Objective: People who have higher social health can more successfully deal with the challenges and ups and downs of playing key social roles and participate more in collective activities and prevent social deviations and anomalies. In this regard, foresight and the development of a forward-looking strategy model by the MEDIA can play an important role in promoting the social health of their audience (individuals).Method: This research has been done qualitatively and quantitatively. In the qualitative phase, content analysis and Q methods were used, and in the quantitative phase, factor analysis was used to analyze the Q method data.Results: The content analysis of the MEDIA in this study showed that the most MEDIA production in the field of social deviations with 576 cases and the lowest MEDIA production in the field of violence with 237 cases. The field of social quality with 485 and the field of social issues with 312 cases are in the second and third ranks. A small questionnaire was made and based on it, the desired model was designed using PLS software. Conclusion: This model showed that the function of MEDIA is effective in promoting social health of society and can have the greatest impact on improving quality of life, reducing violence, reducing social deviations and social issues.

Habitat suitability prediction for the animals is one of the ways to achieve the conservation goals for biodiversity. In the present study, habitat suitability of Lacerta MEDIA has been evaluated. Based on the maximum entropy result, northwest and western Iran has been predicted as the most suitable for the species presence. Also there are several records of the species presence in Alborz, Markazi, East Azarbaijan and Esfahan provinces that currently situated outside of the suitable predicted region. Precipitation of the coldest quarter with contribution more than 40% was distinguished as the most contributed environmental variable for species presence. Unsuitability prediction of the species presence in central plateau and East Azarbaijan province directly has been influenced by the recent decreasing of winter precipitation. Also, disturbance the habitats of the species along valleys and rivers is the main factors to the decreasing population size of the species. Finally, evaluation the effective factors for species distribution and finding new suitable areas for species presence can help to prevent the species extinction risk in the wild.

Sound is one of the forms of mechanical energy and the two main characteristics of sound are intensity or power and frequency or wavelength of sound.their performance against the incoming sound wave, industrial silencers can be divided into two general groups of resonating and absorption silencers, the main difference between these silencers is the release of sound energy from the channeling system, which is one of the common examples of the use of resonating type silencers, their use in It is the internal combustion engines that distinguish absorption silencers from the resonator type based on the fact that the main and visible part of the act of muting the sound is achieved by changing sound energy to heat energy.The goal of this article is to design a muffler based on the breaking of sound frequencies resulting from the movement of fluid in the exhaust output of vehicles, which leads to a reduction of at least 50 db of sound and gives the operator enough peace and concentration. In this article, after examining three types of mufflers, absorbent mufflers that use the properties of porous absorbent material to absorb passing sound and are the simplest form of mufflers, have been selected, analyzed and reviewed and are suitable for the OM457 engine of Idem Industrial Company. It designed for maximum inlet exhaust temperature is 520 and for the maximum kW power is 315 with the maximum discharge relative pressure of 185 mbar for homogenization with the standard atmosphere.

The present paper briefly describes HEAVY metals from various aspects, the sources of production and the negative effects of these metals on human health, the standards and regulations of various agencies to comply with the permissible limits and finally, it also explores the methods of purification, separation and removal of these elements. Regarding treatment methods, a wide range of processes and disadvantages and advantages of each of the old types to the new technologies has been investigated, including chemical precipitation, coagulation-flocculation, flotation, ion exchange, electrochemical treatment, membrane filtration and adsorption. In this regard, absorption is considered as a simple but efficient approach, and has been specifically addressed and sorbents have been studied including active carbon, carbon nanotubes, graphene oxides and biosorbents. Today, nanoscale materials have shown significant applications in the treatment of aquatic environments, due to their unique features such as high surface area, large active sites and high absorption capacity. In this regard, magnetic nanoparticles of iron oxides are considered as cost-effective, high-efficiency and environmentally friendly adsorbents.

SnO2 nanoparticles were first synthesized using a grape extract MEDIA, then characterized by XRD, FE-SEM, TEM, BET, and DLS techniques, and finally used as an efficient adsorbent for the removal of Pb2+ and Cd2+ ions from wastewater. The prepared sample had a tetragonal phase with an average crystallite size of 41 nm (XRD analysis), a specific surface area of 47.08 m2.g-1 (BET method)/46.25 m2.g-1 (BJH method), and a pore diameter of 6.49 nm (BJH method). The best conditions for adsorbing were a 30 ppm concentration of metal ions, ambient temperature, pH of 6, and 0.025 g of an adsorbent. The maximum adsorption for Pb and Cd ions was 97 and 93%, respectively. The Elovich model was matched as the most suitable kinetic model, indicating that the adsorption mechanism is chemical adsorption. The negative values of ΔG (Pb: -6.38 kJ.mol-1; Cd: -4.16 kJ.mol-1) represent the spontaneousness of the adsorption process. The negative values of the parameters ΔH (Pb: -63.0 kJ.mol-1; Cd: -42.95  kJ.mol-1) and ΔS (Pb: -188.8 J.mol-1; Cd: -128.4 J.mol-1) represent the exothermic nature of the adsorption.

In order to determine the role of the US withdrawal from Joint Comprehensive Plan of Action (JCPA) in 2018 in the evolution and change of the poverty framing, this study analyzes how poverty is framed in two categories of specialized (including leadership, Dolat, Mizan, Icana) and general websites (including Fars, Moj and Young Journalists Club) during 2017, 2018 and 2019. For this, it uses Framing as a theory, and the technique of Pan and Kosicki’s Frame analysis as a research method. Findings are categorized in four groups as syntactical, script, thematic, and rhetorical. The review indicates that 42,302 news and reports are distributed in these websites in the research period that 275 were identified as samples and recorded and analyzed in Maxquda software. The results show that, except for the Young Journalists Club, the way poverty is framed has changed on all cases since the imposition of sanctions, and sanctions highlighted as one of the main causes of poverty in the framing of poverty. In regard of agenda setting, the coverage of poverty news and reports is less than 10%; the poverty news coverage has been declining over the three years under study. The websites of Leadership and Moj have the largest coverage, and Young Journalists Club has the least amount (less than 1%) of coverage. Due to his type of agenda setting, the problem of poverty is marginalized in public opinion. The framing of poverty with emphasis on the US withdrawal from JCPA as the cause of poverty represent poverty as a temporary issue, silences the voice of the poor, and depicts the emergence of a new social form in Iranian society.