4. Tetrahydropteroylglutamate is a competitive inhibitor of the cofactor activity of extract of heated E. coli, and of tetrahydropteroyltriglutamate and its N5-formyl derivative. It also inhibits the activity of the N10-formyl compound. In all cases the inhibition is overcome by the addition of cobalamin. 5. The cofactor activity of tetrahydropteroylglutamate and tetrahydropteroyltriglutamate i...

An explanatory model of adolescent problem behavior (problem drinking, cigarette smoking, and general delinquency) based on protective and risk factors in the individual and in 4 social contexts (family, peer group, school, and neighborhood) is employed in school-based samples from the People’s Republic of China (N5 1,739) and the United States (N5 1,596). Despite lower prevalence of the proble...

, if m = n. It is a classical result of Landau [5], (see Moon [6], Ford and Fulkerson [3]) that the above conditions are both necessary and sufficient for existence of a complete digraph on [n] whose (size-ordered) out-degree sequence is s . Such a digraph is interpreted as an outcome of a round-robin tournament, with [n] as the set of players, and s comprised by scores put in order of increase...

We have computed the free energy profiles of the deprotonation reactions of lumiflavin in the semiquinone and fully reduced oxidation states using constrained DFT-based molecular dynamics simulations. In the semiquinone state, the N5 nitrogen atom and the N1 nitrogen atom can become protonated. We find, in agreement with experiment, that the N5 site is the predominant proton acceptor in the sem...

In order to increase in chickpea quality and agroecosystem sustainability, field experiments were carried out in 2007 and 2008 growing seasons. In this research the effects of different organic, chemical and biological fertilizers were investigated on grain yield and quality of chickpea. Experimental units were arranged in split-split plots based on randomized complete blocks with three replica...

Rates of nitrogen application were studied in relation to commercial yield and fruit quality of cucumber plants (Cucumis sativus L. cv. Bunex). All plants were grown under controlled conditions in a greenhouse. Treatments consisted of the application of N as KNO3 (N1, 2.5 g m-2; N2, 5 g m-2; N3, 10 g m-2; N4, 20 g m-2; and N5, 40 g m-2). The fruits of cucumber from the N3 and N4 treatments were...

We describe an algorithm to find maximum-weight digitally convex regions in gray-scale images. After Christ et al. [CPS10] gave a system for consistent digital line systems, the question how to transfer the concept of convexity to digital regions naturally appeared. The regions computed using this definition are weight-maximal, the computational complexity of our algorithm amounts to O(n5 · log...

Remediation of a serious lack in reading fluency often takes the form of repeated reading exercises. The present study examines whether transfer of training effects to untrained (neighbour) words can be enhanced by training with an orthographic focus as compared with emphasising semantics. The effect of oral versus silent reading during training is studied as well. Two groups of reading-disable...