19 Questions 8 Answers 0 Followers
Questions related from Joseph Ackermann
Dear all, How can I find what is the viscosity of a solution of water with 1-2 mol/L of sorbitol please at 20°C ?
24 April 2023 2,839 1 View
Hello :) Why at the beginning at least tumors grow without vasculature ? When healthy tissues grow, the vasculature grows as well, so why are tumour cells different from healthy tissues ? Thank...
03 January 2022 5,549 5 View
Hello everyone, Would you know any work where Smoluchowski equation for aggregation of particles is used with a finite number of particles ? Meaning in general the number that is computed is the...
08 March 2021 3,917 2 View
Hi ! I'd like to implement numerically Smoluchowski aggregation equation (the population balance equation) for the aggregation-fragmentation for diffusing particles, but for a not so high number...
28 January 2020 7,802 1 View
Hi ! I'm trying to model a three phase flow in Comsol multiphysics. So I used the "ternary phase field model" but I'm very skeptical about it since it couples the mobility and the capillarity (I...
30 July 2019 9,138 0 View
Hello, There is a lot of litterature about the composition of the extracellular matrix, and about the roles of ECM in adhesion, signaling, etc... But I didn't find much about the mechanisms...
02 June 2019 1,295 1 View
Hi ! Does the fragility of cells to hypoxia of anoikis depends on their history ? Meaning if some cells are exposed to very low levels of oxygen or are put without ECM, and then put again in...
21 May 2019 9,727 0 View
Hi ! I've asked myself this question while preparing a presentation about multicellular-spheroids. As reported in ovarian cancer, spheroids seem to appear in some cancer during metastasis. So I...
16 May 2019 9,349 3 View
Hi ! I was wondering wether immune cells were adhering to each other or could form tissues in vivo. I'm more specifically interested in macrophages. Thank you
15 May 2019 6,474 4 View
Is there a theory describing the way micelles or liposomes or bubbles coalesce in air and the dynamics ? In general I'm interested in the coalescence of spherical objects made of a monolayer with...
01 January 1970 2,653 1 View
Are there some example of correlation in the cell cycle for a population of cells ? I mean if you have a tissue or an aggregate, or any population of cells are cells which are in contact divide in...
01 January 1970 6,643 1 View
Hello Using the finite element software Comsol multiphysics, I tried to recover the Von Karman oscillatory modes by introducing compressive stress in the X direction for a thin plate in 3D whose...
01 January 1970 3,878 1 View
Dear all, In the Kobayashi phase field model for dendrites, is it possible to modulate the density of the branches please ? I mean if for instance a dendrite is of radius R in 2d, and the dendrite...
01 January 1970 6,328 0 View
Dear all, PIV is in general equivalent to the averaged flow velocity. But what can be expected in presence of strong fluctuations/noise ? Could PIV be significantly different from the flow...
01 January 1970 7,829 4 View
Hi ! I'd like to know if hypoxic cells communicate with the surroundings cells (that are also hypoxic or not hypoxic). I mean I assume they release signals that could lead to angiogenesis or...
01 January 1970 3,056 4 View
Tight junctions (TJ) are the structure of scaffolding proteins separating the apical and baso-lateral domains in an epithelium. I assume that during the growth of this epithelium, cells have to...
01 January 1970 3,116 0 View
Dear all, I am wondering to if there are clear types of equations to which one has to couple the phase field equation : d\phi/dt= - \delta F/\delta \phi where F is an anisotropic energy such as...
01 January 1970 2,335 0 View
In vitro, in plate wells for instance, some cells do cyst and others do spheroids, and others don't make up anything. So it has been shown that the substrate is very important. But let's assume...
01 January 1970 2,049 0 View
Hello, I'm looking for a way to add surface tension to an hyperelastic material (in spherical symmetry). I'm working on biological growth. I tried but I have the issue that I can't avoid the...
01 January 1970 7,408 1 View
