The main goal of this paper is to investigate the periodic character, invariant intervals, oscillation and global stability and other new results of all positive solutions of the equation$$x_{n+1}=frac{alpha+beta x_{n}}{A + Bx_{n}+ Cx_{n-k}},~~ n=0,1,2,ldots,$$where the parameters $alpha$, $beta$, $A$, $B$ and $C$ are positive, and the initial conditions $x_{-k},x_{-k+1},ldots,x_{-1},x_{0}$ are...

Background Kawasaki disease (KD) is the second most common childhood vasculitis and one of the main causes of acquired heart disease in children. Recent work focuses on the early diagnostic importance of those risk factors that indicate resistance to intravenous immunoglobulin (IVIG) treatment. The objectives of this study were to identify clinical, laboratory and/or instrumental factors that c...

cellular and tissue activities highly depend on environmental ph. murine lung tissue, when cultured properly in-vitro, is a potent producer of hematopoietic growth factors. we have studied the effect of ph on the production of hematopoietic growth factors and protein synthesis by the murine lung in-vitro. various concentrations of nahc03 were used to adjust the ph of the culture medium under co...

the purpose of this descriptive-correlation study was to investigate effective factors on rural people’s non-participation of mahabad’s dam catchment in watershed management projects. the research instrument was structural questionnaire with close-ended questions, which its validity confirmed by panel of academic staff and reliability of questionnaire was confirmed. the target population of thi...

the purpose of this research was identifying factors affecting the development of processing and complementary industries of date palm in khouzestan province. the method of research was causal comparative. the population of this research was managers in processing and complementary industries of date palm products of khouzestan province (n=100). the return rate was 94% (n=94). by census method...

The common nodulation genes nodABC are conserved in all rhizobia and are involved in synthesis of a lipooligosaccharide signal molecule. This bacterial signal consists of a chitooligosaccharide backbone, which carries at the nonreducing end a fatty acyl chain. The modified chitooligosaccharide molecule triggers development of nodules on the roots of the leguminous host plant. To elucidate the s...

Metarhodopsin-II is the light-excited form of rhodopsin that triggers G protein function. Metarhodopsin-II is stabilized when the N-terminus of the carboxyl (340-350) tail peptide of the alpha-subunit of transducin (Gtalpha) is crosslinked to rhodopsin cysteine 140 or the 340-350 peptide C-terminus of Gtalpha is crosslinked to rhodopsin cysteine 316. When the N-terminus of the peptide is couple...