Extensive spaceflight life investigations (SLIs) have revealed observable space effects on plants, particularly their growth, nutrition yield, and secondary metabolite production. Knowledge of these effects not only facilitates space agricultural and biopharmaceutical technology development but also provides unique perspectives to ground-based investigations. SLIs are specialized experimental protocols and notable biological phenomena. These require specialized databases, leading to the development of the NASA Science Data Archive, Erasmus Experiment Archive, and NASA GeneLab. The increasing interests of SLIs across diverse fields demand resources with comprehensive content, convenient search facilities, and friendly information presentation. A new database SpaceLID (Space Life Investigation Database http://bidd.group/spacelid/ ) was developed with detailed menu search tools and categorized contents about the phenomena, protocols, and outcomes of 459 SLIs (including 106 plant investigations) of 92 species, where 236 SLIs and 57 plant investigations are uncovered by the existing databases. The usefulness of SpaceLID as an SLI information source is illustrated by the literature-reported analysis of metabolite, nutrition, and symbiosis variations of spaceflight plants. In conclusion, this study extensively investigated the impact of the space environment on plant biology, utilizing SpaceLID as an information source and examining various plant species, including Arabidopsis thaliana, Brassica rapa L., and Glycyrrhiza uralensis Fisch. The findings provide valuable insights into the effects of space conditions on plant physiology and metabolism.
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http://dx.doi.org/10.1007/s00425-023-04213-0 | DOI Listing |
Proc Natl Acad Sci U S A
January 2025
Laboratory of Crystallographic Studies, Instituto Andaluz de Ciencias de la Tierra, Consejo Superior de Investigaciones Científica, Armilla 18100, Spain.
Revealing the origin of life and unambiguously detecting fossil remains of the earliest organisms are closely related aspects of the same scientific research. The synthesis of prebiotic molecular building blocks of life and the first compartmentalization into protocells have been considered two events apart in time, space, or both. We conducted lightning experiments in borosilicate reactors filled with a mixture of gases mimicking plausible geochemical conditions of early Earth.
View Article and Find Full Text PDFSci Adv
January 2025
New Cornerstone Science Laboratory, Department of Physics, The University of Hong Kong, Hong Kong 999077, China.
Real multi-bandgap systems have non-abelian topological charges, with Euler semimetals being a prominent example characterized by real triple degeneracies (RTDs) in momentum space. These RTDs serve as "Weyl points" for real topological phases. Despite theoretical interest, experimental observations of RTDs have been lacking, and studies mainly focus on individual RTDs.
View Article and Find Full Text PDFMater Horiz
January 2025
National local joint engineering research center for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Batteries Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China.
The stable operation of high-capacity lithium-sulfur batteries (LSBs) has been hampered by slow conversion kinetics of lithium polysulfides (LiPSs) and instability of the lithium metal anodes. Herein, 6-(dibutylamino)-1,3,5-triazine-2,4-thiol (DTD) is introduced as a functional additive for accelerating the kinetics of cathodic conversion and modulating the anode interface. We proposed that a coordination interaction mechanism drives the polysulfide conversion and modulates the Li solvated structure during the binding of the N-active site of DTD to LiPSs and lithium salts.
View Article and Find Full Text PDFJ Law Med
November 2024
Menzies Health Institute Queensland, Griffith University, Queensland, Australia.
The framing of patients making decisions about their medical treatment and care as traditional legal decisions, thresholds and formalities is a means to avoid legal liabilities through a rationalisation of decision-making, autonomy and choice. A credible account for the actual place of patients posits the sovereign power (founded in the works of Carl Schmitt and Giorgio Agamben) of the health care professional deciding the state of exception - a discrete legal space where the authority of health care professionals is both lawful and beyond the law. This reveals that dealing with broadly conceived consent issues with more law, more process and procedure but without addressing the inherent legality assumptions that empower health care professionals will always be flawed.
View Article and Find Full Text PDFBMC Geriatr
January 2025
International Observatory on End of Life Care, Lancaster University, Lancaster, UK.
Background: Namaste Care is an intervention designed to improve the quality of life for people with advanced dementia by providing individualised stimulation and personalised activities in a group setting. Current evidence indicates there may be benefits from this intervention, but there is a need to explore the practical realities of its implementation, including potential barriers, enablers, and how it is delivered within the context of nursing care homes.
Objective: To systematically assess the factors involved in implementing Namaste Care for people with advanced dementia in nursing care homes.
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