What are the software/tools available for SEM image analysis of bacterial biofilms?

Dear Researchers: Greetings! I am interested in learning electron microscopy image analysis of bacterial biofilms, mainly using open-source software. I have been using basic functions and tool...

28 May 2020 5,572 4 View

The condition has length > 1 in ifelse in r?

When the condition has length > 1 in ifelse in r and there are more than 2 statements how to use ifelse? I have a data set wherre I want to categorise people in to categories using sveveral...

04 March 2020 4,811 6 View

When we are using already available records, in a retrospective cohort study the sample size calculation to be done in which formula?

I have started a study of record available at clinic collected years back.So it seems to be a retrospective cohort study.But when calculating sample size I feel like it to be done in normal cross...

12 August 2019 866 3 View

Can machine learning methods to model time-to-event data?

08 May 2019 7,631 2 View

How to convert SNP data in microsoft excel into hapmap?

I have a big data set of SNP in excel format, how can i convert them into hapmap

01 March 2018 2,605 1 View

Kindly suggest some international journals in the area of "biological control of insect"with a condition that they shouldn't charge publication fee?

suggest me some journal names

17 March 2017 9,906 4 View

Can someone suggests good molecular markers for population genetics of leafy liverworts?

i'm looking for good molecular markers on populaion genetic studies of leafy liverworts

27 February 2017 6,106 1 View

How to find perturbation matrix for singularly perturbed LTI system?

what is e-embedding techniques used for separation of slow and fast variables?please provide some books or papers which has clear explanations in this topic

17 January 2017 5,138 2 View

How to interpret three way ANOVA significant interaction effect (none of the others are significant) ?

I conducted 2*2*2 experiment and only main interaction is significant (2*2*2). All the other interactions and direct effects are not significant. Please let me know the steps of interpreting the...

12 May 2016 2,260 4 View

In a multi choice assay against pod borer, some genotypes have bore holes and in some it was absent. how the data can be analysed ?

25 different genotypes were used

20 April 2016 6,746 3 View

How the wettability of rock sample can be changed by ageing in pure hydrocarbon oils only?

I want to do wettability analysis of hydrocarbon oil (octane)/rock/surfactant solution system. but to do the analysis first I have to make rock surface oil-wet. Since hydrocarbon oil does not have...

27 February 2021 5,383 3 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

How can Gamma Ray API units be converted to CPS (counts per second)?

Oil and gas companies run gamma ray tool and take readings in API units while Gamma ray is also noted in cps, so how these units can be converted into each other?

24 February 2021 7,545 2 View

How to remove compound ( Europium complex ) from paraffin oil?

How can I remove my compound from paraffin oil? Mistakenly my compound fell in an oil. Compound = Europium complex

22 February 2021 5,667 2 View

When I mix oil and NaOH solution, Why solid layer in the surface is formed?

During my trial for lubricant oil re-refinery process, I use NaOH as coagulant agent. After overnight of gravity settling, a solid layer in the surface was form. what product is that? since the...

22 February 2021 2,116 4 View

The type of filter paper used to filter an epoxidized oil (the mixture is an epoxidized oil with magnesium sulfate) ?

I have a mixture of epoxidized oil and magnesium sulfate wich type of filtre paper should i use

21 February 2021 3,944 3 View

What reaction will occur when adding hexamine into ammonium nitrate in an acidic medium?

Hello, I am investigating properties of water in oil emulsion explosives. And adding hexamine (hexamethylenetetramine) into one of the phases that are used to make the emulsion should increase the...

21 February 2021 8,680 1 View

How can we study the adsorption efficiency of microgel at the oil-water interface?

I am studing the mircogel at oil-water interface. I want to know the adsorb amount of microgel at the oil water interface. How we can determine this amount?. I will highly appreciate your...

19 February 2021 2,787 1 View

Does anyone know, can i do cryosectioning of whole aorta after oil red O staining and use the cryosection parts for further analysis?

I would like to quantify the lesions on aorta. I want to take image of atherosclerotic plaques formation in aorta by using O red Oil Solution. After the staining, what will be the storage...

16 February 2021 5,876 2 View

Can any one explain why the ethyl ester Biodiesel (FAEE) has higher than that of the metyl ester FAME- both of them are derived from the same oil?

Biodiesels derived from waste vegetable oil transesterification with Ethanol (FAEE) show higher peroxide values than those derived by transesterification with methanol (FAME) prepared under the...

13 February 2021 193 6 View