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BETSE, the BioElectric Tissue Simulation Engine.

Project description

.. # ------------------( BADGES )------------------
.. image:: https://gitlab.com/betse/betse/badges/master/build.svg
:target: https://gitlab.com/betse/betse/pipelines
:alt: Linux Build Status
.. image:: https://ci.appveyor.com/api/projects/status/mow7y8k3vpfu30c6/branch/master?svg=true
:target: https://ci.appveyor.com/project/betse/betse/branch/master
:alt: Windows Build Status

.. # ------------------( SYNOPSIS )------------------

=====
BETSE
=====

**BETSE** (**B**\ io\ **E**\ lectric **T**\ issue **S**\ imulation **E**\ ngine)
is an open-source cross-platform `finite volume`_ simulator for 2D computational
multiphysics problems in the life sciences – including electrodiffusion_,
electro-osmosis_, galvanotaxis_, `voltage-gated ion channels`_, `gene regulatory
networks`_, and `biochemical reaction networks`_ (e.g., metabolism). BETSE is
associated with the `Paul Allen Discovery Center`_ at `Tufts University`_ and
supported by a `Paul Allen Discovery Center award`_ from the `Paul G. Allen
Frontiers Group`_.

BETSE is `portably implemented <codebase_>`__ in pure `Python 3`_, `continuously
stress-tested <testing_>`__ with GitLab-CI_ **×** Appveyor_ **+** py.test_, and
`permissively distributed <License_>`__ under the `BSD 2-clause license`_.

======
BETSEE
======

BETSEE_ (\ **BETSE E**\ nvironment) is the official open-source cross-platform
graphical user interface (GUI) for BETSE. BETSEE_ wraps the low-level
command-line interface (CLI) bundled with BETSE in a high-level interactive
modelling environment optimized for both new and advanced users alike.

Like BETSE, BETSEE_ is `portably implemented <BETSEE codebase_>`__ in `Python
3`_ and `permissively distributed <License_>`__ under the `BSD 2-clause
license`_. Unlike BETSE, BETSEE_ leverages the industry-standard PySide2_-based
`Qt 5 <Qt_>`_ application framework to deliver a modern scientific workflow.

.. # ------------------( TABLE OF CONTENTS )------------------
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.. # table of contents heading from the prior paragraph by less than a single
.. # blank line, hampering this table's readability and aesthetic comeliness.

|

.. # Table of contents, excluding the above document heading. While the
.. # official reStructuredText documentation suggests that a language-specific
.. # heading will automatically prepend this table, this does *NOT* appear to
.. # be the case. Instead, this heading must be explicitly declared.

.. contents:: **Contents**
:local:

.. # ------------------( DESCRIPTION )------------------

Installation
============

BETSE currently supports **Linux**, **macOS**, and **Windows** out-of-the-box.

Simple
--------

For new users, BETSE is readily installable as follows:

.. # FIXME: Commented out until we actually have a working Windows installation script.

.. # - Under **Windows 10**:
.. #
.. # #. Install **Ubuntu Linux** via the `Windows Subsystem for Linux (WSL) <WSL_>`__.
.. # #. Open an **Ubuntu Linux terminal.** [#terminal]_
.. # #. Run the following commands in this terminal.
.. #
.. # wget https://gitlab.com/betse/betse/raw/master/bin/install/windows/betsee_windows_10.bash && source betsee_windows_10.bash

.. # FIXME: Create a BETSE-specific installer reduced from this BETSEE installer.

- Under `Ubuntu Linux 16.04 (Xenial Xerus)`_ and newer:

#. Open a **terminal.** [#terminal]_
#. Run the following commands.

.. code:: bash

wget https://gitlab.com/betse/betsee/raw/master/bin/install/linux/betsee_ubuntu_16_04.bash && source betsee_ubuntu_16_04.bash

- Under all other platforms: :sup:`(e.g., macOS, Windows)`

#. Install the **Python 3.x** [#python2_not]_ (e.g., 3.6) variant of
Anaconda_. [#anaconda_not]_
#. Open a **terminal.** [#terminal]_
#. Run the following commands.

#. Install **mandatory dependencies.** [#why_dependencies]_

.. code:: bash

conda install dill
conda install -c conda-forge imageio

#. Install **BETSE.** [#pip3_not]_

.. code:: bash

python3 -m pip install betse

#. (\ *Optional*\ ) Install **recommended dependencies.** While *not*
required for basic usage, the following third-party packages are required
for advanced functionality (e.g., gene regulatory networks, animation
video encoding).

.. code:: bash

conda install -c anaconda graphviz && \
conda install -c conda-forge ffmpeg networkx && \
conda install -c rmg pydot

- (\ *Optional*\ ) Test **BETSE.** Run all modelling phases of a sample
simulation from the current directory.

.. code:: bash

betse try


.. [#terminal]
To open a `POSIX`_\ -compatible terminal under:

- **Windows:**

#. Install **Ubuntu Linux** via the `Windows Subsystem for Linux (WSL) <WSL_>`__.
#. Open an *Ubuntu Linux terminal.*

- **macOS:**

#. Open the *Finder*.
#. Open the *Applications* folder.
#. Open the *Utilities* folder.
#. Open *Terminal.app*.

- **Ubuntu Linux:**

#. Type ``Ctrl``\ +\ ``Alt``\ +\ ``t``.

.. [#python2_not]
Do *not* install the **Python 2.7** variant of Anaconda_. BETSE requires
**Python 3.x.**

.. [#anaconda_not]
If you prefer *not* to install Anaconda_, BETSE dependencies are `also
installable <Advanced_>`__ with your platform-specific package manager (e.g.,
Homebrew_ on macOS, APT_ on Ubuntu Linux). Doing so is non-trivial and, if
performed incorrectly, could produce a performance-crippled single-core
installation of BETSE – which would be bad. Anaconda_ suffers no such issues
and is guaranteed to produce a performance-optimized multicore installation
of BETSE on *all* supported platforms – which is good.

.. [#why_dependencies]
Most mandatory dependencies of BETSE (e.g., NumPy_, SciPy_) are already
bundled by default with Anaconda_. Some (e.g., dill_, imageio_) are not.
The latter require manual installation.

.. [#pip3_not]
Always run the ``python3 -m pip`` command to install Python packages into the
active Anaconda_ environment. *Never* run the ``pip`` or ``pip3`` commands,
which incorrectly refer to their non-\ Anaconda_ versions on some platforms
(e.g., macOS), which prevents BETSE from finding packages installed with
these commands – which is bad. The ``python3 -m pip`` command suffers no such
issues and is guaranteed to install packages in a BETSE-aware manner on *all*
supported platforms – which is good.

Advanced
--------

For developers and advanced users, *any* version of BETSE – including the live
repository and prior stable releases – is manually installable as follows:

#. Install **Python 3.x** and `all dependencies <dependencies_>`__ required by
BETSE. Under:

- **Linux,** install `these dependencies <dependencies_>`__ via your
distribution-specific package manager (e.g., APT_ under Debian-based
distributions). Do *not* use ``pip``.\ [#pip_not]_
- **macOS,** either:

- (\ *Recommended*\ ) Install the **Python 3.x** variant of Anaconda_.
- Or both:

#. Install a third-party package manager (e.g., Homebrew_, MacPorts_).
Apple does *not* provide a package manager out-of-the-box.
#. Install `these dependencies <dependencies_>`__ via that package
manager. Do *not* use ``pip``.\ [#pip_not]_

- **Windows,** install the **Python 3.x** variant of Anaconda_.\ [#windows]_

#. Open a **terminal.**
#. **Download** either:

- **The unstable BETSE repository** as follows:

#. Install Git_.
#. Clone the ``master`` branch of this repository.

.. code:: bash

git clone https://gitlab.com/betse/betse.git

#. Prepare for installation.

.. code:: bash

cd betse

- **Any stable BETSE release,** including the most recent, as follows:

#. Visit our `source tarball archive <tarballs_>`__.
#. Click the download icon to the right of the desired release and select
*Download tar.gz*.
#. Extract the downloaded tarball into the current directory.

.. code:: bash

tar -xvzf betse-*.tar.gz

#. (\ *Optional*\ ) Remove this tarball.

.. code:: bash

rm betse-*.tar.gz

#. Prepare for installation.

.. code:: bash

cd betse-*

#. **Install BETSE** either:

- (\ *Recommended*\ ) **Editably,** installing a cross-platform symbolic link
to the current BETSE codebase. Modifications to this code are applied
immediately *without* requiring reinstallation.

.. code:: bash

sudo python3 setup.py develop

- **Non-editably,** installing a physical copy of the current BETSE codebase.
Modifications to this code are ignored and thus require reinstallation.

.. code:: bash

sudo python3 setup.py install

#. (\ *Optional*\ ) **Test BETSE,** running all modelling phases of a sample
simulation from a new directory.

.. code:: bash

cd /tmp && betse try


.. [#pip_not]
Do *not* install scientific dependencies (e.g., NumPy_, SciPy_) with either
``pip`` or ``easy_install``; doing so typically degrades BETSE to single-core
performance. To optimize BETSE across multiple cores, *always* install these
dependencies with your platform-specific package manager (e.g., Homebrew_,
APT_).

.. [#windows]
Unlike Linux and macOS, Anaconda_ is (\ *effectively*\ ) required under
Windows. Due to Microsoft's lack of support for `POSIX`_\ -compliant
toolchains, *no* reasonable alternatives for installing multicore-aware
scientific dependencies exist.

Usage
============

BETSE itself provides the ``betse`` command, a low-level command line interface
(CLI) optimized for non-interactive scripting (e.g., for implementing massively
parallel `genetic algorithms`_). See the following external documents for
detailed usage instructions – complete with explanatory examples, sample plots,
and ample screenshots:

- Official `BETSE 0.4 documentation`_. (\ *PDF format; 72 pages.*\ )
- Official `BETSE 0.3 documentation`_. (\ *PDF format; 77 pages.*\ )

Alternately, our sister project BETSEE_ provides the ``betsee`` command, a
high-level graphical user interface (GUI) optimized for interactive
experimentation.

Introduction
============

BETSE simulates biorealistic electrochemical phenomena in `gap junction`_\
-networked 2D cellular collectives. To predict `bioelectric patterns
<bioelectricity_>`__ and their spatio-temporal dynamics, BETSE:

- Models `ion channel`_ and `gap junction`_ activity.
- Tracks changes in ion concentration and net ionic charge.
- Calculates endogenous voltages and currents.
- Accepts simulation parameters, variables, and options as human-readable,
well-commented configuration files in YAML_ format.
- Exports simulation results to a variety of output formats, including:

- Publication-quality:

- Plots, charts, and animations driven by Matplotlib_, the industry
standard for open-source plot visualization.
- `Directed graphs`_ (i.e., networks) driven by Graphviz_, the industry
standard for open-source graph visualization.

- Internet-friendly compressed video driven by any of various popular
open-source video encoders, including FFmpeg_, Libav_, and MEncoder_.
- Post-processable tabular data (e.g., `comma-separated values (CSV)
<comma-separated values_>`__).

- Imports bitmask images defining the shapes of:

- Cell clusters.
- Cell cluster regions localizing `ion channel`_ activity, typically
signifying disparate types of adjacent tissue.

To assemble simple concepts into complex simulations, BETSE supplies a richly
configurable, highly scalable biological toolset consisting of:

Ions
----

Simulations may enable arbitrary combinations of the principal ions implicated
in bioelectrical signaling – including:

- Sodium_ (*Na*\ :sup:`+`).
- Potassium_ (*K*\ :sup:`+`).
- Chloride_ (*Cl*\ :sup:`-`).
- Calcium_ (*Ca*\ :sup:`2+`).
- Hydrogen_ (*H*\ :sup:`+`).
- `Anionic proteins`_ (*P*\ :sup:`-`).
- Bicarbonate_ (*HCO*\ :sup:`-`\ :sub:`3`).

Ion Channels
------------

Individual cells in simulations may enable arbitrary combinations of
`voltage-gated ion channels`_, each implementing the `Hodgkin-Huxley (HH)
formalism`_ with experimentally-derived parameters sourced from reputable
`knowledge-based systems`_ (e.g., Channelpedia_). Explicitly supported channel
types include:

- HCN1_, HCN2_, and HCN4_.
- `L-type Ca`_, `T-type Ca`_, and |P/Q-type Ca|_.
- Kir2.1_.
- Kv1.1_, Kv1.2_, Kv1.5_. Kv3.3_, and Kv3.4_.
- Nav1.2_, Nav1.3_, and Nav1.6_.
- `Leak <leak channels_>`__ and `ligand-gated channels`_, including:

- |Calcium-gated K+ channels|_.

Custom ion channels parametrized by user-selected constants may be trivially
defined in the same manner (e.g., via a YAML_\ -formatted configuration file).

Ion Pumps and Exchangers
------------------------

For fine-grained control over cell dynamics, notable ion pumps and exchangers
may also be selectively enabled – including:

- |Ca2+-ATPase|_.
- |H+/K+-ATPase|_.
- |Na+/K+-ATPase|_.
- V-ATPase_.

Custom ion pumps and exchangers parametrized by user-selected constants may be
trivially defined in the same manner (e.g., via a YAML_\ -formatted
configuration file).

Extracellular Space
-------------------

Cells form interconnected intracellular networks via voltage-sensitive `gap
junction connections <gap junction_>`__ embedded within an `extracellular
environment`_, maintained by `tight junctions`_ at the cell cluster periphery.
Simulation of this environment enables exploration of `local field
potentials`_, `transepithelial potential`_, and `ephaptic coupling`_ between
cells.

Biological Networks
-------------------

Simulation of `gene regulatory <gene regulatory networks_>`__ and `biochemical
reaction networks`_ at both the cellular and mitochondrial level supports deep
spatial analysis of otherwise intractable biological processes. Metabolism,
disease, aging, and other `genetic <genetics_>`__ and `epigenetic
<epigenetics_>`__ phenomena commonly associated with quasi-`Big Data`_ are all
valid targets for exhaustive study with BETSE.

To integrate these potent control systems with bioelectrical signaling, the
`activity <enzyme activity_>`__-modulated interaction between `gene products`_
and similar biochemicals is fully integrated with `ion channels <ion
channel_>`__, `ion pumps`_, and `gap junctions`_.

Validation
==========

BETSE is peer-reviewed software receiving continual evidence-based scrutiny.
Simulation output is reproducibly synchronized with experimental observations on
`membrane permeability`_, `resting potential`_, ion concentration, and similar
real-world biophysical quantities. Predictable outcomes have been demonstrated
for such well-known cases as:

- `Transmembrane voltage changes <transmembrane voltage_>`__ on perturbations
to single cell membrane states and environmental ion concentrations.
- `Transepithelial potential differences (TEPD) <transepithelial
potential_>`__.
- Bioelectrical signals at large-scale cellular wound sites.

For details, see our recently published `introductory paper <Reference_>`__.

License
=======

BETSE is open-source software `released <LICENSE>`__ under the permissive `BSD
2-clause license`_.

Reference
=========

BETSE is formally described in our `introductory paper <2016 article_>`__.
Third-party papers, theses, and other texts leveraging BETSE should (ideally)
cite the following:

`Pietak, Alexis`_ and `Levin, Michael`_, 2016. |2016 article name|_
|2016 journal name|_ *4*\ (55). :sup:`DOI: 10.3389/fbioe.2016.00055`

Subsequent papers expanding the BETSE architecture with additional theory,
experimental results, and comparative metrics include:

`Pietak, Alexis`_ and `Levin, Michael`_, 2017. |2017 article name|_
|2017 journal name|_ *14*\ (134), p.20170425. :sup:`DOI:
10.1098/rsif.2017.0425`

.. # FIXME: Add an image thumbnail above displaying the cover image selected by
.. # the prior journal for that edition's cover article.

Authors
=======

BETSE comes courtesy a dedicated community of `authors <author list_>`__ and
contributors_ – without whom this project would be computationally impoverished,
biologically misaligned, and simply unusable.

**Thanks, all.**

See Also
========

For prospective users:

- `Installation <dependencies_>`__, detailing BETSE's installation with
exhaustive platform-specific instructions.

For prospective contributors:

- `Development <doc/md/DEVELOP.md>`__, detailing development of the BETSE
codebase – philosophy, workflow, and otherwise.
- `Testing <doc/md/TEST.md>`__, detailing testing of the BETSE codebase –
`continuous integration`_, manual testing, and otherwise.
- `Freezing <doc/md/FREEZE.md>`__, detailing conversion of the BETSE codebase
into redistributable platform-specific executable binaries.

.. # ------------------( LINKS ~ betse )------------------
.. _author list:
doc/md/AUTHORS.md
.. _codebase:
https://gitlab.com/betse/betse/tree/master
.. _contributors:
https://gitlab.com/betse/betse/graphs/master
.. _dependencies:
doc/md/INSTALL.md
.. _testing:
https://gitlab.com/betse/betse/pipelines
.. _tarballs:
https://gitlab.com/betse/betse/tags

.. # ------------------( LINKS ~ betse : docs )------------------
.. _BETSE 0.4 documentation:
https://www.dropbox.com/s/n8qfms2oks9cvv2/BETSE04_Documentation_Dec1st2016.pdf?dl=0
.. _BETSE 0.3 documentation:
https://www.dropbox.com/s/fsxhjpipbiog0ru/BETSE_Documentation_Nov1st2015.pdf?dl=0

.. # ------------------( LINKS ~ betsee )------------------
.. _BETSEE:
https://gitlab.com/betse/betsee
.. _BETSEE codebase:
https://gitlab.com/betse/betsee/tree/master

.. # ------------------( LINKS ~ academia )------------------
.. _Pietak, Alexis:
https://www.researchgate.net/profile/Alexis_Pietak
.. _Levin, Michael:
https://ase.tufts.edu/biology/labs/levin
.. _Channelpedia:
http://channelpedia.epfl.ch
.. _Paul Allen Discovery Center:
http://www.alleninstitute.org/what-we-do/frontiers-group/discovery-centers/allen-discovery-center-tufts-university
.. _Paul Allen Discovery Center award:
https://www.alleninstitute.org/what-we-do/frontiers-group/news-press/press-resources/press-releases/paul-g-allen-frontiers-group-announces-allen-discovery-center-tufts-university
.. _Paul G. Allen Frontiers Group:
https://www.alleninstitute.org/what-we-do/frontiers-group
.. _Tufts University:
https://www.tufts.edu

.. # ------------------( LINKS ~ paper ~ 2016 )------------------
.. _2016 article:
http://journal.frontiersin.org/article/10.3389/fbioe.2016.00055/abstract

.. |2016 article name| replace::
**Exploring instructive physiological signaling with the bioelectric tissue
simulation engine (BETSE).**
.. _2016 article name:
http://journal.frontiersin.org/article/10.3389/fbioe.2016.00055/abstract

.. |2016 journal name| replace::
*Frontiers in Bioengineering and Biotechnology,*
.. _2016 journal name:
http://journal.frontiersin.org/journal/bioengineering-and-biotechnology

.. # ------------------( LINKS ~ paper ~ 2017 )------------------
.. |2017 article name| replace::
**Bioelectric gene and reaction networks: computational modelling of genetic, biochemical and bioelectrical dynamics in pattern regulation.**
.. _2017 article name:
http://rsif.royalsocietypublishing.org/content/14/134/20170425

.. |2017 journal name| replace::
*Journal of The Royal Society Interface,*
.. _2017 journal name:
http://rsif.royalsocietypublishing.org

.. # ------------------( LINKS ~ science )------------------
.. _bioelectricity:
https://en.wikipedia.org/wiki/Bioelectromagnetics
.. _biochemical reaction networks:
http://www.nature.com/subjects/biochemical-reaction-networks
.. _electrodiffusion:
https://en.wikipedia.org/wiki/Nernst%E2%80%93Planck_equation
.. _electro-osmosis:
https://en.wikipedia.org/wiki/Electro-osmosis
.. _enzyme activity:
https://en.wikipedia.org/wiki/Enzyme_assay
.. _ephaptic coupling:
https://en.wikipedia.org/wiki/Ephaptic_coupling
.. _epigenetics:
https://en.wikipedia.org/wiki/Epigenetics
.. _extracellular environment:
https://en.wikipedia.org/wiki/Extracellular
.. _finite volume:
https://en.wikipedia.org/wiki/Finite_volume_method
.. _galvanotaxis:
https://en.wiktionary.org/wiki/galvanotaxis
.. _gap junction:
.. _gap junctions:
https://en.wikipedia.org/wiki/Gap_junction
.. _gene products:
https://en.wikipedia.org/wiki/Gene_product
.. _gene regulatory networks:
https://en.wikipedia.org/wiki/Gene_regulatory_network
.. _genetics:
https://en.wikipedia.org/wiki/Genetics
.. _Hodgkin-Huxley (HH) formalism:
https://en.wikipedia.org/wiki/Hodgkin%E2%80%93Huxley_model
.. _local field potentials:
https://en.wikipedia.org/wiki/Local_field_potential
.. _membrane permeability:
https://en.wikipedia.org/wiki/Cell_membrane
.. _resting potential:
https://en.wikipedia.org/wiki/Resting_potential
.. _tight junctions:
https://en.wikipedia.org/wiki/Tight_junction
.. _transmembrane voltage:
https://en.wikipedia.org/wiki/Membrane_potential
.. _transepithelial potential:
https://en.wikipedia.org/wiki/Transepithelial_potential_difference

.. # ------------------( LINKS ~ science : ions )------------------
.. _anionic proteins:
https://en.wikipedia.org/wiki/Ion#anion
.. _bicarbonate: https://en.wikipedia.org/wiki/Bicarbonate
.. _calcium: https://en.wikipedia.org/wiki/Calcium_in_biology
.. _chloride: https://en.wikipedia.org/wiki/Chloride
.. _hydrogen: https://en.wikipedia.org/wiki/Hydron_(chemistry)
.. _sodium: https://en.wikipedia.org/wiki/Sodium_in_biology
.. _potassium: https://en.wikipedia.org/wiki/Potassium_in_biology

.. # ------------------( LINKS ~ science : channels )------------------
.. _ion channel:
https://en.wikipedia.org/wiki/Ion_channel
.. _leak channels:
https://en.wikipedia.org/wiki/Leak_channel
.. _ligand-gated channels:
https://en.wikipedia.org/wiki/Ligand-gated_ion_channel
.. _voltage-gated ion channels:
https://en.wikipedia.org/wiki/Voltage-gated_ion_channel

.. |calcium-gated K+ channels| replace::
Calcium-gated K\ :sup:`+` channels
.. _calcium-gated K+ channels:
https://en.wikipedia.org/wiki/Calcium-activated_potassium_channel

.. # ------------------( LINKS ~ science : channels : type )------------------
.. _HCN1: http://channelpedia.epfl.ch/ionchannels/61
.. _HCN2: http://channelpedia.epfl.ch/ionchannels/62
.. _HCN4: http://channelpedia.epfl.ch/ionchannels/64
.. _Kir2.1: http://channelpedia.epfl.ch/ionchannels/42
.. _Kv1.1: http://channelpedia.epfl.ch/ionchannels/1
.. _Kv1.2: http://channelpedia.epfl.ch/ionchannels/2
.. _Kv1.5: http://channelpedia.epfl.ch/ionchannels/5
.. _Kv3.3: http://channelpedia.epfl.ch/ionchannels/13
.. _Kv3.4: http://channelpedia.epfl.ch/ionchannels/14
.. _Nav1.2: http://channelpedia.epfl.ch/ionchannels/121
.. _Nav1.3: http://channelpedia.epfl.ch/ionchannels/122
.. _Nav1.6: http://channelpedia.epfl.ch/ionchannels/125
.. _L-type Ca: http://channelpedia.epfl.ch/ionchannels/212
.. _T-type Ca: https://en.wikipedia.org/wiki/T-type_calcium_channel

.. |P/Q-type Ca| replace:: :sup:`P`\ /\ :sub:`Q`-type Ca
.. _P/Q-type Ca:
http://channelpedia.epfl.ch/ionchannels/78

.. # ------------------( LINKS ~ science : pumps : type )------------------
.. _ion pumps:
https://en.wikipedia.org/wiki/Active_transport

.. # ------------------( LINKS ~ science : pumps : type )------------------
.. _V-ATPase: https://en.wikipedia.org/wiki/V-ATPase

.. |Ca2+-ATPase| replace:: Ca\ :sup:`2+`-ATPase
.. _Ca2+-ATPase: https://en.wikipedia.org/wiki/Calcium_ATPase

.. |H+/K+-ATPase| replace:: H\ :sup:`+`/K\ :sup:`+`-ATPase
.. _H+/K+-ATPase: https://en.wikipedia.org/wiki/Hydrogen_potassium_ATPase

.. |Na+/K+-ATPase| replace:: Na\ :sup:`+`/K\ :sup:`+`-ATPase
.. _Na+/K+-ATPase: https://en.wikipedia.org/wiki/Na%2B/K%2B-ATPase

.. # ------------------( LINKS ~ science : computer )------------------
.. _Big Data:
https://en.wikipedia.org/wiki/Big_data
.. _comma-separated values:
https://en.wikipedia.org/wiki/Comma-separated_values
.. _continuous integration:
https://en.wikipedia.org/wiki/Continuous_integration
.. _directed graphs:
https://en.wikipedia.org/wiki/Directed_graph
.. _genenic algorithms:
https://en.wikipedia.org/wiki/Genetic_algorithm
.. _knowledge-based systems:
https://en.wikipedia.org/wiki/Knowledge-based_systems

.. # ------------------( LINKS ~ os : linux )------------------
.. _APT:
https://en.wikipedia.org/wiki/Advanced_Packaging_Tool
.. _POSIX:
https://en.wikipedia.org/wiki/POSIX
.. _Ubuntu:
.. _Ubuntu Linux:
https://www.ubuntu.com
.. _Ubuntu Linux 16.04 (Xenial Xerus):
http://releases.ubuntu.com/16.04

.. # ------------------( LINKS ~ os : macos )------------------
.. _Homebrew:
http://brew.sh
.. _MacPorts:
https://www.macports.org

.. # ------------------( LINKS ~ os : windows )------------------
.. _WSL:
https://msdn.microsoft.com/en-us/commandline/wsl/install-win10

.. # ------------------( LINKS ~ software )------------------
.. _Anaconda:
https://www.continuum.io/downloads
.. _Appveyor:
https://ci.appveyor.com/project/betse/betse/branch/master
.. _BSD 2-clause license:
https://opensource.org/licenses/BSD-2-Clause
.. _dill:
https://pypi.python.org/pypi/dill
.. _FFmpeg:
https://ffmpeg.org
.. _Git:
https://git-scm.com/downloads
.. _GitLab-CI:
https://about.gitlab.com/gitlab-ci
.. _Graphviz:
http://www.graphviz.org
.. _imageio:
https://imageio.github.io
.. _Libav:
https://libav.org
.. _Matplotlib:
http://matplotlib.org
.. _NumPy:
http://www.numpy.org
.. _MEncoder:
https://en.wikipedia.org/wiki/MEncoder
.. _Python 3:
https://www.python.org
.. _py.test:
http://pytest.org
.. _SciPy:
http://www.scipy.org
.. _YAML:
http://yaml.org

.. # ------------------( LINKS ~ software : pyside2 )------------------
.. _PySide2:
https://wiki.qt.io/PySide2
.. _PySide2 5.6:
https://code.qt.io/cgit/pyside/pyside.git/log/?h=5.6
.. _PySide2 installation:
https://wiki.qt.io/PySide2_GettingStarted
.. _PySide2 PPA:
https://launchpad.net/~thopiekar/+archive/ubuntu/pyside-git
.. _Qt:
https://www.qt.io
.. _Qt 5.6:
https://wiki.qt.io/Qt_5.6_Release


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betse-0.6.0-py3-none-any.whl (1.9 MB) Copy SHA256 hash SHA256 Wheel py3
betse-0.6.0.tar.gz (1.5 MB) Copy SHA256 hash SHA256 Source None

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