Results 61 to 70 of about 534,723 (361)

Evaluation of in vitro toxicity of common phytochemicals included in weight loss supplements using 1H NMR spectroscopy

open access: yesFEBS Open Bio, EarlyView.
We investigated the toxicity of 12 active compounds commonly found in herbal weight loss supplements (WLS) using human liver and colon cell models. Epigallocatechin‐3‐gallate was the only compound showing significant toxicity. Metabolic profiling revealed protein degradation, disrupted energy and lipid metabolism suggesting that the inclusion of EGCG ...
Emily C. Davies   +3 more
wiley   +1 more source

Geometric Optimization and Structural Analysis of Cable-Braced Gridshells on Freeform Surfaces

open access: yesBuildings
In freeform surface grid structures, quadrilateral meshes offer high visual transparency and simple joint connections, but their structural stability is relatively limited.
Xinye Li, Qilin Zhang
doaj   +1 more source

Triple Designs: A Closer Look from Indicator Function

open access: yesMathematics, 2023
A method of tripling for a three-level design, which triples both the run size and the number of factors of the initial design, has been proposed for constructing a design that can accommodate a large number of factors by combining all possible level ...
Zujun Ou, Minghui Zhang, Hongyi Li
doaj   +1 more source

Orthogonality of bounded linear operators on complex Banach spaces [PDF]

open access: yes, 2017
We study Birkhoff-James orthogonality of bounded linear operators on complex Banach spaces and obtain a complete characterization of the same. By means of introducing new definitions, we illustrate that it is possible in the complex case, to develop a ...
K. Paul, D. Sain, A. Mal, Kalidas Mandal
semanticscholar   +1 more source

ORTHOGONALITY AND PARALLELISM OF OPERATORS ON VARIOUS BANACH SPACES [PDF]

open access: yesJournal of the Australian Mathematical Society, 2016
We present some properties of orthogonality and relate them with support disjoint and norm inequalities in $p$ -Schatten ideals. In addition, we investigate the problem of characterization of norm-parallelism for bounded linear operators. We consider the
T. Bottazzi   +4 more
semanticscholar   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Cosine similarity and orthogonality of persistence diagrams

open access: yesAIMS Mathematics
Topological data analysis is an approach to study the shape of a data set by means of topology. Its main object of study is the persistence diagram, which represents the topological features of the data set at different spatial resolutions. Multiple data
Azmeer Nordin   +4 more
doaj   +1 more source

One Note for Fractionation and Increase for Mixed-Level Designs When the Levels Are Not Multiple

open access: yesMathematics, 2021
Mixed-level designs have a wide application in the fields of medicine, science, and agriculture, being very useful for experiments where there are both, quantitative, and qualitative factors.
Yaquelin Verenice Pantoja-Pacheco   +5 more
doaj   +1 more source

Orthogonal Fold & Cut

open access: yes, 2022
We characterize the cut patterns that can be produced by "orthogonal fold & cut": folding an axis-aligned rectangular sheet of paper along horizontal and vertical creases, and then making a single straight cut (at any angle). Along the way, we solve a handful of related problems: orthogonal fold & punch, 1D fold & cut, signed 1D fold & ...
Ani, Joshua   +6 more
openaire   +3 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

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