Fen Edebiyat Fakültesi / Faculty of Letters and Sciences
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Publication 1926 Bakü Türkoloji Kurultayı(2013) Türk, Vahit; 9466Publication 1940 Kuşağı Toplumcu Şairleri ve Halk Şiiri(2010) Çelik, Yakup; 7328Şiire Nazım Hikmet etkisiyle başlayan, toplumcu söylemi kullanan ve ilk edebi ürünlerini 1940’lı yıllarda veren şairler, edebiyatımızda 1940 Kuşağı Toplumcu Şairleri olarak anılırlar. Bu şairlerin eserlerinde toplum problemleri, savaş karşıtlığı, barış özlemi, işçilerin ezilmişliği, yoksulluk gibi temalar vardır. Bu temaların şiir olarak dile gelmesinde söyleyiş halk diline ait sözcüklerle, deyimlerle yapılmıştır. 1940 Kuşağı toplumcu şairlerinin tümünün halk şiirine veya söyleyişine yöneldiğini söylemek de oldukça zor. Ancak bu grup içerisinde anılan şairlerin büyük çoğunluğu halkın diline, zevkine, söyleyişine ve halk şiirine uygun bir edebiyat tarzını benimsemişlerdir. Nazım Hikmet’ten gelen serbest ölçülü şiiri kullanmış olan toplumcu şairlerin halk söyleyişlerine başvurmalarının temel nedeni ele aldıkları temalardır. Gelenekle modern olanı birleştirme gibi bir çaba söz konusu değildir. Yazımızda, 1940 Kuşağı Toplumcu şairlerinin eserlerinden hareketle bu yargıya gidilmiştir.Publication 2-Transitive Frobenius Q-Groups(2009) Erkoç, Temha; Güzel, Erhan; 123408; 2127A Q -group is a finite group all of whose irreducible complex characters are rationally- valued. In this paper, we find all 2-transitive Frobenius Q -groupsPublication Publication 28-Faruk Duman’ın “Av Dönüşleri” Hikâyesi Üzerine Bir Tahlil Denemesi(Yakup YILMAZ, 2022) SEVİNDİK, BERNAFaruk Duman, 1990’lı yıllardan beri Türk edebiyatında roman, hikâye, deneme türlerinde eserler veren bir yazardır. Postmodern sanat anlayışının etkili olduğu yıllarda ürün veren yazarın kendine has masalsı bir üslûbu vardır. Bugüne kadar yayımladığı eserleriyle; Orhan Kemal Öykü Ödülü’nde ikincilik (1998), Sait Faik Hikâye Ödülü (2000) , Haldun Taner Öykü Ödülü (2010), Orhan Kemal Roman Ödülü (2019) gibi birçok ödüle layık görülmüş, günümüzün en verimli yazarlarından biridir. Bu çalışmada yazarın 1999 yılında yayımladığı ikinci hikâye kitabı olan ve içinde altı hikâyesinin yer aldığı “Av Dönüşleri” kitabında bulunan “Av Dönüşleri” adlı hikâyesi tahlil edilecektir. Kitaptaki altı hikâyede birbiriyle ilişkili, sıralı bir olay örgüsü ve düzen söz konusu değildir. Yalnız tüm hikâyelerde doğa, orman ve bilhassa hayvanlar önemli bir yer tutar. Duman, bu kitaptaki hikâyelerinde olaydan ziyade insan zihninin karmaşasına yoğunlaşır. Söz konusu kitapta yer alan hikâyelerden, yazarın üslûbunu yansıtması ve kullandığı teknikleri göstermesi bakımından kitaba ismini veren hikâye “Av Dönüşleri” seçilmiştir. Çalışmanın giriş kısmında yazarın hayatı hakkında bilgi verilmiş, ald ığı ödüller ve diğer eserlerine değinilmiştir. Bu bölümden sonra “Av Dönüşleri”; konu, olay örgüsü, anlatıcı ve bakış açısı, zaman, mekân, şahıs kadrosu, dil ve anlatım teknikleri ve sonuç olmak üzere sekiz başlık altında incelenmiştir. Makalenin sonuç kısmında, bu tahlilden hareketle hikâye üzerine değerlendirmeler yapılmıştır.Publication 31. Kuruluş Yıldönümünde Milli Eğitim Vakfı(2012) Mertoğlu, Münevver; 165897Publication 4 4 Bipyridyl Vibrational Assignments and Force Field(Elsevier, 1995-04) Topaçlı, Arzu; AKYÜZ, SEVİM; 170067; 10127A normal coordinate analysis of 4,4′-bipyridyl (4,4′-bipy) is carried out to establish consistent vibrational assignment and to determine a Urey-Bradley force field. The potential energy distribution of 4,4′-bipy is calculated which has provided certainty for the assignments. Additional information is obtained from the vibrational spectra of M (4,4′-bipy)Cl2 complexes (where M = Zn, Cu or Cd) and calculated wave numbers of complexed 4,4′-bipy. Several vibrational modes of 4,4′-bipy in the IR and Raman spectra of the complexes are found to have upward shifts in frequency compared to those in the free molecule and the shifts are metal dependent. An explanation supported by the normal coordinate analysis is provided in terms of coupling with low frequency vibrations, particularly the M-N stretching frequencies.Publication 4-Hydroxyquinolin-2(1H)-One Isolated in Cryogenic Argon and Xenon Matrices: Tautomers and Photochemistry(Elsevier, 2024) Secrieru, A.; Lopes, S.; Nikitin, T.; Cristiano, Maria L. S.; FAUSTO, RUI4-Hydroxyquinolin-2(1H)-one (4HQ2O) was synthesized, isolated in cryogenic matrices (argon and xenon), and studied by infrared spectroscopy. Quantum chemical calculations carried out at the DFT(B3LYP)/6-311++G (3df,3pd) level of theory were used to determine the conformational and tautomeric properties of the molecule. Two tautomeric forms were identified in the as-deposited matrices with the help of the theoretical data. To investigate the photochemistry of the compound, in situ broadband ultraviolet (lambda > 283 nm) irradiation of the asdeposited argon matrix was performed. This irradiation led to the generation of an additional tautomer, together with the products of fragmentation of the heterocyclic ring of the molecule, specifically isocyanic acid and carbon monoxide. Photoproducts such as 1,3-dihydro-2H-indol-2-one and cyclohepta-1,2,4,6-tetraene were also observed in the photolyzed argon matrix. A comprehensive assignment of the infrared spectra of all the species observed experimentally is presented.Publication 4. Boyut ve Kübizm(2012-09-28) Güzel, Erhan; 2127Publication 41-Usûlî'nin Şiirlerinde Sevgili Portresi(Yakup YILMAZ, 2022) YALÇINKAYA, YAĞIZKlâsik Türk şiirinin estetik geleneği içinde oluşmuş aşk üçgeninin baş öğesi olan sevgili, yüzyıllarca şairlerin dilinden düşmemiştir. Yegâne olan sevgili, bu üçlemede âşık rolüne bürünen şairin şiirlerinde klâsik nazmın estetik değerleri içinde gâh ay gâh güneş olmuş; boyu selviye saçı sümbüle benzetilmiştir. O, eziyet ve cefaları ile vefadan habersiz, erişilmez bir tip olarak tasvir edilmiştir. Çok geniş bir coğrafyada ve çok uzun bir zaman diliminde var olmuş Klâsik Türk şiiri, kendi geleneği içerisinde idealize edilmiş bir sevgili tipi kurgulamıştır. 16. yüzyılda Vardar Yenicesi’nde yaşamış Usûlî, sevgiliyi dilinden düşürmeyen Klâsik dönem Türk şairlerinden biri olmuştur. Hayatında tasavvufun belirleyici yeri olan şair Klâsik Türk şiirinin estetik anlayışını tasavvufî dü şünceleriyle harmanladığı şiirleri ile klâsik edebiyat literatürüne önemli bir divanı miras bırakmıştır. Çalışmada, Usûlî Divanı’nda şairin edebî kişiliği ve şiir anlayışı çerçevesinde sevgili tipinin nasıl bir portre çizdiği üzerinde durulacaktır.Publication 5-Methylhydantoin: From isolated molecules in a low-temperature Aaon matrix to solid state polymorphs characterization(2017-12) Nogueira, Bernardo.A.; Canotilho J.; Eusébio MES; Henriques MSC; Paixão JA; Fausto R.; ILDIZ, GÜLCE ÖĞRÜÇThe molecular structure, vibrational spectra and photochemistry of 5-methylhydantoin (C4H6N2O2; 5-MH) were studied by matrix isolation infrared spectroscopy and theoretical calculations at the DFT(B3LYP)/6-311++G(d,p) theory level. The natural bond orbital (NBO) analysis approach was used to study in detail the electronic structure of the minimum energy structure of 5-MH, namely the specific characteristics of the σ and π electronic systems of the molecule and the stabilizing orbital interactions. UV irradiation of 5-MH isolated in argon matrix resulted in its photofragmentation through a single photochemical pathway, yielding isocyanic acid, ethanimine, and carbon monoxide, thus following a pattern already observed before for the parent hydantoin and 1-methylhydantoin molecules. The investigation of the thermal properties of 5-MH was undertaken by differential scanning calorimetry (DSC), polarized light thermal microscopy (PLTM) and Raman spectroscopy. Four different polymorphs of 5-MH were identified. The crystal structure of one of the polymorphs, for which it was possible to grow up suitable crystals, was determined by X-ray diffraction (XRD). Two of the additional polymorphs were characterized by powder XRD, which confirmed the molecules pack in different crystallographic arrangements.Publication 5-Methylhydantoin: from isolated molecules in a low-temperature argon matrix to solid state polymorphs characterization(Amer Chemical Soc, 1155 16th St, Nw, Washington, Dc 20036 USA, 2017-07-20) Nogueira, Bernardo A.; Canotilho, J.; Eusebio, M. E. S.; Henriques, M. S. C.; Paixao, J. A.; Fausto, Rui; ILDIZ, GÜLCE ÖĞRÜÇ; 107326The molecular structure, vibrational spectra and photochemistry of 5-methylhydantoin (C4H6N2O2; 5-MH) were studied by matrix isolation infrared spectroscopy and theoretical calculations at the DFT(B3LYP)/6-311++G(d,p) theory level. The natural bond orbital (NBO) analysis approach was used to study in detail the electronic structure of the minimum energy structure of 5-MH, namely the specific characteristics of the sigma and pi electronic systems of the molecule and the stabilizing orbital interactions. UV irradiation of 5-MH isolated in argon matrix resulted in its photofragmentation through a single photochemical pathway, yielding isocyanic acid, ethanimine, and carbon monoxide, thus following a pattern already observed before for the parent hydantoin and 1-methylhydantoin molecules. The investigation of the thermal properties of 5-MH was undertaken by differential scanning calorimetry (DSC), polarized light thermal microscopy (PLTM) and Raman spectroscopy. Four different polymorphs of 5-MH were identified. The crystal structure of one of the polymorphs, for which it was possible to grow up suitable crystals, was determined by X-ray diffraction (XRD). Two of the additional polymorphs were characterized by powder XRD, which confirmed the molecules pack in different crystallographic arrangements.Publication A Certain Class of Harmonic Mappings Related to Functions of Bounded Boundary Rotation(Eudoxus Press, Llc, 1424 Beaver Trail Drive, Cordova, Tn 38016 Usa, 2014-05) Yavuz Duman, Emel; Aydoğan, Melike; POLATOĞLU, YAŞAR; 199370; 111202; 35549Let V(k) be the class of functions with bounded boundary rotation and let S-H be the class of sense-preserving harmonic mappings. In the present paper we investigate a certain class of harmonic mappings related to the function of bounded boundary rotation.Publication A certain class of starlike log-harmonic mappings(Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2014-11) Aydoğan, Melike; POLATOĞLU, YAŞAR; 35549; 199370In this paper we investigate some properties of log-harmonic starlike mappings. For this aim we use the subordination principle or Lindelof Principle (Lewandowski (1961) [71). (C) 2014 Elsevier B.V. All rights reserved.Publication A Characterization for Convex Functions of Complex Order b(İstanbul University Science Faculty, 1997) POLATOĞLU, YAŞAR; 199370The main purpose of this note is tö give a new characterization for convex functions of complex order b. It should be noticed that by giving specific values to b we obtain new characterizations of important subclasses of convex functions of complex order b.Publication A combinatorial discussion on finite dimensional Leavitt path algebras(Hacettepe Univ, Fac Sci, Hacettepe Univ, Fac Sci, Beytepe, Ankara 06800, Turkey, 2014) Esin, Songül; Güloğlu, İsmail; Kanuni, Müge; KOÇ, AYTEN; 112205; 145213Any finite dimensional semisimple algebra A over a field K is isomorphic to a direct sum of finite dimensional full matrix rings over suitable division rings. We shall consider the direct sum of finite dimensional full matrix rings over a field K. All such finite dimensional semisimple algebras arise as finite dimensional Leavitt path algebras. For this specific finite dimensional semisimple algebra A over a field K, we define a uniquely determined specific graph - called a truncated tree associated with A - whose Leavitt path algebra is isomorphic to A. We define an algebraic invariant kappa(A) for A and count the number of isomorphism classes of Leavitt path algebras with the same fixed value of kappa(A). Moreover, we find the maximum and the minimum K-dimensions of the Leavitt path algebras. of possible trees with a given number of vertices and we also determine the number of distinct Leavitt path algebras of line graphs with a given number of vertices.Publication A comparative study of auditory and visual event related coherences(Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2012-09) Tülay, Elif; Turp Gölbaşı, Bilge; Güntekin, Bahar; BAŞAR, EROL; 142226; 204666Publication A comparative study of the yellow dent and purple flint maize kernel components by Raman spectroscopy and chemometrics(2019-05-15) Kabuk, Hayrunnisa Nur; Kaplan, Ekin Su; Halimoğlu, Gökhan; Fausto, Rui; ILDIZ, GÜLCE ÖĞRÜÇIn this investigation the potential of micro-Raman spectroscopy, coupled to a simple, standard chemometric method (principal component analysis, PCA), as a fast, cheap, field method to investigate maize kernel components (endosperm, germ and peel) is demonstrated. Particular emphasis was given to the determination of the relative protein and amylose/amylopectin contents in maize endosperm of yellow dent and purple flint corn species, the two major maize varieties produced in Turkey. It is shown that the studied yellow dent corn type has a comparatively larger content of protein (3.4%) and a higher amylopectin/amylose ratio in the endosperm than the studied purple flint variety (a 11% decrease of amylopectin was found in going from the studied yellow dent to the purple flint corn), while the germs of the two species differ mostly by the presence of a slightly larger amount of starch in the case of the yellow dent corn, the oil composition of both species being identical within the resolution of the used method of analysis. The spectra of the maize peels reveal essentially the presence of cellulose and lignin in similar amounts in the two types of corn. (C) 2019 Elsevier B.V. All rights reserved.Publication A Conformational Analysis and Vibrational Spectroscopic Investigation on 1,2-bis(o-carboxyphenoxy) Ethane Molecule(Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2012-01) Balcı, Kubilay; Yapar, Gönül; Akkaya, Yasemin; Koch, A.; Kleinpeter, E.; AKYÜZ, SEVİM; 54889; 119404; 175409; 10127The minima on the potential energy surface of 1,2-bis(o-carboxyphenoxy)ethane (CPE) molecule in its electronic ground state were searched by a molecular dynamics simulation performed with MM2 force field. For each of the found minimum-energy conformers, the corresponding equilibrium geometry, charge distribution, HOMO-LUMO energy gap, force field, vibrational normal modes and associated IR and Raman spectral data were determined by means of the density functional theory (DFT) based electronic structure calculations carried out by using B3LYP method and various Pople-style basis sets. The obtained theoretical data confirmed the significant effects of the intra- and inter-molecular hydrogen bonding interactions on the conformational structure, force field, and group vibrations of the molecule. The same data have also revealed that two of the determined stable conformers, both of which exhibit pseudo-crown structure, are considerably more favorable in energy to the others and accordingly provide the major contribution to the experimental spectra of CPE. In the light of the improved vibrational spectral data obtained within the "SQM FF" methodology and "Dual Scale Factors" approach for the monomer and dimer forms of these two conformers, a reliable assignment of the fundamental bands observed in the experimental room-temperature IR and Raman spectra of the molecule was given, and the sensitivities of its group vibrations to conformation, substitution and dimerization were discussed. (C) 2011 Elsevier B.V. All rightsPublication A Fourier-transform infrared and laser-Raman spectroscopic investigation of 4,4′-bipyridyl-transition metal(II) tetracyanonickelate clathrates(1996-03) Davies, J. Eric D.; AKYÜZ, SEVİM; AKYÜZ, ZEKİ TANIL; 10127The FT-IR and Raman spectra are reported of M(4,4-bipyridyl)Ni(CN)4nG (where M = Mn, Fe, Co, Cu or Zn and G = benzene or aniline;n = 0–2) clathrates. The host structure consists of a three-dimensional rigid lattice formed by infinite polymeric layers of {M-Ni(CN)4} and 4,4-bipyridyl bridges between the metal (M) atoms of the adjacent polymeric layers. Bidentate 4,4-bipyridyl molecules are found to be centrosymmetric in the structure.