How can I describe adiabatic rapid passage by Bloch equations ?

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How to obtain spin density distribution of triplet states ?

Regarding the first excited triplet states of organic molecules, it is basically expected that their spin density distributions can be evaluated from the coefficients of HOMO and LUMO, for...

03 July 2019 2,432 2 View

Why do I see a "hook effect" at high antibody concentrations when using TMB substrate and not when using ABTS substrate?

I see a hook effect when measuring antibody binding to protein by ELISA using TMB substrate but not when using ABST substrate. I am measuring antibody that has been deglycosolated with PNGase....

09 March 2016 6,989 2 View

Using R or EZR, how can I assign wealth index scores to each respondent and determine the range of wealth index scores for each quintile?

I collected population based data and want to analyze them according to quintile of the population distribution of household wealth (e.g. coverage of antenatal care by quintile). In my...

22 July 2015 3,895 1 View

How can I perform a statistical test for the difference between two odds ratios for the purpose of impact evaluation of a public health project?

For example, the odds ratio in an intervention area (baseline:73/463 vs follow-up: 46/478) was 0.61 (95%CI: 0.41-0.90) and that in a control area (baseline:35/303 vs follow-up: 56/333) was...

13 October 2014 6,714 19 View

Do you have any thoughts on tumor cell lines that are implantable to B6 mice?

We are looking for tumor cell lines, which grow when implanted into C57Bl/6 mice. We know LLC and B16 are implantable. Do you know other cell lines?

31 August 2014 2,775 5 View

How does grain and grain boundary affect the ceramic when studying its dielectric properties?

I am not able to get good literature and the physics behind how first these grains and grain boundaries arises out of no where when we make a pellet to study its dielectric properties and then how...

07 August 2024 5,177 3 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How can I add own Henry coefficients in Aspen Plus?

Hi, i would like to simulate an absorption process in Aspen Plus. I want to use the NRTL model und would like to add some individual Henry coefficients. Is that possible and how?

05 August 2024 2,333 2 View

Why is the molecule's orientation with an electric field affect polarizability?

Why is the molecule's orientation with an electric field affect polarizability? Electrons are diffuse enough to be independent with respect to orientation and effect of electric field on...

03 August 2024 7,843 1 View

Why do paired electrons atoms produce no magnetic field lines?

If you think of electrons with spin as bar magnets, you know bar magnets of opposite polarity as long as they're not occupying the same spatial location don't cancel out each other's magnetic...

03 August 2024 3,927 2 View

Why is TLC not a form of partition chromatography?

Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?

03 August 2024 7,035 3 View

How to correctly use the UTE and ZTE pulse sequences in Bruker's ParaVision software?

I am using a Bruker 600M solid-state NMR spectrometer with a Micro 2.5 microimaging system. The test sample is a tube of 1M LiCl aqueous solution, and the nucleus detected is 1H. I am trying to...

01 August 2024 9,227 1 View

Mossbauer spectroscopy Co0.6Mn0.4Fe2O4 MNPs?

Following curve related to Co0.6Mn0.4Fe2O4 Magnetic nanoparticles with extra phase a-Fe2O3. I will appreciate to help me to interpretation this spectroscopy, especially the blue line.

31 July 2024 9,140 2 View

¿Are oxygen vacancies in semiconductors capable to change the band gap?

Dear all! Oxygen vacancies do raise negatively the Fermi level by increasing the negative charge in the semiconductor crystal structure. In the case of n-type semiconductors, I wonder if this...

30 July 2024 8,339 2 View

How to make the concentration measurements for the hydrogen absorption/desorption in the metal hydride?

Hello Everyone! I am trying to create a metal hydride system where I am trying to create a temperature control with the emphasis on measuring the concentration of the hydrogen with the hydrogen...

29 July 2024 7,577 2 View