Experiment or Quasi Experiment Design?

What kind of study design are we talking about? Subjects are randomly assigned to one of three groups. In addition, a moderator and a mediator are collected as continuous variables. Is this an...

15 January 2021 1,809 4 View

What is the best solvent for the extraction of chemical compounds that have an insecticidal effect ?

What is the best solvent for the extraction of chemical compounds that have an insecticidal effect ?

26 November 2020 4,609 15 View

Nvivo - how to extract and analyze hashtag?

Hello, I am using Nivo 12.0 plus. I've a dataset of tweets, unfortunately not extracted by NCapture. How can I extract and analyse hashtag? Is it possibile using auto-code functions? Thank you

19 August 2020 9,532 3 View

What is a scoping review?

In what context should we choose to do a scoping review? How is it different from systematic review, literature review, mapping review and Cochrane review? What are its mandatory or optional...

05 July 2020 8,206 3 View

If I use REVEL score as a meta-predictor for clinical variant classification, what would be a reasonable cut-off to filter disease variants?

Ioannidis et al., 2019, reported the development of the REVEL score (rare exome variant ensemble learner) for redefining pathogenic variant classification, and Tian et al., 2019, reported that...

29 March 2020 2,450 2 View

Is there a method to statistically compare two or more regression coefficients in paired data?

Hello, I have conducted simple linear regression for four time points, always on the same sample. My time points are 10 years apart and now I wish to compare the slopes / betas / regression...

21 March 2020 10,020 9 View

Is the Case Study Method eligible to create theory?

I have been conducting research for PhD Theses using case study as a method, mainly refer to Robert K. Yin works. At the final step of my research, I define some concepts and use the concepts to...

12 February 2020 3,146 10 View

Can I find a supervisor at the University of Chinese Academy of Sciences ?

I wish to apply for a doctoral degree in Soil Science at the University of Chinese Academy of Sciences (UCAS), can somebody suggest for me a supervisor at the Institute of Soil Science?

20 January 2019 538 3 View

What is the blue-shift in UV-vis?

hello, Im having trouble in extracting information from my uv-vis data. The sample the I analyzed is protein corona. Before that, I already characterize 40 nm of gold nanoparticle and obtain its...

15 May 2018 8,815 7 View

Does someone have neuronal cell cultures of zebrafish?

I plan to use immunohistochemical methods to stain brain sections from adult fish (teleosts, starting with zebrafish). In order to validate the antibodies I would like to test them in a 2D-celll...

10 September 2017 6,280 1 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

Does anyone know to clarify these changes?

01 March 2021 1,290 2 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View

I have need of XRD graph analysis software for phase identification. Can you please provide links for software tools which can be downloaded?

i am trying to download x'pert high score software, but can't download it. please do suggest software for phase analysis

24 February 2021 5,687 4 View

Why the CHi^2 is close to zero with a bad fitting but the Rp and Rwp are still high?

I am refining my XRD data using in FullProf program. The intensity of the modulated X-ray peaks is almost flat. I tried to adjust the peak intensities but unsuccessful. What is the reason? I guess...

23 February 2021 2,304 4 View