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Molecular hydrogen (hydrogen gas; H2) is gaining prominence in the scientific literature as well as the popular media. Early studies suggest the use of H2 treatment for a wide range of human diseases, from COVID-19 to various neurodegenerative diseases. Moreover, its biological activity also appears to have therapeutic and regulatory effects in plants. Accordingly, it has been suggested to be useful in agricultural settings. H2 has effects on a range of physiological events in plants. It has been shown to have effects on seed germination, plant growth, and development. It has also been found to be involved in plant stress responses and to be protective against abiotic stress. It also has beneficial effects during the post-harvest storage of crops. Therefore, its use in the agricultural setting has great potential as it appears to be safe, with no toxicity or harm to the environment. One of the conundrums of the use of H2 is how it induces these effects in plants and plant cells. It is difficult to envisage how it works based on a classical receptor mechanism. There is evidence that it may act as a direct antioxidant, by scavenging hydroxyl radicals, or via enhancing the plant’s innate antioxidant system as a signaling molecule. It has also been reported to exert effects through action on heme oxygenase, cross-talk with other signaling molecules, and regulating the expression of various genes. However, how H2 fits into, and integrates with, other signaling pathways is not clearly understood. Future work is needed to elucidate the mechanism and significance of the interaction of H2 with these and other cellular systems.

Technology: general issues --- History of engineering & technology --- antioxidants --- heme oxygenase --- hydrogen gas --- hydrogenase --- hydroxyl radicals --- molecular hydrogen --- nitric oxide --- reactive oxygen species --- Chinese chive --- storage quality --- antioxidant capacity --- hydrogen nanobubble water --- vase life --- senescence-associated enzymes --- cut carnation flowers --- glucosamine --- sucrose --- starch --- gene expression --- sugar metabolism --- amylose --- cadmium --- field quality --- hydrogen-based agriculture --- rice --- Wuzhimaotao (Ficus hirta Vahl) --- hydrogen --- transcription factors --- secondary metabolism --- phytohormones signaling pathways --- phenylpropanoid biosynthesis and metabolism --- Chinese herbal medicine --- carbendazim degradation --- glutathione metabolism --- detoxification system --- redox balance --- cut flower --- flower industry --- postharvest quality --- postharvest technique --- the fourth industrial revolution --- n/a

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Lorsque les filles de Walt Disney le supplient d’adapter au cinéma leur livre préféré, « Mary Poppins », celui-ci leur fait une promesse… qu’il mettra vingt ans à tenir ! Dans sa quête pour obtenir les droits d’adaptation du roman, Walt Disney va se heurter à l’auteure, Pamela Lyndon Travers, femme têtue et inflexible qui n’a aucunement l’intention de laisser son héroïne bien aimée se faire malmener par la machine hollywoodienne. Mais quand les ventes du livre commencent à se raréfier et que l’argent vient à manquer, elle accepte à contrecoeur de se rendre à Los Angeles pour entendre ce que Disney a imaginé… Au cours de deux semaines intenses en 1961, Walt Disney va se démener pour convaincre la romancière. Armé de ses story-boards bourrés d’imagination et des chansons pleines d’entrain composées par les talentueux frères Sherman, il jette toutes ses forces dans l’offensive, mais l’ombrageuse auteure ne cède pas. Impuissant, il voit peu à peu le projet lui échapper… Ce n’est qu’en cherchant dans le passé de P.L. Travers, et plus particulièrement dans son enfance, qu’il va découvrir la vérité sur les fantômes qui la hantent. Ensemble, ils finiront par créer l’un des films les plus inoubliables de l’histoire du 7ème art…

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Telecommunication --- Information theory --- Télécommunications --- Théorie de l'information

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"The Dictionary of Bioinformatics and Computational Biology provides a vital reference for important terms, offering students and researchers a convenient summary of the core knowledge of the field. With concise and accurate definitions of over 600 words, phrases, and concepts, this volume offers thorough A-Z coverage, lists references and Internet links, incorporates cross-referencing throughout, and features a comprehensive index of topics." "Anyone working in basic sciences and clinical research today will find the Dictionary of Bioinformatics and Computational Biology to be an essential companion."--Jacket.

Bioinformatics --- Computational biology --- Computational Biology --- English. --- Biology --- Bio-informatics --- Biological informatics --- Information science --- Systems biology --- Bio-Informatics --- Biology, Computational --- Computational Molecular Biology --- Molecular Biology, Computational --- Bio Informatics --- Bio-Informatic --- Bioinformatic --- Biologies, Computational Molecular --- Biology, Computational Molecular --- Computational Molecular Biologies --- Molecular Biologies, Computational --- Computational Chemistry --- Genomics --- Data processing