Invisible Colleagues: The Informal Organization of Knowledge Production in Criminology and Criminal Justice

This study seeks to shed light on the informal process of knowledge production in criminology and criminal justice by examining acknowledgements in journal publications. Studying the structure of research collaboration among scholars may enhance our understanding of the discipline’s organization. We test hypotheses derived from prior research by analyzing acknowledgements in 786 articles from five journals in criminology and criminal justice over the last five years. As anticipated by the “invisible college” hypothesis, criminology and criminal justice scholarship contains a small group of individuals who receive a disproportionate share of acknowledgements. Additionally, we find that higher ranked and more productive scholars are awarded more acknowledgements than their lower ranked and less productive counterparts. Integrating acknowledgements as an unofficial assessment tool may improve the collective endeavor of contemporary science in our field. Overall, the influence of the “invisible colleagues,” measured by acknowledgements, demonstrates the value of collaboration in the process of knowledge production.     

Agency and Interactive Data Displays: Internet Graphics as Co-Created Rhetorical Spaces

Much has been written about how to evaluate static graphics from the perspective of clarity, ethics, efficiency, and power relations. However, when considering interactive graphics, agency must enter the conversation. This article develops a typology to understand the balance of agency between the designers and users of interactive graphics. The authors use this typology to interrogate 2 contemporary theories of rhetorical agency advanced by Miller and by Herndl and Licona.     

Dean flow-coupled inertial focusing in curved channels

Passive particle focusing based on inertial microfluidics was recently introduced as a high-throughput alternative to active focusing methods that require an external force field to manipulate particles. In inertial microfluidics, dominant inertial forces cause particles to move across streamlines and occupy equilibrium positions along the faces of walls in flows through straight micro channels. In this study, we systematically analyzed the addition of secondary Dean forces by introducing curvature and show how randomly distributed particles entering a simple u-shaped curved channel are focused to a fixed lateral position exiting the curvature. We found the lateral particle focusing position to be fixed and largely independent of radius of curvature and whether particles entering the curvature are pre-focused (at equilibrium) or randomly distributed. Unlike focusing in straight channels, where focusing typically is limited to channel cross-sections in the range of particle size to create single focusing point, we report here particle focusing in a large cross-section area (channel aspect ratio 1:10). Furthermore, we describe a simple u-shaped curved channel, with single inlet and four outlets, for filtration applications. We demonstrate continuous focusing and filtration of 10 μm particles (with >90% filtration efficiency) from a suspension mixture at throughputs several orders of magnitude higher than flow through straight channels (volume flow rate of 4.25 ml/min). Finally, as an example of high throughput cell processing application, white blood cells were continuously processed with a filtration efficiency of 78% with maintained high viability. We expect the study will aid in the fundamental understanding of flow through curved channels and open the door for the development of a whole set of bio-analytical applications.     

The Impact of NIH Postdoctoral Training Grants on Scientific Productivity

In this paper, we estimate the impact of receiving an NIH postdoctoral training grant on subsequent publications and citations. Our sample consists of all applications for NIH postdoctoral training grants (unsuccessful as well as successful) from 1980 to 2000. Both ordinary least squares and regression discontinuity estimates show that receipt of an NIH postdoctoral fellowship leads to about one additional publication over the next five years, which reflects a 20% increase in research productivity.     

The relationship of pupil control ideology and innovative classroom practices

Pupil control has been described as the major problem facing our schools. Teachers have been described as reluctant to adopt innovative practices in the classroom for fear of being charged as soft on discipline. This paper reports on research designed to test the relationship of biology teachers' pupil control and their classroom practices. A sample of 68 biology teachers was selected by a stratified randomized process for the study. Two groups of teachers were compared on the variables of the Biology Classroom Activity Checklist. Analysis of the results permitted the authors to conclude that those teachers who have a more humanistic pupil control ideology may be preferred to work with the BSCS programs than those teachers who have a more custodial pupil control ideology.