Results 61 to 70 of about 37,456 (169)

Authentic Leadership—A Concept Analysis

open access: yesJournal of Advanced Nursing, Volume 81, Issue 4, Page 1775-1793, April 2025.
ABSTRACT Aim To report an analysis of the concept of authentic leadership. Design Concept analysis. Data Sources Data sources included core databases: CINAHL, PubMed, Embase, ProQuest, APA PsycINFO, ERIC, ABI/Inform and Tomlinson's Nursing Core Collection (2010).
Mariam Almutairi   +4 more
wiley   +1 more source

Agency costs of stakeholderism: Evidence from compensation contracting at AT&T

open access: yes
Journal of Applied Corporate Finance, EarlyView.
Stephen Bryan, Robert Nash, Ajay Patel
wiley   +1 more source

[Feiv] Emission in Ionized Nebulae [PDF]

open access: yesThe Astrophysical Journal, 2003
23 pages, 3 figures, accepted for publication in ApJ, a new table and several comments ...
openaire   +4 more sources

Spectroscopy and 3D imaging of the Crab nebula

open access: yes, 2004
Spectroscopy of the Crab nebula along different slit directions reveals the 3 dimensional structure of the optical nebula. On the basis of the linear radial expansion result first discovered by Trimble (1968), we make a 3D model of the optical emission ...
Alberto Carraminana   +7 more
core   +1 more source

PAH and H2emission in the Ring Nebula

open access: yesJournal of Physics: Conference Series, 2016
This paper presents the Spitzer IRS (Infra Red Spectrograph) detection of mid-infrared polycyclic aromatic hydrocarbon (PAH) emission features and H2 associated with dense knots in the ring of the "oxygen-rich" (C/O~0.6-0.8) planetary nebula (PN) NGC6720 (Ring Nebula). We explored a further three oxygen-rich extended PNe with similar dataset available.
Nick L. J. Cox   +8 more
openaire   +4 more sources

Fermi Detection of the Pulsar Wind Nebula HESS J1640-465

open access: yes, 2010
We present observations of HESS J1640-465 with the Fermi-LAT. The source is detected with high confidence as an emitter of high-energy gamma-rays.
Castro, D.   +6 more
core   +3 more sources

The Ultraviolet Emission Spectra of Planetary Nebulae [PDF]

open access: yesSymposium - International Astronomical Union, 1968
Calculations show that high-excitation planetaries emit about the same total intensity of collisionally excited radiation in the unobserved ultraviolet part of the spectrum as in the visible. This ultraviolet radiation emanates from a central zone where the electron temperature is high due to absorption of He II Ly-α photons. Intensities of lines which
openaire   +2 more sources

A BROADBAND EMISSION MODEL OF MAGNETAR WIND NEBULAE [PDF]

open access: yesThe Astrophysical Journal, 2016
Angular momentum loss by the plasma wind is considered as a universal feature of isolated neutron stars including magnetars. The wind nebulae powered by magnetars allow us to compare the wind properties and the spin-evolution of magnetars with those of rotation-powered pulsars (RPPs).
openaire   +4 more sources

Emission-Line Profiles in Planetary Nebulae [PDF]

open access: yesSymposium - International Astronomical Union, 1968
This research was undertaken with the idea of measuring as accurately as possible the internal-velocity distribution in planetary nebulae, in order to compare the observational measurements with hydrodynamical models of expanding nebulae. Much of the work was done in collaboration with J. S. Miller and D.W. Weedman.
openaire   +2 more sources

Outburst evolution, historic light curve and a flash-ionized nebula around the WZ Sge-type object PNV J03093063+2638031

open access: yes, 2015
We have monitored the 2014 superoutburst of the WZ Sge-type transient PNV J03093063+2638031 for more than four months, from V=11.0 maximum brightness down to V=18.4 mag, close to quiescence value, by obtaining BVRI photometry and low resolution fluxed ...
Cherini, G.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy