Are you a researcher or practicioner in the climate change adaptation field? Do you have knowledge or experience with Monitoring and Evaluation?

Dear Colleagues, My name is Sylvia Lima and I am conducting a survey as part of my Ph.D. research in evaluation of climate change adaptation success in coastal areas of developing countries with...

09 November 2020 6,434 3 View

LED light for plant growth chamber for ecotoxicity experiements - which set up and typ of lighting do you recommend?

We are building a new plant growth chamber for plant ecotoxicity experiments (algae, seed germination, genotox experiment with Vicia faba, Lemna growth inhibition etc. The old one used cooling and...

21 June 2020 8,017 2 View

PMMA dissolved in acetone, VOCs released?

Acetone is a solvent for PMMA. Could anyone direct me to articles where the VOCs that are released during the formation of the homogeneous solution?

05 June 2018 9,051 2 View

Effect size from LOESS plots?

Is it possible to obtain an effect size (such as correlation coefficient or some measure of goodness of fit) from a locally weighted scatterplot smoothing plot? The reason for obtaining an effect...

23 October 2017 9,865 1 View

In a regression analysis with a large number of ordinal predictors, how can I test linearity? What plots may be specific to those ordinal variables?

I have close to 50 predictors in my regression analysis and I have no problem testing the linearity of the interval covariates but I am unsure if the plots I have produced for the interval ones...

18 March 2017 1,356 12 View

How can I get my porcine chondrocytes to detatch from 24 well plates after 7 days of culture?

18 August 2016 7,366 3 View

Can anybody recommend a good antibody against Jun for WB and ChIP in rat?

Can anybody recommend a good antibody against Jun for WB and ChIP in rat? Thanks.

06 June 2016 4,247 2 View

Is there an alternative to Argon gassing for adequate storage of lipids?

Hello Colleagues, I have vials of a phospholipid formulation that I will use to prepare lipososomes. Once opened, I will not be using each vial immediately. Most researchers report using something...

07 April 2016 2,376 2 View

What is the exact size and range for mouse oocytes?

Hello - Can anyone please direct me to a reference that may give morphometry data on mouse oocytes, both at GV and MII stages? Basically I have an idea that the mouse oocyte measures at 70 um in...

09 February 2015 9,659 4 View

What would cause good R2 value but bad Ct and efficiency in real time pcr?

09 December 2014 9,729 6 View

How to create Multidimensional Inequality Index?

Hi, I want to create an index to measure inequality in education. First of all, it would be necessary to identify the inequality within the 5 educational level. Therefore, I seperated 5 level to...

13 February 2021 6,663 6 View

What is role of toluene and stearic acid in ball milling for powder ? In what weight percent we should add this to powder?

I am doing ball milling operation of Aluminum and silicon carbide powder. I am pretty confused about what should be added as process control agent ? what is role of toluene as PCA and stearic...

12 February 2021 5,205 3 View

Can Scree Plot in SPSS show an incorrect data on X-axis?

Hi! I'm working on a PCA in SPSS 23. I have 78 items. PCA extracts 16 components. However, scree diagram is plotted with items (manifest variables) on the X-axis. Not components (factors). See...

27 January 2021 5,919 3 View

How to interpret PCA results in weka & how to extract features from it?

I'm working on KDD CUP'99 dateset. Training and test set are different datasets. after pre-processing I got 25 attributes. I applied 4 different classifiers through PCA in WEKA(classify tab). Now,...

20 December 2020 8,425 4 View

Do I need to combine grouped items from principal component analysis (PCA) before running a regression analysis?

I just completed principal component analysis (PCA) and want to progress to multinomial logistic regression. I am wondering if I need to combine grouped items from my PCA into one variable in my...

18 December 2020 9,664 3 View

How Shall I perform Principle Component Analysis in GROMACS?

I have to perform PCA as a part of my results and analysis of protein-ligand complex docking using GROMACS 2018.8. How shall I perform PCA and interpret the results for the same? Any insights...

13 December 2020 3,121 2 View

Principal Component Analysis?

Hi everyone, I want to perform Principal component analysis (PCA) for Excitation Emission Matrix (EEM). Can You anyone give the python language coding for it?...

17 November 2020 2,776 5 View

How do one construct a single or Overall PCA "Index" and Interpreat it?

I am using Principal Component Analysis (PCA) to create an index required for my research. My question is how I should create a single index by using the retained principal components calculated...

31 August 2020 5,863 3 View

Script required for PCA in R?

Kindly share R script to compute PCA (Principal component analysis). Regards Sougata Das.

31 August 2020 5,968 4 View

Ideal saline volume for intravenous injection in rats ?

Hello everyone, my interest is to understand the molecular mechanisms involved in anaphylactic shock using Wistar rats. While i inject non-allergic naive rats with iv bolus (1 mg ova in 1 ml),...

27 August 2020 9,444 2 View