How To Run Granger Test with Panel Data? Do you have a practical guide?

Hello together, I would like to perform the Granger Test with my panel data. I am investigating 40 banks and examining the impact of digitization on ROA. Specifically, I have the variable...

01 December 2020 3,642 5 View

How to crystallize curcumin from ethanolic turmeric extract?

I'm having difficulty recovering curcumin from my ethanolic extract. I tried reducing its solubility in the solution by slowly adding water, but the solid just crashed out of the solution in very...

03 September 2020 3,020 5 View

How to control the optimization step size in Gaussian?

I would like to perform a geometry optimization for a weakly bound methane dimer structure with Gaussian 16. During this process, the Newton-Raphson step size should be controlled such that its...

09 July 2020 1,956 2 View

Is it natural to observe shifts in spin-orbit splitting values of an element for different stoichiometries or compounds containing that element?

Hello, In XPS measurements, I am observing consistent shifts in spin-orbit splitting values for different oxides of the same base element. I'm being told by many that this is not possible, that...

25 May 2020 4,389 3 View

How can we validate intrathecal administration in mouse spinal cord?

Beside color marker injection, is there any pharmacological agent (beside morphine) that induce a particular phenotype (morphine Straub tail) in mice? thanx in advance Roland

14 November 2019 5,968 4 View

Has anyone carried out public health expenditure reviews on spending on nutrition in their country ?

If you have carried out national budget analysis for nutrition expenditure I would love to read your research findings

03 October 2019 5,213 2 View

What technique can be used for imaging wet hydrogels?

I'm working on alginate-based hydrogels and I want to observe the microstructures (porosity, roughness, etc.). The hydrogels were produced by gelation in aqueous calcium chloride. SEM is out of...

30 August 2019 2,863 4 View

Does anyone know how and can share how to suspend and spray dry tungsten carbide in an aqueous medium?

I am looking to create a slurry of tungsten carbide to generate press ready powders in order to fully density our laboratory scale small parts for testing. If anyone can share how to suspend WC...

12 June 2019 5,630 3 View

How is from your point of view the web presence linked with social media activities in a B2B environment?

First research in my case study showed a strong relationship of the web presence and social media in B2B. What is your experience? Thanks, Roland

28 January 2019 5,710 3 View

What is the best strategy to launch a technical product that solves an educational problem?

We have designed and launched a research platform that enhances the student - supervisor relationship during a research product. The platform encapsulates the process of conducting and managing...

23 January 2019 6,221 2 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'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

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 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

Have someone successfully used the ER alpha (Santa Cruz sc-8002) antibody in immunostaining ?

Santa Cruz now recommends this new antibody (F-10) but I can't find a publication using this reference. I'm working on human et non human primate hypothalamus and so far, it doesn't work. Is...

02 March 2021 10,003 2 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View