How to explain Epi Info Population formula?

Dear, I am using EpiInfo to analysis survey data. However there some issues that I still do not know how to figure out. What is the formula used to compute the Population survey. I found one n =...

10 November 2019 1,879 2 View

How does one compute IC50 value?

How to compute IC50 value of a solution automatically I performed experimentation, determining the percentage of bacteria growth in presence of different plant extracts and at different...

07 August 2014 4,708 3 View

Which statistical analyzes choose?

I want to perform test about anti-tumoral activity of triple dozen of plant extracts, with reference compounds. I have been told that before doing anything, I better choose the statistical test...

05 June 2014 9,399 2 View

What is the appropriate procedure to publish your first research article?

I have finished the manuscript of a research paper in French, and I would like to publish in English. But have not targeted a publishing group yet. which one could I choose? Do you have any...

05 June 2014 8,945 4 View

What does the R square coefficient mean and why is there different value when computing with Excel?

Computing the correlation between the concentration of plants extracts and the inhibitory percentage, I used excel software. When I make the Logarithm graph, in dialogue box, it is asked me if I...

04 May 2014 1,408 15 View

In an MTT viability test, what is the concentration of plant extracts that should be used?

I would like to study anti proliferative activity of plant extracts using the MTT test. I wonder which concentration of plant extracts I should used. What parameters should I take into account to...

03 April 2014 2,215 4 View

Why are there so many different methodologies for the MTT test?

I want to carry out the MTT Test, but in the literature, there is no standard test. The methodologies vary a lot from one another. Some people talk about shaking before optical reading, some...

03 April 2014 9,945 0 View

Is there a way to determine the cytotoxicty of a substance after assessing its viability effect?

I want to carry out the MTT test to show the viability effect of plant extract on cells lines. Is there a way to reveal the cytotoxic effects of these same extracts?

03 April 2014 5,167 3 View

What are the more relevant tests for assessing the anticancer activity of medicinal plants?

Anticancer tests methodology.

02 March 2014 2,431 3 View

On a computer running Ubuntu 13.04 OS, how to perform an LHD Fisher/HSD statistical analyses with R?

Software procedures: Make ANOVA 1 Analysis data with R software. Find out "P" and "F" with values during an ANOVA 1 Analysis of experimental data.

31 December 2013 4,846 2 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

How relevant is Mini slump cone?

for all the rheology researchers, my question is, how relevant is a mini slump cone (smaller than a standard 50 cent rheometer). currently based on testing, the thickness of slumped material is...

26 February 2021 3,668 1 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

How to reduce residual stresses in MD simulation?

I am working on a preparation of representative polymeric structures of some popular polymers, such as polyimide or PTFE for MD simulation, during which a single nitrogen or oxygen atom will be...

24 February 2021 8,105 3 View

Suggestions for occupational stress surveys?

I am currently writing a masters thesis on reasons for occupational stress in the early childhood classroom, and want to include a short survey assessing participants work-related stress levels. I...

24 February 2021 8,678 2 View

Can two EC50 values with different hill slopes be compared?

Hello, I fit a classical dose response curve Y=Bottom + (Top-Bottom)/(1+10^((LogEC-X)*HillSlope)) to my data (not related to inhibitors etc). The model I use is purely qualitative but it fits...

23 February 2021 8,155 5 View

Are there any open-source datasets containing physiological information about exercises to be used for an OR-model?

I have just recently started a new "weekend project" in addition to my master's studies and I am looking for a data-set. I would like to use some Operations Research to design an optimal gym...

22 February 2021 8,023 1 View

The most suitable method to calculate the stress intensity factor in the presence of contact between the crack lips?

I'm trying to study cracked structures under a compressive load taking into account contact between the crack lips. I would like to know if the method of extrapolation by displacement remains...

21 February 2021 8,694 4 View