Results 31 to 40 of about 229,644 (295)

The Effectiveness of the Student Activity Sheet (SAS) on Teaching-Learning and Creativity (TLC) Model to Increase Creativity Competence

open access: yesStudies in Learning and Teaching, 2020
The purpose of this study explains the effectiveness of the student activity sheet model to enhance scientific creativity and student learning outcomes and student responses to the learning process.
Dwikoranto   +7 more
doaj   +1 more source

PHYSICAL AND CHEMICAL METHODS FOR FLAVONOIDS CONTENT DETERMINATION IN SOPHORA FLAVESCENS ROOTS

open access: yesФармация и фармакология (Пятигорск), 2015
The article presents a study on the identification methodology elaboration of flavonoids in Sophora flavescens roots using chemical reaction and TLC method. We have also developed methods of quantitative determination of flavonoids sum into raw materials
A. B. Samoryadova
doaj   +1 more source

Thermochromic liquid crystals (TLC) calibration [PDF]

open access: yes, 2020
Tato práce se zabývá návrhem experimentální aparatury a metodologie ke sledování dynamického chování termochromních kapalných krystalů (Thermochromic liquid crystals, TLC).
Jan Medek
core  

Beyond Visual Scoring: Computational Computed Tomography Analysis for High‐Resolution Computed Tomography–Based Quantification of Interstitial Lung Disease in Inflammatory Rheumatic Disease

open access: yesArthritis Care &Research, EarlyView.
Interstitial lung disease (ILD) is a significant cause of morbidity and mortality in patients with inflammatory rheumatic disorders (IRDs). High‐resolution computed tomography (HRCT) is widely considered the gold standard for the noninvasive assessment of ILD; however, its interpretation is constrained by substantial interobserver variability and the ...
Alexander Pfeil   +7 more
wiley   +1 more source

Impedance-based in vitro eye irritation testing enables the categorization of diluted chemicals

open access: yesScientific Reports
Products containing chemicals with eye irritation potential need to be labeled with the respective hazard symbol. To avoid the testing of numerous dilutions of chemicals on animals, their labeling is directed by a theoretical approach.
H. Weissinger   +3 more
doaj   +1 more source

Comparative authentication of Hypericum perforatum herbal products using DNA metabarcoding, TLC and HPLC-MS

open access: yesScientific Reports, 2017
Many herbal products have a long history of use, but there are increasing concerns over product efficacy, safety and quality in the wake of recent cases exposing discrepancies between labeling and constituents. When it comes to St. John’s wort (Hypericum
A. Raclariu   +8 more
semanticscholar   +1 more source

Selenium‐Integrated Cyanine Dye With Enhanced Photophysical Properties for Optoacoustic‐Guided Cancer Imaging and Therapy

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces selenium‐integrated cyanine dye (Se‐Cyn), with superior photostability, absorption, and photothermal efficiency, outperforming ICG in NIR window. Its nanoparticle form remains stable in water, accumulates in tumors, and enables strong optoacoustic imaging and effective phototherapy outcomes.
Divyesh Shelar   +11 more
wiley   +1 more source

A New Feed-Forward Control for Dynamics Improvement in a Dual-Input DC–DC Converter for Hybrid Vehicle Applications

open access: yesEnergies
In this study, a double-input single-output bidirectional DC–DC converter is considered. This particular architecture allows less switches to be used than a conventional solution.
Alessandro Benevieri   +6 more
doaj   +1 more source

Study the polyphenolic compounds composition of Thymus vulgaris L. herb

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2023
The Thymus L. genus is extremely widespread on the territory of Ukraine and includes up to 50 main species. Extracts from the official species of the Thymus L.
O. V. Mazulin   +2 more
doaj   +1 more source

High-throughput radio-TLC analysis

open access: yesNuclear Medicine and Biology, 2019
Introduction Radio thin layer chromatography (radio-TLC) is commonly used to analyze purity of radiopharmaceuticals or to determine the reaction conversion when optimizing radiosynthesis processes. In applications where there are few radioactive species,
Jia Wang   +5 more
semanticscholar   +1 more source

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