Added Value Is Still Unclear

Cytokines and sleep - still an unclear relationship.

Wakefulness and sleep-wake-regulation are complex states, a lot of different components and regulatory mechanisms contribute to these functions. One of the factors involved in sleep wake regulation is the immune system, itself being highly complex, consisting of humoral and cellular components. Molecules that transport the information are, beside others, the “immunotransmitters”, the cytokines....

The Added Value of Value Added Tax

Raising domestic tax revenues is a priority for most sub-Saharan African countries. But the tax bases in most African countries are undermined by widespread tax avoidance and evasion. A new study from CMI supports the claim that improved knowledge about the tax system makes a difference in people’s willingness to pay tax. The study shows that exposure to Value-AddedTax (VAT) makes people take a...

Where is the Value in Value-Added Modeling? White Paper

Leptin and insulin resistance: good, bad, or still unclear?

TO THE EDITOR: the article by Paz-Filho et al. (13) addresses the potential changes in insulin sensitivity in patients with congenital leptin deficiency while on leptin therapy and off leptin therapy. Using the hyperinsulinemic euglycemic clamp technique, the investigators showed an increase in whole body glucose disposal during a period of leptin withdrawal compared with a period of active the...

value added tax and tax evasion

The phenomenon of tax evasion has been always one of the most major issues among economists due to it's devastating effects on the economy and the process of economic development. Many scholars have always sought to provide solutions to reduce and limit tax evasion. The introduction of the VAT system can be seen as a milestone in the area of economic transparency and tax evasion, which refers t...