Science topic
B Method - Science topic
Explore the latest questions and answers in B Method, and find B Method experts.
Questions related to B Method
dear friends,
when the analysis of dairy wastewater ( from milk industry) for oil and grease by partition gravimetric method (extraction with n- hexane) according to APHA 5520 B method, how can we extract the fat part of the sample. fat tends to form emulsion and does not extract to hexane. when you add alcohol to break the emulsion, it is with the aqueous layer ( not extract to hexane layer).then the oil and grease value is less than the expected value.
Dear colleagues
A) I have a sample (n=132) and I performed a multiple logistic regression. I have 1 dependent variable (dichotomous variable: yes/no) and 6 predictors (2 continuous variables and 4 categorical variables) in the final model.
B) I have another sample (n=75) and I performed a multiple logistic regression. I have the same dependent variable and 6 predictors.
The two samples are totally independent from each other.
I have two questions:
1) How can I see that which model are significantly better than the other one? Higher Naegelkerke R2? Or how?
2) I have to plan a study with a sample size calculation? I would like to prove that the B method is better. G*Power is not optimal and cannot calculate the necessary sample size in this specific case.
Thank you in advance.
Zoltan
A very good afternoon, :)
I apologize for coming straight to the question without any introduction. Actually I could not think how to start.
So the question is: To write a (good) better Doctoral thesis, which parameters needs special attention and which ones need to be avoided?
My second question is how to write the introduction section? This particular part seems too difficult to start and arrange.
Please guide me in this regard.
With regards,
Bhaskar Ghosh
Hi there....I am looking for the complete sequence of chitinase or cellulase coding gene for Scytalidium thermophilum .....any help will be appreciated
The 40-minute interview is about a lecturer's experience with teaching tertiary international students. I find what I said in the interview might be very interesting and helpful to my colleagues and my students.
I want to find out if GTM can be incorporated in the conventional teaching case method?
It would be of great help for a doctoral student I know.
How to formulate the entomopathogen Beauveria bassiana to bioinsecticide?