement derived from data that fit the Rasch model seems to be approximated by classical procedures reasonably well. However, the reverse is not necessarily true.

The more widespread application of Rasch models would lead to a stronger justification of measurement, in particular, in cross‐cultural studies but also whenever measures of individual respondents are of interest.

Measurement models outside the framework of CTT are still scarce exceptions in marketing research.

Business sustainability urges firms to simultaneously address economic, ecological, and social concerns. It innately combines different potentially competing organizational elements. Therefore, sustainability represents a suitable context for the study and practice of hybridity. Based on an understanding of hybridity as a continuum, in this chapter, the author distinguish between four different forms of hybridity for business sustainability, depending on the degree of integration and autonomy of sustainability initiatives in business organizations. With ceremonial hybridity, businesses only leave the impression to pursue business and sustainability goals but focus their practices on conventional business priorities. Contingent hybridity denotes an approach where ecological and social concerns are only pursued to the extent that they align with business goals. With peripheral hybridity, firms pursue sustainability initiatives in their own right but do not integrate them with core business activities. Full hybridity puts both business as well as sustainability at the core of the organization without emphasizing one over the other. These different forms of hybridity in business sustainability are illustrated with examples from various business organizations. By characterizing different degrees of hybridity in business sustainability, the argument and the examples highlight how organizational hybridity and business sustainability can fruitfully inform one another. The author develop research opportunities for using business sustainability as a context for studying different degrees as well as the dynamics of hybrid organizing and for using different degrees of hybridity for achieving a better understanding of different pathways toward substantive business contributions to sustainable development.