Results 21 to 30 of about 507,167 (283)

A calculation-free derivation of GR

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
I derive GR from the standard observational requirements plus a recent proof that a linear spin 2 field can only propagate on a Ricci-flat (or constant) background, of which it is a perturbation: it is an Einstein field.
S. Deser
doaj   +1 more source

Stability of the GRS model [PDF]

open access: yesPhysics Letters B, 2001
We discuss the compatibility between the weaker energy condition and the stability of Gregory, Rubakov and Sibiryakov (GRS) model. Because the GRS spacetime violates the weak energy condition, it may cause the instability. In the GRS model, the four dimensional gravity can be described by the massive KK modes with the resonance.
Myung, Y. S., Kang, Gungwon
openaire   +3 more sources

sciapp/gr: v0.69.0

open access: yes, 2022
GR framework: a graphics library for visualisation ...
Josef Heinen   +18 more
core   +1 more source

Characteristics of chlorophyll fluorescence and antioxidative system in super-hybrid rice and its parental cultivars under chilling stress

open access: yesBiologia Plantarum, 2010
Characteristics of chlorophyll fluorescence and antioxidative system were investigated in rice (Oryza sativa L.) super-hybrid Liangyoupeijiu (LYPJ), maternal cultivar Peiai64s, and paternal cultivar indica rice 9311 under chilling stress.
Y. H. Zhang   +5 more
doaj   +1 more source

ELIXIR-GR Training Activities: ELIXIR-GR All Hand Meeting 2020

open access: yes, 2020
An update of the Training activities funded by and/or relevant to ELIXIR-GR.
Psomopoulos, Fotis
core   +1 more source

sciapp/gr: v0.58.1

open access: yes, 2021
GR framework: a graphics library for visualisation ...
Josef Heinen   +14 more
core   +1 more source

Aluminum-induced changes in reactive oxygen species accumulation, lipid peroxidation and antioxidant capacity in wheat root tips

open access: yesBiologia Plantarum, 2012
The present study investigated the effects of aluminum on lipid peroxidation, accumulation of reactive oxygen species and antioxidative defense systems in root tips of wheat (Triticum aestivum L.) seedlings.
F. J. Xu   +6 more
doaj   +1 more source

Explanation of the Factors Involved in the Efficacy of Education in Developing Educational Curricula of Medical Universities [PDF]

open access: yesPizhūhish dar Āmūzish-i ̒ulūm-i Pizishkī, 2022
Introduction: The evolution of today's society depends on the evolution of educational systems. An educational course covers subjects such as evaluation, assessment, efficacy, and measurement.
AR Shouri Bidgoli   +2 more
doaj  

Computed tomography angiography scoring systems and the role of skull defects in the confirmation of brain death

open access: yesScientific Reports, 2021
To assess and compare all current computed tomography angiography (CTA) scoring systems for the diagnostic workup of brain death (BD) to digital subtraction angiography (DSA) and clinical tests.
Petros Zampakis   +8 more
doaj   +1 more source

Ofício Circular nº 8/2021/GR [PDF]

open access: yes, 2021
Ofício Circular nº 8/2021/GR: Autorizações de acesso excepcional – atividades presenciais na Fase 1Ofício Circular nº 8/2021/GR: Autorizações de acesso excepcional – atividades presenciais na Fase
UFSC, GR
core  

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