Unequal outside options in the lost wallet game

Experimental evidence suggests the size of the foregone outside option of the first mover does not affect the behavior of the second mover in the lost wallet game. In this paper we experimentally compare the behavior of subjects when they face an outside option with unequal payoffs, i.e., the first mover gets 10 and the second mover gets 0, and when they face an outside option with equal payoffs, i.e., both get 5. Consistent with the most of the literature we do not find a significant difference in behavior of second movers.Experimental economics, fairness, inequality, lost wallet game, outside option

Synchronous Programs Testing Language (SPTL)

International audienceSPTL is a language designed to test applications developed for synchronous controllers. It makes possible to provide a specification of the software external environment. This specification can then be processed to generate test input sequences guided by directives such as profiles of use and scenarios. We introduce a definition and an overview of the language through a simple example of a reactive system that we present in this paper

Synchronous Programs Testing Language (SPTL)

National audienceSPTL is a testing language for synchronous software. The goal is to generate test input sequences in conformance with a specification of the software external behavior and of guiding directives such as profiles and scenarios. In this document we present an overview of the language with a simple example of a reactive system testing.SPTL est un langage de test pour les logiciels synchrones. L'objectif est de générer des séquences d'entrée de test en conformité avec les spécifications du fonctionnement externe du logiciel et avec des directives pour guider ces tests telles que des profils et des scénarios. Dans ce document, nous présentons un aperçu du langage avec un exemple simple d'un test d'un système réactif

Analyse ergonomique semi-quantitative des contraintes biomécaniques du rachis cervical parmi les opérateurs sur écran dans les établissements universitaires tunisiens

Introduction: évaluer les contraintes biomécaniques associées aux cervicalgies parmi les opérateurs sur écran. Méthodes: étude ergonomique réalisée au prés de 325 opérateurs sur écran dans 25 établissements de l’université du centre tunisien, basée sur une étude anthropométrique du poste du travail sur écran et une analyse semi-quantitative sur des enregistrements vidéo des activités des travailleurs conduits sur une période représentative de 30 minutes. Résultats: la prévalence des cervicalgies évaluée à 72,3%, a concerné une population de travailleurs qui exerçait avec un siège et un plan de travail inadaptés (84,6%) et un écran bas situé par rapport au regard horizontal (81,2%). L’analyse semi-quantitative par enregistrement vidéo du poste de travail a conclu que la nuque était maintenue en flexion franche de plus de 40 degrés sur 69% du temps global du travail. La flexion latérale a été visible sur 50,3% du temps de travail et la rotation droite ou gauche sur 57,4% du temps de travail. Ainsi, Les opérations de prise d’information de l’écran, de regard du clavier et de consultation des documents se sont dégagées comme les plus de contraignantes pour la nuque sur le plan gestuel et postural. Conclusion: nos résultats mettent en évidence l’importance des contraintes biomécaniques associées à la conception du poste de travail sur écran non conforme aux dimensions anthropométriques ergonomiquement recommandées. Ces contraintes sont associées à une prévalence élevée des cervicalgies traduisant la nécessité d’aménagement ergonomique de ces postes de travail pour prévenir ce fléau

2,4-Bis(arylethynyl)-9-chloro-5,6,7,8-tetrahydroacridines: synthesis and photophysical properties

Acridine derivatives have attracted considerable interest in numerous areas owing to their attractive physical and chemical properties. Herein, starting from readily available anthranilic acid, an efficient synthesis of 2,4-bis(arylethynyl)-9-chloro-5,6,7,8-tetrahydroacridine derivatives was accomplished via a one-pot double Sonogashira cross-coupling method. The UV-visible absorption and emission properties of the synthesized molecules have been examined. Additionally, theoretical studies based on density functional theory (DFT/B3LYP/6-31G(d)) were carried out

White hard clam (Meretrix lyrata) shells media to improve phosphorus removal in lab-scale horizontal sub-surface flow constructed wetlands: Performance, removal pathways, and lifespan.

This work examined the phosphorus (P) removal from the synthetic pretreated swine wastewater using lab-scale horizontal sub-surface flow constructed wetlands (HSSF-CWs). White hard clam (Meretrix lyrata) shells (WHC) and Paspalum atratum were utilized as substrate and plant, respectively. The focus was placed on treatment performance, removal mechanisms and lifespan of the HSSF-CWs. Results indicated that WHC-based HSSF-CW with P. atratum exhibited a high P removal (89.9%). The mean P efluent concentration and P removal rate were 1.34 ± 0.95 mg/L and 0.32 ± 0.03 g/m2/d, respectively. The mass balance study showed that media sorption was the dominant P removal pathway (77.5%), followed by microbial assimilation (14.5%), plant uptake (5.4%), and other processes (2.6%). It was estimated the WHC-based bed could work effectively for approximately 2.84 years. This WHC-based HSSF-CWs technology will therefore pave the way for recycling Ca-rich waste materials as media in HSSF-CWs to enhance P-rich wastewater purification

Application of remote sensing and GIS techniques for exploring construction material from inaccessible terrains; case study in Eastern Province of Sri Lanka

Demand for construction materials in the North and Eastern provinces of Sri Lanka has risen significantly due to accelerated construction work in progress to restore the destroyed infrastructures during the civil war. Ground surveying methods to locate quarries within this area are not applicable due to security reasons and the larger area to be covered. Thus a Remote Sensing method is suitable for this task. This study introduces a methodology to locate suitable quarries and sand mines for constructions in the Eastern province. LANDSAT ETM+ images were used for classification. Feasible rocks and sand deposits for quarry operations were located using Multicriteria Analysis (AHP).The highly suitable rock quarries and sand deposits were considered in closest facility analysis. The results showed that the integration of Remote Sensing (RS) and Geographic Information System (GIS) can serve as an effective tool in demarcating suitable sites for construction material and this methodology can also be applied for projects of similar nature