How can we calculate the sample size for rodents for a particular period of time?

How can we calculate the sample size for rodents for a study for one year? Are there any specific protocols to be followed for designing rodent sampling? How long should be the sampling interval...

01 March 2021 1,056 3 View

Can someone help me with tissue histology of mice?

I've been trying to assess the efficacy of a drug that I've purified in mouse model. I've induced mammary tumors in balb/c mice and treated them with my drug. I've harvested the tumors, and other...

16 December 2020 3,515 3 View

Can anyone help to get this research paper on OCB?

Turnipseed, D & Murkison, G (2000). Good Soldiers and Their Syndrome: Organizational Citizenship Behavior and the Work Environment, North American Journal of Psychology 2(2)

11 November 2020 7,488 3 View

What are some landmark texts and papers on agroecology we need to follow for a clear understanding?

We often read a lot about sustainable agriculture or conservation agriculture (or recently, climate-smart agriculture) but it is often difficult (especially for early-stage researchers) to fathom...

08 April 2020 9,212 10 View

Can anyone share me a better image of the attached map? In which book the map was originally published?

The map is reproduced in Eaton, Richard M. The Rise of Islam and the Bengal Frontier, 1204-1760. Berkeley: University of California Press 1993; reference given are: Barrie M. Morrison,...

13 August 2019 1,485 2 View

Does 4T-1 cells induce ascites in mice?

I am new to in vivo research. I have tried to induce solid tumors in mice by injecting 4T-1 cells in the mammary fat pad, which is an established procedure. While i mostly ot solid tumors, 2 or 3...

18 June 2019 973 3 View

How to solve problems arising from choosebank() command in R?

I am using seqinr package in R. But when I am giving the command choosebank() to find out the existing databases or commands like choosebank('swissport") to open any specific database, R is...

15 April 2019 1,541 3 View

What is the scope of Fortran in machine learning?

I intend to use ML for molecular dynamics simulations and want to know of packages available in Fortran. Would it be more efficient to use some other language instead for the long run?

09 January 2019 8,295 2 View

Which regression/multivariate technique to apply if dependent var is continuous scale, cant be categorised, non-normal, Indep Variables dichotomous?

02 September 2018 1,981 2 View

For droplet-based sc-RNA sequecing data, library size varies across cells. How does one tackle this when calculating statistical variance for genes ?

To calculate the statistical quantities like variance or mean expression of a gene across cells, it is unfair to compare expression counts of a say gene A, if we know different cells has not be...

14 July 2018 10,016 2 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

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 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

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 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