Color of spiro-ometad film?

What does the color of a spiro-ometad film indicate? I got purple, green, red, even black color of the spiro film. Is there anything we can get from the preliminary color analysis(e.g. oxidation...

21 February 2021 1,831 4 View

Dissolving AN-MA-IA copolymer in 50 % w/w sodium thiocyanate water solution. What is the white residue forming after polymer dissolved?

Dear colleagues! Recently I tried to dissolve commercially available samples of PAN precursors (acrylonitrile-methyl acrylate-itaconic acid terpolymers) in water solutions of sodium thiocyanate...

17 October 2020 6,083 4 View

What is the reason of poor resolution of AFM images of TiO2?

We prepare TiO2 samples using Titanium Isopropoxide, Ethanol, and Glacial Acid; We increase the amount of ethanol to decrease the thickness of the layer. However, the layers with thicknesses...

30 August 2020 4,031 13 View

Band in the negative control of qPCR product gel?

I persistently get a band in the negative control when trying to isolate RNA from cell samples and am wondering if it's contamination in the experiment, genomic contamination, or just the...

02 August 2020 6,486 1 View

If G is a tree, then L(G)D(G)L(G)=-2L(G). Is the opposite true?

It is well known that if graph G is a tree, then the following identity holds: LDL=-2L, where L is the Laplacian matrix of tree G, and D is its distance matrix. Is the opposite true? That is, if...

28 May 2020 4,298 3 View

Miocene green algae in thin sections?

Dear colleagues In attached photos, you will find green algae (?) from the Miocene glendonite-bearing rocks of Sakhalin (SEM photos of thin sections) Is anybody can help with identification of...

02 January 2020 4,041 3 View

Why images in scanning electron microscope(sem) got bright stripes?

why images in scanning electron microscope(sem) got bright stripes? an image is attached. it does not look like a material related contrast(polymers). it does not disappear with current, voltage...

02 January 2020 2,404 4 View

How to model Background Seismicity in EZ FRISK?

does anybody know how to model background seismicity in EZ FRISK 7.65? I understand we have to define it as grid source, but I don't quite understand the input parameter required, it requires...

03 September 2019 819 1 View

Wrong ethanol IR spectra?

I've measured three different ethanol samples in my IR spectrometer, whose spectra are attached (one in absorbance and another in transmittance units). The measurement was made with liquid ethanol...

08 May 2019 5,677 9 View

How can I pull micropiptte (1.5mm)with Narishige Puller PC-10 for patch clamp?

Also i have the puller p-2000 , but its features do not allow to work with 1.5mm glass

06 May 2019 8,024 3 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

Dear all, I was wondering if anyone knows whether MGLtools and Autodock can run on Mac OS?

I have tried to download the 64-bit version of MGLtools however, as many times as I have downloaded and uninstall the programs, an error arises that the app needs to be updated. Thank you.

03 March 2021 5,997 2 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

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 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

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

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02 March 2021 932 1 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

APA 7th In-Text citations with two references with three authors with the same surname, but four different author?

I have an issue with APA 7th in-text citation. II have two papers where the first three authors are the same, and the fourth is different. I am using the Mendeley desktop app, and automatically it...

02 March 2021 790 3 View