Bu araştırma Koroner Arter Hastalığı(KAH) olan bireylerde yorgunluk ve uyku kalitesinin değerlendirilmesi amacıyla yapılmıştır. Araştırma, bir üniversite hastanesinin kardiyoloji kliniğinde Haziran-Eylül 2019 tarihleri arasında yapılmıştır. Araştırmada örnekle…
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381 results for “missing data, multiple imputation, Bayesian imputation, repeated measures, missing at random”
Korovkin type approximation theorems have very important role in the approximation theory. Many mathematicians investigate and improve these type of approximation theorems for various operators defined on different spaces via several new convergence methods. T…
It is well known that non-Gaussian noise deteriorates the detection performances of the conventional detection methods. This problem is also encountered in cognitive radio where impulsive structure of noise negatively affects spectrum sensing. Multistage detec…
Günümüzde, birçok araştırmacı optimizasyon problemleri çözen algoritmaları geliştirme eğilimindedir. Gerçek dünya problemleri ise genelde birden çok amaca sahip oldukları için çok amaçlı optimizasyon problemleri üzerine geliştirilen algoritmalar trend olmuştur…
Hastaneler yüksek maliyetlere ve belirsizliklere sahip; aynı zamanda sınırlı kaynaklarla mümkün olan en kaliteli hizmeti sağlama amacıyla yönetilen sistemlerdir. Ameliyathaneler de bu sistemin en önemli gelir ve gider kaynağını oluşturmaktadır. Ameliyathane çi…
Bu çalışmada 20 farklı Türk üniversitesinde okuyan birinci sınıf ilköğretim matematik öğretmeni adaylarının sayı öğretme bilgilerinin çeşitli demografik değişkenler tarafından nasıl yordandığı araştırılmıştır. Veriler birinci sınıfın hemen başında, Aydın [1]…
Çalışma, kronik hastalığı olan bireylerde yeti yitimi ve günlük yaşam aktivitelerinin belirlenmesi amacıyla yapılmıştır. Bu çalışma, bir üniversite hastanesinin dahili kliniklerinde tedavi gören araştırma kriterlerine uyan 300 hasta üzerinde tanımlayıcı nite…
A useful and flexible method based on the salp swarm algorithm (SSA) for the pattern nulling of linear antenna arrays with the prescribed nulls is presented. SSA is a relatively new population based evolutionary optimization algorithm. Nulling of the pattern i…
In this research, consumer perception in e-commerce and internet marketing of agricultural products in Samsun was evaluated. Thus, 384 consumers were interviewed by simple random sampling method. The aim of the interviews is to measure consumers' knowledge abo…
Field Programmable Gate Arrays (FPGAs) are configurable logic semiconductor devices which connect by programmable interconnections. They can be reprogrammed to desired application or functionality requirements. VHDL is a one of the hardware descriptive languag…
The emergence of Open Finance is reshaping the global financial landscape by enabling greater data accessibility, interoperability, and innovation. However, this expanded connectivity introduces new layers of regulatory complexity, raising urgent concerns rega…
Instantaneous estimation of the frequency of a real sinusoid in noise from a small number of data samples is an important problem in the signal processing area. Several frequency estimators are proposed for this problem in the literature. In this paper, some o…
In the analysis of the flood routing problem, it is necessary to determine the change of the flood wave moving through the channel according to time and location, and in this context, nonlinear 3-parameter Muskingum model (NL-MUSK) is widely used. The parame…
This study was carried out to determine pre-operative anxiety levels of day surgery patients. This descriptive study was conducted between june 2016 and october 2017 in the general surgery clinic of Yalova State hospital. The study population consisted of adul…
Eşikleme yöntemleri kenar belirleme, bölütleme ve kümeleme yaklaşımlarında sıklıkla kullanılmaktadır. Söz konusu teknikler yardımıyla renk kanallarından çeşitli sayıda kümeler elde edilebilir. Ancak, hangi yaklaşımın daha başarılı olduğu konusu belirsizliğini …
At the last two decades the information world and associated information technologies have been progressed. This progress can be implemented from the concept of the internet to the internet of things. The Internet of things (IoT) refers to billions of electron…
In this paper, a singular-feed circularly polarized (CP) metasurface antenna with broad impedance bandwidth is presented. The antenna consists of modified slots with a lattice of 3 × 3 square conductive patches. Modes are selected and excited by modified slot …
Coasts appear as an indispensable place in the daily life of the city. In coastal cities, in coastal use, they are places that shape not only the current experiences but also the city and its historical identities. These positions, which have the characteristi…
Scientific progress is an ongoing process and humans always have new ideas for new inventions. Although, scientific process is cumulative, you must invent the tire before inventing the car. Currently, mankind has past that point and looking towards to new chal…
In this talk, we investigate a model of the oxygen-phytoplankton-zooplankton dynamics to understand the underlying properties of the effect of environmental stochasticity both on oxygen production rate and phytoplankton growth rate. We address this issue the…