Describe the following four types of lists:

1) Master Risks List

2) Risks by Services List

3) Top Risks List

4) Retired Risks List

write a member function in C++ , that takes two lists and return list that contain the merge of the two lists

in the returned list: first insert the first list and then the second list  

Section A: Read and answer ALL questions that follow
Trends of Obesity and Overweight among College Students in Oman
Hashim Al-Kilani; Mostafa Waly; and Randa Yousef
Sultan Qaboos Univ Med J. 2012 Feb; 12(1): 69–76
The prevalence of obesity and overweight among adults has drastically increased during the past
decade. Anthropometric indices such as body mass index (BMI) and total body fat (TBF)
analyses are used widely for assessing the physical well-being of adults. Worldwide, obesity and
sedentary lifestyles have been involved in the etiology of many no communicable diseases
(NCDs) among adults. Recent reports suggested that there was a direct relationship between
adolescent fatness and increased risk of cardiovascular diseases.4,5 Health-related fitness
parameters were more dependent on the anthropometrical parameters in obese than in control
adolescents.5 Cardiovascular disease is the leading cause of mortality among adults, and a
systematic analysis of population health data revealed that, among the nine risk factors of heart
attacks and strokes, six risk factors are modifiable, while three are non-modifiable risk factors;
these include increasing age, male gender and family history of cardiovascular disease
(CVD).6,7 The six modifiable risk factors that are the focus of current research for primary
prevention are 1) increased blood cholesterol; 2) increased blood pressure (hypertension); 3)
cigarette smoking; 4) lack of regular physical exercise; 5) type 2 diabetes, and 6) obesity.
According to the World Health Organization and the American College of Sports Medicine, the
most important risk factors of NCDs in Arab countries are high blood pressure; high blood
cholesterol level; inadequate intake of fruit and vegetables; overweight or obesity; physical
inactivity, and smoking. Five of these risks are closely related to improper diet and physical
inactivity. Primary prevention of NCDs among adolescents can be achieved through early
screening for associated risk factors, and health education on the various risks of obesity and a
sedentary lifestyle. This study was conducted to: 1) determine the body mass index (BMI), TBF
and physical activity score (PAS) of a sample of college aged students and so assess the
prevalence of underweight, overweight and obesity; 2) evaluate the physical activity of all study
participants, and 4) determine the relationship between the study participants’ body composition
(the relative amounts of various components in the body, such as percentage of body fat) and
their general nutritional knowledge.
A cross-sectional survey was conducted on the Sultan Qaboos University (SQU) campus during
the period August 2010 to June 2011. The sample of the study consisted of 202 students (101
male and 101 female) from five colleges at SQU. The sample was selected using purposive
sampling. The inclusion criteria were to be healthy subjects who were free of any endocrine
disorders or any chronic diseases. The research data were collected by means of a questionnaire.
The questionnaire form was composed of two sections: general and anthropometric information,
and nutrition knowledge questions. Ethics committee approval for conducting the study was
obtained from office of the Advisor for Academic Affairs at Sultan Qaboos University.

The study questionnaire was designed to collect sociodemographic data and general nutritional
knowledge as determined by 10 multiple-choice questions, each with three possible answers. The
questionnaire was pre-tested in a pilot study on a sample of 20 students to assure its validity,
reliability and reproducibility before conducting the study. Examples of the questions asked to
assess the nutritional knowledge were: A) what type of dietary fibre is helpful in lowering blood
cholesterol level? B) What are good sources of vitamin B12? C) What are the nutrients that raise
low density lipoprotein (LDL)-cholesterol levels? D) What is the highest source of energy? For
all study participants, the study questionnaire was completed during a personal interview with
one of the researchers.
This study included 202 students (101 male and 101 female) from five colleges at Sultan Qaboos
University whose mean age was 21.22±1.37 years. The mean percentage scores of enrolled
students in nutrition knowledge were 56.46±13.50; ranging from a minimum of 25% to a
maximum of 85%. All students reported exercising weekly; 38.61% reported exercising 4 to 6
hours a week, and 30.69% reported exercising 7 to 9 hours a week. The PAS of 44.06% of the
students ranged from 7 to 9. Based on BMI, more than two thirds of enrolled students were of
normal weight (69.31%), 26.73% were overweight while obese students constituted only 1.49%
of the sample. In contrast, based on percentage of body fat only, one third was healthy (32.67 %)
with normal body fat scores (BFS), while almost half of them had high (26.73%) or very high
BFS (22.28%).

1. What type of research design was used in this study? (1 Mark)
2. Discuss in detail the best method for measuring reliability for this study? (2Marks)
3. What is the significance of the study? (1 Mark)
4. What type of sampling methods was used in the study? Describe the main steps in
devising it
5. What are the main findings of this study?
6. Formulate two hypotheses within this research topic? (1 Mark)
7. List two previous studies that may use for this research project by using the APA
citation style. Do not ignore preferable type of literature for your selection.

Problem 4 – Fun with Vacuum Physics

To do surface physics, we need to put the entire experiment into an ultra high vacuum so the air does not contaminate the surface. To heat the metal sample, we use an electron gun. A 500 V power supply has the positive lead connected to the metal sample, and the negative connected to a filament that emits electrons. The electrons boil off of the filament at 0 V, and are attracted to the sample at 500 V.

a) What is the kinetic energy in Joules of one electron when it hits the sample?

K = _______________ (This is called 500 eV of energy)

b) How many electrons per second must hit the sample to provide 1 W of heating power?

c)To prepare the sample for the experiment, we need to start by removing the top 5 atomic layers from the sample, since they have been contaminated with molecules from the trace amount of gas in the vacuum. To do this, we ionize helium atoms and then accelerate them using the same device as the electron gun, but switching the positive and negative leads, since the ion is 4He+. Find the kinetic energy, momentum, and velocity of a singly charged helium atom when it has been accelerated through 500 V

K = _______________ p = _______________ v = _______________

d) Since the helium ion is so much bigger than the electron, instead of getting absorbed into the metal and heating it, it collides with the surface, and about 40% of the time it knocks off one atom from the surface. Assuming that the surface of the sample is 2 cm2 in area, the atoms are arranged in a square pattern with a distance of m between nearest neighbors, and it takes 6 minutes to remove the top 5 atomic layers, how many ions per second must be hitting the sample?

= _______________

While this may seem like a big number, it is tiny compared to Avagadro's number, which is important since we will need to pump out of our vacuum chamber every atom of gas that we add!

Thank you.

17. The U.S. Supreme Court’s ruling that student speech that appears in school-sponsored publications can be regulated and censored permissibly as long as the school’s actions are reasonably related to legitimate pedagogical concerns was created in which one of the following cases?

a. Tinker v. Des Moines School District

b. Morse v. Frederick

c. Hazelwood School District v. Kuhlmeier

d. Bethel School District v. Fraser

21.

What statement best describes the response of the nation’s courts to the libel defense neutral reportage?

a.   Nearly all courts have embraced it.

b.   About half of the courts accept it.

c.   Most courts have not adopted it.

d.   No court has yet accepted it.

25.

Under the void for vagueness doctrine, a statute will be declared unconstitutional by a court if

a. there was a disagreement about its meaning among the legislators who adopted it.

b. it regulates a substantial amount of protected speech along with speech that is unprotected by the First Amendment.

c. a person of reasonable and ordinary intelligence would not be able to tell, from looking at its terms, what speech is allowed and what speech is prohibited.

d. a judge of reasonable competence and legal training would not be able to tell, from looking at its terms, what speech is allowed and what speech is prohibited.

29.

Criminal libel suits are

a.   barred by the First Amendment.

b.   a problem for publishers in some regions of the United States.

c.   more commonly filed today than 25 years ago.

d.   more common than civil libel suits.

37.

Which of the following was not a reason the Supreme Court used as a rationale in the New York Times v. Sullivan case?

a. A ruling for Sullivan would imperil the civil rights movement.

b. The case was really a seditious libel action.

c. The nation has a long-standing commitment to free and robust debate.

d. Public officials must expect criticism.

Assume that a singly linked list is implemented with a header node, but no tail node, and that it maintains only a pointer to the header node. Write a class in C++ that includes methods to
a. return the size of the linked list
b. print the linked list
c. test if a value x is contained in the linked list
d. add a value x if it is not already contained in the linked list
e. remove a value x if it is contained in the linked list

Assume that a singly linked list is implemented with a header node, but no tail node, and that it maintains only a pointer to the header node. Write a class that includes methods to
a. return the size of the linked list
b. print the linked list
c. test if a value x is contained in the linked list
d. add a value x if it is not already contained in the linked list
e. remove a value x if it is contained in the linked list

Question 5
Write a program to find the number of comparisons using binarySearch and the sequential search algorithm as follows:
Suppose list is an array of 1000 elements.
5.1 Use a random number generator to fill list.
5.2 Use any sorting algorithm to sort list.
5.3 Search list for some items as follows:
a. Use the binary search algorithm to search the list. (You may need to modify the algorithm given in this chapter to count the number of comparisons.)
b. Use the binary search algorithm to search the list, switching to a sequentialsearch when the size of the search list reduces to less than 15. (Use the sequential search algorithm for a sorted list.)
Print the number of comparisons for Questions 5.3a and b. If the item is found in the list, then print its position.

Write a script that checks each minute and reports on who logs in and who logs out.

You can follow the steps below (not the only way):

1. Using the commands who and cut, extract the list of usernames currently logged in the system
2. To check after a minute, the sleep command can be used: sleep 60
3. Get the new list of users logged in after a minute
4. For each user in the list;
   1. check if they are in the second list using if and grep. You can dump the output of grep to /dev/null when using it in the as a test for the if statement
   2. If the user is not in the second list, print that the user has logged out
5. For each user in the second list,
   1. If he is in the first list, print that the user has logged in
6. Rename the second list as the first list
7. Repeat the process from step 2

Write a script that checks each minute and reports on who logs in and who logs out.

You can follow the steps below (not the only way):

1. Using the commands who and cut, extract the list of usernames currently logged in the system
2. To check after a minute, the sleep command can be used: sleep 60
3. Get the new list of users logged in after a minute
4. For each user in the list;
   1. check if they are in the second list using if and grep. You can dump the output of grep to /dev/null when using it in the as a test for the if statement
   2. If the user is not in the second list, print that the user has logged out
5. For each user in the second list,
   1. If he is in the first list, print that the user has logged in
6. Rename the second list as the first list
7. Repeat the process from step 2