Where can I see the formula for determining the minimum sample size for estimating the average random variable distributed according to some law?

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What are Extensors of space and time in Generalized Thermodynamics?

Generalized Thermodynamics, which formulates the most universals laws of nature, assumes separation of all fields variables into conservable 'extensors' E and 'intensials' P linked by energy dU =...

20 October 2020 8,117 4 View

Why does the failure curve have a steep descent at its beginning?

It does not depend on the nature of the object: from a rivet to a human. Why does any kind of life and man-made things obey one law, according to which the entity, newly arrived in the world, has...

31 July 2019 5,215 6 View

Is it possible to determine quantitative composition of mixture by intergation of TIC chromatogram?

I'd be grateful if you will provide me some literature data about quantitative analysis of mixtures using TIC chromatogrames.

29 January 2019 8,652 13 View

What strain to use in cloning with araBAD promoter and gene of interest(1000bp) that is complementary to the region on the same plasmid?

I am trying to insert into PBR322 araBAD promoter with my gene of interest(it should be inducible). Could you please tell wether I could use DH5alpha strain as I was told it lacks arabinose...

28 January 2019 3,370 4 View

Who knows how to change computer atomic operations (a+b,a*b...) to new ones?

I seek advice from computer hardware/software specialists how to change atomic operations (a+b,a*b,a-b,a/b) to other ones on a hardware or core software/bios/OS levels. For example, a+b should be...

20 March 2018 2,001 3 View

How can i confirm presence of crystalline phase inside the glass volume?

If the volume fraction of crystals is so small that XRD doesn't show it. Any method beside HR TEM?

10 July 2017 3,027 10 View

What are the typical values for dislocation velocity, density of dislocations, and/or strain rate in plastically deformed graphene at room temperature?

...

23 June 2013 757 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

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'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

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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View