Clustering Students Based on Gamification User Types and Learning Styles

The aim of this study is clustering students according to their gamification user types and learning styles with the purpose of providing instructors with a new perspective of grouping students in case of clustering which cannot be done by hand when there are multiple scales in data. The data used consists of 251 students who were enrolled at a Turkish state university. When grouping students, K-means algorithm has been utilized as clustering algorithm. As for determining the gamification user types and learning styles of students, Gamification User Type Hexad Scale and Grasha-Riechmann Student Learning Style Scale have been used respectively. Silhouette coefficient is utilized as clustering quality measure. After fitting the algorithm in several ways, highest Silhouette coefficient obtained was 0.12 meaning that results are neutral but not satisfactory. All the statistical operations and data visualizations were made using Python programming language.Comment: 9 pages, 3 figure

How is moral hazard related to financing R&D and innovations?

This study investigates which corporate governance and firm-specific characteristics lead firms to be prone to ex-post moral hazard by misallocating the funds that they specifically borrowed for financing their R&D activities. We study 106 firms that received a specially designed loan by a Turkish government to be invested only in R&D and technological innovations. We find that as the size of the loan increases firms are less prone to moral hazard. For family firms our results support the agency theory. For large shareholders, initially our results are aligned with the agency theory but after controlling for the loan size our results hold for the stewardship theory. We also find that as amount of the loans increases relative to size of firms, the performance of projects financed by these loans plummets. Finally, we show that moral hazard related to R&D and innovation activities varies across industries.peer-reviewe

Variation in the Conventional and Banded Karyotypes among Populations of Arvicola amphibius (L., 1758) (Mammalia: Rodentia) from Turkey

Chromosomal characteristics of water voles (Arvicola amphibius) were studied in ten populations including 33 samples from Anatolia, Turkey. The C-banding pattern and NORs distribution were analysed in four samples from Eastern Anatolia. The conventionally stained karyotypes showed the standard complement of the species (2n = 36, NFa = 60-62, NF = 64-66). Variation in the number of autosomal arms originated from the alternative presence of a subtelocentric or an acrocentric autosomal pair. C-banding provided further support for differentiation of the amount and distribution of C-heterochromatin between populations from Central Europe and Asia Minor. Chromosomal variation among Turkish populations was manifested by the number of autosomal arms, positive C-bands and NOR-carrying autosomes

Comparison of the Chromosome Banding Pattern in the 2

We present the karyotype characteristics of five cytotypes of mole rats (Nannospalax) with 56 chromosomes revealed by the C-banding and AgNOR staining analyses. We attempt to investigate if the specific distinction between the populations from Thrace (N. leucodon) and Anatolia (N. xanthodon) is reflected also in their karyotypic differentiation. The specimens from each of the five populations studied revealed a distinct karyotype which was different from those found in other populations. The fundamental number of autosomal arms varied from 68 to 72. The amount of C-heterochromatin was larger in the Thrace sample of N. leucodon compared to the Anatolian population of N. xanthodon. The active NOR sites were recorded on five autosomal pairs in N. leucodon, whereas only three or four pairs bearing NOR were observed in N. xanthodon. Differences between the studied populations were quantified in the analysis of the distribution pattern of the C-positive bands and the AgNOR sites in individual chromosomes which indicated a basal position of the Thrace sample of N. leucodon and its divergence from other studied populations. The karyotypes of the 56-chromosome populations of N. leucodon and N. xanthodon are thus distinctly different

A new chromosomal race (2n=44) of Nannospalax xanthodon from Turkey (Mammalia: Rodentia)

This study was supported by Omer Halisdemir University (FEB2011/35, FEB2013/01)A new karyotype for blind mole rats was recorded in Tunceli province in Eastern Turkey. The karyotype contained 44 chromosomes, including 13 biarmed pairs, 7 acrocentric pairs, and one heteromorphic pair with a submetacentric and an acrocentric homologue in the autosomal complement (FNa=69). The X chromosome was submetacentric and the Y chromosome medium-sized subtelocentric (FN=73). Distinct dark centromeric C-bands were observed on most of the biarmed and three pairs of the acrocentric autosomes. The NORs were detected on short arms of three subtelocentric pairs and one acrocentric pair of autosomes. The diploid number of chromosomes and the karyotype characteristics observed are obviously unique among hitherto studied populations of blind mole rats and the complement can be evaluated as a new chromosome race of Nannospalax xanthodon. The distribution ranges of individual chromosome races of the species recorded in Eastern Anatolia are revised and possible interracial hybridization is discussed in respect of the finding of a new race

Evaluation of the Apolipoprotein B R3500Q Gene Mutation in Nonvalvular Atrial Fibrillation with Ischemic Stroke in Turkish Population

29th Turkish Cardiology Congress of the Turkish-Society-of-Cardiology (TSC) with International Participation -- OCT 26-29, 2013 -- Antalya, TURKEYWOS: 000329858400355…Turkish Soc Cardio

Plasma lipoprotein(a) levels in patients with slow coronary flow

WOS: 000327688400001PubMed ID: 24570746Introduction: Slow coronary flow (SCF) is a microvascular disorder characterized by delayed opacification of coronary vessels with normal coronary angiogram. It may be due to endothelial dysfunction and diffuse atherosclerosis. Lipoprotein(a) [Lp(a)] is related to cardiovascular events. Plasma Lp(a) levels have not been studied previously in SCF patients. Aim: We investigated plasma Lp(a) and fibrinogen levels, and their relation to coronary flow rate in patients with SCE Material and methods: This cross-sectional study included 50 patients with SCF and 30 age- and sex-matched controls who had normal coronary arteries and normal flow. Coronary flow rates of patients and controls were counted with the thrombolysis in myocardial infarction (TIMI) frame count. Plasma Lp(a) and fibrinogen levels were measured in SCF patients and controls, with routine biochemical tests. Results: There were no significant differences between the two groups with respect to plasma Lp(a) (21 mg/dl vs. 14 mg/dl, p = 0.11) and fibrinogen (278 mg/dl vs. 291 mg/dl, p = 0.48) levels. The TIMI frame count was not correlated with plasma Lp(a) (r = 0.13, p = 0.25) or fibrinogen (r = -0.14, p = 0.28) levels. Conclusions: Our results show that there is no significant association between SCF and Lp(a) and fibrinogen levels

Redescription and New Host Record of \u3ci\u3eEimeria serbica\u3c/i\u3e from the Caucasian Tree Squirrel, \u3ci\u3eSciurus anomalus\u3c/i\u3e, from Turkey

Fecal samples from 20 Caucasian tree squirrels, Sciurus anomalus (Gmelin, 1778) Güldenstaedt, 1785, were collected in Turkey during February and March, 2004, and all 20 were infected with a single species of coccidia, Eimeria serbica. Sporulated oocysts are ellipsoidal, 27.5 × 17.5 (21–34 × 15–20) with a length:width ratio (L/W) of 1.6 (1.4–1.8); they lack a micropyle and oocyst residuum, but 0–2 polar granules may be present. Sporocysts are ellipsoidal, 11.9 × 6.9 (10.5–14 × 6–7.5) with a L/W of 1.7 (1.5–2.1); a Stieda body and sporocyst residuum are present

Türkiye' deki Sciurus anamalus' un Taksonomik ve biyolojik özelliklerine katkılar (Mammalia: Rodentia)

Bu araştırma 1997 ve 2002 yılları arasında Konya, Karaman, Kütahya ve Çorum'dan toplanan 62 Sciurus anomalus örneğine dayanmaktadır. Türün bazı ekolojik ve biyolojik özellikleri ile ilgili olarak habitat, yuva yeri, kürk rengi, baculum ve phallus'u incelendi. Bu türde kromozom sayısı (2n) 40 olarak bulundu. Sciurus anomalus'un taksonomik değerlendirmesi için örneklerin morfometrik verileri kullanıldı. Örnekler, ilgili literatürle karşılaştırılarak alttür seviyesinde tartışıldı ve örneklerimizin nominatif alttürü temsil ettiği sonucuna varıldı.This study is based on 62 Sciurus anomalus specimens obtained from Konya, Karaman, Kütahya and çorum provinces between 1997 and 2002. Some ecological and biological features of the species, including habitat, nest-sites, fur colour, baculum and phallus were investigated. In this species, the chromosome number (2n) is 40. For the taxonomical evaluation of Sciurus anomalus, morphometric data of the specimens were used. The specimens were discussed at the subspecies level, comparing to the relevant literature, and it was concluded that our specimens represent the nominate form