In this study, we investigated the flow of blood plasma in which white blood cell, erythrocyte and platelet nanoparticles were suspended with a percentage of actual concentrations inside a three-dimensional rectangular MICRO channel. The chamber rotates around the vertical axis at constant angular velocity and is affected by electrical double layer. The numerical results on white blood cell, erythrocyte and platelet nanoparticles were extracted in plasma at different angular velocities and the movement of suspended particles in the blood was studied that was observed that in the angular velocity increases, the pressure decreases along the channel and along the axis of ROTATION of course the velocity has the maximum amount in the center of channel. Numerical studies of the velocity and distribution of particles also show that the velocity variations are the same in all particles and the velocities of white blood cells, erythrocytes and platelets at the end of the channel are more than another place and the streamlines more compact.

Introduction: Post-traumatic stress disorder (PTSD) is a form of anxiety disorders. PTSD typically follows an exposure to severe stress. It is characterized by a particular clinical syndrome, including re-experiencing symptoms and alterations in arousal, avoidance, cognition, and mood conditions. Recent evidences propose that MICRO-RNAs are crucial epigenetic players in mental disorders. It has been demonstrated that MICRO-RNAs are promising non-invasive biomarkers for different mental health disorders. It has been reported that the levels of MICRO-RNAs have been changed in psychotic diseases, including Alzheimer’s disease and PTSD.Conclusion: MICRO-RNAs seem to play a role in pathophysiology of psychological diseases. In this article, we discussed the new findings suggesting a relationship between MICRO-RNAs and PTSD as well as the possible roles of MICRO-RNAs in diagnosis and treatment of this mental disorder.

Introduction: Intentional and non-intentional changes achieved in rhinoplasty, especially in two important nasal indices (nasal tip ROTATION and nasal tip projection) are not constant and tip ROTATION and tip projection loss will gradually occur in these patients. In this study we aimed to quantify and compare the rate of these losses in two common rhinoplasty techniques -open versus closed rhinoplasty.Methods: This clinical trial was performed on 68 patients in two groups - namely open (O) and closed (C) rhinoplasty groups. Nasal tip ROTATION (NTR) and projection (NTP) 4 weeks and 1 year after surgery were measured using standard photographs taken from the patients. The rate of alteration in these measurements within the said period was analyzed and compared in the two groups. Results: NTR loss in groups (O) and (C) measured 7.4 and 2.64, respectively (P<0.001). NTP loss in groups (O) and (C) was 2.44% and 2.26%, respectively (P=0.78).Discussion: The consistency of surgical results and structural properties of nasal skeleton (tip ROTATION and tip projection) are higher in closed rhinoplasty technique compared with the open approach.  

Background & Aim: The purpose of this study was to evaluate the MICRO-shear bond strength of two kinds of resin-based cements with fluoride release with the usage of five adhesive systems to enamel and dentin. Materials & methods: Bovine flat enamel or dentin surfaces were used in this study. MICRO cylinders of resin cement with Xeno Cem Plus (XCP) or Panavia Fluoro Cement (PFC) were bonded to enamel or dentin as followed: XCP or PFC as instructions prior to the usage of their own adhesive systems, Xeno CF II+XCP, SE Bond+PFC, or Clearfil Liner Bond II (CLB) + PFC. After the storage in 37°c water for 24 hrs, MICRO-shear bond test was applied for all the test groups. The data were statistically analyzed using two-way analysis of variance (ANOVA). After two-way ANOVA, one-way ANOVA and multiple comparisons with Fishers PLSD test were made.Results: Are given as follow (enamel and dentin, mean±SD in MPa); XCP, 13.7±4.0 and 15.5±9.2; PFC, 23.7±10.6 and 15.0±7.3; XCP+XCF II, 35.4±11.5 and 17.1±4.0; PFC+SE, 54.2±9.8 and 41.7±12.0; PFCCLB, 31.39±3.09 and 15.09±4.35. ANOVA (α=0.05) analyze revealed the usage of SE Bond under PFC significantly increased the bond strength to both enamel and dentin. Bonding of Xeno CFII was only improved the bonding to enamel with the application of XCP.Conclusion: Light-cure adhesive systems significantly improve the bonding of current resin cements.

The growing worldwide demand for less polluting forms of energy has led to a renewed interest in the use of MICRO combined heat and power (CHP) technologies in the residential sector. The operation of MICRO CHP system results in simultaneous production of heat and power in a single household based on small energy conversion units. The heat produced may be used for space and water heating and possibly for cooling load if combined with an absorption chiller, the electricity is used within the house. In this paper, two typical MICRO CHP alternatives, namely, gas engine and fuel cell for residential buildings, are analyzed. For each facility, two different operating modes including minimum-cost operation and minimum-emission operation are taken into consideration by employing a plan and evaluation model for residential MICRO CHP systems. The analyses of results show that the fuel cell system is recognized as a better option for the examined residential building from both economic and environmental points of view. With the operation considering optimal economic benefits, annual energy cost is reduced by about 26%. On the other hand, annual CO2 emissions are reduced by about 9%.

Background and Aim: Quaternary Ammonium (QAD) forms a group of chemical disinfectants. These compounds were deleted from the list of disinfectants in 1978, but a new generation of them have been produced and presented since 1990. MICRO 10+ and Deconex 53 plus are two current samples of this generation. The aim of this study was to investigate the disinfecting effects of MICRO 10+ and Deconex 53 plus.Materials and Methods: This descriptive study was performed on 30 subjects referred to Shaheed Beheshti Dental Faculty. A total number of 90 sterilized RCT files were used, 3 for each patient. After oral flora sampling, all samples were transferred to the MICRObiology laboratory. Lab Bacillus subtilis spore was used as the witness of the study. The contaminated files were cultivated and the existing MICROorganisms were cleared by coloring technique. The contaminated files were contacted for one hour with MICRO 10+ (2%) and Deconex 53 plus (1%) based one the manufacture's instructions. After this duration, the cultivation was prepared again. And the result was analyzed.Results: The observed MICROorganisms were as follows: Staphylococcus aureous, Neisseriae suprophyticous, Pneumococcis, Streptococci viridans, Nonpathogenic staphylococcus, Bacillus subti1is, Candida albikans and no colony growth was observed following the cultivations contact with the mentioned solutions.Conclusion: MICRO10+ (2%) and Deconex 53 plus (1%) exert acceptable disinfecting effects on dental instruments followingone- hourapplication.