Results 71 to 80 of about 68,990 (208)

Strangeness production via electromagnetic probes: 40 years later

, 2003
A brief review of the associated strangeness electromagnetic production is presented. Very recent K+ Lambda photoproduction data on the proton from threshold up to E=2.6 GeV are interpreted within a chiral constituent quark formalism, which embodies all ...
Saghai, Bijan
core   +3 more sources

The role of identification in data‐driven policy iteration: A system theoretic study

International Journal of Robust and Nonlinear Control, EarlyView.
Abstract The goal of this article is to study fundamental mechanisms behind so‐called indirect and direct data‐driven control for unknown systems. Specifically, we consider policy iteration applied to the linear quadratic regulator problem. Two iterative procedures, where data collected from the system are repeatedly used to compute new estimates of ...
Bowen Song, Andrea Iannelli
wiley   +1 more source

Electromagnetic Excitation of Nucleon Resonances

, 2011
Recent progress on the extraction of electromagnetic properties of nucleon resonance excitation through pion photo- and electroproduction is reviewed. Cross section data measured at MAMI, ELSA, and CEBAF are analyzed and compared to the analysis of other
Drechsel, D., Kamalov, S. S., Tiator, L., Vanderhaeghen, M.   +3 more
core   +1 more source

Coherent $\eta$-photoproduction on $^4$He and $^{12}$C in the near-threshold region [PDF]

, 1997
Coherent $\eta$ meson photoproduction on $^4$He and $^{12}$C is considered in the near-threshold region. The elementary $\eta$ photoproduction operator includes contributions from the $S_{11}(1535)$ and $D_{13}(1520)$ resonances as well as $t$-channel ...
A. Fix, Adelseck, Alberico, Anghinolfi, Benmerrouche, Bennhold, Bennhold, Bianchi, Bjorken, Blomqvist, Breitmoser, Carrasco, Chew, Chumbalov, Dolinsky, Dumbrajs, Eldyshev, Eldyshev, Fix, Fix, H. Arenhövel, Kirchbach, Krusche, Krusche, Sauermann, Sherif, Söding, Tiator, Tiator, Williams   +29 more
core   +2 more sources

Design‐based implementation research for digitally enabled education reform: Teacher professional development in Tanzania

British Journal of Educational Technology, EarlyView.
Abstract Design‐based implementation research (DBIR) offers a promising approach for refining and theorising the implementation and scale‐up of education interventions. However, integrating technology into national education reforms in resource‐constrained contexts adds complexity, involving multiple government bodies, implementers and researchers with
Taskeen Adam, Sara Hennessy, Kristeen Chachage, Winston Massam, Calvin Swai, Fredrick Mtenzi, Jonathan Hegwa Paskali, Aneth Komba, Saalim Koomar, Fika Mwakabungu   +9 more
wiley   +1 more source

Multiscale expansions of difference equations in the small lattice spacing regime, and a vicinity and integrability test. I

, 2009
We propose an algorithmic procedure i) to study the ``distance'' between an integrable PDE and any discretization of it, in the small lattice spacing epsilon regime, and, at the same time, ii) to test the (asymptotic) integrability properties of such ...
, Ablowitz M J, Ablowitz M J, Aglietti U Santini P M, Aglietti U Santini P M Scimiterna C, Bakirova M I, Benney D J, Bourlioux A, Calogero F, Calogero F, Calogero F, Calogero F, Cole J D, Degasperis A, Degasperis A, Fokas A S, Kodama Y, Konopelchenko B, Korteweg D J, Levi D, Mikhailov A V, Paolo Maria Santini, Pelinovski D, Scimiterna C, Scimiterna C, Sokolov V V, Valiquette F, Winternitz P, Yamilov R I, Zakharov V E, Zakharov V E, Zakharov V E, Zakharov V E, Zakharov V E   +33 more
core   +1 more source

Chemilly – A79, zone D13

ADLFI. Archéologie de la France - Informations, 2021
Le projet d’aménagement de la RCEA a nécessité la réalisation d’un diagnostic archéologique sur une emprise de 92 576 m2, au niveau de l’échangeur de Chemilly, sur la rive gauche de l’Allier. La zone d’étude se situe à l’altitude moyenne de 221 m NGF, sur un terrain plat correspondant à des dépôts sablo-argileux de la Guèze (FxG) dans la partie ouest ...
Pasty, Jean-François, Pasty, Jean-François   +1 more
openaire   +1 more source

Bayesian inference for dynamic Q matrices and attribute trajectories in hidden Markov diagnostic classification models

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Hidden Markov diagnostic classification models capture how students' cognitive attributes evolve over time. This paper introduces a Bayesian Markov chain Monte Carlo algorithm for diagnostic classification models that jointly estimates time‐varying Q matrices, latent attributes, item parameters, attribute class proportions and transition ...
Chen‐Wei Liu
wiley   +1 more source

Identification and Validation of VEGFR2 Kinase as a Target of Voacangine by a Systematic Combination of DARTS and MSI

Biomolecules, 2020
Although natural products are an important source of drugs and drug leads, identification and validation of their target proteins have proven difficult.
Yonghyo Kim, Yutaka Sugihara, Tae Young Kim, Sung Min Cho, Jin Young Kim, Ju Yeon Lee, Jong Shin Yoo, Doona Song, Gyoonhee Han, Melinda Rezeli, Charlotte Welinder, Roger Appelqvist, György Marko-Varga, Ho Jeong Kwon   +13 more
doaj   +1 more source

Iterative Approximate Solutions of Kinetic Equations for Reversible Enzyme Reactions [PDF]

, 2013
We study kinetic models of reversible enzyme reactions and compare two techniques for analytic approximate solutions of the model. Analytic approximate solutions of non-linear reaction equations for reversible enzyme reactions are calculated using the ...
Khoshnaw, S.
core