Unions and the City: Negotiating Urban Change

[Excerpt] Labor unions remain the largest membership-based organizations in major North American cities, even after years of decline. Labor continues to play a vital role in mobilizing urban residents, shaping urban conflict, and crafting the policies and regulations that are transforming our urban spaces. As unions become more involved in the daily life of the city, they find themselves confronting the familiar dilemma of how to fold union priorities into broader campaigns that address nonunion workers and the lives of union members beyond the workplace. If we are right to believe that the future of the labor movement is an urban one, union activists and staffers, urban policymakers, elected officials, and members of the public alike will require a fuller understanding of what impels unions to become involved in urban policy issues, what dilemmas structure the choices unions make, and what impact unions have on the lives of urban residents, beyond their members.Unions and the City serves as a road map toward both a stronger labor movement and a socially just urbanism. The book presents the findings of a collaborative project in which a team of labor researchers and labor geographers based in New York City and Toronto investigated how and why labor unions were becoming more involved in urban regulation and urban planning. The contributors assess the effectiveness of this involvement in terms of labor goals―such as protecting employment levels, retaining bargaining relationships with employers, and organizing new workforces―as well as broader social consequences of union strategies, such as expanding access to public services, improving employment equity, and making neighborhoods more affordable. Focusing on four key economic sectors (film, hospitality, green energy, and child care), this book reveals that unions can exert a surprising level of influence in various aspects of urban policymaking and that they can have a significant impact on how cities are changing and on the experiences of urban residents

Groups of type FPFP via graphical small cancellation

We construct an uncountable family of groups of type $FP$. In contrast to every previous construction of non-finitely presented groups of type $FP$ we do not use Morse theory on cubical complexes; instead we use Gromov's graphical small cancellation theory.Comment: 3 figures. Second version: two paragraphs added emphasizing the difference between our construction and Morse theoretic one

Developing Typologies of City-Regional Growth

The economic performance of city-regions is closely linked to the performance of the national economy. However, the performance of the national economy can also depend on the performance of one or more major city-regions, that act as growth poles. Because of their sectoral structure and other characteristics, some cities are better equipped to become growth poles than others. This paper studies 46 major city-regions across Europe. The sectoral structure and changes in the sectoral structure of city-regions are studied using data from CE’s European Regional Database, itself based on Eurostat’s Regio database. The data analysis attempts to explain city-region performance by drawing parallels between sectoral structure and economic performance. The data analysis is supplemented by local anecdotal evidence provided by CE’s annual European reporting system ‘European Regional Prospects’, for example the historical importance of river and seafront activities. The paper goes on to discuss the extent to which the sectoral structure of cities can explain why some city-regions grow faster than others. The data analysis will be used to group cities in ‘hard’ typologies according to sectoral specialisation. These sectoral typologies are then compared with typologies according to the local, ‘softer’, evidence provided by CE’s regional consultants. This evidence will also be used to draw out the more subtle influences on city-region growth and these will be used to group cities in ‘soft’ typologies.

Markerless Motion Capture in the Crowd

This work uses crowdsourcing to obtain motion capture data from video recordings. The data is obtained by information workers who click repeatedly to indicate body configurations in the frames of a video, resulting in a model of 2D structure over time. We discuss techniques to optimize the tracking task and strategies for maximizing accuracy and efficiency. We show visualizations of a variety of motions captured with our pipeline then apply reconstruction techniques to derive 3D structure.Comment: Presented at Collective Intelligence conference, 2012 (arXiv:1204.2991

Offshore Turbine Arrays: Numerical Modeling and Experimental Validation

The interaction between wind turbines in a large wind farm needs to be better understood to reduce array losses and improve energy production. A numerical test bed for an array of offshore wind turbines was developed in the open-source computational fluid dynamics (CFD) framework OpenFOAM. It provides a computational tool which can be used in combination with physical model turbine array studies in the Flow Physics Facility (FPF) at UNH as well as other test facilities. Turbines were modeled as actuator disks with turbulence sources to reduce computational cost. Both k-ϵ and k-ω SST turbulence models were utilized to capture the flow in the near-wall, wake, and free stream regions. Experimental studies were performed in the FPF to validate the numerical results and to provide realistic initial and boundary conditions, for example turbulent boundary layer inlet velocity profiles. Mesh refinement and boundary condition studies were performed. Numerical simulations were executed on a custom-built server, designed to be the head node of a future CFD cluster. The entire project was built on open-source software to facilitate replication and expansion. The numerical model provides building blocks for simulations of large wind turbine arrays, computational resources permitting. The numerical model currently replicates a three by one array of wind turbines in the FPF, and provides detailed insight into the array fluid dynamics

Abductive retrieval for multimedia information seeking

In this paper we discuss an approach to the retrieval of data annotated using the MPEG-7 multimedia description schema. In particular we describe a framework for the retrieval of annotated video samples that is based on principles from the area of abductive reasoning