Lors de mon recent periple de deux semaines a travers la region autonome ouigoure du Xinjiang,dans le nord-ouest de la Chine,une question m'a constamment occupe I'esprit.Ayant grandi dans cette region jusqua m...Lors de mon recent periple de deux semaines a travers la region autonome ouigoure du Xinjiang,dans le nord-ouest de la Chine,une question m'a constamment occupe I'esprit.Ayant grandi dans cette region jusqua mes 18 ans,comment pourrais-je partager avec le monde exterieur les récits de vie qui se tissent ici?Souvent percues comme trop simples pour attirer I'attention mediatique.展开更多
L'agriculture constitue un pilier central de la coopération entre la Chine et I'Éthiopie,illustrépar de nombreux projets d'aide bilatéraux.Le projet sino-éthiopien d'enseigneme...L'agriculture constitue un pilier central de la coopération entre la Chine et I'Éthiopie,illustrépar de nombreux projets d'aide bilatéraux.Le projet sino-éthiopien d'enseignement et de formation techniques professionnels et agricoles(ATVET),lancéen 2001,se distingue particu-lièrement.Ce programme a vu la participation de 524 experts chinois répartis en 23 groupes,qui ont contribuéa la formation de près de 100000 étudiants éthiopiens.展开更多
Le chemin de fer Éthiopie-Djibouti,d'une longueur de 752 km et construit par la Chine,a jouéun rôle clédans le trans-port régional depuis le deébut de ses opérations commerciales...Le chemin de fer Éthiopie-Djibouti,d'une longueur de 752 km et construit par la Chine,a jouéun rôle clédans le trans-port régional depuis le deébut de ses opérations commerciales en janvier 2018.Le 17 mai dernier.展开更多
Une rencontre internationale de jeunes La huitième édition du Festival de la jeunesse Chine-Afrique s'est dérou lée du 19 au 26 mai à Beijing et dans la province du Zhejiang.Cetév...Une rencontre internationale de jeunes La huitième édition du Festival de la jeunesse Chine-Afrique s'est dérou lée du 19 au 26 mai à Beijing et dans la province du Zhejiang.Cetévéne-ment,organisédans le cadre du Forum sur la Coopération sino-I africaine,avait pour thème;《Rassembler le pouvoir de la jeunesse pour construire la modernisation de la Chine et de I'Afrique》.展开更多
The emergence of farming has long been construed as a fundamental stepping stone on the path of human progress.Within archaeological research,that emergence has remained a major focus of enquiry,typically with an emph...The emergence of farming has long been construed as a fundamental stepping stone on the path of human progress.Within archaeological research,that emergence has remained a major focus of enquiry,typically with an emphasis on the advantages it conveys upon human societies.Recent studies have opened up a wider range of perspectives.展开更多
Unénorme bonhomme de neige estérigéprès de la rivière SonghuaàHarbin.dans la province du Heilongjiang.le 7 décembre 2022.Le bonhomme de neige est constituéde 2000 mètres cu...Unénorme bonhomme de neige estérigéprès de la rivière SonghuaàHarbin.dans la province du Heilongjiang.le 7 décembre 2022.Le bonhomme de neige est constituéde 2000 mètres cubes de neige et mesure 16 mètres de haut et environ 15 mètres de large.展开更多
The endoplasmic reticulum(ER),the most expansive membrane-bound organelle within cells,acts as a cellular hub interacting with the plasma membrane and other intracellular organelles,constituting an intricate organelle...The endoplasmic reticulum(ER),the most expansive membrane-bound organelle within cells,acts as a cellular hub interacting with the plasma membrane and other intracellular organelles,constituting an intricate organelle-interaction network.Fundamental to cellular functions,the ER governs protein and lipid synthesis,transport,calcium ion exchange.展开更多
A white paper issued by the China Academy of Information and Communications Technology(CAICT) in mid-2022 estimated that China's digital economy stood at$6.3 trillion in 2021,ranking second only to the United Stat...A white paper issued by the China Academy of Information and Communications Technology(CAICT) in mid-2022 estimated that China's digital economy stood at$6.3 trillion in 2021,ranking second only to the United States'$15-trillion market in the same period.Information and technology accounts for nearly 40 percent of China's overall GDP,constituting a doubling of value in the last 10years.展开更多
Artificial Intelligence(AI),defined as“a system’s ability to correctly interpret external data,to learn from such data and to use those learnings to achieve specific goals and tasks through flexible adaptation”(Kap...Artificial Intelligence(AI),defined as“a system’s ability to correctly interpret external data,to learn from such data and to use those learnings to achieve specific goals and tasks through flexible adaptation”(Kaplan&Haenlein,2019b,p.17),has attracted immense attention among academics,business managers,entrepreneurs,and politicians alike.As alleged by Huang and Rust(2018,p.155),AI,despite“constituting a major source of innovation”,is“threatening human jobs”.展开更多
Organic tea is more popular than conventional tea that originates from fertilized plants.Amino acids inorganic soils constitute a substantial pool nitrogen(N)available for plants.However,the amino-acid contents in soi...Organic tea is more popular than conventional tea that originates from fertilized plants.Amino acids inorganic soils constitute a substantial pool nitrogen(N)available for plants.However,the amino-acid contents in soils of tea plantations and how tea plants take up these amino acids remain largely unknown.In this study,we show that the amino-acid content in the soil of an organic tea plantation is significantly higher than that of a conventional tea plantation.Glutamate,alanine,valine,and leucine were the most abundant amino acids in the soil of this tea plantation.When 15 N-glutamate was fed to tea plants,it was efficiently absorbed and significantly increased the contents of other amino acids in the roots.We cloned seven CsLHT genes encoding amino-acid transporters and found that the expression of CsLHT1,CsLHT2,and CsLHT6 in the roots significantly increased upon glutamate feeding.Moreover,the expression of CsLHT1 or CsLHT6 in a yeast amino-acid uptake-defective mutant,22Δ10α,enabled growth on media with amino acids constituting the sole N source.Amino-acid uptake assays indicated that CsLHT1 and CsLHT6 are H^(+)-dependent high-and low-affinity amino-acid transporters,respectively.We further demonstrated that CsLHT1 and CsLHT6 are highly expressed in the roots and are localized to the plasma membrane.Moreover,overexpression of CsLHT1 and CsLHT6 in Arabidopsis significantly improved the uptake of exogenously supplied 15 N-glutamate and 15 N-glutamine.Taken together,our findings are consistent with the involvement of CsLHT1 and CsLHT6 in amino-acid uptake from the soil,which is particularly important for tea plants grown inorganic tea plantations.展开更多
The history of nuclear weapons development since the end of World War II is also one of nuclear arms control.There are two major aspects that represent the global efforts of nuclear arms control,which include limiting...The history of nuclear weapons development since the end of World War II is also one of nuclear arms control.There are two major aspects that represent the global efforts of nuclear arms control,which include limiting on nuclear weapon development in quantities and qualities,and limiting on the proliferation of nuclear weapons and the relevant research and development technologies.The limitation on the nuclear weapons development展开更多
文摘Lors de mon recent periple de deux semaines a travers la region autonome ouigoure du Xinjiang,dans le nord-ouest de la Chine,une question m'a constamment occupe I'esprit.Ayant grandi dans cette region jusqua mes 18 ans,comment pourrais-je partager avec le monde exterieur les récits de vie qui se tissent ici?Souvent percues comme trop simples pour attirer I'attention mediatique.
文摘L'agriculture constitue un pilier central de la coopération entre la Chine et I'Éthiopie,illustrépar de nombreux projets d'aide bilatéraux.Le projet sino-éthiopien d'enseignement et de formation techniques professionnels et agricoles(ATVET),lancéen 2001,se distingue particu-lièrement.Ce programme a vu la participation de 524 experts chinois répartis en 23 groupes,qui ont contribuéa la formation de près de 100000 étudiants éthiopiens.
文摘Le chemin de fer Éthiopie-Djibouti,d'une longueur de 752 km et construit par la Chine,a jouéun rôle clédans le trans-port régional depuis le deébut de ses opérations commerciales en janvier 2018.Le 17 mai dernier.
文摘Une rencontre internationale de jeunes La huitième édition du Festival de la jeunesse Chine-Afrique s'est dérou lée du 19 au 26 mai à Beijing et dans la province du Zhejiang.Cetévéne-ment,organisédans le cadre du Forum sur la Coopération sino-I africaine,avait pour thème;《Rassembler le pouvoir de la jeunesse pour construire la modernisation de la Chine et de I'Afrique》.
文摘The emergence of farming has long been construed as a fundamental stepping stone on the path of human progress.Within archaeological research,that emergence has remained a major focus of enquiry,typically with an emphasis on the advantages it conveys upon human societies.Recent studies have opened up a wider range of perspectives.
文摘Unénorme bonhomme de neige estérigéprès de la rivière SonghuaàHarbin.dans la province du Heilongjiang.le 7 décembre 2022.Le bonhomme de neige est constituéde 2000 mètres cubes de neige et mesure 16 mètres de haut et environ 15 mètres de large.
基金supported by the National Natural Science Foundation of China(3202501232025012,92254307,and 31970695)the Ministry of Science and Technology of the People’s Republic of China(2021YFC2700901)。
文摘The endoplasmic reticulum(ER),the most expansive membrane-bound organelle within cells,acts as a cellular hub interacting with the plasma membrane and other intracellular organelles,constituting an intricate organelle-interaction network.Fundamental to cellular functions,the ER governs protein and lipid synthesis,transport,calcium ion exchange.
文摘A white paper issued by the China Academy of Information and Communications Technology(CAICT) in mid-2022 estimated that China's digital economy stood at$6.3 trillion in 2021,ranking second only to the United States'$15-trillion market in the same period.Information and technology accounts for nearly 40 percent of China's overall GDP,constituting a doubling of value in the last 10years.
文摘Artificial Intelligence(AI),defined as“a system’s ability to correctly interpret external data,to learn from such data and to use those learnings to achieve specific goals and tasks through flexible adaptation”(Kaplan&Haenlein,2019b,p.17),has attracted immense attention among academics,business managers,entrepreneurs,and politicians alike.As alleged by Huang and Rust(2018,p.155),AI,despite“constituting a major source of innovation”,is“threatening human jobs”.
基金This work was supported by grants from the National Natural Science Foundation of China(31770731 to Z.Z.)the National Key Research and Development Program of China(2018YFD1000601)+1 种基金the Base of Introducing Talents for Tea Plant Biology and Quality Chemistry(D20026)the Postdoctoral Science Foundation of China(2020M681636).
文摘Organic tea is more popular than conventional tea that originates from fertilized plants.Amino acids inorganic soils constitute a substantial pool nitrogen(N)available for plants.However,the amino-acid contents in soils of tea plantations and how tea plants take up these amino acids remain largely unknown.In this study,we show that the amino-acid content in the soil of an organic tea plantation is significantly higher than that of a conventional tea plantation.Glutamate,alanine,valine,and leucine were the most abundant amino acids in the soil of this tea plantation.When 15 N-glutamate was fed to tea plants,it was efficiently absorbed and significantly increased the contents of other amino acids in the roots.We cloned seven CsLHT genes encoding amino-acid transporters and found that the expression of CsLHT1,CsLHT2,and CsLHT6 in the roots significantly increased upon glutamate feeding.Moreover,the expression of CsLHT1 or CsLHT6 in a yeast amino-acid uptake-defective mutant,22Δ10α,enabled growth on media with amino acids constituting the sole N source.Amino-acid uptake assays indicated that CsLHT1 and CsLHT6 are H^(+)-dependent high-and low-affinity amino-acid transporters,respectively.We further demonstrated that CsLHT1 and CsLHT6 are highly expressed in the roots and are localized to the plasma membrane.Moreover,overexpression of CsLHT1 and CsLHT6 in Arabidopsis significantly improved the uptake of exogenously supplied 15 N-glutamate and 15 N-glutamine.Taken together,our findings are consistent with the involvement of CsLHT1 and CsLHT6 in amino-acid uptake from the soil,which is particularly important for tea plants grown inorganic tea plantations.
文摘The history of nuclear weapons development since the end of World War II is also one of nuclear arms control.There are two major aspects that represent the global efforts of nuclear arms control,which include limiting on nuclear weapon development in quantities and qualities,and limiting on the proliferation of nuclear weapons and the relevant research and development technologies.The limitation on the nuclear weapons development
