Alpha-1-antitrypsin (AAT) is the major component of the human plasma alpha-1 globulin proteins and acts as a major inhibitor of proteolytic enzymes, particularly elastase. AAT deficiency is accompanied by lung, liver and other disorders, therefore, AAT is clinically important and its precise evaluation is diagnostically critical. In present study serum AAT was evaluated by three Cellulose Acetate Electrophoresis (CAE), Trypsin Inhibitory Capacity (TIC) and Single Radial Immunodiffusion (SRID) methods and results wene compared. AAT evaluation was carried out, by CAE, SRID and TIC Methods, on 318 normal sera obtained from volunteer students of Tehran Universities. The results indicated: 34, 84 and 112 samples by TIC, SRID and CAE methods (with reference ranges of 2.1-3.5 mol/min/ml, 126- 226 mg/dl and 2-4.5% respectively) were abnormal; 201samples by CAE and TIC were normal and 29 abnomal, 83 sera were normal by TIC and abnormal by CAE; five of them were abnormal by TIC and normal by CAE; 227 of the samples were normal and 29 abnormal(TIC and SRID); 57 were normal by TIC and abnormal by SRID and seven samples were abnormal by TIC and normal by SRID. Although CAE and alpha-1 globulin band determination are routine in clinical laboratory, they are not reliable in evaluating AAT. SRID sensitivity is more Than CAE and less Than TIC; therefore, TIC is recommended as a precise and reliable method for serum AAT evaluation.

In this research synthesis and creating of Fe-TiC coating on plain carbon steel using ilmenite and laser alloying process was investigated. Two composition with the molar ratio of graphite to ilmenite 4:1 and 6:1 was investigated. The sample with molar ratio 6:1, were activated for 100h. Blended powder were mixed with amount of glue and pasted on AISI 1018 surface. Then laser surface alloying was done. The Result showed in un-milled sample ilmenite not reduction to TiC but in activated sample ilmenite reduction to Fe and TiC. The results showed that TiC were formed via in situ reaction between ilmenite and graphite in the molten pool during laser alloying process. The morphologies of TiC were of spherical shape; and the titanium carbides were distributed uniformly in the composite coating. Compared to the substrate, the hardness of the coatings reinforced by TiC particles were significantly enhanced.

In this study, surface hybrid composites reinforced with TiC and MoS2 were fabricated on heat treated aluminum 7075 substrate via friction stir processing (FSP). For this purpose, reinforcement particles were added to the aluminum 7075 matrix using groove technique, afterward friction stir process was applied using three passes. To evaluate the wear behavior of fabricated composites, reciprocating wear test was applied. Scanning electron microscopy (SEM) was utilized to study wear track and wear particles in order to determine the dominant wear mechanism. The effect of friction stir process on hardness and tribological behavior of aluminum 7075 alloy was studied. The results showed that because of the existence of MoS2 reinforcement particles as solid lubricant, wear resistance of Al7075/TiC/MoS2 surface hybrid composite was significantly improved in comparison with Al/TiC composite samples. It was concluded that abrasive wear mechanism was the dominant mechanism in Al7075/TiC surface hybrid composites. The highest hardness was observed in Al7075/TiC surface hybrid composite, which may be due to the lower hardness of MoS2 particles as solid lubricant in Al7075/TiC/MoS2 surface hybrid composites.

This study deals with the processing, microstructure, and sintering behavior of TiC-reinforced NiFe matrix composites, containing 5, 10, 20 and 30 wt.% TiC. Mechanical alloying and powder technology were used to successfully fabricate the composite. The characteristics of the milled powders and the consolidated specimens were examined using scanning electron microscopy and X-ray diffraction method. The microstructural study revealed that the TiC particles were distributed uniformly in the NiFe matrix phase. The composite hardness also increased with TiC content.

A cathodic arc ion plating system was used to produce TiC/a-C:H nano-multilayer coatings on silicon and cemented carbide substrates at cathodic arc currents in the range of 30-70 A. The microstructure, surface morphology and compositions of the TiC/a-C:H nano-multilayer coatings were analyzed by transmission electron microscopy, scanning electron microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy. The influence of the arc current on mechanical and tribological properties of the TiC/a-C:H nano-multilayer coatings was systemically investigated. The measurements show that the TiC/a-C:H multilayer coatings are composed of alternating layers of nanocrystalline TiC and amorphous hydrogenated carbon. The surface morphology of the TiC/a-C:H nano-multilayer coatings is controllable by the arc current. The ratio of Raman peak intensities ID/IG decreases and the full width at half maximum of G peaks (FWHMG) increases with the increasing of arc current. The content of hydrogen decreases from 26.5 at.% to 13.7 at.% while the content of TiC increases from 0.15at. % to 2.35 at.% as the arc current increases from 30 A to 70 A. The hardness of the TiC/a-C:H nano-multilayer coatings increases continuously up to 29.5 GPa at 70 A arc current. The average friction coefficients of the coatings keep at relatively lower values in the range of 0.1-0.2 as measured against Si3N4 balls. The results show significant influences of the cathodic arc current on the microstructure and properties of the TiC/a-C:H nano-multilayer coatings.

Tic disorders, including childhood disorders is the most important in the absence of treatment and recovery can affect the life and future of children. The goal of this study was the Effectiveness of Habit Reversal Techniques Training in Reduction Intensity and Frequency Motor tics. So, 2 boys with motor tic were selected by available sampling from bozorgmehr clinic in Tabriz city. Each of the participants received habit reversal techniques training. Present study was performed in framework of empirical plan case study using single base line plan. Yale Global Tic Severity Scale (YGTSS, 1989) was used to evaluate participants. The results of the present study showed that The Effectiveness of Habit Reversal Techniques Training reduced Intensity and Frequency Motor tics. Follow-up for one month after the end of treatment showed the persistence of these results. Accordingly, Habit Reversal techniques Training the effect of the treatment for this group of disorders.

Tic disorders are the most important disorders in childhood period. Tic is a sudden and inharmonic noise or movment which could be simple or complex. Behavaoiur therapy is one of the treatment methods for this. The present study measured the Effectiveness of Habit Reversal Techniques Training in treatment Motor tics.
the present study is an empirical plan case study using single base line. So, 2 boys with motor tic diagnosis by psychiatrist based on DSM-5 dignosis criteria, were selected by available sampling from Bozorgmehrpsychiatic Clinic in Tabriz city. Each of the participants received habit reversal techniques training for 8 sessions during one month. Present study was performed in framework of empirical plan case study using single base line plan. Patients were evaluated by Yale Global Tic Severity Scale (YGTSS, 1989) and follow up during 1 month. Data were analyzed by for trend changes, slope, reviewing of charts; also effect size and percentage of recovery were used to determine the clinical significance.
The results of the present study showed that The Effectiveness of Habit Reversal Techniques Training reduced the signs of Motor tics. This Method Reduced the Intensity, Frequency, Complexity and Interference of Motor Tics. Follow-up for one month after the end of treatment showed the persistence of these results.
Habit reversal is one the methods of behavioral therapy which is the most effectivness treatments uesd for tic disorders in children.

Recently many researches have studied technological innovation capabilities (TICs) and their impacts on firm’s competitive performance in the field of manufacturing industries. This paper pursued Yam et al. (2004) framework to study the relevance of TICs and firm's competitive performance in a mainly-service-based industry in Iran (ICT). Empirical data were collected through a questionnaire from 218 Iranian ICT firms. Structural equation modeling (SEM) was applied to examine the drivers of competitive performance in these firms. The results of this study supported the expected positive relationship between TICs and competitive performance of Iranian ICT firms. Further, the results verified that resource allocation, R&D, learning and marketing capabilities can significantly improve the innovative outcomes of Iranian ICT firms. The paper contributes to TICs literature by providing empirical evidence on how ICT firms can enhance their competitiveness by utilizing TICs.

Silicon oxycarbide (SiOC) materials derived from silicone attracted great attention for their superior high-temperature behavior. In the present study, Si(Ti)OC and Si(Ti,Al)OC nanocomposites, in which alkoxide precursors were used with the main silicone precursor, have been compared with SiOC material. Although in SiOC, C was bonded with Si in a carbon-rich SiOC phase, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) showed that TiC was the preferred state for C atoms upon adding Ti into the system. This claim was also substantiated by Raman spectroscopy, where adding Ti into the system lowered the intensity of the D band, indicating the high affinity of C to form crystalline TiC. In the Si(Ti,Al)OC nanocomposites synthesized by adding AlCl3 into the Si(Ti)OC system, mullite nanocrystals formed a superlattice structure with TiC. UV-vis spectra of the nanocomposites showed Si(Ti,Al)OC with mullite-TiC superlattice had a larger bandgap compared with Si(Ti)OC with only TiC nanocrystals.

Considering the importance of the fuel cells’ catalyst durability and the appropriate stability of metal base supports in the operating conditions of polymer electrolyte membrane fuel cells, platinum nanoparticles were synthesized on commercial supports of titanium carbide and antimony-doped tin dioxide in the present paper and the structure of the synthesized electrocatalysts was investigated by X-ray diffraction spectroscopy and scanning electron microscopy. The characterization results indicate the proper catalyst synthesis. In addition, the electrochemical evaluations show the competitive activity of Pt/TiC compared to commercial Pt/C, so that the oxygen reduction reaction onset potential for Pt/C and Pt/TiC is equal to 973 and 968 mV, respectively. Long-term investigation during 10,000 degradation cycles shows the high stability of Pt/TiC electrocatalyst. For example, the charge transfer resistance increases during 10,000 cycles for Pt/C and Pt/TiC, which equals 50 and 7%, respectively. The obtained results indicate the high activity and stability of the Pt/TiC as the cathode catalyst of polymer electrolyte membrane fuel cell.