Results 71 to 80 of about 31,130 (257)

Translational Remodeling of the Synaptic Proteome During Aging

open access: yesAging Cell, Volume 24, Issue 12, December 2025.
Aging induces a decoupling of protein regulation between the soma and the synapse. In particular, transcripts coding for ribosomal proteins decrease and their corresponding proteins increase in the synapse while the opposite happens in the soma. At the same time, synapse‐specific regulation of splicing takes place.
Cinzia Caterino   +10 more
wiley   +1 more source

Climate Emergency and Different Ways to Fail? The Fermi Paradox, the Simulation Hypothesis, Agency and Hope

open access: yesJournal for the Theory of Social Behaviour, Volume 55, Issue 4, December 2025.
ABSTRACT Humanity seems stuck on different ways to fail to meet the challenge posed by a declared climate emergency and manifest problems of ecological breakdown. Rather than reprise these failures, we use the Fermi Paradox and simulation hypothesis to make a simple point about agency. The argument unfolds in two sections.
Jamie Morgan
wiley   +1 more source

The Characteristics of (Normal) Pulsars [PDF]

open access: yes, 2002
Pulsars have now been studied for 34 years. We know of the existence of some 1500 objects at radio frequencies. Many of the characteristics of pulsars such as pulsar period, period derivative, spectrum, polarization, etc., have been catalogued for many ...
Wielebinski, Richard
core   +2 more sources

Birth and Evolution of Isolated Radio Pulsars

open access: yes, 2007
We investigate the birth and evolution of Galactic isolated radio pulsars. We begin by estimating their birth space velocity distribution from proper motion measurements of Brisken et al. (2002, 2003).
Bhattacharya D.   +38 more
core   +1 more source

New Arabic Records From Cairo on Supernovae 1181 and 1006

open access: yesAstronomische Nachrichten, Volume 346, Issue 9, November 2025.
ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer   +3 more
wiley   +1 more source

Recovery of Linear and Nonlinear Heart Rate Variability Metrics After Short‐Term Moderate versus Vigorous Intensity Exercise: A Cross‐Sectional Randomized Cross‐Over Study

open access: yesEuropean Journal of Sport Science, Volume 25, Issue 11, November 2025.
ABSTRACT The present study explored acute responses of heart rate (HR) variability (HRV) metrics, incorporating the nonlinear index alpha 1 of detrended fluctuation analysis (DFAa1) during passive recovery, providing information about correlation properties of HR time series during the regulation of recovery processes. Recreationally active female (n = 
Thomas Gronwald   +6 more
wiley   +1 more source

The Emission Geometry of Pulsars with Interpulses

open access: yesThe Astrophysical Journal
We present polarization profiles of 23 pulsars exhibiting interpulse (IP) emissions using the Five-hundred-meter Aperture Spherical Radio Telescope. By applying the rotating vector model (RVM), we measured the inclination and impact angles for 16 pulsars,
S. N. Sun   +3 more
doaj   +1 more source

Isolated Neutron Stars

open access: yesEPJ Web of Conferences, 2010
Several aspects related to astrophysics of isolated neutron stars are discussed. We start with an introduction into the “new zoo” of young isolated neutron stars.
Popov S.
doaj   +1 more source

Radio Pulsar Populations

open access: yes, 2019
Astro2020 white paper (submitted to the NASA 2020 astronomy and astrophysics decadal survey)
Lorimer, D. R.   +11 more
openaire   +2 more sources

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