How to recrystallization amine compound and it is not soluble in common organic solvents ?

How to recrystallization amine compound and it is not soluble in common organic solvents ?

19 January 2021 671 3 View

What is the ACTUAL COST OF A PUBLICATION??

Hi. It's 2021 January. Recently, I got to know that Elsevier has converted around 160 journals into some "Transformative Journals" and follow the recommendations under "Plan S"...

19 January 2021 9,985 2 View

What if an author has concluded wrong facts in his article and published in Elsevier ?

The question is that in what form of publication we can show true facts and prove the wrong facts invalid ?

29 December 2020 9,727 7 View

What is the difference between filler and fiber?

Explain in correct manner

28 December 2020 5,199 2 View

What should be done if someone 100% copied our article and published in a predatory journal ?

28 December 2020 8,982 10 View

Advantages and Disadvantages of Submitting Article in Special Issues of a Journal ?

What are those ?

21 December 2020 7,757 4 View

What is U matrix for Hosking & Wallis discordancy test based on L-comoments?

Hello everyone I would compute Hosking & Wallis discordancy test based on L-comoments for multivariate Regional Frequency Analysis. Please help me by answer to these questions. 1- Is that...

28 November 2020 8,152 2 View

In microscopy why "smaller the aperture, greater the depth of field"?

12 October 2020 3,636 2 View

How is the resolution of an image affected by the NA of the lens in microscopy?

NA= Numerical Aperture

12 October 2020 2,514 2 View

Which will have a larger Depth of Field: A Light Microscope or an Electron Microscope? Why/How?

The depth of field is the range of distance along the optical axis in which the specimen can move without detectable loss of sharpness.

11 October 2020 4,623 2 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What kind of intervention will be relevant to increase motivation among young sport trainees?

Any suggestion on what book to read is also welcome.

03 March 2021 1,646 4 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View