Due to safety concerns and the risks associated with an islanded system, current legislation has prohibited the islanded operation of distributed generation. However, operation of a temporary island may be a useful support to the main supply. In particular, in the event of an upstream supply outage, the temporary islanding operation of distributed generator (DG) can provide local supplies to cr...

introduction: the purpose of this in vitro study was to compare the coronal seal of four temporary filling materials, coltosol, zonalin, zamherir, and intermediate restorative material (irm) by the india ink dye penetration test. materials and methods: endodontic access preparations were prepared in 120 extracted intact human premolars. the teeth were randomly divided into six groups including ...

OBJECTIVE AND SUMMARY BACKGROUND DATA Because of the shortage of available donor organs, death rates from liver failure remain high. Therefore, several temporary liver-assisting therapies have been developed. This article reviews various approaches to temporary liver support as well as immunologic and metabolic developments toward a solution for this problem. METHODS A literature review was p...

The increase in equity prices over the 1990s has to a large degree been attributed to permanently higher productivity growth that is derived from the ‘new economy’ and related research and development (R&D) expenditures. This paper establishes a rational expectations model of technology innovations and equity prices, which shows that under plausible assumptions, productivity advances can only h...

BACKGROUND Temporary mechanical circulatory support device without sternotomy has been highly advocated for severe cardiogenic shock patient but little is known when coupled with amniotic stem cell therapy. CASE PRESENTATION This case reports the first dual therapy of temporary left ventricular extracorporeal device CentriMag with distal banding technique and human amniotic stem cell injectio...

Based on administrative data from the federal employment o¢ce in Germany, we apply matching techniques to estimate the stepping-stone function of temporary agency work for the unemployed, i.e. its short-run and long-run e¤ects on their future employment prospects.Our results show that unemployed workers who take up a job in the temporary work agency (TWA) industry are on average more likely tha...

In presenting evidence in favor of rational partisan cycles, where electoral victories by leftist parties are expected to create temporary expansions and electoral victories by rightist parties are expected to create temporary recessions, Alesina, Cohen, and Roubini (1999) rely upon autoregressive time series intervention regressions. These regressions, however, are not consistent with their mo...

The sharp increase in equity prices over the 1990s was widely attributed to permanently higher productivity growth derived from the New Economy. This paper establishes a rational expectations model of technology innovations and equity prices, which shows that under plausible assumptions, productivity advances can only have temporary effects on the fundamentals of equity prices. Using historical...

Temporary organizations are known to provide flexibility for industries that rely on them, but we know little about their implications for how work is accomplished and coordinated. In this paper, I propose that common portrayals of temporary organizations as ephemeral and unstable are inaccurate: Temporary organizations are in fact organized around structured role systems whose nuances are nego...