Results 171 to 180 of about 110,738 (286)

Physiology of nitrogen: A life or death matter

open access: yesExperimental Physiology, EarlyView.
Abstract With each breath, four out of every five molecules we inspire are nitrogen (N2), since this gas constitutes ∼80% of the atmospheric air that surrounds us. Despite its abundance and unlike molecular oxygen, N2 has traditionally held less appeal among physiologists given its lack of reactivity and corresponding inability to support combustion or
Damian M. Bailey   +2 more
wiley   +1 more source

Small scale turbulence in the Crab Nebula: Evidence of lower hybrid parametric instabilities driven by the pulsar wave [PDF]

open access: yes
Strong small scale turbulence is observed in the Crab Nebula from the temporal pulse broadening data. It is shown that the strong 30 Hz pulsar wave can parametrically excite instabilities near the lower hybrid frequency in the thermal plasma of the Crab ...
Lee, L. C.
core   +1 more source

Government Officials' Perceptions of Legitimate Governance Arrangements—Does a Representative Orientation Matter?

open access: yesGovernance, Volume 39, Issue 1, January 2026.
ABSTRACT Government officials are key actors in managing processes of institutional design and reorganization in increasingly emergent and diversified public structures. This study expands on a framework for assessing the predictive strength of key legitimacy dimensions on officials' governance preferences.
Stefan Sjöblom
wiley   +1 more source

Introduction: John Stone's Trajectory From Race Relations to Nationalism

open access: yes
Nations and Nationalism, EarlyView.
Daniele Conversi, Athena S. Leoussi
wiley   +1 more source

Stable Nitrogen Isotope Analysis of Amino Acids by Orbitrap Mass Spectrometry: Application for Extraterrestrial Samples

open access: yesRapid Communications in Mass Spectrometry, Volume 39, Issue 23, 15 December 2025.
ABSTRACT Background Obtaining isotopic data on soluble organic compounds, such as amino acids, in extraterrestrial samples is crucial for understanding their origins, prebiotic chemistry, and potential contamination. Conventional GC‐IRMS requires grams of material to measure isotopic compositions, limiting the analysis of low‐concentration organics in ...
O. M. McIntosh   +9 more
wiley   +1 more source

Multiband Nonthermal Radiative Properties of the Pulsar Wind Nebula CTB 87

open access: yesThe Astrophysical Journal
The pulsar wind nebula CTB 87 (G74.9+1.2) is one of the sources emitting γ -rays with energies higher than 10 TeV, as measured by the Very Energetic Radiation Imaging Telescope Array System telescope.
Yunlu Gong   +5 more
doaj   +1 more source

[ITAL]Hubble Space Telescope[/ITAL] Proper-Motion Measurements of the η Carinae Nebula [PDF]

open access: bronze, 2001
Jon A. Morse   +5 more
openalex   +1 more source

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