Are there commercially available GFP-Expressing HUVECs for angiogenesis assay which have not been infected with lentivirus?

Dear all, I am interested in setting up an Angiogenesis assay on our Essen IncuCyte system but the cells which are recommended are infected with Lentivirus which we can not use due to our labs...

29 November 2020 2,350 1 View

Interaction terms and singularity errors?

Hi, I am currently trying to produce a linear regression model. I have used hierarchial regression stechniques to produce a multivariable model. I have then looked for interaction terms and added...

03 December 2019 4,201 3 View

Best Protocol for Biosynthetic Gene Cluster Heterologous Expression?

Hi, Does anyone have any recommendations on what methodology to use for the direct cloning and heterologous expression of a 69kb NRP gene cluster from Gram-positive bacteria? Thank you!

06 November 2019 3,179 3 View

Please suggest how one can create social attitude change in an environment where corruption and embezzlement of funds is acceptable?

Kenya is currently experiencing unprecedented corruption scandals and the public seems to have given up on fighting it. How can we create an attitude that corruption is not profitable in the long...

28 March 2019 4,315 2 View

Designed primers ran on a gel, not working?

Hi, I am looking for advice. I designed my own primers for human TBP, TGFB1 and ITGB6 Gene's. To test my primers I ran a PCR and gel, however, it didn't work. Does anyone have any solutions? I...

20 March 2019 3,950 3 View

Does anyone know what this rectangle on my western blot is?

I have been running western blots to verify the presence of a protein in my co-IP but a strange rectangle keeps showing up on my membrane and blocks the signal when I image it. I reran my western...

16 January 2019 847 4 View

Caco2 cell line passage number and Pgp presence?

What is the passage number of caco2 cell line that has the highest expression of Pgp? I remember that there was a range at which the expression increases but after that passage number it is no...

11 September 2018 7,436 1 View

How do I clear Mycoplasma arginini contamination from my viral RNA sample for NGS sequencing?

Hello, I have extracted my RNA from a virus and I want to sequence using NGS, the RNA sample has Mycoplasma arginini contamination. I would like to eliminate the bacterial contamination before...

06 March 2018 7,380 2 View

C10 cells not growing?

I just started working with an immortalized C10 cell line. The new batch was defrosted by standard methods but is not growing. Often not dying, but not proliferating. Cells have long projections...

11 September 2017 3,317 3 View

Anyone know how to do a data dictionary for a System Dynamic model and develop a user friendly web based tool for public use of the SD model?

What software to use, previous works done in the same area?

28 May 2016 8,155 4 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

Why am I not able to use all VEP programs for the in silico analysis of avpr1b SNP's?

Good day researchers I am busy analysing the predicted effects of certain SNP's in AVPR1b. When using the VEP prediction programs (SIFT, Polyphen, FATHMM, LRT, Provean, Mutation Assessor, and...

28 February 2021 5,197 1 View

Your thoughts on the spherical densiometer to estimate relative species canopy cover?

Hi biologists and biogeomorphologists, I want to characterize vegetation plots on a transect that follows a successionnal gradient from a river bed to a mature forest. Ecologically, I am...

26 February 2021 5,720 2 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

Bayesian decision trees and bayesian regression trees in Python and/or R?

I am looking for implementation of bayesian decision trees and bayesian regression trees in Python and/or R.. Do you know if the existing libraries support this

23 February 2021 6,689 3 View

Any Differences in COVID-19 vaccines?

Are there any differences (outside of the clinical trials that led to their EUA) observed in the rate of infection among those who have received the Pfizer vs Moderna vaccine since the mass...

22 February 2021 9,727 6 View

How to assure whether a regression tree overfit or not by seeing bias-variance value of the model?

Lets consider a regression tree in which variance is 1.1065*e-10 and bias is 2.962e-13. Also the model RMSE on training set is 1.5e-5 and on training set is 1.2950e-5. Is the model is overfit or...

22 February 2021 7,755 2 View

Could anyone help me with a SNP primer desing?

16 February 2021 3,049 3 View