462 research outputs found
Teaching philosophies revalued:beyond personal development to academic and institutional capacity building
This research investigates the value of teaching philosophies (TP) for todayâs academics and their institutions. It offers a new framework to enhance academic development, personal resilience, and institutional capacity building. Since the 1990s, TPs have been formalised as personally constructed and reflectively written statements of educational values, beliefs, and practices. Whereas within universities, TPs have been institutionalised for academic performance reviews, awards, and promotions. In-depth personal interviews on TPs and their value on personal journeys and institutional experiences were conducted with academics from Australia and Canada. The findings highlight the value and future potential of TPs beyond a formulaic role
Continuity of heavy Rydberg behaviour in the ungerade ion-pair states of H 2
Heavy Rydberg behaviour and absolute quantum defects are reported for resonances in the ungerade manifold of H2 above the (1s, 3l) dissociation limit. The continuity of the vibrational progression of the B\u27\u27B-bar state through the crossing with the 3p asymptote is demonstrated and a predominantly diabatic picture of the vibrational motion emerges, indicating that the ion-pair resonances possess little 61ÎŁu+ state character
Predictors of survival in malignant tumors of the sternum
AbstractFrom 1930 to 1994, 54 patients with primary malignant tumors of the sternum were seen. Fifty patients were first seen with a mass, and one half of them also had pain in the sternal region. Two patients had no symptoms at presentation. Among 39 solid tumors were 26 chondrosarcomas, 10 osteosarcomas, 1 fibrosarcoma, 1 angiosarcoma, and 1 malignant fibrous histiocytoma. Of these, 25 were low-grade and 14 were high-grade tumors. Among 15 small cell tumors were 8 plasmacytomas, 6 malignant lymphomas, and 1 Ewing's sarcoma. Partial or subtotal sternectomy was done in 37 patients and total sternectomy in 3. Of the remaining 14 patients, 3 had local excision; 10 had external radiation or chemotherapy without operation, or both; and 1 had no treatment. All but one patient treated by wide resection ( N = 40) had some form of skeletal reconstruction of the chest wall defect. Thirty-one (78%) underwent repair with Marlex mesh, and in 25 this was combined with methyl methacrylate. The skin edges were closed per primum in 32 patients; 8 required muscle, omentum, or skin flaps. Resection in chondrosarcomas yielded a 5-year survival (Kaplan-Meier) of 80% (median follow-up, 17 years). The 5-year survival in osteosarcomas was 14%. Resection was curative in 64% of low-grade sarcomas but in only 7% of high-grade sarcomas. In small cell tumors, resection and radiation were helpful for local control; all failures were a result of distant metastases. We conclude that primary sarcomas of the sternum though uncommon are potentially curable by wide surgical excision. With rigid prostheses to repair the skeletal defects, the surgical complication rates are low. Overall survival after complete surgical resection is related to tumor histologic type and grade. (J THORAC CARDIOVASC SURG 1996;111:96-106
Sleep abnormalities in the synaptopathiesâSYNGAP1-related intellectual disability and PhelanâMcDermid syndrome
Neurodevelopmental disorders are frequently associated with sleep disturbances. One class of neurodevelopmental disorders, the genetic synaptopathies, is caused by mutations in genes encoding proteins found at the synapse. Mutations in these genes cause derangement of synapse development and function. We utilized a validated sleep instrument, Childrenâs Sleep Habits Questionnaire (CSHQ) to examine the nature of sleep abnormalities occurring in individuals with two synaptopathiesâPhelanâMcDermid syndrome (PMD) (N = 47, male = 23, female = 24, age 1â46 years) and SYNGAP1-related intellectual disability (SYNGAP1-ID) (N = 64, male = 31, female = 33, age 1â64 years), when compared with unaffected siblings (N = 61, male = 25, female = 36, age 1â17 years). We found that both PMD and SYNGAP1-ID have significant sleep abnormalities with SYNGAP1-ID having greater severity of sleep disturbance than PMD. In addition, sleep disturbances were more severe for PMD in individuals 11 years and older compared with those less than 11 years old. Individuals with either disorder were more likely to use sleep aids than unaffected siblings. In conclusion, sleep disturbances are a significant phenotype in the synaptopathies PMD and SYNGAP1-ID. Improved sleep is a viable endpoint for future clinical trials for these neurodevelopmental disorders
Victim Precipitation: some fresh evidence on nonverbally mediated perceptions of vulnerability.
Challenging the obesity paradox: Extreme obesity and COPD mortality in the SUMMIT Trial
Populations with COPD demonstrate higher survival in overweight and obese compared with normal weight; the âobesity paradoxâ. Relationships in less-severe COPD are unclear, as is the impact of cardiovascular risk, and few studies include individuals at extremes of obesity. âWe examined the relationship between body mass index (BMI; defined as underweight: 40â
kg·mâ2, suggesting that obesity may not remain protective at the extremes in this population
Optical reflectivity of spin-coated multilayered ZnO and Al:ZnO Thin Films
Controlling growth, doping, crystallization, thickness of thin films of thin film transistor (TFT) channel materials is required in order to improve and control physical properties, primarily electronic conductivity and optical transparency. With the advent of flexible electronics and curved TFT-based display panels, low cost, solution-processed methods are important and provide scalable coating methods on a range of substrates. This work demonstrates the changes to the morphology, crystalline structure, optical reflectivity and electrical conductance of solution-processed ZnO thin films by the inclusion of an aluminium dopant during spin-coating. The measurements also determine the compositional chemical state of the Al:ZnO structures compared to ZnO using X-ray photoelectron spectroscopy in conjunction with detailed X-ray diffraction and transmission electron microscopy examination of the film morphology
Long term (5 Year) safety of bronchial thermoplasty: Asthma Intervention Research (AIR) trial
<b>Background:</b>
Bronchial thermoplasty (BT) is a bronchoscopic procedure that improves asthma control by reducing excess airway smooth muscle. Treated patients have been followed out to 5 years to evaluate long-term safety of this procedure.
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<b>Methods:</b>
Patients enrolled in the Asthma Intervention Research Trial were on inhaled corticosteroids â„200 ÎŒg beclomethasone or equivalent + long-acting-beta2-agonists and demonstrated worsening of asthma on long-acting-ÎČ2-agonist withdrawal. Following initial evaluation at 1 year, subjects were invited to participate in a 4 year safety study. Adverse events (AEs) and spirometry data were used to assess long-term safety out to 5 years post-BT.
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<b>Results:</b>
45 of 52 treated and 24 of 49 control group subjects participated in long-term follow-up of 5 years and 3 years respectively. The rate of respiratory adverse events (AEs/subject) was stable in years 2 to 5 following BT (1.2, 1.3, 1.2, and 1.1, respectively,). There was no increase in hospitalizations or emergency room visits for respiratory symptoms in Years 2, 3, 4, and 5 compared to Year 1. The FVC and FEV1 values showed no deterioration over the 5 year period in the BT group. Similar results were obtained for the Control group.
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<b>Conclusions:</b>
The absence of clinical complications (based on AE reporting) and the maintenance of stable lung function (no deterioration of FVC and FEV1) over a 5-year period post-BT in this group of patients with moderate to severe asthma support the long-term safety of the procedure out to 5 years
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