How to plot upper bound and lower bound limit curves of trendline in MS Excel?

To obtain upper and lower bound curves for trendline of scattered plot.

10 May 2020 2,117 1 View

Does keeping tissue sample (patient biopsies) in Trizol for a long time (>6 month) degrades DNA ? or Leads to sheared DNA?

I am trying to isolate RNA and DNA from the tissue biopsy stored in Trizol at -80 degree for more than 6 months . I isolated RNA using the standard Trizol method and obtained good quality and...

22 November 2018 2,446 2 View

Why are my gel pieces not getting destained for in-gel digestion?

My gel pieces are not getting destained. I have kept it for more than 6 hours now. I m using 50mM Ammonium bicarbonate and Acetonitrile in ratio of 7:3.

07 May 2018 5,419 1 View

How to properly store the sds gel pieces for in gel digestion?

I have already cut the gel pieces and would like to perform in gel digestion in future. So I had freeze them in 1% acetic acid. Can I still process those samples?

15 January 2018 1,120 1 View

Is proteomic data analysis in R (using RforProteomics) better than any other proteomic software?

My project involves analyzing proteome of my sample. I have more than 100 samples for analysis. Would proteomic analysis in R help me? Is it better than other softwares?

04 January 2018 2,591 6 View

I want reference of first paper of NiO/ZnO nanocomposites?

i want to know from were work on ZnO/NiO nanocomposite had started.

26 September 2017 3,538 3 View

What is the difference in the XRD of doped material and nanocomposites of mixed metal oxide?

25 September 2017 6,060 9 View

Reading Multiple Files for Text Mining in R Using TM Package?

01 March 2017 4,914 3 View

Which is the best software to design nested PCR primers?

I have to perform 5' RLM-RACE for target validation of chickpea miRNAs. Which primer design softwares have the option for designing primers for nested PCR?

04 July 2016 3,192 4 View

I require some guidance regarding a system that can recognize a user by their speech. Is there a tool or python package to do so?

1) The idea is to recognize context out of a conversation about a topic. For instance if two people are talking (assuming without overlapping their voices), it should be able to differentiate...

02 July 2016 1,195 3 View

How can I set up a good fit SEM model in AMOS?

I am trying to make an SEM model in AMOS for my dissertation but having some trouble with getting a good fit. I am looking for relationships between self-efficacy reported on a Likert scale and...

26 February 2021 8,642 4 View

Is it possible to obtain a negative cronbach alpha?

Good evening everyone. If a questionnaire has 4 factors measuring different constructs as for example CAMI questionnaire measuring attitudes toward the mentally ill that has four factors:...

18 February 2021 3,223 3 View

Can I use a categorical covariate in a Generalized Linear Model in SPSS v.26?

Hello everyone, hope you are well. I am planning to use a Generalized Linear Model in SPSS. I would like to add gender to the model as a covariate, however from what I have read, only continuous...

14 February 2021 8,937 4 View

When to include covariates?

Hi it's me again! Coming to you with a question about including covariates in a model. So I'm running a mixed effect model in my longitudinal imaging data. I have 4 possible covariates to...

11 February 2021 1,404 1 View

How reliable are degrees of freedom for lme mixed models in nmle package?

I am running mixed models analyses because I have participants nested in groups. Across the different analyses, I have very different degrees of freedom in the lme output with nlme package (and...

09 February 2021 6,767 3 View

Does SSMPCA toolbox (scanvp) provide a module to perform the bootstrapping procedure to estimate the reliability of the covariance pattern?

I'm learning to perform the multivariate covariance analysis with SSMPCA toolbox (scanvp/ssmpca, www.feinsteinneuroscience.org). The step-by-step procedure to obtain covariance pattern and...

08 February 2021 2,383 1 View

To what extent do I need to justify my control variables?

Hi everyone, I am writing a research proposal for my masters applications and am in dire need of guidance. I suggest to quantitatively investigate the potential correlation between feminist...

05 February 2021 3,666 8 View

How to obtain confidence intervals in Amos?

Dear all, I would like to know your opinion on the following issue I am struggling with. I am estimating a multigroup model with several factors all correlated among them (they represent...

04 February 2021 1,381 4 View

AMOS - Question regarding correlated errors in CFA, what next?

Hi all, Hopefully this is just a quick question for those of you au fait with CFA in AMOS. I am brand new to this. I'm looking at model (small sample size, yes I know) with 5 latent variables....

26 January 2021 4,425 2 View

How to adjust a covariate in meta-analysis?

Suppose I am meta-analyzing proportions using their logit transformations. We did a meta-regression of the covariates age, gender, and disease severity score in studies and get respective beta...

11 January 2021 9,409 4 View