Results 81 to 90 of about 4,042,448 (357)

Public Space: Activation v. De-Activation

New Instrumentalities, 2018
Historically, the great cities of the world have built public spaces that have often been used as venues for spectacle, and displays of power and status. These public venues are part of the identity of these cities and have an importance and influence far beyond their physical dimensions or geometric shapes.
Clifton C. Ellis, David J. Isern
openaire   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Review of recent observations of magnetic holes in the solar wind

Discover Space
Magnetic holes (MHs) are ubiquitous coherent structures within the solar wind, defined by localized depressions in the magnetic field. They are increasingly recognized as fundamental sites of energy conversion and particle energization, playing a crucial
C. Y. Li, Y. Wang, F. S. Wei, X. S. Feng, Z. K. Xu, Y. X. Lu, B. Y. Wang, P. B. Zuo, C. W. Jiang, X. J. Xu, Z. L. Zhou   +10 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

The disrupted jet stream and its influence on flight time during solar proton events

Scientific Reports
The long-chain effects of eruptive solar activities on Earth’s magnetosphere, ionosphere, and the mid-to-lower atmospheric circulation are an important theoretical research topic in the fields of space weather and atmospheric science.
Xiaoheng Xu, Yi Wang, Fengsi Wei, Xueshang Feng, Manhui Bo, Hongwu Tang, Diansheng Wang, Lei Bian, Boyi Wang, Pingbing Zuo, Chaowei Jiang, Xiaojun Xu, Zilu Zhou, Zeng Li, Peng Zou, Yun Li, Liang Zeng, Xiaoxing Zhu   +17 more
doaj   +1 more source

Mathematical expressions of the drag-based models for predicting the arrival time of coronal mass ejection and their development and evolutionary processes

Frontiers in Astronomy and Space Sciences
As one of the most violent solar activities, coronal mass ejections (CMEs) are eruptions of the large-scale magnetized plasma from the Sun’s upper atmosphere into interplanetary space.
Xinhua Zhao, Chenyu Shi, Chenyu Shi, Chenyu Shi, Xiao Liu, Xueshang Feng, Xueshang Feng, Yufen Zhou, Nanbin Xiang, Nanbin Xiang, Linhua Deng, Alexey Kuznetsov, Christian Möstl   +12 more
doaj   +1 more source

Impact of lower atmospheric scattering on ground-based optical thermospheric wind observations with spatially uneven airglow [PDF]

Atmospheric Measurement Techniques
Scattered airglow emissions in the lower atmosphere can bias ground-based interferometer observations of thermospheric winds, particularly when airglow brightness becomes spatially uneven due to auroras. During two geomagnetic storms with visible auroras
X. Wei, X. Wei, X. Wei, G. Jiang, G. Jiang, G. Jiang, Y. Zhu, Y. Zhu, Y. Zhu, J. Xu, J. Xu, W. Liu, W. Liu, T. Wang, T. Wang, T. Wang, G. Zhu, G. Zhu, W. Yuan, W. Yuan   +19 more
doaj   +1 more source

The discontinuous nature of chromospheric activity evolution

, 2010
Chromospheric activity has been thought to decay smoothly with time and, hence, to be a viable age indicator. Measurements in solar type stars in open clusters seem to point to a different conclusion: chromospheric activity undergoes a fast transition ...
A. Skumanich, A.D. Herzog, A.H. Vaughan, A.H. Vaughan, B. Nordstroem, B.A. Twarog, B.J. Anthony-Twarog, B.R. Durney, C. Saffe, C. Sneden, D. Cardini, D. Fawzy, D.B. Paulson, D.R. Soderblom, D.W. Latham, E. Böhm-Vitense, E.E. Mamajek, F. Middelkoop, G. Pace, G. Pace, G. Pace, G. Pace, H.J. Rocha-Pinto, H.J. Rocha-Pinto, J.-C. Mermilliod, J.C. Hall, L. Hartmann, L. Pasquini, M. Salaris, O.C. Wilson, O.C. Wilson, O.R. White, R. Lachaume, R.W. Noyes, S. Meibom, S.A. Barnes, S.A. Barnes, S.G. Sousa, T. Simon, W. Lyra   +39 more
core   +1 more source

IASM: Individualized activity space modeler

SoftwareX, 2018
Researchers from various disciplines have long been interested in analyzing and describing human mobility patterns. Activity space (AS), defined as an area encapsulating daily human mobility and activities, has been at the center of this interest. However, given the applied nature of research in this field and the complexity that advanced geographical ...
openaire   +4 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source