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 do I choose contrasts in SPM8?

I am learning how to use SPM for PET and PET-MR analysis, but I haven't found any great resources that explain how contrasts work. I have a series of PET images where our hypothesis argues that...

24 February 2021 1,534 2 View

Are there methods for automatically mapping floodplains, fans and terraces?

I want to map these river geoforms with as little subjectivity as possible. I have a high resolution DEM generated by drone data.

22 February 2021 7,800 3 View

How to use Remote sensing and GIS applications for mapping the available medicinal plants within the locality/municipality?

Hello, I'm very interested in mapping and managing the conservation of the Philippine traditional medicinal plants, in which I think is very helpful in the field of medicine for further analysis...

21 February 2021 374 5 View

Is this the fragment of a sauropod tooth?

Dear colleagues. Fragments of this species are very rare from a terrestrial Lower Cretaceous locality from Germany. Up to now from this locality sauropods could not be proved with certainty. Other...

14 February 2021 2,310 1 View

What are the limits of determining metastability in the brain?

What are temporal limits in determining brain metastability? In other words, how long does the minimum length of the scan segment using fMRI have to be for the result to be of any value? I'm...

07 February 2021 2,380 2 View

Are the hyperspectral image datasets which are publicly available at ehu.eus website atmospherically and geometrically correct?

I've come across a couple of publicly available hyperspectral image datasets from the website http://www.ehu.eus/ccwintco/index.php/Hyperspectral_Remote_Sensing_Scenes Now, my concern is...

05 February 2021 3,550 1 View

I'm trying to do pixel-wise correlation comparison of two datasets? Any available procedure or codes to perform this?

I'm trying to do pixel-wise correlation comparison of two datasets? Any standard procedure or codes to perform this? Like Correlation Coefficient map and RMSE map of a particular region.

31 January 2021 2,959 8 View

How to extract peak coordinates from a given cluster with MATLAB as in the SPM results viewer?

Hello everyone, I am trying to extract peak coordinates from given clusters in an 3D fMRI group image, e.g. a thresholded ICA z-score map. Using MATLAB/SPM I am able to extract a single peak...

26 January 2021 7,672 2 View

Does the pre-synaptic neuron location in a cortical map influences the spatial position of its synapses in the dendrite of the downstream neuron?

Are functional maps in the cortex used by the brain to carry out computations or are they just a byproduct of wiring minimization? A key element to answer this question is to know if, when...

26 January 2021 1,118 8 View

How to fix the voids on a floodplain map by using HEC_RAS model?

24 January 2021 9,054 2 View