Author: admin

Review “Multiple Regression Models Case Study: Web Video on Demand” (Attached Link) for this topic’s case study, predicting advertising sales for an

Internet video-on-demand streaming service.

1.) Submit a copy of the Excel spreadsheet file you used to design your regression model and to determine statistical significance.

*******Note: Students should use Excel’s regression option to perform the regression. Apply all Excel file calculation and explanations. Cells

should contain the formulas (i.e., if a formula was used to calculate the entry in that cell). Use the “Multiple Regression Dataset” Excel resource

to complete this assignment.*******

2.) After developing both Regression Model A and Regression Model B, prepare a 250-500-word executive summary of your findings on a word document.

Please explain your approach and evaluate the outcomes of your regression models.

Advertising Sales ($) Average # of Viewers (Millions) Length of Program (Minutes) Average Viewer Age (years)
28,000 10.1 30 30
25,500 11.4 30 25
31,000 19.9 60 30
29,000 13.6 60 38
20,500 12.5 60 20
14,500 3.5 30 15
27,000 15.1 60 24
23,500 3.7 30 17
19,500 4.3 30 19
23,000 12.2 120 45
18,000 5.1 120 19
29,500 15.9 60 28
30,000 16.8 120 31
25,000 8.5 120 58
22,500 9.1 30 43

Multiple Regression Models Case Study: Web Video on Demand
Web Video on Demand (WVOD) is an Internet video-on-demand streaming service. The company offers a subscription service for $5.99/month, which

includes access to all programming and 30-second commercial intervals.
In the last year, the company has recently begun producing its own programming, including 30-, 60-, and 120-minute television shows, specials, and

films. Programming has been developed for teen audiences as well as adults.
The following data represent the amount of money brought in through advertising sales, the average number of viewers, length of the program, and the

average viewer age per program.

Advertising Sales
($) Average # of Viewers
(Millions) Length of Program (Minutes) Average Viewer Age
(Years)
28,000 10.1 30 30
25,500 11.4 30 25
31,000 19.9 60 30
29,000 13.6 60 38
20,500 12.5 60 20
14,500 3.5 30 15
27,000 15.1 60 24
23,500 3.7 30 17
19,500 4.3 30 19
23,000 12.2 120 45
18,000 5.1 120 19
29,500 15.9 60 28
30,000 16.8 120 31
25,000 8.5 120 58
22,500 9.1 30 43

The WVOD executives are in the process of evaluating a partnership with several independent filmmakers to fund and distribute socially conscious and

diverse programming. The executives have asked for regression models to be developed based on specific needs. The three regression model requests

and programming details are included below.
The WVOD executives would like to see a regression model that predicts the amount of advertising sales based on the number of viewers and the length

of the program. Develop this regression model (“Regression Model A”). Web Video on Demandwould like to acquire a 60-minute documentary special about

social media and bullying. The special is aimed at teen viewers and is estimated to bring in 3.2 million viewers. Based on the regression model,

predict the advertising sales that could be generated by the special.
The WVOD executives would alsolike to see a regression model that predicts the amount of advertising sales based on the number of viewers, the

length of the program, and the average viewer age. Develop this regression model (“Regression Model B”). Web Video on Demandmay acquire a 2-hour

film that was a hit with critics and audiences at several international film festivals. Initial customer surveys indicate that the film could bring

in 14.1 viewers and the average viewer age would be 32. Use this information to predict the advertising sales.

Images with “Thin” Lenses
Updated 2/2017 jmh, rc

Materials

1 each PASCO Basic Optics Light Source
2 each lenses: one with a negative focal length, the other with a positive 200 mm focal length
1 each empty lens holder
1 each optical track (optical bench)
1 each optical target screen
1 each metric ruler

Goals

1) To understand the nature of image formation from thin lenses.

2) To learn experimental techniques for determining the focal lengths of positive (converging/convex) and negative (diverging/concave) lenses in conjunction with the thin-lens equation.

3) To learn how to make a scale “ray diagram” for a combination of a positive and negative lens using three principle rays for each lens and interpret it.

4) To understand the specific meaning of the term, “magnification,” as applied to optical systems and to determine its value by three methods: a) direct measurement, b) calculation using the thin lens equation, and c) using the ray diagram.

Introduction

Definitions

Object distance do: This is the distance from a lens to the object being viewed. This distance is always positive except in rare cases involving more than one lens. In this lab we will only ever deal with positive object distances.

Image distance di: This is the distance from a lens to the image it has formed. This distance is considered positive if it is on the opposite side of the lens from the object. It is considered negative if the image is on the same side of the lens as the object.

For any simple focusing element it can be shown that

(1/do + 1/di) = 1/f

where do and di are the object and image distances respectively and f is the focal length of the element. This is called the thin-lens equation.

Figure 1: Ray diagram illustrating principal rays.

The Apparatus

An optical bench with a metric length scale attached to it, two lenses and holders, a light source light source, and a viewing screen are provided. Use the end of the light source with the crossed arrows as the object to be imaged. Please do not touch the glass lenses.

Exercise 1: Qualitative Investigation of Image Formation

Understanding image formation:

Predict what will happen to a real image formed by a converging (convex) lens when you cover up the top half of the lens. Record these predictions and have your instructor initial them before continuing. Predictions that have not been initialed will not be graded. Neither will the accompanying explanations. Predictions will not be initialed after you have set up your lens and light source.
Place the 200mm focal length converging (convex) lens on the optical track, near the center. Place the light source at one end of the track and the viewing screen at the other. Adjust the lens and screen locations until you can see a real image in focus on the viewing screen. Cover up the top half of the lens and observe any changes that take place in the image as the lens becomes blocked. Explain this in your report.

Determining the Focal Length of a Positive (converging/convex) Lens

We will be using the optical bench with the light source and the viewing screen to determine the focal lengths of the two lenses provided, one positive (converging/convex) and one negative (diverging/concave). You should be able to tell which is which by looking at the cross-sections.
For now you will be determining the focal length of the (nominally 200 mm) positive lens. This can be done experimentally by finding pairs (find several quite different values) of object and image distances that give clear real images (a “real” image can be projected on a screen) of the light source on the viewing screen. Determine your uncertainty in image distance by shifting the lens until the image blurs noticeably. Then use the thin lens equation to calculate the focal length. Repeat this five times using significantly different values of do and di (you may assume the same uncertainty for each measurement). Find the mean value of the focal length and compute its standard deviation. Does your value for focal length (with uncertainties) match with the actual focal length found printed on the lens holder?

Locating Virtual Images by Parallax:

You can determine the relative distance of different objects using a simple technique called parallax. Pick a distant object (maybe a fire extinguisher, or a chair across the room.) Hold up a pencil or calculator as a nearby reference object. Cover one eye and observe both objects while moving your head back and forth slightly. (If anyone makes fun of you, tell them it is for science, and immediately report them to your instructor.) The object which moves further across your field of view must be closer to you. As an extreme example, this is why the moon seems to hang in a single spot in the sky even as you drive all the way across town.
Remove the screen and bring the +200mm focal length lens to the end of the track at 0 cm. Make a simple object by taping a string vertically across the empty lens holder. Place the lens holder so that the string is 15 cm from the lens. This should cause the lens to act as a magnifying glass, forming a magnified virtual image behind the lens.
You can use the parallax technique to (roughly) locate the virtual image formed by your “magnifying glass”. View the image through the lens with one eye covered. Have a partner hold a tall reference object (a meter stick works well) at different locations directly behind the lens (adjust this position in 5 cm increments). When moving your head back and forth causes the magnified string image to move in synch with the meter stick, you will know they are both the same distance away. Determine the image distance uncertainty by determining how far the ruler can move without you noticing the loss of parallax alignment with the image. Note: It is important that you watch the meter stick move outside the lens while watching the image move inside the lens. You may be able to see the meter stick through the lens as well, but you want to reference the real meter stick and its actual distance from your eye.
Measure the (negative) image distance for one object distance with this set up, and compare it to the one you can predict using the thin lens equation. Make sure to include your measurement uncertainties as discussed in lab based on the range of distances where the parallax motion appears to align.

Exercise 2: Determining the Focal Length of a Negative Lens

Set the light source, concave lens, and screen on the track. Can you produce an image on the screen with the concave lens using this setup?
Using both lenses (place the negative lens nearest the light source) again find locations of the lenses and screen that result in a clear image. Note that the image should be large enough on the screen to tell if the image in focus. Place the light source at xo = 0.0 cm. Record the positions of the concave lens (x-), convex lens (x+), and screen (xs) for each of the five trials. At each measurement, also record the diameter of the real image circle (yi) projected on the screen. This will be used to test the magnification equation in Exercise 4. The object circle has a diameter of yo = 4.00 cm.
With this configuration we only can measure the object distance of the negative lens, and the image distance of the positive lens. See Figure 2.

Figure 2: Sample ray diagram illustrating image formation by a combination of negative and positive lenses.

Knowing the focal length of the positive lens from Exercise 2, the thin lens equation can be used to find the object location for only that lens. In this case, the object for the positive lens is the image, created by the negative lens. Once you have found this point on your optical bench/track, you can measure from there to the negative lens, to find the image distance for the negative lens.
You will now have both the object distance (measured from lamp) and image distance (measured from calculated location of positive image object). Apply the thin lens equation again to find the focal length of the negative lens. Note that the sign conventions used demand that the focal length for a diverging lens is designated as a negative number. Repeat this process for five significantly different locations of the lenses and viewing screen. Create an Excel file to do these calculations. Have your instructor check your calculations. You must show one sample calculation in your report.Calculate the mean focal length and the corresponding standard deviation and compare to the actual focal length found on the lens holder.

Exercise 3: A Ray Diagram (Complete at home):

Pick one configuration of lenses and viewing screen distance from Exercise 2. Choose a configuration where the calculated value for the negative lens is closest to the nominal value (typically -150 mm). Draw a complete ray diagram to scale (not 1:1, make it fit on one sheet of paper) showing the formation of the intermediate image from the negative lens and the final image of the positive lens. Use the experimentally determined focal lengths for the lenses from the configuration you are using to create the ray diagram. Use different horizontal and vertical scales to exaggerate the object height relative to the length of the optical track. Utilize a straight edge to draw ray paths. Assume ray paths bend only at the center of each lens. Trace the rays for the lens closest to the light source first; then use the resulting image as the object for the second lens. How well does your ray diagram predict the correct location for the final image? Compare to your experimental value from Ex. 2.

Exercise 4: Magnification (Can be completed at home if all data was collected in Ex.2)

The magnification (m) is defined as the ratio of the image size (yi) to the size of the object (yo) being imaged (m = yi/yo). When the image is upside down, the magnification is negative. If the image is upright, that is the same orientation as the object, the magnification is positive. From the ray diagram for either a positive or negative lens the magnification (sometimes called the transverse magnification), m, can be shown to be equal to m =  di/do. For the two-lens system, the virtual image of the negative lens has magnification m- =  di-/do-and this virtual image is magnified by the positive lens m+ =  di+/do+, so the total magnification is m- m+ = (di-/do-)( di+/do+).
For the same configuration used in Exercise 3, calculate the magnification of the two-lens combination as shown on the viewing screen (m = yi/yo), and compare this value to that calculated with the aid of the thin-lens equation: (m- m+ = (di-/do-)(di+/do+)). You should also be able to determine the magnification directly from your ray diagram in Exercise 3 using the equation (m = yi/yo). Compare the three magnifications you calculated in this exercise using % Differences.

Before you leave the lab
Straighten up your lab station.
Report any problems or suggest improvements to your lab instructor.

Instructions
Financial Accounting
Reading (Required)
• http://www.baruch.cuny.edu/tutorials/statements/
• The attached file 2016 week 2 Example Southwest Airlines
• The Power Point (Financial Statements R-2.ppt) should be very helpful
The Southwest example is included to show what can be learned from Financial statements. You will not use that format for your answers to this

assignment. Per the assignment guidelines, all calculations must be shown in an Excel file. Your responses should show that you have read and

understood the required readings, links and attached files – Provide appropriate citations and references.
Assignment:
You should answer all of the questions listed below as they relate to the financial statements of any U.S. public company of your choice in its

latest annual report. Please use the Securities and Exchange Commission web site as your primary source for financial statements. All publicly

traded U S companies have their annual reports called the 10-K available through the Securities and Exchange Commission web site.

http://www.sec.gov/

Instructions for use of the site are as follows: About half way down the home page is a box titled Search EDGAR, free access to over 21

million filings. Enter the company name or ticker symbol. That brings up a page called EDGAR Search Results. In the line “filter results”

enter “10-K” in filing type and hit search. That will bring up recent company annual reports. Note: You have a choice of “Documents” or

“Interactive Data.” Both contain all the information. “Interactive Data” uses Excel and provides the best access to information for questions

1, 2, and 3. “Documents” provides information that is easy to read for questions 4 through 8. After you click on Documents, click on the red

letters and numbers to the right of the “10-K” heading.
Also you can find the financial statements of any U.S. public company by visiting Morningstar, Yahoo Finance or MSN Money, and using the stock

market symbol for your chosen company (which can be looked up on Morningstar, Yahoo Finance or MSN Money). Please be aware that sometimes

these services omit some numbers in order to fit their preferred formats. Many companies have links to the Annual Report as filed with the SEC.

It can be found on the Investor relations page of the company web site.
1) What 3 items of important information does the income statement reveal about the financial performance of the company over the last three

years?

2) What 3 items of important information does the balance sheet reveal about the financial position of the company over the last two years?
3) Can you identify the major sources of funding used by the company from the information presented in the company’s annual report? Please

look at the Statement of Cash Flows, formerly called the Source and Uses of Funds Statement.

4) Who is responsible for:
a) the issuance, and
b) the content
of the company financial statements? (Note: this information may be difficult to find. Look for statements by management and the independent

auditing firm.)
5) What assurance, if any, is there that the financial statements are in compliance with GAAP, and are free of material misstatements?
6) Of what use, if any, are the notes to the financial statements? Give an example of something learned from the footnotes of your company.
7) What can you learn from the Business Section of the 10-K? Give two facts learn from reading this section.
8) What can you learn from the Management Discussion and Analysis of Financial Condition and Results of Operations (MD&A)? Give two facts

learned from reading this section.
*************Quantitative analysis tied to the financial statement concepts will add value to your work.

HERE ARE Six DISCUSSIONSAN QUESTIONS. 50 WORDS EACH.
#1
What are the major patterns of food production and distribution? Discuss the costs and benefits of these practices. How are agricultural practices associated with soil, water, and wildlife sustainability?

#2 What are the benefits and problems of using pesticides to control agricultural pests?

#3 Discussion on tree harvesting method chapter 13 This is under learning activities required.

#4 Discussion on Land Resources chapter 13 This is under learning Activities required.

#5 Click on classroom, click on week 5 scroll down to Learning activity required, click on Electronic reserve reading and discuss
Coal and the Environment.

#6 Under the same Electronic Reserve reading, discuss Mining with minimal impact.

. Write a blog post of 1 A4 that provides an answer to one of the questions asked about the article of your choosing.
In the module EMG-Casuistiek – EBC4 current articles on topics that have to do with management, innovation, and organizations are discussed. During the lessons, three articles are discussed. The student should be able to understand and discuss each article. In the course of the blok each student is required to:

1. Submit 1 A4 blog, which Thoroughly answering 1 of the Blog Post Questions belonging to the article the Student chooses to work with.

Finalassignment

1. Blog:

Chose one of the articles that is discussed in class to work with. Write a blog post of 1 A4 that provides an answer to one of the questions asked about the article of your choosing.

Criteria:
– You need to provide a well-structured opinion on the matters discussed
– You need to make sure that the theory of the article is referred to in the blog post.
– You need to make sure that the blog post is grammatically sound.
– You have to show knowledge of appropriate blogging conventions and language
– Your blog must show knowledge of writing techniques and be interesting enough to evoke a potential response.
–
You can choose form the following questions:
– 1. What, in your own opinion is the upside & downside to having a superboss?
– 2. Identify a superboss who appeals to you & explain why.
– 3. Apply the “superboss” theme to your own life/cultural context past/present/future.

Blog tutorial 1: Writing good titles

Writing a good title in 5 steps:
1. Create a working title
2. Stay accurate
3. Make it sexy
4. Keep it short
5. Check before you continue..

Grading rubric example

EBC 4 BLOG

TESTING LEVEL B2 TITLE & TECHNIQUES
EFFECTIVE FORMAT & STRUCTURE
LANGUAGE, SPELLING & GRAMMAR USE OF ARTICLE CONTENT
AUTHENTIC, INTERESTING, APPROPRIATE, ETC SCORES
1-10
(50 MAX) TOTAL
EXCELLENT
MASTERFUL

GOOD
SKILLFUL
SATISFACTORY
APPROPRIATE

MINIMUM
ATTEMPT MADE

INADEQUATE

NAME / NUMBER
CLASS
HBR ARTICLE

 

Business Studies

Primary Task Response: lMthin the Discussion Board area, write 400-600 words that respond to the following questions with your thoughts, ideas, and comments. This will
be the foundation for future discussions by your classmates. Be substantive and clear. and use examples to reinforce your ideas:
Dispute settlement is the focus of the World Trade Organization (WTO) and the way that the organization keeps the global economy stable.
0 What is the WTO. and what is its history?
0 What are the benefits of being a member of the WTO?
o What are the disadvantages?
o How does it settle disputes?
Choose a recent dispute between 2 countries, and discuss it with your peers. Include the following: 1
0 Summary of what happened
o How it was resolved
0 Role played by the WTO
0 Do you agree with the resolution?
Responses to Other Students: Respond to at least 2 of your fellow classmates with at least a 100-word reply about their Primary Task Response regarding items you found
to be compelling and enlightening. To help you with your discussion, please consider the following questions:
0 What stands out in terms of the various disputes addressed?
0 Do you see any ways noted/ hinted at that the WTO could do better or have more support toward its efforts?
0 What clarification do you need regarding the posting?
o What differences or similarities do you see between your posting and other classmates’ postings?
For assistance with your assignment, please use your text, Web resources, and all course materials.
Reading Assignment
Editorial Board Chapter: 5, review chapter 2
Click on the following link and access the tab title that aligns to the unit title:
httgzllcareered.Iibguides.comlctu/MGM355
Assignment Objectives
0 Discuss current management practices and principles used in the current global business environment.
0 Summarize the opportunities and risks of doing business in foreign countries.
0 Compare alternative organizational structures for international operations.
0 Discuss strategies organizations can pursue for international market expansion.
0 Use effective communication techniques.
i Other Information
There is no additional information to display at this time.

 

 

In his discussion of the centuries-long uproar about the doctrine of Incarnation, Smith explains the problem as being the conundrum of having to preserve both the full Divinity and the full Humanity of Christ. Why was each side of that god/man conjunction too important to discard?
Has to be between: 500-600 Words
Book:The End of Faith
Author: Sam Harris
ISBN: 0393327655
Publisher: W. W. Norton (2005)

Alina Baraz and Coldplay Concert
To complete the assignment you should:

Attend a musical performance featuring a minimum of two (2) musicians. Performances in lecture do not count. You can choose any style of music and

the performance can also include theater, dance, or other content. Make sure, however, that music is central to the performance.

Describe in detail the musical and broader aesthetics of the performance (suggestions below). Based on your observations and our class discussions,

analyze the performance and offer your interpretations of its pertinent social, cultural, or political meanings.

Make sure the paper is typed, double-spaced, with 1” margins, and in a reasonable 12-point font such as Times New Roman. Do not exceed three pages

or adjust margins to accommodate going over the page limit.

Make sure your paper is well organized, written in clear, concise language, and free of spelling and grammatical errors.

Make sure your paper contains proper citations for outside resources, including notes from lectures. Please see your GSI if you have questions about

citations.
Guiding themes and suggestions:

The objective of this assignment is to encourage you to think analytically about the music, experience of the performers and audience members, and

the larger aesthetic, social, or political context of the performance. Your reading, listening, and class work should inform your observations. Do

not simply guess at what you are hearing. Back up your points with evidence from the performance and/or secondary sources from the class or outside

resources.

As you write, think about how to convey these various elements of the performance to someone who was not there. In particular, help them to

understand why this performance was important.

Take notes during the performance rather than reconstruct it in following days (taking into account, of course, the etiquette of the performance and

being respectful of the performers). You will need to incorporate specific observations into your report, not just general impressions. Write as

much as you can immediately after the performance.

Below, you will find a list of elements to consider when observing the performance and analyzing it in your report.
Different performances will be interesting for different reasons. Observe and write about as many of the following aspects as you can or are

applicable to your event:

Context

Describe the physical and social environment of the performance. Is it indoors or outdoors? How do the performers and audience fill and use the

space? Is this a place devoted solely to performance? If it is built to serve other purposes as well, how does that affect the performance? How

would you classify the overall “feel” of the space: luxurious, utilitarian, seedy?

Purpose

What are the intended purposes of the performance? For example: community outreach, cultural education, dancing, listening enjoyment, political

protest, socializing, or religious worship. Why are people (musicians and audience) there? Are the musicians performing for pay, for practice, to

show off their skill? A student ensemble performing in Sproul Plaza, for instance, differs greatly from a professional band in a club. Did the

audience come specifically to this event or is it a street performance where people wander by?

Socio-cultural background of the music, the musicians, and the audience

To the best of your ability, give some sense of who the performers and audience are (age, gender, race, socioeconomic status, etc.). With what sort

of people is this kind of music most commonly associated? And if you don’t know, ask somebody there!

Audience behavior

How did the audience appear to experience the event? Note any interaction between the musicians and the audience, when people seem most interested

or affected by the performance.

Musical sound

How would you describe the music, its sound, and its style? You may find that it is interesting to focus on a few songs/pieces or aspects of the

performance rather than recounting the entire event. What instruments are played and how do they contribute to the music? Perhaps draw a diagram

that shows the layout of the performance space and the various performers and their instruments.

Interaction between performers

What does each musician contribute? Who is the leader? How do they communicate? If there is dance, how does the dancer interact with the musician/s?

Does the dancer also make music?

The effect of the performance on you personally

Write about your interests, your previous knowledge and experience of this kind of music, your interpretations, your questions, what you did and

didn’t like.

Be sure to include the following information:

Names of performers or group

Location, date, time, and length of the performance

Type of event — concert, church service, dance, fund-raiser, etc. — and admission price

Directions: Apply the concepts that are inherent in systems theories to case scenario (#1)and those basic to the ecological perspective to the other

scenario (#2). “Critique and apply knowledge [about these theories] to understand person and environment.” Submit in the appropriate portal.
Note: You will not be able to complete this assignment properly without reading the assigned material. You must be thorough in your explanation in

identifying

Scenario #1: A social worker employed by a neighborhood center determines that the range of workers and other professionals working with various

adolescent clients within the community are not communicating with each other. For example, school social workers have no established procedure for

conveying information to protective services workers who, in turn, do not communicate readily with probation and parole workers. This is despite

the fact that most of these professionals are working with many of the same clients. The neighborhood center social worker decides to pull together

representatives from the various involved agencies and establish more clearly defined communication channels.
How can concepts inherent in systems theories be used to describe what’s happening in this scenario? Identify which concepts apply and how.Concepts

include: system; boundaries; subsystem; homeostasis; roles; relationships; input; output; negative and positive feedback; interface;

differentiation; entropy; negative entropy; and equifinality.

Scenario #2: A juvenile probation officer is distressed by a proposed legislative action to delete a vocational training program for juvenile

offenders because of its expense. He talks to other workers and administrators in his state agency, and gathers facts and statistics that support

the program’s cost effectiveness. He then begins calling and writing involved legislators and sets up a meeting with the chairperson of the

legislative committee that recommended the program’s deletion. Additionally, he contacts other concerned social workers and encourages them to

participate in similar activities.
How can concepts inherent in the ecological perspective be used to describe what’s happening in this scenario? Identify which concepts

apply and how.Concepts include: the social environment; energy; input; output; interface; adaptation; person-in-environment fit; stress, stressors,

and coping; relatedness; habitat; niche; competence; self-esteem; and self-direction.

 

For one of the numbered assignments listed below or otherwise approved in advance by your instructor, and guided by the rubric shown here, research,

write and post through Turnitin™, a 10-12 page (including cover page & references) double-spaced research paper in APA format. Identify current issues,

regulations and practices & address related legal considerations on your chosen topic, using proper legal terminology throughout. You must cite at

least 5 references, one of which can be our textbook, if applicable. If you propose an alternative topic for approval by your instructor, your outline

must show that your approach will relate that topic to at least 4 of the course Learning Outcomes listed in the Course Syllabus and that it will

require the same level of inquiry and legal analysis as these.

Airports
1. Select a specific civil airport located anywhere in the world and serving commercial airlines, then:
a. Describe briefly the airport and its owner/operator, airlines serving the airport, and the city, cities or region served by the airport.
b. Identify the governmental agency or authority or private enterprise responsible for providing security screening of passengers and cargo at the

airport.
c. Identify government legal actions taken there to:
i. protect the surrounding airspace from obstruction by obstacles,
ii. assure that land uses surrounding the airport are compatible with aircraft noise,
iii. establish runway use preferences, approach & departure paths to minimize aircraft noise impact on surrounding communities.
d. Identify the specific government agency or authority that took each such action.
e. Identify the source and type of government legal powers relied on to accomplish each of these actions.
f. Include images illustrating the airport and vicinity relating to those specific actions.
g. Identify and briefly describe all airline accidents that have occurred at or in the vicinity of that airport since 1/01/2000, including the probable

cause of each.
h. Identify current airport noise & safety issues that remain of concern to the community and any current activity to address those issues.
i. Analyze whether the airport’s level of activity and forecast air traffic demand appear sustainable at the present location for the long term,

clearly explaining your reasoning.

This is the abstract that you have already written for me. I would like to keep the same writer.
San Francisco Airport
San Francisco International Airport is an internationally recognized airport located 21 kilometers south of San Francisco, California, USA. It has

flights to Asia, Europe, and North America. The county and city of San Francisco, in San Mateo County, owns and polices the airport. From 1999 – 2004,

the San Francisco Airport Commission contracted city-owned SFO Enterprises Inc., to manage the business purchases as well as venture operations. San

Francisco is the operations base for Virgin America, with services to more than 20 destinations. As an affiliate of the Registered Traveller program

between 2007 and 2009, San Francisco airport allowed passengers that had registered for pre-screening to go past security checkpoints quickly.

Transportation Security Administration contractor- Covenant Aviation Security operates screening of baggage and passengers. The airport has engineered

materials arrestor system (EMAS) on runways 1R-19L and 1L-19R. San Francisco airport was among the pioneer airports that implemented the Fly Quiet

Program, which ranks airlines on performance over procedures of noise abatement when flying out of and in to San Francisco. The Aircraft Noise

Abatement Office launched the program as a way of encouraging airlines to operate quietly at San Francisco. San Francisco airport was among the first

airports in the US to undertake a residential sound abatement retrofitting program. Established by the FAA, the program assessed the cost efficiency of

decreasing levels of interior sound for homes bordering the airport, in the 65 CNEL noise contour. The airport has witnessed 4 accidents in 2007, 2008,

2013, and 2017.