Do you know of any article which does a Monte Carlo Simulation assessing measurement invariance in R studio?

Hey! I am a psychology student working on a small project for one of my seminars. The goal is to present to fellow students how different sample sizes affect different ways of assessing...

19 January 2021 4,618 9 View

How can i get my data to be in normal distribution?

The error rate data i have has a strong right skewness and therefore violates the assumption of normal distribution for using an ANOVA. I tried transformation by square root and log10. After...

01 October 2020 8,906 9 View

What is the current state of User Interface Definition Languages?

Hi everybody, in one of our research projects we are currently thinking about generating User Interfaces based on a model representation. I dived into this topic a couple of years ago and still...

15 September 2020 5,350 1 View

Good solar PV Cost country paneldata?

13 August 2020 2,739 4 View

CalculiX Load Beam with moment that follows nodal rotation?

Hello, This is propably a primitiv question but I am trying to figure out how to implement a moment at the tip of a (for simplification) beam around the z axis. It should follow the nodal...

01 April 2020 3,678 3 View

How do AFDyes(TM) compare with Alexa Fluor?

Just wondering due to the stark price difference between AFDye 594 Cadaverine (Click Chemistry Tools) and Alexa Fluor 594 Cadaverine (TFS). From what I read they are supposed to be structurally...

11 March 2020 9,532 2 View

ISO 527 difference of type A and Type B for testing?

I'm planning an experiment with ISO 527. I would like to know what the difference are when testing a type A ( with narrow parallel-sided section and tabs) compared to a type B (rectangular shaped)...

25 February 2019 570 2 View

Increasing solubility of 20-50 nm diameter Carboxylate modified Polystyrene Nanoparticles?

We want to inject these into a living insect. They come in a solution that includes a surfactant that will harm/kill the insect after injection and they appear to aggregate heavily when the...

12 February 2019 9,892 2 View

Is there a ROS scavenger which would not quench carbon centered radical?

Hello, I am looking for a compound which could selectively quench reactive oxygen species while not quenching carbon centered radicals (for a polymerization reaction). Thanks a lot.

11 December 2018 8,494 7 View

Origin & evolution of Resistance plasmids & plamids in general?

Hello, can anybody recommend an article/articles or gives details on the origin and the evolution of plasmids. I'm also interested in the molecular mechanisms that leads to the formation of a...

30 November 2018 5,951 1 View

Is it possible to do piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch?

How to do Piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch? Piezoelectric coupling between the rectangular substrate and rectangular...

02 March 2021 9,833 3 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 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

How can you tell if your organotypic slice culture is healthy ?

I'm working on organotypic cerebellar slice cultures from postnatal rats and I'm not sure how to tell if the slices are healthy at any given point. I know there should be a lot of microglial...

15 February 2021 2,830 2 View

Onset of Photo Oxidation in Polymers?

Hi! I am looking for some specific information in regards to the minimum amount of UV intensity required to begin the photo degradation process in polymers. I understand each polymer is...

15 February 2021 7,703 4 View

Best protocol for immunogold using araldite resin ?

Hello, We perfom Tokuyasu method (ultrathin cryo sectionning) very often to make immunogold experiments. This time, we need to make a PLT technique with K4M or LR white resin. Our results were...

14 February 2021 4,959 1 View