Story problems created by elementary mathematics teacher candidates in real-life situations: An algebra learning area example

This research aims to examine the story problems of elementary mathematics teacher candidates in the field of algebra, which are suitable for real-life situations. For this purpose, it was tried to determine the pre-service teachers' preferred grade level, sublearning area, and outcomes while creating a real-life story problem for the field of algebra learning. In addition, the relationship between story problems and outcomes, the reasons for choosing the grade level and sub-learning area, and the issues they paid attention to while creating the story problems are among the questions sought to be answered in the research. The research was designed according to the case study model. The study group the research consists of 35 elementary mathematics teacher candidates studying at the undergraduate level. 57% of the participants are female, and 43% male teacher candidates. In the study group selection, a non-random convenient sampling method was preferred. The algebra study instruction developed by the researchers was used as a data collection tool. In addition to the outcome(s) in the field of algebra learning, there are some questions that the participants should answer in the study guide. Descriptive and content analysis were used in the analysis of the data. According to the findings, most pre-service teachers were at the eighth-grade level, and inequalities created story problems suitable for a real-life situation related to the sub-learning domain. Pre-service teachers gave place to technology association in story problems. The pre-service teachers stated that they aimed to attract the students' attention and make them love mathematics while creating story problems. While creating the story problems, the most attention was paid to using actual data and originality. It has been suggested to increase pre-service teachers' awareness about the algebra learning field and encourage them to pose problems by the nature of their daily life situations

Gaziantep Tarihi Kent Merkezindeki Hanlar Bölgesinin Sorunlarının ve İşlevsel İhtiyaçlarının Belirlenmesi

Gaziantep is a city with many civilizations and cultural architectural heritage from past to present. There are historical buildings and inns area along the axis, which is declared as a cultural route, starting from the vicinity of the castle in the city centre of Gaziantep. Historical inns, which were used for accommodation and trade in the past, have lost their function over time. These inns, which cannot be used in today's conditions, were left to disappear as idle areas as the city centre lost its charm. In this study, it is aimed to identify the problems experienced in the district of inns and determine their missing functions and needs. In addition, it is desired to emphasize that the user types who use the region differ in their interpretations of the region. In line with the identified problems, suggestions were made for the revitalization of the region and the refunctioning of the inns. In order to achieve these goals, questionnaires were created in line with the interviews with the temporary and stationary users in the region and the literature review. As the scope of the study, the inns area on the Gaziantep cultural road has been examined. The questionnaires were applied to the participants in this area, by face to face interview method and the answers of the participants were noted on site. The obtained data were statistically analyzed. As a result of the research, it was concluded that the historical value of the region should be understood by the users, and in this context, the inns and other historical structures in the region should be regularly repaired and the idle areas should be re-functioned. It is thought that the revitalization of historically important buildings and the region and their sustainability are possible by determining the existing problems.Gaziantep geçmişten günümüze birçok medeniyete ve kültürel mimari mirasa ev sahipliği yapmıştır. Kent merkezinde bulunan kalenin çevresinden başlayarak kültür yolu ilan edilen aks boyunca tarihi yapılar ve hanlar yer almaktadır. Geçmişte konaklama ve ticaret amaçlı kullanılan bu hanlar zamanla işlevini kaybetmiştir. Günümüz şartlarında kullanılamayan bu hanlar kent merkezinin de cazibesini yitirmesiyle atıl alanlar olarak yok olmaya terkedilmiştir. Bu çalışmada hanlar bölgesinde bulunan sorunları tespit etmek ve eksik işlevleri, ihtiyaçları belirlemek amaçlanmıştır. Ayrıca bölgeyi kullanan kullanıcı tiplerinin bölgeyle ilgili yorumlarının farklılık gösterdiği vurgulanmak istenmiştir. Belirlenen problemler doğrultusunda, bölgenin canlanması ve hanların tekrardan kullanılması için önerilerde bulunulmuştur. Bu amaçlara ulaşmak için bölgede bulunan geçici ve sabit kullanıcılar ile yapılan görüşmelere ve literatür taramasına yönelik anket formları oluşturulmuştur. Çalışma kapsamı olarak Gaziantep kültür yolu üzeri hanlar bölgesi ele alınmıştır. Anketler bu bölgede katılımcılara yüz yüze yapılmış ve sorular tek tek kullanıcılara sorularak yanıtlar not alınmıştır. Elden edilen veriler istatiksel olarak analiz edilmiştir. Araştırma sonucunda bölgenin tarihi değerinin kullanıcılar tarafından kavranması gerektiği, bu bağlamda bölgedeki hanlar ve diğer tarihi yapıların düzenli olarak onarımlarının yapılıp, atıl alanların yeniden işlevlendirilmesi gerektiği sonucuna ulaşılmıştır. Tarihi önemi olan yapılar ile bölgenin canlandırılması ve sürdürülebilirliğinin, mevcut problemlerin tespiti ile mümkün olduğu düşünülmektedir

Bibliometric Analysis Based on Web of Science Database: Spatial Thinking, Spatial Visualization and Spatial Ability

Bu çalışmanın amacı, Web of Science (WoS) veri tabanına dayalı olarak uzamsal düşünme, uzamsal görselleştirme ve uzamsal yetenek konularında yayımlanmış makalelerin bibliyometrik analizini yapmaktadır. Bu doğrultuda, 1980 yılından günümüze 3114 makale yayınlanma yıllarına, ülkelere, WoS kategorilerine, yazarlara, kurumlara, dergilere, en çok atıf alanlara, ortak yazarlara, ortak anahtar kelimelere, kaynakça eşleşmelerine ve ortak atıflara göre incelenmiştir. Çalışmada, performans ve bilimsel alan haritalama analizleri kullanılmıştır. Verilerin elde edilmesinde Web of Science™ Core Collection veri tabanı, ağ analizlerinde ise VOSviewer programı kullanılmıştır. Çalışmanın performans analizine göre, belirlenen konulardaki makalelerin yıllara göre artış eğiliminde olduğu, Amerika Birleşik Devletleri, İngiltere ve Kanada’da daha fazla çalışma yapıldığı belirlenmiştir. WoS kategorileri içerisinden Psychology Experimental, Psychology Multidisciplinary ile Education Educational Research kategorileri ön plana çıkmaktadır. Hegarty, M., Jansen, P. ile Newcombe, N. S. yazarları belirlenen konularda daha fazla çalışma yapmıştır. Kurumlar bazında, University of California System ile Pennsylvania Commonwealth System of Higher Education Pcshe dergiler bazında Perceptual and Motor Skills ve Intelligence ön plana çıkmaktadır. Yazarlar bağlamında bağlantı gücü en fazla olan kişiler Hegarty, M. ve Newcombe, N. S. iken ülkeler bağlamında bağlantı gücü en fazla olan devletler Amerika Birleşik Devletleri ve İngiltere olmuştur. En fazla ortak anahtar kelime uzamsal yetenek olurken University of California Santa Barbara kaynakça eşleşmesinde en fazla bağlantı gücüne sahip kurum olmuştur.This study aims to conduct bibliometric analyses of published articles on spatial thinking, spatial visualization, and spatial ability based on the Web of Science (WoS) database. In this direction, 3114 articles from 1980 to the present were examined according to publication years, countries, WoS categories, authors, institutions, journals, most cited, co-authors, co-keywords, bibliographic coupling, and co-citations. In the study, performance and scientific field mapping analyzes were used. Web of Science™ Core Collection database was used to obtain data, and the VOSviewer program was used for network analysis. According to the performance analysis of the study, it was determined that the articles on the identified issues tended to increase over the years, and more studies were conducted in USA, the United Kingdom, and Canada. Among the WoS categories, Psychology Experimental, Psychology Multidisciplinary and Education Educational Research categories come to the fore. The authors of Hegarty, M., Jansen, P., and Newcombe, N. S. have done further work on the identified issues. In the context of institutions, the University of California System, and Pennsylvania Commonwealth System of Higher Education Perthe, in the context of journals, Perceptual and Motor Skills and Intelligence come to the fore. Hegarty, M. and Newcombe, N. S. had the highest linking power in the context of the authors, while the states with the most increased connectivity in the context of countries were the USA and the United Kingdom. The most co-keywords were spatial ability, while the University of California Santa Barbara had the most linking strength in bibliographic coupling

First fossil find of the Blanus strauchi complex (Amphisbaenia, Blanidae) from the Miocene of Anatolia

WOS: 000432213400008SYNTHESYS [SYNTHESYS ES-TAF-5910]; Ege University Research ProjectsEge University [TTM/001/2010, TTM/002/2011, TTM/001/2013, TTM/002/2014, 2015/Fen/17]; [TUBITAK-RFBR 111Y192]We would like to thank P. Lymberakis (NHMC), M. Calvo Revuelta (MNCN), and G. Gassner and C. Horweg (NHMW) for providing access to specimens under their care and photographs of extant specimens of Blanus spp. M. Delfino (University of Torino) provided insightful comments that enhanced the quality of the manuscript. A. Villa (University of Torino) helped with the literature. G.L.G. acknowledges travel support from SYNTHESYS (grant SYNTHESYS ES-TAF-5910) and the University of Torino. K.H., S.M., and T.K. were supported by TUBITAK-RFBR 111Y192 and Ege University Research Projects TTM/001/2010, TTM/002/2011, TTM/001/2013, TTM/002/2014, and 2015/Fen/17 during their field trips. We also thank Editor J. Head and the reviewers A. Bolet and J. Muller for their comments and help during the review process

Apical Root Resorption of Endodontically Treated Teeth after Orthodontic Treatment: A Split-mouth Study

Objective:The influence of pulp status on orthodontically induced root resorption has attracted attention. The purpose of this study was to compare orthodontically induced root resorption in endodontically treated teeth and their contralateral vital teeth in a split-mouth design.Methods:The sample included 173 patients who had at least one endodontically treated tooth, and their vital contralateral teeth served as the control group before the completion of orthodontic treatment. Apical root resorption measurements were performed by the comparison of digital panoramic X-ray images obtained at the beginning and at the end of the orthodontic treatment. Kruskal-Wallis, Mann-Whitney U, and Wilcoxon tests were used for statistical analysis.Results:There was no statistically significant difference in apical root resorption between the endodontically treated teeth and the contralateral teeth (p>0.05). Sex and tooth type had no effect on apical root resorption both in the endodontically treated teeth and the contralateral vital teeth (p>0.05). Orthodontic treatment with extraction caused more apical root resorption in the vital teeth than in the endodontically treated teeth (p0.05).Conclusion:Endodontic treatment does not produce greater apical root resorption compared with the vital teeth

Current barriers and recommendations on the diagnosis of transthyretin amyloid cardiomyopathy: a Delphi study

ObjectivesThis study has been conducted to investigate the non-invasive diagnostic journey of patients with a transthyretin amyloid cardiomyopathy (aTTR-CM) in Turkey, identify the challenges and uncertainties encountered on the path to diagnosis from the perspectives of expert physicians, and develop recommendations that can be applied in such cases.MethodsThis study employed a three-round modified Delphi method and included 10 cardiologists and five nuclear medicine specialists. Two hematologists also shared their expert opinions on the survey results related to hematological tests during a final face-to-face discussion. A consensus was reached when 80% or more of the panel members marked the “agree/strongly agree” or “disagree/strongly disagree” option.ResultsThe panelists unanimously agreed that the aTTR-CM diagnosis could be established through scintigraphy (using either 99mTc-PYP, 99mTc-DPD, or 99mTc-HMPD) in a patient with suspected cardiac amyloidosis (CA) without a further investigation if AL amyloidosis is ruled out (by sFLC, SPIE and UPIE). In addition, scintigraphy imaging performed by SPECT or SPECT-CT should reveal a myocardial uptake of Grade ≥2 with a heart-to-contralateral (H/CL) ratio of ≥1.5. The cardiology panelists recommended using cardiovascular magnetic resonance (CMR) and a detailed echocardiographic scoring as a last resort before considering an endomyocardial biopsy in patients with suspected CA whose scintigraphy results were discordant/inconclusive or negative but still carried a high clinical suspicion of aTTR-CM.ConclusionThe diagnostic approach for aTTR-CM should be customized based on the availability of diagnostic tools/methods in each expert clinic to achieve a timely and definitive diagnosis

Comparison of experimental data with results of some drying models for regularly shaped products

WOS: 000277956300009This paper presents an experimental and theoretical investigation of drying of moist slab, cylinder and spherical products to study dimensionless moisture content distributions and their comparisons. Experimental study includes the measurement of the moisture content distributions of slab and cylindrical carrot, slab and cylindrical pumpkin and spherical blueberry during drying at various temperatures (e.g., 30, 40, 50 and 60A degrees C) at specific constant velocity (U = 1 m/s) and the relative humidity phi = 30%. In theoretical analysis, two moisture transfer models are used to determine drying process parameters (e.g., drying coefficient and lag factor) and moisture transfer parameters (e.g., moisture diffusivity and moisture transfer coefficient), and to calculate the dimensionless moisture content distributions. The calculated results are then compared with the experimental moisture data. A considerably high agreement is obtained between the calculations and experimental measurements for the cases considered. The effective diffusivity values were evaluated between 0.741 x 10(-5) and 5.981 x 10(-5) m(2)/h for slab products, 0.818 x 10(-5) and 6.287 x 10(-5) m(2)/h for cylindrical products and 1.213 x 10(-7) and 7.589 x 10(-7) m(2)/h spherical products using the Model-I and 0.316 x 10(-5)-5.072 x 10(-5) m(2)/h for slab products, 0.580 x 10(-5)-9.587 x 10(-5) m(2)/h for cylindrical products and 1.408 x 10(-7)-13.913 x 10(-7) m(2)/h spherical products using the Model-II.Karadeniz Technical University [2004.112.003.01]; Turkish Republic Prime Ministry State Planning Organization (DPT) [2003K120750]; Turkish Academy of Sciences (TUBA)The authors acknowledge the financial support provided by Karadeniz Technical University Research Fund under Grant No 2004.112.003.01 and the Turkish Republic Prime Ministry State Planning Organization (DPT) under grant no 2003K120750. The second author of this article is also indebted to the Turkish Academy of Sciences (TUBA) for the financial support provided under the Programme to Reward Success Young Scientists (TUBA-GEBIT)