Gazi Hastanesi

Abstract For any n and l values, we present a simple exact analytical solution of the radial Schrödinger equation for the Kratzer potential within the framework of the asymptotic iteration method (AIM). The exact bound‐state energy eigenvalues ( E nl ) and corresponding eigenfunctions ( R nl ) are calculated for various values of n and l quantum numbers for CO, NO, O 2 , and I 2 diatomic molecules. © 2006 Wiley Periodicals, Inc. Int J Quantum Chem, 2007

Bu çalışmanın amacı, Brown, Miller ve Lawendowski (1999) tarafından davranışsal öz-düzenlemeyi ölçmek amacıyla geliştirilmiş olan Öz-Düzenleme Ölçeği’ni Türkçeye uyarlamak, geçerlik ve güvenirlik çalışmasını yapmaktır. Araştırmanın çalışma grubunu Gazi Üniversitesi, Gazi Eğitim Fakültesi’nde öğrenim görmekte olan 591 öğrenci oluşturmaktadır. Öncelikle ölçeğin Türkçeye uyarlama çalışmaları gerçekleştirilmiş ve çalışma grubundan elde edilen veriler üzerinde ölçeğin geçerliği ve güvenirliği için gerekli istatistiksel analizler yapılmıştır. Ölçeğin yapı geçerliğine kanıt sağlamak amacıyla yapılan açımlayıcı faktör analizi sonucunda üç faktörlü 51 maddeden oluşan ölçek elde edilmiştir. Madde geçerliğine kanıt olarak da alt ve üst grup ortalamaları farkına dayalı madde analizi yapılmıştır. Ölçeğin güvenirliğini test etmek için hesaplanan iç tutarlık katsayısı Cronbach alfa değeri (α) ,87 olarak bulunmuştur. Elde edilen bulgular ölçeğin Türkçeye uyarlanmış formunun ülkemizde kullanılabilir, geçerlik ve güvenirlikte olduğunu göstermektedir.

Tea has been a very popular beverage around the world for centuries. The reason that it is delicious, enabling hydration, showing warming and relaxing effect can be mentioned why it is consumed so much in addition to its prominent health effects. Although the catechins and caffeine are the primary bioactive components that are related with the health effects of the tea, the health effects of theanine amino acid, which is a nonproteinic amino acid special to tea, has become prominent in recent years. It has been known that the theanine amino acid in tea has positive effects especially on relaxing, cognitive performance, emotional status, sleep quality, cancer, cardiovascular diseases, obesity, and common cold. The results of acute and chronic toxicity tests conducted on the safety of theanine express that L-theanine is reliable in general even if it is consumed too much with diet. However, it has not revealed a clear evidence-based result yet regarding theanine metabolism, health effects, and its safety. Within this frame, chemical structure of theanine, its biosynthesis, dietary sources, metabolism, health effects, and safety are discussed in present study.

OBJECTIVES: We aimed to assess the efficacy of greater occipital nerve (GON) blockade at chronic migraine (CM) treatment. MATERIALS AND METHODS: Patients with CM were randomly divided into two groups of 42. GON blockade was administered four times (once per week) with saline in group A or bupivacaine in group B. After 4 weeks of treatment, blinding was removed; in group A, GON blockade was achieved using bupivacaine, while group B continued to receive bupivacaine, and blockade was administered once per month, then followed for 2 months. Primary endpoint was the difference in number of headache days, duration of headache, and pain scores. RESULTS: Seventy-two of 84 patients completed the study. After 1 month of treatment, number of headache days had decreased from 16.9 ± 5.7 to 13.2 ± 6.7 in group A (P = 0.035) and from 18.1 ± 5.3 to 8.8 ± 4.8 in group B (P < 0.001), (P = 0.004, between groups); duration of headache (hour) had decreased from 24.2 ± 13.7 to 21.2 ± 13.4 in group A (P = 0.223) and from 25.9 ± 16.3 to 19.3 ± 11.5 in group B (P < 0.001), (P = 0.767, between groups). VAS score decreased from 8.1 ± 0.9 to 6.7 ± 1.6 in group A (P = 0.002) and from 8.4 ± 1.5 to 5.3 ± 2.1 in group B (P < 0.001), (P = 0.004, between groups). After blinding was removed (in 2nd and 3rd month), group A exhibited similar results like group B in 3rd month. CONCLUSIONS: Our results suggest that GON blockade with bupivacaine was superior to placebo and was found to be effective, safe, and cost-effective for the treatment of CM. According to our knowledge, this is the first randomized, multicentre, double-blind, and placebo-controlled study in the literature in this field of work.

AbstractResearch indicates that information sharing and conversational uses of online media by journalists, news organizations, and individual users render complex and networked social awareness systems that evolve beyond traditional ecologies of journalism. This essay examines the form of news "prodused" through networked platforms that converge broadcast and oral traditions of storytelling into contemporary news practices. Synthesizing existing research, I argue that the shape news takes on is affective, the form of production is hybrid, and that spaces produced discursively through news storytelling frequently function as electronic elsewheres, or as social spaces that support marginalized and liminal viewpoints. Affective news streams are defined as news collaboratively constructed out of subjective experience, opinion, and emotion all sustained by and sustaining ambient news environments. They provide liminal layers to storytelling, but also a way for storytelling audiences to feel their own place into a developing news story.KEYWORDS: affective newshybridityjournalismnetworked journalismnewsnews storytellingsocial media Notes1. For more on homophily, see Lazarsfeld and Merton (Citation1954) or McPherson, Smith-Lovin, and Cook (Citation2001). For a more focused analysis on how homophily drives information sharing, structures of influence, and behavioral contagion or information cascades, see, for example, Aral, Muchnik, and Sundararajan (Citation2009) or Watts (Citation2002).

We investigate high-dimensional non-convex penalized regression, where the number of covariates may grow at an exponential rate. Although recent asymptotic theory established that there exists a local minimum possessing the oracle property under general conditions, it is still largely an open problem how to identify the oracle estimator among potentially multiple local minima. There are two main obstacles: (1) due to the presence of multiple minima, the solution path is nonunique and is not guaranteed to contain the oracle estimator; (2) even if a solution path is known to contain the oracle estimator, the optimal tuning parameter depends on many unknown factors and is hard to estimate. To address these two challenging issues, we first prove that an easy-to-calculate calibrated CCCP algorithm produces a consistent solution path which contains the oracle estimator with probability approaching one. Furthermore, we propose a high-dimensional BIC criterion and show that it can be applied to the solution path to select the optimal tuning parameter which asymptotically identifies the oracle estimator. The theory for a general class of non-convex penalties in the ultra-high dimensional setup is established when the random errors follow the sub-Gaussian distribution. Monte Carlo studies confirm that the calibrated CCCP algorithm combined with the proposed high-dimensional BIC has desirable performance in identifying the underlying sparsity pattern for high-dimensional data analysis.

BACKGROUND: Since the introduction of isotretinoin to the market, many adverse psychiatric effects, including depression, anxiety and suicide attempts were reported. The aim of this study was to determine whether patients with acne who were treated with isotretinoin experienced significant increases in psychiatric symptoms over a 4-month period compared with patients who received topical acne therapy. METHODS: Seventy-eight acne patients were allocated either to isotretinoin treatment (study group) (n = 37) or to topical treatment (control group) (n = 41). Their psychological status was evaluated at the baseline, second and fourth months of the treatment. All patients were required to complete the dermatology life quality index (DLQI), the Hospital anxiety and depression (HAD) scale, and the beck depression inventory (BDI). RESULTS: The two groups were not different from each other in terms of DLQI, BDI, HAD-A, HAD-D and total HAD scores at baseline. However, at the end of the second month quality of life was more impaired in the topical treatment group compared to the isotretinoin group (P < 0.05), and there were no difference between two groups in terms of BDI, HAD-A, HAD-D, and total HAD scores (P > 0.05). At the end of fourth month quality of life and all psychological test scores had improved more in the isotretinoin group compared to topical treatment group (P < 0.05). CONCLUSION: Results of the present study indicate that there is no increase in depressive and anxiety symptoms in the isotretinoin treatment group compared to that in the topical group. Instead, successful treatment of acne seems to improve both depressive and anxiety symptoms and improve quality of life.

Diyabet; göz, böbrek ve kalp gibi organ ve sistemlere kalıcı hasar verebilen bir hastalıktır. Bazıromatolojik durumlar diyabet hastalarında daha sık görülmekte ve yaşam kalitesini olumsuzetkilemektedirler. Diyabetik keiroartropati, karpal tünel sendromu, Dupuytren kontraktürü veCharcot artropatisi bunlardan bazılarıdır. Bu romatolojik sorunların büyük bir kısmının glisemikkontrolün sağlanmasıyla durdurulabildiği gösterilmiştir. Bazı durumlarda ise cerrahi müdahalegerekir. Hekimlerin görevi; hastanın yaşamını olumsuz etkileyen bu sorunları tanıyabilmek vehastayı doğru tedavi seçeneğine yönlendirmektir

Abstract Minarets are very slender structures with an old existence. The historical ones are made of cut‐stone‐block masonry assembled in peripheral cylindrical wall with an interior helicoidal stair supported on a central core and on the wall. They are spread throughout the Islamic world and constitute an important heritage not only of religious value, but also of great cultural interest. Throughout the times, these structures as part of a mosque, have suffered significant damage during the earthquakes. Istanbul presents interesting characteristics to evaluate their dynamic behavior, as they are in great number, in an area where a large event in the next 30 years has been predicted. In this paper, we performed a series of in situ ambient vibration tests to old minarets of various sizes and compared results of frequencies with numerical modeling of the same structures. For the low‐amplitude motion, the frequency values of the first modes can be obtained from an empirical formulae function of the inertia of the cross‐section and of the height of the main ‘body.’ Damping ratios for these amplitudes are of the order of 0.5–1.0%. Dynamic linear analyses of these structures indicate that for most cases very high stresses develop for PGA above 0.5 g , an input with a reasonable chance of occurring in the next 30 years. These high stresses are expected to cause the toppling of the minarets in the form that has been observed in the recent past events. Copyright © 2011 John Wiley &amp; Sons, Ltd.

Bu araştırmada sağlıklı beslenmeye ilişkin tutum ölçeğinin geçerli ve güvenilir olarak geliştirilmesi amaçlanmıştır. Araştırma, 2018-2019 eğitim-öğretim yılında öğrenim gören 573 üniversite öğrencisi üzerinde yürütülmüştür. Açımlayıcı Faktör Analizi sonucunda, toplam varyansın % 57,79’unu açıklayan, 21 madde ve 4 faktörden oluşan bir yapı elde edilmiştir. Bu faktörler, Beslenme Hakkında Bilgi (BHB), Beslenmeye Yönelik Duygu (BYD), Olumlu Beslenme (OB) ve Kötü Beslenme (KB) olarak adlandırılmıştır. Doğrulayıcı faktör analizi sonucunda ölçeğin yeterli uyum indekslerine sahip olduğu kanıtlanmıştır. Ölçeğin güvenirliği iç tutarlılık katsayısı ve test tekrar test yöntemiyle incelenmiş, hesaplanan güvenirlik katsayılarının kabul edilebilir sınırlar içerisinde yer aldığı belirlenmiştir. Madde analizi sonucunda ölçekte yer alan maddelerin tamamının ayırt edici olduğu ortaya koyulmuştur. Sonuç olarak, Sağlıklı Beslenmeye İlişkin Tutum Ölçeği (SBİTÖ)’nin geçerli ve güvenilir bir ölçme aracı olduğu saptanmıştır.

The purposes of this study are to investigate the effects of an augmented reality application on students’ spatial ability and academic achievement, and to analyze the opinions of students and their teacher concerning augmented reality environments. To collect quantitative data, a quasi-experimental pretest-posttest with a control group design was employed, and to collect qualitative data, a case study design was used. The study was designed around the lesson topic “geometric objects and measuring volume,” and 88 sixth grade students participated. While the students in the experimental group studied the lesson topic using augmented reality and real objects, the students in the control group used only real objects. The results indicate that though a significant increase was observed in the spatial ability of both groups, no significant difference was found between the post-test spatial ability mean scores of the experimental and control groups. In addition to the spatial ability results, the students’ academic achievement scores in the experimental group significantly increased, but the small increase in the control group students’ scores was not significant. No significant difference was found between the post-test academic achievement scores of the experimental and control groups. In addition to the quantitative data, the qualitative data gathered from the students and the teacher yielded valuable information that may assist researchers who attempt to integrate augmented reality in education.

The aim of this study is to assess the need for orthodontic treatment in a Turkish school population and a group of population referred for orthodontic treatment. The study groups were 250 school children, 11-14 years of age, and 250 patients, 11-14 years of age, referred to the department of orthodontics. The Index of Orthodontic Treatment Need (IOTN) was used by two examiner in order to estimate the treatment need. The differences between the IOTN values for the boys and girls were also not statistically significant in both groups. When the dental health component of IOTN is considered, 38.8 per cent of Turkish school population showed great need treatment, 24.0 per cent moderate need treatment and slight or no need was 37.2 per cent. On the other hand, the referred population represented an 83.2 per cent great need treatment, 12.0 per cent moderate need treatment, 4.8 per cent no need treatment according to the DHC. The AC of IOTN in school population resulted in 4.8 per cent great need, 4.8 per cent moderate need, 90.4 per cent no need. These percentage were 36.8 per cent great need, 17.6 per cent moderate need, 45.2 per cent no need in referred population. Grade 8 was 28.8 per cent out of the 36.8 per cent great need percentage in referred population. Therefore, it can be concluded that the ectopic canines were the driving factor for the referred population.

2019’un sonunda Çin’in Hubei eyaleti Wuhan şehrinde ortaya çıkan ve yayılanSARS-CoV-2 virüsü sonucu meydana gelen COVID-19 pandemisihalen ciddi bir halk sağlığı problemi olarak etkisini sürdürmektedir. Virüsün yarasa kaynaklı olduğu düşünülmektedir. Hastalık damlacık ve temas yolu ile insandan insana bulaşmaktadır. İnkübasyon süresi ortalaması 4-5 gün (0-14 gün) olarak gösterilmiştir. En yaygın semptomları ateş, kuru öksürük ve nefes darlığıdır. Hastalık ileri yaş ve komorbid hastalığı olan kişilerde şiddetli ve mortal seyredebilmektedir. Erkeklerde daha fazla fatalite hızı gösterilmiştir. Fatalite hızı dünya genelinde %2-3 olarak değişmektedir. Yaş arttıkça fatalite hızı artmaktadır. Rutin BCG aşısı politikasının mortaliteyi azalttığı düşünülmektedir. Teşhis olası vakalarda virüsün solunum sekresyonlarında özel moleküler testlerle gösterilmesi ile konur. Klinik şüphe varlığında tedavi planlamasında akciğer grafisi ve bilgisayarlı tomografi gibi görüntüleme yöntemleri kullanılmaktadır. Esas olarak destekleyii ve ampirik tedavi uygulanmakta olup spesifik tedavisi ve aşısı henüz yoktur. İnsanların temasının azaltılması, kesin ve şüpheli vakaların izolasyonu ve bulaştan korunmak için kişisel koruyucu ekipmanların etkin kullanımı salgın ile mücadelede çok büyük öneme sahiptir.

OBJECTIVE: A comparison of psychiatric, psychological and somatic characteristics in specified subgroups of major depressive episodes (MDE). METHOD: In a stratified community sample of young adults investigated prospectively from age 20/21 to 40/41, we defined four MDE subgroups: i) DSM-IV melancholia or atypical depression (the 'combined group'), ii) pure melancholia, iii) pure atypical depression, and iv) unspecified MDE. RESULTS: The cumulative incidence rates of the four groups were 4.1%, 7.1%, 3.5% and 8.2% respectively. Women were over-represented in the combined and atypically depressed group. In 56 of 117 (47.9%) cases, melancholia was longitudinally associated with atypical MDE (n = 84) (OR = 11.9). CONCLUSION: Melancholic MDE was more severe than atypical MDE although the two groups shared many characteristics. The longitudinal overlap of melancholia with atypical depression in almost half of all cases calls for comparative analyses of combined, pure and unspecified MDE.

Bu çalışmanın amacı, Türkiye ve Kazakistan’daki öğretmen adaylarının dijital okuryazarlık düzeylerini ortaya koymak ve belirli değişkenlere göre karşılaştırmalı olarak incelemektir. Araştırma, ilişkisel tarama modeline uygun olarak gerçekleştirilmiştir. Araştırmanın evrenini 2015-2016 öğretim yılında Türkiye ve Kazakistan’da öğrenimlerine devam eden ilkokul ve ortaokul öğretmen adayları oluşturmaktadır. Örneklemini ise, 2015-2016 öğretim yılında Türkiye’de Gazi Üniversitesi, Kazakistan’da ise Ahmet Yesevi Üniversitelerinin Eğitim Fakültelerinde üç ve dördüncü sınıfa devam eden toplam 601 ilkokul ve ortaokul öğretmen adayları oluşturmaktadır. Araştırmada veri toplama aracı olarak Acar, 2014 tarafından geliştirilen Dijital Okuryazarlık Değerlendirme Ölçeği kullanılmıştır. Yapılan analizler sonucunda şu sonuçlara ulaşılmıştır; Cinsiyet değişkenine göre her iki ülkede de kadın öğretmen adayların erkek öğretmen adaylarından daha kalabalık olduğu saptanmıştır. Sınıf değişkenine göre araştırmaya katılan öğretmen adaylarının Türkiye’de 3 ve 4. sınıf sayıları benzerken Kazakistan’da dördüncü sınıfların daha kalabalık oldukları görülmüştür.

The purpose of this study is to analyze effects of blended learning environment on middle school student's’ engagement and academic achivement. Pretest-posttest control group quasi experimental design was utilized. The study was conducted with 52 students in experimental group and 55 students in control group. According to the results of this study in blended learning environment had meaningful increase in average academic achievement when compared to students in face-to-face learning environment. In addition, blended learning has a medium level effect size on students' levels of academic achievement. No meaningful statistical differences were detected for students’ engagement between both groups. However, in blended learning approach, average development of student engagement showed a meaningful rise when compared to face-to-face learning approach.

OBJECTIVE: Impaired glucose tolerance (IGT) represents a pre-diabetic state. Controversy continues in regards to its pathophysiology. The aim of this study was to investigate the differences in insulin sensitivity (IS) and secretion in obese adolescents with IGT compared with those with normal glucose tolerance (NGT) and type 2 diabetes. RESEARCH DESIGN AND METHODS: A total of 12 obese adolescents with NGT, 19 with IGT, and 17 with type 2 diabetes underwent evaluation of insulin sensitivity (3-h hyperinsulinemic [80 micro/m(2)/min]-euglycemic clamp), first-phase insulin and second-phase insulin secretion (2-h hyperglycemic clamp), body composition, and abdominal adiposity. Glucose disposition index (GDI) was calculated as the product of first-phase insulin x insulin sensitivity. RESULTS: Insulin-stimulated glucose disposal was significantly lower in subjects with type 2 diabetes compared with subjects with NGT and IGT, with no difference between the latter two. However, compared with youth with NGT, youth with IGT have significantly lower first-phase insulin and C-peptide levels and GDI (P = 0.012), whereas youth with type 2 diabetes have an additional defect in second-phase insulin. Fasting and 2-h glucose correlated with GDI (r = -0.68, P < 0.001 and r = -0.73, P < 0.001, respectively) and first-phase insulin but not with insulin sensitivity. CONCLUSIONS: Compared with youth with NGT, obese adolescents with IGT have evidence of a beta-cell defect manifested in impaired first-phase insulin secretion, with a more profound defect in type 2 diabetes involving both first- and second-phase insulin. GDI shows a significantly declining pattern: it is highest in NGT, intermediate in IGT, and lowest in type 2 diabetes. Such data suggest that measures to prevent progression or conversion from pre-diabetes to type 2 diabetes should target improvement in beta-cell function.

Research on mathematics teaching and learning has recently focused on affective variables, which were found to play an essential role that influences behaviour and learning. Despite its importance, problem posing has not yet received the attention it warrants from the mathematics education community. Perceived self-efficacy beliefs have been found to be a strong predictor of mathematical performance, while problem posing is considered to be a fundamental ability in mathematical learning. On the other hand majority of research in this area present a positive relation between attitude toward mathematics and success. Therefore, it is shown that attitude toward mathematics is a determinative of success or failure. In this respect this study examines the effect of problem posing instruction on the attitudes toward mathematics and mathematics self-efficacy of elementary prospective mathematics teachers. The study used a pre-test–intervention–post-test experimental design. Quantitative research techniques were employed to gather, analyze and interpret the data. The sample comprised 82 elementary prospective mathematics teachers. In the result of data analysis, it was determined that the effect of problem posing instruction on the attitudes toward mathematics and mathematics self-efficacy of elementary prospective mathematics teachers was in a positive way and at significant level.

Sonuç ve Öneriler: Araştırmanın bulgularına dayalı olarak, Suriyeli öğrenciler için planlı bir eğitim ve uyum programı hazırlanması ve öğretmenlere hizmet içi eğitim verilmesi önerilmektedir. Bulgular: Araştırmanın bulgularına göre, Suriyeli öğrencilerin yaşadıkları en büyük problemin Türkçe bilmemeleri ve akranları ile uyum sorunu yaşamaları olduğu; sınıfında Suriyeli öğrenci bulunan öğretmenlerin yaşadıkları en büyük problemlerin ise, Suriyeli öğrencilerle iletişim kuramamak ve onları eğitim-öğretim sürecine katamamak olduğu tespit edilmiştir. Yöntem: Araştırmada nitel araştırma yöntem ve teknikleri kullanılmıştır. Araştırma verileri, yarı yapılandırılmış görüşmeler yoluyla toplanmış ve içerik analiziyle çözümlenmiştir. Problem durumu: Bu çalışmanın amacı, eğitimlerine Türkiye’deki okullarda devam eden Suriyeli çocukların okula uyum süreçleri hakkında öğretmenlerin görüşlerinin alınmasıdır.

Günümüzde sosyal medya, bankacılık uygulamaları ve gelişmekte olan diğer teknolojiler cihazların büyük miktarda veri üretmesine neden olmaktadır. Bu verilerin kontrol, yönetim, bakım süreçleri ve güvenli bir şekilde paylaşılması gün geçtikçe daha da önem kazanmaktadır. Finans sektörünün liderliğinde veri depolama ve veri yönetim arayışlarına her geçen gün yeni bir bakış açısı veya teknoloji eklenmektedir. Bunun son ve en popüler örneklerinden biri Blok zinciri (Blockchain) teknolojisidir. Kripto para birimi Bitcoin’le en popüler zamanına ulaşan Blok zinciri teknolojisinin sadece bir sanal para birimi teknolojisi olmadığı açıktır. Bu araştırma Blok zinciri teknolojisini derinlemesine ele almakta, çeşitleri, mimarisi, çalışma prensibi, kullanım alanlarını inceleyerek bu teknolojiyi çeşitli kriterler açısından geleneksel veritabanı yönetim sistemleri ile karşılaştırmaktadır. Araştırma sonuçları merkezi yapıyı sonlandıran ve güvenliği ön planda tutan bu teknolojiye hızlı bir şekilde adapte olunması gerektiğini ortaya koymaktadır.