Realist zemindeki ilk Türk romanı

Taha Toros Arşivi, Dosya No: 42-Halit Ziya Uşaklıgilİstanbul Kalkınma Ajansı (TR10/14/YEN/0033) İstanbul Development Agency (TR10/14/YEN/0033

Some Results on (σ,τ)-Lie Ideals

In this note we give some basic results on one sided(&#963;,&#964;)-Lie ideals of prime rings with characteristic not 2.</p

9-(4-Methoxy­phen­yl)-3,3,6,6-tetra­methyl-3,4,6,7-tetra­hydro-2H-xanthene-1,8(5H,9H)-dione

In the mol­ecule of the title compound, C24H28O4, the three six-membered rings of the xanthene system are not planar, having envelope, boat and envelope conformations. In the crystal structure, C—H⋯O hydrogen bonds link the mol­ecules, generating centrosymmetric R 2 2(12), R 4 4(28) and R 2 2(16) ring motifs and forming a three-dimensional network

The Effects of Superficial Musculoaponeurotic System Flap on the Development of Frey’s Syndrome and Cosmetic Outcomes After Superficial Parotidectomy

Objective:To investigate the outcomes of superficial musculoaponeurotic system (SMAS) flap and classic techniques in superficial parotidectomy in terms of Frey’s syndrome (FS) and cosmetic satisfaction.Methods:In this study, a retrospective chart review of patients that underwent superficial parotidectomy was performed. These patients were divided into two subgroups: group 1 included patients in which the SMAS flap was harvested and group 2 comprised the remaining patients on whom classic superficial parotidectomy was performed. All the patients were evaluated clinically and with Minor’s starch-iodine test for FS. For the evaluation of the cosmetic results, the patient’s satisfaction was queried according to the incision scar and surgical field skin retraction/facial symmetry. Both groups were compared in terms of complications and numbness of surgical area.Results:Fifty-five patients (31 male and 24 female) with a mean age of 50.19 years were included in the study. Thirty-two patients were in group 1 and 23 in group 2. Thirteen patients (23.7%) described as having FS and six of them were in group 1, while seven were in group 2. Minor’s starch-iodine test was positive in nine patients in group 1 (28.1%) and six patients in group 2 (26.1%) (p=1.000). With regard to cosmetic satisfaction, eight patients (25%) stated mild discomfort from the incision scar and two patients (6.3%) stated cosmetic dissatisfaction for facial asymmetry in group 1. In group 2 for the same factors the number of patients were 11 (47.8%) and 2 two (8.7%), respectively (p=0.027). There were no statistically significant differences in means of complication and numbness (p>0.05).Conclusion:According to our study results, there was no superiority between both the groups in terms of FS and incision scar satisfaction. We determined that there was a significant benefit of SMAS flap application in the prevention of volume loss and surgical area retraction

SYNTHESIS AND INVESTIGATION THE APPLICATIONS OF ACRIDINEDIONE TYPE ORGANIC LASER DYES

Bu çalışmada, spektroskopik cihazlarda ışın kaynağı olarak kullanılan lazer boyaların bir sınıfı olarak bilinen akridindion bileşikleri sentezlenmiştir. Çalışmanın ilk aşamasında; p-metoksibenzaldehit ve sikloheksan-1,3-dion, 5,5- dimetilsikloheksan-1,3-dion bileşikleri kullanılarak aldol kondensasyonu ve Michael katılmasını takip eden reaksiyonlar sonucu tetraketon bileşikleri sentezlendi. Elde edilen tetraketon bileşiklerinin, sübstitüe anilin bileşikleri ile olan reaksiyonundan yeni bir halka oluşumu ile sonuçlanan akridindion bileşikleri elde edildi. Sentezlenen bileşiklerin yapıları FTIR, 1H-NMR, 13CAPT NMR, kütle spektroskopisi, elementel analiz ve X-ışınları kırınım spektroskopisi teknikleri kullanılarak aydınlatıldı. Ayrıca sentezlenen akridindion bileşiklerinin UV-VIS, floresans ölçümleri ve lazer performansları ölçüldü. Bu bileşiklerin yüksek floresans ve lazer şiddet gösterdikleri gözlendi. Bazı bileşiklerin lazer emisyon bantlarının, çok şiddetli ve geniş ayarlanma aralığına sahip olduğu tespit edildi.In this study, acridinedione compounds that are known as a type of laser dyes used as a light source in spectroscopic systems were synthesised. In the first step of the study, tetraketone compounds were synthesised by using cyclohexane-1,3- dione, 5,5-dimethylcyclohexane-1,3-dione and 4-methoxybenzaldehyde following the aldol condensation and Micheal addition reaction. In the second step, obtained tetraketone compounds reacted with sübstitüted aniline compounds that were ended with a new cycle formation to yield acridinedione compounds. The structures of the synthesised compounds were elucidated by FTIR, 1H-NMR, 13C-APT NMR, mass spectroscopy, elemental analyzes and Xray diffraction spectroscopy techniques. In addition, UV-VIS, fluorescence and laser emission of the synthesised acridinedione compounds were measured. It was observed that these compounds had fluorescence and laser intensity. It was determined that some compounds had very strong emission bands and a wide tuning range