Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Dertli, Enes(47)
- Pat, Suat(29)
- Özen, Soner(29)
- Şenay, Volkan(24)
- Korkmaz, Şadan(23)
- Esmer, Yusuf(21)
- Şahin, Engin(21)
- Korkmaz, Özge(20)
- Cuce, Erdem(19)
- Öner, Erdal(18)
- Öztürk, Mesut(18)
- Artar, Musa(17)
- Yilmaz, Mustafa Tahsin(17)
- İspirli, Hümeyra(16)
- Ecem Bayram, Nesrin(15)
- Kaya, Yunus(15)
- Cinar, Mehmet(13)
- Cuce, Pinar Mert(12)
- Kamiloğlu, Aybike(12)
- Kutlu, Naciye(12)
- Mercan, Emin(12)
- Birinci, Ahmet(11)
- Bulut, Mehmet(11)
- Yaylacı, Murat(11)
- Bayram, Ozkan(10)
- Can, Zehra(10)
- Doğan, Zeki(10)
- Kahya, Cem(10)
- Karaali, Rabi(10)
- Pabuçcu, Hakan(10)
- Tosun, Figen Çam(10)
- Özdemir, Akın(10)
- Ayazoglu, Rabil(9)
- Battal, Fetullah(9)
- Bayram, Nesrin Ecem(9)
- Büte, Mustafa(9)
- Ertugrul, Mehmet(9)
- Kadakal, Mahir(9)
- Kaplan, Abdullah(9)
- Sarikaya, İsmail(9)
Yayınlar
- MakaleYalnız künye2022Citizenship literacy scale: development, validity and reliability study
Karadağ, Ahmet; Kapusızoğlu, Mehmet
Citizenship Literacy Scale is a scale developed to measure individuals’ level of knowledge and interest in citizenship, their ability to use their right to seek rights and to transform it into actions. The statements in the scale were created as a result of unstructured interviews and literature review. The content validity of the Citizenship Literacy Scale was ensured, and exploratory and confirmatory factor analyzes were conducted to ensure construct validity. According to the results of the exploratory factor analysis, the scale consisted of 29 statements gathered under 4 factors and explained 65,573% of the total variance. After the exploratory factor analysis, confirmatory factor analysis was performed and the model's goodness-of-fit indices were examined. Goodness of fit values as a result of confirmatory factor analysis; χ2 = 1430,423; df=363, p= .000; χ2/df= 3.941; RMSEA = 0.052; SRMR = 0.051; GFI=0.912; AGFI=0.901; TLI= 0.944; CFI=0.950; IFI = 0.950; NFI=0.934; RFI=0.926 was found. According to these values, it was understood that the Citizenship Literacy Scale showed excellent fit for CFI and IFI, χ2/df, good fit for RMSEA, SRMR, GFI, NFI and RFI. All the results obtained showed that the Citizenship Literacy Scale, which was developed, is a valid and reliable measurement tool for measuring the citizenship literacy levels of individuals.
AtıfTR Dizin2
İncele - MakaleYalnız künye2022Değer Odaklı Aile Eğitimine Yönelik Özel Eğitimde Görev Yapan Öğretmen Görüşlerinin İncelenmesi
Uğur, Saruhan; Saruhan, Yeşim; Arslan, Adem
U araştırma değer odaklı aile eğitimine yönelik özel eğitimde çalışan öğretmenlerin görüşlerini incelemek için yapılmıştır. Araştırma 2020-2021 eğitim öğretim yılında kolay ulaşılabilirlik yöntemi ile ulaşılan ülkemizin farklı illerinde özel eğitim kurumlarında çalışan 82 öğretmen ile yapılmıştır. Toplanan veriler içerik analizi yöntemi ile analiz edilmiştir. Sonuç olarak; özel eğitimde çalışan öğretmenlere göre çocuklar günlük yaşam, değer görme, öz bakım, toplumsal uyum, sevgi, sorumluluk, saygı, kabul, insani değerler, öz güven, empati, güven, azim-çaba, çalışkanlık, sosyal değerler ve hoşgörü değerlerine ihtiyaç duymaktadırlar. Ailelerin ise bağımsız yaşam, sorumluluk, mutluluk, sevgi, saygı, akademik gelişim, öz bakım, toplumsal uyum, kabul, merhamet, sosyal değerler, evrensel değerlerlerini görmek istediğini düşünmektedirler. Öğretmenler ailelerle; doğrudan iletişim, yüz yüze iletişim, telefon ile iletişim, toplantılarla, okul giriş çıkışlarında, çevrim içi toplantılarla, ev ziyaretleri ile, küçük not kağıtları ile ve samimiyetle iletişim kurduklarını ifade etmektedirler. Özel eğitimde çalışan öğretmenlere göre aileler en çok kabul, psikolojik destek, duygusal destek, öğretim yöntem ve teknikleri, doğru iletişim, öz bakım, davranış eğitimi, sabır eğitimi, engel özellikleri, okul aile iş birliği, cinsel eğitim, bilgilendirme, sorunlarla baş etme, rehberlik, ev etkinlikleri, değerler eğitimi konularında eğitime ihtiyaç duymaktadır. Öğretmenlerin %14,6’sı aile eğitim ya da katılım çalışması yapmadıklarını ifade etmişlerdir. %85,4’ü ise seminerler, bireysel görüşmeler, sınıfa davet, etkinlik paylaşma, aile toplantıları, grup sohbetleri, çevrim içi eğitim ve gezi yaptıklarını ya da planladıklarını ifade etmişlerdir. Özel eğitimde öğretmenler değer odaklı bakış açısı geliştirmelidir. Ayrıca değer odaklı aile eğitimleri düzenlenebilir ya da yaygınlaştırılabilir.
AtıfTR Dizin1İncele - MakaleYalnız künye2022Scopus SJRQ2Soküm’ün aktarılmasında yaşanan sorunlara bir örnek olarak bayburt’ta zanaatlar ve zanaatkârlık
Kabak, Turgay
İnsanoğlunun yeryüzündeki yaşantısı başladıktan sonra ortaya koyduğu ilk planlı, teşkilatlı ve örgütlü faaliyetlerden birisi ticarettir. Çünkü insan, yapısı gereği bütün ihtiyaçlarını kendisi karşılayabilen bir varlık değildir. Hayatta kalması için diğer insanların ürettiklerine de ihtiyaç duymaktadır. Ticaretin, mesleklerin ve para akışının da doğuşuna vesile olan bu ihtiyacı karşılamak için dünyanın her yerinde insanlar farklı organizasyonlar geliştirmişlerdir. Türklerin Anadolu ve çevresinde geliştirdiği Ahilik teşkilatı ve bu teşkilat içerisinde zanaatkârlar geçmiş dönemlerde Türk insanının ihtiyacı olan bütün mal ve hizmetleri el emeği yoğun bir çalışma şekliyle karşılamışlardır. Ancak bu zanaatlar ve onları icra eden zanaatkârların faaliyetlerini sadece ticari faaliyetler olarak değerlendirilmemelidir. Çünkü bu faaliyetlerin çevresinde çok zengin bir somut ve somut olmayan kültürel miras da oluşmuştur. Bu çalışmanın amacı insanların ilk üretim biçimlerinden birisi olan ve el emeği yoğun bir üretim sürecine sahip olan zanaatlar içerisinde yok olmaya en yakın beş tanesinin Bayburt il merkezindeki durumunu incelemektir. Bu incelemeyi yapabilmek için nitel araştırma yöntemlerinden doküman analizi ve saha araştırması yöntemleri kullanılmıştır. Saha araştırmasında da gözlem ve mülakat teknikleri kullanılmıştır. Daha sonra elde edilen veriler ilgili literatür ışığında incelenerek, diğer büyük illere göre hala bir nebzede olsa geleneksel hayatın devam ettiği Bayburt ilinde dahi zanaatların ve zanaatkarların modern zamanın sanayi ve ticaret gücü ile rekabet edemediği ve yok olmaya yüz tuttuğu tespit edilmiştir. Bu tespitin ortaya koyduğu durum sadece bazı zanaatların yok olması demek değildir. Bu zanaatı icra eden zanaatkârların mesleğin öğrenilmesinden icrasına, halka satışından esnaflar arasındaki meslek hukukuna kadar sahip oldukları çok geniş kapsamlı bir geleneksel bilginin de gelecek kuşaklara aktarılamayarak yok olmaya başladığı görülmektedir. UNESCO’nun çeşitli sözleşmeler çerçevesinde somut olmayan kültürel miras listesinde kabul ettiği ve milli kültürü oluşturan önemli nüvelerden birisi olan mesleki bilgilerin yok olması aynı zamanda genelde ülkemizde özelde de Bayburt’ta somut olmayan kültürel mirasımızı geleceğe aktarma konusunda çok büyük problemlerle karşı karşıya olduğumuzu göstermektedir. Bugün ülkemizde amatörler, müzeler ve çeşitli kurumlar tarafından zanaatların somut çıktıları olan ürünler çoğu bağlamından kopuk bir şekilde de olsa koruma altına alınıp saklanmaktadır; ancak bu zanaatların sahip olduğu kültürel değeri yaşatabilmek için sadece materyal saklamak yeterli değildir. Materyallerin üretim sürecinin bağlamı ile birlikte yaşatılması gereklidir. Ancak bu şekilde mesleki bilginin içerisinde yer alan kültürel kodlar geleceğe aktarılabilir ve dünya kültür mirasına kazandırılabilir. Çalışmanın dikkat çektiği husus da Bayburt ilinde geç kalınması durumunda mesleklerinin son temsilcileri olan zanaatkârlar ile birlikte bu somut olmayan kültürel mirasın yok olacağıdır. Bu konuda özellikle il bazındaki resmi kurumların üniversitede istihdam edilen uzmanların ve UNESCO Türkiye Milli Komisyonu’nun da paydaş olduğu projelerle bu süreci tersine çevirebileceğine de dikkat çekilmiştir.
AtıfTR Dizin1İncele - MakaleYalnız künye2022Gömülü ve sarıcı öznitelik seçim yöntemlerinin kullanılması ile akciğer rahatsızlıklarının tespiti
Aras, Selim; Engin, Mustafa Alptekin
Son yıllarda biyomedikal sinyal işleme alanındaki gelişmelere rağmen, akciğer rahatsızlıklarının tespiti üzerine hızlı ve yüksek doğrulukta çalışan teşhis sistemlerine duyulan ihtiyaç artmaktadır. Yapılan çalışmada fiziki muayene ile 94 farklı kişiden, solunum döngülerinin otomatik olarak tespit edilmesiyle elde edilen 150 adet normal ve 444 adet normal olmayan akciğer sesleri veri tabanı olarak kullanılmıştır. Sınıflandırmada öznitelik olarak frekans ve zaman bölgesinde 12 farklı yöntem uygulanmıştır. Elde edilen öznitelikler gömülü ve sarıcı öznitelik seçim yöntemleri kullanılarak değerlendirilmiştir. Bu yöntemler; özyinelemeli öznitelik eliminasyonu, uyarlanabilir yapı öğrenimi ile öznitelik seçimi, bağımlılık kılavuzlu denetimsiz öznitelik seçimi, sıralı yerellik ile denetimsiz öznitelik seçimi, içbükey küçültme yoluyla öznitelik seçimi, en küçük mutlak büzülme ve seçim operatörü öznitelik seçim yöntemleri olarak isimlendirilmektedir. İncelenen bu öznitelikler doğrusal destek vektör makineleri, k en yakın komşuluk, karar ağaçları ve naive Bayes yöntemleri ile sınıflandırılmıştır. Sonuç olarak öznitelik sayısının sınırlandırılmadığı durum için, özyinelemeli öznitelik eliminasyonu yönteminin k en yakın komşuluk sınıflandırma ile beraber kullanıldığı durum için %97,3 doğruluk değerindeki başarıma ulaşılmaktadır. Öznitelik sayısının üç ile sınırlandırıldığı durumda ise uyarlanabilir yapı öğrenimi ile öznitelik seçimi yönteminin karar ağaçları yöntemi ile beraber kullanılması ile %91,4 değerinde başarıma ulaşılmıştır. Sınıflandırmada solunum döngülerinin otomatik tespit edilmesi ve en uygun özniteliklerin seçilmesi aracılığı ile yüksek doğruluk değerine ulaşılmıştır.
- MakaleYalnız künye2022Scopus SJRQ3Comparative Analysis of Migrant Integration Policies of Turkiye and Selected Countries
Ustabulut, Mete Yusuf; Boylu, Emrah; Basar, Umut
Turkiye's migrant integration policy, which is one of the most migration-receiving countries in the Middle East owing to regional conflicts during the 2000s, is assessed alongside that of other receiving nations in the Migrant Integration Policy Index (MIPEX). These index ranks nations in eight key categories: labor market mobility, family reunion, education, health, political participation, permanent residence, access to nationality, and anti-discrimination. This study examines Turkiye's change in migration policy ratings by comparing the index 2015 and 2020 with six European countries (Germany, Belgium, France, Norway, Finland, Sweden). It is found that there was a significant disparity in index scores between Turkiye and these European countries in the 2015 MIPEX report; however, this difference has narrowed in the 2020 report. Turkiye's migrant integration policy rankings have improved substantially (+17), according to the 2020 report. As a result, Turkiye's policy indicator has increased from slightly unfavourable to halfway favourable . Although this score and increase are not at the desired level, they may indicate comprehensive improvements in Turkiye's integration policies in the following report.
- Derleme MakaleYalnız künye2022The Journey of Customer Identification: A Systematic Literature Review and Directions for Further Investigation
Vardarsuyu, Merve; Sunaoglu, Serife Kazanci
Customer identification has been a key concept in understanding consumers' relationships with brands. In this review article, we aim to provide a comprehensive overview of extant knowledge on customer identification and offer suggestions for future development in line with the gaps identified in the prior literature. We systematically review 73 peer-reviewed journal articles pertinent to customer identification in the Scopus database. We discuss the review findings in five sections, namely, conceptualization, theoretical framework, descriptive information, methodological trends, and key variables. Drawing from the gaps in the existing literature, we propose several suggestions for future research and end the paper with concluding remarks.
AtıfWoS1OpenAlex1TR Dizin2
İncele - MakaleYalnız künye2022TIMELIKE HELICES IN THE SEMI-EUCLIDEAN SPACE E24
Aydin, Tuba Agirman; Ayazoglu, Rabil; Kocayigit, Huseyin
In this paper, we define timelike curves in R-2(4) and characterize such curves in terms of Frenet frame. Also, we examine the timelike helices of R-2(4), taking into account their curvatures. In addition, we study timelike slant helices, timelike B-1-slant helices, timelike B-2-slant helices in four dimensional semi-Euclidean space, R-2(4). And then we obtain an approximate solution for the timelike B-1 slant helix with Taylor matrix collocation method.
AtıfWoS1İncele - MakaleYalnız künye2022THE NEXUS BETWEEN SOCIAL UNREST AND MIGRANT REMITTANCES: EMPIRICAL EVIDENCE FROM GEORGIA
Ari, Yilmaz Onur; Koç, Umit
The paper examines the social unrest and migrant remittances relationship for Georgia using monthly time series data covering January 2007- July 2019. The Granger Causality Test was employed in the application of the econometric technique. Frequency domain causality test was also used in order to empower the findings of the study. The empirical findings showed that there is a bidirectional causality between the reported social unrest index (RSUI) and the remittance inflow to Georgia. Besides, frequency domain causality test results indicated that RSUI was the Granger cause of remittance inflow in the medium term (7-10 months), while remittance inflow was the Granger cause of RSUI in the short term (2-6 months). Social unrest comprises protests based on basic economic needs such as food, gas, electricity etc. Therefore, social unrest can be a supportive factor of remittances inflow to Georgia. This is in line with the view that remittances sent by Georgian immigrants to their families in Georgia are used for consumption rather than investments. On the other hand, remittances can be a determinant of social unrest for Georgia because the existence of separatist movements in Abkhazia and former South Ossetia can be interpreted as remittances can be an important source to fund these movements.
- MakaleYalnız künye2022INEQUALITIES OF HERMITE-HADAMARD TYPE FOR n-TIMES DIFFERENTIABLE ARITHMETIC-HARMONICALLY FUNCTIONS
Kadakal, Huriye
In this work, by using an integral identity together with both the Holder and the power-mean integral inequalities we establish several new inequalities for n-times differentiable arithmetic-harmonically-convex function. Then, using this inequalities, we obtain some new inequalities connected with means. In special cases, the results obtained coincide with the well-known results in the literature.
AtıfWoS1İncele - MakaleYalnız künye2022Scopus SJRQ2Crafts and Craftmanship in Bayburt Province as an Example of the Problems Faced in Transmission of Intangible Cultural Heritage
Kabak, Uyesi Turgay
Trading is one of the first planned and organized activities that mankind put forward after his life on earth started. Because human beings are not a being that can meet all their needs by themselves. They also need what other people produce in order to survive. People all over the world have developed different organizations in order to meet this need, which has led to the birth of trade, professions and money flow. The Ahiorder organization developed by the Turks in Anatolia and its surroundings and the craftsmen within this organization met all the goods and services needed by the Turkish people in the past with an intensive way of working. However, these crafts and the activities of the craftsmen performing these should not be considered merely as commercial activities. Because a very rich tangible and intangible cultural heritage has also been formed around these activities. The purpose of this study is to examine the situation of the five facing extinction among the handicrafts in Bayburt province, which are one of the first forms of production and have a production process intensive by hand. Document analysis and field research methods, which are among qualitative research methods, were used in this study. Observation and interview techniques were used in the field research. Then, the data obtained were examined in the light of the relevant literature and it was determined that even in the province of Bayburt, where traditional life continues to a certain extent compared to other big cities, crafts and craftsmen cannot compete with the industrial and commercial power of modern times and are about to disappear. The situation revealed by this result does not only mean the disappearance of some crafts. It is seen that a wide-ranging traditional knowledge of the craftsmen who carry out this craft, from learning the profession to its execution, from selling to the public to the professional law among tradesmen, has begun to disappear without being transmitted to future generations. The disappearance of professional knowledge, which is one of the important corners of the national culture and accepted by UNESCO in the intangible cultural heritage list within the framework of various conventions, also shows that we are facing with great problems in the transmission of our intangible cultural heritage to the future generations in our country in general and in Bayburt in particular. Today, the products that are the concrete output of the crafts are taken under protection by amateurs, museums and various institutions in our country, even if they are disconnected from their context; however, it is not enough to keep only materials in order to keep the cultural value of these crafts alive. The materials must be kept alive with the context of the production process. Only in this way can the cultural codes in the professional knowledge be transmitted to the future generations and brought to the world cultural heritage. The point of the study is that if it is late in the province of Bayburt, this intangible cultural heritage will become extinct together with the craftsmen who are the last representatives of their profession. In this regard, it was remarked that this process can be reversed with the projects in which the official institutions, the experts employed at the universities and the Turkish National Commission for UNESCO are partnered together in terms of cities.
- MakaleYalnız künye2022A New Approach to Human Capital: Crime Adjusted Human Capital Index on European Countries
Kabakçi Günay, Eylul; Yildiz, Umit; Günsoy, Guler; Günsoy, Bulent
Human capital is a one of the essential components in the economic growth and development. Also, the belief that education and health level, which are the main components of human capital, are main features of a happy and healthy society, is getting stronger. But there is a fact that crime is a destructive notion that affects a society???s human capital. In this context, this study aims to create an alternative social welfare measurement method that includes crime rates as a component to human capital on 35 European countries. In this regard, first, a general crime index was generated by using 13 different crime categories of the 35 European countries, and then this index was adapted to the Human Capital Index. As a result, the Crime-Adjusted Human Capital Index (CAHCI) was obtained. It was observed that the country rankings we obtained based on the CAHCI differ significantly from the rankings made based on the Human Capital Index. Significant number of countries, which ranks high in the Human Capital Index, ranks lower when crime rates are considered, indicates that the reliability of social welfare measures based on human capital should be questioned.
AtıfWoS1İncele - MakaleYalnız künye2022Scopus SJRQ1Nondestructive Experimental Measurement, Model Updating, and Fatigue Life Assessment of carsamba Suspension Bridge
Günaydin, Murat; Sunca, Fezayil; Altunisik, Ahmet Can; Ergün, Mustafa; Okur, Fatih Yesevi
This paper includes the structural condition assessment of a 164-m suspension bridge in accordance with numerical and experimental methods. A finite-element model was developed using SAP2000 software so that the assessment of the bridge could be calculated numerically. The operational modal analysis method was also used to obtain experimental dynamic characteristics. In this context: (i) numerical dynamic characteristics of the bridge were obtained and compared with the experimental dynamic characteristics, (ii) a model updating procedure was carried out to minimize the differences between the numerical and experimental natural frequencies, (iii) static and dynamic analyses of the bridge were carried out by using the initial and updated finite-element models, (iv) fatigue life assessment of the bridge was investigated, and (v) the utility of the bridge for pedestrians and vehicles was checked according to various regulations. The results showed that updating the finite-element model had a significant role to play in the static and dynamic behavior of the bridge. The results also demonstrated that the bridge was designed to be extremely safe against static, dynamic, and fatigue loads. Finally, it was concluded that the bridge investigated behaves as a girder bridge rather than a suspension bridge.
AtıfWoS17OpenAlex18İncele - Kitap BölümüYalnız künye2022Gut effect on phytochemicals
Cebeci, Fatma
The gut microbiota play an important role for host nutritional, physiological, immunological functions like food digestion, vitamin production, protection of gut integrity, regulation of host immunity, and disease pathogenesis. Dietary phytochemicals are important factors to shape and change the human gut microbiota composition in diversity and abundance context. On the other hand, the microbial community of the gut provides a broad range of enzymes to host which are different from its own resources. This enables human gut microbiota to affect and direct the biosynthesis and metabolism of many bioactive compounds. Bioavailability of phytochemicals is important to benefit from health conferring effects of these compounds. Most of the phytochemicals are not absorbed well by the small intestine and pass through to the gut then gut microbiota acts on the compounds to form different metabolites. Therefore, elucidating the role of human gut microbiota on phytochemical metabolism is essential. This chapter discusses the studies reporting the gut microbial effect on different phytochemicals.
- MakaleYayıncıda açık erişim2022Scopus SJRQ3Thiol disulfide homeostasis in primary dysmenorrhea
Savrun, Atakan; Savrun, Şeyda Tuba; Dirican, Ebubekir; Gökçen, Emre; Arıcı, Yeliz Kasko; Aygün, Ali; Korkmaz, Vakkas; Neşelioğlu, Salim; Erel, Özcan; Kıran, Tuğba Raika
Oxidative stress is defined as a result of the loss of balance between the production of free radical or reactive oxygen species and the antioxidant system. This study aimed to determine the level of thiol-disulfide homeostasis (TDH) in the serum of women with primary dysmenorrhea. The study group consisted of 42 subjects with primary dysmenorrhea, and the control group consisted of 30 volunteer women with demographic characteristics similar to the study group. Native thiol (SH), total thiol (TSH), disulphide (SS), and SH/SS parameters were measured for TDH of the subjects. The SH (p = 0.038) and SH/TSH (p = 0.046) levels were significantly higher while SS (p = 0.013), SS/SH (p = 0.042) and SS/TSH (p = 0.046) levels were lower in the study group than in the healthy control group. The SS cut-off value was determined as 17.85 in the study group (sensitivity = 61.9%, specificity = 43.3%). Therefore, the probability of dysmenorrhea may increase significantly when SS levels fall below this value. In subjects with dysmenorrhea, there was a decrease in SS levels and an increase in SH levels in order to protect the cells and tissues from the harmful effects of free radicals.
AtıfOpenAlex1
İncele - MakaleYalnız künye2022Scopus SJRQ1Production and characterisation of goat milk powder made from sonicated whole milk concentrates
Sert, Durmuş; Mercan, Emin
In the present study, goat milk powder (GMP) was produced from sonicated whole milk concentrates for 0–60 min. The physicochemical, functional, and microbiological properties and powder flow behaviours of the GMP samples were determined. Sonication decreased firmness and consistency values of milk concentrate with the increased treatment time. L∗ value of the sonicated GMPs was higher than that of the control. The bulk density of samples was between 0.681 and 0.736 g cm−3, increased by sonication. However, sonication resulted in lower wettability, dispersibility, and foaming capacity. The D [3,2] value of GMPs ranged from 21.9 to 31.1 μm, increased by sonication. Sonication caused reduced cohesion and caking properties of GMPs compared with the control. Also, lower compaction levels at different flow rates were determined in the sonicated samples. In general, powder flow analyses showed that sonication improved GMP flow behaviour. Sonicated samples had reduced microbial load compared with the control.
AtıfScopus12WoS8OpenAlex11İncele - MakaleYalnız künye2022Extinction properties of solutions for a parabolic equation with a parametric variable exponent nonlinearity
Ayazoglu Mashiyev, Rabil; Akkoyunlu, Ebubekir
In this paper, we study a class of p(·)-Laplace equation including nonstandard growth nonlinearity in a bounded smooth domain with homogeneous Dirichlet boundary condition. We establish the conditions of non-extinction and extinction are studied of global weak solutions in finite time for any initial data u0 . Moreover, we show the global existence results for N ≥ 1 with constant p for any initial data u0 .
AtıfScopus2İncele - BildiriYalnız künye2022Evaluating Path Selection Strategies with Blockchain-based Routing in Multi-Domain SDNs
Guler, Evrim; Karakus, Murat; Uludag, Suleyman
Software-Defined Networking (SDN) has emerged as one of the most prolific inventions in the general area of computer communications over the past decade. Among many of the touted benefits, SDN architecture facilitated by OpenFlow has the potential to help network administrators to provide End-to-End (E2E) Quality of Service (QoS)-guaranteed paths for flows among networks while providing finer-granular flow management along with global network view. In our previous work, we have introduced QoSChain to amalgamate the advantages of blockchain and SDN for inter-network QoS provisioning to orchestrate an agile and software-driven traffic management framework in order to facilitate cross-network policy automation, assurance, E2E visibility, control and validation. In this study, we focus on the impact of the path selection strategies on the performance of the overall QoSChain performance. Specifically, we exploit three simple but effective path selection strategies, First Feasible Path Selection (FFPS), Random Feasible Path Selection (RFPS), and Minimum Hop Path Selection (MHPS), to evaluate their performance, impact, and overhead in terms of the flow setup time, message overhead, and network resource consumption metrics. Our preliminary simulations results show that the path selection plays an important role in the overall performance with hop count minimization delivering a superior performance offset by an initial higher setup times.
AtıfScopus7OpenAlex9İncele - Kitap BölümüYalnız künye2022Regulation of Natural Food Additives
Öztekin, Sebahat; Anaya, Katya; Yurdunuseven-Yildiz, Aysun
The use of natural ingredients in food formulation has been facing an increasing demand worldwide. Aiming to preserve the consumer’s health and provide better guidance to the food industry, regulatory agencies must propose precise definitions and establish safe limits of use for additives of natural origin. In this book chapter, we discuss the lack of specific regulations for natural additives and list the substances currently approved by two important regulatory agencies in the globe: the European Food Safety Authority (EFSA) and the Food and Drug Administration (FDA) from the United States. Other regulatory documents from Asia, Australia, and South America are briefly mentioned. Clearly, there is a need for an international regulatory consensus to minimize ambiguity around the term ʼnatural’ with a better understanding of what the term “natural” meant and how it can be applied to food labelling and international trade.
AtıfScopus15OpenAlex9İncele - MakaleYalnız künye2022Scopus SJRQ2Lower bounds for blow-up time in a nonlinear parabolic problem with a gradient nonlinearity
Ayazoglu Mashiyev, Rabil; Ekincioglu, Ismail
In this article, we study the blow-up properties of solutions to a parabolic problem with a gradient nonlinearity under homogeneous Dirichlet boundary conditions. By constructing an auxiliary function and by modifying the first order differential inequality, we obtain lower bounds for the blow-up time of solutions in Lk(Ω ) (k> 1 ) norm and conditions which ensure that blow-up cannot occur.
- MakaleYalnız künye2022Scopus SJRQ3The role of Turkey in the world hazelnut production and exporting
Uzundumlu, Ahmet Semih; Kurtoğlu, Seval; Şerefoğlu, Coşkun; Algur, Zafer
The aim of this study is to estimate the future of the global hazelnut sector for 2019-2025 using the data of 1961-2018. ARIMA model was used to forecast hazelnut production and export quantity. Hirschman Herfindahl Index (HHI) and Concentration Ratios (CR) have been used to determine market status. According to HHI and CR, the world hazelnut market was oligopoly in 1961-2018 and the biggest player in this market was Turkey. Because Turkey was the largest manufacturer and marketer of hazelnut in the industry, 64% of the production and 67% of the exports of world hazelnut were provided by Turkey as the average in the period 2011-2018. Turkey thus determines the world price in hazelnut. According to the concentration ratio, CR1 will be 0.63 and 0.67 in the export and production; this means that about 63-67% of the world hazelnut production and export will have been provided by Turkey from 2019 to 2025. The number of countries producing, and exporting hazelnuts has risen from 13 to 32, and 9 to 58, respectively in the past fifty-eight years in the world. According to the findings of this study, it was forecasted that the competition degree of Turkey’s hazelnut export market will decrease during the period from 2019 to 2025. The results obtained from this study will help policymakers to monitor the way for hazelnut marketing in Turkey.
AtıfScopus20WoS16İncele