To what extent the ecological change could generate a substantial adaptive evolution on a short time scales (20 to 30 years or within few decades)?

07 August 2016 3,291 16 View

How one can calculate these climate indices?

Recently, many climate indices are known. If one has climate data for a number of years and would like to calculate one of the climate indices, which climate index is achievable with the daily...

03 April 2015 2,652 2 View

What are the differences between variable and parameter?

Statistically, we use both terms. I would to like to ask on when we say that's a variable may change over time but this is a parameter which is a constant for a certain time or certain conditions,...

02 March 2015 7,236 4 View

What are the added roles of stem cell in curing diseases?

Although the role of stem cell is not new, but I would like to discuss what are the added benefits from 1998 till now after the capability of the scientists to remove stem cells from human...

01 February 2015 5,898 1 View

Why microorganisms consume first the preferred sugar then start in inducing genes to metabolize the less preferred sugar?

01 February 2015 2,306 0 View

How to write an application for a research project for DFG?

01 February 2015 6,659 1 View

What is the gene for Gerstmann-Straussler-Scheinker disease or GSS?

I would like to ask on this gene, what its role in causing death? and if anyone knows any way for treatment or prevention the disease induced by this gene?

01 February 2015 837 1 View

What are we doing to cope with the fast growing of the world's population? and What are its predictable impacts?

01 February 2015 4,188 2 View

Is it possible to transform the chlorophyll to hemoglobin outside our bodies?

I would like to ask on the possibility of transforming the unstable water soluble magnesium-compound (chlorophyll) to the iron-compound (hemoglobin) as the chlorophyll molecule closely resembles...

01 February 2015 1,664 4 View

What are the main properties used for determining index soil properties for an area? How can one calculates it?

01 February 2015 7,267 7 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 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

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

How to upload pdf of my articles published?

How to upload pdf of my articles published?

03 March 2021 2,183 3 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Would adding books published in Lambert Publishers increase my RG impact?

There are some books published in LAP. Shall I add it to the RG?

02 March 2021 2,753 1 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