Results 21 to 30 of about 3,576,628 (247)

Polycyclic aromatic hydrocarbon processing in interstellar shocks [PDF]

, 2009
Context. PAHs appear to be an ubiquitous interstellar dust component but the effects of shocks waves upon them have never been fully investigated. Aims. We study the effects of energetic (≈0.01−1 keV) ion (H, He and C) and electron collisions on PAHs in ...
E. Micelotta, A. Jones, A. Leiden, Leiden University, The Netherlands., I. D. Spatiale, Universite de Paris Sud, Cnrs, Orsay, France., N. R. Center, M. Field, Usa   +12 more
semanticscholar   +1 more source

Kinematics around the B335 protostar down to au scales [PDF]

Astronomy & Astrophysics, 2019
Context. The relationship between outflow launching and the formation of accretion disks around young stellar objects is still not entirely understood, which is why spectrally and spatially resolved observations are needed.
P. Bjerkeli, J. Ramsey, D. Harsono, H. Calcutt, L. Kristensen, M. Wiel, J. Jørgensen, S. Muller, M. A. D. O. Space, Earth, Environment, C. U. Technology, O. Observatory, Sweden., D. O. Astronomy, U. Virginia, U.S.A., L. Observatory, Leiden University, The Netherlands., Niels Bohr Institute, Centre for Star, Planet Formation, U. Copenhagen, Denmark., Astron, The Netherlands Institute for Radio Astronomy   +26 more
semanticscholar   +1 more source

Gastroenteritis in Sentinel General Practices, the Netherlands

Emerging Infectious Diseases, 2001
From 1996 to 1999, the incidence of gastroenteritis in general practices and the role of a broad range of pathogens in the Netherlands were studied. All patients with gastroenteritis who had visited a general practitioner were reported.
Matty A.S. de Wit, Marion P.G. Koopmans, Laetitia M. Kortbeek, Nan J. van Leeuwen, AAD I.M. Bartelds, Yvonne T.H.P. van Duynhoven   +5 more
doaj   +1 more source

Jewish Hospitals in 20th Century Amsterdam: A Tale of Growth, Change, and Decline

Rambam Maimonides Medical Journal, 2023
Major improvements in medical diagnostics and treatments in Dutch hospital care during the second half of the 19th century led to a shift from a nearly exclusive focus on indigent patients to an increasing proportion of hospital beds dedicated to paying ...
Jack Y. Vanderhoek
doaj   +1 more source

The first power spectrum limit on the 21-cm signal of neutral hydrogen during the Cosmic Dawn at z = 20–25 from LOFAR [PDF]

Monthly notices of the Royal Astronomical Society, 2018
Observations of the redshifted 21-cm hyperfine line of neutral hydrogen from early phases of the Universe such as Cosmic Dawn and the Epoch of Reionization promise to open a new window onto the early formation of stars and galaxies.
B. Gehlot, Florent Mertens, L. Koopmans, M. Brentjens, S. Zaroubi, B. Ciardi, A. Ghosh, M. Hatef, I. Iliev, V. Jelić, R. Kooistra, F. Krause, M. Mitra, M. Mevius, G. Mellema, A. Offringa, V. Pandey, M. Silva, J. Schaye, A. M. Sardarabadi, H. Vedantham, S. Y. K. A. Institute, U. Groningen, PO Box 800, 9. Groningen, The Netherlands., Astron, 2. POBox, 7. Dwingeloo, The Netherlands., D. Sciences, The Open University of Israel, 1. U. Road, PO Box 808, Ra'anana 4353701, Israel, Max Planck Institute for Astrophysics, 1. Karl-Schwarzschild-Strasse, 85748 Garching, Germany, D. O. Physics, U. Cape, Cape Town 7535, S. Africa, Ska South Africa, 3rd Floor, The Park, Park Road, Pinelands, 7405 South Africa, Astronomy Centre, Astronomy, Pevensey Building, U. Sussex, Brighton BN1 9QH, U.K., Rudjer Bovskovi'c Institute, 54 Bijenivckacesta, 10000 Zagreb, Croatia., U. London, Gower Place, London WC1E 6BT, D. O. Astronomy, O. K. C. -. Physics, Albanova, S. University, S. Stockholm, Sweden, L. Observatory, Leiden University, P. B. 9513, 2. Leiden   +72 more
semanticscholar   +1 more source

The mass of the neutron star in Vela X-1 and tidally induced non-radial oscillations in GP Vel [PDF]

, 2003
We report new radial velocity observations of GP Vel / HD 77581, the optical companion to the eclipsing X-ray pulsar Vela X-1. Using data spanning more than two complete orbits of the system, we detect evidence for tidally induced non- radial ...
H. Quaintrell, A. J. Norton, Trinanjan Ash, P. Roche, B. Willems, T. Bedding, I. Baldry, R. G. W. T. O. University, Uk, Kildrummy Technologies Ltd, University of Glamorgan, U. Leicester, U. Sydney, Australia, J. University, Usa, Anton Pannekoek Institute, The Netherlands   +17 more
semanticscholar   +1 more source

Pertussis in the Netherlands: an Outbreak Despite High Levels of Immunization with Whole-Cell Vaccine

Emerging Infectious Diseases, 1997
In 1996, a sudden increase in pertussis incidence was reported in the Netherlands (2.1 per 100,000 in 1995, 18 per 100,000 in 1996). Although not all potential surveillance artifacts could be excluded, it is highly probable that the data reflect a true ...
H.E. de Melker, M.A.E. Conyn-van Spaendonck, H.C. Rümke, J.K. van Wijngaarden, F.R. Mooi, J.F.P. Schellekens   +5 more
doaj   +1 more source

Electron source concept for single-shot sub-100 fs electron diffraction in the 100 keV range [PDF]

, 2007
We present a method for producing sub-100 fs electron bunches that are suitable for single-shot ultrafast electron diffraction experiments in the 100 keV energy range.
T. V. Oudheusden, E. D. Jong, B. Siwick, S. Geer, W. O. Root, O. U. D. O. Physics, E. U. O. Technology, Eindhoven, The Netherlands, D. Physics, Chemistry, M. University, Montreal, Canada.   +13 more
semanticscholar   +1 more source

The impact of patent expiry on drug prices: insights from the Dutch market

Journal of Market Access & Health Policy, 2021
Background: Currently literature on the impact of patent expiry on drug prices is lacking. Objective: To determine the impact of patent expiration and generic entry on drug prices in the Netherlands.
Simon van der Schans, Gert T. Vondeling, Qi Cao, Simon van der Pol, Sipke Visser, Maarten J. Postma, Mark H. Rozenbaum   +6 more
doaj   +1 more source

Predicting low-frequency radio fluxes of known extrasolar planets [PDF]

, 2007
Context: Close-in giant extrasolar planets (``Hot Jupiters'') are believed to be strong emitters in the decametric radio range. Aims: We present the expected characteristics of the low-frequency magnetospheric radio emission of all currently known ...
J. Grießmeier, P. Zarka, H. S. Lesia, O. Paris, Meudon, France., Astronomical InstituteAnton Pannekoek'', Amsterdam, The Netherlands.   +8 more
semanticscholar   +1 more source