How is solubility of CO2 or air in organic solvents such as xylene or cyclohexane?

For some reason, I need to inject a dispersion of an organic solvent and organoclay into a block of soil sample. the organic solvent probably is xylene.

29 September 2020 6,348 4 View

What is the best solvent to dissolve nanoclay (montmorillonite)?

I need to inject nano-clay to some kind of collapsible soil (silty loess) to stabilize and strengthen it. I can't use water since this soil is moisture sensitive and water may dissolve the bonding...

26 March 2020 1,675 3 View

Can I use matlab deep learning toolbox for regression problems?

Hi everybody I want to use MATLAB deep learning toolbox to relate the activity (pIC50) of molecules to their molecular descriptors. Can I use convolutional neural network with a regression layer...

03 February 2020 1,874 6 View

How to extract the cytoplasmic content from human cells ?

Dear all, I want only cytoplasmic content from the human cells to test my compounds. Does anyone knows how to do it or can share the protocol for doing it ?

29 June 2018 9,042 2 View

How is a DNA sample that has a point mutation and is identified by Allele specific send for sequencing?

(The sample that has been diagnosed mutant; definitely its product has mutant components, because the primer is a component of DNA!)

12 January 2018 4,892 2 View

How to determine the degree of similarity between two signals?

I'v been doing an investigation about detection of a specific signal and I need to determine that how a received signal resembles the reference signal. A primary approach to this problem is done...

06 November 2017 6,369 7 View

How we can apply FRP in Concrete beam with Abaqus?

Hello all, I want to modelling a Concrete Beam with ABAQUS, My intention is that first beam cracked and then the FRP, apply to beam and analysis continue. can you help me?

11 January 2017 8,962 6 View

How can we determine representative volume element length (Lrve) for concrete?

for periodic materials, determining Lrve is simple but for a non-homogeneous material such as concrete, it is not that simple. any advice such as methods, references, etc. would be appreciated.

04 November 2016 6,044 3 View

What is the best fixation and preparation for fluorescence microscopy of GFP tagged bacteria in bone?

25 May 2015 6,612 3 View

How can i do a meta-analysis of a subject in sport and physical education?

I want to learn about this type of research.

11 January 2014 9,954 3 View

What are some alternatives to the Self-Directed Learning Readiness Scale (SDLRS) developed by Dr. Lucy L. Guglielmino?

The Self-Directed Learning Readiness Scale (SDLRS), also known as the Learning Preference Assessment (LPA), was developed by Dr. Lucy M. Guglielmino in 1977 to measure learners' attitudes of and...

15 February 2021 3,095 4 View

How to calculate response rate if the number of eligible respondents is not available?

Hi All, I am carrying out an international research with clinicians (speech-language pathologists/ therapists). International professional associations will be distributing the questionnaire link...

02 February 2021 5,306 3 View

How is it possible to rank variables using Likert scale?

Hello Everyone, I have a questionnaire of a 3-point Likert scale for an overall evaluation for a service, and several detailed attributes evaluation of that service. For example: Overall...

31 January 2021 9,612 8 View

How do you multiple impute item scores and perform a linear regression on factor scores?

I am developing a questionnaire and first performing an exploratory factor analysis. After I have the final factor structure, I plan on regressing the factor scores on some demographic covariates....

18 January 2021 883 8 View

How do I access Domestic Violence Attitude Scales or find them for free?

Hi, I'm a postgraduate student currently starting up a research project on attitudes towards domestic violence (DV). The study will aim to compare cultural differences between attitudes and...

31 December 2020 781 3 View

What is the best Quality of Life questionnaire for chronic patients?

Hello! I am looking for a SHORT questionnaire/scale to measure Quality of Life in chronic patients (e.g. fibromyalgia, or multiple sclerosis). Ideally, validated for English and Spanish speakers....

22 December 2020 9,962 4 View

Is it always mandatory to report and test the validity and reliability of a newly developed questionnaire?

Hello everyone! Currently, I am doing an observational, cross-sectional study on knowledge, atittude, and practice towards thalassemia in Indonesia. My area of interest is in population studies....

16 December 2020 3,725 16 View

May I use Minimal important difference (MID) in non-normal distribution?

MID is based on Standard deviation, consequently, I should not use it in non-normal distribution. Am I right? If yes, which test may replace MID?

13 December 2020 7,573 3 View

How to do Factor analysis for extracting items - side by side column questions ?

Hi everyone, I have side by side questions in the questionnaire. There are total 29 questions. Each question has more than 11 items and three side by side columns to capture different contexts...

02 December 2020 5,499 3 View

How best is to compute the internal reliability of a CPTED elements scale which is made up of binary coded responses?

I develop a CPTED elements audit and site assessment checklists questionnaire consisting of about 43 questions to be answered in the (yes=1, no=0) setup. I want to compute the internal reliability...

19 November 2020 6,286 11 View