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 to prevent silane crosslinkage at pH near to neutral, in resins that are fully waterborne?

Hello, We are working intensively on silane usage as a coupling agent for acrylic polymers. We have a resin with more than 65percent of water and an acrylic monomer, which we polymerize on glass...

14 January 2020 726 1 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

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 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

PACYC PCR not working after several attempts. Would anyone have any suggestions?

So, I have been trying to run a pACYC PCR which will be used later on for a Gibson Assembly. However the PCR is not working. I have already tried gradient PCR and changing extension time; however...

02 March 2021 1,146 2 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

Which fluorescent dye to use for measuring total ROS production?

Is DCFDA appropriate for measuring total ROS production, or can it only detect certain types of ROS? If I want to measure total ROS production, which dye should I use?

01 March 2021 9,447 3 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

Can someone suggest a way to prepare slides to observe under confocal microscope for observing fluorescent tagged proteins??

I am growing the cells on coverslips and transfecting the fluorescent tagged protein directly on them. Then i want to observe these cells under confocal microscope. Currently i am just using...

01 March 2021 6,142 3 View

RIA. How to measure?

When you use RIA, with a control the unknown sample with antibodies, you bare in mind the binding sites of the antibodies. However you still need to measure labelled antigen (radioactive) and not...

28 February 2021 2,133 3 View

Why does intensity drops as concentration increases?

Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?

28 February 2021 3,653 4 View

How to evaluate unsupervised clustering metrics when some elements do not have a cluster label in the result?

I run algorithms like HDBSCAN and MeanShift, and compare them with K-means and GaussianMixture. The first two algorithms do not return cluster labels for some elements in the dataset. My question...

27 February 2021 428 3 View