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    • T

      Tutorials on modeling and simulation diamond NEMS
      SAMSON • • Tom 1

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      DmitriyMarin

      Great video, Tom! Thanks for posting it!

    • L

      Troubleshooting a GROMACS termination following “Generating 1-4 interactions: fudge = 1”
      SAMSON • • LW

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      DmitriyMarin

      Hi,

      Did you perform other steps (preparation, minimization, equilibration) in GROMACS Wizard before running the production MD (see GROMACS Wizard tutorials)? If not, you might want to try to run them starting from the preparation step.

      Could you share the input (all the input files for the step) and resulting files (the corresponding folder into which GROMACS Wizard saved the resulting files, named with a time stamp, e.g. "2024-10-23_09h55m26s-simulate-error") with us so we can try to reproduce the issue and see is the problem?

    • L

      SAMSON cannot reach samson-connect under VPN
      SAMSON • • Luis

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      A

      thank you

    • L

      Load and visualize a xyz trajectory frame by frame
      SAMSON • • Luis

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      DmitriyMarin

      Dear @Luis ,

      Great! Thanks for checking and for reporting the issue in the first place!

    • J

      Using IM-UFF
      SAMSON • • Joseph 1

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      DmitriyMarin

      Currently, there is no public extension in SAMSON that can launch/use LAMMPS. But you can export your system into a LAMMPS Data format and load LAMMPS files (data and trajectories) back in SAMSON.

      We plan on adding the support for periodic boundary conditions in one of the future releases of SAMSON. For some systems, you can simulate without PBC or by freezing the boundary atoms to fix them.

      You can also combine simulations in SAMSON with e.g. ASE package using Python, see Python scripting: Combining SAMSON simulation with ASE calculators

    • M

      How to show Atomtype Labels from GROMACS .gro File in SAMSON
      SAMSON • • Mattia Felice

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      DmitriyMarin

      Dear @Mattia-Felice ,

      Thank you for the feedback! We will consider this for the next releases of SAMSON.

      We will surely add more labeling possibilities in the next release.

      As for formats from ab initio packages, SAMSON currently supports only Molden and it loads only the molecular structure from it. But we can add the possibility to load other data from it as well.

    • A

      how to define ribbons color?
      SAMSON • • albert

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      DmitriyMarin

      Hi @albert ,

      There are several options for the colorization of structures or visual models (Ribbons is a visual model) based on chains:

      The colorization using color schemes. First, select the Ribbons visual model in the Document view that you would like to colorize. Then: Biology > Colorize > Chain ID or Chain (illustrative) (i.e. in the style of D.S.Goodsell)
      aedf2d1e-77e3-42cd-af72-51400ba6f73b-image.png
      You can also choose "Custom..." from the list and specify the color palette. The colorization with constant colors per chain. Choose a chain in the Document view. Set the color using Visualization > Colorize.

      See more in User guide - Colorizing and User guide - Visualizing.

    • Z

      Is there a way to export vector image?
      SAMSON • • Zilong

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      Admin

      Dear @Zilong

      It’s not currently possible to export vector images. However, you can change the image resolution in the preferences:

      Open the Preferences (Menu Interface > Preferences) In the Preferences, go to Interface > Captures to change capture settings, including the resolution.
    • C

      Autodock VINA extension fails to import SDF library
      SAMSON • • Chris 2

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      Admin

      Hi Chris, thanks again for reaching out! As discussed, this was caused by having ligands with multiple connected components, which Vina cannot dock. We will try to provide clearer error messages to prevent this. Thanks again!

    • C

      Visualizing hydrogen atoms
      SAMSON • • Chris 1

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      C

      Wonderful, thanks for the tip. It took a little adjustment for me to get familiar with Inspector to just show the new model without the C-H's, but this works well.

    • C

      Tips for depicting binding pockets?
      SAMSON • • Chris 1

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      C

      Great, thanks! I will also mess with transparency, etc. in order to see some interactions in more detail.

    • M

      Solvent Accessible Surface Visualization - surface properties?
      SAMSON • • Matthew 1

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      M

      Thank you for your quick response, it is much appreciated!

    • O

      4k display support?
      SAMSON • • Oleksandr 0

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      1125
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      Stephane

      Hello, high-resolution displays are not supported natively yet, but Windows 10 indeed allows you to change the settings. On my 4K monitor, I use the method explained there : https://blog.pauby.com/post/high-dpi-settings-windows-10/ , but I choose "System" instead of "Application". My system DPI adjustment is at 200% in Windows, and here is how it looks like:
      0_1612374085845_ce0855be-0ca8-49e4-a8fd-bbf45f42f1b6-image.png

      Could you please let me know if this works for you?

    • N

      Background/Visualization issues on 2015 Macintosh
      SAMSON • • Nick

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      1218
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      Admin

      Hi Nick, thanks for the posts, we've sent you messages about how to reach us for chat so we can help you.

    • J

      GROMACS Wizard doesn't show
      SAMSON • • James 0

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      Admin

      Hi James, thanks for reporting this. We sent you an email to determine the issue.

    • M

      Problems with the visualization of molecules
      SAMSON • • Mizraim

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      M

      Okay, Thanks.

    • E

      Problem with deletions
      SAMSON • • Emmanuel

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      1544
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      DmitriyMarin

      Thank you @Emmanuel for reporting these issues. We have fixed them - the Elements will be updated automatically once you launch SAMSON.

    • E

      Problem with surface creation...
      SAMSON • • Emmanuel

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      1487
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      DmitriyMarin

      Dear @Emmanuel ,

      Thanks for reporting this issue! It's now fixed, and the fix will be available with SAMSON 2020 R2, which will be deployed in a few days.

    • E

      Problem with water selection
      SAMSON • • Emmanuel

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      1415
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      DmitriyMarin

      Dear @Emmanuel ,

      Thanks for reporting this issue! It's now fixed, and the fix will be available with SAMSON 2020 R2, which will be deployed in a few days.

    • E

      Crash with SAMSON
      SAMSON • • Emmanuel

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      1509
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      Admin

      Thanks for reporting this bug! It's now fixed, and the fix will be available with SAMSON 2020 R2, which will be deployed this monday (may 11, 2020).