What is the best method for alkaloid extraction?

A student of mine is doing her thesis and needs to perform alkaloid extraction from a set of officinal drugs and has asked me for the best way to perform it. Now, the two main methods I can think...

06 November 2020 3,086 5 View

Do you know Psychometric Test or questionnaires specifically designed to evaluate tennis players?

28 September 2020 6,850 7 View

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

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

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Why should we choose deep learning to machine learning? Why is CNN better for image classification? Can I get Typical Answer?

What Characteristics makes CNN work better?

03 March 2021 1,458 4 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 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

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Can you share me how teacher education is managed in your respective national educational system?

I feel that the practice in teacher education in my country is below the expected performance level due to very poor management system. Hope I will learn something from your experiences.

02 March 2021 1,516 4 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 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