Publications by authors named "M E Kern"
Objective: Investigation of the mechanical properties of occlusal veneers made from zirconia with varying translucency, bonded to different tooth substrates.
Materials And Methods: Sixty-four extracted molars were divided into two groups: preparation within enamel (E) or extending into dentin (D). Veneers were milled from four zirconia ceramics (n = 8): 5Y-TZP (HT), a multilayer of 5 and 3Y-TZP (GT), 3Y-TZP (LT), and 4Y-TZP (MT).
The Brief Inventory of Thriving (BIT) provides a holistic measure of well-being, but has only been validated for adults, and does not have a Hindi version. The present study investigated the unidimensional structure, internal consistency, convergent/discriminant, and criterion validity of both the original English version of the BIT (BIT-E) and its Hindi-translated version (BIT-H) among adolescents in India. Further, we tested measurement invariance across these two language versions, gender, and academic disciplines.
View Article and Find Full Text PDFPurpose: The purpose of this laboratory study was to evaluate common materials for isolation and neutralizing agents for hydrofluoric acid (HF). Additionally, surfaces of lithium disilicate ceramic were examined for precipitates after the etching and neutralizing process.
Materials And Methods: The HF permeability of the following isolation agents (n=8) was investigated by positioning them over pH indicator paper under airtight conditions and applying 9% HF: latex rubber dam; elastic plastomer rubber dam; nitrile gloves; latex gloves; liquid rubber dam; Teflon; AZ strip.
Background The use of automatic external defibrillators (AEDs) by lay rescuers can reduce the time to defibrillation and improve survival in out-of-hospital cardiac arrest (OHCA). AEDs use voice prompts to guide users through the defibrillation process, creating a potential barrier for deaf and hard-of-hearing (HoH) individuals. The objective of this study is to assess familiarity with and concerns regarding AED use among members of these communities.
View Article and Find Full Text PDFArticle Synopsis
- Reasoning involves drawing conclusions from information, with two main types: deductive (drawing specific conclusions from general principles) and inductive (generalizing from specific instances).
- Recent neuroimaging studies suggest that different brain areas, specifically the left inferior frontal gyrus (IFG) and the left dorsolateral prefrontal cortex (DLPFC), are used for these reasoning types, but results have been inconsistent.
- This study utilized high-definition transcranial direct current stimulation (HD-tDCS) on these brain areas to assess their roles in reasoning, finding that IFG stimulation can impair deductive reasoning tasks, while DLPFC stimulation improves performance on challenging inductive reasoning tasks.