During geometry optimization of a metal oxide surface using dmol3, I received an error' Overlap matrix is not positive definite' and the job failed. Can you please help me with the reason of this error and suggest some way to fix it.
Any advanced diagnostic technique to test skin health or a condition non-invasively? What is the efficacy of the same, and how can we determine the cost of testing with this technique?
04 September 2022 2,258 3 View
I have written a comprehensive survey and I wish to communicate it to SCI journal but most of the journals are open access. Kindly suggest some journals. That would be really helpful..!!
29 March 2022 9,440 2 View
Do we need to do a J-model test before preparing the phylogenetic tree from RAxML or after it is prepared? In both the conditions what are the values of different parameters we need to add. Please...
11 June 2021 4,282 2 View
I'm trying to use this DAC technology in the aviation industry. Can anyone suggest some ideas on how to do so? I too have some ideas and am willing to work on them. My work will be designing a...
02 January 2021 5,598 2 View
Basically, I wanted to ask if we should prepare these components in RNAse free water and use directly or should we prepare them first and then autoclave them ? If we autoclave, wont it chnage the...
04 December 2020 4,801 2 View
Hello, I am using Neon transfection system to transfect siRNA into suspension cell line. When calculating siRNA conc., does it have to based on tip volume or final volume. Although, i have an...
18 July 2018 5,948 2 View
are there any experiments which can be done to identify the divalentmetal ion bound to the protein? Any chemical or biophysical tools which can be used to identify thedivalent metal ion bound to...
26 May 2018 348 9 View
I am trying to run BoltzTap for different electron and hole concentration but I can't seem to figure out how to do the same.. As far as I have read, I know the case.intrans file needs to be...
18 March 2018 2,203 1 View
So, at lower concentration of polymerase 20nM , the polymerase shows only 40% incorporation . The conc of DNA 50nM, dNTP 100 micromolar. Can I go for higher concentration of polymerase to show...
07 January 2018 1,196 1 View
Hi, we do assays using FAm labelled RNA, and I use such oligos to do my terminal transferase assay. We want to see addition of one nt by enzyme( so in short we want to see that a RNA primer has...
01 December 2016 4,307 1 View
I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...
09 August 2024 5,048 2 View
One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...
08 August 2024 6,690 1 View
Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...
07 August 2024 269 3 View
Have you ever seen a LC-MS/MS method uses both internal standards and external standards (in matrix matching purpose) but the concentrations of internal standards are outside the calibration curve...
05 August 2024 3,084 6 View
- The Existence/Uniqueness of Solutions to Higher Order Linear Differential Equations - Higher Order Homogenous Differential Equations - Wronskian Determinants of $n$ Functions - Wronskian...
03 August 2024 2,366 0 View
I need to lyse and homogenise mouse tissues. So far I have experimented with liver and lung tissue, using matrix D. The liver was completely lysed with 6 repetitions of the standard program, but...
31 July 2024 9,186 0 View
We assume this to be true. Science leaves the era of mathematics and enters the era of matrix mechanics and the turning point is the discovery of numerical statistical theory called Cairo...
31 July 2024 3,900 2 View
I am new to Micromechanics and having similar problem with understanding the implementation of the formula's. I would appreciate if anyone can guide me on how to go about getting a scalar value...
30 July 2024 969 0 View
Sure, here is the translation: I have a 3D orthogonal woven composite structure where warp, weft, and binder yarns are oriented in three directions. After modeling these yarns and the matrix in...
28 July 2024 8,169 0 View
We assume that we can find a statistical matrix mechanics equivalent to Schrödinger's PDE in two consecutive steps: i-Transform the Schrödinger PDE describing the wave function Ψ into its square...
27 July 2024 3,959 4 View