Does phthalic acid ester (PAE) have any toxic effect on plant tissues?

Apart from the endocrine distruption of PAE in humans, does it have any toxic effect on plant tissues? I would also appreciate if some can provide a brief protocol to determine PAE content in...

11 December 2017 6,205 0 View

Why is some scholarly articles published (though not open access) not shared with colleagues, even on a private level?

I have noticed that some requests for scholarly articles from colleagues on RG and some by private emails (though published mostly not on open access status), are always turned down stating that...

09 October 2017 3,082 4 View

What differentiate the XRD pattern of pure metallic Cu nanoparticles from Cu nanoparticles with impurities?

I have two XRD patterns of Cu nanoparticles of different sizes (

07 August 2017 8,940 18 View

What is the conversion factor of enzyme activity of ascorbate peroxidase and Glutathione reductase from U/L (SI Unit) to Umol/L

Please colleagues, I need to know how to convert the measure of enzyme activities in plants (Ascorbate peroxidase and Glutathione reductase) from the SI unit of U/L to umol/L. I found that most...

05 June 2017 871 2 View

What is the appropriate matrix (covariance or correlation) in principal component analysis?

05 June 2017 4,606 9 View

What is the environmental relevance of carbon black in the soil?

Firstly, I want to know the role of carbon black in soil restoration, perhaps it is effective in soil conditioning (fertility increase etc). Also, i would like to know if there is any empirical...

31 December 2016 9,208 13 View

What particle size is appropriate for the determination of total and bioavailable soil metal?

I want to know the precise range of particle sizes that are considered appropriate when determining total and bio-available metal concentrations in agricultural soils. I understand most scholarly...

31 December 2015 8,983 16 View

What method can be employed to determine the toxicity potential of extractable trace metal (e.g. Cu, Pb) in soil?

I want to determine the activity of extractable Cu (pCu2+) and Pb (pPb2+) in the soil to evaluate their toxicity potential after some period of aging. Can someone provide a detail protocol to go...

10 November 2015 6,020 5 View

What is the difference between canonical and detrended correspondence?

I want to know the main differences between canonical correspondence and Detrended correspondence in term of their applications to data in statistics.

05 June 2015 2,319 0 View

What is the true measure of academic productivity in an academia?

Recently in developing countries, there have been series of debate on the measure of productivity of researchers/academics. Many advocate the use of metric method like impact factor of...

05 June 2015 1,092 1 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

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

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

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View