How can I take subsamples of water from a larger sample in a way that allows me to measure the iron content of the subsample?

I learned how to take subsamples with a magnetic stir bar, but I noticed iron particles stick to the bar, and I am having trouble finding a standard method to solve that problem. How can I take a...

04 February 2021 4,778 1 View

I am looking to develop a basic oral microbiome assay. Can anyone advise on culture vessel, conditions and organisms that require minimal maintenance?

I am looking to investigate oral care products with an easy-to-prepare culture of orally derrived microorganisms.

21 January 2021 3,448 1 View

PEI DNA in-vivo transfection concentration?

04 January 2021 6,908 7 View

What would be the recommended color/method for quad-IF?

I'm trying to perform quad-IF staining on frozen tissue sections on a fluorescent widefield (axioplan) microscope. I was wondering what people might suggest for colour/strategy for a co-IF...

13 October 2020 6,863 4 View

How do you remove the tolerance limits when running collinearity statistics in SPSS?

I am using SPSS syntax to determine multicollinearity with predictor variables of interest. When I enter the variables, SPSS is removing some of the variables because the minimum tolerance limit...

02 June 2020 3,639 1 View

How to distinguish different phases on an xrd pattern?

In XRD, how do you distinguish among the crystallized phase, amorphous phase, and a mixture of the two? How will the peak look like in a mixture of a crystalline and amorphous material?

05 May 2020 9,707 7 View

Are there any techniques to embed transmembrane proteins in solid lipid nanoparticles like liposomes or micelles?

25 January 2020 3,991 2 View

Specim FX17 hyperspectral camera/sensor - UAV/drone application?

Hey, I am looking into the feasibility of attaching a Specim FX17 sensor to a multi rotor system. Specs wise it looks possible, sensor is 1.4kg and Matrice M600 max payload is approx 15kg....

16 December 2019 4,169 2 View

Is the calculation of AVE and composite reliability after EFA recommended?

Greetings! The link to the Todd Grande tutorial below demonstrating the calculation of AVE and composite reliability to factor loadings appears to be popular viewing. My question is would you...

08 December 2019 711 4 View

What is the best way to model 9 continuous factors with 2 factors out of the 9 with a non-linear response, i tried using statgraphics, DOE beginner?

Good Day,this is urgent please, i want to use statgraphics trial version to study a part of my work. I am considering different stratified layers in a particular oil reservoir, i considered...

19 October 2019 3,227 1 View

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 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

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

What are the patterns of human behavior that lead to COVID-19 infections?

Does data from contact tracing help in establishing patterns of behavior and social interactions that lead to infections? There are cases here in the Philippines where patients have no travel...

25 February 2021 9,002 13 View