Free significance software for mac

Requirements: Mac OS X 10.2 or later.

Aztec Calendar is a nice interesting widget! The Aztec date as presented above shows the name and number of the year (xiuhpohualli in Nahuatl, the language of the Aztecs), the name of the 13-day week and the name and number of the day in the tonalpohualli (260-day ritual day count).
To understand the workings of the Aztec calendar and its significance for Aztec (or Nahua) culture, see Introduction to the Aztec Calendar.
To find out the Aztec equivalent of any given date, go to the Date Calculator. Enter your birthdate and find out your Aztec name!
You can can even change the way the Aztec date on this site is correlated to our (Gregorian) date. To do so, go to Preferences. Experts can even use any correlation they prefer.
MacOSX users can now have the Aztec Calendar on the desktop!
Enhancements:
- Minor usability changes.

The Basic Local Alignment Search Tool (BLAST) finds regions of local similarity between sequences. The program compares nucleotide or protein sequences to sequence databases and calculates the statistical significance of matches. BLAST can be used to infer functional and evolutionary relationships between sequences as well as help identify members of gene families.
Main features:
Nucleotide
- Quickly search for highly similar sequences (megablast)
- Quickly search for divergent sequences (discontiguous megablast)
- Nucleotide-nucleotide BLAST (blastn)
- Search for short, nearly exact matches
- Search trace archives with megablast or discontiguous megablast
Protein
- Protein-protein BLAST (blastp)
- Position-specific iterated and pattern-hit initiated BLAST (PSI- and PHI-BLAST)
- Search for short, nearly exact matches
- Search the conserved domain database (rpsblast)
- Protein homology by domain architecture (cdart)
Translated
- Translated query vs. protein database (blastx)
- Protein query vs. translated database (tblastn)
- Translated query vs. translated database (tblastx)
Genomes
- Human, mouse, rat, chimp , cow, pig, dog, sheep, cat
- Chicken, puffer fish, zebrafish
- Environmental samples
- Protozoa
- Insects, nematodes, plants, fungi, microbial genomes, other eukaryotic genomes
Special
- Search for gene expression data (GEO BLAST)
- Align two sequences (bl2seq)
- Screen for vector contamination (VecScreen)
- Immunoglobin BLAST (IgBlast)
- SNP BLAST
Meta
- Retrieve results.