Results 1 to 10 of about 2,375,747 (287)

$\gamma\gamma \to \gamma \gamma$ scattering in ultrarelativistic UPC [PDF]

open access: yesProceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017), 2017
Comment: 5 pages, 3 figures, talk was given by Antoni Szczurek at European Physical Society conference on High Energy Physics (EPS-HEP 2017), Venice, Italy. Two references were added.
Szczurek, Antoni   +1 more
openaire   +3 more sources

Testing non-commutative QED $\gamma\gamma\gamma$ and $\gamma\gamma\gamma\gamma$ couplings at LHC [PDF]

open access: yesThe European Physical Journal C, 2004
In this work, we investigate the sensitivity of the process p + p --> q + q --> j + j + gamma + gamma at LHC for the photonic 3- and 4- point functions that appear in non commutative QED. We show that this process serves to study the behavior of the space-space as well as of the space-time non commutativity.
S. M. Lietti, C. A. de S. Pires
openaire   +3 more sources

Elevación insuficiente de TSH antes de la terapia con I131 en paciente con carcinoma diferenciado de tiroides metastásico

open access: yesRevista de la Facultad de Ciencias Médicas de Córdoba, 2023
Las guías sugieren un nivel de estimulación de tirotrofina (TSH) ≥30 mUI/l para la administración de yodo 131 (I131) en pacientes con carcinoma diferenciado de tiroides (CDT).
Luis Agustín Ramírez Stieben   +4 more
doaj   +1 more source

Use of Machine Learning Models for Prediction of Organic Carbon and Nitrogen in Soil from Hyperspectral Imagery in Laboratory

open access: yesJournal of Spectroscopy, 2023
Organic carbon and total nitrogen are essential nutrients for plant growth. The presence of these nutrients at acceptable levels can create an optimal environment for the development of crops of interest.
Manuela Ortega Monsalve   +3 more
doaj   +1 more source

The role of Gamma Knife radiosurgery in the management of skull base chordoma

open access: yesFrontiers in Oncology, 2023
ObjectiveChordoma is a slow-growing and locally aggressive cancer, which arises from the remnants of the primitive notochord. The first line treatment for the skull base chordoma is neurosurgery.
Kuanyu Wang   +9 more
doaj   +1 more source

Repeat gamma knife radiosurgery for cavernous sinus hemangiomas: A report of 3 cases

open access: yesInterdisciplinary Neurosurgery, 2021
Background: Gamma knife radiosurgery(GKS) is well established in the management of cavernous sinus hemangiomas(CaSHs) alternative to microsurgery. Tumor regrowth is occasionally encountered and the role of repeat GKS in these situations is still unclear.
Xuqun Tang   +5 more
doaj   +1 more source

Celiac disease and primary hyperparathyroidism

open access: yesRevista de la Facultad de Ciencias Médicas de Córdoba, 2023
Objective. Primary hyperparathyroidism (PHPT) and celiac disease (CD) are two distinct medical conditions that can affect bone health. While PHPT leads to excessive calcium levels and bone abnormalities, CD impairs calcium and vitamin D absorption due ...
Luis Agustín Ramírez Stieben   +4 more
doaj   +1 more source

Niveles de 25(OH)D durante la pandemia de COVID-19: impacto del confinamiento y la radiación ultravioleta

open access: yesGaceta Médica de México, 2023
Antecedentes: Las políticas de confinamiento domiciliario durante la pandemia de COVID-19 limitaron la exposición solar y pudieron influir en los niveles de vitamina D. Objetivo: Evaluar los cambios en 25(OH)D durante la pandemia de COVID-19 y el impacto
Luis A. Ramírez-Stieben   +6 more
doaj   +1 more source

Leksell Gamma Knife® – The first 1000 patients from the radiation therapist’s perspective

open access: yesJournal of Medical Radiation Sciences, 2021
The Princess Alexandra Hospital (PAH) Gamma Knife® Centre of Queensland (GKCoQ) began operations in October of 2015 as a sub‐specialty located within a larger radiation oncology service at PAH.
Michael Jenkins   +8 more
doaj   +1 more source

Dark photon production via $$\gamma \gamma \rightarrow \gamma A'$$ [PDF]

open access: yesThe European Physical Journal C, 2021
AbstractThe dark photon is a new gauge boson which arises from an extra $$U'(1)$$ U ′ ( 1 ) gauge ...
Xiaorui Wong, Yongsheng Huang
openaire   +2 more sources

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