Results 51 to 60 of about 613 (180)

Research on establishing a joint time-scale of pulsar time and atomic time based on a wavelet analysis method

Monthly Notices of the Royal Astronomical Society
ABSTRACT Pulsar time has different physical mechanisms from atomic time, and these two time-scales are complementary in terms of stability performance. The joint timekeeping of pulsar and atomic time is currently an important application direction.
Xingzhi Zhu, Zhehao Zhang, Chengshi Zhao, Bian Li, Minglei Tong, Yuping Gao, Tinggao Yang   +6 more
openaire   +1 more source

Time delay estimation method of X-ray pulsar observed profile based on the optimal frequency band

Acta Physica Sinica, 2016
In order to improve the time delay estimation accuracy of the observed profile in the X-ray pulsar based navigation, the spectral characteristics of the observed profile of X-ray pulsar and the drawback of the classical Taylor fast Fourier transform (FFT) time delay estimation method are analyzed. It is found that when estimating the time delay, we can
null Fang Hai-Yan, null Liu Bing, null Li Xiao-Ping, null Sun Hai-Feng, null Xue Meng-Fan, null Shen Li-Rong, null Zhu Jin-Peng   +6 more
openaire   +1 more source

Comparison of prostatic urethral lift (PUL) versus water vapour thermal therapy (WVTT): A focus on drug‐free status and unplanned admissions

BJUI Compass, Volume 7, Issue 7, July 2026.
Abstract Objectives To compare prostatic urethral lift (PUL) and water vapour thermal therapy (WVTT) for benign prostatic hyperplasia (BPH) in a real‐world setting, this study compares clinical management outcomes that are less thoroughly documented in current literature—such as drug‐free status, complications and post‐procedure readmission rates ...
Athena Y. H. Lee, Brian W. H. Siu, Kelly H. Y. Tsang, Chi Ho Leung, Jeremy M. H. Ho, Yvonne Y. Y. Chan, Jeremy Y. C. Teoh, Peter K. F. Chiu, Ka Lun Lo, Chi Fai Ng   +9 more
wiley   +1 more source

An Improved Wiener Filtration Method for Constructing the Ensemble Pulsar Timescale

The Astrophysical Journal
An improved Wiener filtration (WF) method for constructing the ensemble pulsar timescale (EPT) is proposed to solve the existing problems in the WF algorithm.
Zhehao Zhang, Minglei Tong, Tinggao Yang
doaj   +1 more source

The Protective Mechanism of Continuous Theta Burst Stimulation in the Acute Phase of Stroke Through Modulation of the Calcineurin/AKT/FOXO1 Signaling Pathway

CNS Neuroscience &Therapeutics, Volume 32, Issue 7, July 2026.
During the acute phase of stroke, excitotoxicity‐induced high intracellular calcium levels trigger neuronal damage, with calcineurin playing a key role in the peri‐infarct region. Continuous transcranial magnetic stimulation (cTBS) reduces calcineurin expression, activates the AKT/FOXO1 pathway, and decreases FOXO1 binding at the FasL promoter ...
Pengkun Yang, Haocheng Qin, Bao Zhou, Shenyi Kuang, Meixi Liu, Yi Wu, Peng Yuan, Kewei Yu   +7 more
wiley   +1 more source

Methods for calibrating a cesium atomic clock using a pulsar time-scale

Monthly Notices of the Royal Astronomical Society
ABSTRACT Some millisecond pulsars exhibit extremely high rotational stability, which can form a pulsar-based time-scale. We employed a post-correction method to evaluate the feasibility of the pulsar time-scale (PT) as a time reference to calibrate the frequency of cesium clocks getting more accurate time signals.
Linlin Wang, Zhehao Zhang, Minglei Tong
openaire   +1 more source

A living biobank of sarcoma patient‐derived cell cultures reveals multi‐omic and functional insights that capture disease heterogeneity

Clinical and Translational Medicine, Volume 16, Issue 7, July 2026.
Preclinical models for sarcoma that preserve tumour biology are urgently needed to advance mechanistic understanding and functional precision oncology. 29 early‐passage patient‐derived sarcoma cell (PDC) cultures from 19 patients, representing 11 sarcoma subtypes were established and extensively characterized.
Stefanie Gijsels, Suzanne Fischer, David Creytens, Sándor Dedeyne, Felix De Vuyst, Cláudio Pinheiro, Fleur Cordier, Sarah‐Lee Bekaert, Nadine Van Roy, Kaat Durinck, Jarne Pauwels, Kris Gevaert, Pieter Mestdagh, Jo Vandesompele, Pekka Rappu, Jyrki Heino, An Hendrix, Gabrielle H. van Ramshorst, Gwen Sys, Olivier De Wever   +19 more
wiley   +1 more source

Noisy Timing Behavior is a Feature of Central Compact Object Pulsars

The Astrophysical Journal
We present a timing study of the three known central compact object (CCO) pulsars, isolated cooling neutron stars in supernova remnants, using observations from Chandra, XMM-Newton, and NICER spanning two decades.
K. I. Perez, E. V. Gotthelf, J. P. Halpern   +2 more
doaj   +1 more source

Investigations on the Role of Support and Synthesis Procedure for the Rux–Cuy/CNT‐Catalysed Hydrogenolysis of Glycerol to 1,2‐Propanediol

ChemistryOpen, Volume 15, Issue 7, July 2026.
Sophisticated carbon supports like single‐ and multiwall carbon nanotubes as well as Globugraphite were used for the synthesis of bimetallic Ru–Cu catalysts, which were tested in a multi batch reactor setup for the chemical hydrogenolysis of glycerol to 1,2‐propanediol (1,2‐PDO) at 220 °C under 30 bar of hydrogen pressure in aqueous solution. Tailoring
Dominique Lumpp, Samrin Shaikh, Jan‐Dominik Krueger, Fabian Riebesehl, Christiane Roller, Charlotte Ruhmlieb, Baldur Schroeter, Carina Hedrich, Martin Ritter, Irina Smirnova, Bodo Fiedler, Jakob Albert   +11 more
wiley   +1 more source

Pulsar Cyclic Spectroscopy in the Partial-deconvolution Regime: Benefits and Limitations

The Astrophysical Journal
We explore possible advantages of cyclic spectroscopy for observations of pulsars in instances where full cyclic deconvolution is not possible. We compute cyclic merits and full-deconvolution regime boundaries for pulsars observed by NANOGrav and discuss
Jacob E. Turner, Timothy Dolch, Paul B. Demorest, Ryan S. Lynch, Daniel R. Stinebring, Cody Jessup, Nathaniel Jones, Christopher Scheithauer   +7 more
doaj   +1 more source