In this article, the author describes the different types of magnifying-glasses which can be used in a dental practice. He informs about his own experience in using these glasses in his daily practice.
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Mercury and selenium in biological pump under upwelling-downwelling influence in Cabo Frio shelf, South Atlantic Ocean, Brazil.
Sci Total Environ
January 2025
Universidade Federal do Pará, Programa de Pós-Graduação em Geologia e Geoquímica, Rua Augusto Corrêa, 1, Campus Guamá, PA 66075-110 Belém, Pará, Brazil.
The knowledge of metals concentration in upwelling areas are a concern due the higher productivity of these areas In Cabo Frio Upwelling-Downwelling System (CFUS) is high primary productivity area and has been identified as an Hg hotspot to biota in SE Brazil that has been susceptible to Hg inputs, due to growing industrialization in the region. To investigate the concentration of Hg and Se metals, as well as the trophic transfer of these metals, the present study investigated Hg and Se concentrations in 64 samples collected in net mesh of >20, >64, >150 and >300 μm, in 2012, in the region's water masses. Higher mean Hg concentrations were found in zooplankton, 0.
View Article and Find Full Text PDFNectin-4 Expression in Prostatic Adenocarcinoma: An Immunohistochemical Study.
Prostate
January 2025
Department of Medical Oncology, Johns Hopkins Hospital, Baltimore, Maryland, USA.
Background: The Nectin-4 directed antibody drug conjugate enfortumab vedotin (EV) has emerged as frontline systemic therapy in combination with immune checkpoint blockade for urothelial carcinoma (UC), capitalizing on the ubiquitous expression of this protein in UC. There is limited data available regarding expression of Nectin-4 by immunohistochemistry in prostate cancer, but this is of interest as a substantial number of UC patients likely to receive EV have concomitant prostate cancer.
Methods: Nectin-4 protein expression was evaluated by immunohistochemistry in tissue microarrays encompassing a cohort of 302 prostatic adenocarcinomas spanning Grade Groups 1-5.
Magnetic particles (FeO) magnify ion transfer processes at the electrified liquid-liquid interface. Case study: Levamisole detection.
Talanta
December 2024
University of Lodz, Department of Inorganic and Analytical Chemistry, Electroanalysis and Electrochemistry Group, Faculty of Chemistry, Tamka 12, 91-403, Lodz, Poland. Electronic address:
This article describes the effect of non-stabilized magnetic particles FeO (nanoparticles aggregates) addition to the aqueous phase of the polarized liquid-liquid interface (LLI) on the interfacial ion transfer processes. LLI was formed between 1,2-dichloroethane and water solutions (1,2 DCE)|water. The synthesis of FeO magnetic particles (MPs) was achieved by the co-precipitation method, after which their appearance, size of aggregates, and zeta potential were assessed.
View Article and Find Full Text PDFAn aptasensor consisting of the integrated MOF-derived Zn-MOF-on-Co-MOF coupled with AuNPs nanocomposites and aptamer for ultrasensitive assay of fipronil.
Food Chem
December 2024
School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China.
The conductivity of Zn-MOF-on-Co-MOF synthesized by one-pot method is improved by searching for the optimum carbonization temperature, which overcomes the limitation of traditional MOF. In order to further enhance electron transfer, the mesoporous PtPdCo trimetal was introduced, which provided considerable load capacity for methylene blue (MB) and reverse complementary DNA (sDNA), and also showed excellent catalytic activity for MB. In this study, the conductivity of aptasensor was improved by modifying carbonized MOF as the base material.
View Article and Find Full Text PDFThe evaluation of the accuracy of a wireless electronic apex locator in primary molar teeth.
BMC Oral Health
December 2024
Faculty of Dentistry, Department of Endodontics, Ankara University, Ankara, Turkey.
Background: The working length determination is necessary before root canal shaping, chemical cleaning, disinfection, and obturation in pulpectomy of primary dentition. This study aimed to evaluate the accuracy of Wirele-X and compare it with DentaPort ZX and Woodpex III in primary molar teeth.
Methods: The in vitro study was performed by using 30 extracted primary mandibular molar teeth.
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