Results 31 to 40 of about 229,644 (295)
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
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]
Tato práce se zabývá návrhem experimentální aparatury a metodologie ke sledování dynamického chování termochromních kapalných krystalů (Thermochromic liquid crystals, TLC).
Jan Medek
core
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
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
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
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
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
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
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

