Multiple-Group Invariance with Categorical Outcomes AND correlated residuals?

Dear all, I have a question relating to the following paper: Dubravka Svetina, Leslie Rutkowski & David Rutkowski (2020) Multiple-Group Invariance with Categorical Outcomes Using Updated...

08 October 2020 3,142 3 View

How much plant powder do I need for different concentration of two extracts (Aqueous and Ethanolic extract)?

Supposed I need three different concentration for two plant extracts (namely: Aqueous and Ethanolic extract), starting at 50mg/ml, then 100mg/ml then 150mg/ml. In what particular weight of plant...

31 March 2019 2,775 5 View

When you use La3+ as a releasing agent for measuring Ca near Phosphate in AAS, should the Phosphate precipitate when adding the La?

Is the Lanthanium added to samples containing Ca and Phosphate to precipitate all the Phosphate or should the La3+ just prevent the Ca to bind to the Phosphate in the flame?

03 June 2018 5,181 12 View

Western blot:Can I swap antibodies during primary incubation or do I have to strip membranes first?

Hi guys, I made a mistake with a western blot. i am probing for two separate molecular weight proteins and therefore cut the membrane. I placed the antibodies on the membranes, only to realise 30...

21 August 2016 2,419 3 View

Does anyone have any experience running ERIC-PCR?

11 May 2016 526 39 View

How do I get the electrode surface area for CR2032?

I am trying to compute the Lithium-ion diffusion coefficient (DLi) based on the equation attached[1]. So how do I get the A; electrode surface? and also how to calculate the dE/dx part of the...

13 March 2016 4,458 3 View

Any papers that have specific gases and its composition in carbonization of coconut shell?

carbonization, coconut shell, gases, carbonizer

24 February 2016 2,412 3 View

Dissertation query, Q - method inquiry. currently running a pilot study and am falling short on the analysis. All info welcome?

Hi, I'm an Undergraduate student at the University of Chichester and I'm currently writing my dissertation. I have all my statements and my question, i have knowledge of exel and spss software...

04 January 2016 3,364 4 View

What factors affect the electrode polarization for lithium-ion batteries?

Surface area, particle size? What other possible factors reduces/increases Electrode Polarization? And how does Electrode Polarization affect affect rate-capability and battery performance?

08 December 2015 2,303 6 View

Does anyone have information (citation) or experience about cyclic olefin copolymers (COC)?

I'm interested in preparation, chemistry (stability, solubility, water content), and characteristics (optical (fluorescent), thermal, electrical....), particularly biocompatibility. Processing...

15 June 2013 6,288 1 View

How to simultaneously perform multiple biochemical assays?

I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...

01 March 2021 6,999 3 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

I want to simulate a system containing protein and heavy metals; which force field is most reliable for this purpose?

The protein I want to simulate has multiple heavy metals. I wanted to know which force-field I should use with GROMACS to achieve this. Most importantly, do the latest updates in the force-field...

16 February 2021 2,420 1 View

What can be use to mop up heavy metals from vegetables or soils in quarry mining site?

It has been established that quarry mining site polluted and contaminated it's environment with heavy metals, these affects the crops and vegetables planted in the area. The possible solutions to...

12 February 2021 1,155 5 View

Please how can i write a proposal on the methodolgies of AAS to determine heavy metalsin water?

Please I want to write a proposal on the methodologies of AAS to determine heavy metals in water. please any link can help.

08 February 2021 3,587 7 View

How to calculate the Boiling point for metals at high vapor pressure?

In our experiment, some metal surfaces are exposed to radiation heat under high vapor gas pressure. I would like to ask if there is any way to calculate the boiling point for metals under high...

31 January 2021 249 4 View

Does euthanasia by CO2 inhalation cause NF-kB activation in mouse heart or body in general?

I was wondering if euthanizing mice by carbon dioxide inhalation would cause activation of NF-kB inflammatory response?

26 January 2021 4,096 2 View

How can I prepare 300mg/L concentration of lead(II) nitrate ( Mol. Wt reffered is 331.21) incoorporated Luria-Bertani (LB) agar ?

I need to check the Heavy metal (lead) consumption assay using microbes at varying concentration in same media. ( 200mg/L to 2000mg/L).kindly help me to clear it.

19 January 2021 1,946 9 View

What is the kinetics that Cr6 on the surface of the soil will preferably exchange with the charge on the surface of the iron oxide nanoparticle?

I am researching the application of iron oxide nanoparticle in the removal of heavy metal (Cr6) from soil

10 January 2021 3,167 3 View