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Evaluatıon of rare maxıllary sınus pneumatızatıons wıth cbct and ıts relatıonshıp wıth pathology
No full textÖZ
Amaç: Bu çalışmanın amacı, Konik Işınlı Bilgisayarlı Tomografi (KIBT) ile
maksiller sinüs pönomatizasyonlarının değerlendirilmesi ve pnömatizasyonlarının sinüs patolojileri ile ilişkilendirilmesidir.
Gereç ve Yöntem: Maksiller sinüs pnömatizasyonlarını; frontal proses
pnömatizasyonları, zigomatik proses pnömatizasyonları, palatal proses
pnömatizasyonları, orbital proses pnömatizasyonları, palatinalden sfenomaksiller plakaya pnömatizasyonlar diş kaybının neden olduğu pnömatizasyonlar ve alveolar kemiğe pnömatizasyon olarak sıralayabiliriz. Bu
çalışmada İstanbul Üniversitesi Diş Hekimliği Fakültesi Ağız Diş Çene
Radyolojisi Anabilim Dalında 2015-2017 yılları arasında alınan, maksiller
sinüsün görüntüleme alanına girdiği KIBT görüntüleri incelenmiştir.
Scanora 3Dx marka KIBT cihazı (Scanora® 3Dx, Soredex, Tuusula, Finland)
ile alınan görüntüler, OnDemand 3D™ (Cybermed, California, USA) adlı
yazılım ile incelenmiştir. Retrospektif olarak değerlendirilen görüntüler
uygun istatistiksel analize tabi tutulmuştur.
Bulgular: Çalışmamız, mukozal kalınlaşma, polipoidal mukozal kalınlaşma,
parsiyel opasifikasyon, total opasifikasyon ve efüzyon gibi bazı patolojilerin maksiller sinüs pnömatizasyonlarına bağlı olduğunu ortaya çıkarmıştır.
İstatiksel olarak en çok karşılaşılan alveolar kemik pnömatizasyonlarında
mukozal kalınlaşmadır (%36,5 sağda ve %38 solda).
Alveolar kemik pnömatizasyonu, palatal proses pnömatizasyonu ve zigomatik kemik pnömatizasyonu’nun mukozal kalınlaşmalar ile arasında istatiksel olarak anlamlı farklılıklar bulunmuştur (p<0,05). Ayrıca sol tarafta
alveolar kemik pnömatizasyonu ile total opasifikasyon arasında anlamlı
ilişki bulunmuştur (p=0,001).
Sonuç: Maksiller sinüs ile ilgili pnömatizasyonlarını görüntülemede en
uygun görüntüleme yöntemi KIBT’ tır. Cerrahi operasyonlar sırasında ve
sonrasında oluşabilecek komplikasyonları önlemek amacıyla maksiller
sinüs pnömatizasyonlarının bilinmesi diş hekimliği açısından büyük önem
arz etmektedir.
Bizim çalışmamız; nadir görülen maksiller sinüs pnömatizasyonlarını
tanımlamak ve bu pnömatizayonların patoloji ile ilişkisi açıklamak amacıyla diş hekimliği literatürüne önemli katkı sağlayacaktır.ABSTRACT
Objective: This study aims to evaluate maxillary sinus pneumatizations
with Cone-beam Computed Tomography (CBCT) and correlate sinus
pneumatizations with pathology.
Material and Method: Maxillary sinus pneumatization can be listed as
frontal process pneumatization (FPP), zygomatic process pneumatization
(ZPP), nasal cavity pneumatizations (NCP), palatal process pneumatizations
(PPP), orbital process pneumatization (OPP), palatal pneumatization to
sphenomaxillary plate (SPP), pneumatization caused by tooth loss, and
alveolar bone pneumatization (ABP).
Istanbul University Faculty of Dentistry Department of Oral and
Maxillofacial Radiology Volumetric Tomography images of patients
entering the image region of the maxillary sinus were examined between
December 2015 and December 2017 in this study.
The images were examined with the software called OnDemand 3D™
(Cybermed, California, USA). CBCT device is Scanora 3Dx brand CBCT
(Scanora® 3Dx, Soredex, Tuusula, Finland). It was subjected to appropriate
statistical analysis retrospectively using CBCT images.
Results: Our study has revealed that some pathologies such as mucosal
thickening, polypoidal mucosal thickening, partial opacification, total
opacification, and effusion are due to maxillary sinus pneumatization.
Statistically significant differences were found between ABP, PPP, and ZPP
with mucosal thickenings (p<0.05).
Mucosal thickening is the most common which is seen with alveolar bone
pneumatization statistically (36.5% on the right, 38% on the left).
In addition, a significant correlation was found between ABP and total
opacification on the left side (p=0.001).
Conclusion: CBCT is the most appropriate imaging method for imaging the
pneumatization of the maxillary sinus. Knowing maxillary sinus
pneumatizations is of great importance in terms of dentistry in order to
prevent complications that may occur during and after surgical operations.
Our study will make an important contribution to the dentistry literature
in order to define rare maxillary sinus pneumatizations and to explain the
relationship of these pneumatizations with patholog
Investigation of optical soliton solutions of higher-order nonlinear Schrödinger equation having Kudryashov nonlinear refractive index
No full textAbstract
Purpose: In this paper, optical solitons of higher-order nonlinear Schrödinger equation with Kudryashov's sextic power-law of nonlinear refractive index are investigated via the direct mapping method. The considered model identifies the optical soliton pulse propagation in the optical fibers. Deriving the optical solutions of investigated model such as sextic power is critical but difficult work. The primary aim of this paper is to graphically examine the impact of power-law nonlinearity (pLawNL) and chromatic dispersion (CD) parameters clarifying self-phase modulation (SPM) in the equation on soliton behavior as well as obtaining optical soliton solutions. Methodology: To according to the used technique, we first used the complex wave transform to generate the nonlinear ordinary differential equation (NLODE) form of the nonlinear Schrödinger equation (NLSE) with Kudryashov's sextic power-law the nonlinear refractive index (SPLawNRI). Then, we were able to produce a system of linear equations in polynomial form by using the approach. Different solution sets including the values of the parameters of the studied equation and the suggested approach were produced by solving the linear system of equations. Findings: We acquired the optical soliton solutions of the main equation after inserting the sets and wave transformation into the solution functions suggested by the approach. The constraint conditions for the related solutions were suggested. We proved that the gained solutions satisfied the NLSE with Kudryashov's SPLawNRI under the suggested constraint conditions. Originality: We present contour, 3D and 2D depictions in various simulations in figures to comment the obtained solution functions. Besides, we investigate the effects of the power-law nonlinearity parameter that expresses SPM in the main equation and the parameter that are the group velocity dispersion (GVD) or chromatic dispersion (CD) on soliton behavior. The results suggest that the utilized approach is efficient, reliable, and powerful to be readily applied to various NLSEs with higher-order or higher pLawNLs that characterize real-life problems
Noether symmetries and isometries of the area-minimizing Lagrangian on vacuum classes of pp-waves
Get PDFAbstract In this paper, we provide the Noether symmetries with gauge fields of the area-minimizing hypersurface Lagrangian according to some vacuum classes of pp-waves. Also we show that they are elements of the Killing algebra of vacuum classes of pp-waves. Finally, we construct the conserved fields for the area-minimizing Lagrangian according to Noether’s theorem
Quiescent Optical Solitons with Quadratic-Cubic and Generalized Quadratic-Cubic Nonlinearities
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This paper studies the formulation of dark and singular stationary optical solitons that stem from quadratic-cubic and generalized quadratic-cubic forms of nonlinear refractive index coupled with nonlinear chromatic dispersion. The temporal evolution is taken to be of both kinds, namely linear and generalized. The enhanced Kudryashov’s approach enables this retrieval possible
Acute Disseminated Encephalomyelitis Following Completion of Pneumococcal Meningitis Treatment: A Case Report and Review of the Literature
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Acute disseminated encephalomyelitis (ADEM) is an immune-mediated inflammatory disease of the central nervous system (CNS) and is commonly seen in children. It has seasonal peaks in winter and spring, consistent with its infectious etiologies, and it rarely occurs as a reaction to vaccination. ADEM is less common in adults and progresses with a more severe clinical course. Cases diagnosed with ADEM by CNS demyelination after streptococcal meningitis have rarely been reported in adult patients. In this report, we present a rare case of a 31-year-old female diagnosed with ADEM following pneumococcal meningitis treatment and treated successfully with low-dose methylprednisolone.Öz
Akut dissemine ensefalomiyelit (ADEM), merkezi sinir sistemini etkileyen immün sistem ilişkili enflamatuvar bir hastalık olup sıklıkla çocuklarda
görülür. Enfeksiyöz etiyolojiler ile ilişkili olması sebebiyle sonbahar ve kış dönemlerinde mevsimsel pik yapmakta olup nadiren aşılara karşı bir
reaksiyon olarak da görülmektedir. Akut dissemine ensefalomiyelit erişkinlerde daha nadir görülmekte ve daha ağır bir klinik tabloya sebep olmaktadır.
Erişkin hastalarda nadiren streptokoksik menenjit sonrası merkezi sinir sistemi demiyelinizasyonu ile ADEM tanısı konulan olgular bildirilmiştir. Bu
yazıda pnömokokal menenjit tedavisini takiben ADEM tanısı alan ve düşük doz metilprednizolon ile başarılı bir şekilde tedavi edilen 31 yaşında bir
kadın olgu sunulmuştur
Bright soliton structure of Perturbed Schrödinger-Hirota equation with cubic-quintic-septic law of self-phase modulation
No full textAbstract: This study aims to peruse the optical soliton solutions of the perturbed Schrödinger-Hirota equation with cubic-quintic-septic law of self-phase modulation via the generalized Kudryashov scheme. Additionally, we analyze the impact of model parameters for the derived soliton solutions. 3D, Contour, and 2D graphs for the generated solutions are successfully indicated by selecting suitable values of parameters
Examining the relationship between social anxiety and self-actualization needs in university students
No full textÖzet
Bu araştırmada, üniversite öğrencilerinde sosyal kaygı ile kendini
gerçekleştirme ihtiyacı arasındaki ilişkinin incelenmesi amaçlanmaktadır. Araştırma
ilişkisel tarama modelindedir. Araştırmanınörneklemini Türkiye’de önlisans, lisans
ve lisansüstü öğrenim görmekte olan 401 öğrenci oluşturmaktadır. Araştırmanın
verileri Kişisel Bilgi Formu, Liebowitz Sosyal Kaygı Ölçeği (LSKÖ) ve Kendini
Gerçekleştirme Kısa Indeksi (SAI) ile toplanmıştır. Cinsiyete, öğrenim gördüğü
üniversite, öğrenim gördüğü sınıf, eğitim düzeyi, üniversite puan türüne göre sosyal
kaygı ve kendini gerçekleştirme puanları karşılaştırıldığında gruplar arasında
anlamlıbir farklılık olmadığı bulunmuştur. Gelir düzeyine, sınav kaygısı yaşamaya,
toplulukta kaygı yaşamaya, grup çalışmalarına katılmaya, akademik başarı
düşüncesine, çalışma durumuna, iletişim düzeyine göresosyal kaygı ve kendini
gerçekleştirme arasında ise anlamlı farklılık vardır. Sosyal kaygı ve kendini
gerçekleştirme arasında negatif yönde orta düzey bir korelasyon vardır. Sosyal kaygı
ölçeğinden alınan her 1 birimlik artışın kendini gerçekleştirmede 1.015 birimlik
azalmaya neden olduğu bulunmuştur. Sosyal kaygının öğrencilerin kendini
gerçekleştirmelerinin önünde bir engel olduğu ve gelir düzeyi, sınav kaygısı, grup
çalışmalarına katılım, akademik başarı, bir işte çalışıp - çalışmama, sosyal etkileşim
azlığı gibi çeşitli faktörlerden etkilendiği görülmektedirAbstract
In this research, it is aimed to examine the relationship between social anxiety and
self-actualization production in universities. The research is in relational screening
model. The sample of the research consists of 401 students who are undergoing
associate, undergraduate, and postgraduate studies in Turkey. The data of the study
were collected with the Personal Information Form, the Liebowitz Social Anxiety
Scale (LSAS) and the Self-Realization Short Index (SAI). There was no significant
difference between the opposite groups in terms of social anxiety and selfactualization scores according to gender, class you see at university, education level,
and university score type. There is a significant difference between social anxiety
income and self-actualization according to budget, test anxiety, anxiety in the
community, joining the group, academic success, work-oriented, communication
level. There is a moderate, negative distribution between social anxiety and selfactualization. Every 1-unit increase in social anxiety performance resulted in a 1.015-
unit decrease in self-actualization. It is seen that social anxiety is an obstacle in front
of its development and is affected by various factors such as income level, test
anxiety, participation in a group, academic success, continuity in a job - not working,
and lack of social activity
Computer-aided drug design
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Computer-Aided Drug Design tools are now an indispensable part of drug discovery that have made key contributions to the development of drugs. In this editorial, I briefly provide an overview of CADD emphasizing its potential and invite authors from academia and the pharmaceutical and biotechnology sector to present their research in this collection
Etiopathogenesis and symptoms in TMJ muscle-pain dysfunction syndrome
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Aim In this study, the importance of knowing the pathological conditions and symptoms that may lead to TMJ muscle joint pain dysfunction syndrome in terms of diagnosis and treatment was emphasized in the light of the literature. Material and method A total of 70 patients, 52 women and 18 men, aged between 19 and 37, were included in the study. Results Etiological causes and predisposing factors that may lead to TMJ muscle-pain dysfunction syndrome were investigated by considering the classifications in the literature. Malocclusion was detected in 41 (58.5%) of 70 patients, while 22 patients (31.4%) received psychological treatment. Conclusion In conclusion, it is emphasized that the variations in clinical images and the pathogenesis should be taken into account in determining the treatment and plan of TMJ muscle pain dysfunction syndrome. In addition, due to the lack of specific standardized measurement techniques for this syndrome, it is difficult to easily understand the outcome of each cause alone. Since diagnosis constitutes a very important step in the treatment of diseases, the importance of detailed anamnesis, clinical and radiological examination is emphasized in our stud
Optical solitons of the perturbed nonlinear Schr?dinger equation using Lie symmetry method
No full textAbstract
This paper presents an analytical treatment of the perturbed nonlinear Schrödinger equation
(P-NLSE) using the Lie symmetry method. The NLSE is a fundamental equation in nonlinear
optics and describes the propagation of optical pulses in a nonlinear medium. In the presence
of perturbations, the solution to the NLSE becomes more complicated and requires more
sophisticated mathematical techniques to analyze. The Lie symmetry method is a powerful tool
for finding exact solutions to nonlinear differential equations and has been applied successfully
to a wide range of problems in physics and engineering. In this paper, we use the Lie symmetry
method to obtain exact analytical solutions for the P-NLSE and study their properties. Our results
show that the perturbations can have a significant effect on the behavior of the optical pulses,
leading to phenomena such as soliton fission and dispersive shock waves. The Lie symmetry
method is used to derive three generators for the Lie algebra, and two reductions are examined
through combinations of vector generators. The Improved generalized Riccati equation and
Nucci reduction method are then employed to obtain exact solutions, including bright soliton,
multiple singular soliton, and exponential solutions