Results 81 to 90 of about 6,006 (267)

Synthesis and Transformations of Bioactive Scaffolds via Modified Mannich and aza‐Friedel–Crafts Reactions

open access: yesThe Chemical Record, EarlyView.
The stabilization of precursors substituted with 2‐, 1‐naphthol via partially aromatic ortho‐quinone methide intermediate was tested with different cyclic imines in [4+2] cycloaddition.8‐Hydroxyquinoline as a formal 1‐naphthol analogue in Mannich reaction was tested.The formed Mannich bases substituted with 2‐ and 1‐naphthol, 5‐chloro‐8 ...
Dóra Hegedűs   +3 more
wiley   +1 more source

Elemental Mapping of Historical Daguerreotypes Using Monochromatic Micro‐XRF: Imaging, Degradation, and Conservation Potential

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT The daguerreotype, introduced by Louis‐Jacques‐Mandé Daguerre in 1839, marked the beginning of photography. This early photographic process, based on halide‐sensitized silver‐coated copper plates developed with mercury vapor, produces highly reflective, image‐bearing surfaces that are both visually unique and chemically complex. As part of the
Valentina Ljubić Tobisch   +7 more
wiley   +1 more source

Investigation of acute and sub-chronic oral toxicity and effects of Allium ascalonicum L. extract on Triton WR1339-induced hyperlipidemia on Swiss albino mice

open access: yesPharmacological Research - Modern Chinese Medicine
Introduction: Metabolic disorders are increasingly rapidly becoming a burden on global healthcare systems. Among these, hyperlipidemia frequently leads to cardiovascular diseases such as myocardial infarction and cerebral stroke, posing significant life ...
Duyen Thi My Huynh   +3 more
doaj  

Effectiveness of the iVac System Compared to Conventional Irrigation and Ultrasonic Activation in Reducing Microbial Biofilm, Lipopolysaccharides and Apical Extrusion

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This in vitro study evaluated the effectiveness of irrigation techniques (IT)—conventional irrigation (CI), ultrasonic activation (UA), and iVac system (IA)‐ using 2.5% NaOCl and saline in reducing Enterococcus faecalis, Escherichia coli and Candida albicans in root canals and intratubular dentine.
Brenda P. F. A. Gomes   +9 more
wiley   +1 more source

Recent knowledge about the role of bacterial adhesion in coal preparation [PDF]

open access: yes, 1998
V nadväznosti na flotáciu pyritu v uhlí sú zhrnuté súèasné poznatky o vplyve fyzikálno-chemických vlastností buneènej steny baktérie Thiobacillus ferrooxidans na jej adhéziu na povrch rôznych minerálov a uhlia.
Kupka Daniel   +2 more
core  

Competitive kinetics study of sulfide oxidation by chlorine using sulfite as reference compound

open access: yes, 2014
International audienceTo design and optimize hydrogen sulfide scrubbers working with chlorine, the knowledge of the kinetics of the hydrogen sulfide oxidation is necessary.
Azizi, Mohamed   +3 more
core   +2 more sources

Microbial Loads in Traumatized Immature Teeth and Their Impact on the Treatment Outcomes of Regenerative Endodontic Treatment: A Randomized Clinical Trial Comparing Chlorhexidine and Calcium Hydroxide

open access: yesDental Traumatology, EarlyView.
ABSTRACT Introduction Regenerative endodontic treatment (RET) aims to promote root maturation in necrotic immature teeth, where effective microbial disinfection is crucial for treatment success. This study evaluated the effect of calcium hydroxide (CH) and 2% chlorhexidine gluconate (CHD) as intracanal medicaments and their impact on bacterial loads ...
Alina Wikström   +5 more
wiley   +1 more source

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