Psychosocial stress influences cognitive abilities, such as long-term memory retrieval. However, less is known about the effects of stress on cognitive flexibility, which is mediated by different neurobiological circuits and could thus be regulated by different neuroendocrine pathways. In this study, we randomly assigned healthy adults to an acute stress induction or control condition and subse...

Statement of purpose: The purpose of these working papers is to promote the circulation of research results (Research Series) and analytical studies (Documents Series) made within the National Bank of Belgium or presented by external economists in seminars, conferences and conventions organised by the Bank. The aim is therefore to provide a platform for discussion. The opinions expressed are st...

The LEP energy upgrade up to fi =189 GeV has allowed us to extend substantially the potential of searches for new physics. Results on searches for Higgs bosoms and supersymmetric particles obtained by the ALEPH, DELPHI, L3, and OPAL experiments are reported. No evidence of any signal is observed. Therefore, new limits on the Higgs boson masses as well as on the masses of the various supersymmet...

We would like to congratulate Fruchter et al 1 for their ingenious, effective, and minimally invasive way of treating the very challenging condition of bronchopleural fi stulas as reported in a recent issue of CHEST (March 2011). However, because we were cited in their work, we must make a correction. The misunderstanding is that our fi rst publication was a case report of our fi rst patient (5...

Objective: Acceptance and Commitment Therapy (ACT) tries to increase the psychological acceptance of individuals during mental experiences (thoughts, emotions, etc.) and to decrease their ineffective control of behaviors. This study aimed to determine the impact of ACT on the psychological flexibility of students with thalassemia in Zahedan City, Iran.  Methods: The present study was a quasi-e...

Introduction In examining wireless-internet technologies (Wi-Fi), several ethical issues are exposed. While the unauthorized use of Wi-Fi is illegal in a few select cases, what is considered permissible still varies from state to state. What does not vary, however, is the fact that individuals are going to great lengths to locate unsecured wireless access points whether it is for their own bene...

In this paper the problem of obtaining the degree of flexibility that maximizes the total profit in an existing process flowsheet is addressed. Assuming a linear model for the process and given probability distribution functions for the uncertain parameters, the curve relating the expected revenue to the flexibility index is generated. An efficient stochastic optimization method is developed fo...

1. Given topological spaces X and Fand two continuous mappings ƒ o and jfi from X to F (denoted by fo, fi : X—> F) we say that ƒ o is homotopic to jfi (denoted by fo—fi) if there exists a continuous family of continuous mappings ht: X—+Y for O^t^l such that ho=fo and h =/ i . Intuitively fo<^fi if the map ƒ o can be continuously deformed into the map jfi. I t is easily seen [4; 7] that the rela...