How to perform hydrogen underpotential in hydrophobic material?

I have a working electrode composed of deposited graphene material (confirmed from Raman).The graphene is porous and has deposited Pd nanoparticles. I am trying to perform hydrogen underpotential...

01 February 2021 3,199 1 View

Plant extracts versus a fungus, why lower concentrations are sometimes more effective than the higher concentrations?

We conducted a laboratory experiment (two trials) on the effect of plant extract against rice blast fungus. The study involved 0, 25, 50, 75, and 100% concentrations of ethanolic extracts against...

13 October 2020 7,214 4 View

How to choose the right polymer that can disperse my nanoparticle properly?

I have copper nanoclusters, can you provide me guidelines on how to find an appropriate polymer that can disperse it properly?

13 May 2020 3,249 9 View

Why my restiction enzyme treated chromasomal DNA has Plasmid results?

I conducted a practical whereby previously isolated plasmid and chromasomal DNAs that had been electrophoriesd in sepeerate gells where then both treated with the same restiction enzyme (EcoR1)...

11 September 2019 8,730 3 View

Quantitative methods for perception analysis - is this possible?

Hi there, I am looking at the perceptions Key Stage 2 learners (Years 5 and 6) have towards iPads in the classroom. Is it possible to look at this question from purely a quantitative point of...

09 March 2019 9,892 1 View

Can anyone help me convert the concentration of human anti-hepatitis B antibody (Hepabig) from IU/ml to mg/ml?

I am using Hepabig brand which only states 100 IU/0.5 ml concentration of antibody but no mg/ml immunoglobulin concentration estimate.

05 March 2019 5,808 15 View

Increasing solubility of 20-50 nm diameter Carboxylate modified Polystyrene Nanoparticles?

We want to inject these into a living insect. They come in a solution that includes a surfactant that will harm/kill the insect after injection and they appear to aggregate heavily when the...

12 February 2019 9,892 2 View

Why is mass spectrometry not inherently quantitative?

I am going to be working with a proteomics core to look at phosphorylation of signaling intermediates in response to a hormone of interest. I want to have a better understanding of mass...

02 September 2018 1,692 16 View

I'm characterizing the lipids produced by E. Coli under different temperature conditions could you suggest a TLC or GC protocol w/ standardization?

I am working on the characterization of the lipids produced by E.coli (ATCC 25922) under different temperature conditions for their eventual use in a leakage assay. Could anyone suggest a...

06 February 2018 2,671 4 View

Foaming is typically considered a problem in bioreactors. Does anyone purposefully grow microbes in a pure foam reaction?

Foaming is typically considered a problem in bioreactors. Does anyone purposefully grow microbes in a pure foam reaction? Does anyone induce foam formation in a bioreactor as a way of speeding...

03 December 2017 1,219 1 View

What kind of intervention will be relevant to increase motivation among young sport trainees?

Any suggestion on what book to read is also welcome.

03 March 2021 1,646 4 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

Mixed ANOVA - help?

I'm currently working on a piece which asks to conduct an ANOVA - looking at the effect of sporting group (2 levels), and exercise trials (two trials with six levels). I've computed this all...

27 February 2021 9,626 4 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

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