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Is is posible a negative eelative predicted relevance q2 in PLS SEM?

I am working on a paper and need to calculate the q2 value in a model. However, I found that some of the values are negative. I am trying to interpret these negative values. Does anyone have any...

27 June 2024 1,225 0 View

What is the best book or guideline for fertilizer recommendations?

Would you please introduce a comprehensive book for fertilizer recommendation guidelines for agricultural and garden plants. In fact, I am looking for sources that express the amount of fertilizer...

26 June 2024 7,401 4 View

Which could be origin of symmetrical botryoidal mineralization?

Hi Me and my collegues found a strange rock aggregates here Lunda Sul, within Kalahari sand suite. Similar formations (ferricrite, ferricrete) are found within Lunda Sul, Angola on the surface...

24 June 2024 2,570 3 View

Is soil quality decreasing due to increased dependence on chemical fertilizers & if so, how can this be reversed & chemical & fertilizer affect soil?

Is soil quality decreasing due to increased dependence on chemical fertilizers, and if so, how can this be reversed and how do chemical and fertilizers affect soil?

23 June 2024 6,457 8 View

If I am doing a thematic analysis based on one group, is it okay to add insights from another group of interviewees?

I am doing a thematic analysis from interviewees done with my main group of interviewees. I also have done two interviews with another group of interviewees which provided interesting insights...

22 June 2024 3,378 6 View

Is there a specific FTIR figure if epoxy/ polysufide reinforced with Sic?

I have a copolymer if epoxy and rubber reinforced with Sic. I want a standard FTIR figure in transmittance mode.

21 June 2024 6,634 2 View

What is the impact of the devastating Syrian war on the environment in Syria?

Syria has been suffering from a senseless, devastating war for more than 14 years, in which the combatants did not respect any sanctity of humans, trees, animals, cities, archaeological,...

20 June 2024 8,561 3 View

What can a shift in Zn2p edge of ZnO/CuO nanocomposites mean in XPS?

I synthesized pure ZnO with a hydrothermal microwave method and decorated them with CuO with the incipient wetness impregnation method. The Zn2p edges of pure ZnO are at 1044.7 and 1021.6 eV...

19 June 2024 9,477 2 View

How to create ITO materials in FDTD?

Here are the ITO material parameters and the Drude model I found in an article, but I don't know how to import these parameters correctly into Ansys lumerical FDTD.The attached picture shows the...

19 June 2024 3,214 10 View

Alternative to Centrifuge software (Krumm, 1996)?

Dear colleagues, does anyone know of a suitable alternative for Centrifuge software (calculating settling time for grain size separation by centrifugation), preferably one running on Windows 10 or...

18 June 2024 7,119 0 View

Good day esteemed scholars. Still on the question on multiple linear regression analysis?

Three soil samples were used for the study and six equations were generated from the model which comprises of three for unsoaked CBR and the other three for soaked CBR. How would I know the best...

14 June 2024 6,242 1 View

If the sample is not that high with pollution, even if we make dilutions, is there a possibility to have the same color in COD determination?

Thank you for you help!

14 June 2024 517 1 View

I have a doubt in Rietveld refinement error bars? how to find out in GSAS II software?

In many papers, they have given the atomic position, lattice parameters, bond length, bond angle etc. values with (). what is the value of inside the bracket? If it is error bar how to find in...

14 June 2024 7,648 2 View

How Biophysical Composition Index (BCI) can be estimated using ArcGIS Pro? Any youtube video, tutorial, helpbook) please recommend?

Arcgis Pro software preferred.

13 June 2024 3,549 0 View

Can the debye temperature calculated using elastic sound velocity be used in Slack model to find Thermal conductivity?

I am trying to calculate lattice thermal conductivity using Slack model. In Slack model the lattice thermal conductivity is proportional to (Debye temperature)^3. Can I use the Debye temperature...

12 June 2024 1,763 1 View

How can I implement GAFF-LCFF forcefield in GROMACS?

Dear experts, I am new to molecular dynamics and can run simulations on small Liquid crystal systems using GAFF in GROMCS. I wanted to use the GAFF-LCFF forcefield (Optimization of the GAFF Force...

12 June 2024 4,588 2 View

How to normalize fluorescence measurements from different microplate runs?

I'm currently doing an experiment where I'm following the expression of a reporter gene (GFP) along growth using S. cerevisiae. The cultivations last around 48 hours. I observed that the results...

11 June 2024 6,015 3 View

What could be the possible reason of a sudden fluctuation in a stable RMSD plot of a protein-protein simulation?

I have run MD simulation of a protein-protein docked complex for 50ns. The RMSD plot obtained from the simulation is attached here. The RMSD plot shows a stable trajectory for entire simulation,...

10 June 2024 7,911 1 View

Why Hydrogen is not detecting in GC?

I'm working on photocatalytic water splitting, and the material is zinc ferrite. After the light exposure to the photocatalyst solution, the produced gas was collected using water displacement and...

09 June 2024 1,280 3 View

Can the mechanism of time dilation and length contraction of the special relativity be explained?

It is generally believed that time dilation and length contraction is a geometric effect, is there anyone has tried to explain the time dilation and length contraction effect in a geometric...

06 June 2024 1,637 6 View

What way appraisal is critical for hydrocarbon field to maximise profit from its production ??

Appraisal is is one of the five stages of an oil field over its span of life. Worldwide oil and gas companies are spending billions of dollars in collecting data/ information after discovery of...

26 May 2024 6,170 0 View

Main steps for coupling between uncertainty code and a thermal hydraulic code?

Hello every one, I want to make a coupling between the uncertainty code DAKOTA and a thermal hydraulic code (Relap5, PARET,...). But what i know until know, to make a coupling, we have to perform...

09 May 2024 4,989 0 View

How can I bring my creative ideas to reality and what is required to transform a business-level strategy from an idea into reality?

How can I bring my creative ideas to reality and what is required to transform a business-level strategy from an idea into reality?

08 May 2024 3,668 8 View

Hi, does anyone has example Silvaco code text for Graphene field effect transistor?

I would like to learn the details coding GFET through SILVACO but need reference. Hoping anyone could help me

07 May 2024 7,704 1 View

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