Homelessness as an Impediment to Urban Revitalization: the Case of Dallas, Texas

Homelessness has long been recognized as a serious problem in many American cities, and Dallas in no exception. What’s more, the homeless tend to congregate in the downtown districts (DD) since most service providers are also located in the urban core. Though homelessness is typically considered a social problem, it also has economic consequences. The latest homeless census for the city of Dallas totaled 6,000, and annual outlays by governmental, non-profit, charitable, and faith-based organizations to provide them with services probably exceed $50 million. This estimate doesn’t include thousands of volunteer hours. But the true economic cost of homelessness is much greater. A survey of downtown business owners found that the presence of homeless persons is having a negative affect on their operations and burdening many of them with additional costs for security and cleaning. A majority of retail respondents report that proximity to the homeless was scaring off customers and reducing their sales. An examination of downtown properties using Dallas County Appraisal District (DCAD) records reveals that average values in the southern sector, where most of the homeless are concentrated, are well below those in the northern half of downtown. Consequently, the City of Dallas, Dallas County, and the Dallas Independent School District are losing$2.4 million per year due to valuation disparities from a lack of development in the southern half of the DD. What’s more, we estimate the southern half of downtown can potentially support almost 2.2 million square feet of additional commercial, office and residential space. This development scenario would create more than 5,000 new jobs and generate about $6.6 million per year for local taxing entities. But the revitalization of Dallas’ DD, an avowed goal of the city’s political and business leaders, will not be fully realized until a comprehensive plan for improving homeless services is developed and implemented. Most importantly, the proposed central intake facility should be located away from—but close to—the downtown district. In this regard, the City of Miami can serve as a model. Miami has significantly reduced the visible homeless count and greatly improved the delivery of services. By creating an umbrella agency to oversee all homeless programs—whether provided by government, voluntary or faith-based institutions—the city has avoided duplication and overlap of services. Significantly, Miami has located both of its central intake facilities, known as Homeless Assistance Centers (HACs), away from their downtown district. Miami’s businesses community has recognized that reducing homelessness is a community and economic development issue as well as a social problem, and to that end they have contributed about$50 million over the past decade. The results are tangible, as evidenced by the construction boom currently underway in Miami’s downtown. As with Miami, an effective approach for dealing with Dallas’ homeless population must include greater participation and support by the region’s business leaders. Homelessness has significant economic as well as social consequences for the City of Dallas. While offering our compassion to the homeless, we should also acknowledge that the overwhelming presence of homeless persons on the streets of downtown has negative economic impacts on individual businesses, the prospects for redevelopment, and the city’s finances.

Homelessness as an Impediment to Urban Revitalization: the Case of Dallas, Texas

Homelessness has long been recognized as a serious problem in many American cities, and Dallas in no exception. What’s more, the homeless tend to congregate in the downtown districts (DD) since most service providers are also located in the urban core. Though homelessness is typically considered a social problem, it also has economic consequences. The latest homeless census for the city of Dallas totaled 6,000, and annual outlays by governmental, non-profit, charitable, and faith-based organizations to provide them with services probably exceed $50 million. This estimate doesn’t include thousands of volunteer hours. But the true economic cost of homelessness is much greater. A survey of downtown business owners found that the presence of homeless persons is having a negative affect on their operations and burdening many of them with additional costs for security and cleaning. A majority of retail respondents report that proximity to the homeless was scaring off customers and reducing their sales. An examination of downtown properties using Dallas County Appraisal District (DCAD) records reveals that average values in the southern sector, where most of the homeless are concentrated, are well below those in the northern half of downtown. Consequently, the City of Dallas, Dallas County, and the Dallas Independent School District are losing$2.4 million per year due to valuation disparities from a lack of development in the southern half of the DD. What’s more, we estimate the southern half of downtown can potentially support almost 2.2 million square feet of additional commercial, office and residential space. This development scenario would create more than 5,000 new jobs and generate about $6.6 million per year for local taxing entities. But the revitalization of Dallas’ DD, an avowed goal of the city’s political and business leaders, will not be fully realized until a comprehensive plan for improving homeless services is developed and implemented. Most importantly, the proposed central intake facility should be located away from—but close to—the downtown district. In this regard, the City of Miami can serve as a model. Miami has significantly reduced the visible homeless count and greatly improved the delivery of services. By creating an umbrella agency to oversee all homeless programs—whether provided by government, voluntary or faith-based institutions—the city has avoided duplication and overlap of services. Significantly, Miami has located both of its central intake facilities, known as Homeless Assistance Centers (HACs), away from their downtown district. Miami’s businesses community has recognized that reducing homelessness is a community and economic development issue as well as a social problem, and to that end they have contributed about$50 million over the past decade. The results are tangible, as evidenced by the construction boom currently underway in Miami’s downtown. As with Miami, an effective approach for dealing with Dallas’ homeless population must include greater participation and support by the region’s business leaders. Homelessness has significant economic as well as social consequences for the City of Dallas. While offering our compassion to the homeless, we should also acknowledge that the overwhelming presence of homeless persons on the streets of downtown has negative economic impacts on individual businesses, the prospects for redevelopment, and the city’s finances

I=3/2 KπK \pi Scattering in the Nonrelativisitic Quark Potential Model

We study $I=3/2$ elastic $K\pi$ scattering to Born order using nonrelativistic quark wavefunctions in a constituent-exchange model. This channel is ideal for the study of nonresonant meson-meson scattering amplitudes since s-channel resonances do not contribute significantly. Standard quark model parameters yield good agreement with the measured S- and P-wave phase shifts and with PCAC calculations of the scattering length. The P-wave phase shift is especially interesting because it is nonzero solely due to $SU(3)_f$ symmetry breaking effects, and is found to be in good agreement with experiment given conventional values for the strange and nonstrange constituent quark masses.Comment: 12 pages + 2 postscript figures, Revtex, MIT-CTP-210

J/\Psi \to \phi \pi \pi (K \bar{K}) decays, chiral dynamcis and OZI violation

We have studied the invariant mass distributions of the \pi\pi and K \bar{K} systems for invariant masses up to 1.2 GeV from the J/\Psi \to \phi \pi\pi(K\bar{K}) decays. The approach exploits the connection between these processes and the \pi\pi and K\bar{K} strange and non-strange scalar form factors by considering the \phi meson as a spectator. The calculated scalar form factors are then matched with the ones from next-to-leading order chiral perturbation theory, including the calculation of the the K\bar{K} scalar form factors. Final state interactions in the J/\Psi \to \phi \pi\pi (K\bar{K}) processes are taken into account as rescattering effects in the system of the two pseudoscalar mesons. A very good agreement with the experimental data from DM2 and MARK-III is achieved. Furthermore, making use of SU(3) symmetry, the S-wave contribution to the \pi^+\pi^- event distribution in the J/\Psi \to \omega \pi^+\pi^- reaction is also given and the data up to energies of about 0.7 GeV are reproduced. These decays of the J/\Psi to a vector and a pair of pseudoscalars turn out to be very sensitive to OZI violating physics which we parametrize in terms of a direct OZI violation parameter and the chiral perturbation theory low energy constants L_4^r and L_6^r. These constants all come out very different from zero, lending further credit to the statement that the OZI rule is not operative in the scalar 0^{++} channel.Comment: revtex, 21 pages, 10 figures, extended discussion of the model in section 2 and some minor corrections, version accepted for publication in Nucl. Phys.

Glueball spectrum based on a rigorous three-dimensional relativistic equation for two-gluon bound states I: Derivation of the relativistic equation

A rigorous three-dimensional relativistic equation satisfied by two-gluon bound states is derived from the QCD with massive gluons. With the gluon fields and the quark fields being expanded in terms of the gluon multipole fields and the spherical Dirac spinors respectively, the equation is well established in the angular momentum representation and hence is much convenient for solving the problem of two-gluon glueball spectra. In particular, the interaction kernel in the equation is exactly derived and given a closed expression which includes all the interactions taking place in the two-gluon glueballs. The kernel contains only a few types of Green's functions and commutators. Therefore, it is not only easily calculated by the perturbation method, but also provides a suitable basis for nonperturbative investigations

Glueball spectrum based on a rigorous three-dimensional relativistic equation for two-gluon bound states II: calculation of the glueball spectrum

In the preceding paper, a rigorous three-dimensional relativistic equation for two-gluon bound states was derived from the QCD with massive gluons and represented in the angular momentum representation. In order to apply this equation to calculate the glueball spectrum, in this paper, the equation is recast in an equivalent three-dimensional relativistic equation satisfied by the two-gluon positive energy state amplitude. The interaction Hamiltonian in the equation is exactly derived and expressed as a perturbative series. The first term in the series describes the one-gluon exchange interaction which includes fully the retardation effect in it. This term plus the linear confining potential are chosen to be the interaction Hamiltonian and employed in the practical calculation. With the integrals containing three and four spherical Bessel functions in the QCD vertices being analytically calculated, the interaction Hamiltonian is given an explicit expression in the angular momentum representation. Numerically solving the relativistic equation with taking the contributions arising from the retardation effect and the longitudinal mode of gluon fields into account, a set of masses for the $0^{++},0^{-+},1^{++},1^{-+},2^{++}$ and $2^{-+\text{}}$ glueball states are obtained and are in fairly good agreement with the predictions given by the lattice simulatio

The Jewish Unions in America

"Newly arrived in New York in 1882 from Tsarist Russia, the sixteen-year-old Bernard Weinstein discovered an America in which unionism, socialism, and anarchism were very much in the air. He found a home in the tenements of New York and for the next fifty years he devoted his life to the struggles of fellow Jewish workers. The Jewish Unions in America blends memoir and history to chronicle this time. It describes how Weinstein led countless strikes, held the unions together in the face of retaliation from the bosses, investigated sweatshops and factories with the aid of reformers, and faced down schisms by various factions, including Anarchists and Communists. He co-founded the United Hebrew Trades and wrote speeches, articles and books advancing the cause of the labor movement. From the pages of this book emerges a vivid picture of workers’ organizations at the beginning of the twentieth century and a capitalist system that bred exploitation, poverty, and inequality. Although workers’ rights have made great progress in the decades since, Weinstein’s descriptions of workers with jobs pitted against those without, and American workers against workers abroad, still carry echoes today. The Jewish Unions in America is a testament to the struggles of working people a hundred years ago. But it is also a reminder that workers must still battle to live decent lives in the free market. For the first time, Maurice Wolfthal’s readable translation makes Weinstein’s Yiddish text available to English readers. It is essential reading for students and scholars of labor history, Jewish history, and the history of American immigration.

S-wave Kpi scattering in chiral perturbation theory with resonances

We present a detailed analysis of S-wave Kpi scattering up to 2 GeV, making use of the resonance chiral Lagrangian predictions together with a suitable unitarisation method. Our approach incorporates known theoretical constraints at low and high energies. The present experimental status, with partly conflicting data from different experiments, is discussed. Our analysis allows to resolve some experimental ambiguities, but better data are needed in order to determine the cross-section in the higher-energy range. Our best fits are used to determine the masses and widths of the relevant scalar resonances in this energy region.Comment: 40 pages, 6 figure