Can a random-intercept cross lagged panel model (RI-CLPM) be indentified with just two measurement points?

I am currently planning out my masters' thesis design and will be working with a large data set with variables that have been meseasured at two time points. Intially I thought of just using a...

21 January 2021 9,384 4 View

Why fouled membrane has more negative zeta potential and lower IP?

I modified PES membranes with nanoparticles (nanosilver, graphene, halloysite). They were used in UF for WWTP effluent treatment. After filtration, all membranes exhibited more negative zeta...

26 December 2020 5,676 3 View

Likert scale over repeated measures?

I am working on research where I have 66 participants who perform an exercise every day, and then they need to respond to 14 questions with a Likert scale (1-10). They performed this exercise for...

20 November 2020 4,682 6 View

Will making a hydride acceptor more electrophilic speed up hydride transfer?

I have been searching the literature about this and I have not found an answer. If the atom that accepts a hydride is made more electrophilic, can this speed up the rate of hydride transfer?

29 July 2020 9,944 1 View

Can the energy displayed in Gaussian Calculation Summary be used to compare the stability between molecules?

I want to compare the stability of molecules that have the same number of atoms. I optimized these structures and calculated their vibrational frequencies. Gaussian09 gives a Gaussian Calculation...

18 July 2020 5,243 5 View

Could anyone suggest some articles and reliable sources about the (expensive) price of ruthenium and its complexes fabrication?

I'm writing and article about dye sensitized solar cells and I need a reliable source (articles, journals, books, reviews...) to base my statement (that ruthenium itself and ruthenium complexes...

07 February 2020 8,172 1 View

Can I use different rotation tecniques to compare extract factors in different years?

Dear researchers, I obtained a rotation matrix (varimax) in my factor analysis with correlation no higher than 0.20 for my 2010 data. However, for my 2014 data, with varimax rotation, I obtained...

20 January 2020 5,393 2 View

Do you know of any (ideally German) open source intelligence measures?

We are planning a study, in which we want to measure verbal, numerical, and spatial intelligence in university students. The study takes place in a German-speaking country and we had originally...

19 August 2019 175 4 View

Which temperature should I use in Molecular dynamics (GROMACS) for a protein found in endoplasmatic reticulum?

Hi everyone, I'm trying to perform a MD simulation for a protein found in ER. In mdp file should I set: ref-temp= 300 K or 310K? gen-temp should be the same than ref-temp or 300...

22 June 2019 2,083 6 View

No title

I'm developing a MethyLight assay to verify a specific CpG site in a promoter region of my interest gene in rats. Unfortunately, I don't have a lot of choices to design the probe and primers,...

20 June 2019 1,004 3 View

How the wettability of rock sample can be changed by ageing in pure hydrocarbon oils only?

I want to do wettability analysis of hydrocarbon oil (octane)/rock/surfactant solution system. but to do the analysis first I have to make rock surface oil-wet. Since hydrocarbon oil does not have...

27 February 2021 5,383 3 View

What are the patterns of human behavior that lead to COVID-19 infections?

Does data from contact tracing help in establishing patterns of behavior and social interactions that lead to infections? There are cases here in the Philippines where patients have no travel...

25 February 2021 9,002 13 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

How to build fouling and erosion simulation model for Aero Engine compressor and turbine rotor in Simulink / Matlab?

How to build fouling and erosion simulation model for Aero Engine compressor and turbine rotor in Simulink / Matlab?

22 February 2021 3,697 1 View

How can I measure the surface interaction or surface interfacial chemistry between polishing abrasives and upper surface of substrate ?

I am working on polishing abrasives. I need to do few characterizations ? which can provide the on time surface chemistry of substrate with polishing abrasive during optical polishing. I would...

18 February 2021 5,319 3 View

How to get rough estimation of the concentrations of Oxygen and moisture inside the glove box?

Dear colleagues, I was just wondering if you can suggest a good method to get a rough estimation to the concentration of O2 and H2O inside the glove box as unfortunately, our glove box doesn't...

17 February 2021 1,012 3 View

Is it reliable to evaluate surface roughness (gwyddion) with SEM pictures?

There are a few works(e.g. DOI 10.1002/sia.4889) reporting that surface roughness can be evaluated by software like gwyddion with SEM pictures.However,the surface roughness is strongly influenced...

09 February 2021 1,905 8 View

How to eradicate the deteriorated contact resistance in the electrical or electronic devices, like SCR or contactor' pin cable ?

Through years operation, some of the devices' pins connection gradually become worse and finally burn out due to the high temperature at the connection point. We can check out these risk points...

04 February 2021 7,401 5 View

Is it possible to find out the wettability and contact angle of water on the rough or corrugated substrate?

First of all, whether it is possible to identify the presence of water and its amount on the Silicon substrate by using only FT-IR spectroscopy. Can ATR-FTIR spectroscopy find out the wettability...

03 February 2021 9,085 4 View

How can you make a PEDOT:PSS film using the doctor blade technique?

I have been trying to make an even PEDOT: PSS (PH1000) film with the doctor blade technique (tape casting) with varying results. I have been using a silicon substrate that's treated with piranha...

01 February 2021 8,506 5 View