Aim: The aim of this study was to compare the effects of Ethylen glycol tetra acetic acid (EGTA) and EDTA for their smear layer removal capability using scanning electron microscopy technique.Material and Methods: A group of 28 single rooted teeth were instrumented to size 60 master file. Four teeth were also kept as control while the remaining teeth were divided into two groups. Group A: in which 12teeth were irrigated with 10 ml of 17% EGTA for 2 minutes? Group B: consisted of 12teeth irrigated with 10 ml of 17% EDTA for 2 minutes. Both groups were then irrigated with 10 ml of 5% Naocl. the control group were just irrigated with 10 ml of 5 % Naocl. All teeth in then the control group were only irrigated with 10 ml of 5% Nacl. Specimeus were then sectioned longitudinally. A scanning electrone microscope was wsed to in vetig ate the intenal surfaces of the canal.Results: EGTA chelated dentin surface more conservatively than EDTA without causing erosion.Conclusion: It seems that EGTA can be used safely to remove smear layer from the canal surfaces.

In this work, a robust rain removal algorithm is proposed for removing rain from still images. The algorithm uses a deep network architecture called DerainNet for effective rain removal. The proposed network directly learns the mapping relationship between rainy and clean image detail layers from the given set of data. In order to modify the objective function and also to improve the deraining process, other Deep CNN based architecture increases the width or depth of the neurons, which in turn increases the complexity of the network. But this work makes use of the Image Processing domain knowledge which reduces the complexity of the network. Instead of training the entire image, only the detail layer of the image is trained. The detailed layer of the image is obtained using two low-pass filters one after the other. They are guided filter and L0-Smoothing filter. The results obtained prove that the proposed network performs better deraining on images in comparison to paper [2] with light rain streaks. Python version 3.8 is used for this work.

The rate of applying cruciform columns with bolted connection in double directed moment resisting frames and tubular systems has positive trend because of their architectural advantages. Construction of double plate for shear strengthening panel zone and continuity plate, with regard to special moment resisting frame requirement, needs convenient detail which is presented in this research. There was no applicable information in this research field, so new constructional details involving inclined plates and vertical angles were presented in order to strengthen the panel zone. Furthermore, the different welding configurations were studied. For this reason, 16 nonlinear numerical models were simulated to study different constructional detail of panel zone. In present research, steel material and weld behavior were evaluated by fracture indexes of material. Results show the performance of panel zone will be improved by using proposed constructional details.

Introduction: With due attention to great application of irreversible hydrocolloid impression material in treatment dentistry and importance accuracy of impression in final result of treatment was necessary to study the all of effect factors on the accuracy impression. So this study was done for comparison of surface detail reproduction some of the kinds of irreversible hydrocolloid.Materials and Methods: In this laboratorial experimental study, was used the recommended laboratoril model of the standard (Iran) and research organization, with the registration number 2787. The form of this model was a stainless steel slotted block in 20, 50 and 75 sizes. The impression materials that used were Super Iralgin, Iralgin and Bayer irreversible hydrocolloid. For each materials was take 20 impression in the same conditions and was poured with type III gypsum and totally 60 cast models was earned. These models were observed with steriomicroscope randomly and each of the identical lines 20, 50 and 75 were allowed with a specific score. For evaluation of the results was used statistic analysis of Mann-Whitney Test and Kruskal Walli's (a = 0.05).Results: In registration of 20-line, 20 samples of Super Iralgin had sore 3, 19 samples of Regular Iralgin and Alginoplast had score3 and 1 sample score 4. The difference among these 3 groups was not significant (p value = 0.601). In registration of 50-line, 15 samples of Super Iralgin had score 2 and 5 samples had score 3, 7 samples of Alginoplast, had score 2, 13 samples had score 3, 6 samples of in Regular Iralgin had score 2 and 14 samples had score 3.The difference among these 3 groups was significant (p value = 0.008). In registration of 75-line, 15 samples of Super Iralgin had score 1 and 5 samples had score 2, 7 samples of Aliginoplast score 1 and 13 samples had score 2, 6 samples of Regular Iralgin had score 1 and 14 samples had score 2. The difference among these 3 groups was significant (p value = 0.008).Conclusion: In registration each three lines, the super Iralgin was more precises than the other types and was an ideal impression material. In registration of 20-line, Regular Iralgin and Alginoplast were in the same level, but in registration two others lines, Alginoplast was more precise. It is better to advise to the factory necessary recommendations to improve the quality of the Regular Iralgin material.

Environment and its conservation is one of the present issues in risky modern life. Although, the present world has been improving during last years, it hasn’t been able to solve environmental problems and it has caused its deterioration. Littering in jungle, seashore, public places and passages is one of the significant environmental issues in society of Iran. The Purpose of the present study is investigation of the reasons of littering formation by the approach of Causal Layered Analyses (CLA) and planning scenario. The present study analyzed the layers forming the present social issue and searched the origin of it. In order to accomplish this study, 15 experts in environment and society were interviewed by Qualitative and exploring method and applying deep interview technique. Then, after exploiting the contents and content analysis of interviews, their opinions presented in 4 forms as litany, systematic, discourse analysis and metaphor. By applying the present discourses, the gap between state-people and people-people were recognized as important variables and were applied in presenting scenario. Finally 4 scenarios presented in a diagram which can help strategists and officials of the society.

Today, politeness is mostly manifested in the use of its ostensible words, and traces of deep manners that indicate true education and creation of inner manners can rarely be found. In addition to mentioning external etiquette, the Holy Quran also mentions innate and deep manners to serve as a comprehensive plan to build human beings born with manners and a human society committed to manners. It is worth mentioning that in addition to the physical health of its members, a sound society needs their mental health depending in its turn on the manners and etiquette of its people in interacting with each other.The type of research is fundamental and descriptive-analytical method has been used. The method of collecting information is documentary. The documents used are the verses of the Holy Quran.Since the rules of manners mentioned in the Holy Quran have been required by the creator of human, the most comprehensive and necessary points related to etiquette have been mentioned. These points define the duties and rights of human beings in their interaction with each other and it can be claimed that if they are observed, human relations with God and other human beings related to them will be improved and many family, kinship and social disputes and dissensions will be resolved. The explanation factor researches the set of verses raised around a specific topic with the aim of measuring the amount of emphasis of the Holy Quran on that topic.The many emphasized topics that we have found in this research bring the emphasis on the topics raised in the Holy Qur'an.

Background and Aims: Gypsum products are used for several different purposes. Adaptation and success of casting restorations are dependent on dimensional accuracy, strength, and reproduction of details of dental gypsums. This study was designed to evaluate the dimensional changes and accurate details reproduction of three type IV dental gypsums. Materials and Methods: 60 samples in 3 groups of dental gypsums of G30, Yeti Rock and FujirockEP were evaluated. The detail reproduction of 50 micron scratched line was analyzed by a microscope at 12× magnification. The samples were assayed for dimensional changes at 2 and 24 hours and 1 week after pouring. Photograph images were taken from samples in fixed distance by a camera (Canon D600) and analyzed in corel draw software. Data were analyzed using ANOVA and chi-square (P<0. 05). Results: There were significant differences in the details reproduction between three gypsums (P≤ 0. 05) and the highest values was for Fujirock EP, Yeti Rock. The G30 did not reconstruct the details. There was no significant difference in the dimensional changes of the evaluated gypsums based on time (P≥ 0. 05). Conclusion: All three different gypsums evaluated in this study showed the dimensional stability during one week. Fujirock EP and Yeti Rock could reconstruct the details and G30 gypsum could not.

The Barite mine of Komshecheh is located in north eastern of Isfahan province and south western of Ardestan County at 30o12' N, 52o02' E coordinates.The ore reserves are formed among anticlines which their main axle public orientation are north eastern-south western. Barite occurs above crest lines and toward down and beside anticlines. Barite reserves are located beneath a conical hill that their stones are Triassic Dolomite.Based on the exploration operation, Barite is located among Triassic Dolomite as three main veins and some layer like forms; these layers are accordance with sedimentary layers.Komshecheh barite generally considered as worthy mine, containing 20 percent of Fluorine and lower percentage of Calcite and Quartz inside veins. Veins’ protractions are north-south and their slopes are almost vertical and somewhere are 80 degree to east. Totally, the amounts of Fluorine among veins are layer concentration form and Barite concentration looking like lenses inside a layer form.

Medicinal plants contain active ingredients in one or some of their organs. Squalene is one of the active ingredients that prevent heart attacks and cardiovascular diseases and protect the body from some cancers. The aim of the present study was to investigate the presence of squalene in a number of medicinal plants. In this experiment, the plant oils were extracted and measured using Bligh & Dyer with minor changes. TLC (thin layer chromatography) was used to identify squalene. Comparison of TLC of standard squalene with TLC of the investigated medicinal plant samples showed that Caryophillium aromaticus, Descurainia sophia, Portulaca Oleracea, Papaver somniferum and Nigella Sativa contained squalene. Although the percentage of Papaver somniferum and Nigella Sativa seed oil was higher than other medicinal plants, the squalane spot of clove plant had a higher intensity of color and this indicates a higher concentration of squalene in this plant.