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This paper aims to investigate the applicability of 3D-printed molds to be used as a substitute for photolithography in the formation of polymer-based stamps. It proposes leveraging 3D printing as a rapid prototyping tool to be applied to microfluidic fabrication.

Different designs are created using computer-aided design (CAD) software and printed via Makerbot 3D printer. The molds serve as negative reliefs for a PDMS stamp. The stamp is used to apply paraffin wax to chromatography paper, creating hydrophobic barriers and hydrophilic channels. The minimum functional channel widths and barrier widths are determined for the method.

The method is demonstrated to be effective for bypassing the more cost-prohibitive photolithography approach for rapid paper microdevice fabrication. This approach produces functional channels that can be used for on-chip analytical assays. The minimum functional barrier widths and minimum functional channel widths are in good agreement with other published methods for paper-based microchannel fabrication.

The approach cannot generate the high-resolution structures possible with photolithography. Therefore, if higher resolutions are needed for a particular application, this approach is not the best.

The simplicity of the approach introduces an affordable method to create disposable devices that can be used at the point of testing.

The paper satisfies a need for inexpensive, rapid prototyping of paper-based devices. The method is simple and can be used as a tool for introducing labs to microfluidics research.

Amid widespread social and cultural shifts and advocacy toward lesbian, gay, bisexual, and transgender (LGBT) rights remain a hidden population of homeless adolescents who are cast out from families and communities because of their sexual and gender orientation. The result is an over-representation of LGBT adolescents among the homeless in the United States. The purpose of this paper is to provide a review of literature and research which explores the status and needs of LGBT homeless adolescents in the United States.

To understand the experiences of LGBT adolescents leading up to and during homelessness, I provide a thematic and critical review of four decades of research to connect our understanding of the LGBT homeless experience with institutional and collective efforts that work to promote their well-being.

Bringing together this body of literature, I explore four interrelated questions. First, has the rate of homelessness increased for LGBT adolescents in recent decades? Second, what is the experience of LGBT adolescents who become homeless? Third, what role does advocacy and support play in ameliorating the difficulties these young people face? Finally, what role can future research and policy play in shaping the well-being of LGBT adolescents who become homeless?

Understanding the experience of homeless LGBT adolescents and the collective advocacy efforts designed to promote their well-being offers insight into the intersection of symbolic, inter-personal, and institutional forces which shape their trajectories.

The purpose of this paper is to propose a framework to distinguish between various types of antecedents and consequences of impulse buying. The authors tested it using a meta-analytical approach.

The authors examined 12 databases and analyzed 178 relationships in 100 articles. For the quantitative data analysis, the authors used the coefficient of correlation r as a metric to measure the effect size of the studied scope variables.

The findings of this meta-analysis demonstrated significant relation of antecedents and consequences of the impulse buying behavior, such as consumer impulsiveness (r = 0.464), materialistic consumption (r = 0.344), purchase pleasure (r = 0.270), hedonic value (r = 0.311), income (r = 0.703), gender (r = 0.150), age (r = −0.062), store atmosphere (r = 0.166), decision-making (r = 0.703) and positive emotions (r = 0.323).

This meta-analysis reviewed relationships found worldwide in the literature, expanding and improving the current knowledge. The meta-analysis identified ways that research on impulse buying is lacking and presented suggestions for the elaboration of new studies to allow future researchers to better define their agendas.

This meta-analysis brings important questions, such as impulse buying behavior is associated not only with consumer impulsiveness but also with materialistic consumption.

This research tested the impact of the antecedents and consequences of impulse buying and presented important results through this meta-analytical review. This meta-analysis contributes to the marketing literature, with a set of empirical generalizations, including relationship coefficients and calculated fail-safe numbers.

This chapter explores that landscape between the imagination and practice of ethnographic research as well as a concomitant transition in a sociologist's felt identity. Specifically, it describes the larger effect of building a persona for fieldwork on the self of the ethnographer. The work begins with an examination of the motives behind a proposed study of a deviant counterculture and the efforts that went into crafting a presentation of self appropriate for the milieu. It offers a detailed analysis of the social foundations of the outlaw motorcycle culture and a phase model of their socialization process.

Explores the relationships between statistical process control (SPC) and forecasting procedures. While both procedures are often applied and used in different contexts, a careful analysis shows that they go through the same stages that culminate in process or forecast monitoring. This apparent similarity of SPC and forecasting enables a general framework to be established for model‐based SPC. Discusses some forecasting procedures applicable to SPC and underlines the importance of SPC concepts in forecasting.

Companies are nowadays called to manage increasingly larger and more complex quantities of data. Making good predictions and estimating a possible risky situation in advance is therefore more important than ever. The statistical tools are a key element to support quality management and production process analyses, allowing managers to anticipate, in various ways, the situations that will arise. After a general introduction to statistics, this chapter discusses the main statistical techniques used to describe, visualize, and analyze data, with particular attention to the methods that allow to verify the quality and consistency of the conclusions (i.e., confidence intervals and hypothesis verification). Finally, some advanced and widespread quality management statistical tools are presented: quality control charts, historical series, and stochastic control.

Pew and Mavor (1998) called for an integrative representation of human behavior for use in models of individual combatants and organizations. Models with integrated representation of behavior have only been achieved at rudimentary levels according to those performing the studies (e.g. Pew & Mavor, 1998; Tulving, 2002) and those building the models (e.g. Warwick et al., 2002). This chapter will address aspects of cognitive performance that are important to incorporate into models of combat based on acceptance of theory, strength of empirical data, or for other reasons such as to bridge gaps where incomplete knowledge exists about cognitive behavior and performance. As a starting point, this chapter will assess which of Pew and Mavor’s recommendations are still appropriate as determined by a review of selected literature on cognition and its representation. We will also provide some review and extensions of key literature on cognition and modeling and suggest a way ahead to close the remaining gaps. Different aspects of cognition are described with recent findings, and most are followed by an example of how they have been represented in computer models or a discussion of challenges to their representation in modeling.