Results 21 to 30 of about 5,689,979 (299)

Cell cycle length, cell size, and proliferation rate in hydra stem cells [PDF]

open access: yes, 1990
We have analyzed the cell cycle parameters of interstitial cells in Hydra oligactis. Three subpopulations of cells with short, medium, and long cell cycles were identified. Short-cycle cells are stem cells; medium-cycle cells are precursors to nematocyte
Bode   +34 more
core   +1 more source

Nonlinear cellular dynamics of the idealized detonation model: Regular cells [PDF]

open access: yes, 2007
High-resolution numerical simulations of cellular detonations are performed using a parallelized adaptive grid solver, in the case where the channel width is very wide.
Quirk, J.J., Sharpe, G.J.
core   +1 more source

PDE models of adder mechanisms in cellular proliferation [PDF]

open access: yes, 2020
Cell division is a process that involves many biochemical steps and complex biophysical mechanisms. To simplify the understanding of what triggers cell division, three basic models that subsume more microscopic cellular processes associated with cell ...
Chou, Tom   +2 more
core   +2 more sources

Cell Cycle Arrest by Supraoptimal Temperature in the Alga Chlamydomonas reinhardtii

open access: yesCells, 2019
Temperature is one of the key factors affecting growth and division of algal cells. High temperature inhibits the cell cycle in Chlamydomonas reinhardtii.
Vilém Zachleder   +3 more
doaj   +1 more source

Expansion of the Inguinal Adipose Tissue Depot Correlates With Systemic Insulin Resistance in C57BL/6J Mice

open access: yesFrontiers in Cell and Developmental Biology, 2022
To accommodate surplus energy, the adipose tissue expands by increasing adipocyte size (hypertrophy) and number (hyperplasia). The presence of hypertrophic adipocytes is a key characteristic of adipose tissue dysfunction. High-fat diet (HFD) fed C57BL/6J
Claes Fryklund   +6 more
doaj   +1 more source

Revisiting the hypothesis of an energetic barrier to genome complexity between eukaryotes and prokaryotes [PDF]

open access: yesRoyal Society Open Science, 2020
The absence of genome complexity in prokaryotes, being the evolutionary precursors to eukaryotic cells comprising all complex life (the prokaryote–eukaryote divide), is a long-standing question in evolutionary biology.
Katsumi Chiyomaru, Kazuhiro Takemoto
doaj   +1 more source

Cell Size: Fat Makes Cells Fat [PDF]

open access: yesCurrent Biology, 2017
Nutrients are required for the multiple biosynthetic pathways that result in cell growth, and faster growth due to increased nutrient supply results in larger cell volume. A new study demonstrates that fatty-acid availability limits growth rate and cell envelope capacity, revealing that fatty-acid synthesis is the primary determinant of cell size in ...
Lisa, Willis, Kerwyn Casey, Huang
openaire   +2 more sources

Extending the Monod model of microbal growth with memory

open access: yesFrontiers in Marine Science, 2022
Monod’s model describes the growth of microorganisms using a hyperbolic function of extracellular resource concentration. Under fluctuating or limited resource concentrations this model performs poorly against experimental data, motivating the more ...
Mohammad M. Amirian   +2 more
doaj   +1 more source

Cell Size Regulation in Mammalian Cells [PDF]

open access: yesCell Cycle, 2007
The regulation of cell growth and proliferation is fundamental for animal development and homeostasis but the mechanisms that coordinate cell growth with cell cycle progression are poorly understood. One possibility is that "cell-size checkpoints" act to delay division until cells have achieved a minimal size or mass however, the existence of such ...
Pedro, Echave   +2 more
openaire   +2 more sources

What programs the size of animal cells?

open access: yesFrontiers in Cell and Developmental Biology, 2022
The human body is programmed with definite quantities, magnitudes, and proportions. At the microscopic level, such definite sizes manifest in individual cells - different cell types are characterized by distinct cell sizes whereas cells of the same type ...
Shixuan Liu   +8 more
doaj   +1 more source

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