A morphism f’ : C’ + C” of supple- mented coafgebras is a morphism of coalgebras such tilat rl(C”)f = @C’). Fsr a natural number n, the coalgebra C is n-connected if ccc), is an isQmorphism for q G n.

a number of specific rock types including silicates (e.g., Pollack et al. 1973, Aronson and Strong 1975) and lime-stone (Querry et al. 1978). Recently optical constants for palagonite, typically a poorly …

1. Introduction When the United States escalated it involvement in the Vietnam War in 1965, one of the two fighters the Navy and the Marine Corps utilized was the F-8 Crusader (Figure 1). Each of the five …

Encoding and studying combinatorial objects by means of zero-dimensional ideals and Gr ̈obner bases has a long history; see [2, 7, 11, 13, 15, 17, 19] for a non-exhaustive selec-tion. In particular [13] …

CAUTION: Not all quaternion de nitions are the same. Some authors write the products as ib instead of bi, and therefore they get the property k = ji = ij, which results in a left-handed Cartesian ...

ILC is the second most common histologic subtype of breast cancer after invasive ductal cancer (IDC), which is also known as invasive ductal carcinoma of no special type (IDC/NST). ILC is often a low …

Gli effetti nocivi del particolato atmosferico sulla salute e sull’ecosistema, messi in luce da studi sempre più ampi ed approfonditi, la difficoltà di mantenere le sue concentrazioni al di sotto dei limiti imposti …