What is the correct common name for Hydrochoerus hydrochaeris?

There are two extant species of Hydrochoerus: Hydrochoerus isthmius, the lesser or Panamanian capybara, and the genotype species H. hydrochaeris. The latter is the more common species of capybara,...

11 February 2021 3,494 14 View

Is there an alternative to PGLS that considers phylogenetic signal when calculating the estimated value?

I have been working on a study trying to estimate body mass in mammals using a skeletal proxy in R. My dataset has high phylogenetic signal (Pagel's Lambda = 0.9) and I am interested in removing...

26 January 2021 6,997 3 View

Are phylogenetic independent contrasts still used in biology?

I have a regression equation in which I am curious if the amount of scatter around the regression line is driven by phylogeny. I know there is a lot of phylogenetic signal because Pascal's lambda...

22 December 2020 937 1 View

What is the cause of abnormal breathing in anaesthetized rats?

Is anyone able to tell me why my anaesthetized rats often do a 'double breath', or diaphragmatic breath, like a hiccup (see video). This often begins after 1-2 hours under anesthesia, and can...

06 December 2020 2,514 5 View

Problems detecting miR-155 with Advanced Taqman miR kit?

18 October 2020 9,880 3 View

Control miRs for RNA extracted from FFPE DLBCL samples?

04 August 2020 1,195 1 View

Can the magnetic permeability and electric permittivity of the vacuum be modeled as the quantum vacuum magnetization and polarization, respectively?

If the magnetic field permeability and electric field permittivity of the quantum vacuum at a point in spacetime may be understood as the effective vacuum magnetization and vacuum polarization,...

04 June 2020 7,655 2 View

What sample size do I need if my total population is 195 (countries in the world)?

Hi everyone, (Please excuse the ambiguity within the question - protecting my idea) I recently discovered some indexes which I and colleagues would like to see if scores on these indexes across...

02 June 2020 3,960 11 View

Has anyone had issues with automated plagiarism detectors and pre-prints?

I've heard of automated plagiarism systems provided by many journals nowadays picking up on similar content in published abstracts from conferences etc. and since these automated systems are a...

21 March 2020 4,304 4 View

When do I remove participants instead of impute data?

I have a data set of around 1630. Some variables are missing in 20% of the sample (the later questions - survey fatigue/drop out). (I'm considering removing 250 participants who didn't answer...

17 March 2020 7,667 5 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

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

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 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

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View