Results 61 to 70 of about 34,115 (240)

SIR epidemics with long range infection in one dimension

, 2013
We study epidemic processes with immunization on very large 1-dimensional lattices, where at least some of the infections are non-local, with rates decaying as power laws p(x) ~ x^{-sigma-1} for large distances x.
Grassberger, Peter
core   +1 more source

Hamiltonian analysis of subcritical stochastic epidemic dynamics [PDF]

, 2017
We extend a technique of approximation of the long-term behavior of a supercritical stochastic epidemic model, using the WKB approximation and a Hamiltonian phase space, to the subcritical case.
Ackley, Sarah F., Bianco, Simone, Lietman, Thomas M., Porco, Travis C., Schwartz, Ira B., Worden, Lee   +5 more
core   +5 more sources

A Soft Matrix Microenvironment Promotes Laterally Spreading Tumors via Oxidative Phosphorylation‐Dependent Cell Adhesion

Advanced Science, EarlyView.
Laterally spreading tumors (LSTs) are precancerous colorectal lesions characterized by a flat morphology. This study reveals a mechanochemical pathway through which a soft matrix microenvironment diminishes spatial constraints in intestinal adenomas. This process promotes deficiencies in tight junction proteins, mediated by the mechanoreceptor ADORA2B ...
Jiamin Zhong, Jingyi Lu, Haopeng Li, Jun Zhong, Xiaobei Luo, Yiyi Hu, Xianfei Wang, Pengfei Wang, Yanning Zhang, Zhenjiang Wang, Qiuhua Lai, Zhenyu Chen, Wenting Mi, Wang Tin San‐to, Weize Li, Shuping Tan, Qihong Cheng, Ruijia Li, Yida Nie, Side Liu, Bing Huang, Zelong Han   +21 more
wiley   +1 more source

Response of Hydrodynamic Characteristics to Tillage-Induced Microtopography of Rill Erosion Processes under Heavy Rainfalls

Land
The occurrence and development of rill erosion depends on the hydraulic characteristics of water flow and underlying soil surface features. Our experiments include one-rainfall-intensity treatments (2.0 mm min−1) and various microtopographic levels based
Shuqin He, Jian Luo, Zicheng Zheng, Wenfeng Ding, Jigen Liu   +4 more
doaj   +1 more source

Bistability conditions between lasing and non-lasing states for vertical-cavity surface-emitting lasers with frequency-selective optical feedback [PDF]

, 2007
This paper gives analytical treatment and experimental details on on/off-bistability in vertical-cavity surface-emitting lasers with frequency-selective feedback by a grating.
Ackemann, Thorsten, Jentsch, K.F., Loiko, N.A., Naumenko, A. V.   +3 more
core   +1 more source

Robust and Thermally Stable Silicone Aerogels with Hyperconnected Network via Kinetically Optimized Hyperbranched Silane Precursors

Advanced Science, EarlyView.
Reactivity‐Programmed Assembly: A kinetic‐control strategy is reported for constructing hyperconnected silicone aerogels with a robust “thick‐neck” architecture. By exploiting the reactivity disparity of precursors, flexible segments are uniformly embedded within a rigid skeleton.
Aoqing Yan, Guixiang Li, Yaolan Li, Yi Luo, Bin Liu, Zhe Su, Hao Tian, Wei Shi, Bo Niu, Donghui Long   +9 more
wiley   +1 more source

Characterization and mechanism of resuspension events induced by internal tides at the toe of Shenhu canyon

Applied Ocean Research
Understanding sediment resuspension in deep-sea (primarily deeper than 1000 m) environments is critical for environmental impact assessments and engineering planning.
Cong Hu, Hui Wang, Chunsheng Ji, Xuezhi Feng, Zhaoyang Tian, Yonggang Jia   +5 more
doaj   +1 more source

Review of Zeeman Effect Observations of Regions of Star Formation

Frontiers in Astronomy and Space Sciences, 2019
The Zeeman effect is the only observational technique available to measure directly the strength of magnetic fields in regions of star formation. This chapter reviews the physics of the Zeeman effect and its practical use in both extended gas and in ...
Richard M. Crutcher, Athol J. Kemball
doaj   +1 more source

On the High Winds in the Tianshan Grand Canyon in Northwest China: General Features, Synoptic Conditions, and Mesoscale Structures

Frontiers in Earth Science, 2022
This work studies the characteristics of high winds in the Tianshan Grand Canyon (TGC), Northwest China by using surface wind observations at six automatic weather stations during 2017–2018.
Tao Xi, Xin Xu, Peng Wei, Yuan Wang, Jie Ming, Shushi Zhang, Jinfeng Ding, Abuduwaili Abulikemu   +7 more
doaj   +1 more source

Structure and dynamics of the sudden acceleration of Kuroshio off Cape Shionomisaki [PDF]

, 2013
A sudden acceleration of the Kuroshio jet appears off Cape Shionomisaki in the high-resolution (horizontal resolution of 1/36°) JCOPE 2 ocean reanalysis data. Using this dataset, we investigated the structure of the Kuroshio acceleration. The increase in
MIYAMA, Toru, MIYAZAWA, Yasumasa, 宮澤, 泰正, 美山, 透   +3 more
core   +1 more source