نتایج جستجو برای: substitution effect

تعداد نتایج: 1688571  

Journal: Iranian Economic Review 2016

Abstract The aim of this study is of the effect of structural changes in higher education on changes of output in Sistan and Baluchestan Province using structural decomposition analysis (SDA). The input-output tables of this region for the period 2006-2011 have been employed as the database of the model. The structural changes were decomposed into two factors: changes in share of specific sect...

2015
A Kumar D Goswami

We report the effects of zinc metal substitution on the molecular dynamics of protoporphyrin-IX in dichloromethane solvent by spectrally resolving the femtosecond photon echo spectrum. We have found that the coherence and population dynamics change due to the presence of Zn metal in the protoporphyrin-IX system. Zinc metal reduces the conformational disorder in the molecular structure of protop...

2011
Vassiliki Psimouli Vassiliki Oreopoulou

The effect of the level of fat substitution in cakes as well as the type of fat replacer on the textural behaviour of the product was investigated by instrumental and sensory analysis. Samples, which were varying in levels (35, 65 and 100%) and types (carbohydrate or protein based) of fat substitution were subjected to a compression test and the obtained stress strain, sigmoid curves were fitte...

2012
Elke Jahn Enzo Weber

This paper fills a gap in the literature by investigating whether temporary agency employment substitutes regular employment. To take into account the interaction between the two employment forms, we identify a SVAR model with correlated innovations by volatility regimes. We show that a positive shock to temporary agency employment increases overall employment, but also leads to substitution of...

2005
Sara Borelli

The aim of this paper is to evaluate the impact of a wage increase on Qat consumption for the Djiboutian mail household head using a static framework. In particular, by using a system of simultaneous of equations with Qat consumption and Wage as endogenous variables, the paper estimates whether a wage increase will affect Qat consumption. Our findings suggest that the impact of wage on Qat cons...

Journal: :Journal of substance abuse treatment 2006
Nicolas C Clark Paul Dietze Michael G Lenné Jennifer R Redman

Forty opioid substitution patients (methadone, n = 14; LAAM, n = 14; and buprenorphine, n = 12) who were participating in a study on the impact of opiate substitution treatment on driving ability and 22 non-opiate-using control subjects were administered 14.7 g/70 kg of alcohol in two separate sessions, one 2-3 hours before opioid pharmacotherapy dosing and the other 1-2 hours after dosing. The...

Journal: :Zeitschrift fur Naturforschung. Section C, Biosciences 1974
W Lohmann

The ultraviolet absorption spectra of uracil and its 5-halogenated derivatives have been in­ vestigated in regard to the electron attracting properties of the substituents. It could be shown that the position of the two absorption bands is proportional to the inverse of the electronegativity; the extinction coefficients are a linear function of the electron affinities. In this way, the red shif...

2001
Pingchiang C. Lyu Ping Chuan Wang

The amino acid glycine strongly destabilizes a-helical structure in proteins as well as in model helical peptides. We have investigated the role of a single glycine substitution in a helical host peptide system. Quantitatively, a single glycine leucine substitution has about one-third of the effect on the stability of helix as does triple substitution of these residues in the middle of the heli...

2016
Siriporn Okonogi Ornchuma Naksuriya Suporn Charumanee Jakkapan Sirithunyalug

Curcumin, a poorly water-soluble bioactive compound, was successfully loaded into three different aromatic contents of hydroxypropylmethacrylamide (HPMA)-based polymeric micelles in order to develop water-soluble curcumin nanoformulations (Cur-Nano). The stability study of Cur-Nano was done by keeping the formulations at 4, 30, and 40 °C for 90 days. The physical appearance, curcumin remaining,...

Journal: :Carbohydrate research 2005
Hua-Cai Ge Deng-Ke Luo

Carboxymethyl chitosan was prepared by reacting chitosan with chloroacetic acid in water under microwave irradiation. The effect of the reaction conditions was investigated and optimal conditions were identified. The influence of mass ratio of chloroacetic acid to chitosan, microwave power and pH on the degree of substitution or intrinsic viscosity were further studied. The degree of substituti...

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