1,894 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
ANA BABANIN EĞİTİMİ DEVAM EDEN ERGİN ÇOCUĞA KARŞI NAFAKA YÜKÜMLÜLÜĞÜ
No full textErgin çocuğun ana babadan eğitiminin devam etmesine dayalı olarak ta- lep edebileceği nafakanın temelini TMK m. 328/II hükmü teşkil eder. Bu nafaka, türü itibariyle bakım nafakası niteliğinde olup, TMK m. 327 vd. hükümlerine tabidir. Bu hükümlere göre, ergin çocuk lehine nafakaya hük- medilebilmesi için, ana babanın bakım yükümlülüğünün erginlikten sonra devam etmesi bakımından gerekli koşulların yanı sıra nafaka davasına ilişkin koşulların da gerçekleşmesi gerekir. Erginlikten sonra bakım yükümlülüğü- nün devam etmesi, çocuğun eğitiminin erginlik anına kadar tamamlanmamış olmasına ve çocuğun masraflarını karşılamalarının ana babadan beklenebilir olmasına bağlıdır. TMK m. 38/IIde kastedilen eğitim, TMK m. 340/II uya- rınca çocuğun yetenek ve eğilimlerine uygun olan genel ve mesleki eğitim- dir. Ana babadan çocuğun bakım ve eğitim masraflarının karşılamalarının beklenebilir olması ise, somut olayda ana babanın gerek mali gücünün, gerek çocuk ile olan kişisel ilişkisinin bu fedakârlıkta bulunmalarını haklı kılacak düzeyde olması şeklinde anlaşılmak gerekir. Nafaka davasına ilişkin koşullar kapsamında, davanın hak sahibi kişi tarafından açılmış olması zorunluluk arz eder. Kural olarak nafaka davası, çocuk ergin olduktan sonra bizzat ergin çocuk tarafından açılır. Öte yandan, çocuğun üstün yararı ilkesinden hareket- le, çocuk ergin olmadan önce de, TMK m. 329 uyarınca açılacak bağımsız bir davada veya evlilik hukukuna göre açılmış bir davada iştirak nafakası adı altında, erginlikten sonrası için nafakaya hükmedilebilmelidir.Article 328 paragrapf 2 of Turkish Civil Code constitutes the basis of the contribution which the major child demands from his parents as the continue of his education. This contribution is to be considered as maintenance contribution by type and is ruled by provisions of article 327 cont. Civil Code. According to these provisions, to decide on contribution in favor of the major child, besides the fact that the parents duty of maintenance continue after majority, the conditions regarding to claim for contribution should also be fulfilled. The continue of the duty of maintenance after majority, depends on the condition that the education of the child has not yet completed andconscionable for parents to meet the child s expenses. The education mentioned, is a general and vocational education that corresponds to the child s abilities and inclinations in accordance with TMK m. 340/II. Duty of maintenance after majority is conscionable for parents only if besides their financial power, also their personal relations with child is in a degree that justifies such devotion. Regarding to the claim for contribution, the condition to be examined relates to the right to sue. As a rule, after the majority, right to sue belongs to the major child. On the other hand, in accordance with the principle of best interest of the child, the contribution may also be ruled, even before the majority of the child, through an independent action on the basis of article 329 of Civil Code or as a part of an action regarding to the marital law under the name of spouses duty of contribution. i
Yetersiz Beslenmenin Ve Sonras?ndaki Rehabilitasyonun Gen? Ergin S??an Cerebellar Korteksindeki Etkileri
No full textYetersiz Beslenmenin ve Sonras?ndaki Rehabilitasyonun Gen? Ergin S??an Cerebellar Korteksindeki Etkileri Bu ?al??mada baz? s??anlar, 105 ve 134. g?nler aras?nda, dene/ boyunca iyi beslenen s??anlar?n alm?? olduklar? besin miktar?n?n % 50' si verilmek suretiyle yetersiz beslenmi?lerdir. Bunun yan?nda baz? s??anlar yetersiz besleme periyodunun bitiminden itibaren k?s?tlamas?z besin al?m? sa?lanmak suretiyle 175. g?ne kadar besin rehabilitasyonu g?rm??lerdir. 134. g?nde yetersiz beslenmi? s??anlar?n v?cut a??rl??? kontrol ya??tlar?na g?re ?nemli derecede az bulunmu?tur. 175. g?n sonunda bu kay?p giderilememi?tir. Herbir ya?ta, kontrol ve deney gruplar? aras?nda cerebellum ve ?nbeyin a??rl?klar?, Nvg, Nvp, Nvs, G/P ve S/N de?erlerinde fark g?r?lmemi?tir, fakat 134 ve 175. g?nler aras?nda kontrol hayvanlar?n v?cut ve cerebellum a??rl?klar?, Nvs ve S/N de?erleri ?nemli derecede artm??t?r. Di?er taraftan, 134 ve 175 g?nl?k deney grubu s??anlar aras?nda Purkinje h?cresi n?kleus ?ap? ?nemli derecede azalma g?sterirken, v?cut, cerebellum ve ?nbeyin a??rl?klar? ile Nvg ve Nvs ?nemli art??lar g?sterilmi?tir. Sonu? olarak, bizim sonu?lar?m?z gen? ergin s??an cerebellar korteksinin yetersiz beslenmeye kar?? diren?li oldu?unu g?stermi?tir. Bununla birlikte gran?l h?cre tabakas?ndaki sinaps densitesi ya?la birlikte ?nemli bir art?? g?stermi?tir
Flora of Dinek Mountain (Kırıkkale)
No full textÖZET DÎNEK DAĞI (KIRIKKALE) FLORASI DEMİR, Selman Ali Kırıkkale Üniversitesi Fen Bilimleri Enstitüsü Biyoloji Anabilim Dalı, Yüksek Lisans Tezi Danışman: Doç. Dr. Ergin HAMZAOĞLU OCAK 2004, 93 sayfa Dinek Dağı florası araştırmacının 2001 - 2002 yıllan arasında topladığı 1616 örneğe dayanmaktadır. Bu çalışmada 60 familya ve 256 cinse ait 547 tür, 8 alttür ve 2 varyete olmak üzere toplam 557 takson tespit edilmiştir. En çok tür içeren familyalar Asteraceae (79 tür), Fabaceae (67 tür), Poaceae (39 tür), Brassicaceae (38 tür) ve Caryophyllaceae (37 tür)' dir. En çok tür içeren cinsler ise Astragalus (20 tür), Silene ve Trifolium (11 tür), Ranunculus ve Alyssum (9 tür)' dur. Bitki coğrafyası elementlerinin bölgelere göre dağılımı Îran-Turan elementleri 136 (% 24.4), Akdeniz elementleri 43 (% 7.7), Avrupa-Sibirya elementleri 37 (% 6.6) ve bilinmeyenler 341 (% 61.2)'dir. Alanda 83 (% 14.9) endemik takson vardır. Anahtar Kelimeler: Flora, Kırıkkale, Dinek Dağı.ABSTRACT FLORA OF DİNEK MOUNTAIN (KIRIKKALE) DEMİR, Selman Ali Kınkkale University Graduate School of Natural and Applied Sciences Department of Biology, M. Sc. Thesis Supervisor: Assoc. Prof. Dr. Ergin HAMZAOGLU January 2004, 93 pages The flora of Dinek Mountain is based on the collections 1616 specimens made by the researcher from between years 2001 and 2002. In this study, 557 taxa including 547 species, 8 subspecies and 2 varieties belonging to 256 genera and 60 families are determined. The largest families are Asteraceae (79 species), Fabaceae (67 species), Poaceae (39 species), Brassicaceae (38 species) and Caryophyllaceae (37 species). The largest genera are Astragalus (20 species), Silene and Trifolium (11 species), Ranunculus and Alyssum (9 species). The distribution of phytogeographical elements are Irano-Turanian 136 taxa (24.4 %), Mediterranean 43 taxa (7.7 %), Euro-Siberian 37 taxa (6.6 %) and unknown 341 taxa (61.2 %). In the area, there are 83 endemic taxa (14.9 %). Key words: Flora, Kınkkale, Dinek Mountain
A Microprocessor Protection Architecture against Hardware Trojans in Memories
No full textSoftware exploitable Hardware Trojan Horses (HWTs) have been currently inserted in commercial CPUs and, very recently, in memories. Such attacks may allow malicious users to run their own software or to gain unauthorized privileges over the system. Therefore, HWTs are nowadays considered a serious threat both from academy and industry. This paper presents a protection architecture meant to shield the communication between the CPU and the memory in a microprocessor-based system. The architecture aims at detecting the activation on HWTs infesting the instruction and data memories of the system. Our proposal relies on the use of Bloom Filters (BFs) that are included in ad-hoc designed checkers and integrated in the protection architecture. BFs guarantee zero false alarms and a small (and configurable) percentage of undetected alarms. We applied the protection architecture to a case study system based on a RISC-V microprocessor implemented on an FPGA and running a set of software benchmarks. Our proposal demonstrated to be able to detect more than 99% of possible HWTs activations with zero false alarms. We measured a lookup table overhead ranging from 0.68% up to 10.52% and a flip-flop overhead between 0.68% and 0.99%, and with no working frequency reduction
Detecting errors in instructions with bloom filters
No full textIEEE International Symposium on Defect and Fault Tolerance in VLSI and Nanotechnology Systems (DFT) (2017 : Cambridge, ENGLAND)Bit flips on instructions may affect the execution of the processor depending on the Instruction Set Architecture (ISA) and the location of the flipped bits. Intrinsically, ISAs may detect bit upsets if the errors on the instructions produce exceptions that halt the execution. Previous works exploit this fact to improve the error detection capabilities of ISAs with an addition of simple encoding/decoding scheme to propagate any single bit error to the "most vulnerable bit" of the instructions in order to detect the error by crashing the system. Although it was proven that this approach significantly reduces the Silent Data Corruptions (SDC), as an error detection scheme, it is not practical since detection causes system crash. In this paper, we propose using a Bloom Filter (BF) along with the encode/decode scheme to detect soft errors without executing the erroneous instruction and thus avoiding system crash. The contents of the BF are those obtained by inserting the valid program instructions and can be computed at compile time. Then prior to execution, the contents are loaded into the BF. During execution, instructions are first checked on the BF and on a negative an error is detected as the instruction is not any of the ones in the program. A small number of false positives can occur for erroneous instructions (due to the nature of the BF) and may still be detected with the system crash as in previous works. Our approach has two main benefits. The first one is an increase in the error detection rate as the set of valid instructions is restricted to those used in the program allowing the detection of invalid instructions even if they do not lead to a system crash. The second one is that errors are detected before the crash. This is done at the cost of adding a small memory for the BF and some control logic that requires a low overhead. We evaluated this approach on binary files of the ARM Cortex M0 core. According to our findings, the BF is able to significantly improve the error detection rate
Rey) (Hemiptera: Tingidae) on Almond, Poplar and Willow Trees in Diyarbakır and Mardin
No full textWOS:000592231400007Bu çalışma ile 2009-2011 yılları arasında Diyarbakır ve Mardin
illerinde badem ağaçlarında önemli zararlara yol açan Monosteira
lobulifera Reuter (Hemiptera: Tingidae) ile kavak ve söğüt
ağaçlarında önemli zararlara yol açan M. unicostata (Mulsant &
Rey)’nın (Hemiptera: Tingidae) ergin popülasyon gelişimi
belirlenmiştir. Popülasyon gelişiminin takibi için gözle kontrol ve
darbe yöntemi uygulanmıştır. Çalışma sonucunda, M. lobulifera’nın
badem ağaçları üzerindeki ergin popülasyon yoğunluğu Çermik
(Diyarbakır) ilçesinde 2010 yılında 31 Temmuz (131 ergin), 2011
yılında 13 Ağustos (130 ergin); Artuklu (Mardin) ilçesinde 2010
yılında 22 Ağustos (579 ergin), 2011 yılında 17 Eylül (498 ergin);
Yeşilli (Mardin) ilçesinde 2010 yılında 15 Ağustos (550 ergin) ve
2011 yılında 21 Ağustos (556 ergin) tarihinde tepe noktasına
ulaşmıştır. Monosteira unicostata’nın kavak üzerindeki ergin
popülasyon yoğunluğu Mazıdağı (Mardin) ilçesinde 2010 yılında 4
Eylül (360 ergin), 2011 yılında 5 Eylül (400 ergin); Artuklu (Mardin)
ilçesinde 2010 yılında 4 Eylül (161 ergin) ve 2011 yılında 5 Eylül
(158 ergin) tarihinde tepe noktasına ulaşmıştır. M. unicostata’nın
söğüt ağaçlarındaki ergin popülasyon yoğunluğu Mazıdağı (Mardin)
ilçesinde 2010 yılında 4 Eylül (326 ergin), 2011 yılında 17 Eylül (450
ergin); Artuklu (Mardin) ilçesinde 2010 yılında 4 Eylül (106 ergin) ve
2011 yılında 17 Eylül (98 ergin) tarihinde tepe noktasına ulaşmıştır.In this study, the adult population development of Monosteira
lobulifera Reuter (Hemiptera: Tingidae) which causes serious
damage on almond and M. unicostata (Mulsant & Rey) (Hemiptera:
Tingidae) which causes serious damage on poplar and willow trees
was determined in Diyarbakır and Mardin provinces between 2009
and 2011. In the study, visual inspection and shaking method were
used to monitor the population development of two pests. As a result
of the study, the adult population density of M. lobulifera on almond
trees reached peak level on July 31, 2010 (131 adults) and on August
13, 2011 (130 adults) in Çermik (Diyarbakır) district; on August 22,
2010 (579 adults) and on September 17, 2011 (498 adults) in Artuklu
(Mardin) district; on August 15, 2010 (550 adults) and on August 21,
2011 (556 adults) in Yeşilli (Mardin) district. The adult population
density of M. unicostata on poplar trees reached peak level on
September 4, 2010 (360 adults) and on September 5, 2011 (400
adults) in Mazıdağı (Mardin) district; on September 4, 2010 (161
adults) and on September 5, 2011 (158 adults) in Artuklu (Mardin) district. The adult population density of M. unicostata on willow
trees reached peak level on September 4, 2010 (326 adults) and on
September 17, 2011 (450 adults) in Mazıdağı (Mardin) district; on
September 4, 2010 (106) and on September 17, 2011 (98 adults) in
Artuklu (Mardin) district
An isogeometric FE-BE method and experimental investigation for the hydroelastic analysis of the horizontal circular cylindrical shell partially filled with fluid
No full textIn this study, the dynamic characteristics (i.e. natural frequencies and associated mode shapes) of a partially filled horizontal cylindrical shell are investigated experimentally and by an isogeometric finite element-boundary element method. The proposed numerical procedure is divided into two parts. In the first part, the dynamic characteristics of the cylindrical shell under in-vacuo conditions are obtained by the isogeometric finite element method (IGAFEM) based on a linear Kirchhoff-Love shell formulation. In the second part, the fluidstructure interaction effects are calculated in terms of generalized added mass coefficients by using the isogeometric boundary element method (IGABEM), assuming that the structure vibrates in its in-vacuo principle mode shapes. By adopting the linear hydroelasticity theory, it is assumed that the fluid flow is ideal, i.e., an incompressible flow and inviscid fluid. In order to show the versatility of the numerical method, the results are compared with those obtained by the conducted experiments. Relevant numerical challenges in the hydroelastic vibration analysis are highlighted and it is shown that the numerical predictions and experimental results are in good agreement. <br/
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