Examining Co-teaching through A Socio-Technical Systems Lens

Qualitative research was conducted in a large suburban school district implementing co-teaching as a new service delivery model for special education. Researchers examined the changes that resulted from the new service delivery model using a socio-technical systems lens. This framework views schools as open systems that contain a structural, task, human, and technical subsystem. The intent of the study was to document the changes in each of these subsystems resulting from the implementation of co-teaching and to provide educators with strategies to implement co-teaching in a seamless and effective manner. Unanticipated challenges included scheduling, teacher work ethic, personality compatibility, classroom composition, and time

Examining A Decade Of Reading And Mathematics Student Achievement Among Primary And Secondary Traditional Public School And Charter School Students: A Meta-Analytic Investigation

The current investigation will synthesize numerous studies conducted across the nation at the elementary, middle and high school levels. Meta-analytic techniques will assist parents and educators in making evidence-based decisions while adding to the research supporting educational reform and promoting best practices in both educational models. This study was specifically designed to consider a number of variables in charter schools relative to traditional public schools, including socioeconomic status, English language learning, school competition, and eligibility for special education that may impact student mathematics and reading achievement. The findings of the current investigation suggest that students in charter school programs are not performing as well as students in traditional public schools on mathematics and reading achievement examinations

Charting human subcortical maturation across the adult lifespan with in vivo 7 T MRI

The human subcortex comprises hundreds of unique structures. Subcortical functioning is crucial for behavior, and disrupted function is observed in common neurodegenerative diseases. Despite their importance, human subcortical structures continue to be difficult to study in vivo. Here we provide a detailed account of 17 prominent subcortical structures and ventricles, describing their approximate iron and myelin contents, morphometry, and their age-related changes across the normal adult lifespan. The results provide compelling insights into the heterogeneity and intricate age-related alterations of these structures. They also show that the locations of many structures shift across the lifespan, which is of direct relevance for the use of standard magnetic resonance imaging atlases. The results further our understanding of subcortical morphometry and neuroimaging properties, and of normal aging processes which ultimately can improve our understanding of neurodegeneration

Towards the production of radiotherapy treatment shells on 3D printers using data derived from DICOM CT and MRI: preclinical feasibility studies

Background: Immobilisation for patients undergoing brain or head and neck radiotherapy is achieved using perspex or thermoplastic devices that require direct moulding to patient anatomy. The mould room visit can be distressing for patients and the shells do not always fit perfectly. In addition the mould room process can be time consuming. With recent developments in three-dimensional (3D) printing technologies comes the potential to generate a treatment shell directly from a computer model of a patient. Typically, a patient requiring radiotherapy treatment will have had a computed tomography (CT) scan and if a computer model of a shell could be obtained directly from the CT data it would reduce patient distress, reduce visits, obtain a close fitting shell and possibly enable the patient to start their radiotherapy treatment more quickly. Purpose: This paper focuses on the first stage of generating the front part of the shell and investigates the dosimetric properties of the materials to show the feasibility of 3D printer materials for the production of a radiotherapy treatment shell. Materials and methods: Computer algorithms are used to segment the surface of the patient’s head from CT and MRI datasets. After segmentation approaches are used to construct a 3D model suitable for printing on a 3D printer. To ensure that 3D printing is feasible the properties of a set of 3D printing materials are tested. Conclusions: The majority of the possible candidate 3D printing materials tested result in very similar attenuation of a therapeutic radiotherapy beam as the Orfit soft-drape masks currently in use in many UK radiotherapy centres. The costs involved in 3D printing are reducing and the applications to medicine are becoming more widely adopted. In this paper we show that 3D printing of bespoke radiotherapy masks is feasible and warrants further investigation