OBJECTIVE To evaluate inspiratory volume in patients undergoing cardiac surgery and to determine the effects that incentive spirometry (IS) and the breath stacking (BS) technique have on the recovery of FVC in such patients. METHODS A prospective, controlled, randomized clinical trial involving 35 patients undergoing cardiac surgery at the Hospital de Força Aérea do Galeão (HFAG, Galeão Air F...

a r t i c l e i n f o a b s t r a c t JEL classification: D82 D86 C72 C92 Keywords: Mechanism design Incentive theory Private information Laboratory experiment In the basic adverse selection model, a seller makes a contract offer to a privately informed buyer. A fundamental hypothesis of incentive theory is that the seller may want to offer a menu of contracts to separate the buyer types. In th...

A Mobile Ad hoc Network (MANET) is a system of wireless mobile nodes that dynamically self-organize in arbitrary and temporary network topologies. Both selfish and privacy issues have been identified as two crucial human factors for the wide acceptance of MANETs. Security has become a primary concern in order to provide protected communication between mobile nodes. In this work we present a rev...

Recent work indicates that both orbitofrontal cortex (OFC) and the basolateral complex of the amygdala (ABL) are involved in processes by which cues are associated with predicted outcomes. To examine the respective roles of these structures in discrimination learning, rats with bilateral sham or neurotoxic lesions of either OFC or ABL were trained on a series of four 2-odor discrimination probl...

Motivated by the desire for high-throughput public databases (i.e., “blockchains”), we design incentive compatible protocols that run “off-chain”, but rely on an existing cryptocurrency to implement a reward and/or punishment mechanism. Our protocols are incentive compatible in the sense that behaving honestly is a weak Nash equilibrium, even in spite of potentially malicious behavior from a sm...