Results 101 to 110 of about 6,786 (289)

Long-time asymptotics of stochastic reaction systems

, 2019
We study the stochastic dynamics of a system of interacting species in a stochastic environment by means of a continuous-time Markov chain with transition rates depending on the state of the environment. Models of gene regulation in systems biology take this form.
Cappelletti, Daniele, Majumder, Abhishek Pal, Wiuf, Carsten   +2 more
openaire   +2 more sources

Redistributive land reforms, agricultural productivity, and structural change: New cross‐national evidence

American Journal of Agricultural Economics, EarlyView.
Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra, Abdulaziz B. Shifa, Lan Anh Tong, Mehmet A. Ulubasoglu   +3 more
wiley   +1 more source

The role of venture‐financed startups in innovation for US agriculture

American Journal of Agricultural Economics, EarlyView.
Abstract To evaluate the role played by startup companies in the innovation ecosystem of US agriculture, we compile a unique dataset of 6024 new entrants founded 1987–2019 that details their financing lifecycles, annual economic performance, and patenting activities.
Gregory D. Graff, Charles A. W. de Grazia, Nicholas E. Rada   +2 more
wiley   +1 more source

Late Cytomegalovirus Infections After Allogeneic Hematopoietic Cell Transplant

American Journal of Hematology, EarlyView.
ABSTRACT Graft versus host disease (GVHD) prophylaxis with posttransplant cyclophosphamide (ptCY) and cytomegalovirus (CMV) prophylaxis with letermovir have changed the clinical epidemiology of CMV infection. We studied the incidence, risk factors for, and outcomes of CMV infection after Day + 90 of allogeneic hematopoietic cell transplant (alloHCT ...
George L. Chen, Roland Bassett, Rohtesh S. Mehta, Betul Oran, Fareed Khawaja, Ella J. Ariza‐Heredia, Yosra Aljawai, Amanda Olson, May Daher, Portia Smallbone, Katayoun Rezvani, Partow Kebriaei, Uday Popat, Richard Champlin, Roy F. Chemaly, Elizabeth J. Shpall   +15 more
wiley   +1 more source

Intermediate asymptotics beyond homogeneity and self-similarity: long time behavior for $u_t=Deltaphi(u)$

, 2006
We investigate the long time asymptotics in L-+(1)( R) for solutions of general nonlinear diffusion equations u(t) = Delta phi(u). We describe, for the first time, the intermediate asymptotics for a very large class of non-homogeneous nonlinearities phi ...
DI FRANCESCO, MARCO, TOSCANI G., CARRILLO J. A   +2 more
core   +1 more source

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

Journal of Applied Polymer Science, EarlyView.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli, Jacob L. Pretko, Christopher W. Seay, Steven R. Lustig   +3 more
wiley   +1 more source

Long-time asymptotics of the Tzitzéica equation on the line

Mathematische Annalen
In this paper, the renowned Riemann-Hilbert method is employed to investigate the initial value problem of Tzitzéica equation on the line. Initially, our analysis focuses on elucidating the properties of two reflection coefficients, which are determined by the initial values.
Huang, Lin, Wang, Deng-Shan, Zhu, Xiaodong   +2 more
openaire   +2 more sources

Long‐Range Interactions in Topological Superconducting Systems: A Mini Review

Advanced Physics Research, EarlyView.
Long‐range interacting quantum systems are surveyed in this review, with an emphasis on the long‐range topological superconductor and its variants. Long‐range interactions decaying in a power‐law manner can lead to exotic phenomena that finds no analogue in short‐range regimes.
Juntong Ren, Haifeng Lü
wiley   +1 more source

Existence of weak solutions and long-time asymptotics for hydrodynamic model of swarming [PDF]

We consider a one-dimensional hydrodynamic model featuring nonlocal attraction-repulsion interactions and singular velocity alignment. We introduce a two-velocity reformulation and the corresponding energy-type inequality, in the spirit of the Bresch ...
Tse, Oliver; id_orcid, Chaudhuri, Nilasis, Choi, Young-Pil, Zatorska, Ewelina   +3 more
core   +2 more sources

Quantum Phenomena in Molecular and Biological Systems: A Decoherence‐Based Decision Framework With Falsifiable Predictions and a Failure‐Mode Taxonomy

Advanced Physics Research, EarlyView.
A physics‐grounded framework based on decoherence timescales (τ_dec vs τ_func), Markovian validity, and falsifiability criteria is applied across molecular systems to distinguish where quantum effects are necessary, marginal, or irrelevant. The analysis integrates quantum chemistry, biological quantum mechanisms, and quantum computing under a unified ...
Sarfaraz K. Niazi
wiley   +1 more source