Charter School Replication: Growing a Quality Charter School Sector

NACSA's Policy Guide series is intended to support state legislatures and charter school advocates in creating policy environments that result in high quality authorizing and high quality schools. This guide outlines key considerations for policymakers committed to supporting the replication of existing successful charter school models

Lessons From a Health Information Technology Demonstration in New York Nursing Homes

Outlines the New York State Nursing Home Health Information Technology Demonstration Project; variations in organizational aims in adopting HIT, perceived or real effects, and resulting quality improvement efforts; and considerations for replication

Multimode PDMS waveguides fabricated using a hot-embossing technique

A novel method for fabricating multimode PDMS waveguides is presented. This process is based on a hot-embossing technique and generates high quality optical waveguides without a substantial residual layer after embossing. Furthermore, the process allows for low-cost fabrication since it relies on a replication technique and additionally only commercially available materials are used. The measured propagation loss is smaller than 0.24dB/cm and can be further reduced by improving the master mould quality

Does “Evaluating Journal Quality and the Association for Information Systems Senior Scholars Journal Basket…” Support the Basket with Bibliometric Measures?

We re-examine “Evaluating Journal Quality and the Association for Information Systems Senior Scholars Journal Basket…” by Lowry et al. (2013). They sought to use bibliometric methods to validate the Basket as the eight top quality journals that are “strictly speaking, IS journals” (Lowry et al., 2013, pp. 995, 997). They examined 21 journals out of 140 journals considered as possible IS journals. We also expand the sample to 73 of the 140 journals. Our sample includes a wider range of approaches to IS, although all were suggested by IS scholars in a survey by Lowry and colleagues. We also use the same sample of 21 journals in Lowry et al. with the same methods of analysis so far as possible. With the narrow sample, we replicate Lowry et al. as closely as we can, whereas with the broader sample we employ a conceptual replication. This latter replication also employs alternative methods. For example, we consider citations (a quality measure) and centrality (a relevance measure in this context) as distinct, rather than merging them as in Lowry et al. High centrality scores from the sample of 73 journals do not necessarily indicate close connections with IS. Therefore, we determine which journals are of high quality and closely connected with the Basket and with their sample. These results support the broad purpose of Lowry et al., finding a wider set of high quality and relevant journals than just MISQ and ISR, and find a wider set of relevant, top quality journals

On the Mechanics of Firm Growth

When the rate at which any given blueprint can be replicated is subject to decreasing returns, it is optimal to replicate high-quality blueprints more quickly than low-quality blueprints. The cost of introducing high-quality “start-up” blueprints will also rise with the rate at which they are introduced, and so low-quality blueprints will continue to enter the population. This naturally leads to persistent heterogeneity in blueprint quality. If quality begets quality and firms are identified with collections of blueprints derived from the same initial blueprint, then firms grow at a constant mean rate along the balanced growth path. A firm size distribution with the thick right tail observed in the data can then arise only when the number of blueprints in the economy grows over time. When calibrated to match the firm entry rate and the right tail of the size distribution, a homogeneous quality version of this model implies that the median age among firms with more than 10,000 employees is about 750 years. If the relative quality of a firm’s blueprints depreciates over time, then firm growth rates are not constant but slow down with age. If the successful replication of new blueprints is rapid but noisy, and high relative quality is sufficiently persistent, this version of the model can explain high observed entry rates, the thick-tailed size distribution, and the relatively young age of large U.S. corporations.firm size, productivity, replication

Co-evolution of RDF Datasets

Linking Data initiatives have fostered the publication of large number of RDF datasets in the Linked Open Data (LOD) cloud, as well as the development of query processing infrastructures to access these data in a federated fashion. However, different experimental studies have shown that availability of LOD datasets cannot be always ensured, being RDF data replication required for envisioning reliable federated query frameworks. Albeit enhancing data availability, RDF data replication requires synchronization and conflict resolution when replicas and source datasets are allowed to change data over time, i.e., co-evolution management needs to be provided to ensure consistency. In this paper, we tackle the problem of RDF data co-evolution and devise an approach for conflict resolution during co-evolution of RDF datasets. Our proposed approach is property-oriented and allows for exploiting semantics about RDF properties during co-evolution management. The quality of our approach is empirically evaluated in different scenarios on the DBpedia-live dataset. Experimental results suggest that proposed proposed techniques have a positive impact on the quality of data in source datasets and replicas.Comment: 18 pages, 4 figures, Accepted in ICWE, 201

Enhancing research quality and reporting: why the Journal of Comorbidity is now publishing study protocols

The Journal of Comorbidity was launched in 2011 and has since become established as a high-quality journal that publishes open-access, peer-reviewed articles, with a focus on advancing the clinical management of patients with comorbidity/multimorbidity. To further enhance research quality and reporting of studies in this field, the journal is now offering authors the opportunity to publish a summary of their study protocols – a move designed to generate interest and raise awareness in ongoing clinical research and to enable researchers to detail their methodologies in order that replication by scientific peers is possible

Capturing the Essential Elements

When a program with demonstrated effectiveness is expanded, knowing how it works and why it works the way it does is an indispensable first step in preserving its quality. This report draws on P/PV's experience with different programs to show how to define a model's essential elements to increase the chances of successful replication. It contains lessons for program developers, funders and practitioners interested in adopting model programs