Results 21 to 30 of about 3,449,757 (279)

New reports of sessile ciliates from Amsterdam, The Netherlands

open access: yesActa Biologica, 2021
The aim of this contribution is to present some ciliate reports from Amsterdam, the Netherlands. They are: Acineta nitocrae Dovgal, 1984, Metacineta micraster (Penard, 1914), Opercularia sp., Campanella sp., Platycola decumbens Ehrenberg, 1830 ...
Çağrı Yalçın   +2 more
doaj   +1 more source

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

Rapid Increase in the Prevalence of Metronidazole-Resistant Helicobacter pylori in the Netherlands

open access: yesEmerging Infectious Diseases, 1997
The prevalence of primary metronidazole resistance of Helicobacter pylori was studied in one Dutch hospital from 1993 to 1996 and in two additional Dutch hospitals in 1993 and 1996. All cultures of antral biopsy specimens yielding H.
E.J. van der Wouden   +6 more
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

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

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

Resisting disinfectants

open access: yesCommunications Medicine, 2022
van Dijk et al. discuss the potential for antimicrobial resistance as a consequence of disinfectant use. The authors advocate for the prudent use of disinfectants in all sectors of society.
Harrie F. G. van Dijk   +2 more
doaj   +1 more source

The dusty torus in the Circinus galaxy: a dense disk and the torus funnel [PDF]

open access: yes, 2013
Context. With infrared interferometry it is possible to resolve the nuclear dust distributions that are commonly associated with the dusty torus in active galactic nuclei (AGN).
K. Tristram   +21 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

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

Home - About - Disclaimer - Privacy