Why nobody talks about the momentum mismatch of bulk phonon polariton as they do in surface phonon polariton?

More Chris Bohr's questions See All

Why do some of my Raman spectra show no signal at lower Raman shifts?

I'm using a InVia Renishaw Raman microscope system (785nm wavelength, 600l/mm grating density) to acquire Raman images on human brain samples, at 50um resolution. The samples are placed on MgF2...

30 July 2024 8,771 3 View

Could you try using PeptiCloud and see if it's a useful tool for biology research?

PeptiCloud (www.pepticloud.com) is a bioinformatic platform that allows researchers to organize and share their data for their projects as well as collaborate with others in one place. Through...

28 July 2024 4,762 2 View

Are these cassettes suitable for expressing PETase mutant in E. coli?

I created two potential gene expression cassettes (constitutive and inducible) for expression of a mutant PETase gene on PeptiCloud using the version tree feature, which allows users to create...

28 July 2024 7,559 1 View

COMSOL simulation of transient wave optics propagation is not physical?

Hi guys, I am trying to simulate a 1 ps long plane wave propagating in a dispersive material, with the wave optics transient module. According to the drude-lorentz model, when the frequency of...

29 June 2024 486 1 View

How to removal SDS/SLS from large quantities of water?

Hi all, I have a several gallons of water mixed with low percent SLS, how can i remove the SLS in a cost-effective manner.

24 June 2024 6,725 3 View

Is grammaticalization/subjectification a mechanism or motivation?

I know that we can categorize a specific linguistic change as either gramaticalization or subjectification (or both involved), but can we also say that specific linguistic change is motivated by...

31 May 2024 2,106 2 View

Clarification on 3 x 2 factorial designs and reporting?

Hi, I am currently looking at a study where they used a 3 x 2 factorial design where they had 3 diets (A, B, C) and 2 enzyme supplementation levels (0 vs 1 %). Thus giving 6 treatments. Authors...

26 May 2024 4,626 1 View

Factorial Design Experiment Data in a Meta-Analysis?

Hi, I am currently creating a meta-analysis on the effect of growth performance of pigs in response to dietary fiber content in experimental diets as well as the influence of a fiber enzyme...

25 May 2024 8,855 1 View

The hymen in sexually active women can be intact or not?

Examination of sexual assault case and giving evidence in legal situations

14 May 2024 5,228 3 View

What are the most critical construction site hazards in Ghana that a mobile app could effectively monitor and report on to improve safety outcomes?

This question seeks to identify the most critical hazards on construction sites in Ghana that a mobile app can effectively monitor and report on to improve safety outcomes. The goal is to...

09 May 2024 5,316 1 View

How to increase simulation box size?

We intend to study the interaction between peptides and polymer (like PP, PE and PS) through MD simulations using Martini force fields ( Martini 2 for PP and Martini 3 for PE, PS). We have...

08 August 2024 4,842 0 View

1. If I can quantize the atom using this hyperbolic spiral and classical physics, could nature do the same?

If we map as a continuous motion an ionising electron (beginning its journey at n=1) in an H atom, a specific hyperbolic spiral appears (see animation). When we solve this spiral formula, we find...

07 August 2024 5,343 2 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 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

What is the solubility of Iron (+3) in Bismuth Oxide?

Dear all: I am modifying Bismuth Tungstate with Hematite (Fe2O3), so I would like to know about how much Iron(+3) can form a solid solution in a Bismuth Oxide matrix. Best wishes Marco

29 July 2024 2,163 1 View

Optimal siRNA Volume for Complexation with Liposomes in a 2.5 mL Solution with 10 mg/mL Lipid Concentration?

How much volume of siRNA can I add to 2.5 mL of liposomes with a total lipid concentration of 10 mg/mL?

27 July 2024 6,920 1 View

Has the Affordable Connectivity Program Helped You/Your Community? And Would Bulk Tablets on a Similar Program Help Your Business?

Do You Believe VP Harris Would Show Empathy to Tech Companies in Her Administration as POTUS? I ask in light of the fact that, the ACP was not re-funded this round. So many and businesses need...

24 July 2024 4,732 3 View

Is the zero-zero component of the metric tensor equal to 1 for accelerating reference frames?

Consider the case of negligible gravity but there is an accelerating reference frame. Its origin traces out a trajectory, or world line, seen in some inertial reference frame. The Lorentz metric...

24 July 2024 1,608 15 View

I am trying to find phonon, and when i run calculations, there is error ?

how to fix this error, from phq_readin : error # 1 DFPT with the Blochl correction is not implemented I am attaching my ph.in file.

23 July 2024 4,649 2 View

Turning the Brain into a Vegetable: What does it tell Us?

A vegetative state is caused by having massive damage to the mesencephalon, which can include both the pontine nuclei and the thalamus (Plum and Posner 1980). During this state, the metabolic...

23 July 2024 6,177 0 View