Results 71 to 80 of about 4,430 (207)

Changes in Shell and Crystal Structure From Life to Sediments: An EBSD Characterization of Subantarctic Planktic Foraminifera

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract Fossil foraminifera store a wealth of information about past climates and ecosystems in their shell chemistry. However, these element and isotope signals may be affected by post‐mortem diagenesis (i.e., alteration). Here, we use Electron Backscatter Diffraction (EBSD; crystal orientation mapping) to evaluate the structural integrity of sub ...
S. M. Smart, S. E. Fawcett, H. Stowell, A. Pérez‐Huerta   +3 more
wiley   +1 more source

Distal urethral obstruction in an eight‐week‐old colt with struvite urolithiasis

Equine Veterinary Education, Volume 38, Issue 3, Page e130-e136, March 2026.
Summary An 8‐week‐old Thoroughbred colt presented with acute colic signs. Physical examination and transcutaneous ultrasound of the abdomen and penis revealed a urinary tract obstruction in the distal urethra due to urolithiasis. A distal urethrotomy over the site of obstruction was performed to remove the urolith and relieve the obstruction.
M. T. Connaughton, A. Wilson, C. M. Baldwin   +2 more
wiley   +1 more source

Cold Sintering of Calcite: A Low‐Temperature Method for the Fabrication of Artificial Marble

Journal of the American Ceramic Society, Volume 109, Issue 3, March 2026.
Comparison of the hardness of cold and conventionally sintered calcite with artificial marble. ABSTRACT This study presents a novel approach for the low‐temperature fabrication of dense calcite (CaCO3) without the use of a carbon dioxide (CO2) atmosphere.
Eleni Georgiou, Christopher Grimes, Ian M. Reaney   +2 more
wiley   +1 more source

Evidence of structural variability among synthetic and biogenic vaterite

, 2014
Recently, the results of experimental and theoretical investigations have revealed that, in vaterite, two or even more crystalline structures coexist.
REGGI, MICHELA, Damir Kralj, FERMANI, SIMONA, FALINI, GIUSEPPE, Branka Njegić Džakula   +4 more
core   +1 more source

Sculpting the Future of Bone: The Evolution of Absorbable Materials in Orthopedics

Advanced Materials, Volume 38, Issue 9, 12 February 2026.
This review summarizes the current status of polymeric, ceramic, and metallic absorbable materials in orthopedic applications, and highlights several innovative strategies designed to enhance mechanical performance, control degradation, and promote bioactivity. We also discuss the progress and translational potential of absorbable materials in treating
Zhao Wang, Zehui Lv, Xuejie Cai, Yingjie Wang, Bo Peng, Haojing Xu, Hualuo Pang, Xingdong Yang, Jiawei Xu, Yixin Bian, Bin Feng, Peng Wen, Yufeng Zheng, Xisheng Weng   +13 more
wiley   +1 more source

Controlled Synthesis and Microstructure of Metastable Flower-Like Vaterite

, 2018
Developing a simple morphology-controlled synthesis of metastable vaterite is a goal in the field of materials research. In this paper, we successfully synthesized flower-like dendritic vaterite crystals using a microwave method with 2-naphthaleneacetic ...
Weicheng Cao, Yebin Guan, Xiaohong Wang, Gentao Zhou   +3 more
core   +1 more source

Bayesian Neural Network Prediction and Uncertainty Analysis of Bio‐Cemented Soil Strength

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 3, Page 1349-1366, 25 February 2026.
ABSTRACT Microbially induced carbonate precipitation (MICP) has emerged as a promising ground improvement technique, with MICP‐treated soils exhibiting substantial enhancements in strength. However, experimental results revealed significant variability in strength outcomes of MICP‐treated soils, even under identical treatment conditions and soil ...
Aoxi Zhang, Liang Wang, Wengang Zhang, Chaofa Zhao, Pan Zhang   +4 more
wiley   +1 more source

Fabrication and Growth Mechanism of Pumpkin-Shaped Vaterite Hierarchical Structures

, 2016
CaCO3-based biominerals usually possess sophisticated hierarchical structures and promising mechanical properties. Recent researches imply that vaterite may play an important role in the formation of CaCO3-based biominerals.
Mu Wang (235245), Guobin Ma (1711423), Yifei Xu (1711426)   +2 more
core   +1 more source

Size Control of Biomimetic Curved-Edge Vaterite with Chiral Toroid Morphology via Sonochemical Synthesis

Biomimetics
The metastable vaterite polymorph of calcium carbonate (CaCO3) holds significant practical importance, particularly in regenerative medicine, drug delivery, and various personal care products.
Ki Ha Min, Dong Hyun Kim, Seung Pil Pack
doaj   +1 more source

Effect of the tryptone concentration on the calcium carbonate biomineralization mediated by Bacillus cereus

Dyna, 2018
Five tryptone concentrations (0.2%, 0.4%, 0.6%, 0.8% and 1.0%) were evaluated on calcium carbonate biomineralization processes, using 0.5% of calcium acetate.
Gerardo Andrés Caicedo-Pineda, María Consuelo Prada-Fonseca, Ana Elisa Casas-Botero, Hader Vladimir Martínez Tejada   +3 more
doaj   +1 more source