Results 21 to 30 of about 6,758 (216)

Unitarization Technics in Hadron Physics with Historical Remarks

open access: yes, 2020
We review a series of unitarization techniques that have been used during the last decades, many of them in connection with the advent and development of current algebra and later of Chiral Perturbation Theory.
Oller, J. A.
core   +1 more source

High-precision determination of the pion-nucleon $\sigma$-term from Roy-Steiner equations [PDF]

open access: yes, 2015
We present a determination of the pion-nucleon ($\pi N$) $\sigma$-term $\sigma_{\pi N}$ based on the Cheng-Dashen low-energy theorem (LET), taking advantage of the recent high-precision data from pionic atoms to pin down the $\pi N$ scattering lengths as
de Elvira, Jacobo Ruiz   +3 more
core   +2 more sources

Effectiveness of semantic-based treatment in persons with aphasia

open access: yesAnnals of Indian Academy of Neurology, 2020
Background: Semantic-based treatment is the salient approach used to remediate word retrieval deficits in persons with aphasia (PWAs). It is deemed to improve semantic attributes around the target word, thus aids in restoring word retrieval abilities ...
P Deepak, S P Goswami
doaj   +1 more source

Measurement of pi^0 photoproduction on the proton at MAMI C [PDF]

open access: yes, 2015
Differential cross sections for the gamma p -> pi^0 p reaction have been measured with the A2 tagged-photon facilities at the Mainz Microtron, MAMI C, up to the center-of-mass energy W=1.9 GeV.
A. Braghieri   +91 more
core   +2 more sources

Effective short-range interaction for spin-singlet P-wave nucleon-nucleon scattering [PDF]

open access: yes, 2010
Distorted-wave methods are used to remove the effects of one- and two-pion exchange up to order Q^3 from the empirical 1P1 phase shift. The one divergence that arises can be renormalised using an order-Q^2 counterterm which is provided by the (Weinberg ...
E. Epelbaum   +4 more
core   +2 more sources

Baseline Study on Species Occurrence and Quantitative Criteria for Protected Wetland Areas [PDF]

open access: yesGeo Data
This study analyzed species occurrences in 25 protected wetland areas (PWAs) in Korea based on detailed monitoring data collected between 2006 and 2024. A total of 6,539 species were recorded, comprising 2,081 vascular plants, 38 amphibians and reptiles,
Haeseon Shin, Sanghun Lee
doaj   +1 more source

Quality of communication life in people with aphasia: Implications for intervention

open access: yesAnnals of Indian Academy of Neurology, 2020
Background and Aims: The main goals were to determine the effectiveness of two commonly used communication-related Quality of Life (QoCL) measures, and the impact of aphasia-related factors on quality of life (QoL) and QoCL in persons with aphasia (PWAs).
Grama N Rangamani, Hannah M Judovsky
doaj   +1 more source

Bifunctional 1,2,4-Triazole/12-Tungstophosphoric Acid Composite Nanoparticles for Biodiesel Production

open access: yesNanomaterials, 2022
Here, a composite nanoparticle with an acid–base bifunctional structure has been reported for the transesterification of rapeseed oil to produce biodiesel. Triazole-PWA (PWA = 12-tungstophosphoric acid) composite materials with a hexahedral structure are
Gicheon Lee   +5 more
doaj   +1 more source

Energy-dependent partial-wave analysis of all antiproton-proton scattering data below 925 MeV/c [PDF]

open access: yes, 2012
We present a new energy-dependent partial-wave analysis of all antiproton-proton elastic and charge-exchange scattering data below 925 MeV/c antiproton laboratory momentum.
Timmermans, Rob G. E., Zhou, Daren
core   +2 more sources

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