What are the best references for an approach to teaching Differential Equations?

Differential equations are known to be potential tools for modeling and predicting recurrent phenomena in time and space, whether simple or more elaborate models. In this sense, how to approach...

18 December 2020 1,750 3 View

Best purification method for recombinant protein in BL21?

Hi I need to purify a recombinant protein (IL6 21kDa). It's been produced in E.coli BL21 with a T7 expression vector, but it does not have a tag as yet. I was thinking of adding a his-tag and...

09 December 2020 2,200 8 View

Recombinant Interleukin 6 western blot, non specific bands?

Hi I've been trying to produce some recombinant human Interleukin 6. I sub-cloned the gene for human IL6 into a Promega T7 Flexi vector (native gene no tag yet) and confirmed sequencing and...

09 December 2020 2,340 4 View

How many journal articles should come out of a doctoral thesis?

Is it normal if I publish my doctoral thesis into only one journal article (since my doctoral thesis will be data-heavy and theory-light)? Or are doctoral theses expected to be equivalent to 3-4...

01 December 2020 3,803 14 View

Can the potential of LIPIDMICS improve the diagnosis and understanding of metabolic changes in various neurodegenerative disease (PD, HD, AD, MS, etc?

08 November 2020 7,209 1 View

Can I compare data from ion exchange membranes with data from ion exchange resin when determining nutrient supply rates in soils?

Hi everyone, I am trying to decide if I can compare nutrient supply rates between two different methods of collection. Method A uses ion exchange membranes and method B uses ion exchange resin in...

23 September 2020 4,535 1 View

Why would a validation error (confusion) matrix return null in Google Earth Engine?

I am working on validating a collection of images from a time series in Google Earth Engine and the confusion matrix that results from validation of the trained image v.s. the landcover classes...

09 September 2020 7,246 3 View

How can I increase the length of DNA fragments recovered from QIAamp DNA Micro Kit?

Hi everyone. I'm performing DNA extractions for pools of ~10 individual Daphnia magna (water fleas) using the Qiagen QIAamp DNA Micro Kit. I use a pestle to homogenise the Daphnia before entering...

07 September 2020 9,956 1 View

No title

Nutritional science has provided functional foods with the required amounts of natural antioxidants, vitamins, fats, proteins, polyphenols, carbohydrates, and other components required to maintain...

03 June 2020 7,377 1 View

How do I choose an appropriate statistical test in SPSS?

03 May 2020 1,018 3 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

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 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