---

The remains of the historical city of AskarMokram are situated in Khuzistan near the Band-e Ghir village in the form of various Tepes (hills) on either sides of the Gargar River. On the basis of historical and geographical sources, the city was established in the second half of the first century during the gradual development of the military camping place of Mokram- ibn- Motraf or Mokram- ibn- Fazar, the servant of Hajaj–ibn-Yusuf Saqafi in the Sasanian village or small city named Rostaqobad; therefore, the city is called “AskarMokram”. The city was gradually developed on either sides of Masroqan River and became famous as the center of Khoreh/Koreh with the same name, and as one of the most important cities of Khuzistan during the Islamic period. The strategic and military situation of the city, which was located in the way of Iraq and Khuzistan to Fars and Lurestan, and was considered before the establishment of the city (and actually is regarded as the main reason of the forming of AskarMokram), made the city more important. It seems that when the irrigation system of Masroqan River and the agricultural economy of the region were declined in the last centuries of the medial Islamic period, the importance of AskarMokram was reduced, and probably the city abandoned completely during the fifteenth century A.D.    In this article, it is attempted to render the comprehensive picture of the city during the Islamic period by the exact study of historical and geographical sources, and make comparison between them.

---

This study aimed to examine the policies in the Iranian English for Academic Purposes (EAP) education and the extent to which objectives match the policies and are materialized through pedagogical practices implemented. To this end, EAP course descriptions developed by macropolicy-making level were evaluated through document analysis and triangulated with the authorities’ perspectives through interviews to see the degree of conformity between policy and practice. Seven policy areas in Kaplan and Baldauf’s (٢٠٠٥) language-in-education planning (LEP) were chosen as the theoretical framework of the study. Based on EAP document analysis and interviews with the authorities, the similarities and discrepancies in micro and macro levels were clarified. The results showed that EAP course descriptions do not include any comment on some policy areas, and there were discrepancies in policy and practice due to such factors as lack of communication channel between the EAP stakeholders and policy-makers. Finally, the study revealed that due to deficiencies in both policy and practice and in order to reach an acceptable status, EAP programs are in dire need for reconceptualizing policy-making and practice.
 

---

Teacher professional development rests on the provision of knowledge, development of skills, and change of attitudes of teacher candidates and in-service teachers. Teachers’ professional knowledge, perceptions and teaching practice contribute greatly to student learning. This study sets out to investigate the relationships and inter-relationships among professional knowledge, academic self-concept and self-reported instructional practice which was found as a research gap in the literature. Using a sample of 92 pre-service TEFL teachers in Iran, a significant positive correlation was found between professional knowledge and academic self-concept. The findings also revealed that different domains of professional knowledge are not related to each other for TEFL. Finally, the obtained results indicated that academic self-concept affected instructional practice in total and at the level of sub-dimensions while professional knowledge had an effect on the two dimensions of instructional practice, namely cognitive activation and student learning support but not on the dimension of classroom management.

---

  Consumption of breaded food has become very popular over the last few years. In this study the effects of soy and corn flour and ultrasound in batter on quality of deep-fat fried chicken nuggets with compeletly randomized design was evaluated. Wheat flour in batter formula was replaced with 5, 10% soy and corn flour and batter was sonicated70 –KHZ. Chicken nuggets were fried at 170ºC. Properties like texture, color, moisture content and sensory properties were determined. Means were compared with Duncan test, Results showed that compering with control batter, soy flour addition provided the highest texture in batter formulation. Batters containing10% corn flour without ultrasound showed the lower moisture content .The lowest moisture loss was batters containing10% soy flour with ultrasound. Sensory evaluation didn't show any significant reduction (P< 0 .05) in texture and overall acceptability scores of treatment products;   L* value in corn flour10% with ultrasound Increased, The lowest was in10% (not sonicated) soy flour. Best texture was in5% soy flour with ultrasound and the worth was in corn flour 10% (not sonicated).

---

---

With the global spread of English as the lingua franca for academic publishing, non-native researchers and university students are constantly facing linguistic barriers including insufficient vocabulary knowledge in writing for publication. This persistent need motivated the development of a good number of corpus-based word lists for frequently used academic and technical words in research articles across disciplines. Nevertheless, despite its importance in corpus-based study of language for word list development, replication research has received far less attention in this line of inquiry. The current study aimed to address this gap and replicated two published studies that investigated the use of academic vocabulary in applied linguistics research articles. To this end, research articles published from 2010 to 2020 in 20 well-known journals in the field were collected, and a corpus with around 48 million words was compiled and analyzed. The findings indicated that academic vocabulary accounted for 11.46% of the corpus, which is similar and close to the reported coverage of the AWL in replicated studies. However, regarding the frequently occurring academic and non-academic content words, the findings showed considerable variation with respect to the results reported earlier. In light of these findings, the study highlighted the importance of replication research to test the reliability of corpus-based vocabulary studies that developed field-specific academic word lists. Finally, the study developed an updated version for applied linguistics academic word list, that might be regarded as a resource and guide for the vocabulary learning component of the relevant EAP programs in the field.

---

---

The major concern in Shallow arches behavior under lateral loading is their instability at a critical load, which can make the structure to collapse or displace to another stable configuration, a phenomenon called snap through. By introduction of functionally graded materials in recent years, and incorporating them into this problem, interesting results can be obtained which can give structures with favorable stability properties. In this work, dynamic stability of the hinged-hinged functionally graded shallow arch under implusive loading is investigated. Material properties vary through the thickness by power law. Nonlinear governing equations are derived using Euler-Bernoulli beam assumption and equations of motion are expressed by a nonlinear differential-integral equation. The solution utilizes a Fourier form of response. The procedure of analysis of dynamic stability that is followed in this work uses the total energy of the system and the Lyapunov function in the phase space that consists of essentially three steps: First, one finds all the possible equilibrium configurations of the shallow arch. Next, the local dynamic stability of each of the equilibrium configurations is studied.. Last, when the preferred configuration from which a snap through may occur is locally stable and when there is at least one other locally stable equilibrium configuration, then we proceed to find a sufficient, condition for stability against snap through. The effect of gradation on stability and critical load of the arch is investigated in detail.

---

One of the remarkable concerns in Shallow arches’ behavior under lateral loading is snap through, a phenomenon which can make the structure collapse or displace to another stable configuration. Introducing functionally graded materials in recent years led to some interesting results, for instance, using functionally graded materials in shallow arches can give structures with favorable stability properties. In this work, we investigate dynamic stability of the pined-pined functionally graded sinusoidal shallow arch under impulsive loading. Material properties vary through the thickness by power law function. Nonlinear governing equations are derived using Euler-Bernoulli beam assumption and equations of motion are expressed by a nonlinear differential-integral equation. The solution utilizes a Fourier form of response. The procedure to analyze dynamic stability followed here uses total energy of the system and Lyapunov function in the phase space. We find the stable region against dynamical snap through under material properties’ variation through the thickness of shallow arch. We also proceed to find the sufficient critical load in order to make the dynamical snap through occur. The results are analyzed in detail and illustrated in some diagrams.

---

“Tensegrity” refers to a class of discrete structures with two force members (bars and cables) wherein bars only take tensile loads and cables only take compressive loads. The pre stressed members are interconnected so as to form a self equilibrium structure. Compared to a truss supporting the same external loading, a tensegrity structure has fewer members and could weigh less. Determining the stable topology (member connectivities), form (node coordinates) and size (cross sectional areas of members) of a tensegrity structure for weight minimization is a challenging task, as the governing equations are nonlinear and the conventional matrix analysis methods cannot be used. This article addresses the weight minimization of a class one tensegrity structure with a given number of bars and cables, anchored at certain nodes and supporting given load(s) at certain node(s). Member connectivities and their cross sectional areas and force densities are taken as design variables, whereas the members’ strength and buckling requirements and maximum nodal displacements constitute the constraints, along with the coordinates of the floating nodes to make the structure symmetric. Constraints are evaluated through the nonlinear shape design of the self equilibrium structure and the linear analysis of the loaded structure, assuming small displacements. Using a novel approach, optimization is simultaneously performed in multiple promising areas of the solution space, resulting in multiple, optimum solutions. The diversity of the solutions is demonstrated by applying the proposed approach to a number of structural design problem.

---

Today, national parks as a natural resource capital are facing many challenges. Therefore, economic valuation of its functions and services is one of the most important categories of planning and sustainable ecosystem management. The present study aimed to estimate the economic value of ecosystem services in the Lar National Park, Iran. To this aim, the methods of revealed willingness to pay, imputed willingness to pay, and expressed willingness to pay were used. The results of this research showed the economic value of water resources reservation services (1619.802 Million Dollars, $M), soil conservation services (9.218 $M), soil production services (0.804 $M), recreation services (3.004 $M), habitat service (36.722 $M), production services (1.312 $M), carbon sequestration (847.109 $M), and oxygen supply services (93.618 $M). Finally, the total economic valuation of the use services was estimated to be $1867.087 M. Since more than 97% of the values are related to the water conservation and gas regulation services, sustainable ecosystem management is essential for preserving and expanding these services.

---

Cheetah is one of the endangered wildlife species in different countries around the world, including Iran, and has been included in the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Today, Iran is the only place where Asiatic Cheetahs can be found, and the latest estimates indicate that only 30 to 40 Asiatic Cheetahs remain. The present study aimed to prioritize the ecosystem functions and services for Asiatic Cheetahs in Iran from the perspectives of experts and professionals. After a literature review, based on the 2018 Common International Classification of Ecosystem Services (CICES), among Provisioning, Cultural, and Regulation and Maintenance functions, the Cultural and Regulation and Maintenance functions and 14 services were extracted for Asiatic Cheetahs in Iran. Next, by using the Analytic Hierarchy Process (AHP) and the Delphi method, the priority of functions and services was investigated in two stages. The results showed that the most important functions and services were, respectively, as follows: Cultural (4.37), Regulation and Maintenance (4.32) functions, and services related to the Bequest value (4.95) of Asiatic Cheetahs; Existence value (4.93); Educational (4.58); Aesthetic (4.47); Entertainment (recreation and ecotourism) (4.44); Symbolic (4.40); Scientific (3.67), Cultural (3.55), Biodiversity (4.82); and Disease control (3.82). The necessary measures for preventing the extinction of Asiatic Cheetahs include the construction of wildlife corridors in habitats of Cheetahs, promoting participation of communities and non-governmental organizations in the sustainable management of Cheetah habitats, and designing coins with Cheetah to attract public attention and support.