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

Why can`t I isolate RNA from Extracellular vesicles?

Hello, I have been trying to isolate RNA from EVs (from MSCs) for a while. I isolate the EVs using SEC. Then I use the "Total Exosome RNA and Protein Isolation Kit" from Invitrogen. When I...

21 October 2020 8,559 4 View

How to directly use a directory of .h5 files as the training set in Python without appending them to a list?

I am trying to append .h5 files saved in a directory for my training set using Python, but I face memory error as the Data set is very large. The following code is what I used for...

23 April 2020 9,649 2 View

To record trajectory tracking performance of a controller, is it resonable to calculate the mean_square_error or the normalized-measn-square-error?

I some papers, the mean square error is considered. In some other, the mse is normalized by dividing the error by the (total sampling instants x the total length of the reference...

25 February 2020 784 4 View

What is the most reliable guide for identification of alternaria species based on morphological and cultural criteria?

what is the most reliable guide for identification of alternaria species based on morphological and cultural criteria?

02 December 2019 174 1 View

How the nonholonomy of mobile robots allow control of the system with less control inputs?

In "Simultaneous Stabilization and Tracking of Nonholonomic Mobile Robots: A Lyapunov-Based Approach", the authors stated that the nonholonomy of mobile robots allows control of the system with...

27 May 2019 7,721 4 View

How to interpret DMA?

18 May 2019 631 6 View

What are the most reliable tools or softwares for designing of the CRISPR gRNAs?

Dear all, Which tool is more reliable? CHOP CHOP or CRISPRdirect? I need some information about other tools and softwares. Thanks a lot

08 May 2019 10,004 2 View

If you could recommend one significant change to make Higher education more affordable without compromising its worth, what would it be?

Higher Education cost is increasing and students encounter some challenges to afford it.

21 March 2019 7,173 6 View

How to match reflection in both visible and infrared?

I have a thin film of a fluorescent material and want to make a reference sample with similar reflection in both visible and infrared to do the comparison. How can I make the reference sample?

26 February 2019 6,857 3 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

Analysis of CRD two factor using R studio ?

Hello everyone. I have conducted the research on post harvest longevity of tomato crop using plastic packaging and different doses of chemicals as two different factors. The design of experiment I...

28 February 2021 8,189 3 View

How, if at all, can R scripts/packages be used to perform cluster analyses and motif analyses on digital trace data?

02 February 2021 728 3 View

Unbalanced panel data fixed fir effects and industry-by-year fixed effects. Is plm package suitable? or lme in rstudio?

I am not sure if an unbalanced panel data set doesn't give me good results. Do I have to have all years of my panel data? How do I select the variables? I only select those where I have no missing...

30 January 2021 7,258 6 View

How to plot Random Forest model as raster prediction map in RStudio?

Output_raster

27 January 2021 7,974 3 View

Why is there no ANOVA output for a certain predictor variable in my GLM (in R)?

Configurations: Rstudio v1.3.1093 Packages: car, lme4, MuMIn, DescTools Model: myGLM

22 January 2021 5,284 6 View

Which statistical test to use for comparing percentages between multiple groups?

Hello everyone! I am looking for some statistical help! I am working in in vitro micropropagation and one of the aspects that I am studying is the rooting of plants in 10 different growing media....

14 January 2021 7,575 5 View

[SEM] Why RStudio and AMOS report different p-values (but same estimates)?

Hi everyone, I have conducted a SEM analysis in AMOS then replicated it in RStudio. While I obtained identical estimates and model fit statistics, the p-values differ between software programs...

25 December 2020 3,669 4 View

Subgroup/Subset meta analysis in R?

Dear researchers, I am conducting a meta analysis with subgroup or subset analysis using Rstudio, the data consists of 11 articles(6 articles for first drug, 3 articles for second drug and 2...

08 December 2020 5,397 7 View

How to select negative values in row?(at least two negative values & more together) in Rstudio?

hello my dear friends i have a time series includes 324 month (SPI values) i wanted to extract and select them like this picture in R studio, i don't have any idea which package or command to use...

20 November 2020 916 4 View