Why are nanobubbles typically negatively charged?

Nanobubbles of air in water tend to have a negative charge. Intuitively, one could think the water is not charged, air is not charged: why are nanobubbles charged? Looking closer, water has both...

14 January 2021 3,563 3 View

Should ResearchGate and similar networks remove predatory journals from their pages?

See lists of potentially predatory journals at http://scholarlyoa.com/publishers/ http://www.sciencemag.org/content/342/6154/60/suppl/DC1 and the following...

06 July 2015 8,349 19 View

As a user of DMDX, how useful do you find the contribution of Visual DMDX? What is missing or what should be added?

See visualdmdx.com. DMDX is a widely used scripting language to program and conduct psychology experiments on Windows computers.

05 June 2014 187 0 View

Journal impact factors are influenced by other factors than article impact, e.g. size and time. Do you agree?

As an example see this article: http://scholarlykitchen.sspnet.org/2013/06/20/the-rise-and-fall-of-plos-ones-impact-factor-2012-3-730/

11 December 2013 5,379 3 View

Has anybody an idea about a positive control for a stimulation with recombinant CD70 (except cytokine release)? Possible stimulation of Lymphocytes?

we have soluble recombinant human CD70 and look for a positive control to validate the sCD70

15 October 2013 6,909 1 View

The Association of Internet Research just published a new ethics guidelines document. What is missing, what is questionable?

The doc is at http://aoir.org/documents/ethics-guide/. The guideline seems to draw mostly on US-based literature and approaches and practices common within Northern America and thus may need an...

02 March 2013 5,112 2 View

Is there research on typical daily activities of researchers?

Anything: activities by field, schedules, percent time devoted to activities, etc.

02 March 2013 7,600 3 View

Any new suggestions for "Dos and Don'ts" in Internet-based experimenting?

I am updating on my 2002 articles and am happy to take any input.

11 December 2012 869 9 View

There is a weakening relationship between the impact factor and papers' citations - what do you think?

09 October 2012 4,692 34 View

Nobel prize winner Kahneman challenges Psychologists in Nature, in particular priming research. What do you think?

Http://www.nature.com/news/nobel-laureate-challenges-psychologists-to-clean-up-their-act-1.11535

09 October 2012 9,462 11 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

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 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

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

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

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

Ideas for Phd's Thesis on pricing (Marketing)?

Hi everyone, I'm studying Marketing and I would like to write my PhD thesis on the topic of pricing. Any specific ideas?

02 March 2021 9,706 5 View

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02 March 2021 3,060 3 View

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02 March 2021 932 1 View