Hello everyone
How I could appreciate the efficiency of nitrogen fixation by freely fixing bacteria?
@ Abdellaziz, I think, acetylene reduction assay (ARA) is the best measure of nitrogen fixation by freely living bacteria. The method was found to be positively correlated with the population of free living nitrogen fixing bacteria (R2 = 0.78, p
Gel electrophoresis, RNA degradation, RNA extraction from fresh tissue
02 March 2021 5,433 5 View
This is gel electrophoresis result for total RNA samples with good conc. However, I guess there is a problem with the purity of the samples, i can't figure out why it appears like this? And how...
22 February 2021 338 9 View
I am working on a project for assessing the Antibacterial activity of various chemicals, I was wondering Can i make solution of those components using water as a solvent, depending on the fact...
19 November 2020 7,857 4 View
I have prepared Multivesicular liposomes using the following procedures: Multivesicular liposome formulations for the sustained deliv... Multivesicular liposome (MVL) sustained delivery of a...
18 November 2020 3,189 2 View
How antibodies differentiate according to match every epitope , ie: how takes its shape as a monoclonal
10 October 2020 9,573 2 View
I am conducting an investigation using SEM (Structural Equation Modelling) and I have 4 latent variables and each of which has 7 observed variables. How this affects the parsimony of the model?...
07 September 2020 718 3 View
How to express Nano-fluid in conservation equation of Mass, Momentum and Energy?
07 September 2020 5,903 1 View
Should I report the Path coefficient or Latent variable correlations after bootstrapping as the P value and T-Statistics in the latent variable correlations of two hypotheses are met while in path...
07 September 2020 6,994 2 View
Besides, I have performed different characterization tecniques to my Fe3O4 nanoparticles and all are similar to what is reported in literature. Those characterization techniques include FTIR, SAED...
22 July 2020 8,549 12 View
There are many types of water desalination plants; Reverse Osmosis, MSF, Solar desalination units, ........... etc. How much water does each desalination plant type produce and what is the...
30 May 2020 7,719 4 View
How do I do energy minimization in lammps with NVT ensemble ? I am using the following command and it does not seem to work. It stops at extremely high energy and gives me the error zero search...
01 March 2021 2,294 3 View
Hi there! I regularly receive suggestion about papers and authors that are totally out of my area. Does anybody know how I can fix this? Thank you!
01 March 2021 9,574 4 View
I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...
01 March 2021 6,450 5 View
Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...
26 February 2021 1,100 5 View
I'm a chemistry student and I'm researching the kinetic degradation of mixed plastic waste. I'm having trouble calculating the activation energy by the coats & Redfern method. The data that...
24 February 2021 974 1 View
I have a fixed sample and would like to use the murexide reaction to test for uric acid composition. I no longer have fresh samples
22 February 2021 1,328 1 View
Hi, i am conducting a Monte Carlo simulation for my new distribution but the MSE values are increasing while the sample size increase, does any experience this issue before and what should i do...
22 February 2021 3,680 4 View
I need to take IF images with DAPI on a confocal but I need to use a glycerol fixation. Has anyone done this method before, if so how was it done? Thank you.
21 February 2021 3,081 3 View
I have some fixed slides of tissue and need to do some staining, but I am not sure where to start. There are many protocols online. Any suggestions?
17 February 2021 3,062 4 View
I am currently trying to copy an assembly feature, that is present in an old version of the model I am using, onto a new model. The feature is a reference point that is fixed to an attachment...
16 February 2021 8,872 2 View