Results 21 to 30 of about 3,589,221 (367)

Complex organic molecules in protoplanetary disks [PDF]

open access: yes, 2013
Context. Protoplanetary disks are vital objects in star and planet formation, possessing all the material, gas and dust, which may form a planetary system orbiting the new star.
C. Walsh   +25 more
semanticscholar   +1 more source

Gastroenteritis in Sentinel General Practices, the Netherlands

open access: yesEmerging 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   +5 more
doaj   +1 more source

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

open access: yesRambam 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

Orbital parameters, masses and distance to β Centauri determined with the Sydney University Stellar Interferometer and high‐resolution spectroscopy [PDF]

open access: yes, 2004
The bright southern binary star β Centauri (HR 5267) has been observed with the Sydney University Stellar Interferometer (SUSI) and spectroscopically with the European Southern Observatory Coude Auxiliary Telescope and Swiss Euler telescope at La Silla ...
J. Davis   +21 more
semanticscholar   +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]

open access: yesMonthly 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   +72 more
semanticscholar   +1 more source

LOFAR Discovery of a 23.5 s Radio Pulsar [PDF]

open access: yesAstrophysical Journal, 2018
We present the discovery of PSR J0250+5854, a radio pulsar with a spin period of 23.5 s. This is the slowest-spinning radio pulsar known. PSR J0250+5854 was discovered by the LOFAR Tied-Array All-Sky Survey (LOTAAS), an all-northern-sky survey for ...
C. Tan   +60 more
semanticscholar   +1 more source

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

open access: yesEmerging 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   +5 more
doaj   +1 more source

Polycyclic aromatic hydrocarbon processing in interstellar shocks [PDF]

open access: yes, 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   +12 more
semanticscholar   +1 more source

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

open access: yesJournal 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   +6 more
doaj   +1 more source

Culture, Corona, Crisis: Best Practices and the Future of Dutch Museums

open access: yesJournal of Conservation and Museum Studies, 2021
The consequences of the coronavirus and the physical limitations it imposes on museums and their visitors force museums to rethink cultural identity and to approach the exhibition of material artworks differently.
Liselore N. M. Tissen
doaj   +1 more source

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