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

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

Challenges with Big Data research?

Handling, access, meaning...

31 December 2012 380 1 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

Which of the Covid-19 Vaccines would elicit the best immunoprotection and why?

I want to know which of the available Covid-19 Vaccines would elicit the best immunological response and why

02 March 2021 1,388 3 View

Experimental Design: How deal with pseudreplicates with immunological and clinical-chemical paramaeters?

Hello everybody, I am investigating the influence of a toxinon various clinical-chemical and haematological parameters in fish. I have three treatments (control, low dose, high dose) in my...

24 February 2021 1,243 1 View

Looking for advices and tips to improve the staining and the gating strategy in human blood?

Hi, I am staining a human blood with CD19, CD3,CD14 and CD16. My gating strategy in FlowJo goes like this: - First, I gate a general population SSC-A VS FSC-A => Then gate for single cells, =>...

21 February 2021 5,724 4 View

What is the difference between human umbilical vein endothelial cells (HUVECs) and bone marrow endothelial cells?

Hello I am new to work on endothelial cells, and I have been reading about them a lot and trying to know the difference between human umbilical vein endothelial cells (HUVECs) and bone marrow...

28 January 2021 8,765 4 View

Can you polarize Jurkat cells into different T helper subsets?

I am wondering if anyone has had success with in vitro polarization (via cytokines) of Jurkat cells. My goal is to understand the affect of a drug on Treg induction and differentiation. I...

12 January 2021 3,606 2 View

What is the use of left and right border sequence in Ti plasmid?

I know they are required for the transfer of T-DNA and are transferred along with it. But how is it useful exactly, apart from transfer. And how are they cleaved

29 December 2020 8,446 4 View

Are these fungi or is it just medium impurity?

I just thawed my 4T1 cancer cells and 24 hours after seeding the cells in the T25 flask there were somethings beside my cells. The culture medium is pretty clear and there is no more than 6 or 7...

28 December 2020 5,928 3 View

Can only the spike protein of the virus provide immunity?

Virology, microbiology, immunology, vaccine

21 December 2020 424 16 View

Can somebody recommend me a decent textbook to learn more about signaling pathways and their mechanistic principles in general?

I studied biochemistry and molecular biology in my bachelors and Immunology in my masters. I never came across a suitable course for general signaling pathways and principles. My interest is...

13 December 2020 5,690 5 View

Is it possible to extract DNA or RNA from paraffinized biopsies ?

My lab have some skin biopsies that were previously conserved in paraffine , and i wanted to know if it is possible to extract DNA or RNA from them.

06 December 2020 7,964 6 View