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Purpose: To measure zirconia-to-zirconia microtensile bond strength (µTBS) using composite cements with and without primer.
Materials And Methods: Two Initial Zirconia UHT (GC) sticks (1.8x1.
Numerical Simulation of Failure Behavior of Brittle Heterogeneous Rock under Uniaxial Compression Test.
Materials (Basel)
October 2022
Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China.
Rocks have formed heterogeneous characteristics after experiencing complex natural geological processes. Studying the heterogeneity of rocks is significant for rock mechanics. In this study, a linear parallel bond model with Weibull distribution in two-dimensional particle flow code (PFC2D) is adopted to study the mechanical characteristics and brittle failure mode of granite rock specimens with different heterogeneity.
View Article and Find Full Text PDFConfigurational ligand isomerism in conjoined-cages.
Chem Commun (Camb)
July 2022
Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India.
Double-decker shaped conjoined-cages of PdL formulation are prepared self-assembly of Pd(II) with a set of three regioisomeric tridentate ligands. Alongside the targeted double-decker cage, unprecedented hour-glass shaped conjoined-cages of PdL formulation are also formed in two cases. The double-decker cage prepared from one ligand system and the hour-glass from another (but with a regioisomeric ligand) are structurally well suited to exemplify configurational ligand isomerism.
View Article and Find Full Text PDFFrequency and anatomic variability of the mandibular lingual foramina: a cone-beam CT study.
BMC Med Imaging
January 2022
IRCCS Istituto Ortopedico Galeazzi, Milan, Italy.
Article Synopsis
- The study aimed to assess the distribution of lingual foramina (LF) in Caucasian Italian patients using cone-beam CT (CBCT) and examine its correlation with demographic characteristics and mandibular features.
- A total of 300 patients were analyzed, revealing that the most common number of LF per patient was 2, with a broad variability in both midline and lateral LF presence, but no significant differences were found based on gender, mandible width, or shape.
- The findings highlighted a high variability in the number and anatomical distribution of LF in the patient population, providing insights relevant for dental practice and oral surgery.
Shark centra microanatomy and mineral density variation studied with laboratory microComputed Tomography.
J Struct Biol
March 2022
Dept. of Cell and Developmental Biology, Feinberg School of Medicine and Simpson Querrey Inst., Northwestern Univ., Chicago IL, USA. Electronic address:
Centra of shark vertebrae from three species of Lamniformes (Alopias vulpinus, Carcharodon carcharias and Isurus oxyrinchus) and three species of Carcharhiniformes (Carcharhinus plumbeus, Carcharhinus obscurus and Prionace glauca) were imaged with laboratory microcomputed Tomography (microCT) using volume element (voxel) sizes between 16 and 24 µm. Linear attenuation coefficients were the same in the corpus calcarea (hour-glass-shaped cone) and intermedialia of the lamniforms but were smaller in the intermedialia than in the corpus calcarea of the carcharhiniforms. All centra contained growth bands which were visible as small changes in linear attenuation coefficient.
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