List of Articles زیست&#172

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  1 - Evaluation and analysis of viability in 22 districts of Tehran Metropolis
    jamal mohammadi  
  Urbanization and human populations tend to urban environments, the substrate with the importance of the concept of urban livability has provided more than before. One of the basic principles of sustainable urban development and urban livability, such as a coin has two More

  Urbanization and human populations tend to urban environments, the substrate with the importance of the concept of urban livability has provided more than before. One of the basic principles of sustainable urban development and urban livability, such as a coin has two sides. It is a living on it, and the second is ecological sustainability. This study aims to evaluate and analyze biological markers in 22 regions of metropolitan Tehran. The research, analytical and survey and our objective is applied. Data collection tools as a library survey and questionnaire made; 385 citizens in metropolitan Tehran to probability sampling evaluated and the information gathered by the analysis of T test samples, analysis of variance and path analysis software SPSS software was used for statistical analysis. The results indicate that among the components of habitability in Tehran, Physical parameters of the statistic t, 0.378 weaker economic indicators calculated by 1.775 is in a better position than other indices. After that indicators of social and environmental statistics with statistics 440/0 481/0 next in rank rather been. After that indices of social with statistics 0.440 and environmental statistics 0.481 Next in rank are lodged. The results also showed a significant difference in viability between regions in Tehran have seen a significant difference. In the meantime, the economic indicator with the greatest amount of discrepancy is F 47.215. Manuscript profile
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  2 - Investigating the Impact of Border Markets
    roonak ghaffari  
  Eliminating rural areas, in addition to improving the quality of livelihood of villagers, will have a positive and favorable reflection on neighboring countries. In this regard, the present study was conducted with the aim of investigating the status of habitat of Dazli More

  Eliminating rural areas, in addition to improving the quality of livelihood of villagers, will have a positive and favorable reflection on neighboring countries. In this regard, the present study was conducted with the aim of investigating the status of habitat of Dazli rural district and Khavmirabad rural district in the west of Kurdistan province. The method of doing research is descriptive-analytic. Data gathering was done using documentary and field resources based on a questionnaire and interview. The statistical population of this research consists of 4032 households. According to the corrected formula of Cochran, 260 families were selected as sample size. Sampling was done by stratified sampling and data analysis was done using SPSS software. The findings of the research indicate that the establishment of the market on the environmental and physical dimensions of the studied villages has had a positive and significant impact on the previous period. Also, the impact of border markets on the rural housing index and the value of agricultural land had a greater effect. Manuscript profile
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  3 - The Origin and Application of Flame Retardant Biobased Polymers in Cellulosic Industry
  mehrnoosh tavakoli ali ghasemian
  Nowadays, In order to reduce environmental footprint, polymer industry has started to develop new materials based on natural resources. Two kinds of biobased polymers can be developed. The first one corresponds to macromolecular structures existing in nature as cellulos More

  Nowadays, In order to reduce environmental footprint, polymer industry has started to develop new materials based on natural resources. Two kinds of biobased polymers can be developed. The first one corresponds to macromolecular structures existing in nature as cellulose, lignin, starch, alginate and so-on that most of them are probably the ones that derived from well-established cellulosic industries. Nevertheless, the thermal stability of these rich in oxygen structures are limited, they release relatively little heat during burning and are often able to char. Other biobased polymers are made up of molecules synthesized from natural resources. Not only polymers but also all additives used to modify their properties can be biobased to meet sustainable development. Intensive research is devoted to develop flame retardant biobased polymers from various raw resources. These flame retardant biobased polymers can be used directly as they are, alone or as a component of a more complex system. This is especially true when the molecules are phosphorus-rich as DNA or phytic acid or charring as lignin. All the efforts reviewed in this paper, show that a major objective is to develop 100 % biobased materials suitable for applications requiring high flame retardancy level. Different biomolecules from the cellulosic industry are also the most promising in flame retardancy. Manuscript profile
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  4 - (Biostratigraphy and microfacies of the Asmari Formation in south flank of Mish anticline (northeast of Gachsaran
  Saber Ahmadi Ali seyrafian Hosyen vaziri-Moghadam
  Asmari Formation at the section of the south flank of Mish anticline (northeast of Gachsaran), located 22 km northeast of Basht city, in vicinity village Kalagh ¬Neshin is investigated and has a thickness of 281 meters. In this research, biostratigraphy and microfacies More

  Asmari Formation at the section of the south flank of Mish anticline (northeast of Gachsaran), located 22 km northeast of Basht city, in vicinity village Kalagh ¬Neshin is investigated and has a thickness of 281 meters. In this research, biostratigraphy and microfacies of the Asmari Formation in this section were studied and the results were compared with 5 section of Asmari Formation in similar regions and close to it. By studying on 172 microscopic sections, 3 the biozone for Asmari Formation in the section the study was carried out and the section studied given that is: Lepidocyclina – Operculina – Ditrupa assemblage zone. Archaias asmaricus – Archaias hensoni – Miogypsinoides complanatus assemblage zone. Indeterminate zone. According to the study of benthic foraminifera and biozones, the cut off age is from the late Oligocene (Rupelian-Chattian) to the early Miocene (Aquitanian). Microfacies studies led to identify 10 microfacies and 4 subfacial belonging to the open marine and lagoon (semi-closed and enclosed) environments, which includes the external, intermediate, and interior parts of a hemocalinal ramp. Manuscript profile
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  5 - The Mediating Role of Travel Motivation and Responsible Behavior with the Relationship between Environmental Attitude and the Sustainable Development of Ecotourism Case: Cities of Mahdishar and Semnan
  samaneh parsa سید حسن کابلی sakineh jafari
  This study examined the relationship between environmental attitude and sustainable development of ecotourism, and the mediating role of travel motivation and environmentally responsible behavior of ecotourists in Mahdishahr and Semnan. The population included all ecoto More

  This study examined the relationship between environmental attitude and sustainable development of ecotourism, and the mediating role of travel motivation and environmentally responsible behavior of ecotourists in Mahdishahr and Semnan. The population included all ecotourists in Mahdishar and Semnan. The participants were 250 (122 males and 128 females) and were selected via a Convenience Sampling method. All participants completed the scales of environmental attitude, motivation, environmentally responsible behavior and sustainable development of ecotourism. Using LISREL, the data were analyzed by the path analysis model. The results showed that environmental attitude did not have a direct influence on the sustainable development of ecotourism. Environmental attitude had a direct, positive and significant influence on travel motivation and environmentally responsible behavior. Environmental attitude had an indirect, positive and significant impact on sustainable development of ecotourism with the mediating role of travel motivation and environmentally responsible behavior. Manuscript profile