How do you to do a power calculation to demonstrate a sample size?

Hi I am trying to do a power calculation. I do not have a mathematical background. I know it requires mean*, SD* and minimal clinical important difference *the above I got from previous...

15 January 2021 3,026 3 View

What method is more useful for prepare metal/ metal oxide Nanocomposites?

If possible any easy preparation method

31 December 2020 1,662 3 View

Can PDMS be bonded to gelatin and form a mechanically resilient junction?

18 September 2018 9,988 1 View

Can you reliably impute entirely missing surveys from a longitudinal study?

My colleagues and I have delivered a 4-wave survey (day 1, day 30, day 60, day 90), which makes use of multiple psychometric measures. We have the complete data for each survey collected, but also...

04 June 2018 8,786 5 View

When using RDA, why does my explanatory matrix explain a large amount of variation in my response matrix, but is not significant?

15 March 2017 5,983 3 View

Can anyone point me to a reliable NCAM antibody to use on rat tissues for IHC?

I'm willing to do fluorescence or DAB. Rat muscle, snap frozen, 10um cryostat sections.

08 November 2016 734 3 View

How-to on running factorial manova?

21 April 2016 8,391 3 View

Has anyone ever done a protein filtration assay?

20 April 2016 8,349 8 View

Does anyone know of any assessments that tests a teacher content knowledge of reading comprehension and its development?

I found a few tests that assess metalinguistics, language structure, etc but nothing that focuses on reading comprehension.

20 April 2015 1,546 3 View

Can anyone help with tissue harvest for westerns, specifically kidneys?

I generally flush the rat with saline before harvesting tissues for western blots. I have heard that the blood and other components can interfere with blots. Does anyone else flush the animal...

13 August 2014 5,777 5 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

Can anyone help me with the administration of the "Mind the Gap" Scale for satisfaction with transition to adult care?

We are working on a study focused on adolescents' transition to adult care and are looking for a validated measure for satisfaction with the transition. So far the only measure that we have came...

28 February 2021 2,338 1 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View

Is there an open source free software for text mining and sentiment analysis?

I am looking for a free software for text mining and sentiment analysis for my research on customer review mining (it involves calculating polarity of attributes,opinion oriented information...

25 February 2021 1,920 6 View

Which are the journals for free paper publication?

A bunch of flower for everybody. I would like to ask about the list of journals which we can publish our paper for free. Thanks in advance. Sincerely Walid

25 February 2021 9,790 3 View

Suggestions for occupational stress surveys?

I am currently writing a masters thesis on reasons for occupational stress in the early childhood classroom, and want to include a short survey assessing participants work-related stress levels. I...

24 February 2021 8,678 2 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

Hello, does any one know a free medical text dataset?

a free multi label clinical text dataset , containing text as entry and several labels as classes. Best regards

22 February 2021 5,988 2 View

Protocol for membrane extraction E. coli?

Hello! I am interested in determining whether a poly-unsaturated fatty acid I have engineered E. coli to produce is being incorporated into the membrane of the cells or if it is simply a free...

21 February 2021 7,447 2 View

Can anyone recommend which is the best free questionnaire software please?

Hello, I am looking to send out links to an online survey. My previous research project used a paid for survey software. I am now looking for something that's free but straight forward to...

19 February 2021 5,641 3 View