Clear Cell Meningioma: A Rare Great Mimicker

Introduction: Clear cell meningioma is an infrequent, agressive variant of meningioma that shows proclivity to the spine. This study aimed to report a case of clear cell meningioma of the lumbar spine and discuss the differential diagnosis, and emphasize the necessity and usefulness of immunohistochemistry for definite diagnosis.Case report: A 23-year-old man admitted to the Department of Neurosurgery with backache existed for about 4 years. Magnetic Resonance Imaging revealed a well-circumscribed intradural and extramedullary mass in the spinal canal at the 5th lumbar vertebra extending to the right neural foramen. The lesion was excised gross totally and diagnosed as “clear cell meningioma”. The patient has been doing well for a year without any sign of recurrence.Discussion: Clear cell meningioma should be considered in the differential diagnosis of the masses located in the spine radiologically. In addition, the histopathological mimickers of it that are composed of clear cells, particularly renal cell carcinoma, should be ruled out by the aid of immunohistochemistry

Advances in the Assessment of Climate Change Impact on the Forest Landscape

Changing climates threaten the habitats and ecosystems at variable extents throughout the world. Forests are unique habitats and ecosystems that are vulnerable by the consequences of climate change. The climate change causes disturbances, alterations. and shifting on the forests that can be diagnosed at the tree and stand scales, as well as can be monitored and analyzed at the landscape scale. Furthermore, some recent researches concentrate on conveying the forest tree and stand-level shifting and disturbances to the forest landscape level by upscaling. In this study, the climate change impacts on the forest landscapes; principally, the disturbances including the drought-induced mortality, growth and productivity failures, and insect outbreaks are evaluated. Secondarily, climate change-induced alterations of the forest species distributions and forest landscape compositions, dynamics of the forest biodiversity, and tree migrations are discussed by focusing particularly on the relatively recent advances involving the modeling procedures. Ultimately, monitoring the climate change-driven shifting phenology of the forest landscape through the remote sensing techniques is referred in this study. Moreover, the study examples dependent upon the climate-ecological modeling and satellite data assessment of the forest landscapes throughout the world are also referenced. The landscape-scale assessment of the climate change impacts on the forest ecosystems provides integrated and comprehensive approach toward the proposal of sustainable mitigations and solutions to the phenomenon

The effect of interior aesthetics on the purchase intention

Günümüzde hizmet işletmelerinde ve tüketici davranışlarında hızlı değişimler yaşanmaktadır. Bu değişim sonucunda özellikle hizmet işletmelerinin rakip firmalara karşı varlıklarını devam ettirebilmeleri müşterilere rahat ve mutlu hissedecekleri bir iç mekân tasarlamakla mümkün olabileceği düşünülmektedir. Bu çalışmanın başlıca amacı, iç mekân estetiği ile satın alma niyeti arasındaki ilişkinin incelenmesidir. Bu amaç doğrultusunda kapsamlı bir literatür taraması yapılmıştır. Rize ilinde faaliyet gösteren bir kafenin 390 müşterisinden elde edilen anket verileri analiz edilmiştir. Elde edilen veriler ile tanımlayıcı istatistikler, güvenirlik analizleri, açıklayıcı ve doğrulayıcı faktör analizleri yapılmıştır. İç mekân estetik unsurlarından müzik, koku ve malzemenin satın alma niyeti üzerinde etkili olduğu belirlenmiştir.Today, there are rapid changes in service businesses and consumer behavior. As a result of this change, it is thought that it is possible for the service enterprises to maintain their existence against the competing firms by designing an interior where customers will feel comfortable and happy. The main purpose of this study is to examine the relationship between interior aesthetics and purchase intention. For this purpose, a comprehensive literature review was conducted. The survey data obtained from 390 customers of a café operating in Rize were analyzed. Descriptive statistics, reliability analyses, difference tests, explanatory and confirmatory factor analyses were performed with the obtained data. It is determined that music, fragrance and material, which are among the aesthetic elements of the interior, have an effect on the purchase intention

Eğitim Örgütlerinde Örgüt Kültürü Ve Öğretmen Liderliği: Lider-Üye Etkileşiminin Aracılık Rolü

Bu çalışmanın amacı, öğretmen algıları doğrultusunda; ilkokul ve ortaokullardaki örgüt kültürü ile lider-üye etkileşim düzeylerinin öğretmen liderliği sürecini etkilediği şeklinde oluşturulan teorik çerçevenin yapısal eşitlik modeli kapsamında test edilmesidir. Çalışmada, örgüt kültürü ve lider-üye etkileşimi bağımsız değişken, öğretmen liderliği bağımlı değişken olarak ele alınmıştır. Araştırmanın örneklemi, 2014-2015 eğitim-öğretim yılında Gaziantep ili Şahinbey ilçesinde bulunan ilk ve ortaokullarda görev yapan 502 öğretmenden oluşmaktadır. Araştırmada veriler, Glaser, Zamanou ve Hacker (1987) tarafından geliştirilen “Örgüt Kültürü Ölçeği”, Beycioğlu (2009) tarafından geliştirilen “Öğretmen Liderliği Ölçeği” Liden ve Maslyn (1998) tarafından geliştirilen “Lider-Üye Etkileşimi Ölçeği” ile toplanmıştır. Verilerin analizinde yapısal eşitlik modeli analizi ile birlikte, regresyon ve korelasyon analizleri kullanılmıştır. Araştırmada elde edilen bulgular: Örgüt kültürü ile öğretmen liderliği ve lider-üye etkileşimi arasında yüksek düzeyde; lider-üye etkileşimi ile öğretmen liderliği arasında orta düzeyde, pozitif ve anlamlı bir ilişki bulunmaktadır. Örgüt kültürü hem öğretmen liderliğinin hem de lider-üye etkileşiminin anlamlı bir yordayıcısıdır. Öğretmenlerin lider-üye etkileşimi algılarının örgüt kültürü ve öğretmen liderliği arasındaki ilişkide kısmi ara yordayıcı olduğu saptanmıştır. Okul müdürlerinin okullarında öğretmen liderliğini teşvik eden ve destekleyen bir okul kültürü oluşturmaları, ilişkiye yönelik bir liderlik tarzını benimsemeleri öğretmen liderliğinin ortaya çıkmasına ve gelişimine katkı sağlaması açısından önemli görülmektedir

Meyerson Phenomenon as a Component of Melanoma in situ

No abstract available</p

Meyerson Phenomenon as a Component of Melanoma in situ

No abstract available</p

Pigmented Bowen’s Disease of the Genitalia Masquerading as Malignant Melanoma

Abstract Pigmented Bowen’s disease is a rare subtype of in situ squamous cell carcinoma of the skin and mucosa, with a potential risk of invasion and metastasis. It is universally accepted that human papillomavirus (HPV) is the cause of genital Bowen’s disease. Herein we report an unusual case of pigmented Bowen’s disease of the genital area that clinically simulated malignant melanoma. Accurate diagnosis could only be established after histological examination. Polymerase chain reaction (PCR) analysis showed that the lesion harbored HPV 16 DNA. Although pigmented Bowen’s disease is rare, it should be considered in the differential diagnosis of all pigmented lesions of the genitalia. This case report highlights the necessity of biopsy and histopathological examination for every suspicious cutaneous lesion.  Key words: pigmented Bowen’s disease; human papillomavirus </p

The Effect of Axis Values on Electrocardiography in Prediction of Congenital Heart Diseases in Children without a Known History of Heart Disease

Aim: In this study,the predictive value of electrocardiography(ECG) axis measurements at diagnosis of congenital heart diseases(CHD) were evaluated in children.Materials and Methods: The children between 1 month and 16 years of age without a known history of CHD who applied to pediatric cardiology outpatient clinic were included in the study.Pathology at physical examination,P,QRS,T axis and QRS-T angle values and the diagnosis of a CHD at echocardiography were evaluated.Results were evaluated statistically.Results: Two hundred and sixty cases were evaluated during the study period.Median age was 24 months(1-160months).The 45% of the patients were evaluated as normal at cardiovascular system examination.Murmur was present in 40% of the patients and other pathologic findings additionally to the murmur were found in another 15% of the patients.ECG evaluations revealed abnormal P axis in 5 patients,left axis deviation in 23 patients,right axis deviation in 29 patients, superior axis in 3 patients,abnormal T axis in 18 patients and pathologic QRS-T angle in 32 patients.Echocardiographic stuies revealed CHD at 68 patients.The pathology at physical examination did not effect the ECG axis values and the abnormal changes at QRS-T angle(p>0.05)but signicantly increasing the frequency of CHD diagnosis at echocardiography(p<0.05).The presence of CHD was not found different in terms of P,QRS and T axis.Congenital heart disease was found significantly higher in patients especially with left axis deviation,QRS-T angle pathology and abnormal T axis(p<0.05).Conclusion: Children with pathological auscultation findings at the cardiovascular system examination, left axis deviation or pathological QRS-T angle at ECG should be evaluated by transthoracic echocardiography

How Classroom Assessment Affects Science and Mathematics Achievement?:Findings from TIMSS 2015

In this study, it is aimed to examine the effect of classroom assessment on science and mathematics achievements. For this purpose, hierarchi-cal linear modeling (HLM) is performed using variables of like learning science/maths, engage teaching in science/maths, confidence in science/maths, and home resources for learning variables at the student level, and experience, education level, homework, and assessment at the teacher level. The sample of the study consists of 4th grade students who participated in TIMSS 2015 in Turkey. According to the findings; 36% of variance in science achievement, and 40% of variance in mathematics achievement are due to variability between classes. In a random coef-ficient model, all student variables were found to be statistically significant predictors of science and mathematics achievement. Among these variables, the greatest effect size is self-confidence variability. Only the teacher variables are added according to the Means as the outcome model; the teacher’s experience and emphasis to national achievement tests of monitoring students’ progress had a statistically significant effect on science and mathematics achievement. Finally, according to the intercept and slopes of the outcomes model, the most important variable is the emphasis to national achievement tests of monitoring students’ progress in both science and mathematics