A gyógypedagógia változó identitása. Paradoxonok és dilemmák a kultúra és a tér nézőpontjából

E tanulmány paradoxonokat és dilemmákat azonosít, amelyekkel azok a gyógypedagógiai kutatók és gyakorlati szakemberek kerülnek szembe, akik megpróbálnak társadalmilag igazságos oktatási rendszert teremteni egy olyan társadalomban, amelyet egyre összetettebb különbségek jellemeznek. A szerző amellett érvel, hogy a kutatói párbeszéd két legfőbb területének (az inklúziónak és a felülreprezentáltságnak) egy teljesebb dialógusban kellene találkoznia és fel kell ismerniük azt a „zavaró csöndet”, amely a két szakirodalmi rendszeren belül és közöttük fennáll. Az elemzést az oktatási reformmal kapcsolatos jelenlegi erőfeszítések és kétségek szélesebb politikai kontextusába belehelyezve, a szerző széleskörű áttekintést nyújt egy sokrétegű kultúráról és térről

Internal rotor friction instability

The analytical developments and experimental investigations performed in assessing the effect of internal friction on rotor systems dynamic performance are documented. Analytical component models for axial splines, Curvic splines, and interference fit joints commonly found in modern high speed turbomachinery were developed. Rotor systems operating above a bending critical speed were shown to exhibit unstable subsynchronous vibrations at the first natural frequency. The effect of speed, bearing stiffness, joint stiffness, external damping, torque, and coefficient of friction, was evaluated. Testing included material coefficient of friction evaluations, component joint quantity and form of damping determinations, and rotordynamic stability assessments. Under conditions similar to those in the SSME turbopumps, material interfaces experienced a coefficient of friction of approx. 0.2 for lubricated and 0.8 for unlubricated conditions. The damping observed in the component joints displayed nearly linear behavior with increasing amplitude. Thus, the measured damping, as a function of amplitude, is not represented by either linear or Coulomb friction damper models. Rotordynamic testing of an axial spline joint under 5000 in.-lb of static torque, demonstrated the presence of an extremely severe instability when the rotor was operated above its first flexible natural frequency. The presence of this instability was predicted by nonlinear rotordynamic time-transient analysis using the nonlinear component model developed under this program. Corresponding rotordynamic testing of a shaft with an interference fit joint demonstrated the presence of subsynchronous vibrations at the first natural frequency. While subsynchronous vibrations were observed, they were bounded and significantly lower in amplitude than the synchronous vibrations

Foundations of a socio-cultural perspective on teacher performance assessment

In this chapter, we are concerned with the theories of learning underpinning models of assessment for preservice teachers in urban contexts. One fundamental premise in this chapter is that teacher performance assessment ought to document teacher learning. In outlining this perspective, we draw specifically on the sociocultural perspectives on learning and development that have grown primarily out of the work of Russian psychologists Vygotsky, Leont’ev, and Luria

Beyond Convictions: Interrogating Culture, History, and Power in Inclusive Education

This is the publisher's official version, also available at: http://www.ncte.org/library/NCTEFiles/Resources/Journals/LA/08440march07/LA0844Focus.pd

Inclusive education’s promises and trajectories: Critical notes about future research on a venerable idea

The purpose of this article is to offer critical notes on inclusive education research in the U.S. We discuss issues germane to conceptual clarity and the ways in which inclusive education interacts with reforms that share equity goals, noting disruptions and unintended consequences that arise at the nexus of these reforms. In addition, we identify enduring challenges and paradoxes in this research literature. These include sampling issues, an emphasis on where students are placed as a proxy for inclusive education vis-à-vis inclusive education as the transformation of educational systems, the ways in which outcome measures have been examined in this research, and the need for and challenges of building strategic alliances that could advance an inclusive education agenda. We conclude with reflections and suggestions for a future research program that include sharpening inclusion’s identity, attending to the fluid nature of ability differences and students’ multiple identities, broadening the unit of analysis to systems of activities, and documenting processes and outcomes

Numerical, analytical, experimental study of fluid dynamic forces in seals

NASA/Lewis Research Center is sponsoring a program for providing computer codes for analyzing and designing turbomachinery seals for future aerospace and engine systems. The program is made up of three principal components: (1) the development of advanced three dimensional (3-D) computational fluid dynamics codes, (2) the production of simpler two dimensional (2-D) industrial codes, and (3) the development of a knowledge based system (KBS) that contains an expert system to assist in seal selection and design. The first task has been to concentrate on cylindrical geometries with straight, tapered, and stepped bores. Improvements have been made by adoption of a colocated grid formulation, incorporation of higher order, time accurate schemes for transient analysis and high order discretization schemes for spatial derivatives. This report describes the mathematical formulations and presents a variety of 2-D results, including labyrinth and brush seal flows. Extensions of 3-D are presently in progress

A gyógypedagógia változó identitása : paradoxonok és dilemmák a kultúra és a tér nézőpontjából

E tanulmány paradoxonokat és dilemmákat azonosít, amelyekkel azok a gyógypedagógiai kutatók és gyakorlati szakemberek kerülnek szembe, akik megpróbálnak társadalmilag igazságos oktatási rendszert teremteni egy olyan társadalomban, amelyet egyre összetettebb különbségek jellemeznek. A szerző amellett érvel, hogy a kutatói párbeszéd két legfőbb területének (az inklúziónak és a felülreprezentáltságnak) egy teljesebb dialógusban kellene találkoznia és fel kell ismerniük azt a „zavaró csöndet”, amely a két szakirodalmi rendszeren belül és közöttük fennáll. Az elemzést az oktatási reformmal kapcsolatos jelenlegi erőfeszítések és kétségek szélesebb politikai kontextusába belehelyezve, a szerző széleskörű áttekintést nyújt egy sokrétegű kultúráról és térről

The cartujano stock of the spanish horse in America

The Cartujano stock of the Spanish horse is eumetric, mesomorphous, constitutionally compact and with subconvex profile. It shows a bright and energic aspect, with appreciable elevations and extensions. Its constitutional type is orthostenic or equanimous, its character is noble and docile. It is very interesting for the breaking in high school. This stock has its origin in the farm created by the Cartujanos monks from Jerez de la Frontera, in 1492. Today it can be find in Colombia on Mr. Francisco León Arboleda’s farm; in Costa Rica included in the farms of Mr. Mariano Guardia and Mr. Jorge Herrera, among others. Also in Cuba bought by Mr. Fidel Castro; in E.E.U.U. included in the farms of Mr. Currier, Mr. Broston, Mr. Parkinson, Mr. Garmendia and Mr. Alcalde, among others. In Mexico the most important breeders are Mr. Miguel Alemán, Mr. Enrique Alvarez and Mr. Plácido Arango. We also find this stock in other countries such as Nicaragua, Perú, Venezuela, etc. All that shows its important genetic contribution to the Spanish Breed horse in America.La estirpe Cartujana del Caballo Español es eumétrica, mesomorfa, constitucionalmente compacta y de perfil subconvexo. Esto le da un aspecto elegante y enérgico, con una apreciable elevación y extensión. Su tipo constitucional es ortosténico ó equilibrado, su carácter es noble y dócil. Es muy adecuada para la doma de Alta Escuela. Tiene su origen en la ganadería creada por los monjes Cartujanos de Jerez de la Frontera, en 1492. Se emplea aun como mejorante del caballo de raza española en Colombia (ganadería de D. Francisco León Arboleda) y en Costa Rica en las ganaderías del Sr. Mariano Guardia, D. Jorge Herrera y otras. También en Cuba fue comprada por el Sr. Fidel Castro; en USA se encuentra en las ganaderías de los sres. Currier, Broston, Parkinson, Garmendia, Alcalde, y otros. En México los ganaderos más importantes son D. Miguel Alemán, D. Enrique Alvarez y D. Plácido Arango. También está presente en Nicaragua, Perú, Venezuela, etc. Lo que demuestra su importante aportación genética al caballo Español en América

Understanding the Dialectics of the Local and the Global in Education for All: A Comparative Case Study

This is the publisher's version, also available electronically from http://journals.sfu.ca/iccps/index.php/childhoods/article/view/7.This article is part of a special issue edited by Marianne Bloch and Beth Blue Swadener