marjan abbasi

The main purpose of this design research was to evaluate the factors affecting the related sales behavior and the resulting results. The present research is fundamental-applied in terms of its purpose, and in terms of its nature, it belongs to the category of qualitative and quantitative research. The statistical community in the qualitative sector is marketing experts. The experts were identified by purposeful sampling and snowball method, and according to the sufficiency of the data, a total of 20 experts were interviewed. The method of analysis was database theory. In the quantitative part, the researcher used 384 internal customers of the Maxim brand (branch sellers) who were selected using two cluster and available approaches. Also, the data collection tool in the quantitative part of the questionnaire was 43 items. Smart PLS software was used to analyze the qualitative data from the foundation data approach and also to analyze the quantitative part. The obtained results have confirmed that the causal conditions of relational sales behavior included a complex competitive environment. The main phenomenon of the seller's specialized ability is the background of the company's situational factors, the interfering factors of the sellers' personality characteristics, as well as social and cultural factors. Relational sales behavior strategy and the result of sales performance, sales behavior performance were also identified. The results obtained from the quantitative part confirmed the approval of the designed model.

In the present work, recycled polyethylene terephthalate (R-PET), virgin fiber grade PET (FG-PET) and bottle grade PET (BG-PET) chips were spun on a high spinning speed machine into filament yarns and the influence of high-speed spinning process at the speeds of 3000 and 3500 m/min and the spinning temperatures of 280, 285 and 290 °C on the fiber properties was studied. The increase in the take-up speed increased the density, optical birefringence, crystal size, amorphous and crystal orientation, tenacity and initial modulus of recycled-PET and bottle grade filament. The study on the intrinsic viscosity (IV) showed that the recycling process resulted in decreasing the molecular weight of polymers and narrowing the molecular weight distributions. At higher spinning temperatures, the crystallinity, crystal size, tensile and intrinsic viscosity values decreased but the shrinkage increased. In this part of the study, it was found that the R-PET can be a good candidate for using in high-speed melt spinning processes, and the filaments with proper confidants were received from the recycled-PET.

According to some reports, 25-hydroxy vitamin D (25 (OH) D) deficiency leads to respiratory diseases. Given the high prevalence of acute bronchiolitis in young infants, the assessment of 25 (OH) D status is very important for this disease.
This study was conducted to determine the relationship between the serum levels of 25 (OH) D and acute bronchiolitis in young infants.
In the present study, 57 patients with acute bronchiolitis (case control) were compared with 57 healthy children (control group) in terms of 25 (OH) D serum levels. The serum levels of 25 (OH) D were measured using the ELISA method. The results were analyzed and compared between the two groups.
The mean and standard deviation of 25 (OH) D serum levels were 26 ± 9.5 and 23.3 ± 8.3 ng/mL in the case and control groups, respectively. No significant difference was observed between the two groups in terms of 25 (OH) D serum levels (P = 0.11).
This study showed that there is no significant difference between children with acute bronchiolitis and normal children in terms of serum 25 (OH) D levels. It therefore seems that 25 (OH) D does not play any role in the pathogenesis of acute bronchiolitis. Further studies in this area are recommended.

Pure polyacrylonitrile (PAN) nanofibers and functionalized-single walled carbon nanotube (FSWNT)، reinforced by PAN nanofibers with variable FSWNT content (up to 1 wt%)، were fabricated by electrospinning process. The chemical structure، morphology and microstructure of the electrospun nanofibers have been characterized using Fourier transform infrared (FTIR)، scanning electron microscopy (SEM) and X-ray diffraction (XRD). SEM analysis of the nanofibers revealed that the deformation of the nanofibers increased with increasing FSWNT concentration. Very smooth surfaces of the composite electrospun nanofibers even for nanofibers with concentration of 1 wt% FSWNT have been successfully prepared because of the high stability dispersion of FSWNTs. Moreover، with increasing the concentration of FSWNT in the PAN solution from 0 to 1 wt%، the average nanofibers diameter increased from 405 ± 54 nm to 488 ± 50 nm. The recorded spectra from FTIR were close to PAN nanofibers with peaks at 2243 cm-1 (CN stretch)، 2932 cm-1 (CH2 stretch)، 1450 cm-1 (CH bend) and 1730 cm-1 (C=O stretch) wavenumbers. FTIR Spectroscopy and XRD studies showed that PAN/FSWNT nanofibers exhibited higher crystallinity compared to PAN nanofibers without FSWNT. The analysis of the microstructural properties of the composite nanofibers with 1wt% FSWNT revealed that they exhibit an enhanced crystallinity from 44% to 48%، and the crystallite size was decreased from 25. 0 nm to 19. 9 nm، as compared to pure PAN nanofibers. The results indicated that the embedded FSWNTs in the PAN nanofibers nucleated the growth of crystals.

In lb is research, adsorption of some amino acids and their complenation with manganese (II) ion on carbonnanotube (MWCNT) by using of four relations Langmuir, Freundlich. Temkin and Harkins -Jura imitherms wasinvestigated. From this relations. Freudlich and Temkin relations predict good equilibrium diagram in, isothermcondition. we could compute the theoretical constants by excel software. Hy considering these constants, it isclear that among amino acids used and also amino acids %yam formed complex. L-phenylalanme and LusaWinein comparison with other showed the most adsorption on carbon nanotube.