Yazar "Dogan, Ali" seçeneğine göre listele

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  • Küçük Resim
    Öğe
    Idarubicin Versus Daunorubicin Versus Mitoxantrone for Induction Chemotherapy in Acute Myeloid Leukemia: Patient Registration Study of Turkish Society of HematologyAcute Myeloid Leukemia Working Group
    (Amer Soc Hematology, 2023) Pinar, Ibrahim Ethem; Celik, Serhat; Polat, Merve Gokcen; Karatas, Aylin Fatma; Dogan, Ali; Iltar, Utku; Seval, Guldane Cengiz
    [Abstract Not Available]
  • [ N/A ]
    Öğe
    Investigation of the effect of shell plan-form dimensions on mode-shapes of the laminated composite cylindrical shallow shells using SDSST and FEM
    (Techno-Press, 2012) Dogan, Ali; Arslan, H. Murat
    This paper presents the mode-shape analysis of the cross-ply laminated composite cylindrical shallow shells. First, the kinematic relations of strains and deformation are given. Then, using Hamilton's principle, governing differential equations are developed for a general curved shell. Finally, the stress-strain relation for the laminated, cross-ply composite shells are obtained. By using some simplifications and assuming Fourier series as a displacement field, the governed differential equations are solved by the matrix algebra for shallow shells. Employing the computer algebra system called MATHEMATICA; a computer program has been prepared for the solution. The results obtained by this solution are compared with the results obtained by (ANSYS and SAP2000) programs, in order to verify the accuracy and reliability of the solution presented.
  • Küçük Resim
    Öğe
    Relationship between elastic properties of the aorta and uric acid levels in newly diagnosed hypertensive patients
    (Turkish Soc Cardiology, 2006) Gur, Mustafa; Yilmaz, Remzi; Demirbag, Recep; Seyfeli, Ergun; Ozdogru, Ibrahim; Altiparmak, Ibrahim Halil; Dogan, Ali
    Objectives: The association between elastic properties of the aorta and uric acid levels was investigated in patients with newly diagnosed hypertension. Study design: The study included 109 patients (68 females, 41 males; mean age 51.6+/-6.9 years) with newly diagnosed hypertension. Echocardiographic examination was performed. Systolic and diastolic diameters were measured by M-mode echocardiography, and elastic indices (aortic strain and distensibility) were calculated. Pulse pressure was obtained by a sphygmomanometer. Blood samples were obtained to determine serum uric acid levels and other biochemical parameters. The results were compared with those of a control group consisting of 21 age-and sex-matched healthy volunteers. Results: Compared to the control group, aortic strain and distensibility were significantly lower (p<0.001) and uric acid levels were significantly higher (p=0.044) in hypertensive patients. In multivariate regression analysis, aortic strain and distensibility showed independent relationships with uric acid levels (p=0.010 and p=0.009, respectively), age (p=0.001 and p<0.001), and left ventricular mass index (p=0.002 and p<0.001) in the patient group. Multivariate analysis according to gender showed that aortic strain and distensibility were in independent relationship with uric acid levels, age, and left ventricular mass index only in female patients. Conclusion: These data support the view that increased uric acid levels may have a role in the pathogenesis of impaired elastic properties of the aorta especially in hypertensive women.