BACKGROUND Clinacanthus nutans (Burm. f.) Lindau leaves are widely used by cancer patients and the leaf extracts possess cytotoxic and antiproliferative effects on several human cancer cell lines. However, the effect of C. nutans leaf extract on human melanoma, which is the least common but most fatal form of skin cancer and one of the most common cancers diagnosed in both sexes worldwide, is u...

For long it has been recognized that tumor necrosis factor alpha (TNFa) has anticancer characteristics, and its use as a cancer therapeutic was proposed already in the 1980s. However, its systemic toxicity has limited its usability. Oncolytic viruses, selectively cancer-killing viruses, have shown great potency, and one of their most useful aspects is their ability to produce high amounts of tr...

this study has investigated the long-run and short-run effects of relative productivity on real exchange rate using annual time series data of iran and its major trade partners over the period 1980-2005. to analyze such effect which refers to the balassa-samuelson effect, this research uses auto-regressive distributed lags (ardl) method, to deal with dynamics of the relationship between product...

Supermodularity has long been regarded as a natural notion of complementarities in individual decision making; it was introduced as such in the nineteenth century by Edgeworth and Pareto. But supermodularity is not an ordinal property. We study the ordinal content of assuming a supermodular utility, i.e. what it means for the individual’s underlying preferences. We show that supermodularity is ...

Does Gender Matter for Firm Performance? Evidence from Eastern Europe and Central Asia Using 2005 firm level data for 26 ECA countries, this paper estimates performance gaps between maleand female-owned businesses, while controlling for their location by industry and country. We find that female entrepreneurs have significantly smaller scale of operations (as measured by sales revenues) and are...

Why Is the Public Sector More Labor-Intensive? A Distortionary Tax Argument Government-run entities are often more labor-intensive than private companies, even with identical production technologies. This need not imply slack in the public sector, but may be a rational response to its wage tax advantage over private firms. A tax-favored treatment of public production precludes production effici...

Why Is the Public Sector More Labor-Intensive? A Distortionary Tax Argument Government-run entities are often more labor-intensive than private companies, even with identical production technologies. This need not imply slack in the public sector, but may be a rational response to its wage tax advantage over private firms. A tax-favored treatment of public production precludes production effici...

One of the explanations for global imbalances is the self-financing behavior of credit-constrained firms in rapidly growing emerging markets. We use an extensive firm-level data set from several Asian countries during 2002–2011, and test the micro foundation of this theory by estimating the effect of an exogenous change in credit constraints, resulting from financial reforms, on firms’ saving b...

Cet article vise à mettre en évidence les performances des secteurs agricoles dans principaux pays de l’UE (France, Allemagne, Italie, Pays-Bas, Espagne et Royaume-Uni). Basée sur la méthode comptes surplus, notre analyse performance inclut tous éléments du compte résultat, qui est l’une limites l’approche traditionnelle indices. De plus, cet...

firm size and its impact on the firm performance examined in all of economics historical periods from different point of view. meanwhile, productivity is one the most important performance index for each firm, therefore so many studies tries to survey firm size impact on it. in iran also, economics literature replete with productivity studies but the impact of size on it rarely seen between the...