in order to study the effects of conventional and conservation tillage with management residue on wheat physiological properties, a field experiment was conducted in 2013-2014 at mashhad agricultural and natural resources research center of razavi khorasan province. this experiment was carried out as split plot design based on a randomized complete block design with three replications. main plo...

The retro-aldol reaction at residue 8 of R106-1 produced a chemical handle, in the form of a sarcosine residue, that was amenable to classical aldol alkylation conditions. In vitro assay of several new hydroxylated analogs have shown that L isomers exhibit more potent antifungal activity than D isomers. However, all analogs exhibited a significant decrease in activity against Cryptococcus neofo...

Let k be an arbitrary field, Λ a k-algebra and V Λ-module. When it exists, the universal deformation ring R(Λ,V) of is whose local homomorphisms to R parametrize lifts up R⊗kΛ, where any complete, commutative Noetherian with residue field k. Symmetric special biserial algebras, which coincide Brauer graph can viewed as generalizing blocks finite type p-modular group algebras. Bleher Wackwitz cl...

Returning crop residue may result in nutrient reduction in soil in the first few years. A two-year field experiment was conducted to assess whether this negative effect is alleviated by improved crop residue management (CRM). Nine treatments (3 CRM and 3 N fertilizer rates) were used. The CRM treatments were (1) R0: 100 % of the N using mineral fertilizer with no crop residues return; (2) R: cr...

An old question of Erdős asks if there exists, for each number N , a finite set S of integers greater than N and residue classes r(n) (mod n) for n ∈ S whose union is Z. We prove that if ∑ n∈S 1/n is bounded for such a covering of the integers, then the least member of S is also bounded, thus confirming a conjecture of Erdős and Selfridge. We also prove a conjecture of Erdős and Graham, that, f...

in order to evaluate of pea, bean, lentil, wheat, rape and barley sensitivity to foramsulforun, rimsulforun and nicosulforun herbicides soil residue, a pot experiment was conducted at ferdowsi university of mashhad. experimental type was completely randomized design in factorial arrangement with three replications. treatments included herbicides (rimsulforun, foramsulforun and nicosulforun), he...

A 3- years (2015, 2016 and 2017) field study was carried out at National Wheat Research Program, Bhirahawa, Rupandehi, Nepal to evaluate the influence of crop residues and nitrogen levels on rice. The experiment was conducted in split plot design with three replications. Main plots were two crop residue levels (with crop residues of 30 cm wheat stubble and without crop residues) and sub plots c...

Let R be a commutative noetherian local ring and consider the set of isomorphism classes of indecomposable totally reflexive R-modules. We prove that if this set is finite, then either it has exactly one element, represented by the rank 1 free module, or R is Gorenstein and an isolated singularity (if R is complete, then it is even a simple hypersurface singularity). The crux of our proof is to...

DAVID M. MANDELBAUM, MEMBER, IEEE termc and M RlCmnd M factor the product of n + r t distinct moduli. The smallest product of Abstract-Multiple-error-correcting arithmetic codes which are min (n + r t) = 12 distinct moduli is ny=r mi = M,. Therenonlinear are constructed by residue encoding. A simple algorithm is fore, M, I M,B/C mod M, < M,. Hence M,.B/C mod M, can given for correcting multiple...