Results 31 to 40 of about 184,109 (177)

Enantioselective Biosynthesis of L-Phenyllactic Acid From Phenylpyruvic Acid In Vitro by L-Lactate Dehydrogenase Coupling With Glucose Dehydrogenase

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
As a valuable versatile building block, L-phenyllactic acid (L-PLA) has numerous applications in the fields of agriculture, pharmaceuticals, and biodegradable plastics. However, both normally chemically synthesized and naturally occurring PLA are racemic,
Dong Zhang   +5 more
doaj   +1 more source

Multiclass characterization of frontotemporal dementia variants via multimodal brain network computational inference

open access: yesNetwork Neuroscience, 2023
Characterizing a particular neurodegenerative condition against others possible diseases remains a challenge along clinical, biomarker, and neuroscientific levels.
Raul Gonzalez-Gomez   +2 more
doaj   +1 more source

On Convergence of Epanechnikov Mean Shift

open access: yes, 2017
Epanechnikov Mean Shift is a simple yet empirically very effective algorithm for clustering. It localizes the centroids of data clusters via estimating modes of the probability distribution that generates the data points, using the `optimal' Epanechnikov
Fu, Xiao   +2 more
core   +1 more source

Systemic Approach to the Choice of Optimum Variant of Radioactive Waste Management

open access: yesProceedings of the International Symposium on the Analytic Hierarchy Process, 2001
Summary: Czech Republic started its research in the area of nuclear safety in the 50´s. Attention was paid mainly to the technological criteria and to the simulation of technological systems, including radioactive waste management. In 1982 the Analytical Hierarchy Process (AHP) was applied to radwaste management criteria for the first time in the ...
J. Hálová, T. Feglar
openaire   +1 more source

Signet ring cell cancer of Ampulla of Vater—first ever case reported in a teenager and a review of literature

open access: yesRare Tumors, 2021
Ampullary cancers are rare accounting for 0.2% of all gastrointestinal cancers. Signet ring is a rare variant of adenocarcinoma, characterized by having more than 50% of mucin secreting cells and clinically having a worse prognosis.
Asad Ali Kerawala   +2 more
doaj   +1 more source

Axial-Flow Pump with Enhanced Cavitation Erosion Resistance

open access: yesEnergies, 2023
Axial-flow pumps, in addition to providing high anti-cavitation properties, must have high anti-erosion properties to ensure the required lifetime of the pump.
Aleksandr Zharkovskii   +5 more
doaj   +1 more source

Significantly High HbA1c in Diabetic Patient with Hb J: Case Report

open access: yesOman Medical Journal, 2022
Glycated hemoglobin (HbA1c) is used to monitor the long-term management of diabetes and reflects the average blood glucose level over the past three months.
Wan Nor Fazila Hafizan Wan Nik   +3 more
doaj   +1 more source

Immobilization of Naringinase from Penicillium decumbens on Chitosan Microspheres for Debittering Grapefruit Juice

open access: yesMolecules, 2019
Naringinase is an enzyme complex which exhibits α-l-rhamnosidase and β-d-glucosidase activity. This enzymatic complex catalyzes the hydrolysis of naringin (4′,5,7-trihydroxy flavanone 7-rhamnoglucoside), the main bittering component in ...
Joanna Bodakowska-Boczniewicz   +1 more
doaj   +1 more source

DES-Based Biocatalysis as a Green Alternative for the l-menthyl Ester Production Based on l-menthol Acylation

open access: yesMolecules, 2022
The deep eutectic solvent (DES)-based biocatalysis of l-menthol acylation was designed for the production of fatty acid l-menthyl ester (FME) using fatty acid methyl ester (FAME).
Sabina Ion   +6 more
doaj   +1 more source

Improving Christofides' Algorithm for the s-t Path TSP [PDF]

open access: yes, 2011
We present a deterministic (1+sqrt(5))/2-approximation algorithm for the s-t path TSP for an arbitrary metric. Given a symmetric metric cost on n vertices including two prespecified endpoints, the problem is to find a shortest Hamiltonian path between ...
An, Hyung-Chan   +2 more
core  

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