070-I * TRIBECA STUDY: (TRI)FECTA (B)IOPROSTHESES (E)VALUATION VERSUS (C)ARPENTIER MAGNA-EASE IN (A)ORTIC POSITION

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Office worker response to an automated venetian blind and electric lighting system: A pilot study

A prototype integrated, dynamic building envelope and lighting system designed to optimize daylight admission and solar heat gain rejection on a real-time basis in a commercial office building is evaluated. Office worker response to the system and occupant-based modifications to the control system are investigated to determine if the design and operation of the prototype system can be improved. Key findings from the study are: (1) the prototype integrated envelope and lighting system is ready for field testing, (2) most office workers (N=14) were satisfied with the system, and (3) there were few complaints. Additional studies are needed to explain how illuminance distribution, lighting quality, and room design can affect workplans illuminance preferences

An extreme firm-specific news sentiment asymmetry based trading strategy

News sentiment has been empirically observed to have impact on financial market returns. In this study, we investigate firm-specific news from the Thomson Reuters News Analytics data from 2003 to 2014 and propose an optimal trading strategy based on a sentiment shock score and a sentiment trend score which measure extreme positive and negative sentiment levels for individual stocks. The intuition behind this approach is that the impact of events that generate extreme investor sentiment changes tends to have long and lasting effects to market movement and hence provides better prediction to market returns. We document that there exists an optimal signal region for both indicators. And we also show extreme positive sentiment provides better a signal than extreme negative sentiment, which presents an asymmetric market behavior in terms of news sentiment impact. The back test results show that extreme positive sentiment generates robust and superior trading signals in all market conditions, and its risk-adjusted returns significantly outperform the S&P 500 index over the same time period

EFFETTI STIMOLANTI DA DANTROLENE SODICO SU ORGANI E MUSCOLATURA LISCIA.

The effects of sodium dantrolene (DaNa), a calcium antagonist specifically acting on skeletal muscles, were evaluated on the spontaneous contractions of ileum, uterine horns and longitudinal strips of esophageal smooth muscle, in vitro. DaNa (1.81 to 15 μg/ml) caused a reversible dose-related increase of the spontaneous contractions of the three organs. DaNa (15 μg/ml) caused a 60±3% increase of the ileum spontaneous tone, and caused a 57±3% increase in the frequency of the spontaneous contractions of the uterus. The stimulatory effect of DaNa on the uterine musculature was not antagonized by atropine, methysergide or indomethacin. In the esophagus the maximum increase of the spontaneous tone and contractions (65±2%) was due to 3.7 μg/ml perfusion of DaNa. This effect was antagonized by nifedipin

PPY THIN-LAYERS GROWN ONTO COPPER SALT REPLICA FOR SENSOR ARRAY FABRICATION

Investigations on polypyrrole, a pi-electron conjugated conducting polymer, aimed at the realization of amperometric biosensors are presented. The intent is to realize multi-electrode devices capable of transducing chemical changes into electrical signals. Thin patterned films of polypyrrole, which electrically interconnect Au microelectrodes, were grown from vapour phase by using a saline compound, CuCl2 + 2H2O, as oxidant. The salt has been obtained by a selective oxy-chloridization procedure of Cu thin layers on Au electrodized substrates. This technique has been used since it permits easier control, more than with electrochemical growth, of the polymer geometry which depends only on the salt geometry, hence on the Cu coating. Preliminary results obtained by means of cyclic voltammetry at a scan rate of 100 mV s-1, performed at different pHs (2, 7.8, 9, 12) on chemically grown PPy from CuCl2 + 2H2O salt, demonstrated that polymer conductivity increases in acid solution as the pH decreases