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OALib Journal期刊

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A Clinical Triad of Digital Clubbing, “Arthritis” and Ossifying Periostitis in a Man: Case Report  [PDF]
Chun-Ruh Ng, Yet-Lin Loh
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105101
Abstract:
A 49 year old gentleman presented with intermittent bilateral knee swelling for the past 37 years and was eventually diagnosed as primary hypertrophic osteoarthropathy after secondary forms were excluded. This case illustrates that the disease can present during childhood with an insidious onset and progressively become more severe and that is when medical attention is sought. Furthermore, the patient did not voluntarily report his skin changes as he considered the slow progressive changes as normal. We report a case of primary hypertrophic osteoarthropathy, its clinical presentation, imaging findings and therapeutic treatment. It is a rare differential diagnosis for chronic joint pain and swelling.
Self-Consistent-Field Study of the Alignment by an Electric Field of a Cylindrical Phase of Block Copolymer
Chin-Yet Lin,M. Schick
Physics , 2006, DOI: 10.1063/1.2214718
Abstract: Self-Consistent Field Theory is applied to a film of cylindrical-forming block copolymer subject to a surface field which tends to align the cylinders parallel to electrical plates, and to an external electric field tending to align them perpendicular to the plates. The Maxwell equations and self-consistent field equations are solved exactly, numerically, in real space. By comparing the free energies of different configurations, we show that for weak surface fields, the phase of cylinders parallel to the plates makes a direct transition to a phase in which the cylinders are aligned with the field throughout the sample. For stronger surface fields, there is an intermediate phase in which cylinders in the interior of the film, aligned with the field, terminate near the plates. For surface fields which favor the minority block, there is a boundary layer of hexagonal symmetry at the plates in which the monomers favored by the surface field occupy a larger area than they would if the cylinders extended to the surface.
Block Copolymers in Electric Fields: A Comparison of Single-Mode and Self-Consistent Field Approximations
Yoav Tsori,David Andelman,Chin-Yet Lin,M. Schick
Physics , 2005, DOI: 10.1021/ma051715v
Abstract: We compare two theoretical approaches to dielectric diblock copolymer melts in an external electric field. The first is a relatively simple analytic expansion in the relative copolymer concentration, and includes the full electrostatic contribution consistent with that expansion. It is valid close to the order-disorder transition point, the weak segregation limit. The second employs self-consistent field (SCF) theory and includes the full electrostatic contribution to the free energy at any copolymer segregation. It is more accurate but computationally more intensive. Motivated by recent experiments, we explore a section of the phase diagram in the three-dimensional parameter space of the block architecture, the interaction parameter and the external electric field. The relative stability of the lamellar, hexagonal and distorted body-centered-cubic (bcc) phases is compared within the two models. As function of an increasing electric field, the distorted bcc region in the phase diagram shrinks and disappears above a triple point, at which the lamellar, hexagonal and distorted bcc phases coexist. We examine the deformation of the bcc phase under the influence of the external field. While the elongation of the spheres is larger in the one-mode expansion than that predicted by the full SCF theory, the general features of the schemes are in satisfactory agreement. This indicates the general utility of the simple theory for exploratory calculations.
Structural changes of diblock copolymer melts due to an external electric field: a self-consistent field theory study
Chin-Yet Lin,Michael Schick,David Andelman
Physics , 2005, DOI: 10.1021/ma050408m
Abstract: We study the phase behavior of diblock copolymers in presence of an external electric field. We employ self-consistent field theory and treat the relevant Maxwell equation as an additional self-consistent equation. Because we do not treat the electric field perturbatively, we can examine its effects even when its magnitude is large. The electric field couples to the system's morphology only through the difference between the dielectric constants of the two blocks. We find that an external field aligns a body-centered cubic phase along the (111) direction, reducing its symmetry group to $R{\bar 3}m$. Transitions between this phase and the disordered or hexagonal phases can occur for external electric fields ranging from a minimum to a maximum value beyond which the $R{\bar 3m}$ phase disappears completely. This electric-field range depends on diblock architecture and temperature. We present several cuts through the phase diagram in the space of temperature, architecture and applied field, including one applicable to a system recently studied.
RUSLARIN TüRK TOPRAKLARI üZER NDE YAYILMASININ SEBEPLER üZER NE BAZI Dü üNCELER
Memet YET??G?N
Selcuk Universitesi Sosyal Bilimler Enstitusu Dergisi , 2006,
Abstract: Reasons for the Russian expansions in the Turkish lands had many political, economical,geopolitical, religious, cultural and military aspects. From Russian geography to Russian rulers,from Russian religious men to politicians, in every environment, something forced the Russiansto expand their lands against the Turkish lands. In this paper, the motifs that forced the Russiansto capture the Turkish lands and that historically helped the Russian expansions have beendiscussed. Geographic conditions, historical developments, greedy rulers, religious motifs, greatman and material sources and decreasing Turkish powers helped the Russians to capture largeTurkish lands starting in the mid-sixteenth century.
Osmanl mparatorlu u’nun Da lma D neminde Balkan Milliyet ili i ve Büyük Gü ler
Fahri YET?M
Selcuk Universitesi Sosyal Bilimler Enstitusu Dergisi , 2011,
Abstract: The dissolution of the Ottoman Empire is the result of various factors. Playing an essential role in world history, TheOttoman Empire is the last of the classical empires. But in line with the historical process of medernity, it was exposed to variousserious problems of change and tranformation in its late decades. Reduced to the status of a periphery of the capitalist Europe inthe 19th century, doubtless as a result of its exclusion from the early process of formation of the European capitalism, OttomanEmpire had to face new tensions. Additionally, great central powers of the age put pressure on the empire, which, eventually gaverise to political, economic and social problems. These developments allowed the non-muslim subjects of the empire to betterrecognize their identities, which, in the course of time, encouraged the separatist demands aimed at political freedom.The phenomenon of nation-state, one of the elementary components of modernity, has affected not only Europe but alsoother states outside Europe in the long run. And one of these states was the Ottoman Empire, who felt the impact of the changesassociated with the growth of nation-state deeply, as it was true for other euro-centric changes.One of the major problems of the Ottoman Empire of modernization period was the collapse of the millet system and andensuing increase of political consciousness and nationalistic movements. Gaining further momentum in the second half of the19th century, nationalistic movements witnessed the inclusion of the non-muslim subjects of the empire in the process of theformation of nation state on the one hand, and heralded the end of the age of “Pax-Ottomana” on the other hand. Havingmanaged to maintain the peace and stability for about five centuries in the Balkans, a region world-wide famous for its divergentethnic and cultural structure, the Ottoman Empire began to lose its previous mission in the region in modern times under theinfluence of nationalistic trends. The Ottoman state structure, based on the millet system, a view of a society organized ascongregational compartments according to religious sects, originally tracing back to the reign of Mehmed II (the Conqueror),began to deteriorate by the 19th century. This deterioration, further aggravated by the current socio-economic factors in additionto contemporary nationalistic ideas, began to be felt first among the Balkan nations. Differing substantially from the movementsof nationalism seen elsewhere, Balkan nationalism, with its unique peculiarities, adopted a more riotous and violent character andbegan to
LA HAUSSE DES INTERNAUTES EN TURQUIE : LE CAS DES ETUDIANTS DE FRAN AIS LANGUE ETRANGERE DE L’UNIVERSITE ANADOLU
Veda ASLIM-YET??
Journal of International Social Research , 2009,
Abstract: La hausse des usagers d’Internet en Turquie nous a conduits à nous demander si les étudiants de Fran ais Langue Etrangère (FLE) de l’Université Anadolu faisaient partie de ces utilisateurs. Dans cette optique, nous avons comparé deux groupes d’étudiants de FLE de la Faculté de Pédagogie de l’Université Anadolu. Le premier groupe était composé de 84 étudiants ayant répondu, en 2003, dans le cadre d’une thèse de ma trise, à un questionnaire portant sur leur usage d’Internet. En 2008, nous avons réadministré ce questionnaire à un autre groupe de 84 étudiants de FLE : Ce groupe y répondait pour la première fois. De cette manière, nous avons comparé les résultats obtenus par l’intermédiaire de ces deux groupes. Les données recueillies et analysées avec le programme statistique SPSS 15.0 nous montrent une différence dans les usages d’Internet entre les deux groupes : Les individus du groupe 2 s’avèrent être des utilisateurs réguliers, se connectant plus fréquemment à Internet, l’utilisant davantage que le premier groupe pour la communication, l’information, l’apprentissage et le FLE. Les étudiants FLE de la dernière génération sont de ces internautes dont le nombre a haussé spectaculairement en Turquie.
Listening and Speaking Skills in a Foreign Language: Working with Podcasts
Veda ASLIM YET??
Eski?ehir Osmangazi üniversitesi Sosyal Bilimler Dergisi , 2011,
Abstract: While foreign language learners fear spoken skills stating reasons such as they do not understand anything from what they listen to or they are afraid of making mistakes while speaking, their teachers try to find ways to prevent these negative feelings. Using podcasts is one of the ways the teachers use for this purpose. Aiming to introduce podcasting and to synthesize the ways of using the target language in spoken activities, this descriptive study first describes what podcasting is and it discusses the benefits and the ways of using them in education. Then, it demonstrates how podcasts are used in foreign language speaking and listening activities, and it provides some podcast examples of listening activities for learning French as a foreign language.
Change of Museum Experience In Goreme Open Air Museum Accordance with Individual Charecteristics
?brahim YILMAZ, ?ule ARDI? YET??
Journal of Multidisciplinary Academic Tourism , 2016, DOI: -
Abstract: Nowadays, for museum visitors, it is not enough to reveal the dimensions of functional services in order to differentiate visitors experience, it should contemporaneously reveal the dimensions of hedonic services. These differentiations expose visitors experiences. Experiential marketing is new concept and tourism sector is one of the most important service sector, which could be used by experiential marketing. Museums can be defined to aware people about past, to entertain in leisure time, to offer an escape from our time even in certain period of time, and it can also be defined to socialize with cover various aspects of aesthetic experience as the science and art institutions. In this study, the experiences of tourists who visit the Goreme Open Air Museum is comprised of the dimensions and which is intended to determine tendencies about the future behavior of the visitors. After trips to local and foreign visitors to the Goreme Open Air Museum is implemented within the scope of the study questionnaire. The obtained data is analyzed with SPSS. The results of the analysis of the participants and museum experiences will be revealed dimensions of this statement, and experience is discovered as a result of future behavior tendency. Consequently proposals to redound to visit museum is presented.
Aqua(1,10-phenanthroline-κ2N,N′)(dl-threoninato-κ2N,O1)copper(II) chloride dihydrate
Yi-Han Tan,Siang-Guan Teoh,Kei-Lin Sek,Wan-Sin Loh
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810015278
Abstract: The asymmetric unit of the title compound, [Cu(C4H8NO3)(C12H8N2)(H2O)]Cl·2H2O, contains a complex cation, a chloride anion and two water molecules. The CuII ion has a distorted square-pyramidal coordination geometry formed by one bidentate phenanthroline ligand, one O,N-bidentate dl-threoninate ligand and one apical water molecule. In the crystal structure, intermolecular O—H...O, N—H...O, N—H...Cl and O—H...Cl hydrogen bonds link the components into layers. A single weak intermolecular C—H...O interaction connects these layers into a three-dimensional network.
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