Alan Auerbach has given us a valuable paper loaded with new empirical research on the macroeconomics of fiscal policy. I agree with his basic conclusion that there is “little evidence that (the effects of discretionary fiscal policy) have provided a significant contribution to economic stabilization, if, in fact, they have worked in the right direction at all.” I, therefore, concur with his sup...

Car Logistics: The motivating case study is inspired by the operation of the sea port of Bremen, Germany. The port receives ships loaded with cars and has to organize their delivery. The operation of the system involves numerous entities (Ships, Cars, Gates, Landing Manager, Unloading Managers, Terminals, Treatment Areas, Delivery Managers, Delivery Gates, Trucks...), each responsible of specif...

We present a case study that exemplifies an extension of AWARE, a goal oriented requirement elicitation technique, for a collaborative document management system. The case concerns a multinational fast growing Management Consulting company. The system serves both marketing activities and actual work of the variegated consultant community. The system is loaded at “Zero-cost” by the consultants w...

Introduction If you toss two fair six-sided dice, you will get a number between 2 and 12. Although each die is fair, the sum is not: the probability of getting a 2 is 1 36 , while the probability of a 7 is 16 . Thus the question arises: Can unfair (or loaded) dice lead to a fair sum? The answer is no, as was shown by Honsberger [4], using elementary methods. A proof using generating functions i...

This paper presents a cache-aware Bloom Filter algorithm with improved cache behavior and a lower false positive rates compared to prior work. The algorithm relies on the power-of-two choice principle to provide a better distribution of set elements in a Blocked Bloom Filter. Instead of choosing a single block, we insert new elements into the least-loaded of two blocks to achieve a low false-po...

results upon the results from literature search, the researchers found that human is the main reservoir for this virus. there are four serotypes of virus. infection with one serotype cannot protect human against the other three serotypes. dengue fever begins suddenly with an onset of an influenza-like syndrome and sometimes progresses to severe form of the disease. treatment is supportive and i...

We consider a two-queue polling model with switch-over times and k-limited service (serve at most k i customers during one visit period to queue i) in each queue. The major benefit of the k-limited service discipline is that it-besides bounding the cycle time-effectuates prioritization by assigning different service limits to different queues. System performance is studied in the heavy-traffic ...

A Data warehouse has its own set of challenges for security. Organizational data warehouse are often very large systems. Once we have extracted and loaded the data from heterogeneous sources we need to integrated the data as it seems to similar but coming from the different sources. Validation is required at all the design phases of the development of the data warehouse. With the rapid developm...

The present study aims at examining vocal expression of emotion. Emotionally loaded speech material produced by actors was analyzed with reference to the accuracy of articulation as well as to the duration of syllables and segments. It was investigated whether the vocal expression of several emotions (anger, happiness, fear and sadness) differ from one another and from neutral speech with respe...