Results 41 to 50 of about 613 (180)

Life‐stage variation in Sable Shearwater (Ardenna carneipes) physiology assessed using proteomics

open access: yesIbis, EarlyView.
Life‐stage transitions in seabirds involve substantial shifts in physiological demands, yet the molecular mechanisms underpinning these changes remain poorly resolved. Here we applied untargeted data‐independent acquisition mass spectrometry (DIA‐MS) to characterize and compare the plasma proteomes of fledgling and adult Sable Shearwaters Ardenna ...
Alix M. de Jersey   +5 more
wiley   +1 more source

The FAST Galactic Plane Pulsar Snapshot Survey. IX. Timing Three Binary Pulsars with Wide Orbits and Low Orbital Eccentricities

open access: yesThe Astrophysical Journal
Current pulsar timing models face challenges when applied to binary pulsars with wide orbits and low orbital eccentricities. The conventional Damour–Deruelle ( DD ) model accurately characterizes the orbits of such systems, but it suffers from strong ...
Z. L. Yang   +13 more
doaj   +1 more source

Strong-Field Gravity Tests with the Double Pulsar

open access: yesPhysical Review X, 2021
Continued timing observations of the double pulsar PSR J0737–3039A/B, which consists of two active radio pulsars (A and B) that orbit each other with a period of 2.45 h in a mildly eccentric (e=0.088) binary system, have led to large improvements in the ...
M. Kramer   +29 more
doaj   +1 more source

Long‐term passive heat acclimation enhances maximal oxygen consumption via haematological and cardiac adaptation in endurance runners

open access: yesThe Journal of Physiology, EarlyView.
Abstract Figure Legend Endurance‐trained runners completed a 5‐week hot‐water‐immersion (HWI) intervention (≥40°C, 45 min, five sessions per week) and a training‐matched control period in a cross‐over design. HWI induced a 33 g increase in haemoglobin mass (Hbmass) and a 10 mL expansion in left‐ventricular end‐diastolic volume (LVEDV), resulting in a 2.
Elliott J. Jenkins   +7 more
wiley   +1 more source

Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing

open access: yesThe Astrophysical Journal
We present a new method to combine multimass equilibrium dynamical models and pulsar timing data to constrain the mass distribution and remnant populations of Milky Way globular clusters (GCs).
Peter J. Smith   +4 more
doaj   +1 more source

Ultrasound Biomicroscopic Evaluation of Postoperative Anterior Segment Changes in Canine Intumescent Cataracts

open access: yesVeterinary Ophthalmology, Volume 29, Issue 5, September 2026.
ABSTRACT Objective This study aimed to evaluate pre‐ and postoperative changes in the iridocorneal angle, ciliary cleft (CC), and ciliary muscle (CM) in canine eyes with intumescent cataracts using ultrasound biomicroscopy (UBM), with comparative reference to normal and non‐intumescent cataractous eyes.
Jiyi Hwang   +7 more
wiley   +1 more source

Search for an Isotropic Gravitational-wave Background with the Parkes Pulsar Timing Array

open access: yesThe Astrophysical Journal Letters, 2023
Pulsar timing arrays aim to detect nanohertz-frequency gravitational waves (GWs). A background of GWs modulates pulsar arrival times and manifests as a stochastic process, common to all pulsars, with a signature spatial correlation.
Daniel J. Reardon   +28 more
doaj   +1 more source

Mitochondria Dictate Progressive Versus Bimodal Aging of the Mammary Gland

open access: yesAging Cell, Volume 25, Issue 8, August 2026.
Breast cancer shows a bimodal age distribution with a peak at 45 and higher peak at 65. Using mice with different mitochondrial genomes, we show progressive and bimodal patterns of aging of the mammary gland with distinct pro‐tumorigenic age windows. This finding may shed light on the bimodal distribution in humans.
Edmund Charles Jenkins   +6 more
wiley   +1 more source

Pulse Profile Variability of PSR J1022+1001 in NANOGrav Data

open access: yesThe Astrophysical Journal
Pulse profile stability is a central assumption of standard pulsar timing methods. Thus, it is important for pulsar timing array experiments such as the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) to account for any pulse ...
William Fiore   +48 more
doaj   +1 more source

The Gravitational-wave Background Null Hypothesis: Characterizing Noise in Millisecond Pulsar Arrival Times with the Parkes Pulsar Timing Array

open access: yesThe Astrophysical Journal Letters, 2023
The noise in millisecond pulsar (MSP) timing data can include contributions from observing instruments, the interstellar medium, the solar wind, solar system ephemeris errors, and the pulsars themselves.
Daniel J. Reardon   +21 more
doaj   +1 more source

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