Results 271 to 280 of about 2,584,067 (304)
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Nature positive/Design for transformation
2023Abstract: The Track Nature Positive/Design for Transformation started off with a few big questions: Even if we are technologically able to do so, are we still allowed to create our designed environment as we see fit? How can we navigate through sustainable transitions and within planetary boundaries?
Geldermans, Bob +6 more
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Leonardo, 2018
Interpretations of human, plant and animal forms define the sculptures and drawings of MargotMcMahon. Humans, plants and animals symbolizing lifeforms may be fused into organic interpretations in bronze, ciment Fondu, aluminum, stone or wood. These sculptural symbols, in natural materials, emphasize the importance of interdependent and unique evolved ...
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Interpretations of human, plant and animal forms define the sculptures and drawings of MargotMcMahon. Humans, plants and animals symbolizing lifeforms may be fused into organic interpretations in bronze, ciment Fondu, aluminum, stone or wood. These sculptural symbols, in natural materials, emphasize the importance of interdependent and unique evolved ...
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Natural transformation in river epilithon
Applied and Environmental Microbiology, 1996Natural transformation was demonstrated in unenclosed experiments incubated in river epilithon. Strains of Acinetobacter calcoaceticus were transformed to prototrophy by either free DNA (lysates) or live donor cells. The sources of transforming DNA and recipient culture were immobilized on filters, secured to stones, and incubated midstream in the ...
H G, Williams +3 more
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Homotopy of Natural Transformations
Canadian Journal of Mathematics, 1970Let C be a full subcategory of T, the category of based topological spaces and based maps, and let Cn be the corresponding category of n-tuples. Let S, T: Tn → T be covariant functors which respect homotopy classes and let u, v: S → T be natural transformations, u and v are homotopic inC, denoted u ≃ v(C), if uX ≃ vX: SX → TX (X ∈ Cn), that is to say ...
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Natural Transformation in Escherichia coli
2019Escherichia coli is well known for its ability to undergo artificial transformation. This bacterium is not generally recognized as naturally transformable. However, several past studies have demonstrated that laboratory and natural strains of E. coli can express modest natural competence under feasible environmental conditions.
Yoko, Komiyama, Sumio, Maeda
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1992
Abstract Given a parallel pair of functors F, G: A→B, a natural transformation from F to G is a family of arrows vA: FA→ GA, one for each object A of A, such that for every arrow f: A→ A' of A the following square commutes: Suppose that A is Cartesian closed and take any object A of A.
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Abstract Given a parallel pair of functors F, G: A→B, a natural transformation from F to G is a family of arrows vA: FA→ GA, one for each object A of A, such that for every arrow f: A→ A' of A the following square commutes: Suppose that A is Cartesian closed and take any object A of A.
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Natural Transformation of Oral Streptococci
2010Natural transformation is found in most groups of oral streptococci, including the mitis, the anginosus, and the mutans groups. This ability has been applied as a powerful tool to explore streptococcal gene functions and regulatory pathways, particularly in Streptococcus mutans and Streptococcus gordonii.
Fernanda Cristina, Petersen +1 more
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The Biology of Natural Transformation
Annual Review of Microbiology, 1986Natural transformation is widely distributed among bacteria. Its variations, in terms of specific mechanisms, may in part reflect responses to different selective pressures in different bacteria. We have suggested that both gene transfer and acquisition of carbon, nitrogen, and energy represent physiological needs that may have contributed to the ...
G J, Stewart, C A, Carlson
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Natural Resource Transformation: Incorporating Identity
Journal of Peacebuilding & Development, 2006Natural resource issues provide a useful context for analysing and intervening in the Israeli-Palestinian conflict because environmental destruction harms both Israelis and Palestinians given their close proximity in a small, ecologically fragile landscape.
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Flavocytochromes: Nature’s Electrical Transformers
1998Flavocytochromes, as the name suggests, contain both flavin and heme groups as cofactors. The flavin can be flavin adenine dinucleotide (FAD) or flavin mononucleotide (FMN) and the heme is usually heme-b or heme-c. Typical cofactors are illustrated in Figure 1.
S. K. Chapman, G. A. Reid, A. W. Munro
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