Results 21 to 30 of about 13,321,560 (330)
A cross-sectional survey of myopia prevalence and its influencing factors among school children and adolescents under the double reduction policy [PDF]
To investigate the influencing factors of myopia among children and adolescents aged 9–14 years under the “double reduction” policy, and to provide a reference for formulating targeted prevention and control measures, a cross-sectional study was ...
Congxiao Zhang +4 more
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Speed reduction in aviation: A double dividend for decarbonization
Aviation faces a structural paradox: five decades of efficiency gains have been absorbed by traffic growth, and absolute emissions continue to rise. Existing sector-wide decarbonization scenarios from ICAO and IATA rest almost entirely on Sustainable ...
Jean-Baptiste Jarin
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In this paper, we consider a member of an integrable family of generalized Camassa–Holm (GCH) equations. We make an analysis of the point Lie symmetries of these equations by using the Lie method of infinitesimals.
Maria Santos Bruzón +2 more
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The doubled geometry of nilmanifold reductions [PDF]
Abstract A class of special holonomy spaces arise as nilmanifolds fibred over a line interval and are dual to intersecting brane solutions of string theory. Further dualities relate these to T-folds, exotic branes, essentially doubled spaces and spaces with R-flux.
Chaemjumrus, N., Hull, C.M.
openaire +4 more sources
Visible Light Promoted Metal Free Sustainable Reduction of Activated Carbon-Carbon Double Bonds Without Any External Reductant [PDF]
Visible light promoted chemo-selective metal free hydrogenation of activated double bond has been achieved via photoredox catalysis. Eosin Y has proved to an efficient catalyst for the effective reduction of C-C double bonds of isatins, oxindoles and ...
Anindita , Bhowmick +2 more
core +2 more sources
From a global perspective, after-school tutoring education, also known as shadow education, has developed rapidly since the beginning of this century.
Kemi Xiang +3 more
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How should off-campus training react to the “Double Reduction” policy? [PDF]
After the introduction of the “Double Reduction” policy, off-campus training institutions are under strict supervision. According to the policy details, discipline training institutions confront various problems, such as the closure of listing channels ...
Yu Shiting
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Whether the double reduction policy reduces parents anxiety over their kids future: a qualitative research from China [PDF]
This qualitative research aims to explore whether parents' education anxiety has been alleviated under the background of China's "double reduction" policy and the current involution of education in China.
Zhang, Shuyang +5 more
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Nitrogen Reduction Reaction: Heteronuclear Double‐Atom Electrocatalysts
Heteronuclear dual‐site catalysts (HDACs), inspired from single‐atom catalyst, have been proposed as advanced alternatives of noble metal catalyst, especially toward nitrogen reduction reaction (NRR).
Yuanzhe Wang +7 more
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Analysis of Molecular Variance (AMOVA) for Autopolyploids
Autopolyploids present several challenges to researchers studying population genetics, since almost all population genetics theory, and the expectations derived from this theory, has been developed for haploids and diploids.
Patrick G. Meirmans, Shenglin Liu
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