The modern concept of lightweight design (LW) requires the application different materials in one structure (multi-material structures). has a good perspective for automotive and aerospace industries but only if it is possible to achieve quality joint between materials. most used technology joining industry Resistance spot welding (RSW). Due mechanical, physical, chemical properties, by RSW doe...

BACKGROUND Bufothionine is an alkaloid in Cinobufacini (Huachansu). This study aims to investigate the effects of bufothionine on liver tumors and acute liver injury. METHODS In the hepatoprotective experiment, fifty rats were randomly divided into five groups (n = 10): normal saline group, model group, compound glycyrrhizin injection (9.14 mL/kg); cinobufacini injection (3.42 mL/kg) (InjA) a...

Tax credits have been a popular way to alleviate in-work poverty. The assumption is typically that the incidence is on the claimant workers. However, economic theory suggests no particular reason to believe that this should be the case. This paper investigates the incidence of the Working Families’Tax Credit in the UK introduced in 1999, which unlike similar tax credit policies was paid through...

In order to improve the anticancer activity of isocorydine (ICD), ten isocorydine derivatives were prepared through chemical structure modifications, and their in vitro and in vivo activities were experimentally investigated. 8-Amino-isocorydine (8) and 6a,7-dihydrogen-isocorydione (10) could inhibit the growth of human lung (A549), gastric (SGC7901) and liver (HepG2) cancer cell lines in vitro...

The paper studies the popular hypothesis that ”hiding” taxes from taxpayers, such as by nominally dividing the payroll tax between employees and employers, leads to higher taxes. To test the hypothesis, I analyze payroll taxes and pension spending in a sample of 89 countries and find that countries where employers nominally pay a higher share of the payroll tax tend to have lower taxes and smal...

In this paper is reported the study of the anti-cancer effect of Tanshinone and its mechanism of action in vivo. The proliferating kinetics of hepatic carcinoma H22 cells was measured in mice by in vivo bromodeoxyuridine (Brdu) labeling and immunohistochemical staining of the proliferating cell nuclear antigen (PCNA). The tumor inhibitory rates of Tanshinone were 50.0%, 38.5% and 40.6% in 3 exp...

This study focuses on explaining variations in real constant-quality house prices in jurisdictions located in multiple MSAs. Using a hedonic house price framework, we test competing theories of house price determination. Using two variants of the random coefficients model, we find that public school quality has a very large impact on real constant-quality house prices. Our results suggest that ...

Following the seminal work of late 19th century economist Etienne Laspeyres we analyse the incidence of the Prussian milling and butchery tax shortly before its repeal in 1875. A comparison of flour prices in cities which levied this tax with cities which did not reveals unusually strong tax overshifting. Modern theories which explain overshifting of a specific tax argue with quality improvemen...

We investigate whether late redistribution programs that can be targeted towards low income families, but may distort savings decisions, can “dominate” early redistribution programs that cannot be targeted due to information constraints. We use simple two-period OLG models with heterogeneous agents under six policy regimes: A model calibrated to the U.S. economy (benchmark), two early redistrib...

Beyond the Labour Income Tax Wedge: The Unemployment-Reducing Effect of Tax Progressivity In this paper we argue that, for a given overall level of labour income taxation, a more progressive tax schedule increases employment. From a theoretical point of view, higher progressivity increases overall employment through a wage moderating effect and also because employment of low-paid workers is mor...