Results 151 to 160 of about 1,559,486 (311)

Calculating and Using Second Order Accurate Solutions of Discrete Time Dynamic Equilibrium Models [PDF]

open access: yes
We describe an algorithm for calculating second order approximations to the solutions to nonlinear stochastic rational expectations models. The paper also explains methods for using such an approximate solution to generate forecasts, simulated time paths
Jinill Kim   +3 more
core  

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

open access: yesFEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer   +7 more
wiley   +1 more source

Constraining inflationary scenarios with braneworld models and second order cosmological perturbations

open access: yes, 2010
PhDInflationary cosmology is the leading explanation of the very early universe. Many different models of inflation have been constructed which fit current observational data.
Huston, Ian
core  

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

open access: yesFEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong   +3 more
wiley   +1 more source

Second-order consensus in multi-agent dynamical systems with sampled data

open access: yes, 2012
This paper studies second-order consensus in multi-agent dynamical systems with sampled position and velocity data. A distributed linear consensus protocol with second-order dynamics is designed, where both sampled position and velocity data are utilized.
Zhou Lei (519203), Wenwu Yu (11461026)
core  

Directed evolution of enzymes at the crossroads of tradition and innovation

open access: yesFEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova   +2 more
wiley   +1 more source

Nontrivial periodic solutions to second-order impulsive Hamiltonian systems

open access: yesElectronic Journal of Differential Equations, 2015
Based on variational methods and critical point theory, we study the existence of nontrivial periodic solutions to a class of second-order impulsive Hamiltonian systems.
John R. Graef   +2 more
doaj  

large second-order dynamical systems

open access: yes, 2007
Efficient computation of transfer function dominant poles of large second-order dynamical systems ...
Joost Rommes, Nelson Martins
core  

Small RNA pathways in mammalian oocytes

open access: yesFEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

Second-order Markov reward models driven by QBD processes

open access: yes, 2012
Second-order reward models are an important class of models for evaluating the performance of real-life systems in which the reward measure fluctuates according to some underlying noise. These models consist of a Markov chain driving the evolution of the
Ren, Yong (15523463)   +2 more
core  

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