10XSBF Bone-Like Hydroxyapatite Coating of Ti-6Al-4V with Microwave Irradiation and its Antibacterial Properties

Mustafa DOLAZ

The surfaces of titanium (Ti-6Al-4V) implants, which are widely preferred as implant material in medicine and dentistry, are biomimetically coated with nanohydroxyapatite (nHAp) in simulated body fluid (10XSBF) with microwave-assisted 10-f time concentration solution. A second layer was formed with different amounts of non-toxic AgNO3 to impart antibacterial properties to the implant materials coated with nHAp. In comparison of uncoated implants with nHAp and Ag-coated Ti-6Al-4V implants, surface morphologies were evaluated by SEM analysis, phase grade and structure were evaluated by XRD, and ...Daha fazlası

Makale 2022 Mühendislik Fakültesi Transactions of the Indian Institute of Metals76 ( 5 ) 23 Görüntülenme

The Oxidation Behavior of Potato Starch and Benzyl Alcohol via Peroxide in the Catalysis of Metal Complexes

Mustafa DOLAZ

Two new Schiff bases ligands (HL1 and HL2) and their Co2, Mn2, Fe3, Ru3, Cr3, and VO2 complexes were synthesized and characterized by FT-IR, 1H-NMR, and Mass spect. and analytical methods. A single-crystal X-ray diffraction study determined the molecular structure of HL1. The catalytic effects of metal complexes on benzyl alcohol and potato starch (PS) oxidation were compared in an H-2O-2 medium. The percent conversion of benzyl alcohol to benzaldehyde and benzoic acid was determined by Gas Chromatography. [Co(L-1)(2)], [Mn(L-1)(2)], [Co(L-2)(2)], and [Mn(L-2)(2)] showed the highest catalytic ...Daha fazlası

Makale 2022 Mühendislik Fakültesi Starch-Starke8 ( 9 ) 60 Görüntülenme

Migrant parents and psychosocial effects of parents' absence on children left behind in the Kyrgyz Republic

Gülşat MUHAMETJANOVA

This study was conducted to investigate the psychosocial effects of parents' absence on children left behind in the Kyrgyz Republic (Kyrgyzstan). A survey was conducted in 2018 with a sample of 457 secondary school children aged 11-18-years-old in the Kyrgyz Republic. The results of multiple linear regression analysis showed that the psychological well-being of children was not significantly influenced when their parents were not divorced but did live separately. However, children with parents who lived abroad and were divorced did show a significant increase in their psychological distress wh ...Daha fazlası

Makale 2022 Fen Fakültesi Vulnerable Children and Youth Studies18 ( 1 ) 70 Görüntülenme

Natural Products/Bioactive Compounds as a Source of Anticancer Drugs

Fatih Ramazan İSTANBULLUGİL

Simple Summary Cancer is considered as a large group of diseases involving abnormal cell growth, which results in an alarming rise in the mortality rate at the worldwide level. Presently, the main point of interest in pharmaceutical research is the development of the novel and efficient anticancer drugs based on natural sources. In this regard, plants, and some microbial species, due to their composition, ecology, phytochemical, and ethnopharmacological properties, play a significant role. Accordingly, a series of plant-derived bioactive compounds are in the clinical development phase against ...Daha fazlası

İnceleme 2022 Veteriner Fakültesi Cansers24 ( 24 ) 28 Görüntülenme

Benzotiyofen@Pd as an efficient and stable catalyst for the electrocatalytic oxidation of hydrazine

Hilal DEMİR KIVRAK

An efficient methods for the synthesis of 2-(2,5-dimethylphenyl)-3-iodobenzo[b]thiophene (4) is described, and investigated its anode catalyst performance by using electrochemical methods (CV, CA and EIS). When 2-(2,5dimethylphenyl)-3-iodobenzo[b]thiophene (4) is applied, the specific activity is found as 25.811 mA/cm(2). Interestingly, when Palladium (Pd) is electrochemically deposited on the benzothiophene derivative, the catalytic activity increased the 80.930 mA/cm(2). This result is highest than the current metal based anode catalyst. Moreover, EIS and CA measurements display that Pd dope ...Daha fazlası

Makale 2022 Mühendislik Fakültesi Fuel328 61 Görüntülenme

Prediction of soccer clubs' league rankings by machine learning methods: The case of Turkish Super League

Abdullah Erdal TÜMER

The aim of this research is to predict league rankings through various machine learning models using technical and physical parameters. This study followed a longitudinal observational analytical design. The SENTIO Sports optical tracking system was used to measure the physical demands and technical practices of the players in all matches. Then, the data regarding the last three seasons of the Turkish Super League (2015-2016, 2016-2017, and 2017-2018), was collected. In this research, league rankings were estimated using three machine learning methods: Artificial Neural Networks (ANN), Radial ...Daha fazlası

Makale 2022 Meslek Yüksekokulu Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology ( Published online: 17 December 2022 ) 48 Görüntülenme

Investigation of Kyrgyz Learners’ Engagement in Online Courses

Gülşat MUHAMETJANOVA | Azat AKMATBEKOVA

This study aimed to investigate Kyrgyz learners' engagement in online courses. In this respect, the Student Engagement Scale and appropriate open-ended questions were employed in order to obtain data from learners. The sample covers 400 undergraduate learners studying at Kyrgyz-Turkish Manas University. The study has a mixed research design, hence both quantitative and qualitative approaches were employed. The results of the study revealed that behavioral engagement has a significant effect on learner achievement. The study also demonstrated that the engagement of Kyrgyz learners in online cou ...Daha fazlası

Makale 2022 Fen Fakültesi Open Praxis14 ( 2 ) 71 Görüntülenme

The Scientific Environment in the Period When Ibn Lahi'a (d. 174/790) Lived İbn Lehî‘a’nın (ö. 174/790) Yaşadığı Dönemde İlmî Muhit

Bekir TATLI

In this article we will focus on a famous rawī, named Ibn Lahīʿa. It is possible to find Ibn Lahīʿa, whose lineage is mentioned as ʿAbd Allah ibn Lahīʿa b. ʿUqba al-Miṣrī, frequently in early jarḥ-taʿdīl sources and muṣannaf works. But, especially from the view of ḥāadīth narrations and rijāl criticism, he is often mentioned negatively. For example, among the statements about his jarḥ-taʿdīl status, we find such expressions as “He is ḍaʻīf (weak).”, “He is ḍaʻīf al-ḥadīth.”, “His ḥadīths do not qualify to be used as evidence.”, “He is not qawī.” or similar expressions which have become widespr ...Daha fazlası

Makale 2022 İlahiyat Fakültesi Hitit Theology Journal / Hitit İlahiyat Dergisi21 ( 2 ) 42 Görüntülenme

Water is an effective additive to fuel oil to reduce the concentration of soot in the gas phase

Mirlan MOLDOBAYEV | Kubat KEMELOV | Zarlık MAYMEKOV

Soot is one of the products of incomplete combustion of hydrocarbon fuels. It has the property of adsorption of active and carcinogenic substances on the surface of soot particles. In this regard, in burner equipment of medium and small power, it is required to develop and implement effective environmental measures to reduce emissions of soot particles. In this paper, the fuel oil-water-air system at a wide temperature range (T500-3000K) was studied and the ratio of gas-liquid flows (water content in fuel oil 5-15) at the maximum entropy of the system and the formation of soot in flue gases wa ...Daha fazlası

Makale 2022 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)10 ( 2 ) 77 Görüntülenme

Asymptotics of the solution of the hyperbolic system with a small parameter

Asan ÖMÜRALİEV | Ella ABILAYEVA

Asymptotic study of singularly perturbed differential equations of hyperbolic type has received relatively little attention from researchers. In this paper, the asymptotic solution of the singularly perturbed Cauchy problem for a hyperbolic system is constructed. In addition, the regularization method for singularly perturbed problems of S. A. Lomov is used for the first time for the asymptotic solution of a hyperbolic system. It is shown that this approach greatly simplifies the construction of the asymptotics of the solution for singularly perturbed differential equations of hyperbolic type.

Makale 2022 Fen Fakültesi MANAS Journal of Engineering (MJEN)10 ( 2 ) 60 Görüntülenme

Kırgızistan’da Uzaktan Eğitime Yönelik Öğretmen Tutumlarının İncelenmesi

Mehmet Arif ÖZERBAŞ | Akmatali ALİMBEKOV | Erkan EFİLTİ | Yavuz Ercan GÜL | Kadiyan BOOBEKOVA

Bu araştırmada Kırgızistan’da uzaktan eğitime yönelik öğretmen tutumlarının incelenmesi amaçlanmıştır. Betimsel tarama modelindeki araştırmanın örnekleminde 3818 öğretmen bulunmaktadır. Çalışmanın verileri 2021-2022 eğitim öğretim yılında “Uzaktan Eğitim Tutum Ölçeği” ile toplanmıştır. Ölçek, Uzaktan Eğitimin Avantajları ve Uzaktan Eğitimin Sınırlılıkları adlı iki faktörden oluşmaktadır. Verilerin analizinde betimsel istatistikler, t-testi ve ANOVA analizleri kullanılmıştır. Elde edilen bulgulara göre, araştırmaya katılan öğretmenler uzaktan eğitimin sınırlılıklarının, avantajlarına göre daha ...Daha fazlası

Makale 2022 Edebiyat Fakültesi MANAS Journal of Social Studies (MJSS) - MANAS Sosyal Araştırmalar Dergisi11 ( 3 ) 34 Görüntülenme

The Construction of Modern Aesthetics from A Historical Perspective and The Opportunity of Aesthetic Life Today

Barış MUTLU

Aesthetics became a basic philosophy branch/discipline with the book Aesthetica published by Baumgarten in the 18th century. Although aesthetics as a term is based on the concept of aisthanestai, which means to perceive and to sense in Greek, and aesthetics was a subject of philosophical discussion in this period, the fact that aesthetics became an independent philosophy discipline was realized with modern philosophy. Along with modern philosophy, the relation between beautiful and good we encountered in the Greeks, the essential value of beautiful that encompasses the whole of life was shatte ...Daha fazlası

Makale 2022 Edebiyat Fakültesi MANAS Journal of Social Studies (MJSS) - MANAS Sosyal Araştırmalar Dergisi11 ( 3 ) 42 Görüntülenme

Detaylı Arama

Filtreler

Koleksiyon [8]

Araştırmacılar [34]

BM Sürdürülebilir Kalkınma [16]

Fakültesi / Enstitütü [14]

Yayın Türü [6]

Yayımlanma Yılı [1]

Dil [4]

Kaynak [35]

Veri Tabanları [35]

İndex Türü [8]

İndex Türü 2 [2]

Yayıncı [34]

Bölümü [35]

Ulusal/Uluslararası [2]

Konu Başlıkları [35]

Mustafa DOLAZ

Mustafa DOLAZ

Gülşat MUHAMETJANOVA

Fatih Ramazan İSTANBULLUGİL

Hilal DEMİR KIVRAK

Abdullah Erdal TÜMER

Gülşat MUHAMETJANOVA | Azat AKMATBEKOVA

Bekir TATLI

Mirlan MOLDOBAYEV | Kubat KEMELOV | Zarlık MAYMEKOV

Asan ÖMÜRALİEV | Ella ABILAYEVA

Mehmet Arif ÖZERBAŞ | Akmatali ALİMBEKOV | Erkan EFİLTİ | Yavuz Ercan GÜL | Kadiyan BOOBEKOVA

Barış MUTLU