In this note, we show that the opposite of a multiparameter CCR flow is flow. We also exhibit an example which not cocycle conjugate to its opposite. This in sharp contrast one parameter situation.

Cinnamoyl co-enzyme A reductase (CCR), one of the key enzymes involved in the biosynthesis of monolignols, has been thought to catalyze the conversion of several cinnamoyl-CoA esters to their respective cinnamaldehydes. However, it is unclear which cinnamoyl-CoA ester is metabolized for monolignol biosynthesis. A xylem-specific CCR cDNA was cloned from aspen (Populus tremuloides) developing xyl...

This paper is concerned with the page migration (or file migration) problem [BS89] as part of a large class of on-line problems. The page migration problem deals with the management of pages residing in a network of processors. In the classical problem there is only one copy of each page which is accessed by different processors over time. The page is allowed to be migrated between processors. ...

partially supported by NSF grant CCR and NSF grant CCR Internet kim cs williams edu yInternet luca src dec com zInternet castagna dmi ens fr xJonathan Eifrig Scott Smith Valery Trifonov Contact Scott Smith Research partially supported by NSF grant CCR and AFOSR grant F Internet scott cs jhu edu partially supported by NSF grants CCR and CCR Internet leavens cs iastate edu kInternet benjamin pier...

Let Gn,m,k denote the space of simple graphs with n vertices, m edges and minimum degree at least k, each graph G being equiprobable. Let G have property Ak if G contains b(k − 1)/2c edge disjoint Hamilton cycles, and, if k is even, a further edge disjoint matching of size bn/2c. For k ≥ 3, Ak occurs in Gn,m,k with probability tending to 1 as n →∞, when 2m ≥ ckn for some suitable constant ck. ∗...

We provide an overview of research related to environmental effects of disposal of coal combustion residues (CCR) in sites in the United States. Our focus is on aspects of CCR that have the potential to negatively influence aquatic organisms and the health of aquatic ecosystems. We identify major issues of concern, as well as areas in need of further investigation. Intentional or accidental rel...

Preventing ice crystallization by transforming liquids into an amorphous state, vitrification can be considered as the most suitable technique allowing complex tissues, and organs cryopreservation. This process requires the use of rapid cooling rates in the presence of cryoprotective solutions highly concentrated in antifreeze compounds, such as polyalcohols. Many of them have already been inte...

We consider several problems related to the use of resolution-based methods for determining whether a given boolean formula in conjunctive normal form is satisfiable. First, building on work of Clegg, Edmonds and Impagliazzo, we give an algorithm for satisfiability that when given an unsatisfiable formula of F finds a resolution proof of F , and the runtime of our algorithm is nontrivial as a f...