Does anyone know of a predictable relationship beween surface gravity and atmospheric composition?

The attached file demonstrates that there is a predictable relationship between the structural density of a terrestrial body and its none-rotating surface gravity. Using Newton's gravity law of...

26 February 2021 2,317 3 View

What is the chemical composition of chlorellin?

The chlorellin is the chemical compound which is first extracted from Chlorella vulgaris by Pratt in 1944. Spoehr in 1949 wrote that it is a mixture between fatty-acids and hyrdocarbons and its...

25 January 2021 8,538 1 View

Is it possible to dynamically adjust the data rate of a wireless node using TSCH protocol in Link Layer?

I'm currently learning about rate-based congestion control for industrial wireless sensor network. Suppose there is a network consisting of several sensor nodes and one coordinator node connected...

12 November 2020 373 2 View

Transformation of Bacillus subtilis?

Colonies appeared after transformation of pHT01 plasmid into Bacillus subtilis, and band was confirmed by performing colony PCR. However, if the colony is picked and grown (in LB+antibiotics) and...

27 October 2020 609 4 View

How long can PBMCs survive outside of an incubator in R-10 culturing medium?

I have been running ELISPOTS with not much success recently due to high levels of background. After testing everything from the DMSO used in peptide stimulation to the FBS in the culturing medium,...

15 October 2020 849 3 View

Is this correct molecular docking?

Hello, buds I need your help to interpret the attached data. R group in serine is CH2OH, but the data show the two O in the group with hydrogen bonds with a molecule. Is this correct?...

02 October 2020 7,787 6 View

Are there any corporations that have launched Enterprise MOOCs to the public?

I am studying Enterprise MOOCs and can't seem to locate very many empirical articles for this area. The model I am interested in is similar to openSAP (https://open.sap.com). Please share any...

28 September 2020 6,813 2 View

Dataset size and the need for cross-validation (medical domain)?

I am currently envisioning a deep-learning model that classifies pulse waveforms (normal vs. pathologic). At this time, the no. of pulse dataset is about 2,000,000, and the balance of normal and...

31 July 2020 6,713 3 View

How dissolve Hyaluronic acid with consistent viscosity?

I'm trying to dissolve HA in PBS or cell media, 20 mg/ml, but gets inconsistent viscosity on my solutions. Some samples are very viscous while others are very liquid. The HA functionalized with a...

30 June 2020 4,075 3 View

[ELI5] FRET assay, Protease assay, Michelis Menten. How would you convert the fluorescence signal to the velocity (concentrion/time)?

Hello i am fairly new to the field of physical chemistry and only have a vague memory of it from undergrad classes. my FRET assay is set up like a regular FRET assay, so the enzymetic activity of...

18 June 2020 9,730 4 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

I am looking for a simple software program to model 3D chemical bonds. The purpose is to generate high-quality graphical abstracts. Any suggestion?

Hello everyone: I am looking for a simple software program to model chemical bonds. The purpose is to generate a high-quality graphical abstract for a top leading journal in the field of...

23 February 2021 8,012 3 View

How can I simulate the optical absorption spectrum of a biomaterial (like DNA or protein) in COMSOL?

I need to simulate the optical properties of a biomaterial, namely DNA, in COMSOL. Basically I need to simulate the IR absorption spectrum of a cylinder filled with a 'concentration' of DNA. I am...

21 February 2021 3,043 3 View

How to interpret this FTIR spectrum of pyrolyzed hydrochar?

20 February 2021 2,840 3 View

Why CHi^2 is reducing if I divide the intensity by a constant factor?

I was refining my XRD data in FullProf. Highest intensity was 400000. The fitting was good but still the Chi^2 value is very high (0.174E+04) I divided the intensity by some constant factor (say...

17 February 2021 3,383 5 View

What is error #2070 in gaussian.how we do resolve it?

We want to ONIOM calculation in gaussian16. However, gaussian doesn't work. What should we do? Atom 15 layer R linked to atom 85 is also bonded to atom 161 in layer M bad...

15 February 2021 7,766 3 View

Could we interpret the intensity of the peaks of the FTIR spectrum correlating to the concentration of some compound?

If we analyze the extract of two plants from the same species (for example) and there are very similarities between the two IR spectra except for the intensity of one peak at the same wavenumber....

05 February 2021 2,630 5 View

How do I refine a specific region of my protein model so that it perfectly superposes with a template peptide PDB with the same sequence?

I have a protein model and want to replace a 12-amino acids-long region within the center of the model with those of a PDB file containing a 12-amino acids long peptide of the same sequence. This...

02 February 2021 779 2 View