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

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

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

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 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

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View