2,539 research outputs found

    Affordable Housing Crisis or Shortage?: Reconciling Legal Scholarship with Free Market Solutions Over the Use of Eminent Domain for Economic Development

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    Throughout the United States, low-income families are having an increasingly difficult time finding an affordable place to live.[1] Due to high rents, static incomes, and a shortage of housing, local communities, particularly in urban areas, are struggling to fight off this wave of decline and displacement.[2] Currently in the U.S., an estimated 12 million families are now spending more than half of their income on rent.[3] According to Federal Guidelines, “[f]amilies who pay more than 30 percent of their income for housing are considered cost burdened and may have difficulty affording necessities such as food, clothing, transportation, and medical care.”[4]A large reason for this overspending by low-income families is that the supply of affordable housing is shrinking.[5] Landlords and tenants both are adding to the affordable housing problem as “all sides are being squeezed.”[6] Today, most new construction on rental housing is for the high-end market, “not for low and middle-income families.”[7] So while the problem is clear, the cause of the problem is anything but.This note seeks a better understanding of the current housing problems plaguing local communities around the United States. Whether it is attributable to a crisis of societal construction or a shortage in the supply of affordable housing, this note attempts to reconcile current legal scholarship on local government initiatives, and

    Topology Change in (2+1)-Dimensional Gravity

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    In (2+1)-dimensional general relativity, the path integral for a manifold MM can be expressed in terms of a topological invariant, the Ray-Singer torsion of a flat bundle over MM. For some manifolds, this makes an explicit computation of transition amplitudes possible. In this paper, we evaluate the amplitude for a simple topology-changing process. We show that certain amplitudes for spatial topology change are nonvanishing---in fact, they can be infrared divergent---but that they are infinitely suppressed relative to similar topology-preserving amplitudes.Comment: 19 pages of text plus 4 pages of figures, LaTeX (using epsf), UCD-11-9

    Climatology of Mid-latitude Ionospheric Disturbances from the Very Large Array Low-frequency Sky Survey

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    The results of a climatological study of ionospheric disturbances derived from observations of cosmic sources from the Very Large Array (VLA) Low-frequency Sky Survey (VLSS) are presented. We have used the ionospheric corrections applied to the 74 MHz interferometric data within the VLSS imaging process to obtain fluctuation spectra for the total electron content (TEC) gradient on spatial scales from a few to hundreds of kilometers and temporal scales from less than one minute to nearly an hour. The observations sample nearly all times of day and all seasons. They also span latitudes and longitudes from 28 deg. N to 40 deg. N and 95 deg. W to 114 deg. W, respectively. We have binned and averaged the fluctuation spectra according to time of day, season, and geomagnetic (Kp index) and solar (F10.7) activity. These spectra provide a detailed, multi-scale account of seasonal and intraday variations in ionospheric activity with wavelike structures detected at wavelengths between about 35 and 250 km. In some cases, trends between spectral power and Kp index and/or F10.7 are also apparent. In addition, the VLSS observations allow for measurements of the turbulent power spectrum down to periods of 40 seconds (scales of ~0.4 km at the height of the E-region). While the level of turbulent activity does not appear to have a strong dependence on either Kp index or F10.7, it does appear to be more pronounced during the winter daytime, summer nighttime, and near dusk during the spring.Comment: accepted for publication in Radio Scienc

    Letter from Helen W. Cosgrove, Wellesley, Massachusetts, to Mrs. R. J. Waviern, Bath, New York, 1912 December 7

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    https://repository.wellesley.edu/studentcordavison/1144/thumbnail.jp

    Letter from Helen W. Cosgrove, Marlborough, Massachusetts, to Mrs. Nellie Waviern, Bath, New York, 1912 August 21

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    https://repository.wellesley.edu/studentcordavison/1074/thumbnail.jp

    'We capture their comments before we leave the station': Service user involvement in the delivery of Appropriate Adult Schemes

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    The concept of participation is now widely accepted in healthcare and social services, but is less apparent in the delivery of services for vulnerable people who encounter the Criminal Justice System and its associated agencies (Buck et al, 2020). This article considers the extent to which children and ‘vulnerable’ adults who have been detained in police custody are currently able to actively participate in the design and delivery of Appropriate Adult Schemes. This paper draws together responses from 43 services in England and Wales concerning levels of service user engagement to ascertain the current level of participation, and to make recommendations for the future. The paper applies Forbat, et al.'s (2009) models of service user involvement to conceptualise ideological drivers which underpin the Appropriate Adult Scheme's commitment to involvement. The data reveal that while there is a genuine desire to improve service user participation, that institutional, financial, and attitudinal barriers mean that participation either does not occur or is at a very cursory level

    Spatial arrangement of fold types in the Zagros Simply Folded Belt, Iran, indicated by landform morphology and drainage pattern characteristics

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    The spatial arrangement of fold types within the Zagros Simply Folded Belt was analysed using satellite images, a digital elevation model and a digital drainage network. Distinct fold geometries, principally fault-bend folds and detachment folds, can be identified by characteristic interactions with streams flowing SW from the High Zagros Mountains into the Persian Gulf. In addition, the morphology of the landforms is reflected in the minor channel patterns across the folds. This morphology can also be categorised using geomorphic indices, L/W ratio and symmetry index. The distribution of fold types is shown for the region N27°-N30°, E50°-E54° at a scale of 1:750,000. Anomalously long, high-aspect ratio folds, coincident with topographic steps, were inferred to be fault-bend folds, crossed by multiple wind gaps, overlying major thrust faults. These faults formed sequentially as the deformation front migrated from the collision zone towards the SW, causing diversion of stream channels. Movement up thrust ramps created fault-bend folds behind which serial detachment folding developed in the cover

    Combined Remote Sensing and Field Investigations of Hydrocarbon Trap Analogue Structures: Examples from the Zagros Simply Folded Belt, Iran and the Sawtooth Range, Montana [ABSTRACT]

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    First paragraph of abstract: Structures that outcrop at the surface in fold-thrust belts are frequently good analogues for hydrocarbon traps in compressional environments. Along-strike changes in structure and geometry have important implications for connectivity and fluid flow throughout the petroleum system, e.g. in the Zagros Simply Folded Belt, Iran, and in a surface reservoir analogue in the Sawtooth Range, Montana

    Late Cretaceous to Recent Deformation Related to Inherited Structures and Subsequent Compression within the Persian Gulf: A 2D Seismic Case Study

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    The Persian Gulf is part of an asymmetric foreland basin related to the Zagros Orogen. Few published studies of this basin and associated onshore areas include seismic reflection data. We present a seismic-stratigraphic interpretation based on marine 2D seismic data, which reveals the presence of two types of compressional structures within the basin: (1) faulted domes related to salt movement and the offshore trace of a NNE–SSW-trending dextral basement fault (the Kazerun Fault); (2) long-wavelength (16 km), low-amplitude (60 ms two-way travel time) folds relating to the advancing deformation front associated with the orogen. Thinning of age-constrained stratal units across structures related to the offshore trace of the Kazerun Fault implies a distinct pulse of uplift on this fault during the Maastrichtian. The geometry of growth strata across other intra-basin structures suggests a second, later stage of deformation, which began in the Middle Miocene. Thickening and folding of post-Middle Miocene stratal units towards the NE (i.e. towards the Zagros Orogen) is interpreted to reflect rapid loading, subsidence and compression related to southwestwards advance of the orogen. The results of this study have implications for the interaction between pre-existing structures and later compressional events both within the Persian Gulf and elsewhere

    Late Cretaceous to Recent Deformation Related to Inherited Structures and Subsequent Compression within the Persian Gulf: A 2D Seismic Case Study

    Get PDF
    The Persian Gulf is part of an asymmetric foreland basin related to the Zagros Orogen. Few published studies of this basin and associated onshore areas include seismic reflection data. We present a seismic-stratigraphic interpretation based on marine 2D seismic data, which reveals the presence of two types of compressional structures within the basin: (1) faulted domes related to salt movement and the offshore trace of a NNE–SSW-trending dextral basement fault (the Kazerun Fault); (2) long-wavelength (16 km), low-amplitude (60 ms two-way travel time) folds relating to the advancing deformation front associated with the orogen. Thinning of age-constrained stratal units across structures related to the offshore trace of the Kazerun Fault implies a distinct pulse of uplift on this fault during the Maastrichtian. The geometry of growth strata across other intra-basin structures suggests a second, later stage of deformation, which began in the Middle Miocene. Thickening and folding of post-Middle Miocene stratal units towards the NE (i.e. towards the Zagros Orogen) is interpreted to reflect rapid loading, subsidence and compression related to southwestwards advance of the orogen. The results of this study have implications for the interaction between pre-existing structures and later compressional events both within the Persian Gulf and elsewhere
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