Nested cooperativity

O. Yifrach and A. Horovitz, Nested cooperativity in the ATPase activity of the oligomeric chaperonin GroEL. Biochemistry 34, 5303-5308 (1995). 

The phase transition consists of a cooperative mechanism with charge-ordering, anion order-disorder, Peierls-like lattice distortion, which induces a doubled lattice periodicity giving rise to 2 p nesting, and molecular deformation (Fig. 11c). The high temperature metallic phase is composed of flat EDO molecules with +0.5 charge, while the low temperature insulating phase is composed of both flat monocations... 

Peeters, C. and Holldobler, B. (1995). Reproductive cooperation between queens and their mated workers The complex life-history of an ant with a valuable nest. Proc. Natl. Acad. Sci. USA, 92, 10977-10979. 

Most of the pioneering work on mammal primer pheromones was on social rodents such as house mice which are plural cooperative breeders (all females breed, although not all males). Female house mice suckle each other s young and cooperatively defend the nest. Characteristic of these societies is an interplay of dominance (in particular between males), sex, and population density. 

Fig. 7. Left panel Cooper pairs (—k, k) and electron-hole (Peierls) pairs (—k, —k + Q) for the n.n. tight binding Fermi surface (thick line) with perfect nesting vector Q. Saddle points (S) of 6(k) at (0, .7t) and ( 7T, 0) lead to DOS peak at the Fermi energy. Therefore unconventional pair states can only have nodes away from S, i.e., at the Dirac points D ( j, j) where the quasiparticle spectrum takes the form of eq. (54). This is the case for a

In cooperation with the Neste company, the Technical Research Centre of Finland (VTT) [37] prepared a comparative LCA for two diaper systems one of which is based on polyolefins (PP, PE) while the other uses PLA (made from maize, wheat and sugar beet). For most of the parameters studied, the polyolefin-based diaper shows better results than its biodegradable... 

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