Aynı geometriye sahip beton numuneler üzerinde yapılan bu deneysel araştırmada numune boyutu ile nominal basınç dayanımı arasında boyutunun artması dayanımın azaldığı sonucuna ulaşılmıştır. Bu olay ve betonarmenin kırılma mekaniğinde boyut etkisi olarak adlandırılmaktadır. Eksenel yükü altında Laboratuvar koşullarında üretilen değişik dayanımlarındaki küp numunelerde yükleri elde edilmiştir. Ul...

abstract financial crises and currency instabilities within developing and emerging economies during the last decade had a tremendous impact on the economic performance and increased vulnerability of economies against domestic and foreign shocks. the timing of capital liberalization is one of the significant debates among other issues related to currency instability, and it would be more conven...

A single form of tRNA(Trp) exists in the yeast cytoplasm to respond to the unique codon, UGG, which specifies this amino acid. Mutations in the anticodon of the corresponding gene, which generate potential nonsense suppressor tRNAs, have been generated in vitro and tested in vivo for biological activity. The amber (C35U) and opal (C34U) suppressors show strong and weak activities respectively w...

In this explorative study we examine factors explaining individual choice of lifestyle. The empirical analysis of smoking, exercising and diet show that the mechanisms determining people’s lifestyle are complex. We argue that the economic models on the demand for health is a meaningful framework for analysing this issue, but that it needs some refinements. A suggestion for further analytical wo...

To Study or to Work? Education and Labour Market Participation of Young People in Poland This paper proposes Heckprobit estimates of the determinants of labour market participation of a sample of young (15-30) Poles, controlling for the sample selection bias caused by excluding those in education. There is evidence of sample selection bias in the case of young men, suggesting that they obey mor...

This paper models a negative impact on the environment as one of the attributes of transport mode. By this modeling, we are able to examine whether individual environmental consciousness of this impact has a significant effect on his/her choice of transport mode. A survey data from Saito and Onohara Area in Northern Osaka of Japan is used to estimate the model with the Heteroscedastic Extreme V...

Abstract—In the previous airfield construction industry, pavements made of reinforced concrete have been used very rarely; however, the necessity to use this type of pavements in an emergency situations justifies the need reference to this issue. The paper concerns the problem of airfield pavement dimensioning made of reinforced concrete and the evaluation of selected dimensioning methods of re...

This paper deals with the identification of treatment effects when the outcome variable is ordered. If outcomes are measured ordinally, previously developed methods to investigate the impact of an endogenous binary regressor on average outcomes cannot be applied as the expectation of an ordered variable, in its strict sense, does not exist, and a shift in focus to distributional effects is indi...