Recipe for old qiagen DNA extraction buffer AP2?

Hi there, I'm looking for the recipe for a buffer no longer made by qiagen, but that i need for a procedure i'd like to carry out. I'd like to follow the extraction procedure laid out in the...

17 January 2021 8,496 1 View

Where can I go to seek out IPE Research Grants?

03 January 2021 7,403 2 View

Any advice on running quantum espresso on a single Imac??

I have been using VASP for years now and wanted to try out QE on my home IMac since it's open source. Does anyone have any advice?? I recently wiped and reinstalled the OS on the mac so it is...

29 September 2020 5,195 2 View

Why do different methods in python, result in different values of zero??

I am using numpy in python along with the linalg package to solve for the eigenvalues and eigenvectors of a 2x2 matrix. I also did this by hand, and coded the brute-force algebra step by step to...

23 March 2020 9,411 2 View

How to rotate POSCAR file to face 111 direction??

I am familiar with VESTA and it's functionality to rotate a cell from a POSCAR (from VASP). I am trying to rotate a cubic unit cell (CH3NH3PbI3) to face the 111 direction but when i use the...

04 April 2019 4,707 3 View

What activity would you use to measure socio-emotional literacy skills?

I am in the process of creating a tool to measure digital literacy and I would like some suggestions on what activity could be used to measure socio-emotional literacy skills. Any suggestions...

19 November 2018 6,790 3 View

Labeled standards for multi-residue pesticide GCMS analysis?

I will be analyzing various (~25) pesticides in precipitation, extracting with SPE and analyzing with GCMS. Will I need a separate labeled internal/surrogate standard for each compound, or would...

04 October 2017 9,465 5 View

How would you measure the readability of a program?

28 April 2016 1,231 2 View

How would you measure the readability of a program?

03 April 2016 6,036 2 View

Is there an ideal ratio between a training set and validation set? Which trade-off would you suggest?

I have studying the size of my training sets. I am wondering if there is an "ideal" size or rules that can be applied. I am thinking of a generative hyper-heuristics that aim at solving np-hard...

15 March 2016 3,923 24 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

The procedure compute?

02 March 2021 5,204 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

If you haven't computer? how you show the photons to pupils?

Educational Process

01 March 2021 1,827 1 View