Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

Hye All, Greetings, How can i get surface run off water data?

this is for my thesis project, so this is the title of my thesis, the effect of land use on hydrological components in Muar, Johor, Malaysia any ideas, guidance, and suggestions all? Thank You, :)

02 February 2021 265 5 View

What is the difference of FTIR for functional properties and structural properties of protein?

I need to send my sample to outsource laboratory and how can i tell them that i want to run the FTIR for structural properties of protein? is there any differenece between FTIR for functional...

15 January 2021 8,992 1 View

What's the correct way of treating ordinal variable as continuous in regression?

08 January 2021 920 16 View

Does low pHPZC (Zero point charge) indicates higher negative charged surface ?

I found that, there is a difference in pHPZC value when higher impregnation ratio of acid on adsorbent surface. Lower pHPZC value when higher ratio of acid impregnation and adsorption performance...

05 January 2021 7,224 3 View

Why do I see many vacuoles on my cancer cells?

I am currently growing BICR31 cancer cells for conditioned media collection, and as I passaged it I have seen many bubbles/vacuoles - like structures. Cells were healthy during the first split...

05 January 2021 2,320 5 View

How can be the Virus COVID-19 become mutation?

The current situation the virus become mutation, but there were information that zero percent case in Wuhan?

31 December 2020 2,457 4 View

Why does activation process called as activation? what does the term means actually?

I'm referring to activated carbon activation. Activation process does increase the surface area and functional groups content in activated carbon compared to biochar and raw biomass. But I'm...

30 December 2020 6,514 1 View

What is the good water absorption value for construction materials (brick, mortar etc.)?

According to many construction standards such as ASTM, a good construction material should have a water absorption value within 20%. However, if we compare with many water absorption values (from...

26 November 2020 8,538 8 View

What sample extraction/ preparation needed prior HPLC test?

I want to screen the presence of plastic additives in a few water samples using HPLC-UV. I am very new to HPLC, and after doing a reading on the sample preparation for HPLC, I found there are a...

19 November 2020 2,724 4 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View