Different constructions by Cooke, Harper and Zabrodsky and by Cohen and Neisendorfer produce torsion free finite p-local H-spaces of rank l < p−1. The first construction goes through when l = p− 1 and we show the second does as well. However, the space produced need not be an H-space. We give a criterion for when an H-space is obtained. In the special case of rank 2 mod-3 H-spaces, we also give...

NAD(P)H is well known as a major cellular source of reducing potential, important for many catabolic and biosynthetic reactions. However, NAD(P)H may also serve as a substrate for covalent protein modification or as a precursor of biologically active compounds, including cyclic ADP-ribose (cADPR) and nicotinic acid adenine dinuclotide phosphate (NAADP+). cADPR and NAADP+ participate in cytosoli...

This special volume of The Journal of Experimental Biology celebrates the scientific contributions of Professor Simon H. P. Maddrell, with articles drawn from world leaders in the field of insect osmoregulation. It is thus fitting to describe Simon’s career in a little detail. For those who wondered about his initials, Simon Hugh Piper Maddrell was born in December 1937 in Birmingham, UK. His s...

objective(s): htlvi-1 is the first human retrovirus with limited endemic regions in the world. the epidemiological studies have shown that the genetic background and immune response to the virus have a significant role in htlv-i-associated diseases.  among the genes are involved in htlv-i infection, the role of human leukocytes antigen (hla) have been studied in different population. in the pre...

Mobile broadcast services have experienced a strong boost in recent years through the standardization of several mobile broadcast systems such as DVB-H, ATSC-M/H, DMB-T/H, and CMMB. However, steady need for higher quality services is projected to surpass the capabilities of the existing mobile broadcast systems. Consequently, work on new generations of mobile broadcast technology is starting un...

Theoretical Computer Science is blessed (or cursed?) with many open problems. For some of these questions, such as the P vs NP problem, it seems like it could be decades or more before they reach resolution. So, if we have no proof either way, what do we assume about the answer? We could remain agnostic, saying that we simply don’t know, but there can be such a thing as too much skepticism in s...