This paper examines whether or not immigration has a positive influence on the duration of unemployment, in a macroeconomic perspective. We analyse also whether the degree of labor market integration can influence migration. The integration of immigrants into the labor market is a recurrence theme in the work on the economic consequences of immigration. However, to our knowledge, no researchers...

This paper gives a selective review on the recent developments of nonparametric and semiparametric panel data models. We focus on the conventional panel data models with one-way error component structure, partially linear panel data models, varying coe¢ cient panel data models, nonparametric panel data models with multi-factor error structure, and nonseparable nonparametric panel data models. F...

We have extended the real-time tomographic reflection display of the Sonic Flashlight to a laser guidance system that aims to improve safety and accuracy of needle insertion, especially for deep procedures. This guidance system is fundamentally different from others currently available. Two low-intensity lasers are mounted on opposite sides of a needle aimed parallel to the needle. The needle i...

The PLOS ONE Staff Figure 6 is incorrect. Panels 6C and 6E in Figure 6 are duplicated. Panel 6E is incorrectly displayed as panel 6C. The authors apologize for this error and have provided a revised Figure 6 with the correct panel 6C, which can be viewed here. The raw blots for Figure 6 are also available with this correction. Copyright: ß 2014 The PLOS ONE Staff. This is an open-access article...

Krol (1996) reports estimates of the saving-investment correlation, based on panel regressions, that are much lower than commonly found in the literature. This note argues that this low estimate is not related to the panel estimation technique, as Krol claims, but largely to the inclusion of Luxembourg in the sample. Panel estimation only reduces the correlation’s estimate by about 0.12. Octobe...

In this paper, the impact of display on quality assessment is addressed. Subjective quality assessment experiments have been performed on both LCD and CRT displays. Two sets of still images and two sets of moving pictures have been assessed using either an ACR or a SAMVIQ protocol. Altogether, eight experiments have been led. Results are presented and discussed, some differences are pointed out...

The colorimetric characterization of two flat-panel LCD displays, an SGI 1600SW and an IBM prototype, was evaluated and compared to that of a flat-screen CRT display, the Sony GDM-F500. The results showed that both the SGI and the Sony displays could be characterized using the traditional gain-offset-gamma (GOG) model. Some improvement for the SGI display was gained by using three 1D LUTs in pl...