The heterogeneity of CD4+ T cells has been investigated since the late 1970s, when their Th1 and Th2 subsets were coined. Later studies on the cutaneous form of the Leishmaniasis were focused on the experimental models of Leishmania major infection using the susceptible BALB/c and the resistant C57BL/6 mice. At the early 21st century, the regulatory T-cells subpopulation was introduced and its ...

Asset prices have played a prominent role in the present business cycle, both in terms of the amplitude of their fluctuations and because of their impact on financial institutions and economic activity. Such medium-term swings are of course not new; the last similar episode took place in the early 1970s. What has drawn attention to the recent asset price movements is not only their absolute siz...

Executive Summary This paper analyzes exchange rate regimes implemented by the major Latin American countries since the Second World War, with special attention to the period of the second globalization process beginning in the 1970s. A central argument is that exchange rate policy has played a significant role in shaping many of the macroeconomic outcomes observed during these decades. The cho...

This article examines the growth of waste and recycling sector in Sweden since 1970s seeks to identify conditions for market underlying business dynamics. The identifies a slow pattern at aggregate level 1970s, while major shift toward higher rates took place only mid-1990s. Resembling findings existing studies German US industry counterparts, Swedish companies grew larger more knowledge-intens...

Tropospheric reactive gaseous chlorine (Cly) impacts the atmosphere's oxidation capacity with implications for chemically reduced gases such as methane. Here we use Greenland ice-core records of chlorine, sodium, and acidity, global model simulations to show how tropospheric Cly has been impacted by anthropogenic emissions since 1940s. We that contribution nonsea-salt significantly influenced t...

Duality theory emerged from the work by Marshall Stone [18] on Boolean algebras and distributive lattices in the 1930s. Later in the early 1970s Larisa Maksimova [10, 11] and Hilary Priestley [15, 16] developed analogous results for Heyting algebras, topological Boolean algebras, and distributive lattices. Duality for bounded, not necessarily distributive lattices, was developed by Alstir Urquh...