What is the gyan (enlightened knowledge, understanding) on calculating the quantity of ligands required to functionalize any particular nanoparticle?

There are many procedures out there: TGA, ICP-MS, NMR these are all post process. But what is a good method to estimate the extent of ligand required for functionalization? If we know the size of...

22 March 2018 9,772 3 View

What could be the possible reasons for getting 20 unit less value of mass of pure compound which is well charecterised by NMR?

My compound is well charecterised by NMR but in case of ESI-mass spectrum it is coming 20 unit less then the expected mass. Molecule is not having any associatio with water. I could not find any...

12 September 2017 6,260 2 View

How the surface oxide layer involved in the corrosion resistance?

How the surface oxide layer involved in the corrosion resistance?

19 June 2016 5,808 10 View

Is curcumin a good candidate for wound healing besides its cytotoxic effect on Keratinocytes and fibroblasts?

29 December 2015 7,263 4 View

Phylogenetic analysis of the gain/loss of genes along different species lineages?

To identify the gain/loss of genes in a set of species? For example, I am interested in identifying the list of tRNA genes which are gained or lost among different strains of bacterial species or...

17 June 2013 1,261 3 View

How do I find shine dalgarno sequences for prokaryotes?

Is there any tool to identify it or Is there any database with relevant information on it?

18 March 2013 8,708 33 View

I want to learn correspondence analysis and multivariate analysis?

If the above concept is explained in biological example, it will be more helpful for me.

03 June 2012 330 2 View

Is there any database to get the highly expressed and poorly expressed genes?

For any species?

03 June 2012 6,341 3 View

Impact test analysis...

hi... i am trying impact test analysis using composite materials. whether the layup i have assigned material data, also assigned mass point load for rigid discrete model part. am getting error...

01 January 1970 1,826 6 View

Compiler error... how to solve?

hi everyone... as already said before i have tried with so many version to link with abaqus, Visual studio -2016 and parallel XE 19 end with error, visual studio-2015, fortran-16.0 end with...

01 January 1970 2,754 6 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

No title

01 March 2021 3,905 5 View

What test should I use to compare two or three means, if data is not normally distributed but sample size is > 30 in each group?

I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...

01 March 2021 1,587 6 View

Is it necessary to report effect size (ES) in statistics of biomedical research given that we already report p values routinely?

Pls share your thoughts

01 March 2021 7,330 4 View

Why there are two peaks while using the mie plot of Silver nanoparticle?

Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...

25 February 2021 7,493 6 View

How to calculate Z (the number of molecules in a unit cell) for calculating theoretical density?

I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...

24 February 2021 3,823 2 View

How to handle studies which report perfect effect sizes in a meta-analysis using Pearson's r?

I'm in the process of updating a meta-analysis and in one of the new studies, effect sizes are reported as Tau-U. Two of the effect sizes are reported as Tau-U = 1.00. I am using Andy Field's...

24 February 2021 2,265 3 View

Sample size determination for non-parametric tests?

How do I run a a priori sample size determination for non-parametric tests, like the Mann-Whitney U-test and the Kruskall-Wallis or other non-parametric tests that accord with the unpaired t-test...

24 February 2021 166 6 View

How to determine a priori sample size for t-test with unequal means?

I need to conduct a a priori sample size determinations for t-test with unequal means, but I don't know the sizes of the groups nor the ratio of both groups... Can I do a sample size determination...

24 February 2021 8,289 3 View

What are alternatives to factor analysis for a small sample?

My sample size is too small to conduct a factor analysis. I created my own psychometric scale for measuring Effectiveness of Support, which contains 38 items (4 sub-scales) Im really struggling...

23 February 2021 9,287 12 View