How can I compare the medians of groups with different sample sizes?

I have two different groups: one that contains the number of ostracod species from mudstone samples (36 samples), and one that contains the number of ostracod species from siltstone samples (120...

22 June 2020 9,945 27 View

How to infer Causality in a observational data?

My Machine Learning model show in different ways, high correlation between parents' education and student's outcomes. I 'm trying to identify a causal relationship in a separate model since the...

11 June 2020 4,186 7 View

"GRADE in a systematic review without meta-analysis?

In a systematic review without meta-analysis, should I necessarily indicate the quality of the evidence (GRADE) for each study included in the review?

31 May 2020 3,400 9 View

How can I assess a method that returns high-expressed genes?

Hello, I working with a method that finds high-expressed genes in a single-cell experiment. How can I assess such method? I know I can compare it with the ones in literature (t-test, regression),...

22 February 2020 3,023 2 View

What is photogeology?

Belongs to Geology and Remote Sensing? What are the main references available for free (pdf) in this field of knowledge? Is it still a usual field within geology? Best Regards.

16 August 2019 9,706 18 View

Geological Map or Stratigraphic Map?

What is the conceptual difference between Geological Map and Stratigraphic Map?

11 August 2019 2,082 27 View

How to make pbm pakhira index on excell or matlab?

How to make pbm pakhira index on excell or matlab? I am doing groupings by the fuzzy c-means method and would like to validate the degrees of membership by the PBM method, can anyone help me?

08 August 2019 9,014 2 View

Does anyone know how to indicate a free reference on free geotechnology? Which conceptually encompasses all free geotechnologies?

Does anyone know how to indicate a free reference on free geotechnology? Which conceptually encompasses all free geotechnologies?

03 June 2019 2,654 10 View

X-ray panoramic dataset ?

Hello, I am having some trouble to find some good dataset related with panoramic x-ray image.

12 April 2019 1,524 4 View

Can anyone indicate a cosmid vector available from AddGene for gene expression in Pseudomonas or Gram-negative bacteria?

Can anyone indicate a cosmid vector available from AddGene, similar to pJRD215, for gene expression in Pseudomonas and other Gram-negative bacteria?

03 April 2019 3,484 2 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 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

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 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

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 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

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