Should I include censored data into my Log-rank test of Kaplan-Meier curves in JMP?

I am disecting my Kaplan-Meier curves, of four different phenotypes of C. elegans, into first 8 days and last 20 days, in order to analyse in which period there is significant difference in the...

02 March 2016 765 6 View

Which database can I use for synteny analysis of a large collection of bacterial species?

I need to do a synteny analysis of 250 genes, belonging to bacterial species from across the whole kingdom, all of which are part of the same superfamily (of genes). Xbase is currently down, the...

07 August 2015 511 5 View

Is it wrong to use 16s rRNA sequences of strains other than the one you want to include in your phylogenetic tree?

Hi everyone. I am trying to create a phylogenetic tree, however NCBI lacks 16s rRNA sequences for some of the strains I am looking for although it does provide sequences for the other strains of...

07 August 2015 8,766 7 View

Is there a solid molecular understanding of why dipoildy might have been essential for the evolution of multicellularity?

01 February 2015 6,200 8 View

What is the best introductory book on thermodynamics for biologists?

11 December 2014 5,658 3 View

Why are biological membranes amenable to sucrose density gradient centrifugation, but proteins are not?

11 December 2014 526 4 View

What is a good introductory book on game theory with an evolutionary biology overlay?

I am looking for a book that is introductory in terms of mathematics, yet does not hesitate to go into detail after a nice introduction, while advanced on the evolutionary aspect. Thank you.

11 December 2014 5,146 15 View

Could quantum entanglement be explained via quantum tunnelling of information?

More precisely through quantum tunnelling of information via the time dimension.

08 September 2014 4,191 2 View

Is parallel computing, using CUDA, limited to certain softwares/programming platforms?

Hi all, I would like to establish parallel computing by using the GPU of my M2000 Nvidia graphics card. I was wondering if this works for all the softwares, in my case bioinformatics softwares...

01 January 1970 5,598 12 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Is there a classification scheme for rock cavities or caverns with respect to their size and shape?

The range of forms and sizes of cavities in rock is very big. Is there a classification scheme for rock cavities regarding their size and shape?

02 March 2021 4,511 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

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

I need dataset for recommandation system?

Hi every body I need to collect datasets from different source to work on recommendation system algorithms, could you advise me how collect data?

27 February 2021 7,063 7 View

I want to performe MALDI-TOF MS for bacterial identification, I would appreciate it if anyone can tell me the matrix solution preparation protocol ?

based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...

26 February 2021 6,799 3 View

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View