"Me_U _We are Chemist": 2014

Sunday, 13 April 2014

HISTORY OF INTERNET

Assalamualaikum W.B.T and a very good evening to all readers. Today we would like to brief a little bit about the history of Internet.

I.N.T.E.R.N.E.T

We're sure that almost everyone know what internet is and most of people just couldn't survive without it. Everyone just love to surf the internet everywhere and everytime. However, do you guys know how does the internet exist? Now let us tell you about the early invention of the internet.

Internet was firstly invented during the Cold War between the USA against the Soviet Union and Eastern Bloc. In 1957, Russian had launched their Sputnik satellite to militarize the space and to get huge advantage over the USA and threatened their security. Because of feared, the USA team tried to came up with ideas to protect their security thus they created ARPA (Advanced Research Project Agency)

Nowadays, internet can be used for many application and system.

Here are a few of internet contributors;

Internet Contributors

Year	Contributors	Explaination
1962	J.C.R Linklider	A scientist from MIT and ARPA named J.C.R Licklider wrote several memos in what he termed was a 'Galactic Network'. The network would enable government leaders to communicate even if the Soviets destroyed the telephone system.
1965	MIT	Another scientist from MIT developed a way of sending information from one computer to another that he called "packet switching". Packet switching breaks data down into blocks, or packets, before sending it to its destination.
1970	Vinton Cerf	A computer scientist that developed a way for all of the computers on the world's mini-network to communicate with one another

For more information regarding the internet, you can find it here;

Internet

Thursday, 27 March 2014

XML ( Extensible Markup Language )

Assalamualaikum w.b.t

Hi everyone! Today we are going to share with you about XML. Actually,

what is XML?

XML is stand for Extensible Markup Language ,which is created to structure, store, and transport information. XML is only just Plain Text and nothing special. Besides that, the software that can handle plain text can also handle XML.

Function of XML

The most important part in this topic of XML is XML is not a Replacement for HTML.

It is important to understand that XML is not a replacement for HTML. In most web applications, XML is used to transport data, while HTML is used to format and display the data.

Table 1: Difference between XML and HTML

	XML	HTML
Definition	Markup language defines a set of rules for encoding documents that can be read by both humans and machines. Designed with focus on storing and transporting data	Markup language for displaying web pages in a web browser. Designed to display data with focus on how the data looks
Date when invented	1996	1990
Type	Dynamic	Static
Language Type	Neither presentation, nor programming	Presentation
Tags	Custom tags can be created by the author	Predefined

Next, we proceed with the example of XML Document. XML documents use a self-describing and simple syntax:
–<?xml version="1.0" encoding="ISO-8859-1"?><note><to>Tove</to><from>Jani</from><heading>Reminder</heading><body>Don't forget me this weekend!</body></note>
The first line is the XML declaration and it defines the XML version (1.0) and the encoding used (ISO-8859-1 = Latin-1/West European character set). The next line describes the root element of the document (like saying: "this document is a note"): <note>
Besides that, XML also has their own syntax rule:
1) All XML Elements Must Have a Closing Tag

2) In HTML, you will often see elements that don't have a closing tag:

–<p>This is a paragraph

<p>This is another paragraph

3) In XML, it is illegal to omit the closing tag. All elements must have a closing tag:

–<p>This is a paragraph</p>

<p>This is another paragraph</p>

For more information on XML, you may click the link below to go through the portal:

XML

Last but not least, hope that you will understand what is XML and the know the difference between XML and HTML. Happy holiday!

" Learn to get in touch with the silence within yourself, and know that everything in life has purpose. There are no mistakes, no coincidences, all events are blessings given to us to learn from."

Elisabeth Kubler-Ross

Wednesday, 5 March 2014

Protein Data Bank

Assalamualaikum and Good evening..

Today we would like to educate the readers about the Protein Data Bank. The Protein Data Bank (PDB) is a repository for the three-dimensional structural data of large biological molecules, such as proteins and nucleic acids. Besides, the data typically obtained by X-ray crystallography or NMR spectroscopy. Protein Data Bank is an information portal to biological macromolecular structures. Click the link below to go through the portal;

Protein Data Bank

Another application that related to Protien Data Bank is RasMol. RasMol is a computer program written for molecular graphics visualization intended and used primarily for the depiction and exploration of biological macromolecule structures. The software can be download from here;

RasM ol

Below are the example of RasMol software.

One of the example of biological molecular structure is N1 Neuraminidase H274Y + Oseltamivir.

Here is the image of the structure and data :

Table 1: Summary of structure of N1 Neuraminidase H274Y + Oseltamivir

Molecule	Neuraminidase H274Y + oseltamivir
Type	Protein
Organism	Influenza A virus (A/tern/Australia/G70C/1975(H11N9))
Gene name	NA
Scientific Name	Influenza A virus
Stoichiometry	Homo 4-mer - A4
Mutation	N294S

Last but not least, we hope that you get clear view about the Protein Data Bank and RasMol Software. This software is very useful for biologist and biochemist since its are applied in their daily work. Thats all from us. Thank You.

Thursday, 20 February 2014

First ChemSketch

Assalamualaikum w.b.t

In prvious semester, Dr Anwar had told us install Chemsketch software. This software actually is use to draw structure, calculate the molecular weight, and also naming the structures. It should be practiced in our lab reports. However, we can't manage to use this software

because we didn't know how to use it.

"GLUCOSE"

what is the structure of glucose?

Now, we will teach you all how to draw the simple structure of glucose by using the chemsketch.

1) First, you must install the software of CHEM SKETCH.

You may click this link to direct download :

CHEMSKETCH DOWNLOAD

2) Then, open the chemsketch.

Next, click

benzene structure on the right side. Click rotate and rotate it.

3) Then, put oxygen and hydroxide on each first, second, third, forth and fifth carbon of benzene, followed by oxygen on six carbon.

4) Lastly dont forget to save the structure.

Below is the structure of glucose that we get from the Google. Now compare it with the previous structure from chemsketch software.

Here is the example table of name and structure of compound that you can practice by using chemsketch :

Name	Molecular Formula
Methane	CH4
Ethane	C2H4
Propane	C3H6
Butane	C4H8

Lastly, hope doctor can proud with us as we can use this software. TQ

Thursday, 13 February 2014

Assalamualaikum W.B.T and happy weekend!!!

In previous class we had learned about the HTML, and we manage to do a few HTML tutorial such as creating tables, listing and publishing image. We are totally proud of ourselves because it's not that simple to do the coding since ti's quite complicated and really test our patient. However it's was great to have our own coding after struggling for two hours.

Actually, what is HTML stands for?? HTML or HyperText Markup Language is the main markup language for creating web pages and other information that can be displayed in a web browser. HTML is written in the form of HTML elements consisting of tags enclosed in angle bracket such as <html> , within the web page content. HTML also can be used to create tables, insert images either moving or non-moving images, getting through a link, create ordered and unordered lists and create documents.

Below are the examples of a few coding done by us. The first one is to create a table.

Coding :

<html>

<body>

<html>

<body>

<h4>with cellpadding: </h4>

<table border ="1"

cellpadding="10">

<tr>

<tr>

<td>Munirah</td>

<td>Kemaman,Terengganu</td>

</tr>

<td>Gemas,Negeri Sembilan</td>

</tr>
</table>

</body>

</html>

Table :

Name	Address
Munirah	Kemaman,Terengganu
Azah	Gemas,Negeri Sembilan

The second one is to get through a link.

Coding :

<html>
<body>
<p>
<a href="https://www.facebook.com/">See My Facebook.</a>

</p>
</html>

See My Facebook.

Thats all from us about html, hope u will learn something from this entry.Till we me again.

Bye Bye!!!

Wednesday, 5 February 2014

Concept In Physic

Assalamualaikum w.b.t

We are blogger now!!! :D Yeaaah!!!

First and foremost, the purpose for this blog is to be used for our KOS 1110 lecture with Dr Noraslinda during our second semester 2013/2014.
( We're the first baby of Applied Chemistry Department )

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CoNcEpT iN pHySiCs

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Do you guys familiar with this course?

I'm sure as a chemist students, physics is one of the important subject we need to master.

This is Uncle Newton!!! :D

For this first entry, we'll told you about the basic in Concept in Physics. Still remember about the SI units? We need to cover it in the first chapter and of course we need to memorize it and use it correctly. Almost in every answers we must put their SI unit and sometimes we forgot to put it, it's a big frustrating because the concept is simple.
NO UNIT, NO MARKS!!! :(

This is the example of SI units

Quantity	Name	Symbols
Mass	Kilogram	kg
Lenght	Meter	m
Time	Second	t

For more information about the SI Unit, you may click here.

SI Units

We enjoy the physics lecture with our three lecturers

-Our gorgeous Dr Khartini

-Our kind hearted Dr Suryadi

-Our cool Dr Jesni

We think it is enough for this moment, till we meet again in another entry.

SEE YOU SOON!!

Best Regards,

Norsakinah Ideris & Nur Aisyah Syafiqah Murat