O Efeito da Sinalização de Qualidade no Contexto de Serviços

Signaling theory states that signals are firms’ actions that communicate information about the quality of a product. The main purpose of this research is to investigate the effect of signal quality in a service context, through the investigation of the signaling effects of price and responsiveness in a service context. Perceived behavior control, regarded as an individual's perception of the ability to perform a behavior, was proposed as a moderator between signaling variables and perceived quality. Two experimental studies with factorial and inter-subject designs were conducted in order to test the hypotheses formulated from the literature review. Results from both experiments show that signaling quality through price and responsiveness can affect perceived quality. The second experiment supports the hypothesis of perceived behavior control moderation between price as a signaling variable and perceived quality, but not between responsiveness and perceived quality. These results and their implications are discussed in the final section of the paper

The L 98-59 System: Three Transiting, Terrestrial-Size Planets Orbiting A Nearby M Dwarf

We report the Transiting Exoplanet Survey Satellite (TESS) discovery of three terrestrial-size planets transiting L 98-59 (TOI-175, TIC 307210830)—a bright M dwarf at a distance of 10.6 pc. Using the Gaia-measured distance and broadband photometry, we find that the host star is an M3 dwarf. Combined with the TESS transits from three sectors, the corresponding stellar parameters yield planet radii ranging from 0.8 R⊕ to 1.6 R⊕. All three planets have short orbital periods, ranging from 2.25 to 7.45 days with the outer pair just wide of a 2:1 period resonance. Diagnostic tests produced by the TESS Data Validation Report and the vetting package DAVE rule out common false-positive sources. These analyses, along with dedicated follow-up and the multiplicity of the system, lend confidence that the observed signals are caused by planets transiting L 98-59 and are not associated with other sources in the field. The L 98-59 system is interesting for a number of reasons: the host star is bright (V = 11.7 mag, K = 7.1 mag) and the planets are prime targets for further follow-up observations including precision radial-velocity mass measurements and future transit spectroscopy with the James Webb Space Telescope; the near-resonant configuration makes the system a laboratory to study planetary system dynamical evolution; and three planets of relatively similar size in the same system present an opportunity to study terrestrial planets where other variables (age, metallicity, etc.) can be held constant. L 98-59 will be observed in four more TESS sectors, which will provide a wealth of information on the three currently known planets and have the potential to reveal additional planets in the system

Swift trust and commitment: the missing links for humanitarian supply chain coordination?

Coordination among actors in a humanitarian relief supply chain decides whether a relief operation can be or successful or not. In humanitarian supply chains, due to the urgency and importance of the situation combined with scarce resources, actors have to coordinate and trust each other in order to achieve joint goals. This paper investigated empirically the role of swift trust as mediating variable for achieving supply chain coordination. Based on commitment-trust theory we explore enablers of swift-trust and how swift trust translates into coordination through commitment. Based on a path analytic model we test data from the National Disaster Management Authority of India. Our study is the first testing commitment-trust theory (CTT) in the humanitarian context, highlighting the importance of swift trust and commitment for much thought after coordination. Furthermore, the study shows that information sharing and behavioral uncertainty reduction act as enablers for swift trust. The study findings offer practical guidance and suggest that swift trust is a missing link for the success of humanitarian supply chains

Behavioral Barriers and Guidance Systems

Behavioral barriers and guidance systems have been employed at power facilities in an attempt to attract or to repel fish away from intake structures. Fishes respond to stimuli by either a preference or avoidance reaction. Broad categories of behavioral stimuli which have been employed at power plants include: electrical screens, air bubble curtains, illumination, acoustics and changes in current and velocity. The ways fish orient and migrate using various environmental cues still remain largely a mystery

Maryland Fish Passage Program: Anadromous Fish Restoration and Monitoring - Final Report

This report presents results of work conducted during spring 1990 under the Maryland Fish Passage Program to evaluate and enhance migratory populations in the Chesapeake Bay area. Task I consisted of sampling for migratory fish, including adult river herring (alewife Alosa pseudoharengus and blueback herring Alosa aestivalis), transport and stocking of adult river herring, and collection, sorting, and identification of ichthyoplankton. A total of 10,195 river herring was stocked in 13 separate releases at five major spawning rivers. Only 3% mortality was observed. Evidence of spawning by river herring (presence of either adults or eggs and larvae) was found at all sites except Stony Run on the Patapsco River. Task II consisted of releasing adult river herring fitted with radiotransmitters above blockages and tracking them to investigate migratory behavior of transported fish. A total of 38 fish was fitted with transmitters and released on eight separate occasions, then tracked from 14 April to 2 June. No difference was detected in the time spent above stream blockages for radiotagged blueback herring transported within their natal stream (12.8 days) and herring transported from another drainage (13.7 days). Radiotagged alewife transported within their natal stream above the stream blockage, spent less time above the dam (6.5 days) than radiotagged blueback herring

Maryland Fish Passage Program: Anadromous Fish Restoration and Monitoring - Final Report

Submitted to the Maryland Department of Natural Resources.This report presents results of work conducted during spring 1990 under the Maryland Fish Passage Program to evaluate and enhance migratory populations in the Chesapeake Bay area. Task I consisted of sampling for migratory fish, including adult river herring (alewife Alosa pseudoharengus and blueback herring Alosa aestivalis), transport and stocking of adult river herring, and collection, sorting, and identification of ichthyoplankton. A total of 10,195 river herring was stocked in 13 separate releases at five major spawning rivers. Only 3% mortality was observed. Evidence of spawning by river herring (presence of either adults or eggs and larvae) was found at all sites except Stony Run on the Patapsco River. Task II consisted of releasing adult river herring fitted with radiotransmitters above blockages and tracking them to investigate migratory behavior of transported fish. A total of 38 fish was fitted with transmitters and released on eight separate occasions, then tracked from 14 April to 2 June. No difference was detected in the time spent above stream blockages for radiotagged blueback herring transported within their natal stream (12.8 days) and herring transported from another drainage (13.7 days). Radiotagged alewife transported within their natal stream above the stream blockage, spent less time above the dam (6.5 days) than radiotagged blueback herring

Estuarine fish responses to strobe light, bubble curtains and strobe light/bubble-curtain combinations as influenced by water flow rate and flash frequencies

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