127 research outputs found
Examining the Studies on “Digital Gaming”: A Bibliometric Analysis
No full textTRT AkademiDepending on the technological developments experienced, the importance of the concept of digitalization, which we encounter in all areas of our lives, is increasing. As a reflection of this situation, the definition of the concept of game has changed to include digital technologies. When the literature is examined, it has been determined that there is an increase in digital game-based studies. The main purpose of this research is to examine the studies on digital game in the literature by bibliometric method. Within the scope of the study, researches related to digital games were examined in terms of content and bibliometrically. As a result of the examination, the general trends in the relevant field, the authors who studied and the classification of the studies according to the years were shown with visual maps. Web of Science (WoS) was used to obtain the data. A total of 920 publications were reached in the research carried out by scanning the term Digital game. Content analysis and bibliometric analysis were used in the analysis of the data. In the research, it was concluded that the distribution of the studies in WoS by years was between 2004-2022, and the most productive author was Gwo-Jen Hwang. It has been determined that the university with the most publications on the related subject is National Taiwan University of Science and Technology, and the country with the most publications is America. According to the common word analysis, it was concluded that the most frequently repeated keyword in the studies was Digital game-based learning, and according to the common citation analysis, the most cited author was Prensky. As a result of the co-author analysis, it was seen that the authors worked in small groups and there were no multiple connections between the authors.Yaşanan teknolojik gelişmelere bağlı olarak hayatımızın her alanında karşılaştığımız dijitalleşme kavramının önemi artmaktadır. Bu durumun bir yansıması olarak da oyun kavramının tanımı dijital teknolojileri kapsayacak şekilde değişmiştir. Alan yazın incelendiğinde dijital oyun temelli çalışmalara yönelik bir artış olduğu belirlenmiştir. Bu bağlamda araştırmanın temel amacı “dijital oyun” ile ilgili yapılmış çalışmaların bibliyometrik yöntemle incelenmesidir. Çalışma kapsamında dijital oyun ile ilgili araştırmalar, içerik açısından ve bibliyometrik olarak irdelenmiştir. Yapılan incelemenin sonucu olarak ilgili alana ilişkin genel eğilimler, çalışma yapan yazarlar ve çalışmaların yıllara göre tasnifi gibi nitelikler görsel haritalarla gösterilmiştir. Verilerin elde edilmesinde, Web of Science (WoS)’tan faydalanılmıştır. “Digital game” terimi taratılarak gerçekleştirilen araştırmada toplam 920 yayına ulaşılmıştır. Verilerin analizinde, içerik analizi ve bibliyometrik analiz kullanılmıştır. Araştırmada, WoS’ta yer alan çalışmaların yıllara göre dağılımının 2004-2022 yılları arasında, en üretken yazarın ise Gwo-Jen Hwang olduğu sonucuna ulaşılmıştır. İlgili konuda en çok yayın yapan üniversitenin “National Taiwan University of Science and Technology”, en çok yayın yapılan ülkenin ise Amerika olduğu belirlenmiştir. Ortak kelime analizine göre araştırmalarda en sık tekrarlanan anahtar kelimenin “Digital game-based learning”, ortak atıf analizine göre en çok atıf alan yazarın ise Prensky olduğu sonucuna ulaşılmıştır. Ortak yazar analizi sonucunda, yazarların küçük gruplar hâlinde çalıştıkları ve yazarlar arasında çoklu bağlantıların olmadığı görülmüştü
Bibliometric Analysis Of Studies Focusing On Critical Thinking İn Early Childhood
No full textResearch on Education and PsychologyThis study aimed to examine studies on critical thinking in early childhood through bibliometric analysis. In the research, 251 studies on the concept of critical thinking were selected according to the inclusion criteria and analyzed with the VOS-viewer program. In the study, co-author, co-reference, co-citation and co-word analysis of the studies on the concept of critical thinking was carried out according to the distribution of the ten most cited authors and publications, years, published sources and countries. According to the results of bibliometric analysis on critical thinking, it was concluded that the birthplace of the subject and the most productive country is the USA. According to the co-author analysis, it was concluded that Daniel and Gagnon were the authors who contributed the most to the subject, Lipman and Kuhn according to the result of co-citation analysis, and Dovigo and Karadağ according to the result of co-citation analysis. In addition, according to co-word analysis, the most recurring keywords in the studies were critical thinking, early childhood education, creativity, early childhood, cognitive development, teacher training, preschool. As a result of the research, it was concluded that the number of studies on critical thinking in early childhood is low and there should be an increase in studies with children as the sample
Three-component velocity measurements in a momentum-conserving, axisymmetric, turbulent jet
No full textExperiments have been performed on a momentum conserving axisymmetric turbulent jet, the turbulence characteristics of which are well known [1]. Simultaneous three-component velocity measurements are acquired with high spatial and temporal resolution, using a new triple-sensor hotwire probe. Velocity and directional calibrations are performed using a dedicated automatic calibration system. Two experiments are performed; one for capturing the average velocity field in a 3D volume, and one for investigating the turbulence spectra in specific points in space. In the first experiment, measurements are performed in 9 equidistant cross-planes, from 10- to 50-diameters downstream of the nozzle using a computer-controlled traversing system. The spatial resolution is as low as 1 mm and the sampling rate was 10 kHz. In the second experiment, long velocity time histories are acquired with 50 kHz sampling rate to perform power spectral density computations for each velocity component. Preliminary results of velocity capture confirm the general characteristics of the turbulent jet. The power spectra at different positions indicate that the turbulent fluctuations are not isotropic at lower frequencies
Performance improvements for unplanned high density wireless LANs
No full textChaotic unplanned IEEE 802.11 WLAN deployments are becoming the norm and such residential deployments have many nearby access points (APs) and stations on the same channel, either due to lack of coordination or insufficient available channels. Thus, inter-cell interference in these high-density settings is common but not well-understood. Our evaluations for such interfering deployments reveal that up-to two-thirds of the WLAN system capacity may be lost in a typical large-apartment building with 50 interfering WLANs In this thesis, we first report on our analysis of high-density unplanned WLANs' performance under realistic scenarios. We find that with a typical TCP-dominant workload, cumulative system throughput is characterized by the number of actively interfering APs rather than the number of clients. We verify that due to TCP flow control, the number of backlogged stations in such a network equals twice the number of active APs. Thus, a single AP network proves very robust even with over one hundred clients, while multiple interfering APs lead to a significant increase in collisions that reduces throughput and affects multimedia traffic. Based on our analysis, we suggest a practical contention window adaptation technique, WiPhi, using information on the number of nearby APs rather than clients. We also point out the need for collision-resilient rate adaptation in such a setting. Together these techniques can largely recover the loss in cumulative throughput in a setting with strongly interfering APs. We then propose an alternative ISP-level solution, HeedNet, recovering lost performance by scheduling the IP packets of the bulk traffic at the ISP edge-router towards interfering APs. It requires no changes to the MAC protocol and the APs of the network, making it a viable solution for ISPs. We evaluate HeedNet via simulations and an actual deployment to show that a significant portion of the lost system capacity can be regained (more than 2.2X improvement compared to legacy). HeedNet also increases the fairness, reducing starvation among WLANs. Additionally, we show that HeedNet improves the performance of the non-scheduled (i.e., non-bulk) traffic considerably, such as VoIP, due to the reduced-collision rate environment it creates.Ph.D.Includes bibliographical referencesIncludes vitaby Mesut Ali Ergi
Comparative effects of calcipotriol and betamethasone 17‐valerate solution in the treatment of seborrhoeic dermatitis of the scalp
No full textThe role of texture evolution and strain hardening on the anisotropic response of polycrystalline metals:
No full textAnisotropy and texture plays an important role in deformation of Aluminum alloy sheets. The development of anisotropy during metal forming is a key factor as in the standard industrial use of AA-6022 as stamped automotive body enclosures where a close estimation of anisotropy can deduct costs on both machinery and inventory. In this thesis, we provide a methodology to predict the anisotropic behavior of polycrystalline metals depending on its processing history. The methodology suggested is based on single crystal plasticity model of Cuitino and Ortiz where the mechanics of dislocation motion through forest dislocations is estimated statistically. In that context, we first study the role of uncertainties and responses of the initial parameters such as initial yield stress and dislocation density. R-values, which is a measure of anisotropy, of a sample undergone hydraulic bulge test are obtained by a uniaxial tensile test simulation and found to be in good agreement with the experimental
findings. An optimization method to capture the texture while reducing the number of orientations is introduced and compared with random sets of orientations. Gradual work hardening effect is captured by adjusting the dislocation density carried over through consecutive simulations of rolling and uniaxial stretching. However more accurate models of rolling simulations is necessary to provide r-values and work hardening effect without the need of texture.M.S.Includes bibliographical references (p. 2-5)by E. Alisar Tunce
Negotiating participation : vulnerable children in family law proceedings
No full textDrawing upon a Swedish study of vulnerable children as social actors in family law proceedings this paper explores how children themselves approach and negotiate the issue of participation. The discussion is based upon thematically structured interviews with children whose father has been violent to their mother and who have met with social workers in the context of a legal dispute about custody, residence or contact. The analysis reconstructs how these children have dealt with encounters with social workers and to what extent they used the space for action they perceived that they had. What children are doing in this situation – that they all are somehow prepared for– can be seen as intentional at least to some extent. Therefore the concept of strategy seems appropriate: actions and non-action are chosen for a purpose. Children’s strategies are outlined and it is discussed how different child strategies may be linked to children’s perspectives on participation expressed in these interviews, and what these links between children’s perspectives and their strategies can tell us about children’s participation in the context of a difficult life situation.</p
La répartition de la pression statique dans la volute des pompes centrifuges
No full textStatic pressure distribution in the volutes of centrifugal pumps.
The static pressure distribution in the volute of a centrifugal pump is seen not to be evenly distributed around the impeller periphery, even when the pump is running at normal conditions. To deal with the obvious drawbacks of this phenomenon, the Author proposes a theoretical
method for obtaining a suitable volute shape with an even distribution. The method is essentially based on the assumption that the water leaves the impeller in the form of a number of successive jets diffusing in the main volute flow. By means of certain assumptions, a method can be obtained for designing the various volute cross-sections. The value of this method was verified by means of a number of tests on a standard volute and one designed by the proposed method. The result was an overall increase of about 2 % in the efficiency in the redesigned volute.On constate que la répartition de la pression statique dans la volute d'une pompe centrifuge n'est pas uniforme sur la périphérie de la roue, même si la pompe fonctionne au régime normal. Les inconvénients de ce phénomène étant évidents, on propose une méthode de calcul qui donne un tracé convenable de la volute de façon que cette répartition reste uniforme. La méthode est basée essentiellement sur la configuration selon laquelle l'eau quitterait la roue sous forme de jets successifs qui viennent se diffuser dans l'écoulement principal de la volute. Par certaines hypothèses on arrive à une expression qui permet de calculer les sections de la volute. Pour voir l'efficacité de la méthode, on a effectué : quelques séries d'essais avec une volute classique et une autre calculée par la méthode proposée. On a constaté, en effet, une amélioration du rendement global de la pompe de l'ordre de 2 %.Ergin A. La répartition de la pression statique dans la volute des pompes centrifuges. In: Turbines et pompes hydrauliques. Compte rendu des cinquièmes journées de l'hydraulique, Aix-en-Provence, 26, 27 et 28 juin 1958. Tome 2, 1959
INFLUENCER: BUILDING YOUR PERSONAL BRAND IN THE AGE OF SOCIAL MEDIA
No full textAuthor: Brittany HENNESSY,Influencer: Sosyal Medya Çağında Marka Yaratmak (Influencer: Building Your Personal Brand in the Age of Social Media),Alara ERGİN (translated by),İstanbul: Nova Yayınları,2022, 208 p.ISBN: 978-625-8489-23-
Author Correction: Prognosis and risk factors of ERCP pancreatitis in elderly
No full textThe original version of this Article contained an error in Table 3, where the “Complications” for “Syrén et al. (2019)36” was given in Turkish. “Belirtilmemiş” now reads: “Unspecified” The original Article has been corrected. © 2021, The Author(s)
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