How can I train a toddler to be excellent in numbers and science?

04 April 2018 0 10K Report

How can I train a todler to grow up, loving, liking and excelling in numbers and sciences? Please help with your knowledge from experiences or literacy

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Please, any lab in Tanzania that is currently doing cytotoxicity tests on cancerous cell lines?

Please, any lab in Tanzania that is currently doing cytotoxicity tests on cancerous cell lines? Kindly let me know Regards

10 November 2018 3,023 0 View

How do I further isolate uncoloured fractions that show peaks on HPLC?

Hello Colleagues, I have several fractions (Hex:EtAc). In one small fraction (about 2mls), I got 6 peaks on HPLC. What do I need to do further or how do I need to separate these compounds,...

09 October 2018 1,547 8 View

How can I prepare a preparative TLC plate (PTLC) using silica gel? or where can I buy already prepared PTLC plates?

Dear Colleagues, Please help. How can I prepare a preparative TLC plate (PTLC) using silica gel? or where can I buy already prepared PTLC plates (Close to Malawi)?

08 September 2018 3,606 3 View

At what point does sequential solvent extraction make more sense? At crude extraction or fractionation?

Dear colleagues, At what point does sequential solvent extraction make more sense? At crude extraction or fractionation stage? One other thought would be to do crude extraction using MeOH and do...

07 August 2018 3,616 4 View

What is the best way of working with extremely busy co-authors in a manuscript?

Dear researchers, Sometimes we have to work with our highly respected co-authors that are extremely too busy to give time to our manuscriots, but for some important reasons, they have to be on the...

05 June 2018 9,949 22 View

What are the most common non-material addiction drugs you know?

What are the most common non-material addiction drugs you know? - Please share if you know any conventional drugs on the market

05 June 2018 2,728 0 View

What is you experience/knowledge about crossing borders with research plant sample extracts?

What is your experience/knowledge about crossing borders with research plant sample extracts? - Any challenges? - Noteworthy details? Please share Thank you and kind regards

05 June 2018 2,226 0 View

Which is better to extract: From fresh or dried plant samples?

which is better to extract from fresh or dried plant samples?

05 June 2018 529 0 View

Is it worthy spending resources on researching orally and intravenously effective drugs from polar compounds?

Dear researchers, I understand that we can get drugs from polar compounds, but these are usually hardly bioavailable. This means the drug has to keep being modified to improve it's bioavailability...

05 June 2018 9,842 6 View

Do you know any medicinal properties of chlorophyll?

Do you know any medicinal properties of chlorophyll? Please share your ideas

05 June 2018 6,720 11 View

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 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

Is there any research regarding how training and development is going to change in the era of Fourth Industrial Revolution?

As the organizations getting prepared for the fourth industrial revolution, to enhance the skills of their workforce what type of changes are necessary and going to occur in the training and...

01 March 2021 3,199 3 View

Which group formation theory do you recommend for projects that aim to bring together entrepreneurs for training for regional development?

I would like to have ideas about which theories of group formation are suitable for entrepreneurial training projects, with the aim of creating bonds, building trust, and collaboration for...

28 February 2021 4,223 2 View

Satellite orbit estimation using Recurrent Neural Network - what should I use?

Hello, I am a master's student studying in Yonsei Univeristy, Korea. I am trying to estimate the state of satellite, using Neural Network. Below is a simple flow of my study. 1. Train (t0 ~ t1)...

23 February 2021 6,383 3 View

Can the problems of overfitting be solved without cross validation?

For an overfit data set the cross validation error will be much bigger than the training error. Is it true or false?

23 February 2021 3,616 2 View

Why cannot world and community leaders be gentle? Where did ethics of care go?

The whole world is in a mess and paused. We all are tired of seeing hypermasculinized and destructive leaderships all around us. This world has seen enough of the aggressive patriarchal social...

23 February 2021 292 7 View

How to assure whether a regression tree overfit or not by seeing bias-variance value of the model?

Lets consider a regression tree in which variance is 1.1065*e-10 and bias is 2.962e-13. Also the model RMSE on training set is 1.5e-5 and on training set is 1.2950e-5. Is the model is overfit or...

22 February 2021 7,755 2 View

In Machine Learning, isn't the problem Out-of-Distribution (OOD) instances really a form of over training?

If (1) the over training manifests itself in failure against instances that are new or excluded from the training set, and if (2) OOD instances are problematic because they are new and by...

18 February 2021 4,839 2 View

Any methods to train a neural network with random (stochastic) and non-measurable variable?

Dear scholars, I was wondering if there are any scientific methods to train a neural network or ANFIS when one of the input variables is stochastic (random) and more importantly non-measurable?...

17 February 2021 1,909 3 View