Results 21 to 30 of about 176,140,557 (292)

New Evidence on Learning Trajectories in a Low-Income Setting [PDF]

open access: yesInternational Journal of Educational Development, 2021
Using a unique longitudinal dataset collected from primary school students in Pakistan, we document four new facts about learning in low-income countries. First, children's test scores increase by 1.19 SD between Grades 3 and 6. Second, going to school is associated with greater learning.
Natalie Bau, Jishnu Das, Andres Yi Chang
openaire   +3 more sources

ON BEHAVIOR OF TRAJECTORIES OF WEAK SOLUTIONS OF N-DIMENSIONAL STOCHASTIC NAVIER-STOKES EQUATIONS

open access: yesРоссийский технологический журнал, 2017
The research paper study a behavior of trajectories of weak solutions of n-dimensional (n≥2) Navier-Stokes equations, perturbed by an additive white noise. It is shown that at any given moment t trajectories in its subsequent motion along the phase space
D. A. Khrychev
doaj   +1 more source

CONTROL OF TRAJECTORIES SET BY THE LINEAR DYNAMIC SYSTEMS WITH DISCRETE ARGUMENT

open access: yesМіжнародний науково-технічний журнал "Проблеми керування та інформатики", 2007
The mathematical problem of construction of general solutions of problem of terminal control for the set of initial perturbations is considered. The condition of existence of general solution of this problem for the linear dynamic systems with discrete ...
V.T. Matvienko
doaj   +1 more source

Probing a Set of Trajectories to Maximize Captured Information

open access: yesCoRR, 2020
We study a trajectory analysis problem we call the Trajectory Capture Problem (TCP), in which, for a given input set ${\cal T}$ of trajectories in the plane, and an integer $k\geq 2$, we seek to compute a set of $k$ points (``portals'') to maximize the total weight of all subtrajectories of ${\cal T}$ between pairs of portals.
Sándor P. Fekete   +6 more
openaire   +6 more sources

Tracking properties of trajectories on random attracting Sets [PDF]

open access: yesStochastic Analysis and Applications, 1999
The theory of random attracting sets highlights interesting properties of the asymptotic behaviour of some stochastic differential equations. In this paper some results on the relation between the dynamics on random attractors and stochastic inertial manifolds, and the dynamics in the associated random dynamical system are studied.
Caraballo Garrido, Tomás   +1 more
openaire   +2 more sources

On quasistability radius of a vector trajectorial problem with a principle of optimality generalizing Pareto and lexicographic principles [PDF]

open access: yesComputer Science Journal of Moldova, 2005
A multicriterion linear combinatorial problem with a parametric principle of optimality is considered. This principle is defined by a partitioning of partial criteria onto Pareto preference relation groups within each group and the lexicographic ...
Sergey E. Bukhtoyarov   +1 more
doaj  

Experience-based SEEG planning: from retrospective data to automated electrode trajectories suggestions

open access: yesHealthcare Technology Letters, 2018
StereoElectroEncephaloGraphy (SEEG) is a minimally invasive technique that consists of the insertion of multiple intracranial electrodes to precisely identify the epileptogenic focus.
Davide Scorza   +10 more
doaj   +1 more source

On the compactness of the set of L-2 trajectories of the control system

open access: yesNonlinear Analysis, 2018
In this paper, the compactness of the set of L2 trajectories of the control system described by the Urysohn-type integral equation is studied. The control functions are chosen from the closed ball of the space L2 with radius r and centered at the origin.
Nesir Huseyin, Anar Huseyin
doaj   +1 more source

Further Operations (Complement, Intersection, Union) for IndetermSoft Set, IndetermHyperSoft Set, and TreeSoft Set and their Applications [PDF]

open access: yes
In this paper, efforts are intensified as much as possible to explicitly and clearly give the definitions as regards the operations involving the complement, intersection as well as the union for IndetermSoft Set, IndetermHyperSoft Set, and Tree Soft Set
Adesina, Adebisi Sunday
core   +1 more source

Preliminary design of multiple gravity-assist trajectories [PDF]

open access: yes, 2006
In this paper the preliminary design of multiple gravity-assist trajectories is formulated as a global optimization problem. An analysis of the structure of the solution space reveals a strong multimodality, which is strictly dependent on the complexity ...
Vasile, Massimiliano   +2 more
core   +4 more sources

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