Titanate-based high-entropy perovskite oxides relaxor ferroelectrics.

Different combinations of monovalent and trivalent A-cations in high-entropy perovskite oxides (HEPOs) were investigated. The multicomponent (A'A″BaSrCa)TiO (A' = Na, K, A″ = Bi, La) perovskite compounds were successfully synthesized by solid-state reaction method persisting average cubic perovskite phase. The trivalent cation exhibited distinct effects on local structure, dielectric properties and relaxor ferroelectric behavior.

Application of the van der Pauw method for electrical conductivity measurements at high temperatures using an insulating compressing ring.

High quality data on the high temperature electrical properties of ceramics, particularly oxides, is of great value for material selection, design, and modeling for a broad range of emerging applications. Utilizing the mismatch in the coefficient of thermal expansion between two materials, a purely mechanical method for establishing electrical contact in the van der Pauw geometry to measure the bulk resistivity of ceramic disks at high temperatures is presented. Measurements of a reference material, 20 mol.

The implementation of random survival forests in conflict management data: An examination of power sharing and third party mediation in post-conflict countries.

Time-to-event analysis is a common occurrence in political science. In recent years, there has been an increased usage of machine learning methods in quantitative political science research. This article advocates for the implementation of machine learning duration models to assist in a sound model selection process.

Sarcasm detection in native English and English as a second language speakers.

Sarcastic speech is ubiquitous in most languages, though understanding sarcasm is highly dependent upon cultural and social contextual factors (Campbell & Katz, Discourse Processes, 2012, 49, 459). It is therefore surprising that little research has examined the ability of nonnative speakers to understand the sarcastic cues of a second language. In the current study, native English speakers and English as a second language (ESL) speakers were tested in each of four different conditions.