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Crystal structure of -xylene@silicalite-1.
Acta Crystallogr E Crystallogr Commun
January 2025
School of Chemical and Biological Engineering, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea.
The crystal structure of a highly loaded complex of silicalite-1 (SL-1) with eight mol-ecules of -xylene per unit cell has been solved by single-crystal X-ray diffraction. In the crystal, four symmetrical SiO·2CH subunits per unit cell are observed. The -xylene mol-ecules sit at two different positions within the SL-1 channels.
View Article and Find Full Text PDFThe chromatin of the centromere provides the assembly site for the mitotic kinetochore that couples microtubule attachment and force production to chromosome movement in mitosis. The chromatin of the centromere is specified by nucleosomes containing the histone H3 variant CENP-A. The constitutive centromeric-associated network (CCAN) and kinetochore are assembled on CENP-A chromatin to enable chromosome separation.
View Article and Find Full Text PDFLong-range directional growth of neurites induced by magnetic forces.
Acta Biomater
January 2025
School of Life Sciences, Keele University, Staffordshire, UK. Electronic address:
The ability to control the growth and orientation of neurites over long distances has significant implications for regenerative therapies and the development of physiologically relevant brain tissue models. In this study, the forces generated on magnetic nanoparticles internalised within intracellular endosomes are used to direct the orientation of neuronal outgrowth in cell cultures. Following differentiation, neurite orientation was observed after 3 days application of magnetic forces to human neuroblastoma (SH-SY5Y) cells, and after 4 days application to rat cortical primary neurons.
View Article and Find Full Text PDFThe Role of Friendship in Mediating and Moderating the Relationship Between Exposure to Gendered Racism and Mental Health among Young Women of Color.
J Youth Adolesc
January 2025
Department of Psychology, Fordham University, 441 East Fordham Road, Dealy Hall, Bronx, NY, USA.
Young women of color frequently face discrimination, reflecting the intersecting societal influences of sexism and racism. Although friendships play a significant role in women's lives, there is a lack of research on the role of friendships in navigating exposure to gendered racial discrimination (in-person and social media) and associated mental health. This study investigated the extent to which the content of friendship conversations (i.
View Article and Find Full Text PDFDistorting crack-front geometry for enhanced toughness by manipulating bioinspired heterogeneity.
Nat Commun
January 2025
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei, Anhui, China.
Control of crack propagation is crucial to make tougher heterogeneous materials. As a crack interacts with material heterogeneities, its front distorts and adopts complex tortuous configurations. While the behavior of smooth cracks with straight fronts in homogeneous materials is well understood, the toughening by rough cracks with tortuous fronts in heterogeneous materials remains unsolved.
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