نتایج جستجو برای: r s t coloring
تعداد نتایج: 1615797 فیلتر نتایج به سال:
the behavior of suspended sediment during flood events is not only a function of energy conditions, i.e. sediment is stored at low flow and transported under high flow conditions, but also is related to the variations in sediment supply and sediment depletion. these changes in sediment availability result in so-called hysteresis effects. therefore, hysteresis pattern analysis is of great import...
materials and methods: 32 new zealand rabbits were randomly divided into three groups: control group, high-cholesterol group and losartan group. the level of weights, serum lipid levels and inflammatory factors, such as il-6 and hs c-reactive protein were detected before the losartan intervention and two months after the losartan intervention respectively. the content of angii was detected on l...
introduction precipitation is one of the most important meteorological variables in comparison with other climatic parameters. it varies extremely over time and space. the occurrence of this climate phenomenon requires specific circumstances in environment. its accurate measurement is important to a wide range of decision makers including hydrologists, agriculturalists, industrialists and etc. ...
splash erosion recognized as first stage of erosion process that results of bombing soil surface with rain drop. falling rain drops to soil surface resulted moving soil particles and destructing soil structure. at this research effects of various pam rate (0, 2, 4 and 6 kg.ha) on splash erosion on three soil textuere clay, silty clay and sandy clay loam was tested. simulations were done with ra...
nitrogen forms exert significant effects on physiological and morphological characteristics of plant. in this study, the effects of ammonium, nitrate, and ammonium-nitrate on pepper plants were investigated in soil culture, as well as in solution culture. in the soil culture, 3, 4-dimethylpyrazole phosphate (dmpp) was used as a standard nitrification inhibitor to guarantee the presence of ammon...
The typical problem in (generalized) Ramsey theory is to find the order of the largest monochromatic member of a family F (for example matchings, paths, cycles, connected subgraphs) that must be present in any edge coloring of a complete graph Kn with t colors. Another area is to find the minimum number of monochromatic members of F that partition or cover the vertex set of every edge colored c...
This article shows how the Abridged Big Five Dimensional Circumplex (ABSC; W K. Hofstee, B. de Raad, & L. R. Goldberg, 1992) clarifies disputes about the Big Five or five-factor model. Trait ratings from instruments representing 4 versions of the Big Five (L. R. Goldberg, 1992: R. Hogan & J. A. Johnson, 198 I; R. R. ~McCrae & P. T. Costa. 1985b. 1957; W T. Norman. 1963) were subjectedto separat...
objective(s): neuroinflammation in parkinson disease (pd) is associated with glial cells activation and production of different inflammatory cytokines. in this study, we investigated the effect of chronic administration of 8-oh-dpat on 6-ohda-induced catalepsy and levels of inflammatory cytokines in cerebrospinal fluid (csf). materials and methods: catalepsy was induced by unilateral infusion...
introduction atmospheric circulation patterns leads to different weather conditions and rainfall regime change is controlled by seasonal and irregular variations of atmospheric circulation pattern. variety and climate change, such as drought and flood result in changes in the spatio-temporal of precipitation, one of the important parameters conditions mentioned, heterogeneity in moisture transm...
Let r,k≥1 be two integers. An r-hued k-coloring of the vertices a graph G=(V,E) is proper vertices, such that, for every vertex v∈V, number colors in its neighborhood at least min{dG(v),r}, where dG(v) degree v. We prove existence an (r+1)-coloring planar graphs with girth 8 r≥9. As corollary, maximum Δ≥9 and admits 2-distance (Δ+1)-coloring.
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