How to prepare a thin polymer film by post-polymerization/crosslinking?

24 February 2021 2,362 5 View

Mixed ANOVA or Multilevel modeling?

Hi everyone, I'm having some questions about choosing the right test for my experiment and I hope I can find help here! Here are the settings of the experiment: 1. participants are randomly...

14 February 2021 1,028 4 View

How to do variation partition for a distance matrix for microbial ecology?

I have bacterial, fungal, and protist OTU table. I want to know to what extent protist and fungi distribution can explain the bacteria distribution. I only know Mantel test could do a correlation...

11 January 2021 4,164 2 View

Are there any method to detect implanted stem cells?

Dear, We developed a microcarrier that was pre-seeded hUC-MSCs to repair a rat bone defect. However, we didn't use GFP or Luciferin to track cell survival. If there's any way to identify the...

15 December 2020 6,065 3 View

How to characterize the dispersion of aluminum oxide in Al matrix composite which reinforced by alumina during the powder metallurgy?

Now we could characterize the disperion of Al2O3 in AMCs (pure Al reinforced by Al2O3 ) after sintering. But the process of powder metallurgy has a lot of steps, which take long time. The cycle...

08 November 2020 5,244 3 View

Is that possible the filter of flow cytometry was failed so I got those data using FL1 vs FL2 and FL1 vs FL3?

The cells were expressing GFP and also incubated with PI for dead cells detection. This is my first-time using this BD Accuri C6 and I'm not sure if I need to set compensation (I tried to follow...

01 November 2020 8,360 3 View

What if the abbreviations of two technical terms in the manuscript are the same?

I'm wrting an article, there are two terms "Carboxymethylcellulose" and "Critical Micelle Concentratio" both have the abbreviations of "CMC". How should i distinguish them?

23 June 2020 2,115 5 View

ImzMLConverter installation & running issues?

Hi Everyone, Did anyone have a similar issue when install and run imzMLConverter? I followed the instruction on https://www.cs.bham.ac.uk/~ibs/imzMLConverter/ and used the command it provides....

23 May 2020 3,936 3 View

How to revise survey items based on unexpected EFA results?

Hi, there. A few days ago, I posed a question about factor analysis of survey results, but I left many important details unspecified. HERE is the more detailed one. I develop a theoretical model...

06 May 2020 4,937 10 View

Many cases of identical answers to consectutive questions.How to revise survey items?

Hi, there. I am working on my Ph.D dissertation. I have run a factor analysis of 56 items with maximum likelihood and direct oblimin method. It turns out that only one factor can be extracted...

25 April 2020 6,267 10 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

Unknown debris sheets observed in cell culture flasks?

Hi, We culture neural progenitor cells in T175 culture flasks coated with PLO-Laminin. We have successfully grown these cells with our protocol for months. Recently, we observed large sheets...

25 February 2021 3,443 4 View

How to search for crystal structure for material with atomic position labelled?

I am using the crystallographic open database and materials project to search for cif file but the exact structure is not mentioned or how can I deduce that the given structure and atomic position...

23 February 2021 6,723 2 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View