The central issue of the present paper is the study of the causes of the mother tongue decline in the Sahne city in Kermanshah province. The issue of language is beyond the dialect of people and is refer to the form of life and the matter of macroeconomic and political relations. From this perspective, the form of life and the language associated with it explain the praxis of the members of the society. The appropriate method of examining the problem should be able to analyze the justification of agents to their situation, that is why Grounded Theory is chosen as the method of this research and data analysis is taken from abduction reasoning. The results of the analysis introduced the categories of globalizing, modernizing, de-use of language, economic necessity and the government as the most important factors of local language fading. In this essay the meaning of globalization is the globalizing of special type of economic relation that explain other categories role in the process of fading of languages.

Grape leafhopper, Arboridia Kermanshah, is an important pest species in Iranian vineyards. Adults and nymphs cause damages by piercing the leaf tissues and sucking the intracellular contents. This study was focused on the biology of grape leafhopper in Kermanshah Province. Grape leaves was used as sampling units to estimate eggs and nymphs populations and sticky yellow traps was used to estimate adult’s population. A vineyard was sampled weekly, during growing seasons in 2017 and 2018. Our findings indicated that the leafhopper has three generations per year in Kermanshah. Overwintering of adults happened in the remnants of sheds and under grape barks. Population dynamics of A. Kermanshah was studied in relation to temperature and relative humidity. Population dynamics of grape leafhopper was significantly and positively related to temperature in all biological instars of pest in 2017 except the second and the third nymphal instars. Population fluctution was significantly related to relative humidity only for the fifth nymphal instar in 2017. There were significant and positive relationship between temperature and population dynamics of eggs, and the fifth nymphal instars in 2018. Relative humidity changes had also significant relation with all stages except the fourth and the fifth instar nymphs. The density of parasitized eggs by Oligosita pallida Kryger were 93. 24±1. 1% and 89. 74±4. 9% in the first and second sampling year, respectively. Hence, the egg parasitoids were very effective in the last generation, therefor, the chemical control for this pest is not recommended.

Grape leafhopper, Arboridia Kermanshah (Hemiptera: Cicadellidae) is one of the important pests of grapevine in Iran. In this research, the spatial distribution of A. Kermanshah immature stages was investigated in a vineyard of the Kermanshah region, during 2017 and 2018. Grape leaf selected as sampling unit and sampling process carried out every week. The spatial distribution of eggs and immature stages of this pest calculated using: Index of dispersion, Morisita, Lloyd’ s mean crowding index, Iwao’ s patchiness regression and Taylor’ s power law Indexes. Most used methods revealed an aggregated spatial distribution for the pest (b > 1). According to the Iwao’ s method in first sampling year, regression for 4 th and 5 th nymphal instars, was not significant (P-value > 0. 05). In Taylor method for both sampling years and Iwao’ s method for second sampling year, distribution calculated random for 4 th and 5 th nymphal stages. Also, using the Morisita’ s index in both sampling seasons and most (10) sampling dates, for the 4 th and 5 th nymphal stages, random distribution calculated. In both sampling seasons, Taylor’ s power law method found to be more accurate than other methods in determination of the spatial distribution for this pest. Additionally, the lowest optimum sample sizes calculated using Taylor’ s coefficients that were more affordable in comparison with other methods. Knowledge of the spatial distribution of this pest can be useful in designation of suitable sampling programs. Estimation of optimum sample sizes can also be useful in decreasing of sampling costs in both research and management programs.

A B S T R A C T The current research is descriptive-analytical. In terms of purpose, it is in the category of applied research. Both library and field methods have collected the information required for this research. The statistical population of the research consisted of citizens living in Kasra, Azadi, Rezvan, Rahan, Hasht Behesht and Zeytoun residential complexes, which consisted of 6588 people, and the sample size according to the Cochran formula was 364. The study results of the studied residential complexes from the perspective of spatial connectivity indicators indicated that among the investigated complexes, Rahan residential complex had the lowest connectivity index compared to the rest of the complexes, and the highest share of this comparison goes to Kasra residential complex. From the comparison of the complexes based on the interconnection index, we conclude that the location of spaces and accesses in Rahan complex is very weak. Compared to the rest of the complexes, the location of access and communication in Kasra complex is lower. Moreover, Rezvan has been suitable and successful. It is said that the increase of connection in public spaces occurs with increase of sociability. Among the other results of this research, the spatial order component with the path coefficient value of 0.368 has the highest path coefficient among the investigated components. In the first place, the playability component with a path coefficient of 0.253 is in the second place, the multi-purpose component with a path coefficient of 231 0.0 in the third place, the security component with a path coefficient of 0.162 is in the fourth place and the environmental comfort component is in the fifth place with a path coefficient of 0.153 Extended Abstract Introduction In the public space of neighborhoods and residential environments, the issue of sociability has been less addressed. Public spaces can boost the social life of citizens by strengthening social interactions and being involved in social sustainability. The residential environment conveys the residents a sense of well-being and satisfaction through physical, social or symbolic features. In each residential complex, according to the different arrangements of the blocks in it, it is possible to reach different influential indicators of the public space in it, which, according to the way they are arranged, have different potentials from the point of view of sociability in them. Declining sociability causes many problems in relationships between people and reduces the sense of belonging to a place, security, and other issues caused by not paying attention to the quality of collective life in housing. The main question is: - What are the components of the spatial structure affecting the sociability of residential complexes in the city of Kermanshah?   Methodology The current research is descriptive-analytical. In terms of purpose, it is in the category of applied research. Two library and field methods have collected the information needed for this research. In the field method, primary data collection has been done according to the research questions by designing a 5-scale Likert scale questionnaire. The statistical population of the study consisted of citizens living in Kasra, Azadi, Rezvan, Rahan, Hasht Behesht and Zeytoun residential complexes, which consisted of 6588 people, and the sample size was estimated to be 364 people using the Cochran formula. Factors such as the ease of access to the complexes, the willingness and cooperation of the residents and the management of the complexes were also influential in selecting the samples studied in this research. In this research, in order to investigate the sociability of residential complexes based on the   theoretical framework prepared in the present research, the physical indicators affecting this issue include five indicators of "connectivity, interconnectedness, control, selection and depth" in each of The studied samples have been evaluated and analyzed in public spaces including the playground, gathering space, parking lot, and lobby. This research used Depthmap analytical software and structural equation modeling software to analyze the data.   Results and discussion In this research, the relation of sociability of public spaces of residential complexes in Kermanshah, which includes Kasra residential complex, Azadi residential complex, Rezvan residential complex, Rahan residential complex, Hasht Behesht residential complex and Zeytoun residential complex as the basis of the research case. Among the samples studied, Rahan residential complex has the lowest connectivity index compared to other complexes; the largest share of this comparison goes to Kasra residential complex. In the meantime, Zeytoun residential complex, then Azadi, Hasht Behesht and Rezvan have the lowest to the highest amount. It can be seen that the public spaces of Rahan residential complex do not have the desired level of connectivity. As the communication increases, the spaces will become more sociable. From the comparison of the complexes based on the interconnection index, we conclude that the location of the spaces and accesses in the Rahan complex is very weak and lower than the rest of the complexes. According to the numbers extracted, Zeytoun complex and following that Kasra and Rezvan complexes are at the same level of performance, and Azadi and Hasht Behesht complexes have the best performance in this aspect; the placement of access and communications in Kasra and Rezvan complexes has been appropriate and successful. It is said that the increase of connection in public spaces occurs with the increase of sociability. Among the investigated sociability components, the spatial order component with the path coefficient value of 0.368 has the highest path coefficient. In the first place the playability component with a path coefficient of 0.253 is in the second place, and the multipurpose component with a path coefficient of 0.231. In the third place, the security component, with a path coefficient of 0.162, is in the fourth place, and the environmental comfort component is in the fifth place, with a path coefficient of 0.153.     Conclusion Living in the common spaces of residential complexes allows one to be with others comfortably and effortlessly. A person can take a usual walk to be among people, sit on a bench near the door for a short time, and even sometimes look out of the window can be a worthwhile activity. In this research, an attempt was made to examine the condition of the studied residential complexes from the perspective of sociability. The results showed that Rahan residential complex had the lowest level of connectivity index compared to the rest of the complexes and the largest share of this. The comparison reaches Kasra residential complex. In the meantime, Zeytoun residential complex, then Azadi, Hasht Behesht and Rezvan have the lowest to the highest amount. It can be seen that the public spaces of Rahan residential complex do not have the desired level of connectivity. As the communication increases, the spaces will become more sociable. From the comparison of the complexes based on the interconnection index, we conclude that the location of spaces and accesses in Rahan complex is very weak. Compared to the rest of the complexes, the location of access and communication in Kasra complex is lower. And Rezvan has been suitable and successful. It is said that the increase of connection in public spaces occurs with the increase of sociability. Extended Abstract Introduction In the public space of neighborhoods and residential environments, the issue of sociability has been less addressed. Public spaces can boost the social life of citizens by strengthening social interactions and being involved in social sustainability. The residential environment conveys the residents a sense of well-being and satisfaction through physical, social or symbolic features. In each residential complex, according to the different arrangements of the blocks in it, it is possible to reach different influential indicators of the public space in it, which, according to the way they are arranged, have different potentials from the point of view of sociability in them. Declining sociability causes many problems in relationships between people and reduces the sense of belonging to a place, security, and other issues caused by not paying attention to the quality of collective life in housing. The main question is: - What are the components of the spatial structure affecting the sociability of residential complexes in the city of Kermanshah?   Methodology The current research is descriptive-analytical. In terms of purpose, it is in the category of applied research. Two library and field methods have collected the information needed for this research. In the field method, primary data collection has been done according to the research questions by designing a 5-scale Likert scale questionnaire. The statistical population of the study consisted of citizens living in Kasra, Azadi, Rezvan, Rahan, Hasht Behesht and Zeytoun residential complexes, which consisted of 6588 people, and the sample size was estimated to be 364 people using the Cochran formula. Factors such as the ease of access to the complexes, the willingness and cooperation of the residents and the management of the complexes were also influential in selecting the samples studied in this research. In this research, in order to investigate the sociability of residential complexes based on the theoretical framework prepared in the present research, the physical indicators affecting this issue include five indicators of "connectivity, interconnectedness, control, selection and depth" in each of The studied samples have been evaluated and analyzed in public spaces including the playground, gathering space, parking lot, and lobby. This research used Depthmap analytical software and structural equation modeling software to analyze the data.   Results and discussion In this research, the relation of sociability of public spaces of residential complexes in Kermanshah, which includes Kasra residential complex, Azadi residential complex, Rezvan residential complex, Rahan residential complex, Hasht Behesht residential complex and Zeytoun residential complex as the basis of the research case. Among the samples studied, Rahan residential complex has the lowest connectivity index compared to other complexes; the largest share of this comparison goes to Kasra residential complex. In the meantime, Zeytoun residential complex, then Azadi, Hasht Behesht and Rezvan have the lowest to the highest amount. It can be seen that the public spaces of Rahan residential complex do not have the desired level of connectivity. As the communication increases, the spaces will become more sociable. From the comparison of the complexes based on the interconnection index, we conclude that the location of the spaces and accesses in the Rahan complex is very weak and lower than the rest of the complexes. According to the numbers extracted, Zeytoun complex and following that Kasra and Rezvan complexes are at the same level of performance, and Azadi and Hasht Behesht complexes have the best performance in this aspect; the placement of access and communications in Kasra and Rezvan complexes has been appropriate and successful. It is said that the increase of connection in public spaces occurs with the increase of sociability. Among the investigated sociability components, the spatial order component with the path coefficient value of 0.368 has the highest path coefficient. In the first place the playability component with a path coefficient of 0.253 is in the second place, and the multipurpose component with a path coefficient of 0.231. In the third place, the security component, with a path coefficient of 0.162, is in the fourth place, and the environmental comfort component is in the fifth place, with a path coefficient of 0.153.     Conclusion Living in the common spaces of residential complexes allows one to be with others comfortably and effortlessly. A person can take a usual walk to be among people, sit on a bench near the door for a short time, and even sometimes look out of the window can be a worthwhile activity. In this research, an attempt was made to examine the condition of the studied residential complexes from the perspective of sociability. The results showed that Rahan residential complex had the lowest level of connectivity index compared to the rest of the complexes and the largest share of this. The comparison reaches Kasra residential complex. In the meantime, Zeytoun residential complex, then Azadi, Hasht Behesht and Rezvan have the lowest to the highest amount. It can be seen that the public spaces of Rahan residential complex do not have the desired level of connectivity. As the communication increases, the spaces will become more sociable. From the comparison of the complexes based on the interconnection index, we conclude that the location of spaces and accesses in Rahan complex is very weak. Compared to the rest of the complexes, the location of access and communication in Kasra complex is lower. And Rezvan has been suitable and successful. It is said that the increase of connection in public spaces occurs with the increase of sociability.

The grape leafhopper, Arboridia Kermanshah Dlabola (Hemiptera, Cicadellidae), is an economically important pest in most vineyards of Isfahan. In this study oviposition preference and nymphal developmental time of the pest were studied on nine cultivars including White Yaghotii, Black Yaghotii, Askari, Rishbaba, Khalili, Rotabi, Red Keshmeshi, Black and White Keshmeshi under field and semi-field conditions in Isfahan University of Technology vineyard in two consecutive years. No-choice oviposition preference test was performed using leaf cages under natural conditions and results showed that the highest number of eggs laid per female was obtained on Rish-baba and the lowest amount was recorded on Black Yaghotii cultivar. Based on the choice oviposition preference test, using pots in the semi-field conditions, the highest and lowest oviposition rate were recorded on White Yaghotii and Black Yaghotii, respectively. In addition, the developmental times of different nymphal instars of the grape leafhopper were determined on several grape cultivars in natural conditions. The maximum duration of the total nymphal period (29. 33± 0. 3 days) was observed on the Black Yaghotii and the lowest (26. 33± 0. 88 days) on the White Yaghotii. Results of the oviposition preference and duration of the nymphal period indicated that White Yaghotii and Black Yaghotii were the most and least suitable hosts for A. Kermanshah, between the tested cultivars. In this study, no significant correlation (r2=0. 18, P>0. 05) was found between oviposition preference of A. Kermanshah, respectively, and the leaf hair density of different grape cultivars.

Several sampling techniques including sweeping net, D-Vac traps for adults and three different methods of nymph counting (direct count, leaf washing and suction method) were compared in two vineyards in Isfahan, in 1996-1997. Adult grape leafhopper were sampled weekly by sweeping net (10 sample per vineyard) and D-Vac apparatus (10 samples per vineyard each sample unit consisted of 3 minutes suction). Number of nymphs was recorded weekly on leaves. Sample unit was three leaves per tree taken from three strata in the vine canopy of 10 trees. Two parameters including relative variation (RV) and relative net precision (RNP) were used for comparing the sampling methods. Results showed that the best duration time of sampling unit to catch adults was 120-180s by D-Vac. Sweeping net (RV=18.87 and RNP=2.88) was more suitable than D-Vac in IPM sampling program for the method using D-Vac apparatus. D-Vac was more suitable for studying the adult population fluctuations because of a minimum RV during the season. But its sampling costs was more than other methods. Washing method (RV=2.9 and RNP=13.3) was more suitable than direct counting and vacuum in IPM sampling program for nymphs. All three methods were suitable for ecological studies of nymphs but their efficiencies were different for different nymph instars.

Grape leafhopper, Arboridia Kermanshah is one of the important pests of vineyards in Sistan region, which weakens the trees and reduces the quality and quantity of grape production by laying eggs in the leaf tissue, and feeding on leaves and transmission of viral pathogens. During the recent years, grape leafhopper populations have increased sharply in vineyards in Sistan region. This study was conducted in 2019-2020, to evaluate the effect of some insecticides on grape leafhopper by spraying on the grape foliage. The studied insecticides were Thiamethoxam (Actara WG 25%), Thiaclopride(Biscaya OD 24%), Spirotetramat(Movento SC 10%), Imidacloprid(Confidor SC 35%), Fipronil(SC 5%), Chlorfluazuron(Atabron EC 50%) and Control. The insecticide efficacy, seven days after spraying in the first and second years were 100 and 90. 10% for Thiamethoxam, 99. 33 and 91. 06% for Thiaclopride, 99. 74 and 71. 97% for Spirotetramat 0. 75ml/lit, 99. 79 and 83. 14% for Spirotetramat 1ml/lit, 95. 63 and 97. 56% for Imidacloprid, 84. 22 and 71. 97% for Fipronil, 84. 13 and 66. 84% for Chlorfluazuron respectively. Fipronil and Chlorfluazuron had less effective on this pest compared to other treatments. In general, Thiamethoxam, Thiaclopride, Spirotetramat, Imidacloprid are suitable candidates for controlling grape leafhopper.

Grape leafhopper, Arboridia Kermanshah Dlabola (Hemiptera: Cicadellidae), is the most important pest of vineyards in Iran, that by laying eggs in the leaf tissue, feeding on leaves and transmission of viral pathogens, weaken the trees and reduce the quality and quantity of grape production. To reduce the use of chemical insecticides, application of mineral compounds was tested in a vineyard in Khalilabad region (Khorasan Razavi Province), in 2015. Treatments included kaolin (5% concentration), sulfur WP (3000 ppm), sulfur dust, a mixture of kaolin and sulfur WP, phosalone insecticide (1500 ppm), and control (water spray), respectively. Spraying times including late April, early May and mid-July, Samplings were carried out one day before and 3, 7, 14 and 21 days after spraying. At each sampling time, the total number of leafhopper adults and nymphs on 5 leaves per tree were counted. Based on the field studies, mineral compounds application reduced the leafhopper population at all spraying intervals. The mean percentage of leafhopper population reduction was observed in treatments including kaolin, kaolin and sulfur mixture, phosalone insecticide, sulfur WP, sulfur dust and control in 3 days after spraying, 89, 86, 57, 25, 25 and 3 percent, respectively, and also in 21 days after spraying, 48, 47, 17, 7, 12 and 2 percent, respectively. Therefore, kaolin (Sepidan® WP), with 5% concentration, or kaolin and sulfur mixture spray over the whole canopy of trees could be used successfully to reduce leafhoppers population on grape.