21 research outputs found
Ethylendiamine-Tetra-Aceticacid (EDTA) Dependent Pseudothrombocytopenia ¬Screening and Confirmatory Testing
A closer view of the radio-FIR correlation: disentangling the contributions of star formation and AGN activity
We extend the Unified Radio Catalog, a catalog of sources detected by various
(NVSS, FIRST, WENSS, GB6) radio surveys, and SDSS, to IR wavelengths by
matching it to the IRAS Point and Faint Source catalogs. By fitting each
NVSS-selected galaxy's NUV-NIR spectral energy distribution (SED) with stellar
population synthesis models we add to the catalog star formation rates, stellar
masses, and attenuations.We further add information about optical emission line
properties for NVSS-selected galaxies with available SDSS spectroscopy. Using
an NVSS 20cm (F_{1.4GHz} ge 2.5mJy) selected sample, matched to the SDSS
spectroscopic ("main" galaxy and quasar) catalogs and IRAS data (0.04<z le 0.2)
we perform an in depth analysis of the radio-FIR correlation for various types
of galaxies, separated into i) quasars, ii) star forming, iii) composite, iv)
Seyfert, v) LINER and vi) absorption line galaxies using the standard optical
spectroscopic diagnostic tools. We utilize SED-based star formation rates to
independently quantify the source of radio and FIR emission in our galaxies.
Our results show that Seyfert galaxies have FIR/radio ratios lower than, but
still within the scatter of, the canonical value due to an additional (likely
AGN) contribution to their radio continuum emission. Furthermore, IR-detected
absorption and LINER galaxies are on average strongly dominated by AGN activity
in both their FIR and radio emission; however their average FIR/radio ratio is
consistent with that expected for star forming galaxies. In summary, we find
that most AGN-containing galaxies in our NVSS-IRAS-SDSS sample have FIR/radio
flux ratios indistinguishable from those of the star-forming galaxies that
define the radio-FIR correlation. Thus, attempts to separate AGNs from
star-forming galaxies by their FIR/radio flux ratios alone can separate only a
small fraction of the AGNs, such as the radio-loud quasars.Comment: 22 pages, 12 figures, 2 tables. Accepted for publication in Ap
CHOICE OF PLANTS FOR ROOF GARDENS
Ograničena dubina supstrata, suša, vjetar, visoke temperature i slaba drenaža uvjeti su koje mogu podnijeti samo određene biljne vrste. Ovim radom se želi istaknuti one biljne vrste koje mogu uspijevati u specifičnim životnim uvjetima kakvi vladaju na krovu, a koje ujedno ispunjavaju kriterije održavanja te one estetske.A shallow growing medium, draught, wind, high temperatures and bad drainage are conditions in which only rare plant species can grow. The goal of this paper is to highlight and describe plant species that can survive and grow on roofs and match criteria of maintenance and aesthetics at the same time
Ethylendiamine-Tetra-Aceticacid (EDTA) Dependent Pseudothrombocytopenia ¬Screening and Confirmatory Testing
Enteritis caused by Campylobacter jejuni followed by acute motor axonal neuropathy: a case report
The faint radio sky: VLBA observations of the COSMOS field
We study the faint radio population using wide-field very long baseline
interferometry (VLBI) observations of 2865 known radio sources in the Cosmic
Evolution Survey (COSMOS) field. The main objective of the project was to
determine where active galactic nuclei (AGN) are present. The combination of
number of sources, sensitivity, angular resolution and area covered by this
project are unprecedented. We have detected 468 radio sources, expected to be
AGNs, with the Very Long Baseline Array (VLBA) at 1.4 GHz. This is, to date,
the largest sample assembled of VLBI detected sources in the sub-mJy regime.
The input sample was taken from previous observations with the Very Large Array
(VLA). We present the catalogue with additional multiwavelength information. We
find a detection fraction of 20%, considering only those sources from the input
catalogue which were in principle detectable with the VLBA (2361). As a
function of redshift, we see no evolution of the detection fraction over the
redshift range 0.5<z<3. In addition, we find that faint radio sources typically
have a greater fraction of their radio luminosity in a compact core: ~70% of
the sub-mJy sources detected with the VLBA have more than half of their total
radio luminosity in a VLBI-scale component, whereas this is true for only ~30%
of the sources that are brighter than 10 mJy. This suggests that fainter radio
sources differ intrinsically from brighter ones. Across our entire sample, we
find the predominant morphological classification of the host galaxies of the
VLBA detected sources to be early type (57%), although this varies with
redshift and at z>1.5 we find that spiral galaxies become the most prevalent
(48%). We demonstrate that wide-field VLBI observations, together with new
calibration methods such as multi-source self-calibration and mosaicing, result
in information which is difficult or impossible to obtain otherwise.Comment: 19 pages, 15 figures, 5 tables. Accepted for publication in A&
A Novel Genome-Editing Platform for Drug-Resistant Acinetobacter baumannii Reveals an AdeR-Unrelated Tigecycline Resistance Mechanism
The effect of naloxone on spinal reflexes to electrical and mechanical stimuli in the anaesthetized, spinalized rat.
1. Previous studies of the effects of naloxone on spinal neural responses have yielded disparate results. The reasons for this remain unclear but may relate to the diversity of animal preparations used, the route of administration of naloxone, the site and modality of the stimuli and the intensity of afferent input used. 2. A model requiring little preparative surgery compared to most other electrophysiological preparations has now been used to investigate the effects of naloxone (1, 10, 20 and 50 micrograms kg-1 I.V.) on single-motor-unit flexion reflex responses to alternating mechanical and electrical stimuli in spinalized rats, anaesthetized with alpha-chloralose. 3. Naloxone caused a dose-dependent facilitation of reflex responses to electrical stimuli delivered at intensities sufficient to activate either A fibres alone or A and C fibre afferents together. The component of the responses presumed to be due primarily to activation of C fibres was enhanced relatively more than the A fibre component. 4. Responses evoked during high-intensity mechanical pinch stimuli were not facilitated by equivalent doses of naloxone. The post-stimulus after-discharge was, however, enhanced by a similar percentage to the response to high-intensity electrical stimuli. 5. Lowering the intensity of the mechanical stimulus led to a diminished firing rate of the units during the stimulus itself. The stimulus was, nevertheless, still noxious. Naloxone was found to have a facilitatory effect on this smaller evoked response both during the pinch stimulus and during the period of after-discharge. The apparent lack of effect of naloxone during the higher intensity mechanical stimulus may be due to neurones in the polysynaptic pathway being activated at near-maximal firing rates. 6. We conclude that the ability of naloxone to facilitate spinal reflexes is not dependent on the nature of the stimulus, at least between electrical and mechanical stimuli, but is more a function of the intensity of the applied stimulus