35 research outputs found
The Life of Nasir al-Din al-Hilli al-Kashi, a Little-Known Commentator of the Tajrid al-Aqa'id Literature, His Academic Lineage, and His Works
No full textA leading commentary of Nasir al-Din al-Tusi's Tajrid al-'aqa'id is Shams al-Din al-Isfahani's commentary Tasdid al-qawa'id fi Sharh Tajrid al-'aqa'id . The first annotation (hashiya) of this commentary belongs to Nasir al-Din al-Hilli, who remains largely unknown even now. This book has another important distinction, namely, al-Sayyid al- Sharif al-Jurjani's annotation, the most famous and widespread annotation of Tasdid al-qawa'id, both benefited greatly from and frequently criticized it. The large number of al-Hilli's works found in Istanbul's libraries also shows that he was a well-known figure among the city's scholars. Nevertheless, this Imami Shiite scholar's biography has been neglected until today. This research note introduces an intellectual biography of al-Hilli. Although he and al-Allama al-Hilli were fellow townsmen and contemporaries, the information about his life, teachers, and students is very limited. This article seeks to enrich this limited biographical information by providing information about his works.https://doi.org/10.12658/Nazariyat.5.1.A0002e
A content analysis of scientific studies on recreation on disabled individuals in Turkey (2001-2020)
No full textBu çalışma Türkiye'de rekreasyon alanında engelli gruplar üzerine yapılan bilimsel çalışmaların analiz edilmesi ve analiz sonucunda hangi alanlarda eksikliğin olduğunu tespit etmek amacıyla yapılmıştır. Araştırmada kaynak taraması yöntemi kullanılmıştır. Türkiye'de 25 ilde yapılmış toplamda 83 akademik çalışma (15 doktora tezi, 48 yüksek lisans tezi ve 20 makale) incelenmiştir. İncelenen çalışmaların 41'i nicel, 37'si nitel ve 5'i karma desen çalışmalarıdır. Yapılan incelemede, 2003 öncesi herhangi bir çalışmanın olmadığı ve çalışmaların büyük bir bölümünün (%77,14) 2010 ve sonraki yıllarda yapıldığı tespit edilmiştir. İncelenen çalışmalarda örneklem büyüklüğü ise ağırlıklı olarak 40 ve altı (%66,25) katılımcının olduğu saptanmıştır. Yapılan incelemede yazar sayısına göre dağılımı incelendiğinde ağırlıklı olarak (%83,14) bir yazarlı olduğu tespit edilmiştir. İncelenen çalışmalar sonucunda genel olarak engelli bireylere yönelik yapılan rekreatif ve sportif etkinlikler engelli bireylerin başta sağlık problemlerini azaltmada, kendini zinde hissetmede ve en önemli olgu olarak yaşam kalitelerini arttırmada pozitif yönlü katkı sağladığı görülmektedir. Araştırmanın sonucunda; yapılan çalışmaların büyük çoğunluğunun son yıllarda olduğu, en fazla tek yazarlı çalışmalar ve yüksek lisans tezi olduğu, nicel ve nitel yöntemin dengeli sayıda olmasının yanında karma yöntemin çok az kullanıldığı, yapılan çalışmaların büyük çoğunluğunun Beden Eğitimi ve Spor Ana Bilim Dalı'nda yapıldığı ve zihinsel engelliler üzerine olduğu görülmüştür.This study was carried out in order to analyze the scientific studies on disabled groups in the field of recreation in Turkey and to determine in which areas there are deficiencies as a result of the analysis. Source scanning method was used in the research. A total of 83 academic studies (15 doctoral dissertations, 48 master's theses and 20 articles) conducted in 25 provinces in Turkey were examined. 41 of the examined studies are quantitative, 37 qualitative and 5 mixed design studies. In the examination, it was determined that there was no study before 2003 and that most of the studies (77,14%) were carried out in 2010 and later years. The sample size of the studies examined was predominantly 40 and below (66.25%) participants. When the distribution according to the number of authors is examined, it has been determined that there is predominantly (83.14%) one author. As a result of the studies examined, it is seen that the recreational and sportive activities made for disabled individuals in general contribute positively to reducing the health problems of the disabled individuals, making them feel fit and increasing their quality of life as the most important phenomenon. As a result of the research; Most of the studies are in recent years, mostly single-authored studies and master's thesis, quantitative and qualitative methods are balanced in number, mixed method is used very little, most of the studies are done in the Department of Physical Education and Sports, and people with mental disabilities are mentally handicapped. Was found on
Improving structural, tribological and electrochemical properties of Ti6Al4V alloy with B-doped TiO2 thin films
No full textB-doped TiO2 coatings with different B:Ti molar ratios were produced on Ti6Al4V alloy by a sol-gel dip-coating in order to improve tribological and electrochemical properties of Ti6Al4V. The properties of films were evaluated by XRD, XPS, SEM, surface tension-meter, tribotester and EIS. The highest roughness and hardness were obtained from B:Ti molar ratio of 2:1 TiO2 thin-film. TiO2 and B-doped TiO2 improved the wear resistance. While the mean CoF of Ti6Al4V was 0.39, TiO2 films reduced CoF significantly. B-doped TiO2 showed higher wear resistance than substrate and TiO2 film. Corrosion resistance was enhanced by TiO2 and the increasing B molar ratio provided improvement. The surface state changed after coatings. While TiO2 film showed hydrophobic behavior, B-doped all films exhibited hydrophilic characteristics
The effect of plasma nitriding temperature on the electrochemical and semiconducting properties of thin passive films formed on 316 L stainless steel implant material in SBF solution
No full textIn this study, 316 L stainless steel samples were nitrided plasma at temperatures of 350, 400 and 450 degrees C for 2 h under a gas mixture of 50% N-2-50% H-2. The effect of plasma nitriding temperature on the corrosion performance and semiconductor properties of the passive film on the 316 L stainless steel was evaluated in simulated body fluid (SBF) using electrochemical test and Mott-Schottky analysis. In literature study, the effect of plasma nitriding temperature on corrosion behavior of 316 L stainless steel was evaluated in solutions of NaCl, H2SO4 and acidic for biomedical applications. However, corrosion studies are more suitable to test in simulated body solution. Also, there are no enough studies on the effects of plasma nitriding temperature on semiconductor properties of the passive film obtained on film 316 L stainless steels in SBF solution. So, in this study the effects of plasma nitriding temperature on the electrochemical and semiconducting properties of thin passive films formed on 316 L stainless steel implant material in SBF solution at 37 degrees C were investigated. The effects of microstructure and phase structure on corrosion properties of samples were determined. The results showed that the phase composition and microstructure of the treated samples were affected from the nitriding temperatures. It was obtained that s-phase formed at the lower temperature than 400 degrees C. According to electrochemical test results, the plasma nitriding process at 350 degrees C was the most suitable process condition for improving the corrosion resistance in SBF. All oxide films showed p-type (acceptor) semiconductor behavior at low potentials and n-type (donor) behavior at high potentials. (C) 2014 Published by Elsevier B.V
Nicotinamide Riboside Preserves Ovarian Injury in Experimental Sepsis Model in Rats
No full textObjective: The aim of the study is to investigate the protective effects of nicotinamide riboside on oxidative stress in an experimental sepsis model created by cecal ligation and puncture. Materials and Methods: Rats were divided into 3 groups randomly: sham-operated (control) group, sepsis group, and nicotinamide riboside-treated group. Sepsis model-induced cecal ligation and puncture was applied to sepsis group rats. Animals in the nicotinamide riboside-treated group were administered nicotinamide riboside intraperitoneally (500 mg/kg). Tissue specimens from rats were biochemically calculated for their activities of catalase, superoxide dismutase, glutathione peroxidase, myeloperoxidase, and malondialdehyde levels. Ovarian tissues of all rats were histopathologically evaluated. Results: Catalase, superoxide dismutase, and glutathione peroxidase activities were lower in the sepsis group compared to the sham-operated (control) group. Superoxide dismutase activity was significantly higher in the nicotinamide riboside-treated group than in control and sepsis group (P < .05). Myeloperoxidase activities and mean malondialdehyde concentration of ovarian tissue were lower in nicotinamide riboside-treated group than in sepsis group (P < .05). The light microscopic assessment revealed that ovarian tissue was protected, and inflammation and interstitial edema decreased in nicotinamide riboside-treated group. The follicular damage findings were notably decreased in nicotinamide riboside-treated group in comparison to sepsis group (P<0.05). Conclusion: Our findings indicated that nicotinamide riboside diminished ovarian injury in sepsis via inhibiting tissue infiltration and increasing endogenous antioxidant capacity. Nicotinamide riboside administration may represent a new treatment approach for the prevention of sepsis-induced ovarian injury
A classification of 1-well-covered graphs
No full textA graph is well-covered if all its maximal independent sets have the same size. If a graph is well-covered and remains well-covered upon removal of any vertex, then it is called 1-well-covered graph. It is well-known that [n/2] + 1 = 1 and vertical bar G vertical bar = n. We further present some combinatorial properties of such graphs. In particular, we provide a tight upper bound on the size of those graphs in terms of k, namely vertical bar G vertical bar <= 10k - 2, also we show that Delta(G) <= 2k + 1 and alpha(G) <= min{4k - 1,n - 2k}. This particularly enables us to obtain a characterization of such graphs for k = 1, which settles a problem of Levit and Mandrescu [14].TUBITAK (The Scientific and Technological Research Council of Turkey) [121F018]This research has been supported by TUBITAK (The Scientific and Technological Research Council of Turkey) under the project number 121F018. The author would like to thank the anonymous referee for useful suggestions that improved the presentation of this work. The author also would like to thank Mehmet Akif Yetim for many helpful discussions
Fatty Acid Composition of Muscle, Skin and Depot Lipids of Domestic Geese (Anser Domestica) in Altıntaş Region at the Period of extreme Low Temperate Winter
No full textİnvestigation of the relationship between emotional quotient levels and academic achievement of candidate teacher of pyhsical education and sports
No full textInvestigation of the relationship between emotional quotient levels and academic achievement of candidate teacher of physical education and sports
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