How to adjust a SEM parameters to get a good resolution for the image ?

i synthesized pyrochlore nanopowders and i want to get a clear image using SEM techniques but oI have to know more about the parameters

12 October 2020 4,146 5 View

Why does my empty vector control fluoresce more than my fluorophore-containing vectors?

I'm using the SpectraMax M3 from Molecular Devices to read 96 well plates which contain wells with E. coli transformed with vectors containing a fluorophore under an inducible promoter. On this...

03 November 2019 1,787 1 View

Which isotope should I choose when doing ICP-MS?

12 September 2017 6,528 5 View

Can I use the quantile regression to test a interaction term?

Hey, everyone ! I really need some help for my research! Basically, my study focus on how the relationship between a and b is moderated by c, so c supposed to have moderate effect on the relation...

19 June 2016 4,639 4 View

How to embed Eu-doped Y2Sn2O7 in the co-precipitation method

using a coprecipitation method, I am preparing nanopowders Eu-doped Y2Sn2O7 and I want to embed these nanoparticles, how to do that using the same method

01 January 1970 5,080 3 View

How to decrease the Z-Average(d.nm) and the PdL in Th DLS measurements and what is the right method to disperse nanoparticles ?

I am measuring the size of my nanopawder (after dispersing them in deionized water ) and every time the Z-Average and the PdL are high

01 January 1970 2,153 4 View

How to reduce the size of nanoparticles? (after having synthesized them by coprecipitation method) and how which solvant should i use for DLS

I had synthesized nanopowders by using the coprecipitation method and I got 300nm of size but I want to reduce their size for better imaging and results and also I want to characterize them using...

01 January 1970 1,789 6 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

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

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

How to use measure capacitance change in COMSOL time dependent study ?

I want to measure change of capacitance due to relative displacement between two parallel plates in COMSOL. Distance between two plates changes with time. So I'm using a time dependent study but...

26 February 2021 8,567 3 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

How to run raise regression in R?

if anybody know how to run raise regression in r, and raise parameter selection, please help me

24 February 2021 8,199 1 View