What are the saturated salt solutions that can give specific relative humidity of 35%, 65% and 95% for conditioning wood specimens?

Due to the unavailability of climate rooms, I want to carry out an experiment that require the use of certain saturated salt solutions especially those that can condition the wood specimen to 35%,...

25 February 2021 8,139 1 View

What's the concentration recommend for recombinant protein use in western blotting?

I'm currently working having problem with the concentration for recombinant protein use in western blot, the one been used is Recombinant Human CD19 Fc Chimera Protein-rndsystem which does not...

24 February 2021 8,514 3 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

How to perform Haldane correction on SPSS?

I was wondering if anyone knew how to perform the Haldane correction for SPSS (this is the definition of the correction -...

21 February 2021 2,882 1 View

How can I multiply values with standard distribution and with triangular distribution?

I am calculating emissions considering the uncertainty of the data to do Monte Carlo simulation. Some variables such as yields have normal, lognormal or even uniform distributions. These must be...

03 February 2021 6,318 5 View

Does Location Map of Informal Settlements in South Africa exist?

I urgently need a map that shows the point locations of informal settlements in South Africa. I am currently working on a study that seeks to relate protests location to the location of informal...

02 February 2021 4,113 7 View

Meta-analysis of different studies that utilise the same public databases for cases?

I am in the process of conducting a meta-analysis assessing effect of adjunct radiotherapy on overall survival. Some of the final studies included for analysis use the same national databases for...

02 February 2021 9,211 2 View

What can I do if DNA OD260/280 is either 1.6 or higher than 3?

26 January 2021 7,830 4 View

Any suggestion on the methodology for Soil depth and ph mapping using machine learning ?

Hello, Please, I need your opinion. I want to map the depth of 20,000 hectares of land. I have sampling points of 20,000 with their respective depth attributes and photos of the topsoil(less than...

31 December 2020 4,325 3 View

How To Determine Raster-Based Path Radiance?

I am working on aerosol retrieval using a radiative transfer equation with Landsat 8 OLI, and I am having difficulty determining the raster-based path radiance. I am using the formula by Felix C....

11 December 2020 6,662 2 View

What are some properties of a proton in a static B-field?

I have some basic questions about the behavior of a charged particle in a static B-field. 1. Without a B-field, the particle has spin, with random orientation and spin frequency. a) What...

24 January 2021 1,389 3 View

How can I obtain the Eneggy spectrum of particules simulated with EPOCH code, using MATLAB?

I wanna to have proton energy according to their number ( E=f(N) ).

23 January 2021 2,788 2 View

What is the use of Carbon and Proton NMR Spectrum in Peptide Analysis?

Am in Peptide / Protein Research, may i know what useful analytical information we are getting from 13C & 1H NMR spectroscopy analysis? Somebody getting NMR for smaller proteins, any useful...

05 January 2021 1,196 7 View

What are the minimum amount of polymer samples needed for 1H-NMR and 13C-NMR?

I'm working on polymer. I've tried 8mg sample in 0.6 ml solvent for 13C NMR but I got a high noise spectrum. Any specific amount for polymer sample in running NMR ?

20 December 2020 506 4 View

Modelling of proton disorder from SCXRD data?

Hi Is it possible to model a proton disorder from the single crystal X-ray diffraction data? We don't have access to neutron diffraction. #crystallography #SCXRD #refinement of structures Thanks

12 December 2020 9,507 3 View

Why does the command ''Topshim'' fails ?

Hello, I'am trying to run the 1H NMR spectrum of an ionic solution (Bromide Salt). the solution is too viscous so I had to randomly add a certain volume of deuterated chloroform, and then...

30 November 2020 8,569 1 View

1H NMR of alkoxides in CD2Cl2?

Hello! I am planning to get an alkoxide which should be potentially soluble in CH2Cl2. Do you think it is okay to use CD2Cl2 to get an NMR spectrum of the alkoxide? I am wondering if RO- anion...

25 November 2020 1,819 1 View

If opposite charges attract each other, then why do neutrons and protons bind with each other, whereas electrons surround them in an atom?

According to science, like charges repel each other and opposite charges attract each other. But if you observe the structure of an atom, neutrons(neutral), and protons(positive) bind tightly with...

23 November 2020 8,881 7 View

I need help for an experiment I propose. Can somebody recommend articles describing beam-splitters for charged particles?

An experiment that I propose contains a beam-splitter for protons. There is plenty of articles in the literature, about atoms interferometry. But, except for electron interferometry, I don't see...

22 November 2020 7,138 3 View

Can I analyse NGS DATA from an EXCEL spreadsheet?

Hi, I have Fold expression of RNAseq data obtained from Ion Proton sequencer and got the fold change data with mean in an excel sheet. now can I analyse this fold change data using any...

20 October 2020 2,240 3 View