147 research outputs found

    Ensino de português para nativos turcos: Dificuldades na aprendizagem e fatores determinantes

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    O presente trabalho é o resultado de um curso de Português para imigrantes turcos em Portugal sem conhecimento prévio de Português. O processo de aprendizagem da língua portuguesa para os alunos nativos turcos foi difícil e desafiante, a partir do qual emergiu a questão fundamental deste trabalho: Quais são as dificuldades sentidas pelos imigrantes turcos em Portugal na aquisição da língua portuguesa? Esta dissertação de mestrado analisa as dificuldades confrontadas pelos falantes nativos da língua turca ao adquirir o português e procura formas de fornecer a educação adequada para os seus requisitos. As línguas turca e portuguesa são representativas de casos de aquisição de línguas em que a língua materna do aprendente é proveniente de uma família linguística diferente e as línguas conhecidas pelo aprendente são línguas distanciadas da língua estudadaThe present work is the result of a Portuguese course for Turkish immigrants without previous knowledge of Portuguese in Portugal. The learning process of the Portuguese language for native Turkish learners was difficult and challenging, from which the fundamental question of this paper emerged: What difficulties do Turkish immigrants in Portugal have in acquiring the Portuguese language? This master's thesis analyses the difficulties faced by native speakers of the Turkish language by acquiring Portuguese and seeks ways of providing an appropriate education for the requirements. The languages Turkish and Portuguese are representative of language acquisition cases in which the learner's native language comes from a different language family and the languages known to the learners are languages distanced from the studied languag

    Global Cities – Cities Changed Social-Cultural Space

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    In this article, we analyze different approaches to the term global city and reveal the process of formationof this phenomenon in social sciences. We consider the specifics of such concepts as a global city, aworld city, town information, a creative city. The global city is seen as a factor of influence on the socioeconomicprocesses of the modern world, which determines the impact depending not only on the size ofthe city. The modern urban development goal - to become visible on the world map of politics, economy,allowing the city to develop, involving active and creative actors in their own space. This article discussesthe methods and mechanisms that contribute to changes in the urban space by different examples. Theinstability, volatility of urban space, the dependence on a huge number of factors and side effects ofdecisions are the main problems of the modern management of urban space. For the world city, as asystem that defines and forms these processes, the author introduces the concept of a control point, whichis a landmark, setting the direction of development and changing the dynamics of socio-cultural space

    ELEKTRONİK DENEYLERİ İÇİN SANAL LABORATUAR UYGULAMASI

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    Web tabanlı eşzamansız (asenkron) eğitim son zamanlarda ülkemizde ve dünyada yeni ve gelişen bir eğitim modeli olarak karşımıza çıkmaktadır. Bu çalışmada Selçuk Üniversitesi Mühendislik Mimarlık Fakültesi Bilgisayar Mühendisliği Bölümünde temel donanım derslerini web tabanlı olarak desteklemek ve deneysel uygulamaların altyapısını oluşturmak üzere bir çalışma amaçlanmıştır. Sanal laboratuar sitesi ile öğrenciler için ders materyalleri hazırlanmış, gerçekleştirilecek uygulamaların benzetimleri (simulation) yapılmış, konu testleri eklenmiş ve bir adet dönem sonu sınavı hazırlanmıştır. Öğrenciler web aracılığı ile ders materyallerine ulaşarak uygulamanın nasıl yapılacağını görmekte, benzetim yaparak kurulacak uygulamanın şemasını ve uygulama sonunda elde edeceği sonuçları görebilmekte, konu testleri alabilmekte ve dönem sonunda bir çevrimiçi sınav alabilmektedir. Temel donanım uygulamalarında öğrencilere faydalı olabilmek amacıyla hazırlanan bu çalışmanın uygulamaya girmesiyle birlikte, öğrencilerin derslere daha hazır gelmeleri, gerçekleştirdikleri deneylerin doğruluğunu görerek emin olmaları, hazırlanan testler sayesinde sınavlara daha iyi hazırlanmaları, geribildirimler sayesinde kendilerini daha iyi değerlendirebilmeleri hedeflenmektedir

    Sph modelling of long-term sway-sloshing motion in a rectangular tank

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    This work aims to model long-term simulations of sway-sloshing motion in a partially filled rectangular tank with different water depths and enforced motion frequencies. The lateral motion frequency of the tank is chosen so as to coincide with the lowest theoretical natural frequency for the corresponding beam of the tank and initial depth of water reserve. A truly meshless method, Smoothed Particle Hydrodynamics (SPH) is used to discretize and solve the governing equations. It is shown that numerical results of the proposed SPH scheme are in good agreement with experimental and numerical findings of the literature

    Placenta, Secret Witness of Infant Morbidities: The Relationship Between Placental Histology and Outcome of the Premature Infant

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    Objective: The microscopic and macroscopic features of the placenta can contribute to the clinical understanding of premature delivery. The aim of our study was to figure out the relationship between the histopathological findings of the placentas of premature deliveries and its effects on neonatal morbidity and mortality. Material and Method: The placentas of 284 singleton preterm infants with <35 weeks of gestation were examined. three groups created as the normal, chorioamnionitis and vasculopathy according to histopathological findings in placentas subjects. Results: The mean gestational age of the infants in the study group was 30.5 ± 3.2 weeks, and the mean birth weight was 1588 ± 581 g. The pathology was normal in ninety-six (33.8%), vasculopathy in 153 (53.9%) and chorioamnionitis in 35 (12.3%). The gestation age of the infants was lower in the chorioamnionitis group. Moreover, retinopathy of prematurity, early onset neonatal sepsis, and duration of respiratory support were found to be higher in the chorioamnionitis group. In the vasculopathy group, preeclampsia and small for gestational age were found to be significantly higher. Conclusion: Histopathological findings of the placentas from preterm deliveries provided important data in determining the etiology of preterm delivery and outcomes of infants. Infants delivered by mothers with chorioamnionitis were particularly found to be more preterm, and these preterm infants would have a longer hospital stay, higher respiratory support requirement, and more serious morbidities

    Retrospective analysis of thoracic trauma and evaluation of the factors affecting the duration of stay in the hospital

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    Background: The aim of this study is to evaluate the epidemiological and demographic features, treatment types of patients with thoracic trauma, as well as the duration of hospital stay and the factors affecting mortality.   Material and Methods: This retrospective cross-sectional study included patients who applied to the emergency room in a tertiary care hospital, between 2017–2019 and having thoracic trauma. Patients; age, gender, date of application, type of injury (blunt or penetran), arrival saturation, use of anticoagulants, type of injury, side of injury (right, left, bilateral) additional injury, hospitalization and mortality status were recorded. P &lt; 0.05 was considered as statistically significant.   Results: Total of 113 people were included in the study. The average age was 52.15 ± 20.3. The most common reason of applying to the hospital was falling with 50 patients. A negative weak correlation was found between saturation and age and hospital stay. In terms of pathology and gender, there was no statistically significant difference in mortality.   Conclusion: As a result, in this study, thoracic trauma occurs mostly in men and due to falls and motor vehicle accidents, and the majority of injuries due to thoracic trauma can heal without follow- up or tube thoracostomy

    GOPred: GO Molecular Function Prediction by Combined Classifiers

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    Functional protein annotation is an important matter for in vivo and in silico biology. Several computational methods have been proposed that make use of a wide range of features such as motifs, domains, homology, structure and physicochemical properties. There is no single method that performs best in all functional classification problems because information obtained using any of these features depends on the function to be assigned to the protein. In this study, we portray a novel approach that combines different methods to better represent protein function. First, we formulated the function annotation problem as a classification problem defined on 300 different Gene Ontology (GO) terms from molecular function aspect. We presented a method to form positive and negative training examples while taking into account the directed acyclic graph (DAG) structure and evidence codes of GO. We applied three different methods and their combinations. Results show that combining different methods improves prediction accuracy in most cases. The proposed method, GOPred, is available as an online computational annotation tool (http://kinaz.fen.bilkent.edu.tr/gopred)

    ThO2_{2}-basierte Keramik zur Fixierung von Minoren Actiniden

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    The minor actinides (Pu, Np, Am), which occur as decay products in nuclear reactors, are the most important nuclides determining the long-time risk of final disposal. Therefore after separation from the fission products the minor actinides must be finally disposed of in a safe matrix or they must be further processed as fuel. In this work, it was investigated whether these actinides can be finally disposed of as a stable component in ThO2_{2}-based ceramic. In the experimental work Ce was used as a simulator for these actinides. The source material of (Thx_{x}Ce1X_{1-X})Oy_{y} was made of Th and Ce nitrates by treatment with ammonia gas (co-precipitation). Compacts were produced from this powder after processing (drying, milling, calcination etc.) by a uniaxial hydraulic press under special conditions such as a pressure of 20-80 kN (175-900 MPa). According to a sintering program, the compacts were sintered in a furnace at 1500-1600°C. BET, DTA-TG, SEM-EDX, XRD and chemical analyses were carried out to characterise the source materials and the ceramic products. The density of the compacts was determined geometrically and that of the final products by Archimedes' method. According to the experimental results, the ceramic products (ultimate waste disposal materials) can be produced with a relative density of 80-95% of the theoretical density depending on the preparation conditions of the source material. The preparation conditions do not only influence the density but also the impurities in the product. It is assumed that these factors (calcination and milling) could play an important role in the leaching behaviour of the products. For the determination of the stability as well as the behaviour of the ceramic products in leachate media the leaching tests were performed in deionised water in a Soxhlet (dynamic) and in a sealed glass vessels (static leaching test) for a duration of 48 and 84 days. The ICPMS analyses show that the elements Ce and especially Th were found in the leachate in extremely small concentrations and that the ceramic materials produced have very good hydrolytic stability. As described in this work, the minor actinides can be finally disposed of in ThO2_{2}-based ceramic

    Efficient Implementation of Control Systems on FPGA

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