Results 101 to 110 of about 1,011,446 (267)

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Minimal Periodic Foams with Equal Cells

open access: yes
We show existence of periodic foams with equal cells in $\mathbb R^n$ minimizing an anisotropic perimeter.
Cesaroni A., Novaga M.
openaire   +2 more sources

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Non-collision solutions for a class of planar singular Lagrangian systems

open access: yesElectronic Journal of Differential Equations, 2000
In this paper, we show the existence of non-collision periodic solutions of minimal period for a class of singular second order Hamiltonian systems in ${R}^2$ with weak forcing terms.
Morched Boughariou
doaj  

Coping Stress pada Narapidana Pelaku Pembunuhan Tidak Berencana di Lembaga Pemasyarakatan Perempuan Kelas II A Semarang

open access: yesGuidena
Prisoners spend a certain period in prison and must live in institutions with minimal activities. The longer the punishment period, the higher the stress conditions experienced by prisoners.
Adriani Maria Salean   +1 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

Properties of periodic Dirac–Fock functional and minimizers

open access: yesJournal de Mathématiques Pures et Appliquées
Existence of minimizers for the Dirac--Fock model in crystals was recently proved by Paturel and Séré and the authors \cite{crystals} by a retraction technique due to Séré \cite{Ser09}. In this paper, inspired by Ghimenti and Lewin's result \cite{ghimenti2009properties} for the periodic Hartree--Fock model, we prove that the Fermi level of any periodic
Catto, Isabelle, Meng, Long
openaire   +3 more sources

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