124 research outputs found
Problemlösen im Mathematikunterricht
No full textTopic of the diploma thesis: Problem solving in the teaching of mathematics Objective: Problem solving is a universal cognitive process and is thus essential not only in our daily lives but also in research and at school. The aim of this diploma thesis is to give an answer to the question of how different problem-solving strategies can be implemented in class. Consequently, the findings may help develop a realistic concept of teaching and practising problem-solving skills. Implementation: This diploma thesis is divided into two parts. The first one serves to provide some theoretical information on problem solving. The theory also comprises definitions from a psychological, a mathematical and a didactical point of view. Besides, there is an introduction to the problem-solving methods. The second part is the more practical part. In this section, the author analyses the results of the problem-solving tasks applied in class.eingereicht von Seval HrusticUniversität Linz 201
The virtue of justness in Orhan Kemal’s novels
No full textBu çalışma, Bursa Uludağ Üniversitesi Sosyal Bilimler Enstitüsünde Mustafa Üstünova'nın danışmanlığında Seval Yumuş tarafından hazırlanan "Kemal'in romanlarında sosyal değerler" adlı yüksek lisans tezine dayanılarak hazırlanmıştır.Kültür ve değerler, bir toplumun yüzyıllar öncesinden getirdiği ve gelecek nesillere aktardığı en önemli manevî mirastır. Kültürü ve değerleri birbirinden ayrı düşünmek mümkün olmadığı gibi bunların aktarımını doğru şekilde yapmak ve kültür ve değerleri çağın gereklerine göre revize etmek de son derece önemlidir. Değerlerin toplumlar için öneminin fark edilmesiyle son yıllarda değerler, hayatın her alanında öne çıkarılmaktadır. Edebiyatçılar ise değerleri, eserleri yoluyla geçmişten günümüze taşıyan önemli kültür ve değer aktarıcılarıdır. Türk edebiyatı yazarlarından Orhan Kemal de romanlarında pek çok değere sıkça vurgu yaparak bu konudaki hassasiyetini göstermiştir. Orhan Kemal’in, romanlarında hak değerine ne şekilde yer verdiği ise bu çalışmanın konusu olmuştur.Culture and values are communities’ most valuable moral inheritance for future generations. Culture and values are inseparable concepts which require correct propagation and revisions appropriate to the prevailing conditions of an age. With the recent recognition attributed to them, values are being promoted even more intensively. Literature is an important conveyor of culture and values in this context. The Turkish author Orhan Kemal has reflected this by repeatedly emphasizing a broad range of virtues. This work focuses on the way Orhan Kemal handles the virtue of justness in his novels
İris görüntülerinin analiziyle kimlik tanıma
No full textİRİS GÖRÜNTÜLERİNİN ANALİZİYLE KİMLİK TANIMA Günümüz teknolojisinde ek güvenlik ihtiyaçlarına cevap verebilen biyometrik sistemler, kişilerin ve biyolojik ürünlerin sahip olduğu, özgün fiziksel ve davranışsal özellikleri kullanan bir örüntü eşleme sistemidir. Biyometrik sistemler, şifre hatırlama ya da kimlik taşıma gibi ihtiyaçlara gerek duymadan, sadece kişiye ait olan özellikleri kullanır. Bu sistemler kişiye ait bilgileri kaydedip bir veritabanı oluştururlar ve daha sonra her güvenlik sorgulamasında kullanırlar. Bu tez kapsamında yaşam boyu kararlı olması, ayrıt edici özelliklerinin diğer biyometrik tekniklere göre çok daha fazla olması, iyi korunan iç organ olması,taklit edilmesinin imkansız olması,uzaktanda görülebilmesi, yüksek rastgeleliğe sahip olması, genetik benzerliğin azlığı, görüntü alınırken herhangi bir temas olmadan kolayca alınabilmesigibi nedenlerden dolayı irisi temel alan bir biyometrik tanıma sistemi üzerinde çalışılmıştır. Sistemde kullanılan veritabanındaki imgelerden iris bölgesinin elde edilebilmesi için, Canny kenar bulma algoritması ve Hough transformu kullanılmıştır. Alınan göz imgelerinde kestirilen iris imgesi kutupsal formdan dikdörtgen forma dönüştürülmüştür. Normalleştirilmiş iris deseni Gabor dalgacıkları ile konvolve edilmesiyle öznitelik çıkarım işlemi gerçekleştirilmiş ve filtre çıkışındaki gürültünün etkisini önlemek için çevrelenmiş piksellerin yoğunlukları ortalama olarak alınmıştır. Her bir fazör için iki data biti üreten her bir filtreyle faz dört seviyeye quantize edilmiştir. Son olarak eşleştirme için bitsel karşılaştırmalar gerekli olduğundan Hamming uzaklığı kullanılmıştır.Çalışma sürecinde filtrelemeler, görüntü işleme gibi kullanılan süreçlerin tümü MATLAB ortamında gerçekleştirilmiştir. Bu tez çalışmasında gerçekleştirilen sistemin performansını test etmek için ROC analizi yapılmıştır. Analiz sonuçlarına göre, geliştirilen sistem kimlik tanımlama hassasiyeti ile tatmin edici sonuç sağlamıştır.IDENTITY RECOGNITION TROUGH ANALYSIS OF IRIS IMAGES Biometric systems which can response to additional security needs in peresent technology, is an image matching systems which uses original physcal and behavioral properties of which people their biological products have. Biometric systems use only properties of person, therefore remembering password or carrying ID card is not required. These systems record the personal information and make up a database, and then used for every security inquiry. In the scope of this thesis studies have been implemented for iris recognation systems based on iris which is accepted as one of the most reliable biometric characteristics due to reasons like its highes discrimination ratio between human beings, being a well-protected internal organ, being impossible to imitate, low genetical likeness and no contact while capturing the image. Canny edge detection algorithm and Hough transform have been used in order to obtain iris recognation from the images in the database. Iris image extracted from eye. Images have been trcensformed from polar form to rectangular form. In order to obtain the iris zone from the pictures on the data base used on the system, Canny edge detection algorithm and Hough transform were used. The iris picture which was cut at received eye pictures was transformed from circular form into rectangular form. Normalized iris design was convoluted by Gabor ripples and so, self-quality deduction procedure was obtained and, in order to prevent the effect of the noise at the filter outlet, the density of the surrounded pixels was taken on an average. The phase was encoded to four levels by each filter generating two data bits for each phaser. And finally, Hamming distance was used since bit comparisons were necessary for matching. During the study, all the processes such as filtrations, picture processing etc were done at MATLAB environment. ROC analysis has been carried out in order to test the performance of the thesis study. According to the analysis reports, the developed system has been provided satisfying results through ID recognition precision
Organizational power resources and psychological capital relations in schools
No full textEğitim Bilimleri Enstitüsü, Eğitim Bilimleri Ana Bilim Dalı, Eğitim Yönetimi ve Denetimi Bilim DalıBu çalışmanın amacı, okul yöneticilerinin kullandığı güç kaynakları ile bu okullarda görev yapan öğretmenlerin psikolojik sermaye ilişkisini incelemektir. Araştırmada, tarama modeli kullanılmıştır. Okul yöneticilerinin kullandığı güç kaynağı türleriyle öğretmenlerin psikolojik sermaye düzeylerini belirlemek amacıyla, Çanakkale il merkezinde yer alan ilkokul, ortaokul ve lisede görev yapmakta olan 360 öğretmene, Yılmaz ve Altınkurt (2013) tarafından hazırlanan "Okullarda Örgütsel Güç Ölçeği (OÖGÖ)" ve Bayır(2018) tarafından Türkçe'ye uyarlanan "Psikolojik Sermaye Ölçeği (PSÖ) uygulanmıştır. Araştırma evreni Çanakkale il merkezindeki okullardan oluşturulmuştur. Araştırma örneklemi, Çanakkale il merkezinde bulunan 41 okuldan tabakalı örnekleme yöntemi kullanılarak oluşturulmuştur. Örneklemdeki okullar, sosyo- ekonomik durumları incelenerek, alt, orta ve üst olmak üzere 3 gruba ayrılan 15 okuldan oluşturulmuştur. Öğretmenler tarafından cevaplanan "Okullarda Örgütsel Güç" ve "Psikolojik Sermaye Ölçeği" veri sonuçları SPSS 18.0 programında analiz edilmiş, bu sayede okul yöneticilerinin güç kaynakları ve öğretmenlerin psikolojik sermaye düzeyleri değerlendirilmiştir. Bilgi Tanıma Formunda yer alan cinsiyet ve medeni durum değişkenlerinin örgütsel güç kaynakları ve psikolojik sermaye düzeyleriyle analizinde t- test, diğer değişkenlerin analizinde ANOVA kullanılmıştır. Örgütsel güç türünün alt boyutlarıyla ilişkisi ve güç türleriyle psikolojik sermaye boyutlarının ilişkisi için Pearson korelasyon kullanılmıştır. Psikolojik sermaye boyutlarının örgütsel güç türlerine etkisini ortaya koymak için çoklu regresyon analizi yapılmıştır. Araştırmada örgütsel güç kaynağı ve psikolojik sermayenin alt boyut ölçeklerinin nicel verilerine göre, örgütsel güç kaynağı türleri ve psikolojik sermaye boyutlarının ilişkili olduğu görülmüştür. Okul yöneticilerinin güç kaynağı türlerini kullanma durumu, öğretmenlerin demografik özelliklerine göre değişmektedir. Öğretmenlere göre, okul yöneticisinin en çok kullandığı güç kaynağı yasal güçtür. Örgütsel güç kaynağı alt boyutları ile psikolojik sermayenin alt boyutları arasında uzmanlık gücü alt boyutu ile psikolojik dayanıklılık alt boyutu haricindeki alt boyutlar arasında pozitif korelasyon görülmüştür. Öğretmenlerin psikolojik sermaye alt boyutlarının (umut, öz yeterlilik, iyimserlik ve psikolojik dayanıklılık), örgütsel güç türü değişkenlerinin (yasal güç, zorlayıcı güç, uzmanlık gücü, karizmatik güç ve ödül gücü) belirlenmesinde anlamlı bir yordayıcı olduğu sonucuna ulaşılmıştır.Purpose of this study is analyzing the relation between power resources of administrators who work at educational organizations and psychological capital of teachers who work at a state school. In this research scanning model is used. In order to determine the psychological capital levels of teachers with the power source types used by the school administrators, 360 teachers who were working in primary, secondary and high school in Çanakkale city center were prepared by Yılmaz and Altınkurt (2013). The çeği Psychological Capital Scale (PSQ) was applied to Turkish. The research sample was formed by using a stratified sampling method. 15 Schools were chosen which divided 3 groups, bottom, average and top, that are included sample was analyzed by their socio-economic status. Power resources of administrators and level's of teachers' psychological capital were evaluated by answers to "Organizational Power" and "Psychological Capital Scale" which were handed out to the teachers that entered to SPSS 18.0. When organizational power types and psychological capital's aspect variable which are sex, marital status and other variables were defined at information request form were analyzed by t-test, ANOVA was used to analyze other variables. Pearson Correlation was used to determine relations between organizational power's subdimensions and relations between power types and psychological capital's subdimetions. Multiple regression analysis was made to prove the effect of psychological capital's dimensions to organizational power types. In this study, to quantitative data of organizational power resources and psychological capital's dimension's scale, organizational power types and levels of psychological capital were ascertained as at a sufficient level. Administrators' state of using power resource types varies to teachers' demographic status. It was concluded that the teachers' psychological capital sub-dimensions (hope, self-efficacy, optimism and psychological resilience) were a significant predictor of determining the organizational power type variable (legal power, coercive power, expertise power, charismatic power and reward power
Evaluatİon of women's beliefs about pap smear screening using the health belief model scale
No full text*Bulut, Ülkü ( Aksaray, Yazar )Objective: To evaluate women's beliefs about screening Pap smear test.
Material and Method: The survey has been conducted through a questionnaire prepared by researchers, based on the Health Belief Model Scale for the Pap smear test. The participants consisted of 266 women between 18-70 years of age registered at a Family Health Center in Izmir. Their beliefs about screening Pap smear test were evaluated using the Health Belief Model Scale.
Results: The mean age of first sexual intercourse was 21.67 +/- 4.5 (min:13--max:45 years), 86.5% reported a single partner and 41.0% of them (n=109) had never undergone a Pap smear test. Women who previously had a Pap smear test had high scores of sensitivity, seriousness, advantage and motivation, health motivation subscales, but the mean scores for obstacles were low. There was a difference between seriousness, health motivation subscales and taking the Pap smear test (p=0.021, p=0.006). The Mean scores of seriousness and health motivation of Health Belief Model Scale were higher. There was no difference between education level, working status and undergoing a Pap test (p>0.05).
Conclusion: Having a Pap smear test is still moderately frequent and there are obstacles. Planning the interventions to eliminate Pap smear test barriers is an important issue for family physicians
Predictors of ADHD persistence in elementary school children who were assessed in earlier grades: A prospective cohort study from Istanbul, Turkey
No full textBackground: Attention-deficit hyperactivity disorder (ADHD) is the most common neurodevelopmental disorders among school-age children worldwide. In a more recent follow-up study, Biederman et al. found that 78% of children diagnosed with ADHD between the ages of 6-17 years continued to have a full (35%) or a partial persistence after eleven years. Objective: In this study, it was aimed to identify the factors contributing to the persistence of ADHD symptoms in elemantary school children who were prospectively assessed both in their earlier and upper grades. Methods: The sample was drawn from a previous community-based study where ADHD symptoms in 3696 first/or second graders were examined in regard to their school entry age. Two years after, the families of the children that participated in the initial study were called by phone and invited to a re-evaluation session. Among those who were reached, 154 were consequently eligible and were assessed with Swanson, Nolan and Pelham questionnaire (SNAP-IV), Conners' rating scales (CRS) and the Kiddie schedule for affective disorders and schizophrenia (K-SADS). Results: Of the 154 children, 81 had been evaluated to have probable ADHD by the initial interview. Among these 81 children, 50 (61.7%) were indeed diagnosed with ADHD after two years. Initial scores of the teacher reported SNAP-IV inattention subscale predicted the ADHD diagnosis after two years, with an odds ratio of 1.0761 (p = 0.032, Wald: 4.595). Conclusions: Our results suggest that high inattention symptom scores reported by the teacher in the earlier grades, might predict an ADHD diagnosis in upper grades. (c) 2020 The Japanese Society of Child Neurology Published by Elsevier B.V. All rights reserved
Conceptual development of ethical climate and its impacts on individuals and organizations
No full textAksoy, Seval (Dogus Author)“Örgütsel Etik İklim (ÖEİ)” kavramı özellikle 2000’li yıllarda üzerinde fazlasıyla araştırma yapılmış olan bir örgütsel davranış çalışma konusudur. Yapılan bu çalışmada, ÖEİ’nin örgütsel özdeşleşme (ÖÖ), örgütsel bağlılık (ÖB) ve kişiörgüt uyumu (KÖU) kavramlarıyla olan ilişkileri, Kocaeli’nde faaliyet göstermekte olan imalat firmalarında yapılan bir uygulamalı çalışma ile test edilmiştir. Analiz sonuçlarına göre, ÖEİ ile ÖÖ ve ÖB arasında pozitif ilişkinin bulunduğu, ayrıca ÖEİ ile ÖB ve ÖÖ arasındaki ilişkide KÖU’nun kısmi ara değişken rolü oynadığı tespit edilmiştir.The concept of “Organizational Ethical Climate (OEC)” is a subject matter of organizational attitude research study on which many researchers have been conducted so far, especially after 2000’s. In this research, relationships among OEC and organizational identification (OI), commitment (OC) and personorganization fit (POF) are analyzed through an empirical research conducted in manufacturing firms located in Kocaeli. Results indicate that there are positive relationships between OEC and OI, as well as OEC and OC, also POF mediates the relationships between OEC and OI / OC
Relationship between Oxidative Stress and Cellular Adenosine Triphosphate Levels
No full textOxidative stress (OS) refers to the deterioration of the balance between oxidants and antioxidants in favor of oxidants, and this may lead to disruptions in redox signaling and control and/or damage at the molecular level. The presence of low levels of reactive oxygen species (ROS) plays a physiological role in intracellular signaling pathways. However, damage may occur in cells and tissues as a result of excessive increase in ROS production. Because ROS have the potential to damage almost all structures in the cell, including lipid, protein, deoxyribo nucleicacid (DNA). The main source of free radicals in the cell is mitochondria. ROS formation is a natural consequence of oxidative phosphorylation resulting in adenosine triphosphate (ATP) production in mitochondria. The attack of these radicals results in damage to the mitochondria, a decrease in the activity of oxidative phosphorylation enzymes and consequently a decrease in ATP synthesis. On the other hand, ATP is needed for antioxidant synthesis, which is necessary for cell defence against increasing ROS. Therefore, a decrease in ATP levels makes tissues vulnerable to OS. In this case, it is likely that tissues exposed to OS will also have problems in ATP production and the decrease in ATP synthesis will further increase oxidative damage
ORGANIZATIONAL POWER RESOURCES AND PSYCHOLOGICAL CAPITAL RELATIONS IN SCHOOLS
No full textIn this study, the relationship between psychological capital and the power resources used by the administrator in the educational organizations is researched. In the organizations and, especially, in the educational organizations expertise, reward power, compelling power, legal power, and charismatic power are the power types that managers use and are of great importance. This affects the psychological situations of the teachers in the school organization which reflects their performance and their daily lives. In this context, studies regarding the psychological capital concept have gained pace and importance. In the study, the concepts of optimism, hope, psychological durability and self-efficacy that are the dimensions of the psychological capital are emphasized. The psychological capital concept is becoming increasingly important and it can be said that there is a mutual interaction with the organizational power concept. When the writings are scanned and examined regarding this topic, it can be said that the power and the power types used by the school administrators in the school organizations can be influential on the psychological capital dimensions of the teachers such as optimism, hope, psychological durability, and self-efficacy
ASSESSMENT OF FORAMEN MAGNUM AND CLIVUS FOR ESTIMATION OF AGE AND GENDER USING CONE-BEAM CT
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