Re-assigning (1x2) reconstruction of rutile TiO_2(110) from DFT+U calculations

Physically reasonable electronic structures of reconstructed rutile TiO_2(110)-(1x2) surfaces were studied using density functional theory (DFT) supplemented with Hubbard U on-site Coulomb repulsion acting on the d electrons, so called as the DFT+U approach. Two leading reconstruction models proposed by Onishi--Iwasawa and Park et al. were compared in terms of their thermodynamic stabilities.Comment: 4 pages, 4 figures, 2 table

Examining “Eclektic”, “Kitch” “Neoclasic” and “Orientalist” architectural production methods on university structures

Postmodern architectural products that can be described as kitsch have become rapidly consumed objects because they have appealed to the whole society. As a demand stimulating, easily comprehensible, and rapidly consumable product, kitsch has gained an important place in postmodern culture and architecture. These features of kitsch have easily made it a paradoxical part of consumption culture. After the Neoclassical boom in the 18th century, architectural movements such as Eclecticism, Orientalism, and Historicism became widespread in the 19th century. Towards the end of the 20th century, these tendencies came to the fore again within the Postmodern paradigm, and new kitsch architectural structures have begun to be produced in these undertakings in accordance with the spirit of the period. Eclecticism which has become prominent again in postmodern architecture has been referred to as neo-eclecticism or eclectic populism and has been defined as a style that ‘complexity, uncertainty and contradictions’ are expressed, ‘references from history and symbolic elements are used. Together with various historical forms in the postmodern period, orientalist images have been also used. Images consisting of stylized views of the Western culture on the Orient and that are not based on an authentic eastern depiction have been used in the production of orientalist architectural form. In recent years, eclectic, kitsch, orientalist, neoclassical forms that are independent of context and time have been frequently encountered in architectural applications in also Turkey. On one hand, elements from Turkish culture have been used and on the other hand, architectural elements from foreign cultures have been preferred. It is seen that there have been contradictions between form and meaning in educational structures built in Turkey during the period that the paradigms of the Postmodern era have been dominant. In this study, it is aimed to read and analyze the concepts of kitsch, eclecticism, neoclassicism, orientalism in the postmodern paradigm on recent university buildings and campus portals. In line with this purpose, an extensive literature research was conducted within the scope of the study; in the case study, recent university buildings and portals were analyzed in terms of postmodernism, the historical periods and architectural elements they derived were determined

The effect of different irrigation levels on the oleuropein contents of olive tree (Olea europaea L. cv. Memecik) in the western coastal region of Turkey

In this study, the effect of different irrigation levels on oleuropein content of olive (Olea europaea L. cv. Memecik) was researched in the Aegean Region during the crop season of 2007. Six different irrigation water levels of drip irrigation were tested using class A pan evaporation technique [I0 (kpc:0), I0.25 (kpc:0.25), I0.50 (kpc:0.50), I0.75 (kpc:0.75), I1.00 (kpc:1.00) and I1.25 (kpc:1.25)]. Oleuropein contents of olive leaves were detected by high performance liquid chromatography (HPLC). Olive leaves showed considerable contents of oleuropein (16.25 ± 0.25%) collected from waterless regime applied trees during summer period. In the same regime, contents of oleuropein were decreased depending upon the increasing irrigation regimes: 0.25 (10.28 ± 0.13%); 0.50 (2.19 ± 0.12%); 0.75 (1.43 ± 0.03%); 1.00 (0.09 ± 0.05%), although in winter period, contents of oleuropein were approximately stable as 0.55 ± 0.01% in waterless regime (rain-fed olives), equal in 0.25 (0.25 ± 0.04%) and 0.50 (0.25 ± 0.01%), in 0.75 (0.21 ± 0.01%), 1.00 (0.16 ± 0.02%) and (0.14 ± 0.03%) in 1.25 irrigation regimes. Contents of oleuropein was observed to be increased inversely proportional with increased irrigation regimes in autumn period. The oleuropein values were 1.21 ± 0.01% in waterless, 0.76 ± 0.01% in 0.25 irrigation, 0.45 ± 0.03% in 0.50 irrigation, 0.44 ± 0.03% in 0.75 irrigation, 0.33 ± 0.01% in 1.00 irrigation and 0.25 ± 0.02% in 1.25 irrigation regimes. No important increase or decrease between contents of oleuropein depending upon the gradually increased irrigation regimes was observe in spring period [in waterless regime (0.51 ± 0.05%), 0.25 irrigation (0.39 ± 0.04%); 0.50 irrigation (0.38 ± 0.14%); 0.75 irrigation (0.11 ± 0.01%); 1.00 irrigation (0.55 ± 0.04%); and 1.25 irrigation (0.79 ± 0.06%)]. Statistically important increases in oleuropein contents were in inverse proportion with the exponential irrigation regimes.Key words: Olea europaea L., olive leaves, oleuropein, irrigation, seasonal variation

Türkiye'de yabancıların saglık hizmetlerine erisimi üzerine kapsamlı bir çalısma: Kısıtlar ve fırsatların araştırılması

Bu araştırma, Türkiye’de bulunuş nedenleri üzerinden grupladığı yabancıların sağlık hizmetlerine erişim süreçlerini incelemiştir. Son yıllarda yapılan araştırmalar, Türkiye’ye yönelen yabancıların sayısında ciddi bir artış olduğunu ortaya koymaktadır. Ülkede bulunan yabancılar oldukça heterojen bir yapı arz etmektedirler ve sağlık hizmetlerine erişim Türkiye’de bulundukları süre içinde en temel ihtiyaçlarından biri olarak karşımıza çıkmaktadır. Türkiye’deki yabancıların sağlık hizmetlerine erişimleri konusuna, çok az sayıda araştırma, yabancıların yasal statüleri (düzenli/düzensiz olmaları) ve/veya sağlık sigortaları çerçevesinde çok dar bir bakış açısı ile değinmektedir. Sağlık Bakanlığı’nın 2011 yılında oluşturduğu ‘uluslararası hasta’ kavramsallaştırması karmaşa sebep olmakta, sağlık turizmi için Türkiye’de bulunan sağlık turistlerini ve ülkede tatillerini geçirirken tedavi olan turistleri kapsamaktadır. Bu tanımın dışında kalan yabancı uyruklu hastalar takip edilmemekte, bu hastaların sağlık hizmetlerine erişim süreçleri hakkında bilgi toplanmamaktadır. Türkiye’deki yabancıları, Türkiye’de bulunuş nedenleri ve göç süreçlerinin üzerinden altı başlık altında (öğrenciler, emekliler, gelin ve damatlar, düzenli çalışanlar, düzensiz göçmenler ve sığınmacılar) toplayan bu keşfedici araştırmanın kapsamı, oldukça heterojen bir yapı arz eden Türkiye’deki yabancıların sağlık hizmetlerine erişim süreçlerinde tabi oldukları farklı yasal prosedürlerin bütüncül bir şekilde araştırılarak ortaya konmasını, bu süreçlerde karşılaştıkları ana problemlerin belirlenmesini, Türkiye’de var olan ‘uluslararası hasta’ kavramsallaştırmasının tartışılmasını, sağlık sisteminin yabancılarla ilgili kültürel anlayış ve kodlarını ortaya çıkarılmasını ve bütün bunların sonucunda yabancılara sağlık hizmeti sunumunda kısıtların ve fırsatların tartışılmasını içermektedir. Araştırma nitel yöntemlerden faydalanmış, veriler 149 yetişkin birey ile yaklaşık 1,5 saat süren yüz yüze yapılacak derinlemesine görüşmelerden elde edilmiştir. Kartopu örnekleme tekniği ile seçilen katılımcılardan, Türkiye’de bulunan yabancı grupları ve bu yabancı gruplara sağlık hizmeti sağlayanları temsil edecek şekilde amaçlı örneklem oluşturulmuştur. Ayrıca Sağlık Bakanlığı’nda ilgili uzmanlarla görüşmeler yapılmıştır. Toplanan veriler MAXQDA nitel veri analizi programı ile kodlanarak analiz edilmiştir.This study categorized foreigners according to their reasons of stay in Turkey and examined their access to health services in the country. Recent studies reveal that there is a serious increase in the number of foreign visitors / migrants in Turkey. The foreigners’ community in the country is highly heterogeneous and their access to health services is one of their basic needs during their stay. Yet, foreigners’ access to health services in Turkey is an underresearched issue. Except a few studies, which examine it within a very narrow framework such as foreigners’/migrants’ legal statuses in the country (whether they are regular or irregular) or their social insurances, studies have not focused on this issue. In addition, Ministry of Health’s “international patient” conceptualization, which was introduced in 2011, is confusing as it seems to include only medical tourists and tourists, who need treatment during their stay in the country. Foreign patients who are not covered by this definition are not monitored and information about their access to health services is not collected. The scope of this exploratory research, which categorizes foreigners /migrants into six groups according to the reasons of their stay in the country (students, retirees, brides and grooms, regular workers, irregular migrants and asylum seekers), includes the examination of foreigners’ access to health services in the country. The study examined different legal procedures that apply to the foreign patients; revealed the main problems they face during their access to health services, discussed the concept of 'international patient' in Turkey and tried to understand the cultural codes about foreigners in the health system. As a result of all of these discussions, it aimed to present a thorough discussion on the constraints and opportunities in the provision of health care services to foreigners in Turkey. The research employed qualitative research methods, the data were collected through 1,5 hour face-to-face in-depth interviews with 149 participants. The participants were selected via snowball sampling procedure, which enabled the study to build a purposive sample to represent the foreign/migrant groups and health service providers to these groups in the country. In addition, interviews with relevant experts within the Ministry of Health were conducted. The data were analyzed by the MAXQDA qualitative data analysis software

Composición en ácidos grasos y colesterol de los lípidos de yema de huevo enriquecida mediante modificación de la dieta de gallinas con aceite de pescado y linaza

The effects of fish oil and flaxseed in the diets of laying hens on the cholesterol and fatty acid composition of egg lipids were studied. Isa-White laying hens and five experimental diets were used. The first diet was used as the control. Fish oil (1.5%), flaxseed (4.32% and 8.64) or both of them (1.5% fish oil and 4.32% flaxseed) were added to the others and hens were fed for 30 and 60 days. The cholesterol and fatty acid composition of the yolks were determined. No significant difference (pSe han estudiado los efectos producidos por la presencia de aceite de pescado y linaza, en la dieta de gallinas ponedoras, sobre la composición en colesterol y ácidos grasos de los lípidos del huevo. Se han utilizado gallinas ponedoras Isa-White y cinco tipos de dietas experimentales. La primera dieta fue usada como control. Se añadió aceite de pescado (1.5%), linaza (4.32% y 8.64) o ambos (1.5% aceite de pescado y 4.32% linaza) a las otras dietas y se alimentó a las gallinas durante 30 y 60 días, determinándose la composición en colesterol y ácidos grasos de las yemas. No se encontró diferencia significativa (

Treatment uptake levels among the coronary heart disease patients at the university hospital

AMAÇ: Amaç bir üniversite hastanesinde koroner kalp hastalığı olan 35 yaş ve üzeri kişilerdeki risk etmenlerinin, uygulanan tedavi düzeylerinin belirlenmesidir. YÖNTEMLER: Tanımlayıcı tipteki araştırma Dokuz Eylül Üniversitesi Hastanesi'nde yapılmıştır. Geriye dönük taranan kayıtlara göre DEÜ Hastanesi'nde 1 Ocak- 31 Aralık 2008'de KKH ve koroner bypass tanılı hastalar çalışmanın olgularını oluşturmuştur. Toplam 392 hastaya ulaşılmıştır. Değişkenler başvuru öncesi hastalık ve risk öyküsü, ilaç kullanımı, hastanede uygulanan girişimler, taburcu olurken reçete edilen ilaçlardır. Veri sıklık dağılımları ve yüzdeler biçiminde sunulmuştur. BULGULAR: Hastaların üçte birinde diyabet, hiperlipidemi ya da sigara riski, %65.6'sında hipertansiyon bulunmaktadır. Anjinalı olguların %86.2'sine, akut MI'lıların %85.4'üne anjiyografi, anjinalı hastaların %30.9'una, akut MI'lıların %54.4'üne anjiyoplasti, anjinalıların %13.8'ine, akut MI'lıların %11.1'ine by-pass cerrahisi yapılmıştır. Hastaneden çıkışta anjinalı hastaların %68.8'ine beta bloker, %79.6'sına statin, %28.0'ına ACE inhibitörü, %88.2'sine aspirin; MI'lı hastaların %84.1'ine beta bloker, %89.7'sine statin, %60.7'sine ACE inhibitörü, %95.3'üne aspirin reçete edilmiştir. Kalp yetmezliğinde ilaçların reçete edilme oranları beta blokerde %54.0, statinde %39.7, ACE inhibitöründe %42.9, aspirinde %71.4'tür. SONUÇ: İlaçların reçete edilme oranları düşüktür. Toplumda KKH mortalitesinin azaltılmasında etkili tedavilerin reçete edilmesi ve kullanımı önemlidir. OBJECTIVE: Aim of the study was to determine the treatment uptake levels and risk factors among the coronary heart disease patients over 35 years old at the university hospital. METHODS: This descriptive study was conducted in the Dokuz Eylul University Hospital. Patients diagnosed with Coronary Heart Disease or coronary by-pass graphy between 1 January-31 December 2008 in DEU Hospital formed the study group based on the hospital records which was screened retrospectively. In total 392 patients files were screened. Variables used in the survey were; information about morbidity, risk factors and use of medications, procedures applied during hospitalization and the medications at discharge. Data were presented as frequencies and percentages. RESULTS: One third of the patients presented risk of diabetes, hyperlipidemia or smoking and 65.6% had hypertension. 86.2% of the patients with angina and 85.4% of acute MI patients had angiography procedure, 29.8% of angina patients and 54.4% of MI patients had angioplasty; 13.8% of angina patients and 11.1% of AMI patients had by-pass surgery. Prescribed medications at discharge among the angina patients were 68.8% for beta blocker, 79.6% Statin, 28.0% ACE inhibitor, 88.2% aspirin. Beta blockers were prescribed to 84.1%, Statin to 89.7%, ACE inhibitor to 60.7%, Aspirin to 95.3% of the AMI patients. Beta blocker was prescribed to 54.0%, statin to 39.7%, ACE inhibitor to 60.7%, Aspirin to 71.4% of the heart failure patients. CONCLUSION: The treatment uptake levels for most of the CHD groups at the hospital discharge are low. It is important to provide effective medications to all eligible CHD patients to reduce CHD mortality in the community

Determination of a monumental Quercus coccifera tree in Gökçeada

Ağaç-insan ilişkisinde önemli bir yere sahip olan anıt ağaçlar, ağaca duyulan hayranlık ve sevginin önemli simgelerindendir. Quercus coccifera L. (dikenli pırnal, kermes meşesi) gibi genellikle çalı formundaki bireylerle temsil edilen ağaçlar içerisinde ileri çap ve boylara ulaşmış olanlar son derece nadirdir. Türkiye’de bugüne kadar 9 anıt ağaç önerisi yapılan dikenli pırnal ağacının anıtsal boyutlara ulaşmış bir bireyi de Gökçeada’da bulunmuştur. Makalenin amacı bu ağacın anıtsal değerini saptayarak anıt ağaç olarak tescil edilmesi için bilimsel altlık oluşturmaktır. Gövde çapı (1.30 m’deki) 106 cm ve boyu da 12,5 m olan söz konusu dikenli pırnal ağacının ŞAD (Şimdiki Anıtsal Değeri) > MADtür değeri (Minimum Anıtsal Değeri) 69 > 44 olarak belirlenmiştir. Arazide bir şapelin yanında bulunan ağaç, bu dini tesisin bir parçası konumundadır. O nedenle, hem boyutsal hem de folklorik yönüyle anıt ağaç olarak tescil edilmesi uygun olacaktır.Monumental trees, which have an important place in the tree-human relationship, are important symbols of admiration and love for the tree. Trees such as Quercus coccifera L. (Kermes oak), which are generally represented by individuals in the form of bushes, are extremely rare. In Turkey, an individual has reached monumental dimensions of the nine so far detected Kermes oak tree was also found in Gökçeada. The purpose of the paper is to establish a scientific base for the monumental value of this tree to be registered as a monumental tree. The Kermes oak tree, whose trunk diameter (at 1.30 m) is 106 cm and its length is 12,5 m, has been determined as ŞAD (Current Monumental Value)> Item Value (Minimum Monumental Value) 69> 44. This tree with a chapel in the field is part of this religious facility. Therefore, it would be appropriate to register it as a monumental tree in terms of both dimensional and folkloric aspects

Explant Culture of Ovarian Tissue

INTRODUCTION: In this study, it was aimed to isolate, reproduce and characterize stromal cells migrating from tissues by creating ovarian tissue explant culture. It is also aimed to create a mixed cell culture (ovarian stromal stem cells and ovarian surface epithelium) with the tissues obtained from different parts of the ovary and to examine the interactions of the cells with each other. METHODS: Explant cultures were formed from ovarian tissues of 4 week old (prepubertal) two female Wistar Albino type rats. Then, the expression of CD29, CD54, CD90 (mesenchymal stem cell surface antigen) and CD45 (hematopoietic stem cell surface antigen) was investigated by performing flow cytometry analysis on proliferating ovarian stromal cells in the 2nd passage (P2). RESULTS: The proliferation abilities and morphological characteristics of the cells in the culture medium were examined by serial passaging. In flow cytometry analysis of isolated ovarian stromal cells, it was determined that they expressed CD54, CD90 and CD45 surface antigens, but did not express CD29 surface antigens. DISCUSSION AND CONCLUSION: In the analysis, we determined that the ovarian stromal cells we isolated and produced in the culture medium expressed hematopoietic and some mesenchymal stem cell markers

A comparison of clinical, laboratory and chest CT findings of laboratory-confirmed and clinically diagnosed COVID-19 patients at first admission

PurposeThis study aims to identify chest computed tomography (CT) characteristics of coronavirus disease 2019 (COVID-19), investigate the association between CT findings and laboratory or demographic findings, and compare the accuracy of chest CT with reverse transcription-polymerase chain reaction (RT-PCR).MethodsOverall, 120 of 159 consecutive cases isolated due to suspected COVID-19 at our hospital between 17 and 25 March 2020 were included in this retrospective study. All patients underwent both chest CT and RT-PCR at first admission. The patients were divided into two groups: laboratory-confirmed COVID-19 and clinically diagnosed COVID-19. Clinical findings, laboratory findings, radiologic features and CT severity index (CT-SI) of the patients were noted. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of chest CT were calculated for the diagnosis of COVID-19, using RT-PCR as reference.ResultsThe laboratory-confirmed and clinically diagnosed COVID-19 groups consisted of 69 (M/F 43/26, mean age 50.9±14.0 years) and 51 patients (M/F 24/27, mean age 50.9±18.8 years), respectively. Dry cough (62.3% vs. 52.9%), fever (30.4% vs. 25.5%) and dyspnea (23.2% vs. 27.5%) were the most common admission symptoms in the laboratory-confirmed and clinically diagnosed COVID-19 groups, respectively. Bilateral multilobe involvement (83.1% vs. 57.5%), peripheral distribution (96.9% vs. 97.5%), patchy shape (75.4% vs. 70.0%), ground-glass opacities (GGO) (96.9% vs. 100.0%), vascular enlargement (56.9% vs. 50.0%), intralobular reticular density (40.0% vs. 40.0%) and bronchial wall thickening (27.7% vs. 45.0%) were the most common CT findings in the laboratory-confirmed and clinically diagnosed COVID-19 subgroups, respectively. Except for the bilateral involvement and white blood cell (WBC) count, no difference was found between the clinical, laboratory, and parenchymal findings of the two groups. Positive correlation was found between CT-SI and, lactate dehydrogenase (LDH) and C-reactive protein (CRP) values in the laboratory-confirmed COVID-19 subgroup. Chest CT and RT-PCR positivity rates among patients with suspected COVID-19 were 87.5% (105/120) and 57.5% (69/120), respectively. The sensitivity, specificity, PPV, NPV and accuracy rates of chest CT were determined as 94.2% (95% confidence interval [CI], 85.8–98.4), 21.57% (95% CI, 11.3–35.3), 61.90% (95% CI, 58.2–65.5), 73.3% (95% CI, 48.2–89.1) and 63.3% (95% CI, 54.1–71.9), respectively.ConclusionChest CT has high sensitivity and low specificity in the diagnosis of COVID-19. The clinical, laboratory, and CT findings of laboratory-confirmed and clinically diagnosed COVID-19 patients are similar