"This paper analyzes the interaction between income distribution, human capital accumulation and migration. It shows that when migration is not a certainty, a brain drain may increase average productivity and equality in the source economy even though average productivity is a positive function of past average levels of human capital in an economy. It is also shown how the temporary possibility...

The phenomenon “productivity paradox” indicates that investment in information technology is not positively associated with financial performance. However, there have been debates as to whether this phenomenon is actually valid or not. In this study, we explore the different roles of IT for increasing productivity in manufacturing and service industries using the data mining method called Weka ...

Object-oriented languages have recently become common, making register indirect jumps more important than ever. In objectoriented languages, virtual functions are heavily used because they improve programming productivity greatly. Virtual function calls usually consist of register indirect jumps, and consequently, programs written in objectoriented languages contain many register indirect jumps...

This is a short note to acknowledge the successful operation of a 140-cm drift liquid argon TPC built in the framework of the ICARUS experiment. We show few cosmic muon tracks crossing the whole drift volume from the wire planes to the cathode. Data were taken at drift "elds of 450 and 500 V/cm. ( 2000 Elsevier Science B.V. All rights reserved. 0168-9002/00/$ see front matter ( 2000 Elsevier Sc...

Europe and Japan are experiencing the aging of their populations. Aging implies a restructuring of the economy. Political issues which arise in an aging society include 1) a voting majority for the interests of the elderly, 2) a voting majority of females, 3) the domination of the decision power in corporate and similar ruling bodies, and 4) unemployment or a long wait for promotion for young...

This paper studies the following problem: given (1) a query and (2) a set of sensitive records, find the subset of records “accessed” by the query. The notion of a query accessing a single record is adopted from prior work. There are several scenarios where the number of sensitive records is large (in the millions.) The novel challenge addressed in this work is to develop a general-purpose solu...

Recent studies have supported a link between phylogenetic diversity and various ecological properties including ecosystem function. However, such studies typically assume that phylogenetic branches of equivalent length are more or less interchangeable. Here we suggest that there is a need to consider not only branch lengths but also their placement on the phylogeny. We demonstrate how two commo...

BACKGROUND Several studies have documented a significant association between vasomotor symptoms (VMS) and a decrement in health outcomes among postmenopausal women, but these studies have mostly focused on the US. The aim of the current study was to broaden this investigation by examining the burden of VMS symptoms in the European Union with respect to both humanistic and economic outcomes. M...

Neutrinos are one of the least known elementary particles. The detection of neutrinos is an extremely difficult task since they are affected only by weak sub-atomic force or gravity. Therefore large detectors are constructed to reveal neutrino’s properties. Among them the Liquid Argon Time Projection Chamber (LAr-TPC) detectors provide excellent imaging and particle identification ability for s...

Muon bremsstrahlung photons converted in front of the DELPHI main tracker (TPC) in dimuon events at LEP1 were studied in two photon kinematic ranges: 0.2 <Eγ ≤ 1 GeV and transverse momentum with respect to the parent muon pT < 40 MeV/c, and 1 <Eγ ≤ 10 GeV and pT < 80 MeV/c. A good agreement of the observed photon rate with predictions from QED for the muon inner bremsstrahlung was found, contra...