The Development of Sectoral Worker Center Networks

In this article, we argue that understanding the impact of economic structures on low-wage workers requires the study of emerging worker centers and networks and that individual labor market outcomes and experiences are mediated and impacted by the work of these institutions. We focus on the formation of sectoral worker center networks and address three key issues: (1) What are some of the reasons why worker centers and worker center networks have developed? (2) How do these organizations manage their roles as labor market institutions and social movement organizations? and (3) Why did worker center networks focus on employment and in particular sectors of the low-wage labor market? We find that sector-based organizing (1) facilitates the development of worker- and sector-targeted service strategies, thereby enabling low-wage worker groups and organizations to better achieve their service and policy goals; (2) maximizes opportunities for the organizations to obtain national resources; and (3) expands the reach of organizational networks by bringing organizations together to share resources and best practices. By providing a range of worker-, employment-, and labor market–centered services in specific labor market sectors, worker centers and their networks solidify their role as labor market institutions and become more effective advocacy and social movement organizations

The Development of Sectoral Worker Center Networks

In this article, we argue that understanding the impact of economic structures on low-wage workers requires the study of emerging worker centers and networks and that individual labor market outcomes and experiences are mediated and impacted by the work of these institutions. We focus on the formation of sectoral worker center networks and address three key issues: (1) What are some of the reasons why worker centers and worker center networks have developed? (2) How do these organizations manage their roles as labor market institutions and social movement organizations? and (3) Why did worker center networks focus on employment and in particular sectors of the low-wage labor market? We find that sector-based organizing (1) facilitates the development of worker- and sector-targeted service strategies, thereby enabling low-wage worker groups and organizations to better achieve their service and policy goals; (2) maximizes opportunities for the organizations to obtain national resources; and (3) expands the reach of organizational networks by bringing organizations together to share resources and best practices. By providing a range of worker-, employment-, and labor market–centered services in specific labor market sectors, worker centers and their networks solidify their role as labor market institutions and become more effective advocacy and social movement organizations

Local actors in global politics

Globalization and the new information and communication technologies(ICTs) have enabled a variety of local political actors to enter inter-national arenas once exclusive to national states. Multiple types of claim-making and oppositional politics articulate these developments. Going global has been partly facilitated and conditioned by the infrastructure of the global economy, even as the latter is often the object of those oppositional politics. Further, and in my analysis, very importantly, the possibility of global imag-inaries has enabled even those who are geographically immobile to become part of global politics. NGOs and indigenous peoples, immigrants and refugees who become subjects of adjudication in human rights decisions, human rights and environmental activists, and many others are increasingly becoming actors in global politics. That is to say, non-state actors can enter and gain visibility in inter-national fora or global politics as individuals and as collectivities, emerging from the invisibility of aggregate membership in a nation-state exclusively represented by the sovereign. One way of interpreting this is in terms of a

Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo

International audienceIntermediate-mass black holes (IMBHs) span the approximate mass range 100−105 M⊙, between black holes (BHs) that formed by stellar collapse and the supermassive BHs at the centers of galaxies. Mergers of IMBH binaries are the most energetic gravitational-wave sources accessible by the terrestrial detector network. Searches of the first two observing runs of Advanced LIGO and Advanced Virgo did not yield any significant IMBH binary signals. In the third observing run (O3), the increased network sensitivity enabled the detection of GW190521, a signal consistent with a binary merger of mass ∼150 M⊙ providing direct evidence of IMBH formation. Here, we report on a dedicated search of O3 data for further IMBH binary mergers, combining both modeled (matched filter) and model-independent search methods. We find some marginal candidates, but none are sufficiently significant to indicate detection of further IMBH mergers. We quantify the sensitivity of the individual search methods and of the combined search using a suite of IMBH binary signals obtained via numerical relativity, including the effects of spins misaligned with the binary orbital axis, and present the resulting upper limits on astrophysical merger rates. Our most stringent limit is for equal mass and aligned spin BH binary of total mass 200 M⊙ and effective aligned spin 0.8 at 0.056 Gpc−3 yr−1 (90% confidence), a factor of 3.5 more constraining than previous LIGO-Virgo limits. We also update the estimated rate of mergers similar to GW190521 to 0.08 Gpc−3 yr−1.Key words: gravitational waves / stars: black holes / black hole physicsCorresponding author: W. Del Pozzo, e-mail: [email protected]† Deceased, August 2020