By monitoring the reactions in protic solvents with H NMR spectroscopy, it was established that the dehydration of the alcohol intermediate 2 constituted the rate-limiting step of the overall deoxygenation process.
Proper motion is the motion of a star across an observer's line of sight and constitutes the rate at which the direction of the star changes in the celestial sphere.
The starting point for actin filament assembly is the formation of a nucleus of three actin monomers, which is considered to constitute the rate-limiting step in vitro and in vivo.
This finding reveals that translocation and catalysis together constitute the rate-limiting steps in the nucleotide addition cycle.
We are therefore dealing with a concerted, one-step SNAr reaction, in which the formation of the Meisenheimer σ-complex constitutes the rate-limiting barrier, while its decomposition is barrier-free.
BSEP, constitutes the rate-limiting step in bile salt secretion, and therefore, BSEP is critical to maintain a low intracellular concentration of bile salts (Stieger et al. 2007; Stieger and Beuers 2011).
Under physiological conditions, Abcb11 constitutes the rate-limiting step in bile acid transport from the liver into the bile and subsequently intestine (Figge et al., 2004; Stieger, 2009; Stieger and Beuers, 2011; Zollner and Trauner, 2009), and its transgenic overexpression in mice increases bile flow by 30% and fecal bile acid content by more than 40% (Wang et al., 2010).
It constituted the lowest rating for the season thus far, and more than an eight percent drop from the previous week's episode, "Ron & Tammy: Part Two".
This allowable range of biomass generation constituted the high growth rate towards which robustness was assessed in this work.
The sample for the data collection consisted of 1256 respondents (out of 1657 who constituted the cohort, response rate 76%) [ 17].
It more than doubled the show's previously highest rating in the age group, and constituted the largest 18-49 rating for an NBC entertainment telecast in four-and-a-half years, since the tenth season finale of the medical drama series ER on May 13 , 2004
