Free science articles software for linux

The Open Clip Art Library is a collection of royalty free (public domain) clip art in SVG format, enhanced with creative commons metadata.
It can be redistributed with free software or closed software and with various software distributions.
Enhancements:
- The collection now contains a total of 6900 images.
- New top level categories include "science" and "electronics".
- New subsections include "religion", "astronomy", "network", and more.
- The flags collection has been fleshed out and improved.
- A bunch of new signs and symbols were added.
- There are lots of new vehicles, office, sports, music, and toys clipart.

News::Archive is a Usenet news archiving package for downloading and later accessing news articles in bulk.

It can load articles laid out in INN format, retrieve them from a running news server, or just take articles one-by-one. News::Archive module is compatible with News::Web and Net::NNTP::Server, so the articles can be shared either via the Web or via NNTP.

SYNOPSIS

use News::Archive;
my $archive = new News::Archive
( basedir => /home/tskirvin/kiboze );

# Get a news article
my $article = News::Article->new(*STDIN);
my $msgid = article->header(message-id);

die "Already processed $msgidn"
if ($archive->article( $messageid ));

# Get the list of groups were supposed to be saving the article into
my @groups = split(s*,s*, $article->header(newsgroups) );
map { s/s+//g } @groups;

# Make sure were subscribed to these groups
foreach (@groups) { $archive->subscribe($_) }

# Actually save the article.
my $ret = $archive->save_article(
[ @{$article->rawheaders}, , @{$article->body} ], @groups );
$ret ? print "Accepted article $messageidn"
: print "Couldnt save article $messageidn";

News::Archive keeps several files to keep track of its archives:

active file

Keeps track of all newsgroups we are "subscribed" to and all of the information that changes regularly - the number of articles we have archived, the current first and last article numbers, etc.

Watched over with News::Active.

history database

A simple database keeping track of articles by Message-ID. Makes access by ID easy, and ensures that we dont save the same article twice. The database chosen to maintain these is user-determined.

newsgroup file

Keeps track of more static information about the newsgroups we are subscribed to - descriptions, creation dates, etc.

Watched over with News::GroupInfo.

archive directory

Directory structure of all articles, with each article saved as a single textfile within a directory structure laid out at one section of the group name per directory, such as "rec/games/mecha". Crossposts are hardlinked to other directory structures.

Articles are actually divided into sub-directories containing up to 500 articles, to avoid Unix directory size performance limitations. Individual files are thus stored in a file such as "rec/games/mecha/1.500/1".

Each newsgroup also contains overview information, watched over with
News::Overview. This overview file goes in the top of the structure,
such as "rec/games/mecha/.overview".

You may note that these files are very similar to how INN does its work. This is intentional - this package is meant to act in many ways like a lighter-weight INN.

Usage:

Global Variables

The following variables are set within News::Archive, and are global throughout all invocations.

$News::Active::DEBUG
Default value for "debug()" in new objects.

$News::Active::HOSTNAME
Default value for "hostname()" in new objects. Obtained using
"Sys::Hostname::hostname()".

$News::Active::HASH
The number of articles to keep in each directory. Default is 500;
change this at your own peril, since things may get screwed up later
if you change it after archiving any articles!

Convert::BulkDecoder is a Perl module to extract (binary) data from mail and news messages.

SYNOPSIS

use Convert::BulkDecoder;
my $cvt = new Convert::BulkDecoder::;
# Collect the articles into an array ref.
my $art = [];
# Decode.
my $res = $cvt->decode($art);
die("Failed!") unless $res eq "OK";
print "Extracted ", $cvt->{size}, " bytes to file ", $cvt->{file}, "n";

Convert::BulkDecoder can be used to decode binary contents as included in email and news articles. It supports UUdecoding, ydecoding and MIME attachments. The contents may be split over multiple articles (files), but must be supplied to the decode() function in one bulk.

For yencoded contents, it is possible to verify file consistency using length and checksum tests.

Ovidentia is a professional collaborative/groupware portal generator featuring an administrable management tool with a workflow for the approval to publish articles, comments, files, or vacation requests.
It also features an agenda (shareable), an integrated directory, charts, an LDAP directory interface, add-ons support, a mail interface, and a WYSIWYG HTML editor to publish articles, news, posts, or write email. The project supports LDAP, Ovidentia, and Active Directory authentication.
Enhancements:
- Bugs correction
- Security corrective measures
- Vacation requests management evolutions

INews is a system to write and publish newspapers on the internet.

INews is different, because:

* the newspaper has a traditional structure, with pages and articles distributed like in a paper newspaper.
* the newspaper is not published using HTML, but can be read with a java application.

INews is a complete system, composed by:

* a server application.
* an editor application, to write and publish editions of the newspaper.
* a reader application, to read the last edition of the newspaper on the internet.
* an administration application.

Purposes of the system are:

* speed and simplicity to write and publish the newspaper:
if the articles are ready as RTF documents (written with the most common word processors) and the pictures are ready, it should be a matter of minutes to publish the newspaper.
* to work in team to publish the newspaper.
* to keep an archive with all the articles, images and editions of the newspaper.
* to be open: all the articles and images are saved in the filesystem in a directory tree.

It is possible to build new parts types (like articles and images) and add them to the system.

Getbinnews is a newsreader developed in C using the GTK user interface (for Linux, FreeBSD and OpenBSD OS) .
The aim of Getbinnews is to extract in some newsgroups a binary file (mp3, jpg, gif,mpg, asf, avi, divx...) splited in articles with mime, uuencode or yenc format.
Main features:
Connection support
- definition of name and port of news server
- definition of user and password to connect the news server
- times reconnection in some cases (timeout, connection error or connection reject)
- number of connections
- bandwidth throttle
Dialer
- connection and deconnection to internet
Filter
- filter by fields
- filter by size
- filter by size of articles
- filter if incomplete
- filter if part 1 is missing
- filter if more than n articles
Search newsgroups
- search newsgroups on server
- search/filter newsgroups by regex expression
- search by wildmat
Search for article
- selection of all articles of a file (right click)
- search for subject
- filter for subject
- number of articles to download.
- number of selected articles (right click)
Decode methods
- yenc support
- uuencode support
- base64 support
- mime support
Files
- definition of files directory
- definition of articles directory
- cleanup articles
- cleanup files
- behavior if files exist.
- behavior if not enough space
- dont delete articles.
Newsgroups
- download list of newsgroups
Group List
- Definition of newsgroups list to search articles.
- personnalisation of search for a particular newsgroups
Scheduler
- Schedule periodic search (daily, weekly, or monthly)
- Schedule non periodic search
- hang up internet connection at end of the search.
History
- Creation of an history file to stop download articles already download
hide button to stop search.

American Political Science: Campaign Simulator project is a statistically based political campaign simulation game.
The Campaign Simulator is an attempt to statistically model and predict the outcome of an American presidential election.
Several users assume the roles of competitive candidates and inflict the repercussions of certain decisions on a GSS-based dataset.
The application is written in Java and supports all operating systems with a Java 1.5 VM.
Main features:
- Time is not the only limiting variable. In fact, time may not be the proper limit as most operations may be performed in tandem; an economic system that allows fund raising elements should be implemented.
- The current choices all utilize the same dataset algorithm to effect the populace in similar ways- this set of scripts should be broadened and deepened as they are too high level.
- The Python Architecture needs polishing- the internal IDE is not complete, and the ability to assign scripts to run at differing points in the lifetime of the application has yet to be created.
- The installer should place links on the desktops of Mac and Unix/Linux Systems.
- Some of the small features planned, such as a GUI for dialog creation, have been cut for the deadline and should be added.