Development of 30 InDel markers typing system and genetic analysis in five different Chinese populations

Allele frequencies of 30 InDel markers previously selected and validated for forensic purpose were assessed in 419 unrelated individuals originating from five different populations of Chinese Han, Chinese Hui, Uighur, Mongolian and Tibetan in P.R. China. Hardy–Weinberg equilibrium tests and linkage disequilibrium analysis were performed and the results showed that allele frequency distributions of the 30 InDel markers had meet the genetic equilibrium in all of the five populations and the InDel markers on same chromosome did not generate any linkage block. Analysis of molecular variance (AMOVA) indicated that genetic variation among the 5 studied populations represent only 4.00% of the total genetic diversity. We observed the cumulative power of discrimination (CPD) for each studied population was 0.99999999999841 in Chinese Han population, 0.99999999999690 in Chinese Hui population, 0.99999999999709 in Uighur population, 0.99999999999772 in Mongolian population and 0.99999999999854 in Tibetan population.     

Comment on Carl Abbott's “The Portland region: Where city and suburbs talk to each other—and often agree”

Abstract

The Portland, OR, area's urban growth boundary is an idea whose benefits to the region may depend on a willingness to expand the boundary occasionally. The parable contained in this comment suggests that the declared unwillingness to expand the urban growth boundary could have contributed to Portland's recent sudden increase in housing prices. It further suggests that an inflexible attitude toward the boundary could cause long‐run losses in employment in the Portland region, with few if any offsetting environmental benefits. Other regions should be aware of the potential drawbacks of installing such a boundary.     

Neighborhood change and the city of New York's ten‐year housing plan

Abstract

This article examines neighborhood changes associated with New York City's Ten‐Year Plan—the largest municipal housing program in the United States. We examine indicators of change, in the context of two possible hypotheses about the program's impact: (1) neighborhood revitalization, including improved physical and housing market conditions, as well as gentrification, and (2) the concentration of poor and welfare‐dependent households, as well as the possibility of residential segregation by race or ethnicity.

Our results present a mixed picture, with some evidence favoring both hypotheses, especially when parts of the city, particularly the South Bronx, are examined separately. Specifically, the program is associated with steep declines in the rate of boarded‐up buildings and some indications of increased home values, as well as rent burdens. However, it is also correlated with increases in maintenance deficiencies and a greater proportion of poor, single‐parent, and welfare‐dependent households, but there is little evidence of accentuated residential segregation.     

New York city and subsidized housing: Impacts and lessons of the city's $5 billion capital budget housing plan

Abstract

New York City has devoted far more resources to the development and rehabilitation of affordable housing than any other U.S. city, investing more than $4 billion from 1986 to 1997. This article surveys the impact, status, and implications of New York's housing programs. It looks at correlations between publicly funded housing starts and changes in the housing stock, welfare rolls, and crime and at the economic impact of the city's housing investments within low‐income neighborhoods.

New York's housing programs have transformed neighborhoods, replacing large swaths of abandoned shells and vacant land with new housing and preserving thousands of buildings at risk of abandonment. While these housing investments correlate most strongly with reductions in vacant units and vacant lots, they also show significant correlations with reductions in welfare rolls and violent crime, but uneven economic impacts as well. New York's housing programs are important nationally less for the specifics of particular programs than for the institutional collaborations on which they are founded.     

Some realities about sprawl and urban decline

Abstract

Many urban analysts believe suburban sprawl has become an important issue because it helps generate two types of problems: growth‐related difficulties like rising traffic congestion, and high concentrations of poor minority households in core‐area neighborhoods. However, a careful regression analysis of measures of both sprawl and urban decline shows no statistically significant relation between these two conditions.

The basic nature of the American urban development process would cause core‐area poverty concentrations even if sprawl were replaced by more compact growth forms. But sprawl does aggravate growth‐related problems. Those problems could be attacked through either alternative overall growth strategies—such as high‐density, tightly bounded growth—or specific anti‐sprawl tactics, such as regional tax‐base sharing and regional coordination of land uses. But no feasible policies are likely either to alleviate traffic congestion much or cause most American regions to abandon sprawl.     

The redevelopment of distressed public housing: Early results from HOPE VI projects in Atlanta,Chicago, and San Antonio

Abstract

The redevelopment of distressed public housing under the Urban Revitalization Demonstration Program, or HOPE VI, has laudable social, physical, community, and economic goals. Three public housing projects in Atlanta, Chicago, and San Antonio demonstrate the complexity and trade‐offs of trying to lessen the concentration of low‐income households, leverage private resources, limit project costs, help residents achieve economic self‐sufficiency, design projects that blend into the community, and ensure meaningful resident participation in project planning.

Although worthwhile and ambitious, HOPE VI cannot achieve all these goals. More of them can be achieved by developing strategies related to the strength of the local real estate market. To that end, the U.S. Department of Housing and Urban Development and public housing authorities must use the market‐based tools in the Quality Housing and Work Responsibility Act of 1998. Standards for improved physical design and resident participation and further research on critical supportive services for residents are also needed.     

The contributions of historic preservation to housing and economic development

Abstract

Historic preservation contributes greatly to housing and economic development. Historic preservation has produced almost 250,000 housing units through use of the federal historic rehabilitation tax credit. Additionally, heritage tourism is a multibillion‐dollar industry, and preservation projects help further community revitalization.

Historic preservation also has a downside. Preservation's growing popularity may dilute its imperative and market prowess, and some argue it is used to thwart new development. Preservation requirements may impede affordable housing production and displace area residents. These undesirable consequences are not givens, however. Preservationists are working to become more flexible, and we suggest ways to practice historic preservation while mitigating some of its negative consequences—for example, tax credit changes, more flexible building codes, and a “tiered” system of designating historic properties at varying levels of significance.     

Revitalizing inner‐city neighborhoods: New York city's Ten‐Year Plan

Abstract

This article examines the impact of New York City's Ten‐Year Plan on the sale prices of homes in surrounding neighborhoods. Beginning in the mid‐1980s, New York City invested $5.1 billion in constructing or rehabilitating over 180,000 units of housing in many of the city's most distressed neighborhoods. One of the main purposes was to spur neighborhood revitalization.

In this article, we describe the origins of the Ten‐Year Plan, as well as the various programs the city used to implement it, and estimate whether housing built or rehabilitated under the Ten‐Year Plan affected the prices of nearby homes. The prices of homes within 500 feet of Ten‐Year Plan units rose relative to those located beyond 500 feet, but still within the same census tract. These findings are consistent with the proposition that well‐planned project‐based housing programs can generate positive spillover effects and contribute to efforts to revitalize inner‐city neighborhoods.     

The Mujahideen in Bosnia: the foreign fighter as cosmopolitan citizen and/or terrorist

This article explores the idea of the Mujahideen in Bosnia as ‘cosmopolitan citizens’. During the Balkan War in the early 1990s, these foreign fighters flocked to Bosnia in order to take up arms alongside those whom they understood to be their besieged Muslim brethren. Although this act of transborder mobilization can be framed as an act of cosmopolitan citizenship, the subsequent ‘problem’ of the Mujahideen in a post-9/11 context destabilized their original cosmopolitan act through a re-enactment of borders and the revocation of their (literal) citizenship. Within the larger post-9/11 narrative, where the Mujahideen must necessarily be understood as terrorists/potential terrorists, they are an interesting point of study in an examination of what can be seen as the sinister side of transnational citizenship, and they expose what Appadurai (A. Appadurai, 2006. Fear of small numbers: an essay on the geography of anger. Durham: Duke University Press.) calls our ‘fear of small numbers’. Particularly compelling is that the post-9/11 Mujahid is an unsympathetic figure, and is always already a questionable candidate for ‘citizenship’ as it is commonly understood. Furthermore, his (sic) original ‘cosmopolitan’ act suggests that, although the ‘cosmopolitan ideal’ is the achievement of a citizenship that transcends or escapes borders, the cosmopolitical must nevertheless be assigned value in order to be ethically intelligible.     

Knowledge free and ‘unfree’: Epistemic tensions in plant knowledge at the Cape in the 17th and 18 th centuries1

ABSTRACT

This article utilises the same epistemic objects, particular indigenous medicinal plants of the Cape region, to explore the gamut of epistemologies in contested, dynamic tension in the early Cape Colony: That of the frontiersman, the Khoikhoi, the Sonqua or Sankwe, and the slave. Drawing on a transdisciplinary set of literatures, the article puts Africana studies, the study of indigenous knowledge systems, and social studies of science and technology in wider conversation with each other, and argues for the adoption of an epistemic openness, methodologies which ‘braid’ seemingly separate strands of social history and differing knowledge practices, and cross-border collaboration among scholars of African and African diasporic knowledges. The findings and interpretation suggest new ways to view the ‘multiplexity’ of early indigenous southern African botanical, therapeutic and ecological knowledges, as well as the necessity for rethinking both the construction of colonial sciences and contemporary concerns about indigenous knowledge, biosciences and their 21^st century interaction.