Excursie mentoraat

Op vrijdag 27 januari zijn de eerstejaars met het mentoraat naar de Tweede Kamer en het ministerie van VROM geweest

Bestuurskundige Estafette: Symposium BIL, vakgroep en NSOB

Op 14 november jl. organiseerden de Bestuurskundige Interfacultaire vereniging Leiden, de vakgroep Bestuurskunde Leiden en de Nederlandse School voor het Openbaar Bestuur Den Haag in het Academiegebouw te Leiden een Bestuurskundige Estafette ter gelegenheid van hun lustra. Tegen tienen begon het Academiegebouw vol te lopen met bestuurskunde-docenten en vooral bestuurskunde-studenten. Even na tienen opende de voorzitter van het ochtend-gedeelte, professor Rosenthal, de estafette en hij stelde aan ons de vijf prominente bestuurskundigen voor, die hun ideeën zouden gaan uiteenzetten over de recente ontwikkelingen binnen de bestuurskunde: de professoren Dror, Hesse, Kouzmin, Smolensky en Wamsley, allen lid van het 'International Board of Overseeers of the Netherland School for Public Administration'

Planck early results I : The Planck mission

Peer reviewe

Planck pre-launch status : The Planck mission

Peer reviewe

In-flight calibration and verification of the Planck-LFI instrument

In this paper we discuss the Planck-LFI in-flight calibration campaign. After a brief overview of the ground test campaigns, we describe in detail the calibration and performance verification (CPV) phase, carried out in space during and just after the cool-down of LFI. We discuss in detail the functionality verification, the tuning of the front-end and warm electronics, the preliminary performance assessment and the thermal susceptibility tests. The logic, sequence, goals and results of the in-flight tests are discussed. All the calibration activities were successfully carried out and the instrument response was comparable to the one observed on ground. For some channels the in-flight tuning activity allowed us to improve significantly the noise performance

Planck early results. I. The Planck mission

The European Space Agency’s Planck satellite was launched on 14 May 2009, and has been surveying the sky stably and continuously since 13 August 2009. Its performance is well in line with expectations, and it will continue to gather scientific data until the end of its cryogenic lifetime. We give an overview of the history of Planck in its first year of operations, and describe some of the key performance aspects of the satellite. This paper is part of a package submitted in conjunction with Planck’s Early Release Compact Source Catalogue, the first data product based on Planck to be released publicly. The package describes the scientific performance of the Planck payload, and presents results on a variety of astrophysical topics related to the sources included in the Catalogue, as well as selected topics on diffuse emission

Planck early results. I. The Planck mission

The European Space Agency’s Planck satellite was launched on 14 May 2009, and has been surveying the sky stably and continuously since 13 August 2009. Its performance is well in line with expectations, and it will continue to gather scientific data until the end of its cryogenic lifetime. We give an overview of the history of Planck in its first year of operations, and describe some of the key performance aspects of the satellite. This paper is part of a package submitted in conjunction with Planck’s Early Release Compact Source Catalogue, the first data product based on Planck to be released publicly. The package describes the scientific performance of the Planck payload, and presents results on a variety of astrophysical topics related to the sources included in the Catalogue, as well as selected topics on diffuse emission