How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

How can I find a Raman spectrum wavenumber corresponding to what compound?

I have several Raman spectra with very distinct peaks at certain wavenumbers, such as 277, 359, 466, 583, 623, 686, and 795cm-1. How can I identify them to what compound(s)? The RRUFF and others...

24 February 2021 363 3 View

Is there a suitable way to confine cell attachment area inside a multi-well plate?

Are there any types of cylindrical cell culture inserts that are designed to confine cell seeding area? Say, if I'm using a 12 well plate (3.5 cm^2/well), but only want to seed cells in the middle...

22 February 2021 7,127 4 View

What is the method of removing RNase contamination from a filter paper surface?

I am working on a biosensing project on paper substrate, however, it is found that the RNase contamination occurs on the filter paper. Might I ask is there any method to clean the paper surface...

12 February 2021 3,926 3 View

What is causing the raw fluorescence to be negative?

Hi everyone, I would really appreciate it if someone can tell me when and why a raw fluorescence starts below zero. In the picture attached below the blue colour curve starts from a negative...

09 February 2021 4,642 3 View

NVT or NPT is preferable for gas adsorption simulation ?

Hi there, In order to perform molecule dynamic simulation on gas adsorption on substrate materials, NVT or NPT ensemble is preferable ? Thanks!

08 February 2021 173 1 View

Regarding immunology, transmissivity, herd immunity and vaccines in Sars CoV-2?

This is a follow-up on an earlier question regarding mechanistics of vaccines: why current vaccines don't block transmission. In summary, they don't engage mucosal immune cells to produce IgA....

08 February 2021 8,321 3 View

How can I enter the load increment values to the Abaqus?

In Abaqus I know that there are two methods for incrementation (Automatic and fixed incrementation). I want to control the incrementation by myself. I want to input the values of load increment...

03 February 2021 6,943 3 View

Distortion problem in Abaqus explicit?

Dear all. I'm modeling the RC column with cyclic displacement by Abaqus-Explicit. The concrete model used Concrete Plastic Damage model. However I'm facing with a error about the excessive...

01 February 2021 7,726 1 View

I am finding a lot of cellular debris in the culture flask? What are the reason behind it?

I am facing a problem that cellular debris observed in my SHSY5Y cells. I have seeded the cells in DMEM media with 10% FBS in T-25/ 60mm dish (antibiotic used PEN-Strepand gentamycin). I have also...

17 January 2021 3,074 3 View

How do you write a simplified C block code of this average-current control on PSIM?

This is a Buck (step-down) Converter and I am new to this program. I need to program with simplified C block and I actually don't know what to do. Can anyone show me how to do this? Or at least...

02 March 2021 8,233 1 View

Do you know good and user-friendly programs to measure plant quantitative traits?

For my research i will need to measure plant quantitative traits (especially leaves area and roots length, but would be nice to add some more information). I recently discovered...

01 March 2021 5,035 2 View

Is it possible to set a breakpoint at a specific DYNAMIC instruction using the GNU Debugger (GDB)?

Using GDB, it is straightforward to debug and monitor a target program by setting a break-point at a specific instruction, since the instruction addresses are known. However, we have two...

24 February 2021 1,598 2 View

Implementation of chance-constrained optimization problem via scenario approach?

23 February 2021 7,826 2 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

Can I use FLEXBAR to detect and remove barcodes out of my short reads without demultiplexing ?

Hello, I have demultiplexed my short reads and I have removed the Illumina adapter left in the sequences and now I need to remove the barcodes used by the sequencing centre from my reads. I have...

22 February 2021 9,873 3 View

Any interests in participating to an experiment in space?

Hello, The UN Office of Outer Space Affairs has a program called access to space for all that enables institutions to have hands on expertise related to access to space. There are three elements...

22 February 2021 7,980 3 View

Simulation or Experiment? How do we choose?

If we want to assess if a phenomenon is going in a direction we expect, we can simulate it, using digital models, possibly agent models factoring in known properties and interaction features. We...

12 February 2021 1,141 21 View

Vth increase with programming SONOS Flash in Tcad?

Hello, I've been working on this issue for more than a month now.... I made a basic SONOS flash structure using TCAD Sentaurus sProcess. (tunnel oxide/nitride/blocking oxide : 4/6/6 [nm]) Then,...

11 February 2021 3,337 3 View

How to identify when a gaussian program is about terminate normally?

Dear all, I am trying to optimize a bimetallic complex using # opt=tight b3lyp/lanl2dz scf=qc geom=connectivity. The program is running for around 5 days but the size of the .chk remains same...

05 February 2021 8,721 3 View