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1. Grid cells, border cells, and discrete complex analysis

   https://doi.org/10.3389/fncom.2023.1242300  

   Dabaghian, Yuri (October 2023, Frontiers in Computational Neuroscience)

   Wu, Si (Ed.)

   We propose a mechanism enabling the appearance of border cells—neurons firing at the boundaries of the navigated enclosures. The approach is based on the recent discovery of discrete complex analysis on a triangular lattice, which allows constructing discrete epitomes of complex-analytic functions and making use of their inherent ability to attain maximal values at the boundaries of generic lattice domains. As it turns out, certain elements of the discrete-complex framework readily appear in the oscillatory models of grid cells. We demonstrate that these models can extend further, producing cells that increase their activity toward the frontiers of the navigated environments. We also construct a network model of neurons with border-bound firing that conforms with the oscillatory models. 

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2. Contribution of plasma cells and B cells to hidradenitis suppurativa pathogenesis

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   Gudjonsson, Johann E.; Tsoi, Lam C.; Ma, Feiyang; Billi, Allison C.; van Straalen, K.R.; Vossen, A.R.J.V.; van der Zee, H.H.; Harms, Paul W.; Wasikowski, Rachael; Yee, Christine M.; et al (October 2020, JCI Insight)

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3. Tissue Engineering Under Microgravity Conditions; Use of Stem Cells and Specialized Cells

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   Grimm, Daniela; Egli, Marcel; Krüger, Marcus; Riwaldt, Stefan; Corydon, Thomas J; Kopp, Sascha; Wehland, Markus; Wise, Petra; Infanger, Manfred; Mann, Vivek; et al (June 2018, Stem Cells and Development)
4. Morphology and Transport in Eukaryotic Cells

   https://doi.org/10.1146/annurev-biophys-111121-103956  

   Agrawal, Anamika; Scott, Zubenelgenubi C.; Koslover, Elena F. (May 2022, Annual Review of Biophysics)

   Transport of intracellular components relies on a variety of active and passive mechanisms, ranging from the diffusive spreading of small molecules over short distances to motor-driven motion across long distances. The cell-scale behavior of these mechanisms is fundamentally dependent on the morphology of the underlying cellular structures. Diffusion-limited reaction times can be qualitatively altered by the presence of occluding barriers or by confinement in complex architectures, such as those of reticulated organelles. Motor-driven transport is modulated by the architecture of cytoskeletal filaments that serve as transport highways. In this review, we discuss the impact of geometry on intracellular transport processes that fulfill a broad range of functional objectives, including delivery, distribution, and sorting of cellular components. By unraveling the interplay between morphology and transport efficiency, we aim to elucidate key structure–function relationships that govern the architecture of transport systems at the cellular scale. 

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5. E_2-cells and mapping class groups

   https://doi.org/10.1007/s10240-019-00107-8  

   Galatius, Søren; Kupers, Alexander; Randal-Williams, Oscar (June 2019, Publications mathématiques de l'IHÉS)

   We prove a new kind of stabilisation result, “secondary homological stability,” for the homology of mapping class groups of orientable surfaces with one boundary component. These results are obtained by constructing CW approximations to the classifying spaces of these groups, in the category of E2-algebras, which have no E2-cells below a certain vanishing line. 

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