Python Programming Basics
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Python programming basics, installation process, loops in python, if else (conditional loop), syntax, etc
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Acidic, Basic, and
Neutral
Welcome to the fascinating world of acids and bases! Join siblings Ashwin and
Keerthi as they explore the colorful world of substances at their school's
National Science Day fair. Their adventure begins with a mysterious white paper
that reveals hidden messages when sprayed with a special liquid.
In this presentation, we'll discover how different substances can be classified as
acidic, basic, or neutral. We'll explore natural indicators like litmus, red rose
extract, and turmeric that help us identify these substances through color
changes. We'll also learn about neutralization reactions and their applications in
our daily lives.
by sandeep swamy
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Separation:
HPLC separates components based on their differing affinities for the stationary phase. The components that interact more strongly with the stationary phase will move more slowly through the column, while those that interact less strongly will move faster.
Identification:
The separated components are detected as they exit the column, and the time at which each component exits the column can be used to identify it.
Quantification:
The area of the peak on the chromatogram (the graph of detector response versus time) is proportional to the amount of each component in the sample.
Principle:
HPLC relies on a high-pressure pump to force the mobile phase through the column. The high pressure allows for faster separations and greater resolution compared to traditional liquid chromatography methods.
Mobile Phase:
The mobile phase is a solvent or a mixture of solvents that carries the sample through the column. The composition of the mobile phase can be adjusted to optimize the separation of different components.
Stationary Phase:
The stationary phase is a solid material packed inside the column that interacts with the sample components. The type of stationary phase is chosen based on the properties of the components being separated.
Applications of HPLC:
Analysis of pharmaceutical compounds: HPLC is widely used for the analysis of drugs and their metabolites.
Environmental monitoring: HPLC can be used to analyze pollutants in water and soil.
Food chemistry: HPLC is used to analyze the composition of food products.
Biochemistry: HPLC is used to analyze proteins, peptides, and nucleic acids.
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The YSPH Virtual Medical Operations Center Briefs (VMOC) were created as a service-learning project by faculty and graduate students at the Yale School of Public Health in response to the 2010 Haiti Earthquake. Each year, the VMOC Briefs are produced by students enrolled in Environmental Health Science Course 581 - Public Health Emergencies: Disaster Planning and Response. These briefs compile diverse information sources – including status reports, maps, news articles, and web content– into a single, easily digestible document that can be widely shared and used interactively. Key features of this report include:
- Comprehensive Overview: Provides situation updates, maps, relevant news, and web resources.
- Accessibility: Designed for easy reading, wide distribution, and interactive use.
- Collaboration: The “unlocked" format enables other responders to share, copy, and adapt seamlessly.
The students learn by doing, quickly discovering how and where to find critical information and presenting it in an easily understood manner.
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Python Programming Basics
- 1. Kashmira Rao Pramod Rajan Amarjeet Sav
- 2. Introduction History Features Installation Basic Datatypes Whitespace Control Statements
- 4. Python is pre-installed on most Unix systems, including Linux and MAC OS X The pre-installed version may not be the most recent one (2.6.2 and 3.1.1 as of Sept 09) Download from http://python.org/download/ Python provides two options IDLE Command Line Interpreter
- 12. Indentation matters to code meaning ◦ Block structure indicated by indentation First assignment to a variable creates it ◦ Variable types don’t need to be declared. ◦ Python figures out the variable types on its own. Assignment operator is = and comparison operator is ==
- 13. For numbers + , - , * , / , % are as expected ◦ Special use of + for string concatenation Logical operators are words (and, or, not) not symbols The basic printing command is print
- 14. You can assign values to multiple variable at the same time >>> x, y = 2, 3 >>> x 2 >>> y 3 This makes it easy to swap values >>> x, y = y, x Assignments can be chained >>> a = b = x = 2
- 15. The main statement used for selecting from alternative actions based on test results It’s the primary selection tool in Python and represents the Logic process
- 16. Simple If statement It takes the form of an if test if <test>: <statement>
- 17. Simple If statement if 4>3: print (“it is true that 4>3”) if a==1: print (“true” ) a=10 if a==10: print (“a=10”)
- 18. If Statement “login” example password=‘coolguru ‘ If password== input(“Enter your password :”): print(“You have logged in” )
- 19. If... else statement It takes the form of an if test, and ends with an optional else block if <test>: <statement1> else: <statement2>
- 20. If Statement “login” example password=‘coolguru ‘ If password== input(“Enter your password :”): print(“You have logged in” ) else: print(“ invalid password “)
- 21. If… else if … else statement It takes the form of an if test, followed by one or more optional elif tests, and ends with an optional else block if <test1>: <statement1> elif <test2>: <statement2> else: <statement3>
- 22. If… else if … else statement example number = 23 guess = int(input('Enter an integer : ')) if guess == number: print ( 'Congratulations, you guessed it.‘) print ("(but you do not win any prizes!)“) elif guess < number: print ('No, it is a little higher than that' ) else: print ('No, it is a little lower than that‘)
- 23. Console applications Enterprise applications Web applications Mobile applications Office applications
- 24. Used for Scripting. Developing games. Graphics and Animation Google search engine & Youtube Yahoo maps Financial applications