Dış Merkezi Çelik Çapraz Tiplerinin Çerçeve Davranışına ve Yapı Maliyetine Etkisinin İncelenmesi

Bugün Türkiye’de çelik yapıların tasarımı ve deprem davranışları, özellikle yüksek yapıların projelendirilmesinde, inşaat mühendisliği açısından oldukça önemlidir. Diğer taraftan özellikle deprem ve rüzgâr gibi yatay etkilere karşı değişik yanal yük taşıyıcı çelik çerçeve türleri uygulanmaktadır. Bu nedenle doğru çelik taşıyıcı sistem seçiminin önemli olduğu açıkça ortadır. Bu çalışmanın temel amacı çelik yapıların özellikle depremlere karşı dayanımını artıran, farklı dış merkezi çelik çapraz tiplerinin söz konusu yapıların davranışına etkilerini karşılaştırmalı olarak incelemektir. Yapısal çözümlemelerden elde edilen sonuçlar, dış merkezi çelik çaprazlara sahip olan yapı modellerinin moment aktaran çerçeveye göre daha güvenli olduğunu ve çelik yapıların yanal rijitliği artıran dış merkezi çelik çapraz elemanların varlığının yapı performansını arttırdığını ortaya koymaktadır. Bu husus Türkiye’de inşa edilecek çelik yapılarda, yapı güvenliği bakımından çapraz elemanlara sahip çelik taşıyıcı sistemlerin tercih edilmesinin daha rasyonel olacağını göstermektedir

Türkiye’de Halk Kütüphanecilerinin Hizmet İçi Eğitim Gereksinimleri

The goal of the study to find out why the public librarians need for in-service trai­ning, the extent of their needs, qualifications and what kind of an in-service trai­ning they need. For the collection of data, a questionnaire was applied to the lib­rarians, vice-managers and managers who graduated from librarianship depart- ments of the universities and working for the public libraries in Turkey. The research universe consists the graduates of Department of Information Management and work as librarians, vice directors and directors in the public libraries of the Ministry of Culture and Tourism. 243 questionnaires were sent to the managers and librarians out of323. In the research, 106 librarians, 37 directors / vice di­rectors are exemplifıed out of the total number of 143 graduates of Department of Information Management. The questionnaire was applied to all subjects in Ja- nuary and February 2008. The findings of the study indicate that the professio- nal librarians and managers who work in public libraries needs in-service trai­ning.Bu çalışmada Türkiye'deki halk kütüphanelerinde görev yapan kütüphanecilerin hizmet içi eğitim gereksinimleri konusu irdelenmeye çalışılmıştır. Araştırmanın amacı; Türkiye'de halk kütüphanelerinde çalışan kütüphanecilerin, hizmet içi eğitime neden gereksinim duyduklarını, bu gereksinimin boyutunu, özelliklerini ve nasıl bir hizmet içi eğitim istediklerini ortaya koymaktır. Araştırmanın evreni­ni, Kültür ve Turizm Bakanlığı'na bağlı olarak etkinlik gösteren halk kütüphane­lerinde, kütüphaneci, müdür yardımcısı ve müdür kadrolarında görev yapan Bil­gi ve Belge Yönetimi Bölümü mezunları oluşturmaktadır. Araştırmanın evrenini, 243'ü kütüphaneci, 80'i müdür ve müdür yardımcısı olmak üzere toplam 323 Bil­gi ve Belge Yönetimi Bölümü mezunu oluşturmaktadır. Çalışmada evren, 106 kü­tüphaneci, 37 müdür ve müdür yardımcısı olmak üzere toplam 143 Bilgi ve Bel­ge Yönetimi Bölümü mezunu ile örneklenmiştir. Anketler, Ocak-Şubat 2008 tarih­lerinde bütün deneklere uygulanmıştır. Araştırmadan elde edilen bulgular ışığın­da, araştırmaya katılan kütüphanecilerin çok büyük bir bölümünün (%89,5) hiz­met içi eğitime gereksinim duyduğu anlaşılmıştır

A Research on Reading Habits of the Public Librarians in Ankara

Betimleme yöntemi ile gerçekleştirilen bu araştırma, Ankara’daki halk kütüphanelerinde görev yapmakta olan kütüphanecilerin okuma alışkanlıklarının düzeyini ve niteliğini belirlemeyi amaçlamaktadır. Bilgi ve Belge Yönetimi mezunu olup kütüphane müdürü, kütüphane müdür yardımcısı ve kütüphaneci kadrolarında görev yapan bütün personel, bu araştırmada kütüphaneci olarak tanımlanmıştır. Araştırmanın kapsamını, Ankara’daki halk kütüphanelerinde görev yapan 53 kütüphaneci oluşturmaktadır. Çalışmada 32 soruluk bir anket uygulanmış, 38 kişiden geri dönüş alınmıştır. Araştırmada evrenin %72’sine ulaşılmıştır. Araştırma sonucuna göre; Ankara’daki halk kütüphanelerinde görev yapan kütüphaneciler orta düzeyde kitap okuma alışkanlığına sahip olup, seçici ama düzensiz bir biçimde kitap okumaktadırlar. Ankara’daki kütüphanecilerin %53’ü okuma alışkanlığına sahip olduğunu düşünse de yüksek düzeyde kitap okuma alışkanlığına sahip halk kütüphanecilerinin oranı %32’dir. Araştırma kapsamında elde edilen sonuçlar ışığında öneriler sunulmuştur.This research, carried out by the descriptive method, aims to determine the level and quality of reading habits of the librarians working in public libraries in Ankara. In this study all staff with a degree in Departments of Information Management (Librarianship) and who serves on the library directors, deputy directors and librarian were defined as librarians. The scope of the research consists of 53 librarians working in public libraries in Ankara. In this survey, a questionnaire with 32 questions wasapplied, 38 responses were received from the questionnaire and 72% of the universe has been reached. According to the research result; librarians working in public libraries in Ankara have a moderate level of reading habits. Librarians read books in a selective but irregularway. While 53% of librarians think that they have reading habits, only 32% of public librarians have a high level of reading habits. Various suggestions are presented in the light of the results obtained in the research

Relation of apolipoprotein E gene polymorphism with the severity of coronary artery disease in patients with stable ischemic heart diseas

Aim: Atherosclerosis begins from an early age and manifests in later years as Coronary artery disease (CAD). This inflammatory process is aggravated by age, smoking, hypercholesterolemia, hypertension, diabetes mellitus, and genetic factors. We aimed to investigate which isoform of APOE is related to extensive coronary lesions in patients with stable coronary heart disease. Materials and Methods: This study was carried on single center. One hundred and ten patients diagnosed with stable coronary artery disease by coronary angiogram were enrolled consecutively. Syntax score was calculated by a tool of website calculator (www. syntax.com). According to the Syntax score, patients were split into three groups. APOE genotyping was performed through blood samples. Patients split into three groups according to the APOE genotypes: E4 (3/4 and 4/4 genotypes), E3(3/3 genotype), E2 (2/2 and 2/3 genotypes). APOE groups were compared according to baseline characteristics and syntax scores. (%82.6) değil (82.6%) olacak. Lütfen İngilizce kurala göre düzeltiniz. Tüm sayısal değerlerde virgülleri de nokta yapmayı unutmayınız. Results: Coronary angiography and APOE genotypes of 98 patients were analyzed. 81 of patients (%82.6) had E3E3 allele; 6 of patients (%6.1) had E2E3 allele; 10 patients (%10.2) had E3E4 allele and 1 patient (%1) had E2E4 allele. Due to the contrast effect of E2 and E4 on CAD, we excluded patients with E2E4 allele from the study. Firstly, we assessed distribution of APOE genotype E2 (E2E3), E3 (E3E3 and E3E4), E4 (E3E4) within 3 groups of syntax scores. Total of 6 patients of E2 allele was at low syntax score group. 83 patients of E3 allele were at the low-risk group of syntax score. 10 patients of E3 allele were at the mid group and 4 patients were at the high-risk group of syntax score. 7 patients of E4 allele subjects were at the low-risk and 1 patient was at the high-risk group of syntax score. Compared to syntax score groups and APOE genotypes, E2 alleles were in lower syntax score group versus E3 (P=0.046) and E4 (P=0.003) alleles. However E4 alleles were in higher syntax score group versus E3 alleles (P= 0.034). The Syntax score was seemed to be lower in the E2 allele group versus E4 and E2 groups (P=0.013). Conclusion: we reported the first study that E2 allele was related with less and E4 allele was more extensity and severity of CAD in patients with stable ischemic coronary diseas

Comparison of two pandemics: H1N1 and SARS-CoV-2

OBJECTIVE: We aimed to compare the clinical, epidemiological, and prognostic features of the H1N1 pandemic in 2009 and the severe acute respiratory syndrome coronavirus 2 pandemic in 2020. METHODS: This retrospective study involved subjects from seven centers that were admitted and found to be positive for H1N1 or COVID-19 real-time polymerase chain reaction test. RESULTS: A total of 143 patients with H1N1 and 309 patients with COVID-19 were involved in the study. H1N1 patients were younger than COVID-19 ones. While 58.7% of H1N1 patients were female, 57.9% of COVID-19 patients were male. Complaints of fever, cough, sputum, sore throat, myalgia, weakness, headache, and shortness of breath in H1N1 patients were statistically higher than in COVID-19 ones. The duration of symptoms until H1N1 patients were admitted to the hospital was shorter than that for COVID-19 patients. Leukopenia was more common in COVID-19 patients. C-reactive protein levels were higher in COVID-19 patients, while lactate dehydrogenase levels were higher in H1N1 ones. The mortality rate was also higher in H1N1 cases. CONCLUSIONS: The severe acute respiratory syndrome coronavirus 2 pandemic is a major public health problem that continues to affect the world with its high rate of contagion. In addition, no vaccines or a specific drug for the benefit of millions of people have been found yet. The H1N1 pandemic is an epidemic that affected the whole world about ten years ago and was prevented by the development of vaccines at a short period. Experience in the H1N1 pandemic may be the guide to prevent the COVID-19 pandemic from a worse end

Characteristics of food allergy in children: National multicenter study

Conference: Congress of the European-Academy-of-Allergy-and-Clinical-Immunology (EAACI) Location: Lisbon, PORTUGAL Date: JUN 01-05, 2019Background : Food allergies impose a significant burden on the life of the child and the family. In this study, to determine the demographic characteristics of food allergies, we investigated the characteristics of patients with food allergies in different regions of Pediatric Allergy- Immunology departments in Turkey. Method : Turkey ' s National Study of Allergy and Clinical Immunology Society has conducted a Study Group on Food Allergies. 25 centers participated in this multicenter, cross- sectional and descriptive study.European Academy of Allergy and Clinical Immunolog

Processing of unglazed ceramic tiles from blast furnace slag

In this study, the unglazed ceramic tiles from blast furnace slag and clay have been investigated. Clay in the range of 0-100 wt.% have been added into the blast furnace slag. Cylindrical specimens, shaped by pressing the blast furnace slag containing clay, were sintered at 1150, 1175 and 1200 degrees C for 1 h. The firing shrinkage, bulk density, apparent porosity and water absorption of sintered specimens are explained on the basis of X-ray diffraction (XRD), optical microscopy, scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) analysis. The gehlenite, anorthite, quartz, akermanite, wollastonite and enstatite phases were found by XRD of sintered samples and SEM studies revealed crystals embedded in the glassy matrix. The results showed that ceramic tiles such as wall tile could be made from blast furnace slag and clay mixture. (c) 2006 Elsevier B.V. All rights reserved