How to calculate a standard deviation of multimodal distribution?

I made an experiment where I measure certain parameter a number of times. The result is over a 100 samples which distribution is not really normal. Due to properties of my specimens, results tend...

17 November 2019 318 3 View

Should I amplify fluorescent signal with an antibody for my virus-based tracing study?

15 October 2019 2,292 1 View

Lithium nitrate presence in gel?

I'm trying to synthesize Li2FeSiO4 using sol-gel method. The substrates are lithium acetate, iron nitrate, TEOS and citric acid. Lithium acetate and iron nitrate are mixed in water solution with...

08 November 2018 8,953 1 View

How to compare two groups with multiple measurements?

Hello everyone! I have a theoretical problem with a statistical analysis. I was looking a lot at different fora but I could not find an easy explanation for my problem. I want to compare means...

10 May 2018 3,514 15 View

Climate refugees and international humanitarian law. Is it possible?

I asked about this six months ago and I didn't receive any answers. But, I still believe the question is important and mabye this time will be possible to start discussion. I know, probably it's...

05 December 2017 5,617 8 View

Problems with Newick files during submission - Evise submission tool

Dear All, does anyone had problems with the Newick file during submission to the Molecular Phylogenetics and Evolution (Evise submission tool)? The system is rejecting my .nwk/.new files. I've...

19 June 2017 6,330 1 View

How to quench glutaraldehyde fluorescence?

Hello everyone! I would like to ask, how to quench autofluorescence of glutaraldehyde fixed specimen. I always perform standard fixation for immunocytochemistry (4%FA and 0,5%GA) but this time I...

28 February 2017 2,068 5 View

Are banana plantations good sites for mist-netting of passerine migrants in the Middle East and Africa?

I have good experience in other habitats, but have never tried this one - could it be reasonable to try?

22 April 2014 3,225 3 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View