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Main Actors (main + actor)

Distribution by Scientific Domains

Humanities and Social Sciences	60%

Selected Abstracts

Illegal Migration: What Can We Know And What Can We Explain?

INTERNATIONAL MIGRATION REVIEW, Issue 3 2004
The Case of Germany
Methodological problems in the study of illegal migration as defined in this article relate to questions of indicators for illegal migration, with special reference to Germany. It is argued and demonstrated that illegal immigrants are traceable, to some degree, in official statistics and that these can be analyzed for trends. In present-day migration processes, illegal immigration frequently is undertaken with the support of human smugglers. The analysis of the social organization of different forms of smuggling is the other main focus of the article. From a methodological point of view, the literature and public discourse lack adequate concepts for describing and explaining the social organization of human smuggling. The theory of organized crime as a main actor in human smuggling is criticized. The study borrows concepts from market and networks theory and applies these to different forms of human smuggling and illegal migration. The social and technological organization of smuggling is under constant pressure to adapt to new conditions. The dynamism for this change results mainly from an "arms race" between smugglers and law enforcement. Since control over territory and population are central elements of state sovereignty, the state cannot simply withdraw from this race. [source]

Pharmacokinetics, a main actor in a many-sided approach to severe 5-FU toxicity prediction

BRITISH JOURNAL OF CLINICAL PHARMACOLOGY, Issue 1 2009
Guido Bocci
No abstract is available for this article. [source]

The Regional Environment and a Firm's Innovative Performance: A Plea for a Multilevel Interactionist Approach

ECONOMIC GEOGRAPHY, Issue 2 2007
Sjoerd Beugelsdijk
Abstract: Following the recent critical debate on the role of the firm versus that of the region, this article contends that for a true test of the importance of the role of the region for a firm's innovative performance firm-specific heterogeneity needs to be minimized. Empirical studies have tended to deduce that the region matters from the macrophenomenon of regional clusters of economic activity. This deduction has led to an ecological fallacy, in which global phenomena or data aggregates that are actual representations of lower-level phenomena cannot be generalized to those lower levels. This article argues that if researchers want to analyze how a firm's environment affects its performance, they need to include firm-level strategy and structure. As an empirical illustration of this argument, the article presents a test,controlling for a number of firm-specific factors,of whether regional characteristics like the intensity of regional research and development (R&D), the number of R&D workers in the region, and the presence of a research institute are significantly related to a firm's ability to produce innovations. The findings suggest that the firm-specific drivers of innovation are more important than is a firm's regional environment. The article concludes that a renewed focus on the main actors and their interrelationships is needed, particularly those that involve the exchange of knowledge, to assess the extent to which such interactions are carried out within bounded territories. [source]

Managing the Bank-System Crisis in Coordinated Market Economies: Institutions and Blame Avoidance Strategies in Sweden and Japan

GOVERNANCE, Issue 1 2006
TORSTEN SVENSSON
Sweden and Japan represent two different positions regarding policymaking when faced with similar crises of the bank systems. Different institutional settings led the main actors to different paths of reactions in order to avoid blame. In the Japanese case, the very close relationship between private banks and the Ministry of Finance, in combination with the lesser degree of widespread perceptions of a system crisis, made it more urgent as well as possible to conceal the actual state of affairs for the politicians. Confronted with the threat of losing power over the financial administration to a new agency, the ministry postponed the reforms in order to conceal the deep financial problems. The institutional setting was different in Sweden. Deregulation had separated the government from the administration of banks. Among the public deteriorating economic conditions were easily connected to the banks. This brought about political unity. It was possible to put the blame on the banks and take the credit for the efforts to tidy up the mess without losing credibility. [source]

Movement gating of beta/gamma oscillations involved in the N30 somatosensory evoked potential

HUMAN BRAIN MAPPING, Issue 5 2009
Ana Maria Cebolla
Abstract Evoked potential modulation allows the study of dynamic brain processing. The mechanism of movement gating of the frontal N30 component of somatosensory evoked potentials (SEP) produced by the stimulation of the median nerve at wrist remains to be elucidated. At rest, a power enhancement and a significant phase-locking of the electroencephalographic (EEG) oscillation in the beta/gamma range (25,35 Hz) are related to the emergence of the N30. The latter was also perfectly identified in presence of pure phase-locking situation. Here, we investigated the contribution of these rhythmic activities to the specific gating of the N30 component during movement. We demonstrated that concomitant execution of finger movement of the stimulated hand impinges such temporal concentration of the ongoing beta/gamma EEG oscillations and abolishes the N30 component throughout their large topographical extent on the scalp. This also proves that the phase-locking phenomenon is one of the main actors for the N30 generation. These findings could be explained by the involvement of neuronal populations of the sensorimotor cortex and other related areas, which are unable to respond to the phasic sensory activation and to phase-lock their firing discharges to the external sensory input during the movement. This new insight into the contribution of phase-locked oscillation in the emergence of the N30 and in its gating behavior calls for a reappraisal of fundamental and clinical interpretation of the frontal N30 component. Hum Brain Mapp 2009. © 2008 Wiley-Liss, Inc. [source]