1930 yılından günümüze uzanan aerojeller; Guinness rekorlar kitabına giren en hafif ve katı malzeme olarak seçilmiştir. Yüksek ısıl absorbsiyon özelliği, çok iyi yalıtkanlık kabiliyeti, mezo gözenek yapısı mukavemetinin yüzey alanının yüksek olması gibi üstünlüklerinin birçok malzemeye alternatif kullanım avantajı sektörde olanağı sunmaktadır. Bu çalışmada, sol-jel tekniği kullanılarak saflıkta...

The Determinants of Motherhood and Work Status: A Survey In this paper we present important empirical evidence regarding recent trends in women’s participation and fertility in European countries, and provide several interpretations of the differences across countries. Several recent analyses have considered labour supply and fertility as a joint decision and have explicitly taken into account ...

Through this paper, we have attempted to model the demand for di¤erent classes of antibiotics used for respiratory infections in outpatient care in Switzerland using a spatial version of the linear approximate Almost Ideal Demand System (AIDS) model. This model takes spatial dependency into account by means of spatial lags of antibiotic budget shares. We control for the health status of patient...

We consider the modelling of volatility on closely related markets. Univariate fractional Ž . volatility FIGARCH models are now standard, as are multivariate GARCH models. In this paper, we adopt a combination of the two methodologies. There is as yet little consensus on the methodology for testing for fractional cointegration. The contribution of this paper is to demonstrate the feasibility of...

Why Are Fertility and Women’s Employment Rates So Low in Italy? Lessons from France and the U.K. According to the agenda for employment set by the EU in 2000 for the following ten years, the target for female employment was set at 60 per cent for the year 2010. While Northern and most Continental countries have achieved this quantitative target, the Mediterranean countries are lagging behind. L...

Rejecting Capital-Skill Complementarity at all Costs Any serious empirical study of factor substitutability has to allow the data to display complementarity as well as substitutability. The standard approach reflecting this idea is a translog specification – this is also the approach used by numerous studies analyzing the relative capital-skill complementarity hypothesis formulated by GRILICHES...

Any serious empirical study of factor substitutability has to allow the data to display complementarity as well as substitutability. The standard approach reflecting this idea is a translog specification – this is also the approach used by numerous studies analyzing the relative capital-skill complementarity hypothesis formulated by GRILICHES (1969). According to this hypothesis, the degree of ...

We have previously identified and characterized three distinct trout C3 proteins (C3-1, C3-3 and C3-4) that differ in their electrophoretic mobility, glycosylation patterns, reactivity with monospecific C3 antibodies, partial amino acid sequence and binding to various complement activators. To study the structural elements that determine the observed functional differences, we have cloned and s...