Abstract Large band gap and high electron–hole pair recombination rate limits practical application of TiO 2 as a photocatalyst. Different methods are developed to remove or minimize the aforementioned limitations . In this study, nanoparticles were coupled with ZnO CdO address above-mentioned hence enhance photocatalytic activity , ZnTiO CdZnTiO nanocomposites synthesized by simple co-precipit...

This paper is a primer on the hedging and the risk management of CDO tranches. It intends to provide a global perspective on the current issues and refers to research papers for modelling and mathematical details. Though the basics of the risk management within the Gaussian copula model are not discussed, we review some issues which may eventually lead to the decline of the current market appro...

BACKGROUND The aim of this report was to review our early experience of the last 7 years with repairs of congenital duodenal obstruction (CDO) to determine the efficacy and outcomes of laparoscopic repairs compared to laparotomy. METHODS A retrospective review was conducted on all neonate (<30 days) with CDO between 2009 and 2015. Patients with duodenal atresia, stenosis, web, and annular pan...

The present structural revision of the title compound, tetra-cadmium tetra-sulfite hexa-hydrate, [Cd(4)(SO(3))(4)(H(2)O)(5)]·H(2)O, is a low-temperature upgrade (T = 100 K and R = 0.017) of the original room-temperature structure reported by Kiers & Vos [Cryst. Struct. Commun. (1978). 7, 399-403; T = 293 K and R = 0.080). The compound is a three-dimensional polymer with four independent cadmium...

Abstract Listeria monocytogenes (LM) is a pathogenic bacterium which can release 3-hydroxy-2-butanone (3H-2B) as biological indicator. We report high-performance 3H-2B gas sensing strategy for the selective detection of LM. This realized by n-CdO/n-SnO 2 hetero-nanofibers with controllable compositions, synthesized via facile one-step electrospinning method. The tailored morphologies and micros...

The aim of this paper is to use copulas functions to capture the different structures of dependency when we deal with portfolios of dependent credit risks and a basket of credit derivatives. We first present the wellknown result for the pricing of default risk, when there is only one defaultable firm. After that, we expose the structure of dependency with copulas in pricing dependent credit der...

In this work, nanostructured CdO films with different coumarin contents in the growth solution were fabricated on glass substrates by the SILAR method. The effects of coumarin content in the bath on optical, structural and morphological properties were studied by means of (UV–vis) spectrophotometer, SEM and XRD analysis. The analysis showed that the band gaps, surface morphologies and XRD peak ...

We review the pricing of synthetic CDO tranches from the point of view of factor models. Thanks to the factor framework, we can handle a wide range of well-know pricing models. This includes pricing approaches based on copulas, but also structural, multivariate Poisson and affine intensity models. Factor models have become increasingly popular since there are associated with efficient semi-anal...

In this paper, we focus on what we call “European Proxy” of structural models, or shortly “ProxyStructural models” for credit derivatives. In standard structural models, default arrives as the first hit of a stochastic process to a barrier, hence involving a path-dependent condition. In “Proxy-Structural models”, by contrast, the path condition modeling the default indicator function is replace...

Recent research is focused on few layered graphene (FLG) with various metal oxides (MOs) as (MOs; CeO2, CuO, SnO2, CdO, ZnO, and TiO2) nanocomposite materials are alternatives to critically important in the fabrication of solar cell devices. In this work, FLG different MOs nanocomposites were prepared by a novel eco-friendly viable ultrasonic assisted route (UAR). The FLG/MO performed character...