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...

Cooperative advertising is a cost-sharing mechanism in which a part of retailers' advertising investments are financed by the manufacturers. In recent years, investment among advertising options has become a difficult marketing issue. In this paper, the cooperative advertising problem with advertising options is investigated in a two-period horizon in which the market share in the second period...

With the prevalence of the Web, most decision-makers are likely to use the Web to support their decision-making. Furthermore, many decision-makers begin to seek cooperators on the Internet to help them to solve complex decision problem. In the paper, we propose a research framework for Group Cooperative Decision Support System (GCDSS) and determine three layers such as task layer, cooperator la...

This paper presents a cooperative manipulation method for dual-arm underwater vehicle-manipulator system (UVMS). The objective task is handle valve turning, which common task. We propose that includes the concept of grasping fixed structure such as pipeline. While and valve, entire can be considered parallel manipulator. Because kinematic properties system, load turning distributed between vehi...

Corvids recognize when their caches are at risk of being stolen by others and have developed strategies to protect these caches from pilferage. For instance, Clark's nutcrackers will suppress the number of caches they make if being observed by a potential thief. However, cache protection has most often been studied using competitive contexts, so it is unclear whether corvids can adjust their ca...

Compensation plays an important role in advanced transaction models, cooperative work, and workflow systems. However, in spite of the fact that the correctness of a system may depend on compensation operations, little attention has been devoted to the specification of these operations and the verification of their ability to compensate. In fact, compensation operations are often simply written ...

The paper presents a user interface toolkit to support the rapid construction of cooperative virtual environments. The toolkit is based on extending a 2D model of interaction to 3D virtual environments. The toolkit populates a virtual world with shared 3D interface objects which allow deeper semantic interaction with the virtual world. A principal focus of the toolkit is on the provision of acc...

based on the fact the manipulation of fine nanoclusters calls for more precise modeling, the aim of this paper is to conduct an atomistic investigation for interaction analysis of particle-substrate system for pushing and positioning purposes. in the present research, 2d molecular dynamics simulations have been used to investigate such behaviors. performing the planar simulations can provide a ...

the present study addresses the influence of iran’s post-revolution political structure on the formation of the country’s translated literature system. it examines the translated anglo-american novels pub-lished under two administrations in power after the islamic revolution: 1) the reformist administra-tion, which was a more liberal, leftist administration, seeking to improve iran’s relations ...

it has been reported previously that modulatory effects of pleasant and unpleasant slides on the human acoustic reflex are observed only if startle probes are presented to the left ear or with binaural presentation. the present study examined the effects of the left and the right ear stimulation on modulated startle reflex (as indexed by eyeblink component, measured at the right eye) employing ...