16 research outputs found

    Evaluation of patients with fibrotic interstitial lung disease: Preliminary results from the Turk-UIP study

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    OBJECTIVE: Differential diagnosis of idiopathic pulmonary fibrosis (IPF) is important among fibrotic interstitial lung diseases (ILD). This study aimed to evaluate the rate of IPF in patients with fibrotic ILD and to determine the clinical-laboratory features of patients with and without IPF that would provide the differential diagnosis of IPF. MATERIAL AND METHODS: The study included the patients with the usual interstitial pneumonia (UIP) pattern or possible UIP pattern on thorax high-resolution computed tomography, and/or UIP pattern, probable UIP or possible UIP pattern at lung biopsy according to the 2011 ATS/ERSARS/ALAT guidelines. Demographics and clinical and radiological data of the patients were recorded. All data recorded by researchers was evaluated by radiology and the clinical decision board. RESULTS: A total of 336 patients (253 men, 83 women, age 65.8 +/- 9.0 years) were evaluated. Of the patients with sufficient data for diag-nosis (n=300), the diagnosis was IPF in 121 (40.3%), unclassified idiopathic interstitial pneumonia in 50 (16.7%), combined pulmonary fibrosis and emphysema (CPFE) in 40 (13.3%), and lung involvement of connective tissue disease (CTD) in 16 (5.3%). When 29 patients with definite IPF features were added to the patients with CPFE, the total number of IPF patients reached 150 (50%). Rate of male sex (p<0.001), smoking history (p<0.001), and the presence of clubbing (p=0.001) were significantly high in patients with IPE None of the women <50 years and none of the men <50 years of age without a smoking history were diagnosed with IPE Presence of at least 1 of the symptoms suggestive of CTD, erythrocyte sedimentation rate (ESR), and antinuclear antibody (FANA) positivity rates were significantly higher in the non-IPF group (p<0.001, p=0.029, p=0.009, respectively). CONCLUSION: The rate of IPF among patients with fibrotic ILD was 50%. In the differential diagnosis of IPF, sex, smoking habits, and the presence of clubbing are important. The presence of symptoms related to CTD, ESR elevation, and EANA positivity reduce the likelihood of IPF

    Reimagining the future of transport and forever open road program

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    Transportation has a very wide effects either economic or social on human life. Millions of people are also working directly or indirectly for this industry. So, it is a mandatory for governments to evaluate their aspects on transportation construction, management, control and maintenance by increasing mobility. Also new technological developments and researches caused some changes in the expectations at many fields by new design and management approaches. The European Commission have supported some researches within Horizon 2020 program for new innovations to develop a highly efficient and effective cross modal transportation. In this paper recent developments at FOX (Forever Open Infrastructure Across all Transport Modes) program seeks to develop general methods for all transport modes and FOR (Forever Open Roads) program have reviewed. There are also benefits of FOR program that developed by Forum of European National Highway Research Laboratories (FEHRL) have mentioned and the outcome elements as automated, autonomous and resilient roads of the program have described

    Karayollarında yeni teknolojik gelişmeler üzerine bir değerlendirme

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    Roads, together with social benefits, play an important role in contributing to economic development and growth in a community. For this reason, they play a vital role in national growth production. Although in the world its length is 16.3 million Km, depending on each country, the need for new construction and maintenance is always a must. On the other hand, global changes pressure all sectors to operate within the sustainability framework, where the asphalt industry is not exempt. Also, decision-makers are issuing day-to-day regulations to protect the atmosphere and human health and relief for this reason. Under these conditions, all the stakeholders of highway pavement industry including governments and academicians are searching for new techniques and materials, promoting conservation, indicating that by balancing between technical improvements and cost-effective environmental and human health care solutions. The value of the use of any "right," product, production, techniques, facility, the fund is becoming more and more important to each stakeholder in this regard. In this study, new technological developments in road pavements are taken into consideration and evaluated in terms of sustainability.Yollar, sosyal faydalarla birlikte, bir toplumda ekonomik kalkınmaya ve büyümeye katkıda bulunmada önemli bir rol oynar. Bu nedenle, bir ülkenin gelişmesinde hayati rolü bulunmaktadır. Dünyada karayolu uzunluğu 16,3 milyon Km olsa da her ülkeye bağlı olarak, yeni inşaat ve bakım ihtiyacı her zaman bir zorunluluktur. Öte yandan, küresel değişimler, asfalt endüstrisinin muaf olmadığı, sürdürülebilirlik çerçevesi içinde faaliyet göstermesi için tüm sektörleri baskı altında tutuyor. Bu nedenle karar vericiler atmosferi, insan sağlığını ve rahatlığını korumak için günlük düzenlemeler yapıyorlar. Bu koşullar altında, hükümetler ve akademisyenleri de içeren karayolu endüstrisinin tüm paydaşları, teknik iyileştirmeler ile düşük maliyetli, çevre ve insan sağlığı çözümleri arasındaki dengeyi sağlayarak, korumayı teşvik eden yeni teknikler ve materyaller aramaktadır. Herhangi bir "doğru" ürün, üretim, teknik, tesis, fon kullanımının değeri, bu bağlamda her paydaş için giderek daha önemli hale gelmektedir. Bu çalışmada yol kaplamalarındaki yeni teknolojik gelişmeler dikkate alınarak, sürdürülebilirlik bakımından değerlendirilmiştir

    Elektrik Enerjisi Üreten Şirketlerin Covid-19 Salgın Ortamındaki Finansal Performanslarının ROC ve SMART Bütünleşik Yaklaşımı ile Analizi

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    https://doi.org/10.33905/bseusbed.1005798ÖzGelişen teknoloji, küreselleşen piyasalar, yapısal regülasyonlar ve artan nüfus doğrultusunda artan enerji talebinin etkisi ile tüm dünyada enerji sektörü yıldan yıla büyümektedir. Enerji sektörü içinde en büyük paya da elektrik enerjisi sahiptir. Elektrik üretimi, sanayi sektörü için dolayısı ile de ülke ekonomileri için en önemli girdi niteliğindedir. Tüm dünyada olduğu gibi Türkiye'de de Covid-19 pandemisi nedeniyle elektrik üretimi ve elektrik tüketimi bu süreçten etkilenmiştir. Bu çalışmanın amacı, Borsa İstanbul Elektrik Endeksinde (XELKT) işlem gören elektrik üretimi yapan halka açık şirketlerin Covid-19 pandemi ortamındaki finansal performansını değerlendirmektir. Değerlendirmede, Borsa İstanbul bünyesindeki XELKT endeksinde işlem gören yedi adet elektrik üreten enerji şirketine ait Kamuyu Aydınlatma Platformu (KAP)`tan alınan 2020 yılı konsolide mali tablo verileri kullanılmıştır. Çalışmanın analizlerinde çok kriterli karar verme yöntemlerinden ROC ve SMART yöntemleri bütünleşik olarak kullanılmıştır. ROC (Rank Order Centroid) yöntemi ile değerlendirme kriterlerinin ağırlıkları bulunmuş, SMART (Simple Multi-Attribute Rating Technique) yöntemi ile de elektrik enerjisi üreten yedi şirketin finansal performansı değerlendirilerek performans sıralaması yapılmıştır. 2020 yılı finansal performans sıralamasında ilk sırada AKSA Enerji Üretim A.Ş., son sırada da ZORLU Enerji Elektrik Üretim A.Ş. yer almıştır. Finansal performans değerlendirilmesi yapılan çalışmalarda çok kriterli karar verme yöntemlerinin kullanıldığı çalışmalara sıklıkla rastlanmaktadır. Ancak elektrik enerjisi üreten şirketlerin finansal performans değerlendirmesinde ROC ve SMART yöntemlerinin bütünleşik olarak kullanıldığı bir çalışmaya rastlanmamıştır. Çalışmanın bu yönüyle literatüre katkı yapacağı ve sektöre fayda sağlayacağı düşünülmektedir.Anahtar KelimelerCovid-19,&nbsp;Finansal Performans,&nbsp;Çok Kriterli Karar Verme,&nbsp;ROC yöntemi,&nbsp;SMART Yöntemi</div

    Comparison of dynamic modulus assignments for ısparta state highways according to mechanistic-empirical pavement design method

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    Mechanistic-Empirical Pavement Design Method (MEPDM) determines the necessary pavement thickness for given design inputs and deformations in pavement by combining the parameters of mechanical modeling and observations of pavement performance through the pavement design life. To examine various distresses including cracking, rutting and roughness in MEPDM, pavement dynamic modulus (E*) which is a function of age, temperature, rate of loading, and mixture properties, such as aggregate air voids, gradation, binder stiffness and binder content needs to be determined. For this, there are three levels of analysis in MEPDM. In Level 3, there is no need for laboratory tests, and there are prediction models to assign the dynamic modulus. These models can implement time-dependent analysis of pavement. In this study, statistical climate data analysis of 20 years including 1995–2014 period of Isparta province was examined. Then, the prediction models were used to determine the dynamic modulus master curves of Isparta state highways, and these master curves were compared. © Springer Nature Singapore Pte Ltd. 2020

    Covid-19 Salgınının Banka Performanslarına Etkisinin SECA Yöntemiyle Değerlendirilmesi

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    ÖzCovid-19 salgını ile oluşan kaos ve belirsizlik dünyada ve ülkemizde bütün sektörleri etkilemiştir. Finansal piyasalar ve bankacılık sektörü de pandemiden en çok etkilenen sektörlerdendir. Fon arz ve talebinin buluştuğu bankalar, pandeminin neden olduğu belirsizlik ve risk altında kredi ve mevduat dengesini düzenlemekte güçlük yaşamakta bu da finansal performanslarına etki etmektedir. Çalışmanın amacı, Covid-19 pandemi ortamında Borsa İstanbul (BİST)tei&amp;#x15F;&amp;#x2264;mg&amp;#xF6;renbankalar&amp;#x131;nf&amp;#x2208;ansalperformanslar&amp;#x131;n&amp;#x131;de&amp;#x11F;er&amp;#x2264;ndirmektir.De&amp;#x11F;er&amp;#x2264;ndirmede,&amp;#xE7;al&amp;#x131;&amp;#x15F;makapsam&amp;#x131;ndakiB&amp;#x130;ST&amp;#x2032;tei&amp;#x15F;&amp;#x2264;mg&amp;#xF6;renonikibankayaaitpayse&amp;#x2260;t&amp;#x2264;r&amp;#x2208;&amp;#x2208;,Ka&amp;#x3BC;yuAyd&amp;#x131;nlatmaPlatfor&amp;#x3BC;(KAP)" role="presentation" style="display: inline-block; line-height: 0; font-size: 17.22px; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">teiş≤mgörenbankalarınf∈ansalperformanslarınıdeğer<span id

    Titreşime maruz kalan inşaat işçileri için optimal emeklilik yaşı: Türkiye'de bir vaka çalışması

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    Vibrations namely; sound waves are the waves that have a certain number of repetitions in a period. The difference from the sound waves is that the sound is transmitted through the air, while the vibration uses the solid parts of the body. Vibrations pass to operators' hands and arms and even to all their bodies from machinery and equipment used in building operations. Vibrations cause many discomforts. Especially in the construction sector, serious health problems are observed in workers working in high-frequency vibrationemitting machines and equipment. The most common of these health problems is a vibratory syndrome, which causes serious occupational and some health problems in the medium and long term. Vibration syndrome sufferers especially in construction works experience functional, social and phycological disabilities. Hence, the insurances and the depreciation of these occupations must be different from those of other employees. In this study, construction workers’ vibration syndrome risk classifications were conducted. Difficulty in tight jar opening, weak hand grip and finger color changes are among the general problems of the employees. According to the questionnaire, finger coldness and finger numbness are less common. According to this results suggestion on necessary precautions and legal legislation were presented. A Taguchi method-based optimization was performed on the retirement age of construction workers exposed to vibration. It is concluded that the working time of construction workers should be re-examined as per the analysis results. Related legislations can be kept up with the date as per the recommended retirement age for each occupation.Titreşimler yani; ses dalgaları, belirli bir süre içinde belirli sayıda tekrar eden dalgalardır. Ses dalgalarından farkı, sesin hava yoluyla iletilmesidir, titreşim ise vücudun katı kısımlarını kullanır. Titreşimler, operatörlerin el ve kollarına ve hatta tüm yapılarına bina operasyonlarında kullanılan makine ve ekipmanlardan geçer. Titreşimler birçok rahatsızlığa neden olur. Özellikle inşaat sektöründe, yüksek frekanslı titreşim yayıcı makina ve ekipmanlarda çalışan işçilerde ciddi sağlık sorunları gözlenmektedir. Bu sağlık sorunlarından en yaygın olanı orta ve uzun vadede ciddi mesleki ve bazı sağlık sorunlarına neden olan titreşimli bir sendromdur. Titreşim sendromu hastaları özellikle inşaat işlerinde fonksiyonel, sosyal ve psikolojik sakatlık yaşarlar. Bu nedenle, bu mesleklerin sigortaları ve amortismanları diğer çalışanlardan farklı olmalıdır. Bu çalışmada inşaat işçilerinin titreşim sendromu risk sınıflamaları yapılmıştır. Sıkı kavanoz açma zorluğu, el kavrama zayıflığı ve parmak rengi değişiklikleri çalışanların genel sorunları arasında öne çıkmaktadır. Ankete göre parmak soğukluğu ve parmak uyuşukluğu daha az ortaya çıkmaktadır. Bu sonuca göre gerekli önlemler ve yasal mevzuat önerileri sunuldu. Titreşime maruz kalan inşaat işçilerinin emeklilik yaşı için Taguchi metoduna dayalı bir optimizasyon yapıldı. İnşaat işçilerinin çalışma sürelerinin analiz sonuçlarına göre yeniden incelenmesi gerektiği sonucuna varılmıştır. İlgili mevzuat, her meslek için önerilen emeklilik yaşı uyarınca güncel tutulabilir

    The investigation of polyamide fiber as an additive in hma

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    5th International Conference on Road and Rail Infrastructure (CETRA)-- MAY 17-19, 2018 -- Zadar, CROATIAWOS:000518218300049The number of heavy vehicles on traffic and traffic volume are extremely increasing nowadays. Consequently, maintenance costs are increasing too. So, durability becomes necessary in asphalt pavement design and construction. For this purpose, asphalt industry partners are investigating innovative technologies and additives for Hot Mix Asphalt (HMA) Pavements. In this study, the utility of Polyamide 6.6, which is a synthetically produced flexible and highly thermoplastic material that have good mechanical and physical properties in terms within the nylon species, was investigated in HMA as a fiber. For examining the test results, specimens were prepared in four different proportions including reference specimens. Volumetric mix design was used to determine the optimum bitumen content. Then Indirect Tensile Strength (ITS) Test was applied to HMA specimens. The aim of this research was to identify the usability of Polyamide 6.6 in HMA mixtures as a fiber, and the engineering properties of the specimens with Polyamide 6.6 fiber.Univ Zagreb, Univ Zagreb, Fac Civil Engn, Dept Transportat Engn, Croatian Acad Engn, Minist Sci & Educ, Minist Sea, Transport & Infrastructure, Minist Construct & Phys Planning, Int Road Federat, Forum European Natl Highway Res Labs, Geobrugg AG, Monterra d o o, Siemens d d, Beton Lucko d o o, Nin Saltwork

    Usability of hemp fiber in dense graded hot mix asphalt mixture

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    5th International Conference on Road and Rail Infrastructure (CETRA)-- MAY 17-19, 2018 -- Zadar, CROATIAWOS:000518218300052The usage of fibers as an additive to reinforce the paving material have a long history like decades in the World. In stone matrix, open graded or porous mixtures, these fibers were commonly used to increase the adhesion between aggregate and binder and this property was usable in asphalt mixture for preventing the drain down of binder. Also, fibers were used for improving crack resistance and increasing stability in dense graded asphalt mixtures too. As, the aphalt is generally acknowledged as a strong material for compression loads and weak for tension loads. In theory, fibers that have high tensile strength can reduce the stresses relatively to weak asphalt mixtures by transferring the stresses for increasing the tensile strength of the mixture. For investigating the efficiency of the fibers there have been many types and forms of fibers used either experimentally or routinely in asphalt mixtures. These investigations leaded researchers to the plant-based fibers like woody (such as jute, flax, straw, and hemp), leaves and seeds. For this aim the usability of hemp fiber examined in this study. For examining the test results, specimens were prepared in four different proportions including reference specimens. Volumetric mix design was used to determine the optimum bitumen content. Then Indirect Tensile (IDT) Strength Test was applied to HMA specimens.Univ Zagreb, Univ Zagreb, Fac Civil Engn, Dept Transportat Engn, Croatian Acad Engn, Minist Sci & Educ, Minist Sea, Transport & Infrastructure, Minist Construct & Phys Planning, Int Road Federat, Forum European Natl Highway Res Labs, Geobrugg AG, Monterra d o o, Siemens d d, Beton Lucko d o o, Nin Saltwork
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