Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Bulut, Hasan(53)
- Baskonus, Haci Mehmet(52)
- Alataş, Mevlüt(39)
- Gul, Muhammet(39)
- Serdar, Osman(38)
- Güler, Ömer(37)
- Akkurt, Nevzat(31)
- Benzer, Fulya(30)
- Sulaiman, Tukur Abdulkadir(29)
- Yucesan, Melih(29)
- Zengin, Gokhan(29)
- Kocabaş, Mehmet(28)
- Topal, Murat(26)
- Batan, Nevzat(25)
- Kök, Mediha(25)
- Ezer, Tülay(24)
- Paksoy, Mehmet Yavuz(24)
- Yildirim, Ozal(23)
- Tekin, H.O.(22)
- Utku, Anıl(22)
- ALMisned, Ghada(21)
- Ince, Muharrem(21)
- Öbek, Erdal(21)
- Erten, Fusun(20)
- Aslan, Naim(19)
- Celik, Erkan(19)
- Yildirim, Numan(19)
- Cakilcioglu, Ugur(18)
- Dal, Murat(18)
- Dal, Nursel Alp(18)
- Sahin, Kazim(18)
- Özkaynak, Fatih(18)
- Aslan, Alper(17)
- Erata, Hüseyin(17)
- Orhan, Cemal(17)
- Ergen, Burhan(16)
- Tanyol, Mehtap(16)
- Demir, Yakup(15)
- Etli, Serkan(15)
- Işık, Erdem(15)
Yayınlar
- MakaleAçık Erişim2021Öküzgözü ve Boğazkere Üzüm Çeşitlerine Ait Çekirdeklerin Yağ Asit Kompozisyonu Bakımından Karşılaştırılması
Aydın, Sevinç; Karaca Sanyürek, Nesrin; Aritürk, Necmi
Bu çalışmada, Elazığ bölgesinde yetiştiriciliği yapılan Öküzgözü ve Boğazkere üzüm çeşitlerinin çekirdek yağlarının kalite kriterlerinin belirlenmesi, yağ miktarı ve yağ asit kompozisyonu bakımından karşılaştırılması amaçlanmıştır. Üzüm çekirdekleri doymamış yağ asitleri ve fenolik madde içerikleri bakımından oldukça zengindir. Bu özelliklerinden dolayı yemeklik yağ olarak kullanılabileceği düşünülmektedir. Çalışma, yöresel ticari olarak yetiştirilen iki kırmızı üzüm çeşidi olan Öküzgözü ve Boğazkere çekirdekleri kullanılarak gerçekleştirilmiştir. Bu iki üzüm çeşidi, genellikle şaraplık olarak kullanılmaktadır. Şarap üretiminin yan ürünü olan üzüm çekirdeklerinin değerlendirilmesine olan ilgi son zamanlarda giderek artmaktadır. Tanımlanan yağ asitlerinin miktarları üzüm çeşitlere göre değişmektedir. Yaptığımız analizler sonucunda çekirdek yağlarının yağ asidi kompozisyonu; Miristik asit (0.36±0.02), Palmitik asit (20.45±0.67) ve Palmitoleik asit (5.80±0.10) miktarları karşılaştırıldığında, Boğazkere üzümlerine ait çekirdeklerde, Öküzgözü üzümlerine ait çekirdeklerden daha yüksek oranlarda tespit edilmiştir. Stearik asit (1.15±0.03), Oleik asit (19.40±0.4), Linoleik asit (54.75±0.69), α-linoleik asit (0.07±0.02) ve Gama-linolenik asit (0.24±0.01) miktarları karşılaştırıldığında ise Öküzgözü üzümlerine ait çekirdeklerde, Boğazkere üzümlerine ait çekirdeklerden daha yüksek oranlarda tespit edilmiştir.
AtıfOpenAlex3TR Dizin1
İncele - MakaleAçık Erişim2021Comparison of Current Metaheuristic Optimization Algorithms by Using Benchmark Functions
Kızıloluk, Soner; Can, Umit
There are dozens of metaheuristic optimization methods inspired by the swarm behaviors of creatures in nature, plants, human-specific phenomena, events in scientific fields such as physics, mathematics, biology and chemistry. These methods are successful in certain problems but not in all problems. Therefore, new metaheuristic methods are suggested by researchers frequently. In this study, for the first time, six up-to-date metaheuristic optimization algorithms, namely Jellyfish Search Optimizer, Carnivorous Plant Algorithm, Giza Pyramids Construction Algorithm, Gradient Based Optimizer, Student Based Psychology Optimization and Tunicate Swarm Optimization, were compared by using 10 mathematical benchmark functions with 10, 30 and 50 dimensions. According to the results obtained, Student Based Psychology Optimization gave the best results in 7 out of 10 benchmark functions. It was observed that Gradient Based Optimizer gave the best results in 4 benchmark functions. Carnivorous Plant Algorithm and Tunicate Swarm Optimization showed the worst performance. In order to compare in terms of time, algorithms were run at 1000 iterations in 50- dimensional benchmark functions. When the average run times obtained are examined, it is seen that Jellyfish Search Optimizer and Tunicate Swarm Optimization are the fastest running algorithms. Carnivorous Plant Algorithm and Student Based Psychology Optimization were the slowest running algorithms.
AtıfOpenAlex3TR Dizin3İncele - MakaleAçık Erişim2021The Investigation of Production Errors and Remedies Arising from the Mold and Material Used in the Plastic Injection Production Line
Taşgın, Yahya; Gökkoruk, Ali
Plastic injection molding is widely used in all areas of the industry. The most important reason for this is that seamless plastic products in desired shapes and sizes can be easily produced with injection molds. Plastic products are exposed to many different parameters during molding. Therefore, it is aimed to create correct production methods by seeing the effect of molding parameters. The purpose of this study was to determine the fast and correct method and minimizing the errors by detecting the manufacturing defects that may occur during the production of materials with different properties with plastic injection machines beforehand. As a result of this study, the problems caused by the air remaining in the mold during the production phase, the problems caused by the turbulence that may occur during the flow of the liquid raw material, the problems that occur in the areas where the flow paths overlap, the reasons for product loss, especially in thin-section parts, the adhesion of the part to the female mold, the product with burr, as well as problems such as distortion and gaps were determined and solutions were provided.
AtıfOpenAlex2TR Dizin1İncele - MakaleAçık Erişim2021PLC ve SCADA Kullanılarak Bir Orcik Üretim Sisteminin Otomasyonu
Gencer, Cetin; Üstündag, Aybıke
Orcik, Elazığ yöresinde üzümden ya da duttan elde edilen şıranın un ve özel bir toprakla bulamaç haline getirilipceviz dizili ipin bu bulamaca istenilen kalınlığa göre bir veya daha fazla kez batırılıp güneşte kurutulmasıyla elde edilenyöresel bir üründür. Bu çalışmada, Türkiye'de tüketiminin yanısıra Avrupa ülkelerine de ihraç edilen orciğin fabrikaotomasyon sistemi ile üretimine yönelik bir benzetimi yapılmıştır. Doğal klasik yöntemlerle üretilen orciğin her birüretim aşaması ele alınarak Programlanabilir Mantıksal Denetleyici (PLC) otomasyon sistemi ile tasarımı yapılmış veSCADA üzerinde benzetimi gerçekleştirilmiştir. Elektrikli makineler, hızla büyüyen otomasyon hızının bir sonucuolarak sektörün bir parçası haline gelmiştir. Geleneksel endüstriyel işlemler makinelerin manuel çalıştırılmasıyla olur vebu işlemler manuel müdahaleye bağlıdır. Bu süreç zaman alıcı ve pahalıdır. Endüstrilerdeki yönlendirme görevlerininotomatikleştirilmesi verimliliği arttırır. Minimal insan müdahalesiyle PLC gibi otomasyon araçları kullanılaraktekrarlayan sürecin otomasyonu, geliştirilmiş verim, azaltılmış işletme maliyetleri, geliştirilmiş üretim hacimleri, dahaiyi kalite kontrol ve endüstriyel güvenlik sağlanır. Tasarlanan sistemle, orcik üretiminin klasik yöntem yerine PLCtabanlı otomasyon sistemine geçişi amaçlanmıştır.
- MakaleAçık Erişim2021Factors Affecting Parental Mediation Strategies in Children’s Technology Use: A Systematic Review
Kurşun, Engin; Turgut, Yiğit Emrah; Aslan, Alper; Alkan, Rabia Üstündağ
Parents raise their children by using their own social, cultural, and financial resources. With the development of technology, parents started guiding their children in digital environments. In other words, parents attempt to regulate their children’s use of media while maximizing the benefits of media-rich digital environments for their children. This study aimed to examine, evaluate, and interpret the factors affecting parental mediation strategies through meta-synthesis method. A total of 16 studies were reviewed. The results revealed that demographic characteristics including age, gender, educational level, and socio-economic status, use of technology, parents’ attitudes and perceptions towards technology are the critical factors influencing parental mediation strategies.
AtıfOpenAlex22TR Dizin1İncele - MakaleAçık Erişim2021Grafen Katkılı Nişasta Filmlerinin Dielektrik Özelliklerinin Geniş Frekans Aralığında İncelenmesi
Torgut, Gulben; Gürler, Nedim
Bu çalışmada, gliserol ile plastikleştirilmiş patates nişastası (PN) filmlerine, farklı oranlarda (% 0.5, 1, 2) grafen (G) eklenerek döküm yöntemi ile hazırlanmış filmlerin dielektrik sabiti, dielektrik kayıp ve kayıp tanjantı gibi bazı dielektrik özelliklerinin frekansla değişimleri incelendi. PN’nın saf hali ve G ile hazırlanmış kompozitlerinin (PNG0.5, PNG1 ve PNG2) dielektrik sabiti (έ), dielektrik kayıp faktörü (ε՛՛) ve kayıp tanjantı (tanδ) değerleri oda sıcaklığında frekansın bir fonksiyonu olarak (100 Hz ile 10 kHz arasında) empedans analizör cihazı ile belirlendi. Nişastanın 1 kHz sabit frekans ve oda sıcaklığındaki dielektrik sabiti, dielektrik kayıp ve kayıp tanjantı değerleri sırasıyla 9.20, 4.45 ve 0.48 olarak bulundu. Ayrıca, farklı oranlarda G miktarının (ağırlıkça %0.5, %1 ve %2) filmlerin dielektrik özellikleri üzerindeki etkisi araştırıldı. G konsantrasyonu arttıkça dielektrik sabiti, dielektrik kayıp ve kayıp tanjantı değerlerinde, saf nişastaya göre önemli artış olduğu gözlendi.
AtıfOpenAlex2TR Dizin1İncele - MakaleAçık Erişim2021Reuse of Industrial Metal Wastes as Partial Replacement of Aggregates in Mortar Production
Gülmez, Nihan
Sustainable waste management is becoming more and more important in the construction industry due to increasing waste costs as well as environmental effects. As a result of increasing level of wastes and environmental damage, the use of these wastes has become the focus for beneficial construction activities and sustainable industrial applications. This study presents experimental results on the effect of industrial wastes on the performance of cementitious mixtures. The scope of this study, therefore, was to assess the effect of waste aluminium on physical and mechanical properties of cement based mixtures prepared in different compositions. Consistency, bulk density, porosity, absorption, flexural and compressive strength tests were carried out on mixtures produced by using waste aluminium aggregates in different percentages instead of fine aggregate. Results showed that mixtures prepared with 4% aluminium aggregates had the highest water absorption and porosity. With the addition of %1 lathe waste, it was observed that the flexural behavior of mortar was maximum and the optimum percentage for flexural strength was noted. In addition, when mixtures produced with the same percentage of aluminium were compared, the amount of binder played a significant role on both compressive and flexural strength. Results have shown that to incorporate aluminium into mixtures can be a suitable solution for recycling in industrial applications.
AtıfOpenAlex5İncele - MakaleAçık Erişim2021Gama Işımasının Kolza Takviyeli Polipropilen Kompozit Malzemenin Mekanik Özellikleri Üzerindeki Etkisi
Kismet, Yilmaz; Doğan, Akar
Bu araştırmada, kurutulmuş ve toz haline getirilmiş kolza bitkisi takviyeli polipropilen matrisli kompozit malzemenin, çekme, üç nokta eğilme ve Izod darbe mukavemetleri gibi mekanik özellikleri deneysel olarak incelenmiştir. Öncelikle matris malzemesi polipropilen olan ve ağırlıkça %5, %10 ve %20 oranında kolza içeren numuneler ekstrüzyon ve plastik enjeksiyon teknikleri kullanılarak üretilmiştir. Üretilen malzemelerin bir kısmı gama ışımasına tabi tutularak matris ve dolgu malzemesi arasındaki fiziksel bağlanma mekanizması güçlendirilmeye çalışılmıştır. Bu doğrultuda ışıma öncesi ve ışıma sonrası numunelerin mekanik özelliklerindeki değişimler araştırıldı. Yapılan testler sonucunda, çekme ve Izod darbe mukavemetleri, takviye olarak kullanılan kolza miktarının artması ile düştüğü, eğilme mukavemetinin ise arttığı gözlenmiştir. Gama ışımasına maruz bırakılan numunelerin çekme, eğilme ve Izod darbe mukavemetlerinde gama ışımasına maruz bırakılmamış numunelere göre artış meydana geldiği tespit edildi.
AtıfTR Dizin1İncele - MakaleAçık Erişim2021Some Growth Parameters of Capoeta umbla (Heckel, 1843) Population Living In The Pülümür River
Serdar, Osman; Ozcan, Ebru Ifakat
In this study, some growth parameters have been investigated like sex distribution, length and weight relationship, age determination, von Bertalanffy growth parameters and condition factor of Capoeta umbla (Heckel, 1843) (644 female, 743 male) captured from Pülümür River between 2017 and 2019. Females varied from 7.1 to 38.8cm in total length and 3.4 to 514.2 g in weight. Males varied from 7.3 to 38.3cm in total length and 3.5 to 450.4g in weight. The sex ratio (females/males) for C. umbla was 1:1.154. The age groups for C. umbla was 0-11. The von Bertalanffy growth parameters were determined as Lt=49.25[1-e-0.128(t+1.68)]; Wt=666.91[1-e-0.128(t+1.68)]2.973 for female, Lt=44.42[1-e-0.155(t+1.37)]; Wt=735.19[1-e-0.155(t+1.37)]2.954 for male and Lt=45.29[1-e-0.146(t+1.42)]; Wt=772.56[1-e-0.146(t+1.42)]2.963 for all individuals. The growth performance index (Ф') value was determined as 2.476. The length and weight relations of C. umbla were found as W=0.0096*L2.973, R2=0.97 (95 % CI of b=2.773-3.139) for females; W=0.0103*L2.954, R2=0.98 (95 %CI of b=2.797-3.092) for males and W=0.0100*L2.963, R2=0.98 (95 %CI of b=2.773-3.139) for all individuals. The growth type of C. umbla was isometric for all individuals (R=0.99, R2=0.97, F1,1385=51700.4, P
AtıfOpenAlex6TR Dizin4İncele - MakaleAçık Erişim2021Numerical Investigation of the Effect of Using Nanofluids on Thermal Performance in an Energy Storage Pipe
Bayrak, Fatih; Işık, Erdem; Uçar, Aynur; Bakır, Eda
Considering the advances in technology, new approaches and heatsinks with good thermal performance are needed to achieve the efficiency and reliability expected from high-efficiency electronic devices. In this numerical study, an aluminum pipe with the same hydraulic diameter, channel length and cross-section geometry was used. To increase the heat transfer rate of the system; Al2O3/water nanofluids with water, 1% and 2% concentrations were used in the pipe, and a 5mm thick RT25HC phase change material (PCM) was used on the outer surface of the pipe. The fluids passed through the aluminum pipe were analyzed using the ANSYS 20.2 package program at four different speeds and four different Reynolds numbers. According to the results obtained, the mass melting ratio and Nusselt number were calculated for each fluid. When the results obtained from the study were examined, it was seen that the best Nusselt and liquid fraction was Reynolds 1500 and 2% Al2O3/water. For all refrigerants, it was concluded that the mass melting rate of the refrigerants and the Nusselt number increased with the increase of the fluid velocity.
- MakaleAçık Erişim2021Antibacterial and Antifungal Features of Centaurea urvillei DC. subsp. urvillei that is herboized in Turkey
Cakilcioglu, Ugur; Sönmez, Pınar Erecevıt
Although there are many studies on the activities of different species, the compounds and effects of Centaurea L., the largest genus of the Turkish flora, on human health, no relevant studies have been conducted on the antimicrobial properties of the usable parts (above ground leaves, flowers) of C. urvillei DC. subsp urvillei against pathogenic microorganisms.This study aimed to show whether it prevents the growth of these microorganisms that cause infectious diseases in humans on bacteria, yeast, dermatophytes that cause infectious diseases in humans via well agar and microdilution method by applying a methanol solution of the usable parts of C. urvillei DC. subsp. urvillei. Regarding the antimicrobial susceptibility results, the plant solution formed a generally sensitive inhibition zone (14.66 mm-11.66 mm inhibition zone-1 diameter) on inhibition of growth of yeast, dermatophyte isolates and other bacteria. This means that 40 mg dose of C. urvillei DC. subsp. urvillei has antibacterial and antifungal that can prevent the growth of all test microorganisms (Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 29213, Enterococcus faecalis ATCC 29212, Klepsiella pneumoniae clinical isolate, Candida albicans RSKK 02007, Candida glabrata RSKK 014019, Candida tropicalis RSKK 02011, Epidermophyton floccosum RSKK 14024, Trichophyton rubrum RSKK 03022) that cause disease. It is seen when we compared with the control group that there was no significant difference in bacteria, however, a significant difference was observed in yeast and dermatophytes (p
AtıfOpenAlex2TR Dizin1İncele - MakaleAçık Erişim2021Voltammetric Determination of Pendimethalin with Nafion-Graphene Modified Glassy Carbon Electrode
Koçak, Berna; Çelikkan, Hüseyin
In this study, the voltammetric behavior of pendimethalin was investigated at a glassy carbon electrode (GCE) and a nafion-graphene\rmodified glassy carbon electrode (n-GR/GCE). The electrochemical characterization of pendimethalin was carried out using cyclic\rvoltammetry (CV) technique. For the determination studies performed with GCE, the differential pulse voltammetry (DPV) technique\rwas employed, while the differential pulse adsorptive stripping voltammetry (DPAdSV) method was used for the determination\rstudies with n-GR/GCE. First of all, optimal experimental conditions were established for both electrodes, a calibration curve was\rplotted and linear working ranges were identified. For the 1st peak current of pendimethalin, the working range of the calibration\rcurve drawn by DPV technique with GCE was 1.56×10-6-1.08×10-3 M with the limit of detection (LOD) value calculated as 3.09×10-5\rM. For the 2nd peak current of pendimethalin, the working range of the calibration curve created by DPV technique with GCE was\r1.56×10-6-9.73×10-4 M and the LOD value was found to be 3.36×10-6 M. For the 1st peak current of pendimethalin, the working range\rof the calibration curve constructed by DPAdSV technique with n-GR/GCE was determined to be 1.76×10-6-4.01×10-4 M with the\rLOD value being 8.69×10-6 M. For the 2nd peak current of pendimethalin, the working range of the calibration curve obtained by\rDPAdSV technique with n-GR/GCE was 1.96×10-9-7.53×10-4 M with the LOD value calculated as 1.05×10-9 M.
AtıfOpenAlex2İncele - MakaleAçık Erişim2021Türkiye’de Endüstri 4.0 Döneminde Reklamcılığın Yol Haritasına Yönelik Bir Çalışma
Coskun, Engin; Şener, Betül Çepni
Sanayileşme süreçleri teknolojinin gelişimi ile birlikte belirli periyotlar halinde gelişim ve değişim göstermektedir. Günümüzde yapay zekaya sahip makinelerin var olduğu, ileri seviyelerde bağlantısallığın sağlandığı, yapay zeka, büyük veri, nesnelerin interneti, ileri teknoloji video teknolojilerinin kullanılmakta olduğu bir dönem olan Sanayi 4.0 kavramından söz edilmektedir. Bu teknolojilerin gelişim göstermesi ile insanoğlu daha önceki sanayi dönemlerinde olduğu gibi üretim sektöründen hizmet sektörüne teknoloji transferi sağlamaktadır. Bu dönemde endüstride geliştirilen teknolojiler reklamcılık alanında da uygulanmaya başlanmıştır. Reklamcılık alanına yeni teknolojilerin girmesiyle birlikte reklam teknolojilerinde, reklam türlerinde, reklam medyasında, reklam yöntemlerinde ve reklamın uygulama alanlarında inovatif değişiklikler beklenmektedir. Bu araştırmada da endüstri 4.0 ile birlikte anılan teknolojilerin reklamcılık endüstrisini nasıl değiştireceğini ve geliştireceğini öngörerek, geleceğe yönelik bir yol haritası oluşturulması hedeflenmektedir. Bu kapsamda, yol haritasının oluşturulabilmesi amacıyla reklam uzmanlarından üç aşamadan oluşan Delphi anketi yöntemi kullanılarak veri toplanmıştır. Çalışma kapsamında elde edilen veriler ile reklamcılık alanında endüstri 4.0 ile yaşanan gelişmelerin yansımalarına değinilmiş ve reklamcılığın gelecek yol haritası oluşturulmuştur. Bu doğrultuda yaşanacak değişimlerin reklam endüstrisinde teknolojik altyapıya uyum ve tüketicilerin değişen ihtiyaç ve beklentilerine yanıt verme konuları olduğu sonucuna varılmıştır. Çalışma çıktılarının reklam profesyonelleri ve uygulayıcılarının gelecekteki değişikliklere hazırlanmasına yol gösterici olması ve geleceğin reklam araştırmalarına ışık tutması beklenmektedir.
AtıfOpenAlex1TR Dizin2İncele - MakaleAçık Erişim2021Detection of circuit components on hand-drawn circuit images by using fasterR-CNN method
Köseoğlu, Murat; Günay, Mıhrıban
In this study, one of deep learning methods, which has been very popular in recent years, is employed for the detection and classification of circuit components in hand-drawn circuit images. Each circuit component located in different positions on the scanned images of hand-drawn circuits, which are frequently used in electrical and electronics engineering, is considered as a separate object. In order to detect the components on the circuit image, Faster Region Based Convolutional Neural Network (R-CNN) method is used instead of conventional methods. With the Faster R-CNN method, which has been developed in recent years to detect and classify objects, preprocessing on image data is minimized, and the feature extraction phase is done automatically. In the study, it is aimed to detect and classify four different circuit components in the scanned images of hand-drawn circuits with high accuracy by using the Python programming language on the Google Colab platform. The circuit components to be detected on the hand-drawn circuits are specified as resistor, inductor, capacitor, and voltage source. For the training of the model used, a data set was created by collecting 800 circuit images consisting of hand drawings of different people. For the detection of the components, the pretrained Faster R-CNN Inception V2 model was used after fine tuning and arrangements depending on the process requirements. The model was trained in 50000 epochs, and the success of the trained model has been tested on the circuits drawn in different styles on the paper. The trained model was able to detect circuit components quickly and with a high rate of performance. In addition, the loss graphics of the model were examined. The proposed method shows its efficiency by quickly detecting each of the 4 different circuit components on the image and classifying them with high performance.
AtıfOpenAlex8TR Dizin1İncele - MakaleAçık Erişim2021The Use and Importance of Action Research in Education
Taş, Muhammed; Karatay, Mahmut
In this study, The “Action Research” which enables the teacher to provide reflective evaluation of learning\rmethods, to exchange ideas with stakeholders and to provide diversity, to develop alternative strategies\rand programs to learning strategies, to create the school culture and climate, and to solve a problem\rwith his own resources, has been introduced. The action research, which is one of the scientific research\rmethods that are frequently used in the field of education, is accepted as a general qualitative research\rthat the participation is preliminary, but it is seen that quantitative research methods and techniques\rare also used. The action research, designed and implemented by practitioners, offers new opportunities,\respecially for teachers to solve problems and reflect on it in class, using different assessment techniques\rto improve and improve their work. For this, administrators and teachers need to constantly research\rand evaluate research-based teaching practices used in classrooms to improve student learning. This\rstudy also discusses the historical development, purpose and features of the action research as a research\rmethod, its steps, data collection methods and techniques, its benefits, its use in teaching and examples.
AtıfOpenAlex6TR Dizin5İncele - MakaleAçık Erişim2021A Scale Development Study Intended for Mathematics Teacher Candidates: Mathematical Visualization Perception Scale
Ilhan, Aziz; Tutak, Tayfun
The aim of this study is to develop a valid and reliable measurement tool that measures mathematical visualization perceptions for mathematics teacher candidates. Therefore, the type of study is a survey research. Research was carried out with 462 (336 Female, 125 Male) mathematics teacher candidates from a university located in the Eastern Anatolia region Turkey in 2018-2019 spring season. Exploratory and confirmatory factor analyzes were performed for the analysis of research data. In the process of development of Mathematical Visualization Perception Scale (MVPS); the preparation of the pool of material, testing of the validity of the scope and appearance, conducting the trial application, ensuring the construction validity, calculating the reliability and establishing the final scale were followed. As a result of the exploratory factor analysis, a valid and reliable 5-point Likert-type scale consisting of 42 items, with 6 factors [Additional Drawing (AD), Spatial Thinking (ST), Direction Concept (DC), Relation with Daily Life (RDL), Transition from Algebra to Geometry (TAG) and Transition from Geometry to Algebra (TGA)] was created. Cronbach Alpha internal stability coefficient of these factors was calculated as 0.938. The factor structure of the scale was also confirmed by confirmatory factor analysis. As a result of the findings obtained, it was suggested to the researchers who will study in the related field to evaluate mathematical visualization perceptions of mathematics teacher candidates by using related scale with different sample groups or different variables.
AtıfOpenAlex3
İncele - MakaleAçık Erişim2021Determination of thermal tolerance parameters of swordtail (Xiphophorus helleri) and platy fish (X. maculatus) acclimated to different temperature levels
Yanar, Mahmut; Özdes, Ali; Erdogan, Erhan; Evliyaoglu, Ece
Thermal tolerance parameters of swordtail (Xiphophorus maculatus) and platy (X. helleri) at three acclimation temperatures were determined in the study. The CTMin values at 20, 24 and 28 degrees C acclimation temperature were 9.41,10.42 and 11.95 degrees C respectively for platy and 9.38,11.5 and 13.23 degrees C for swordtail, while CTMax values were 37.41, 39.19 and 40.52 degrees C for platy and 36.94, 38.89 and 40.07 degrees C for swordtail. Accordingly, acclimation temperature affected the lower and upper temperature tolerances of fish by 3-4 degrees C. The CTMin ARR values varied between 0.42-0.42 in swordtail and 0.20-0.34 in platy, while CTMax ARR ranged between 0.29-0.48 in swordtail and 0.33-0.44 in platy depending on acclimation temperature. Thermal tolerance polygon area of platy (232 degrees C-2) was slightly higher than that of swordtail (217.3 degrees C). The fact that both fish species have lower temperature tolerances limits their geographic distribution and aquaculture in subtropical climates where the water temperature drops to 10 degrees C in winter.
AtıfWoS2OpenAlex1İncele - MakaleAçık Erişim2021Scopus SJRQ2The Negative Perception of the Bektashi and the Kizilbash/Alevis in Literature from Nur Baba to Bektasi Kiz (1913-1945)
Çakmak, Yalcin
The Kizilbash/Alevi and Bektashi have been subject to various negative criticisms due to their beliefs outside Sunnism, the official belief system since the sixteenth century. It has been seen that the members of the two groups, whose social bases and beliefs mostly overlap, have faced several accusations because of their exclusive rituals. On that sense, this case came to be a subject matter in Ottoman official documents as well as in the texts written by the Westerners who were active in Ottoman territories. Sexual ones are foregrounded among the accusations that they were subject to owing to this exclusive structure of the Bektashi and the Kizilbash/Alevi communities. This perception of the communities in question came to be a mystery in accord with doubts put into circulation by Sunni communities especially. The growing interest of the society in this mystery were to be a subject matter of both the Ottoman literature and the literature of the Republic. Nur Baba penned by Yakup Kadri Karaosmanoglu in serials in 1913 and published into a book in 1922 was the first work upon this subject. The repercussions Nur Baba had and its content became an inspiration to following works by others. The opposition to the Bektashi and the Kizilbash/Alevi was employed in common and distinct works by Omer Seyfeddin, Peyami Safa (Server Becli) and Niyazi Ahmet Banoglu in the following years. This paper intends to chronologically study and analyse the portrayal of the Kizilbash/Alevi and the Bektashi in relation to the continuation of the negative perception in literature, starting with Nur Baba, , in Harem, Pamuk Ipligi and Bir Genc Kiz Bektasiler Arasinda and Bektasi Kiz, from the late Ottoman period to the midst of the Republic period except for Sadri Ertem's cikriklar Durunca novel.
AtıfOpenAlex4TR Dizin4İncele - MakaleAçık Erişim2021Examination of The Attitudes of Cycling Athletes' Towards Ecorecreation
Albayrak, Veysel; Gacar, Atalay; Nacar, Eyyup; Tutar, Omer Faruk
Background: It is known that people's relations with nature can be greatly influential in all periods of their lives and especially in their future, which has increased their interest in concepts such as environment, nature, natural life, ecology, ecosystem as a result of the increase in natural awareness in humans. Aim: Based on these ideas, our research aims to measure the attitudes of cycling athletes in Elazig province towards ecorecreation.. Methods: A total of 178 athletes from 242 cycling athletes, including cycling sports clubs, associations, and individual athletes in Elazig province, participated voluntarily. It consists of 31 substances and 6 sub-dimensions developed by Ayyildiz and the 'Personal Information Form' prepared by the researchers as a data collection tool. Attitude Scale Towards Ecorecreation(ASTE), which was created in a 5-point Likert type format, was used. Spss 22.00 package program was used for the analysis of the data and the level of significance was determined as p<0.05. In the study, t-test analysis was applied to determine the significance of the differences between two groups and ANOVA was applied to determine the significance between more than two groups. Pearson correlation analysis was used to determine the direction and severity of the relationship between variables. Results: As a result of the research, there was a semantic difference in the individual and environmental sensitivities of licensed cycling athletes. A significant difference was observed in the Attitudes and Behavior towards Ecorecreation sub-dimensions of the athletes who are interested in another nature sport. Conclusion: The increase in positive behaviors towards nature has clearly become clear that it is directly related to being in nature. Accordingly, researchers believe and draw attention to the fact that in order to increase the positive effect on nature, it is necessary to be intertwined with nature and to adopt it.
- MakaleAçık Erişim2021Examining Addiction Levels of Tablet, Phone, and Computer Gaming According to the Parents' Opinions of Students Participating Summer Sports Schools
Albayrak, Veysel; Gacar, Atalay; Nacar, Eyyup; Tutar, Omer Faruk
Background: The universe of the research is the athletes of summer sports schools held in Elazig in 2021. The sample consists of the mothers of 669 randomly selected athletes from sports schools. Aim: The aim of the study is to examine the levels of gaming addiction according to the parental opinions of the students participating the 2021 Elazig Summer Sports Schools. Methods: In order to determine the demographic characteristics of the participants in the study, the personal information form(gender, age, school level, mother work status, child's tablet/phone ownership status), and an 18-item scale developed by Ulusoy (2019) was used. Analysis of the data in the research and the calculation of the results found were created through statistical programs in a computer environment. Frequency (f) and percentage (%) distributions of variables were calculated. The data were checked with skewness and kurtosis tests to determine whether they were normally distributed. As a result of these tests and controls, it was determined that the data of the research was parametric. Therefore, t test and variance analysis (Anova) test were used. The error level was taken as p<0.05 in the study. Results: It was determined that there was a statistically significant difference in computer game addiction depending on the gender, mother work status and tablet/phone/computer availability of the students participating summer sports schools in Elazig province. There was no statistically significant difference in computer game addiction depending on educational status and age variables. Conclusion: In line with the study findings, it was observed that the overall average of computer game addiction levels was below average at 45.30 within the framework of the parental opinions of the students participating summer sports schools in Elazig province.
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