Results 41 to 50 of about 4,422,072 (371)
On Graphs, Groups and Geometry [PDF]
A metric space (X,d) is declared to be natural if (X,d) determines an up to isomorphism unique group structure (X,+) on the set X such that all the group translations and group inversion are isometries. A group is called natural if it emerges like this from a natural metric.
arxiv
On the cohomology algebra of free loop spaces [PDF]
Let $X$ be a simply connected space and $\Bbb K$ be any field. The normalized singular cochains $N^*(X; {\Bbb K})$ admit a natural strongly homotopy commutative algebra structure, which induces a natural product on the Hochschild homology $HH_* N^*X$ of ...
Ndombol, Bitjong, Thomas, Jean-Claude
core +3 more sources
Analysis of food supplement with unusual raspberry ketone content [PDF]
In recent years food supplement market increased constantly, including slimming products and against obesity. The case of rasberry ketone (RK) is here reported.
Foddai, S.+6 more
core +1 more source
In natural products, a low optical purity is not generally associated with a sloppy enzymatic activity, but rather with the co-expression of antipodal enzymes/directing proteins or, alternatively, with erosion by enzymatic or spontaneous reactions.
Mazzotta, Sarah+5 more
openaire +2 more sources
Recently, the Aspergillus terreus terrein gene cluster was identified and selected for development of a new heterologous expression system. The cluster encodes the specific transcription factor TerR that is indispensable for terrein cluster induction. To
Markus eGressler+4 more
doaj +1 more source
Intertwinors on Functions over the Product of Spheres [PDF]
We give explicit formulas for the intertwinors on the scalar functions over the product of spheres with the natural pseudo-Riemannian product metric using the spectrum generating technique.
Hong, Doojin
core +3 more sources
Antimicrobial Natural Products
Infectious diseases, resulting from microbial pathogens, are one of the major causes of morbidity and mortality worldwide [...]
openaire +3 more sources
Microorganisms form diverse multispecies communities in various ecosystems. The high abundance of fungal and bacterial species in these consortia results in specific communication between the microorganisms.
Tina eNetzker+13 more
doaj +1 more source
Zappa-Sz\'ep product groupoids and C*-blends [PDF]
We study the external and internal Zappa-Sz\'ep product of topological groupoids. We show that under natural continuity assumptions the Zappa-Sz\'ep product groupoid is \'etale if and only if the individual groupoids are \'etale.
Brownlowe, Nathan+4 more
core +2 more sources
Indonesia has abundant traditional fermented food with various lactic acid bacteria (LAB), which can be developed into probiotics for pharmaceutical and functional food and feed products.
Retno Murwani+6 more
doaj +1 more source