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NATS 1880 Chapter Notes - Chapter 1: Falsifiability, Planetary Science, Atmospheric Sciences

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jadesnail738
18 Sep 2014
School
York University
Department
Natural Science
Course
NATS 1880
Professor
Paul Delaney

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Document Summary

When searching for life we are looking for any sign of life be it simple complex intelligent. Scientific search is new development but extraterrestrial ideas aren"t. There is enough evidence that no civilization has ever existed on any of the other planets. Perhaps simpler life such as tiny microbes microbial ( might exist on other planets moons bacterial. Astronomy biology and planetary science geology and atmospheric science make up this study of et life. Views of the universe used to be geocentric ( almost 400 years ago. In reality earth is just a tiny world orbiting one rather ordinary star in a vast cosmos. By learning how planets form we develop an understanding of how common we might expect planets to be. By learning about our system we learn how other stars might be born with planetary systems. The known extrasolar planets now far outnumber the planets of our own solar system so life is possible.

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Related Questions

Your program will take an arithmetic expression as a String input. For Example:

 

  • “1+2*(3/4)”

 

  • “1+2*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14”

 

  • “1+2*[3*3+{4–5(6(7/8/9)+10)}–11+(12*8)/{13+13}]+14”

 

Program

 

Your program will determine whether the open brackets (the square brackets, curly braces and the parentheses) are closed in the correct order.

 

Outputs:

 

Output 1

 

1+2*(3/4)

This expression is correct.

 

Output 2

 

1+2*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14

This expression is NOT correct.

Error at character # 10. ‘{‘- not closed.

 

Output 3

 

1+2*[3*3+{4–5(6(7/8/9)+10)}–11+(12*8)/{13+13}]+14

This expression is correct.

 

Output 4

 

1+2]*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14

This expression is NOT correct.

Error at character # 4. ‘]‘- not opened.

Task 1

Solve the above problem using an array-based stack.

 

Task 2

Solve the above problem using a linked list-based stack.

In a small study, 12 women with cervical cancer (cancer of the cervix) and 12 women with no apparent cervical cancer were contacted and asked whether they had ever used the hormone estrogen as a drug. Each woman with cancer was matched by age, race, and weight with a woman without the disease. This is an example of:

a) A randomized controlled trial

b)A prospective cohort study

c) A case-control study

d) A retrospective cohort study

12. How many iterations does the following loop have: for (int i = 0; i < 100; i+2) {