Cracking the Network Code: Four Principles for Grantmakers

As grantmakers and nonprofits are looking for ways to collaborate more effectively, many are experimenting working with and through networks to achieve greater impact. Because networks are by definition loosely controlled and emergent, understanding how to effectively support them feels like a mystery to many grantmakers.GEO's newest publication sets out to crack the code behind the network mystique. In fact, there is a method to working more efficiently and effectively through networks, and a critical first step for grantmakers is adopting a network mindset, which may require dramatic shifts in attitude and behavior for some. "Cracking the Network Code" outlines four principles that comprise the network mindset, illustrates the principles with a range of examples of networks that have achieved real results, and offers practical questions and recommendations to help grantmakers achieve the benefits and avoid common pitfalls of working through networks

Inverse regression for longitudinal data

Sliced inverse regression (Duan and Li [Ann. Statist. 19 (1991) 505-530], Li [J. Amer. Statist. Assoc. 86 (1991) 316-342]) is an appealing dimension reduction method for regression models with multivariate covariates. It has been extended by Ferr\'{e} and Yao [Statistics 37 (2003) 475-488, Statist. Sinica 15 (2005) 665-683] and Hsing and Ren [Ann. Statist. 37 (2009) 726-755] to functional covariates where the whole trajectories of random functional covariates are completely observed. The focus of this paper is to develop sliced inverse regression for intermittently and sparsely measured longitudinal covariates. We develop asymptotic theory for the new procedure and show, under some regularity conditions, that the estimated directions attain the optimal rate of convergence. Simulation studies and data analysis are also provided to demonstrate the performance of our method.Comment: Published in at http://dx.doi.org/10.1214/13-AOS1193 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org). With Correction

Fast quantum logic gates with trapped ions interacting with external laser and quantized cavity field beyond the Lamb-Dicke regime

A scheme to implement quantum logic gates by manipulating trapped ions through interaction with monochromatic external laser field and quantized cavity field, beyond the Lamb-Dicke regime, is presented. Characteristic times, for implementing ionic state transitions using non-resont laser pulse or quantized cavity field, shows a sharp decline for large Lamb-Dicke parameter value of $\eta_{L}=\eta_{c}=0.2$, and is seen to decrease further with increase in number of initial state vibrational quanta $m$.Comment: Revised version, One major correction, 6 pages, Two table

Minority Private Equity: A Market in Transition

This paper examines the current changes in the minority segment of the private equity market. It argues that there is a confluence of three major changes: the demographic changes in the US population, the changes in the amount of funding available for private equity and the elimination of the SSBIC program. Together, these changes imply a profound rethinking of the investment concepts in the minority market

Empreendedorismo social e comercial: iguais, diferentes ou ambos?

O empreendedorismo tem sido o motor que vem impelindo uma boa parcela do crescimento do setor dos negócios, além de ser a força motriz responsável pela rápida expansão desse setor. Neste artigo, oferece-se uma análise comparativa do empreendedorismo comercial e do social, valendo-se de um modelo analítico pre-valecente, proveniente da área de empreendedorismo comercial. Na análise, destacam-se as principais similaridades e diferenças entre essas duas formas de empreendedorismo e apresenta-se um arcabouço para uma abordagem mais sistemática e eficaz do processo empreendedor. Exploram-se as implicações dessa análise de empreendedorismo social tanto para seus praticantes como para seus pesquisadores.O emprendedurismo ha sido el motor que viene impeliendo una buena cuota del crecimiento del sector de negocios, además de ser la fuerza motriz responsable por la rápida expansión de este sector. Este artículo ofrece un análisis comparativo del emprendedurismo comercial y del social, valiéndose de un modelo analítico prevaleciente, proveniente del área del emprendedurismo comercial. El análisis destaca las principales semajanzas y diferencias entre esas dos formas de emprendedurismo y presenta un marco para un abordaje más sistemático y eficaz del proceso emprendedor. Exploramos las implicaciones de este análisis de emprendedurismo social tanto para sus practicantes como para sus investigadores.Entrepreneurship has been the engine propelling much of the growth of the business sector as well as a driving force behind the rapid expansion of the social sector. This article offers a comparative analysis of commercial and social entrepreneurship using a prevailing analytical model from commercial entrepreneurship. The analysis highlights key similarities and differences between these two forms of entrepreneurship and presents a framework on how to approach the social entrepreneurial process more systematically and effectively. We explore the implications of this analysis of social entrepreneurship for both practitioners and researchers

Implementing Service-learning to the Information Systems and Technology Management Program: A study of an Undergraduate Capstone Course

Service-learning has been identified as an extremely valuable educational tool and applied to different disciplines and areas, but literature review on service learning has indicated that service-learning is little used in Information Systems education. This paper presents our design and development of a service-learning capstone course for graduating college seniors enrolled in an Information Systems and Technology Management program. A conceptual model is proposed to guide the implementation of service-learning into such a course. Following this model, we discuss our experiences and reflections on designing the course and particularly, how to assess students\u27 performance

Mathematic Achievement of Canadian Private School Students

Very little Canadian research has examined the academic achievement of private school students. Data from The Programme for International Student Assessment (PISA) 2003 were used to examine the achievement of private school students. The study found that private school students outperformed their public school peers. In addition, the students’ morale, motivation, interest in mathematics, expected education, effort invested in the PISA test, and socioeconomic status were significantly and positively related to their academic performance. Surprisingly, the cost of their tuition fees, reported hours spent on math homework, sense of belonging, and higher ratio of instructional time on mathematics were significantly, but negatively, related to the students’ math performance.Au Canada, le rendement académique d’élèves dans les écoles privées a très peu fait l’objet de recherche. Nous avons étudié les données du Programme international pour le suivi des acquis des élèves (PISA) de 2003 pour évaluer le rendement des élèves dans les écoles privées; notre étude est similaire à une étude récente portant sur le rendement académique d’élèves dans les écoles publiques au Canada (Wei, Clifton, & Roberts, 2011). Nos résultats indiquent que le rendement des élèves dans les écoles privées est supérieur à celui des élèves dans les écoles publiques. De plus, nous avons trouvé plusieurs facteurs ayant un effet significatif et positif sur le rendement académique :  le moral, la motivation, l’intérêt pour les mathématiques, les attentes quant à leur scolarisation, les efforts consentis pour bien réussir au PISA et le statut socioéconomique. Étonnamment, les facteurs suivants exerçaient un effet significatif, mais négatif, sur la performance des élèves en mathématiques : le cout des frais de scolarité, les heures qu’ils disaient passer à faire des devoirs en mathématiques, le sentiment d’appartenance et un rapport plus élevé d’heures d’enseignement des mathématiques