Cyclicality troughs

Triphenodioxazines 411 Triphosphate (cyclic) 172 Tripolyphoqjhate 172 Trisacchaiic 331 Triterpene 70,206,210,211,430 -, alcohols 404 -, derivatives 43 -, glycosides 62 Triton X-100 108 Trough chambers 125 Tryptamine 76, 98,254, 364 Tryptophan 76,246, 364 Tungsten cations 398 Tungsten incandescent lamp 21,22 Twin-trough chamber 87,126 T)framine 355... 

The acute cyclicality of the commodity petrochemical industry s profitability makes it a difficult business for investors to evaluate the lack of steady earnings means that investors tend to undervalue commodity chemical companies at the trough and overvalue them at the peak (see also Chapter 2). It is also a difficult business for chemical companies to manage, in that timing of investments is both of critical importance to profitability and extremely difficult to get right. 

When investment was constrained during a price trough, price cyclicality in the resulting simulation was similar to that observed in actual chemical industries... 

On the computational front, Latajka and Scheiiier considered an extensive region of the entire potential energy surface as a function of the two angles which describe the orientations of the two molecules, as well as the internitrogen distance. The only true minimum located on this surface corresponded to a cyclic structure in which the two H-bond-ing protons are displaced 42° from the N N axis. A very shallow trough leads from this... 

Cyclical deposits of sandstone, shale and coal. Each cycle starts with a massive sandstone bed featuring large-scale trough cross-bedding and shale clasts at the base. Fossil leaves of Glossopteris and petrified tree trunks up to 60 cm in diameter are common, many are still upright. A quartz-pebble conglomerate occurs at the base of this formation Disconformity... 

It would be logical to seek an interpretation of the cyclical alteration of free SH during cell division in terms of the regulation of cell metabolism, and this indeed was Rapkine s inclination. A considerable literature exists dealing with cell respiration in the course of cell division (22). Much less work has been done on other types of enzyme activity. Students of the problem were predisposed to find respiratory increases associated with what appears visually as the work of cell division, but the results have been conflicting (23, 24). Recently, Zeuthen (25) has investigated the problem with the aid of a very sensitive Cartesian Diver respirometer. He has observed a small peak in the respiratory rate associated with each division cycle. The peaks of the respiratory fluctuation are associated with the periods when reconstituted nuclei are observable, the troughs with the period of mitosis itself, when the nuclear membranes are absent. 

Saito, H. and Suzuki, N. (2010) Distribution of acyclic and cyclic biphytanediols in recent marine sediments from lODP site COOOl, Nankai Trough. Org. Geochem., 41, 1001-1004. 

Horizontal Touch Cyclic Voltammetry with a Condensed Monolayer of a Cyclodextrin Derivative. To obtain experimental evidence supporting that such a mode of permeability control is possible, an approach based on horizontal touch cyclic voltammetry was carried out for a condensed monolayer of 4, which was formed at the air/water interface in a Langmuir trough 14), This technique, first used by Fujihira (25) and recently sophisticated by Bard (2d, 27), enables the investigation of the electrochemical properties of oriented monolayers at varying packing densities under an appropriately controlled surface pressure. 

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