Literature as a cultural mirror of every nation is the most reliable source that reflects customs, rituals, and beliefs of people intentionally. Undoubtedly, literature of our nation is among richest and brightest literatures as the human precious wealth. In addition of its unique historic features, Bihaghi History Book is one of the most precious literature sources. The source that as more we contemplate we do fascinate more and also we discovered its historical, cultural and…values. One of the cases that take attention of this pernicious heritage reader is precise mentioning and delicate attention of events, incidents and rituals and… of Masoud Ghaznavi government because of sharp attendance of Abolfazl Beihaghi at the central affairs of Masoud Court. Description of Mahmood Ghaznavi death and empowerment of Masoud is one of the main parts of this book. It is in this part that Beihaghi in describing Mahmood mourning rituals, despite that period costumes and rituals and even previous eras(according to its contemporary literature) by explaining white WEARING of Masoud and his followers in Mahmood and Khalifa empowered by god mourning rituals. The costume that was completely oppose of other mourning descriptions in various Persian literatures up to writer s period. As if mourning and its specific features are one of the most significant characteristic of every nation customs and rituals, studying its causes and finding roots and origins of these differences is one of the main purposes of this research.

The most important application of polytetrafluoroethylene (PTFE) polymer in industry is its use as a solid lubricant, due to its lack of reactivity with most industrial materials. However, the PTFE polymer has low abrasive resistance that limited its usage. In this research, 0, 2, and 5% of nanoclay were added to PTFE polymer as filler, and properties of the resultant nanocomposites were investigated. For this purpose, the nanoclay was first dissolved in a solution of water and surfactant, and then added into the PTFE. After thoroughly mixing, the cylindrical specimens were produced by cold pressing and heated to 340 °, C for 2 h in an atmosphere-protected furnace. EDS analysis, electron scanning microscopy and pin-on-disk wear test were done on nanocomposites. The results of the EDS proved the uniform distribution of nanoclay in the matrix of PTFE. The abrasion test showed that the wear resistance was more than 100 times in the nanocomposite containing 5% nanoclay than PTFE. The investigation of the abrasive particles showed that the particles separated from polymer are longer and thicker than those separated from nanocomposite. By observing the surface of the abrasive pin after the wear test, it became clear that the transfer film from the PTFE polymer was formed on the surface of the abrasive pin and prevented the nanocomposite from the abrasion directly. Therefore, the abrasion mechanism in nanocomposites is “, abrasive”,due to the surface adhesion.

Perception of body is different in various cultures and it is one of the prominent concerns of sociologists of sociologists of the world today. In this field different insights to the body of men and women is well-known. In some societies body is considered as a private object and will prevented to be shown in public. In some others it is cherish and the owner can use it in any way. In Iranian long history the body considers as a private object and avoids to be publicized. This rule is restrictors for women. In this article a short history of women's WEARING is presented and women students' tendency to different WEARING is analyzed. Women students' WEARING in different social occasions is reported and social condition's affect on their clothing is examined. The article will deal with social changes in a period of ten years and its effect on women students' tendency to different types of costume.

This study aims to examine the functions of hijab fashion among hijab-WEARING women and explore the role of social media and influencers in hijab fashion. Findings show that hijab fashion functions as encouragement, attraction, modesty and social image among Turkish Muslim women. The concepts of makeup, fashion and outward beauty has, for generations, been linked to femininity, with an implication of vanity persons. However, since these concepts (of makeup and fashion) were restrictively associated with women, men and those belonging to other genders were prejudiced against for their involvement in the ideals of makeup and fashion.

Due to COVID-19 disease, children of all ages seem susceptible to COVID-19,thus, preventing children from COVID-19 disease is a serious duty. One of the preventive strategies in children is the behavior of mask-WEARING. Recently, many parents have stated concerns to doctors and social media about whether masks may be harmful for their children. Incorrect news about the negative effects of face masks has also been increasing. Therefore, this letter aims at answering the most common and most important parents' worries about children’, s WEARING face masks.

AIMS: The degree of seriousness of the control areas is low in dealing with those who do not follow WEARING helmet legislation. The purpose of this study was to explain the proposed solutions to solve the problem of implementing the WEARING helmet legislation from the perspective of control areas and motorcyclists. MATERIALS AND METHODS: This is a retrospective study on the pediatric patients whose ages were between one month to 18 years old,and who were admitted to the medical pediatric intensive care unit (PICU) of Namazi Hospital in Shiraz, Iran, from 2019 to 2020 (20 months) for whom a central venous catheter was placed in the subclavian vein through a supraclavicular approach. Then complications such as hemorrhage, arterial perforation, pneumothorax, and failure of this method were recorded and examined by reviewing special forms in the medical record. FINDINGS: The experiences of 20 male participants,9 people from the control areas, 4 university faculty members, 3 traffic police, and 4 motorcyclists were registered. The results showed that the solutions for implementing the WEARING helmet legislation with four categories names: Hard, correction, support, and soft solutions and14 subclasses and 54 codes were formed. CONCLUSION: The use of hard solutions such as the diligence and seriousness of the control areas in implementing the WEARING helmet legislation and corrective solutions such as drafting new laws and amending existing laws, supporting solutions such as supporting the police and motorcyclists, and finally soft solutions such as education and cultural creation and the use of mass media are effective in implementing these laws.

Laboratory instrumentation of orthoses and prostheses can be used to objectively gain accurate information. In this study the measurement of orthosis WEARING time during laboratory climate tests with normal volunteers were accomplished to determine the validity and reliability of the device for registering orthotic WEARING time that was designed and fabricated in Iran. Orthosis WEARING time is an important factor in orthotic treatment for spine disorders. A reliable and objective System for measuring orthosis WEARING time currently is still lacking in Iran. After Developing such a device, our objective was to test the accuracy and validity of the device, Made in Iran which was designed to register spinal orthosis WEARING time. The device had a force sensor mounted on a thoracolumbosacral orthosis pad to recorded orthosis WEARING time. In an interval of 1 hour 5 Normal volunteers tested the device using a CASH orthosis. They donned the orthosis for a few minutes and doffed it; meanwhile they recorded the time using a standard chronometer into the "Orthotic WEARING" form. After gaining the data one sample t-test was performed on all orthosis WEARING-time intervals as recorded by the system and by the time tables filled by each of the 5 testers using a chronometer. The tests yielded 100 sensor trigger-events that is 50 times of orthotic wear (t=2.21, P=0.032). As indicated by the t-test analysis, the device for registering orthotic WEARING time had accurately quantified the orthosis WEARING-time intervals during the laboratory climate tests with normal volunteers.