How would you perform power analysis in SAS?

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Do you have suggestions for feed formulation software?

Hi, I am considering buying a feed formulation software that could be used for teaching as well as animal experiments for both ruminants and monogastric species. Do you have any suggestions for...

11 December 2018 5,482 34 View

How to calculate area under curve (AUC) in R?

I would appreciate if you share R codes, information, suggestions etc. regarding calculation of area under curve in R for time-series data. Thanks

08 September 2017 2,903 7 View

Is Picro-Sirius Red staining also applicable to frozen sections?

Picro-Sirius red staining has most frequently been used on paraffin sections and I was wondering if it is possible to use this for cryosections as well. I would appreciate you comments,...

08 September 2017 8,777 2 View

How to compare histograms from different groups in R?

Hi there, Will you share how to compare histograms (frequency distribution) from different groups in R? Would appreciate,

07 August 2017 6,190 24 View

Independent t-test with covariates?

Hi all, I have two independent groups I want to test whether their values differ significantly for a number of parameters studied. Based on my statistical knowledge from early university, the...

01 February 2017 9,931 13 View

How to use lsmeans to make interaction plots in R?

Hello there, I would appreciate if you could provide some tips on how to use lsmeans to make interaction plots in R. Thanks alot

01 February 2017 3,529 11 View

How to deal with two repeated variables (nested) in lme R?

Hi I have a response variable (response) measured hourly 48 hours (hour) and repeated this again for 5 weeks (week). I would appreciate if you suggest how would you tell this to lme in R with...

11 December 2016 2,459 5 View

In a repeated mixed model analysis, the repeated variables such as time or week etc. are treated as a factor or continuous variable in the model?

Hello there, I am performing repeated measures analysis where I need to look at changes in blood parameters over a period of time (lets say week). So, should I use week as a factor or continuous...

09 October 2016 5,711 10 View

What is the best way to measure gluconeogenesis in-vivo in mice?

Would you please let me know what would be the best way to measure gluconeogenesis in-vivo in mice, I would appreciate.

09 October 2016 2,331 2 View

What could the best way to preserve mice pancreas to obtain good RNA yield for qPCR?

Hello everyone, I had had a difficulty in obtaining good RNA yield from sheep pancreas samples in the past. This time I am going to try with mice samples. Would you please suggest effective ways...

08 September 2016 7,618 3 View

Which distribution type should I use when calculating the average particle size from TEM image? and how to calculate the error ?

average particle size calculation from TEM

04 August 2024 2,921 1 View

How to calculate effect size of AMCE (Average Marginal Component Effect) in Randomized Conjoint Experiment?

I am following Hainmueller, Hopkins, and Yamamoto's (2014) paper for my randomized conjoint experimental data analysis. The link to the paper is provided below. I received a comment from the...

02 August 2024 4,406 0 View

SAS Generalized Linear Model for trial/event anaysis and not survival (time to event) analysis?

I am looking for a published article using SAS or SPSS Generalized linear model for trial/event data and not survival analysis. Both software packages off the option for the number of success out...

30 July 2024 3,835 2 View

How to conduct a sensitivity power analysis for Kendall's Tau?

Is there a straightforward way to conduct a sensitivity power analysis for a Kendall's Tau correlation? I was considering using the sensitivity setting and "Correlation: point biserial model" test...

28 July 2024 6,133 8 View

Terrorism, a natural inclination of all animal species?

There are many types of symbolic judgements. For example, when an Israeli pilot flattens the home of a Palestinian family (even if they are forewarned), it is natural for them to experience shock...

28 July 2024 2,610 1 View

How to estimate sample size for GWAS of continuous and discrete traits? What are the pre-requisites?

Genome-wide association study (GWAS) Continuous traits: eg. Height Discrete traits: eg. Eye color

28 July 2024 286 0 View

What is the best method for removing paraffin from plant samples prepared for microtome?

...

24 July 2024 3,087 3 View

How many samples size should I select to compare both groups?

I want to study the differences between two groups: the treatment group and the comparison group. The total population consists of 60000 women in the treatment group, distributed across different...

21 July 2024 669 3 View

How can I calculate minimal sample size using G Power?

I am conducting a study aimed at exploring the correlation between introversion and social phobia among Lebanese adults. I need to calculate the minimal sample size using G Power, but I'm not sure...

19 July 2024 6,048 1 View

How to bring baseline to zero for an absorbance data for chromatogram?

I forgot to autozero during the run (Size exclusion chromatography.) and later i realised i forgot to do that and the baseline was not zero but below zero (and in some cases it above zero). I...

15 July 2024 5,551 6 View