11,269 research outputs found
Randomized Polypill Crossover Trial in People Aged 50 and Over
PMCID: PMC3399742This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Falling into the gap: The coloniality of achievement gap discourses and their responses
This paper critically analyzes gap discourses in student learning, starting from the achievement gap, education debt, and opportunity gaps, applying the lens of coloniality, racial capitalism, and modernity (CRCM). Gap discourses are the prevalent rationale behind educational policies and school reforms globally. Specifically in the United States, achievement gap discourses contribute substantially to the educational framework that minoritized students (students of color) are inherently – intellectually and academically – behind White students. This paper will show the pervasive power of achievement gap discourses and their influence on school policy, practices, and norms. Additionally, we highlight how some of the most formidable achievement gap critiques fail to grasp the power of gap discourses. In some cases, these critiques end up reifying White supremacy ideologies. We propose a decoloniality framework or a layered and multi-disciplinary response to help re-think the entire gap discourses informed by White supremacy
Between a Rock and a Hard Place: Minoritized Communities, Urban School Reform, School Policies, and Mayoral Control
The purpose of this study is to explore a federal turnaround policy under a mayoral-controlled Northeastern school district that began in 2013. The study utilizes discourse and document analysis and interviews, as well as a life history methodology to explore the perspectives of educators, local politicians, and community activists from Black and Latinx communities, as well as other minoritized populations, within the jurisdiction of the school district. The framework for this study draws on a critical analysis of educational policy studies and utilizes Sandra Stein’s (2004) Culture of Education Policy framework to highlight discourses and language used to frame individuals and groups. This study analyzes a forced leadership change and focuses on a particular elementary school as a result of the implementation of a turnaround policy, and offers some implications for educational policy, reform, and leadership practices
DETERMINING THE EFFECTS OF LAND CHARACTERISTICS ON FARMLAND VALUES IN SOUTH-CENTRAL IDAHO
This study focused on evaluating the effects of different attributes that impact irrigated farmland values in South-central Idaho. Results indicate that study area farmland values are largely determined by agricultural productivity (profiability) related factors. However, estimated "development increment values" for parcels that seemed to be under development pressure in the study area are explainable by nonagricultural variables.Land Economics/Use,
Infrared images of merging galaxies
Infrared imaging of interacting galaxies is especially interesting because their optical appearance is often so chaotic due to extinction by dust and emission from star formation regions, that it is impossible to locate the nuclei or determine the true stellar distribution. However, at near-infrared wavelengths extinction is considerably reduced, and most of the flux from galaxies originates from red giant stars that comprise the dominant stellar component by mass. Thus near infrared images offer the opportunity to study directly components of galactic structure which are otherwise inaccessible. Such images may ultimately provide the framework in which to understand the activity taking place in many of the mergers with high Infrared Astronomy Satellite (IRAS) luminosities. Infrared images have been useful in identifying double structures in the nuclei of interacting galaxies which have not even been hinted at by optical observations. A striking example of this is given by the K images of Arp 220. Graham et al. (1990) have used high resolution imaging to show that it has a double nucleus coincident with the radio sources in the middle of the dust lane. The results suggest that caution should be applied in the identification of optical bright spots as multiple nuclei in the absence of other evidence. They also illustrate the advantages of using infrared imaging to study the underlying structure in merging galaxies. The authors have begun a program to take near infrared images of galaxies which are believed to be mergers of disk galaxies because they have tidal tails and filaments. In many of these the merger is thought to have induced exceptionally luminous infrared emission (cf. Joseph and Wright 1985, Sanders et al. 1988). Although the optical images of the galaxies show spectacular dust lanes and filaments, the K images all have a very smooth distribution of light with an apparently single nucleus
Evidence for extended IR emission in NGC2798 and NGC6240
Extended emission at 10 and 20 microns can be used to distinguish starbursts from monsters as the underlying energy source driving the luminous infrared emission in the central regions of galaxies. The spatial extent of the mid infrared emission in the interacting galaxy NCG 2798 and the merger NGC 6240 were investigated. The 10 and 20 micron profiles of the IR source in NGC 2798 are significantly wider than beam profiles measured on a standard star, supporting a starburst interpretation of its IR luminosity. For NGC 6240 there is marginal evidence for an extended 10 micron source, suggesting that a significant fraction of its IR luminosity could be produced by a burst of star formation
Levels Taken on the Nike Bastion
T HE SCHOLARSHIP on the Akropolis of Athens is the most extensive, intricate, and potentially confusing of that for any site in Greece. This is owing partly to the intricacies of the site itself, whose stages extend from the Bronze Age through the Classical period to the Turkish occupation. Just as daunting, however, is a long and varied history of excavation. Much of the site was excavated in the 19th century, when scientific archaeology was in its infancy, and a good portion of more recent work has remained partly or wholly unpublished. My recent study of the Sanctuary of Athena Nike brought me face to face with these problems. ' The encounter makes me all the more appreciative of how James Wright negotiates similar obstacles in his article on the Mycenaean entrance at the west side of the Akropolis, published in the 1994 volume of this journal.2 Wright and I have shared an interest in the Nike Bastion for many years and have talked back and forth on a number of points as work progressed. On one knotty problem we have long disagreed: the original height of the Mycenaean bastion. My study follows Iakovidis and Travlos in positing a gate wall northeast of the Mycenaean Nike Bastion; the original height of the bastion thus comes to 144.0 m. or more above sea level.
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