The purpose of the present research was to study the effect of cooperative methodology on the social skill development of the primary students. The methodology was quasi-experimental, with pre-test, post-test, and control group. The population of the research was all 486 ‘Laleh’ primary school male students in the year of 2009-2010, among whom, 61 four-grade participants were finally chosen. Th...

warranty as a kind of service contract today plays a role key in business and legal transactions. in this paper, we present a manufacturer, an agent and a customer's model under different service contracts suggestions. the manufacturer's profit is maximized by determining sale price, warranty period and warranty price. in addition we obtain optimal maintenance cost or repair cost for ...

The constraints that cooperative and non-cooperative dairy farms face in expanding milk production have been reported based on a field study on some cooperative and non-cooperative dairy farms in the state of West Bengal. The study has shown that non-cooperative farms face major constraints and high severity compared with cooperative farms in expanding milk production. Also important is that mo...

In this paper, an iterative incremental relay selection (IIRS) scheme is considered for wireless cooperative networks in order to increase the reliability of transmission. Different from the conventional incremental relay selection which incrementally selects a best relay for only one iteration; the IIRS scheme iteratively applies the incremental relaying and relay selection processes. To evalu...

This paper studies optimal power allocation to minimize symbol error rate (SER) of amplify-and-forward cooperative diversity networks. First, we analytically solve optimal power allocation problem to minimize SER for three different scenarios, namely, multi-branch single-relay, single-branch multi-relay and multi-branch multi-relay cooperative diversity networks, all subject to a given total re...

Abstract. The present research aims to identify and analysis the effectiveness of rangeland management cooperatives in Gonbad city. The study was conducted in 2015. The research was performed in descriptive manner as survey method. The subjects (participants) included all members of rangeland management cooperative in Gonbad city. The sample size was determined by Cochran (n=200). For sampling ...

in this paper, we consider a cooperative cognitive radio network in which there is an ofdm primary link and multiple single carrier secondary links.the primary link is required to maintain its secrecy rate above a predefined threshold. if the secrecy rate requirement is not satisfied, the secondary system help primary link to maintain its secrecy rate requirement. in doing so, the secondary trans...

conclusions meeting the prerequisites to incorporating tbl in the curriculum of medical universities plays a pivotal role in its success. accordingly, in the assessment of the curriculum of medical universities, these requirements should be fully identified and fulfilled so as to be able to devise appropriate plans for the success of teaching methods. context this review study, performed in 201...

study of different islamic agreements efficiency in free of interest banking system through modern scientific approaches is of outmost importance. in this paper attempt has been made to study and compare the efficiency of charity loan agreement and cooperative agreements by dea approach in branches of mellat bank in kermanshah province as case study. in this direction, the data related to five ...

the area of bargaining mechanisms has been well explored in both multi-agent systems and economics. in bargaining, participants raise/reduce their offers until an agreement is hopefully reached. in this dynamic environment, finding superior agreements without having the knowledge about the strategic private information of the counterpart is considerable. in this paper, we present a simple semi-...