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Kathe Newman 《Housing Studies》2004,19(1):53-83
Since the late 1980s, mutually reinforcing trends in economic growth, public policy, and community activism have fostered a wave of residential mortgage lending to ‘underserved markets’ in US cities. Yet many of the changes in housing finance that supported sustainable home ownership also lured a new generation of subprime and predatory credit institutions specialising in high-cost, high-risk lending. For many urban and minority neighbourhoods, the old problems of exclusionary redlining are now accompanied by new dilemmas of exploitive greenlining. This paper analyses the market penetration of subprime lending institutions and the subsequent concentration of mortgage ‘pre-foreclosures’ in low- and moderate-income, African American neighbourhoods. Focusing on Newark, NJ, and its surrounding suburbs, Gary King's ecological inference technique and a series of logistic regression models are used to assess the role of borrower characteristics, institutional divisions, and neighbourhood context in the process of mortgage market segmentation. The evidence corroborates theories emphasising the dynamics of capital investment, financial services restructuring, and the economic incentives for racial-geographic targeting, and not the presumed credit deficiencies of urban and minority home owners. Unfortunately, the tidy empirical analysis offered here is overshadowed by the enormous societal experiment now underway across the US, as a wave of delinquencies, defaults and foreclosures undermines the belated minority home ownership gains achieved during the unprecedented boom of the 1990s. 相似文献
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There is some doubt concerning the identity of the emulsion vehicle used in J. B. Dancer’s microphotographs. Separation and analytical identification revealed that in two specimens the binder was collodion. 相似文献
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Careful selection of steaming and attrition conditions during thermo‐mechanical pretreatment can increase enzymatic conversion of softwood 下载免费PDF全文
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This is a review of the photochromism of inorgonic ond co-ordinotion compounds. Reoction mechanisms are discussed and methods of investigating the phenomenon are indicated. 相似文献
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Newman Julie Bapp; DeBastos Angela Gustafson; Batton Daniel; Raz Sarah 《Canadian Metallurgical Quarterly》2011,25(5):666
Objective: The neuropsychological outcome of chronic lung disease (CLD) in the very preterm (VP) infant may be determined by a process involving chronic hypoxia, with superimposed acute hypoxic episodes, in the developing brain. We wished to study the differences in quality of outcome between VP preschoolers with and without history of the most common form of CLD in the preterm infant, bronchopulmonary dysplasia (BPD). We also examined the strength of association between BPD severity and neuropsychological outcome, with degree of severity defined according to the National Institute of Child Health and Human Development (NICHD) National Heart, Lung and Blood Institute (NHLBI) Workshop categorical ranking scheme (Jobe & Bancalari, 2001) or in accord with dimensional views of severity of respiratory illness. Method: We evaluated the intellectual, language, and motor outcomes of 156, predominantly middle-class preschoolers with history of VP birth, with (n = 80) or without (n = 76) BPD. We used supplemental oxygen requirement or need for mechanical ventilation as indirect indexes of respiratory dysfunction. Results: Following adjustment for potentially confounding sociodemographic variables and perinatal medical risk factors, we found no group differences in neuropsychological outcome based on categorical ranking of BPD severity. However, continuous measures of BPD severity accounted for a unique portion of the variance in fine motor performance (η2p = .05), while patent ductus arteriosus, a risk marker or antecedent of BPD, explained a unique portion of the variance in both receptive language (η2p = .048), and gross motor (η2p = .061) function. Conclusion: A significant, yet circumscribed, association was demonstrated between neonatal hypoxic risk, in the VP infant, and neuropsychological outcome assessed in the preschool years. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献
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Mario Caironi Matt Bird Daniele Fazzi Zhihua Chen Riccardo Di Pietro Christopher Newman Antonio Facchetti Henning Sirringhaus 《Advanced functional materials》2011,21(17):3371-3381
Charge transport is investigated in high‐mobility n‐channel organic field‐effect transistors (OFETs) based on poly{[N,N′‐bis(2‐octyldodecyl)‐naphthalene‐1,4,5,8‐bis(dicarboximide)‐2,6‐diyl]‐alt‐5,5′‐(2,2′‐bithiophene)} (P(NDI2OD‐T2), Polyera ActivInk? N2200) with variable‐temperature electrical measurements and charge‐modulation spectroscopy. Results indicate an unusually uniform energetic landscape of sites for charge‐carrier transport along the channel of the transistor as the main reason for the observed high‐electron mobility. Consistent with a lateral field‐independent transport at temperatures down to 10 K, the reorganization energy is proposed to play an important role in determining the activation energy for the mobility. Quantum chemical calculations, which show an efficient electronic coupling between adjacent units and a reorganization energy of a few hundred meV, are consistent with these findings. 相似文献
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Research that integrates the social and natural sciences is vital to address many societal challenges, yet is difficult to arrange, conduct, and disseminate. This paper compares diffusion of the research supported by a unique U.S. National Science Foundation program on Human and Social Dynamics (“HSD”) with a matched group of heavily cited papers. We offer a measure of the distance of cites between the Web of Science Category (“WoSC”) in which a publication appears and the WoSC of the journal citing it, and find that HSD publications are cited more distantly than are comparison publications. We provide another measure—citation velocity—finding that HSD publications are cited with similar lag times as are the comparison papers. These basic citation distance and velocity measures enrich analyses of research knowledge diffusion patterns. 相似文献