Notes, summaries, assignments, exams, and problems for Primary education

Subjective Refraction

• Long Range: Strong Convex (+) – Investigator sees 1.0
• Short Range: Weak Concave (-) – Examine sees 1.0

Formal Vision

• Yellow spots

Color

• Reign of the macula!

Fluid Pathways

• Pathway $\rightarrow$ All

Blepharitis

• Definition: (A)
• Forms: (A)
• Causes: A/C/D
• Treatment (Tx): (C)

Answer Summary

• Provide neurepithelium in bloodstream to retina!
• Central retinal artery $\rightarrow$ (2+3)
• Blepharitis Causes $\rightarrow$ A/C/D
• Hypopyon $\rightarrow$ Pus in Anterior chamber
• Glaucoma Scotoma $\rightarrow$ All
• Hypertrophic Eye $\rightarrow$ Convex Lens!

Category A:

• Peripheral vision & Dark adaptation
• Thickest part of retina (0.4mm)
• Eye
• Blepharitis forms!
• Eye envelope!
• Orthophoria!
• Heterophoria!
• Cause for optic nerve Edema
• Binocular vision
• Subjective refraction

Chapter 6 Review: Bond Valuation Problems

1. Coupon Rate Calculation

   A $1,000 face value bond is currently quoted at 100.8. The bond pays semiannual payments of $22.50 each and matures in six years. What is the coupon rate?

   Coupon rate = ($22.50 × 2) / $1,000 = 0.0450, or 4.50 percent

2. Current Price of a Bond

   A $1,000 face value bond currently has a yield to maturity of 8.22 percent. The bond matures in five years and pays interest semiannually. The coupon rate is 7.5 percent. What is the current price of this bond?

   FV = 1000; PMT = 75/2 = 37.5; N = 5 x 2 = 10; I/Y = 8.22 / 2 = 4.11 => PV = 970.96

3. Determining Coupon Rate

   A six-year, semiannual coupon bond is selling for $991.38. The bond has a face value of $1,000 and a yield to maturity of 9.19

1) A wave has the form

When x = 0, the wavelength is

By applying continuity conditions at x = 0, find the amplitude A_x>0 (in terms of A) and phase Φ of the wave in the region x > 0. Use any variable or symbol stated above as necessary.

2) An electron is trapped in an infinite well of width L = 1.87nm. What are the three longest wavelengths permitted for the electron's de Broglie waves?

The wave function must be zero everywhere the potential is infinite. So the wave function is zero outside the well. Since the wave function must be continuous, the wave function inside the well must go to zero at the edges of the well. Thus, only certain discrete wavelengths are allowed.

3) A particle is described by the wave function ψ(x) = b(a² - x²) for

Wave Optics and Interference

1. Double Slit Experiment Maxima

A double slit experiment is performed with sodium light (λ = 589.0 nm). The slits are separated by 1.14 mm and the screen is 2.336 m from the slits. Find the separation between adjacent maxima on the screen.

Photons and the Photoelectric Effect

2. Photon Energy and Wavelength

What is the wavelength of an X-ray photon of energy 10.9 keV? What is the wavelength of a gamma ray photon of energy 1.19 MeV? What is the range of energies of photons of visible light with wavelengths 350 nm to 700 nm?

3. Zinc Surface Cutoff Wavelength

What is the cutoff wavelength for the photoelectric effect using a zinc surface?

4. Stopping Potential Calculations

A metal surface has a photoelectric cutoff wavelength... Continue reading "Quantum Physics and Wave Optics Problem Set" »

1. Information System Definition and Functions

An information system is an organized system for the collection, organization, storage, and communication of information. It is the study of networks that people and organizations use to collect, filter, process, create, and distribute data. Essentially, it's a group of components that interact to produce information.

Objectives:

• Efficient management of data and information
• Improvement of business processes
• Creation of value

The main functions are:

• Capturing internal and external data
• Data processing
• Distributing information to users

2. Centralized vs. Distributed Information Systems

Centralized Systems

In a centralized system, all calculations are done on one particular computer.

Distributed Systems

In a distributed... Continue reading "Understanding Information Systems and Network Topologies" »

Social Reformers of the Victorian Era

Robert Owen (a factory owner in Scotland) gave his workers shorter working hours and provided good housing nearby and education for the workers' children.

William Booth started a new religious movement through the most depressed areas of the city. It was called "The Salvation Army" to "make war" on poverty.

Victorian Literature and Painting

Both were affected by this new mood of change. Charles Dickens, the most outstanding writer from the Victorian era, attacked rich people for their cruelty towards the weak in society. Landowners bought paintings and paid artists; so, to please them, artists painted sentimental scenes of the countryside which told a moral story.

Scientific Advances and the Theory of Evolution

Charles

The American Revolution (1775-1783)

Origins of the War

The American Revolutionary War, also known as the American War of Independence, was fought between Great Britain and the thirteen American colonies, which ultimately founded the United States of America. The war stemmed from the resistance of many Americans to taxes imposed by the British Parliament, which they deemed illegal.

The Boston Tea Party

A pivotal event in the escalating tensions was the Boston Tea Party, a political protest that took place in Boston on December 16, 1773. Rebels disguised as American Indians boarded ships carrying tea and destroyed an entire shipment sent in defiance of the Tea Act of 1773. They threw the tea into Boston Harbor, ruining it. The British government... Continue reading "The American Revolution (1775-1783): A History" »

The Parliamentary Monarchy in England

The King's power in England had been limited by the Parliament since the Middle Ages. The English Parliament was bicameral, made up of two houses:

• The House of Lords: Composed of the clergy and nobles.
• The House of Commons: Representing the cities and the bourgeoisie.

The 17th Century English Revolutions

The first Stuart kings attempted to impose an absolute monarchy in England. This ambition led to significant conflict.

The English Civil War and the Republic

Charles I imprisoned and executed his Parliament opponents, which led directly to a civil war. Charles I and his supporters were defeated, and the king was executed in 1649. A Republic, led by Oliver Cromwell, was subsequently proclaimed.

Restoration and the

The Decline of the Hispanic Monarchy

Felipe III had the largest empire in the 17th century. He disliked ruling the country, so he delegated his authority to a valido, which was a kind of prime minister that depended on the king's favor. He faced several problems, but he was able to maintain its extension due to his pacifist policies:

• He signed a peace with England with the Treaty of London (1604).
• The Twelve Years' Truce with the Netherlands from 1609 to 1621 maintained peace, although it was an indirect way of recognizing the Northern Provinces' independence as the truce was not able to be renewed and then at the Thirty Years' War it was confirmed in the Treaty of Westphalia.
• Peace with France was signed in 1598.

During his reign, the Moriscos... Continue reading "The Decline of the Hispanic Monarchy in the 17th Century" »

I. Listening Comprehension (15 points)

1. What does Susan have to do on Saturday morning? Clean the house
2. Where does Susan have to go at 12:30? To the dentist
3. What time is Susan meeting with Julie? At 2:00 p.m.
4. What will Susan do after she cooks dinner? Clean the dishes
5. Why can't they watch a video at Susan's house? The TV isn't working.

II. Vocabulary Assessment (10 points)

A. True or False Statements

1. Many board games are played with a pair of dice, six-sided numbered objects. TRUE
2. A comb is a tool used by mechanics to tighten or loosen nuts. FALSE
3. A carry-on bag is usually picked up at the baggage claim in airports. FALSE
4. People in a crowd are those who usually converge at a place for an event. TRUE
5. If you bet some money on a team to win a game, it could