This article aims to study lease and hiring contract in the Iranian-Islamic setting and analyze the asymmetric information problem in these contracts. For doing this, we study the characteristics of lease and hiring contracts in Iran (real world experimental characteristics that recognized in other studies), using library method, then we mathematically model different aspects of asymmetric info...

o bjectives: headgears are among the effective orthodontic appliances to achieve treatment goals. unilateral molar distal movement is sometimes needed during an orthodontic treat- ment, which can be achieved by an asymmetric headgear. different unilateral headgears have been introduced. the main goal of this study was to analyze the force system of uni- lateral expanded outer bow asymmetric hea...

introduction abnormal neural impulses in the nervous system may lead to various diseases and disabilities. high frequency alternating currents (hfac) has been used to block the propagation of such impulses and improve the symptoms or disabilities. the technique is safe, reversible, and relatively selective, and its reliability, the optimum stimulation parameters, and elimination of the onset re...

in this work a new resistance model has been presented based on that of henis-tripodi which can be used for interpretation of gas permeation data in composite and asymmetric membranes. in contrast to the previous works, in this model the fraction of the support layer surface that includes the pores filled with coating material has been taken into account. the influences of the filled pores on s...

Triggered by recent experimental results, temporally asymmetric Hebbian (TAH) plasticity is considered as a candidate model for the biological implementation of competitive synaptic learning, a key concept for the experience-based development of cortical circuitry. However, because of the well known positive feedback instability of correlation-based plasticity, the stability of the resulting le...

We develop an extension of Least Commitment Search (LCS), which represents a new strategy for recovering from failure in planning. The particular type of failure addressed here is that which requires extra actions to be introduced into the plan. The strategy is explored in the context of an optimisation problem, that of generating plans of minimal length when given a single resource. There are ...

The contributions of American psychologists to war have been substantial and responsive to changes in U.S. national security threats and interests for nearly 100 years. These contributions are identified and discussed for four periods of armed conflict: World Wars I and II, the Cold War, and the Global War on Terror. In contrast, about 50 years ago, largely in reaction to the threat of nuclear ...

Psychosocial and mental health supports for war-affected children frequently are limited by a deficits focus. Current research and practice indicate the value of a strengths-based approach that supports children's resilience and supports a positive environment for children and builds on existing strengths. This paper analyzes how community-based child protection mechanisms are a cornerstone of ...

The conduct of a qualitative research interview is a complex social interaction that has the potential to influence, or be influenced by, both the researcher and the study participant. When a researcher is identified as a professional nurse, the identification of this role has the potential to influence the researcher-participant interaction. To understand the effect of a nurse-researcher's inv...

Injuries due to small arms and light weapons (SALW) are common in developing countries with ongoing collective violence, or those that exist in a post-conflict state. Uganda has a long history of armed conflict, but little quantitative evidence is available about the extent of the problem of SALW. We performed a review of all injuries due to SALW at Mbale Regional Hospital in eastern Uganda for...