Abstract Background Biological nitrogen fixation is catalyzed by Mo-, V- and Fe-nitrogenases that are encoded nif , vnf anf genes, respectively. NifB the key protein in synthesis of cofactors all nitrogenases. Most diazotrophic Paenibacillus strains have only one nifB gene located a compact cluster ( nifBHDKENX orf1 ) hesAnifV ). But some multiple genes their functions not known. Results A tota...

Sixty male distance athletes were divided into three equal groups according to their personal best time for the 10km run. The runners were measured anthropometrically and each runner completed a detailed questionnaire on his athletic status, training programme and performance. The runners in this study had similar anthropometric and training profiles to other distance runners of a similar stand...

A tuple (or subgroup) in a group is said to degenerate to another if the latter is an endomorphic image of the former. In a countable reduced abelian group, it is shown that if tuples (or finite subgroups) degenerate to each other, then they lie in the same automorphism orbit. The proof is based on techniques that were developed by Kaplansky and Mackey in order to give an elegant proof of Ulm’s...

Background: In the current study, we investigated that how sagittal femoral bowing can affect the sagittal alignment ofthe femoral component in total knee arthroplasty (TKA).Methods: There were 25 patients underwent TKA. Long leg radiography in lateral view was performed. The sagittalfemoral bowing (SFB) and component alignment in relation to the sagittal mechanical axis and distal anterior cor...

BACKGROUND & OBJECTIVES We have earlier proposed that group A streptococcal (GAS) immunoglobulin binding surface proteins (IgGBPs) might trigger anti-IgG production and immune complex formation leading to glomerulonephritis. In the present study, cardiac tissue material from rabbits injected with heat-killed GAS was investigated. METHODS Rabbits were injected intravenously with 10(9) colony f...

assessment of different plant genetic resources clarifies genetic variation and makes it possible to apply them in plant breeding programs. in this experiment, 27 selected lines of common bean (phaseolus vulgaris l.), one local landrace and two conventional bean cultivars (talash and cos-16 as controls), sown using randomized complete block design with three replications in the research farm of...

background according to statistics of american society of plastic surgeons, cosmetic rhinoplasty was the second most frequently performed cosmetic surgery. this study shares the experiences with component rhinoplasty. methods from 2004 to 2010, all patients underwent aesthetic nasal surgery were enrolled. the patients requiring only correction of septal deviation and those presenting with cleft...

BACKGROUND Mitral valve prolapse (MVP) is common in women. Other clinical features such as flexibility and hyperlaxity are often associated with MVP, as there is a common biochemical and histological basis for collagen tissue characteristics, range of joint motion, and mitral leaflet excursion. OBJECTIVE To confirm whether adult women with MVP are more flexible and hypermobile than those with...

The objective of this work is to develop a dynamic geographical information system (DGIS) applicable for the simulation of spatio-temporal phenomena. DGIS is designed and implemented as a dynamic raster GIS in a fully integrated systems strategy using theory of modelling and simulation, discrete event systems speciŽ cations, and knowledge-based simulation methodologies. The approach accommodate...