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

Cognitive interviews and survey - mixed methods?

I would be grateful for some advice about how to classify my research. I have conducted two surveys and used cognitive interviews. The first survey was descriptive (quantitative), then I...

14 December 2020 1,810 4 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

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 3 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

How can I selectively dry etch Ti on a polymer substrate?

24 February 2021 5,378 1 View

How the Ground Plane implantation is performed without damaging (and w/o varying the undoped nature) the top Si (8-10 nm) in FDSOI technology ?

It is a general practice to introduce Ground Plane in FDSOI devices under the BoX. The Ground Planes are introduced by Ion Implantation through Top Si layer and Buried Oxide. I wanted to know that...

24 February 2021 5,974 4 View

How to dissolve cross-linked Amberlite IRC120 H, hydrogen form resin?

Hello all, I have used Amberlite IRC120 H, hydrogen form acidic cation-exchange resin for the ion-exchange of waterglass [sodium silicate solution -- 40% Sodium silicate (mol ratio > 3.2)...

21 February 2021 5,614 3 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

How to prepare electrolyte of NaClO4 salt for Na-ion battery? Any problem with this salt?

Hello, I am trying to make anode for Na-ion batteries. I have no experience with preparation of the electrolyte for any batteries. NaClO4 salt are available and I am planning to use EC:PC as...

21 February 2021 8,132 1 View

How can I obtain Reaction Forces in ABAQUS?

I am trying to simulate a simplified version of a beam resting on 10 points using Abaqus. The solutions I want to obtain are the Reaction Forces in each resting point or area when applying a...

21 February 2021 3,075 2 View

What cause the beating of this signal?

I am trying to simulate the impact of a sinusoidal force on a Beam, yet I registred this beating signal (Displacement by time). The freaquency of excitation was the same as the first natural...

19 February 2021 5,872 3 View

Anyone know how to contact Raymond Streater?

He is emeritus in the mathematics department of King's College London. The email address listed on their web site is not functional. The department has no way of physically contacting him due to...

15 February 2021 5,529 1 View