922 research outputs found

    An exploration of interdisciplinary collaboration when serving students with moderate and severe disabilities at the middle and high school levels: A current snapshot of perceived barriers and opportunities

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    This study investigated current perceptions of the barriers and the opportunities for interdisciplinary collaboration among Special Educators and Related Health Service Personnel at the middle and high school levels when serving students with moderate and severe disabilities. In order to serve individuals with moderate and severe disabilities in accordance with federal legislation and current best practice, it is important that education and related health services professionals work together collaboratively.;The design of this study combined a simple quantitative survey measure with exploratory, qualitative inquiry using a series of open-ended focus group interviews. Sampling for this research study was purposeful homogeneous sampling where the researcher intentionally selected individuals for investigating and understanding the central phenomenon. In this study, the participants were drawn from middle and secondary teachers and related service personnel employed by the Springfield City School District, Springfield, Ohio.;Data was collected in three phases. Phase one consisted of a questionnaire distributed district-wide to special educators and related health services personnel. Phase two consisted of focus groups, one with special educators and one with related health services personnel. Phase three data collection consisted of a final focus group combing both special educators and related health service personnel.;Findings were that special educators and related service personnel participating in this study agreed, in general, on the definition of interdisciplinary collaboration. Participants in this study mutually agreed on the definition of collaboration, they perceived a lack of support and understanding of collaboration on the part of administrators which they identified as a barrier. A third area of general agreement involved the constraints of time. Participants reported that finding the time to develop collaborations was a serious problem. A unique opportunity for improved collaboration when serving students with moderate and severe disabilities at the middle and high school levels was identified. Both special educators and related health services personnel identified transition to be an opportunity. Despite the existence of several barriers to the development and implementation of effective collaborations, the value of collaboration was recognized by participants

    Molecular Weight Dependence of Polymersome Membrane Elasticity and Stability

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    Vesicles prepared in water from a series of diblock copolymers and termed "polymersomes" are physically characterized. With increasing molecular weight Mˉn\bar{M}_n, the hydrophobic core thickness dd for the self-assembled bilayers of polyethyleneoxide - polybutadiene (PEO-PBD) increases up to 20 nmnm - considerably greater than any previously studied lipid system. The mechanical responses of these membranes, specifically, the area elastic modulus KaK_a and maximal areal strain αc\alpha_c are measured by micromanipulation. As expected for interface-dominated elasticity, KaK_a (≃\simeq 100 pN/nmpN/nm) is found to be independent of Mˉn\bar{M}_n. Related mean-field ideas also predict a limiting value for αc\alpha_c which is universal and about 10-fold above that typical of lipids. Experiments indeed show αc\alpha_c generally increases with Mˉn\bar{M}_n, coming close to the theoretical limit before stress relaxation is opposed by what might be chain entanglements at the highest Mˉn\bar{M}_n. The results highlight the interfacial limits of self-assemblies at the nano-scale.Comment: 16 pages, 5 figures, and 1 tabl

    Tomography of a High-Purity Narrowband Photon From a Transient Atomic Collective Excitation

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    We demonstrate the efficient heralded generation of high purity narrow-bandwidth single photons from a transient collective spin excitation in a hot atomic vapour cell. Employing optical homodyne tomography, we fully reconstruct the density matrix of the generated photon and observe a Wigner function reaching the zero value without correcting for any inefficiencies. The narrow bandwidth of the photon produced is accompanied by a high generation rate yielding a high spectral brightness. The source is therefore compatible with atomic-based quantum memories as well as other applications in light-atom interfacing. This work paves the way to preparing and measuring arbitrary superposition states of collective atomic excitations.Comment: Version 2: Fixed typo in bandwidth, Changed fig. 3 to png reduce file size, added 1 reference, expanded several explanation

    Conquering APA Style: Advice From APA Style Experts

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    Learning and teaching APA style is often a challenge because of the detailed rules for the writing style. Resources that provide accurate information about APA style that are easy for learners to consume can be useful tools for students and instructors. The goal of this article is to provide information to help writers become more competent and comfortable with APA style. The first section of this article contains lists of common APA style mistakes that are made when papers are submitted for publication. Editors look for very specific APA formatting and style, and this section will cover these issues. Moreover, the second section includes a list of APA style rules frequently encountered by an APA style tutor. The third section has information to help students navigate writing assignments in a research methods class. The fourth section addresses additional APA style rules that many writers do not know about. Finally, this information can serve as a guide for writers to use when writing APA style papers

    Comparison of mannitol and methacholine to predict exercise-induced bronchoconstriction and a clinical diagnosis of asthma

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    <p>Abstract</p> <p>Background</p> <p>Asthma can be difficult to diagnose, but bronchial provocation with methacholine, exercise or mannitol is helpful when used to identify bronchial hyperresponsiveness (BHR), a key feature of the disease. The utility of these tests in subjects with signs and symptoms of asthma but without a clear diagnosis has not been investigated. We investigated the sensitivity and specificity of mannitol to identify exercise-induced bronchoconstriction (EIB) as a manifestation of BHR; compared this with methacholine; and compared the sensitivity and specificity of mannitol and methacholine for a clinician diagnosis of asthma.</p> <p>Methods</p> <p>509 people (6–50 yr) were enrolled, 78% were atopic, median FEV<sub>1 </sub>92.5% predicted, and a low NAEPPII asthma score of 1.2. Subjects with symptoms of seasonal allergy were excluded. BHR to exercise was defined as a ≥ 10% fall in FEV<sub>1 </sub>on at least one of two tests, to methacholine a PC<sub>20 </sub>≤ 16 mg/ml and to mannitol a 15% fall in FEV<sub>1 </sub>at ≤ 635 mg or a 10% fall between doses. The clinician diagnosis of asthma was made on examination, history, skin tests, questionnaire and response to exercise but they were blind to the mannitol and methacholine results.</p> <p>Results</p> <p>Mannitol and methacholine were therapeutically equivalent to identify EIB, a clinician diagnosis of asthma, and prevalence of BHR. The sensitivity/specificity of mannitol to identify EIB was 59%/65% and for methacholine it was 56%/69%. The BHR was mild. Mean EIB % fall in FEV<sub>1 </sub>in subjects positive to exercise was 19%, (SD 9.2), mannitol PD<sub>15 </sub>158 (CI:129,193) mg, and methacholine PC<sub>20 </sub>2.1(CI:1.7, 2.6)mg/ml. The prevalence of BHR was the same: for exercise (43.5%), mannitol (44.8%), and methacholine (41.6%) with a test agreement between 62 & 69%. The sensitivity and specificity for a clinician diagnosis of asthma was 56%/73% for mannitol and 51%/75% for methacholine. The sensitivity increased to 73% and 72% for mannitol and methacholine when two exercise tests were positive.</p> <p>Conclusion</p> <p>In this group with normal FEV<sub>1</sub>, mild symptoms, and mild BHR, the sensitivity and specificity for both mannitol and methacholine to identify EIB and a clinician diagnosis of asthma were equivalent, but lower than previously documented in well-defined populations.</p> <p>Trial registration</p> <p>This was a multi-center trial comprising 25 sites across the United States of America. (NCT0025229).</p
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