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Öğe Childhood chronic pleural empyema(Georg Thieme Verlag, 1998) Soysal, Ö; Topçu, S; Tastepe, I; Kaya, S; Çetin, GBackground: Surgical treatment may be necessary in childhood chronic pleural empyema. Methods: Over a 21-year period 642 children with pleural empyema were hospitalized and 104 of them underwent surgical treatment. The records of the children who underwent surgery for the treatment of empyema were retrospectively reviewed to describe the role, indications, and results of surgical treatment of childhood chronic pleural empyema. Results: Etiologic diseases or conditions leading to empyema were pneumonia in 69 patients, tuberculosis in 13, hydatid cyst in eight, postpneumonectomy empyema in five, and other causes in nine patients. Indications for surgery were severe pleural thickening in 54 cases (51.9%), trapped lung in 36 cases (34.6%), loculated empyema in eight cases (7.7%) and bronchopleural fistula in six cases (5.8%). Operations performed were decortication in 90 patients, pulmonary resection and decortication in seven, muscle flap closure in five, and pneumonectomy in two. Success rates in the treatment of nonspecific and tuberculous empyema were 93% and 54%, respectively. Conclusions: Surgical treatment is still necessary in childhood pleural empyema in developing countries, and success rates are very high in nonspecific pleural empyema and acceptable in tuberculous pleural empyema.Öğe Measurement of the confidence, attitudes, and self-image of Turkish student-teachers in relation to chemistry education(Taylor & Francis Ltd, 1996) Altun, EH; Kaya, SInstruments were used to measure the confidence, attitudes, and self-image of 34 final year initial student teachers in Turkey in relation to chemistry education. Nineteen items were used to measure the students' level of confidence in teaching chemistry. Two main concepts, 'chemistry as a high school subject' and 'chemistry in modern society' were used to elicit attitudes towards chemistry. Three concepts 'myself teaching chemistry', 'myself learning chemistry' and 'my ideal teacher' - were used to explore their self-image of teaching and learning chemistry. The study revealed that there are high correlations between measures reflecting 'self-image of learning chemistry' and 'self-image of teaching chemistry'.Öğe Optimisation of microwave digestion for determination of Fe, Zn, Mn and Cu in various legumes by flame atomic absorption spectrometry(Wiley, 2006) Erdogan, S; Erdemoglu, SB; Kaya, SFe, Zn, Mn and Cu levels in three Turkish legumes, kidney bean (Phaseolus vulgaris L.), lentil (Lens esculenta) and chickpea (Cicer avietinum), were determined by flame atomic absorption spectrometry. Dissolution conditions in the microwave-assisted wet digestion method were studied by investigating several variables, including type of acid mixture, acid volume, digestion time, microwave power input and sample weight. Comparison with conventional wet acid digestion was also made. In order to check the element losses during digestion and the accuracy of the results, all tests were repeated after the addition of a spiked standard element solution to the legume sample. The microwave-assisted digestion procedure optimised for kidney bean was adapted for lentil and chickpea. Fe, Zn, Mn and Cu concentrations (mg per 100 g sample) were determined in kidney bean as 6.27 +/- 0.94, 2.23 +/- 0.36,1.64 +/- 0.14 and 0.99 +/- 0.19, in lentil as 8.24 +/- 1.11, 2.46 +/- 0.06, 1.17 +/- 0.19 and 1.01 +/- 0.28 and in chickpea as 6.00 +/- 1.40, 2.21 +/- 0.14, 1.60 +/- 0.43 and 0.58 +/- 0.18 respectively. (c) 2005 Society of Chemical Industry.Öğe Pleurectomy/decortication for palliation in malignant pleural mesothelioma: Results of surgery(Elsevier Science Bv, 1997) Soysal, O; Karaoglanoglu, N; Demircan, S; Topcu, S; Tastepe, I; Kaya, S; Unlu, MObjective: Surgery can only offer palliation in an attempt to slow the progression of malignant pleural mesothelioma (MPM), We want to assess the effectiveness and safety of pleurectomy/decortication in establishing a tissue diagnosis, and controlling pleural fluid accumulation and symptoms in patients with MPM. Methods: We reviewed our pleurectomy results in 100 patients with MPM over a 19 year period. Major symptoms were chest pain, cough and dyspnea, and radiographic findings included pleural mass, pleural fluid and constriction of involved hemithorax. Results: Approximately two thirds of the patients underwent underwent subtotal (44%) or total pleurectomy (56%). The surgical mortality rate was 1% (1/100) and the morbidity rate was 22%. Morbidity included prolonged air leak (n = 12), empyema (n = 6), reaccumulation of pleural fluid (n = 2) and wound infection (n = 2). Palliative results included dyspnea and cough relief in all patients, chest pain relief in 60 (85%) and pleural fluid control in 52 (96%) patients. Median survival was 17 months in MPM patients. Conclusions: We conclude that pleurectomy/decortication safely provides both tissue diagnosis and effective control of pleural effusion and symptoms and therefore excellent palliation in patients with MPM. (C) 1997 Elsevier Science B.V.
