Infant screen exposure links to toddlers' inhibition,but not other EF constructs: A propensity score study

Technology is pervasive in homes of families with young children, despite evidence for negative associations between infant exposure to screen‐based media and cognitive development that has led the American Academy of Pediatrics (AAP) to discourage parents from exposing children under the age of 18 months to any kind of screen time (AAP, 2016). Here, we apply a propensity score matching approach to estimate relations between electronic screen‐based media use in infancy and executive function in early toddlerhood. In an international sample of 416 firstborn infants, parental report of regular exposure to screen‐based media at 4 months predicted poorer performance on a test of inhibition at 14 months, but was unrelated to either cognitive flexibility or working memory at 14 months. Results of this study are therefore consistent with the view that early exposure to screen‐based media adversely affects the development of executive function.     

Service diversification and growth of professional service firms

This study investigates the impact of service diversification on the rate and mode of firm growth in professional service firms (PSFs). Drawing on the extant PSF literature, we identify differing views regarding the growth impact of service diversification. Specifically, some scholars suggest that the external client benefits associated with service diversification should allow PSFs to expand revenues at a rapid pace and pursue less merger and acquisition activity, whereas others imply that increased diversification can cause internal challenges with respect to learning costs, coordination and innovation that can limit the rate of revenue growth and encourage more mergers and acquisitions. We test these competing views using longitudinal data on 137 accounting firms and cross-sectional data on 125 law firms and find that service diversification is negatively associated with the rate of firm revenue growth and positively associated with the use of mergers and acquisitions.     

Monstrosities and moral publics

Interdisciplinary scholarship on neoliberal urban governmentality has been attentive to the knowledges and techniques of government currently emerging at the interface of local state politics and invested claims of voluntary private actors such as corporate partners and philanthropic agencies. This article draws attention to the workings of the aesthetic as an epistemological grounding for the rationalization of urban rule. Specifically, I explore a Toronto, Canada-based philanthropic agency’s reliance on a mise-en-scene of urban terror to animate its own self-validated knowledges about targeted inner-suburban subjects and spaces. In their circulation and demand for public address, the agency’s graphic public service announcements, launched in 2007, herald what I argue is a moralized set of knowledges about municipal renewal that has its own normative orientations grounded in a neoliberal political rationality, and tangentially, in racialized security imperatives. I detail various dimensions of the social life of a video associated with this public service campaign targeting ‘youth at risk’, considering the ethical, political and economic valences it was expected to convey; its semiotic exchange with other images and representations of disenfranchised spaces, subjects and communities; and the publics it attempted to interpellate. Importantly, given the agency’s current standing as a prominent player in Canadian urban policy arenas, I pay analytical attention to the visual campaign as a site for the production of knowledges about proper urban citizenship and social governance, and as such, a strategic-orienting device for urban policy interventions and directives.     

A Fair Globalization: Creating Opportunities for All∗

Much has been written recently about the supposed decline in the sovereign power of nation-states due to global economic processes and the emergence of supranational governing institutions like the World Trade Organization, the World Bank, NAFTA, the EU, etc. This has posed what some consider a problem for still largely nation-state-centric social theory in terms of making sense of what appears to be a major transformation in global governance patterns and institutions. This article argues that the apparent transformation in global governance is less historically revolutionary than evolutionary with the key being a shift in power relations among capitalist class factions at all levels of governance. Toward substantiating this claim, the article focuses on what some argue to be the (re)-emerging global political-economic significance of subnational city-regions as a result of the apparent geographic rescaling of global governance downward from dominant inter-nation-state relations. Of importance is that this apparent (re)emergence of sovereign actors at the subnational city-region scale is largely the result of this contemporary new regionalist discourse essentially rendering itself a reality. It is therefore a highly contested, and contestable, phenomenon, even in the overwhelmingly neoliberal context of the United States.

Recientemente se ha escrito mucho sobre la supuesta decadencia en el poder soberano de los estados-naciones, debido a los procesos económicos globales y el surgimiento de instituciones de gobierno supranacionales como la Organización Mundial del Comercio, el Banco Mundial, el Tratado de Libre Comercio de América del Norte, (NAFTA, por su sigla en inglés), la Unión Europea, etc. Esto ha planteado lo que algunos consideran un problema para una teoría social todavía en gran parte estado-nación-céntrica en términos de tener sentido lo que parece ser una transformación mayor en las tendencias de gobierno e instituciones globales. Este artículo sostiene que la transformación aparente en la gobernanza global es menos revolucionaria históricamente que evolutiva, siendo la clave un cambio en el poder de las relaciones entre las fracciones de la clase capitalista y todos los niveles de gobierno. Para corroborar este argumento, el artículo se enfoca en lo que algunos sostienen que es el (re)surgimiento del significado económico-político global de las regiones-ciudades subnacionales, como resultado de un aparente redimensionamiento geográfico de gobierno global descendiente de las relaciones inter-naciones-estado dominantes. Es de importancia que el (re)surgimiento de los actores soberanos en la escala de región –ciudad subnacional, se debe mayormente a este planteamiento regionalista nuevo contemporáneo, básicamente presentándose a sí mismo como una realidad. Es por eso un fenómeno altamente controvertido y discutible, incluso en el contexto abrumadoramente neoliberal de los Estados Unidos.

由于全球经济进程以及诸如世界贸易组织、世界银行、北美自贸区和欧盟等超国家治理机构的兴起而导致人们认为民族国家的主权权力受到削弱，近来已广为述及。这对在很大程度上仍以民族国家为中心的社会理论提出了一个亟需考虑的问题，如何理解全球治理模式和制度中的重大变迁。本文认为，全球治理中的显著变化与其说是历史革命性的，不如说是渐进性的，关键是各治理层次上资本家阶级各派系的权力关系的变化。为了证明这一主张，本文聚焦于一些人士所认为的（重新）兴起的次国家城市-地区的全球政治经济意义， 认为它是支配性的民族国家间关系下降为明显的全球治理地理再调整的结果。重要的是，在次国家城市-地区层次上主权行为体的明显（重新）兴起，很大程度上是当代新地区主义话语实际上使自身成为现实的结果。因此它是一个高度争论的和可争论的现象，即使是在美国压倒性的新自由主义语境下。

???? ?? ??? WTO, ????, NAFTA, EU ?? ?? ??? ??? ???? ????? ??? ???? ?? ?? ?? ?? ??? ?????. ??? ??? ????? ??? ? ?????? ??? ???? ??? ???? ???? ?? ?? ??? ????? ??? ??? ??? ?? ?????. ? ??? ?? ???? ???? ??? ?? ??? ?? ???? ??? ???? ???????? ????? ??? ????? ??? ???? ??? ?? ????. ? ??? ????? ???? ??? ????? ??? ????? ?? ??? ??? ?? ? ??-??? ??? ??-??? ???? ???? ?? ??? ???. ??? ?? ?? ? ??-?? ???? ??? ?? ????? ??? ????? ? ??? ??? ???? ?? ??? ???? ??? ???? ???. ???? ??? ??? ?? ????? ??????? ?? ???? ??? ???? ????.     

Reliability models for categorical data

As assumed hypothetical consensus category corresponding to a case being classified provides a basis for assessment of reliability of judges. Equivalent judges are characterised by the joint probability distribution of the judge assignment and the consensus category. Estimates of the conditional probabilities of judge assignment given consensus category and of consensus category given judge assignments are indices of reliability. All parameters can be estimated if data include classifications of a number of cases by 3 or more judges. Restrictive assumptions are imposed to obtain models for data from classifications by two judges. Maximum likelihood estimation is discussed and illustrated by example for the 3 or more judges case.