4 reasons to use "SYNTAX function in SPSS Commands

These are 4 reasons to use "SYNTAX" in SPSS Commands.
The syntax is basically a text file where you can add comments and SPSS commands.

4 Reasons Everyone should use the syntax function in SPSS Commands are:

• It is a way of documenting and archiving everything you have done with the data material.

• It is easy to repeat parts or all of the analysis.

• Other people involved in the data material can easily understand what you have done and how you have done it.

• It saves an enormous amount of time.

Online Basic Definitions on Statistics

These are "Online Basic Definitions on Statistics". It can boost vocabulary in Bio-Statistics.
It can also enhance basic knowledge of Bio-Statisticstics.

1. What is "A Population"?

A population1 - It is any specific collection of objects of interest.

2. What is "A measurement and sample data"?

"A measurement" is a number or attribute computed for each member of a population or of a sample.

Skills of A Bioinformatician

Bioinformatics is vast field to develope "Skills of  A Bioinformatician".
A bioinformatician needs regularly gaining of knowledge of biology, biotechnology and computer at the same time. 
here, Skills of a Bioinformatician are given which clears thoughts of what skills of bioinformatics are needed by students of bioinformatics.

Skills of a Bioinformatician :

 According to the scientist working at companies such as Celera Genomics and Eli Lilly, the following "core requirements" for bioinformaticians:

1. Fairly deep background in some aspect of molecular biology. 
It can be biochemistry, molecular biology, molecular biophysics, or even molecular modeling, but without a core of knowledge of molecular biology is like, "run into brick walls too often."

2. Understanding the central dogma of molecular biology, how and why DNA sequence is transcribed into RNA and translated into protein is vital.

3. Should have substantial experience with at least one or two major molecular biology software packages, either for sequence analysis or molecular modeling. 
The experience of learning one of these packages makes it much easier to learn to use other software quickly.

4. Should be comfortable working in a command-line computing environment. Working in Linux or UNIX will provide this experience.

5. Should have experience with programming in a computer language such as Java, Unix, C, C++, RDBMS such as Oracle and Sybase, CORBA, Perl or Python, CGI and web scripting.

Chronological History of Bioinformatics

A Chronological History of Bioinformatics:

Bio-informaticians and students of Bioinformatics must know "Chronological History of Bioinformatics" Bioinformatics is multi-disciplinary field for finding solutions of problems in BIOLOGY by using computer software and tools. 

A Chronological History of Bioinformatics:

• 1953 - Watson & Crick proposed the double helix model for DNA based x-ray data obtained by Franklin & Wilkins.

• 1954 - Perutz's group develop heavy atom methods to solve the phase problem in protein crystallography.

• 1955 - The sequence of the first protein to be analysed, bovine insulin, is announed by F.Sanger.

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• 1969 - The ARPANET is created by linking computers at Standford and UCLA.

• 1970 - The details of the Needleman-Wunsch algorithm for sequence comparison are published.

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• 1972 - The first recombinant DNA molecule is created by Paul Berg and his group.

• 1973 - The Brookhaven Protein DataBank is announeced (Acta.Cryst.B,1973,29:1764). Robert Metcalfe receives his Ph.D from Harvard University. His thesis describes Ethernet.

• 1974 - Vint Cerf and Robert Khan develop the concept of connecting networks of computers into an "internet" and develop the Transmission Control Protocol (TCP).

• 1975 - Microsoft Corporation is founded by Bill Gates and Paul Allen. Two-dimensional electrophoresis, where separation of proteins on SDS polyacrylamide gel is combined with separation according to isoelectric points, is announced by P.H.O'Farrel.

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• 1988 - The National Centre for Biotechnology Information (NCBI) is established at the National Cancer Institute. The Human Genome Intiative is started (commission on Life Sciences, National Research council. Mapping and sequencing the Human Genome, National Academy Press: wahington, D.C.), 

• 1988- The FASTA algorith for sequence comparison is published by Pearson and Lupman. A new program, an Internet computer virus desined by a student, infects 6,000 military computers in the US.

• 1989 - The genetics Computer Group (GCG) becomes a privatae company. Oxford Molceular Group,Ltd.(OMG) founded, UK by Anthony Marchigton, David Ricketts, James Hiddleston, Anthony Rees, and W.Graham Richards. Primary products: Anaconds, Asp, Cameleon and others (molecular modeling, drug design, protein design).

• 1990 - The BLAST program (Altschul,et.al.) is implemented. Molecular applications group is founded in California by Michael Levitt and Chris Lee. Their primary products are Look and SegMod which are used for molecular modeling and protein deisign. InforMax is founded in Bethesda, MD. The company's products address sequence analysis, database and data management, searching, publication graphics, clone construction, mapping and primer design.

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• 1991 - The research institute in Geneva (CERN) announces the creation of the protocols which make -up the World Wide Web. The creation and use of expressed sequence tags (ESTs) is described. Incyte Pharmaceuticals, a genomics company headquartered in Palo Alto California, is formed. Myriad Genetics, Inc. is founded in Utah. The company's goal is to lead in the discovery of major common human disease genes and their related pathways. The company has discovered and sequenced, with its academic collaborators, the

following major genes: BRCA1, BRACA1 , CHD1, MMAC1, MMSC1, MMSC2, CtIP, p16, p19 and MTS2.

• 1993 - CuraGen Corporation is formed in New Haven, CT. Affymetrix begins independent operations in Santa Clara, California.

• 1994 - Netscape Communications Corporation founded and releases Naviagator, the commerical version of NCSA's Mozilla. Gene Logic is formed in Maryland. The PRINTS database of protein motifs is published by Attwood and Beck. Oxford Molecular Group acquires IntelliGenetics.

• 1995 - The Haemophilus influenzea genome (1.8) is sequenced. The Mycoplasma genitalium genome is sequenced.

• 1996 - The genome for Saccharomyces cerevisiae (baker's yeadt, 12.1 Mb) is sequenced. The prosite database is reported by Bairoch, et.al. Affymetrix produces the first commerical DNA chips.

• 1997 - The genome for E.coli (4.7 Mbp) is published.Oxford Molecualr Group acquires the Genetics Computer Group. LION bioscience AG founded as an intergrated genomics company with strong focus on bioinformatics. The company is built from IP out of the European Molecualr Biology Laboratory (EMBL), the European Bioinformtics Institute (EBI), the GErman Cancer Research Center (DKFZ), and the University of Heidelberg.paradigm Genetics Inc., a company focussed on the application of genomic technologies to enhance worldwide food and fiber production, is founded in Research Triangle Park, NC. deCode genetics publishes a paper that described the location of the FET1 gene, which is responsible for familial essential tremor, on chromosome 13 (Nature Genetics).

• 1998 - The genomes for Caenorhabitis elegans and baker's yeast are published.The Swiss Institute of Bioinformatics is established as a non-profit foundation.Craig Venter forms Celera in Rockville, Maryland. PE Informatics was formed as a center of Excellence within PE Biosystems. This center brings together and leverges the complementary expertise of PE Nelson and Molecualr Informatics, to further complement the genetic instrumention expertise of Applied Biosystems.Inpharmatica, a new Genomics and Bioinformatics company, is established by University College London, the Wolfson Institute for Biomedical Research, five leading scientists from major British academic centres and Unibio Limited. GeneFormatics, a company dedicated to the analysis and predication of protein structure and function, is formed in San Diego.Molecualr Simulations Inc. is acquired by Pharmacopeia.

• 1999 - deCode genetics maps the gene linked to pre-eclampsia as a locus on chromosome 2p13.

• 2000 - The genome for Pseudomonas aeruginosa (6.3 Mbp) is published. The Athaliana genome (100 Mb) is secquenced.The D.melanogaster genome (180 Mb) is sequenced.Pharmacopeia acquires Oxoford Molecular Group.

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• 2001 - The huam genome (3,000 Mbp) is published.

Basic Bioinformatics Terms on letter Y

These Basic Bioinformatics Terms on letter - Y. It can boost vocabulary in bioinformatics. It can also enhance basic knowledge of Bioinformatics.

1. What is "Yeast artificial chromosome (YAC)"?

Yeast artificial chromosome (YAC)- It is a cloning vector that replicates in yeast and can contain inserts about 1 Mb in size.

Basic Terms in Bioinformatics=>

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Basic Bioinformatics Terms on letter W

These Basic Bioinformatics Terms on letter - W. It can boost vocabulary in bioinformatics. It can also enhance basic knowledge of Bioinformatics.

1. What is "WAIS"?

WAIS - It is wide area information server, a service that allows users to intelligently search for information among databases distributed throughout the Internet.

2. What is "WAN"?

WAN - wide area network, a group of geographically separated computers connected via