Discussion: Presentations of ADHD

TO REPLY WITH A COMMENT TO EACH POST WITH TWO REFERENCE PER POST APA WITH CITATION ABOVE 2013. THE SECOND POST WILL BE GIVING TOMORROW.

Post 1

 

Questions

  1. How does not seeing your dad make you feel?   It is well understood that familial structure and exposure to marital discord are key risk factors in children with disruptive behavioral disorders (DBDs).
  2. Do you believe your behavior is “ok” and acceptable?    Many children may have little insight into their behavior, the consequences, and how their behavior affects those around them.  Evaluating their perspective is valuable in that the feedback can be included in their treatment plan and goals. 
  3. What in your daily life upsets you the most?    Workups of children with ADHD incorporates assessment for comorbid anxiety, depression, and developmental and learning disorders (Hamed, Kauer, & Stevens, 2015).  Evaluating daily anxiety causing factors such as school work, home environments, trauma, etc. can give the practitioner insight into clear diagnosis, treatment, and services appropriate for the client.

Feedback

     The most important people in the client’s life that could provide valuable feedback are her mother, grandmother, and teacher because they have the most contact with the client.  The grandmother is important to interview as she may have different experiences with the client while in her care.  The grandmother can also be asked about the mother’s behaviors and temperament during her childhood and adolescent years, especially considering the mother is exhibiting obvious symptoms of ADHD in her adult life.  Studies have shown a mean heritability rate of 75% in family studies of behavioral disorders (Wilens & Spencer, 2010).  The client’s teacher can provide a overview on any specific triggers preceding her tantrums and outbursts in class, and relationships with peers.  The mother should be asked about the severity of the client’s behavior and tantrums at home, relationship with sister, and level of disobedience as these assessments may indicate progression into more severe behavioral disorders suggesting prompt attention (Committee to Evaluate the Supplemental Security Income Disability Program for Children with Mental Disorders, 2015).  

Physical Exams and Diagnostic Tests

     When diagnosing ADHD and other DBDs, a thorough physical evaluations is needed to rule out medical causes.  A structural MRI could document diffuse abnormalities in children with ADHD.  A study found, individuals with ADHD may have smaller total cerebrum, cerebellum, and four cerebral lobes that do not change over time; in adults, imaging studies have shown smaller anterior cingulate cortex, thought to be the region that regulates ability to focus on tasks and choose between options, and smaller dorsolateral prefrontal cortex, which controls memory and ability to process new information (Wilens & Spencer, 2010).  EEG should also be considered as one study found EEG’s show more Beta activity than Theta/Alpha activity in children medication responders compared to non-medication responders, strongly suggesting a biological correlation to the behaviors in ADHD (Hamed et al., 2015).  Blood chemistry, thyroid levels, and ferritin levels have also been linked to the diagnosis of ADHD.  

Differential Diagnoses

  • ADHD (most likely):  Based on criteria outlined in the DSM-5, symptoms of inattention, hyperactivity, and impulsivity should be observed in at least different setting  and present for 6 months or longer; symptoms must result in impairment of social, academic, or other functioning; and symptoms must not be better explained or attributed to other physical or mental health condition, or social situation (Brown, Samuel, & Patel, 2018).
  • Oppositional Defiance Disorder (ODD):  Defined as a longstanding pattern of hostile, defiant, or disobedient behavior.  Children with ODD experience more school failures, suspensions, and expulsions; home relationships are often disrupted; and they are less successful at per relationships (Committee to Evaluate the Supplemental Security Income Disability Program for Children with Mental Disorders, 2015).  Characterized by temper tantrums, arguing with parents and other adults, defiance, refusal to comply with directives, deliberately annoying others, and being spiteful and vindictive.
  • Conduct Disorder:  A disruptive behavioral disorder with higher incidence in adolescence years, that includes some antisocial behaviors such as lying or stealing.  Severity of symptoms often rise with age and can co-occur with substance abuse disorders.  Adolescents with the disorder demonstrate  more school failure, drug abuse, and arrests than adolescents without the disorder.  It has been suggested that children with ADHD can progress to conduct disorder without proper treatment and intervention (Committee to Evaluate the Supplemental Security Income Disability Program for Children with Mental Disorders, 2015).

Pharmacological Agents

     Dexedrine Spansule 5mg daily is sustained-release amphetamine used to treat adults and children age 6 years and older with ADHD.  The drug has up to an 8-hour duration of clinical action, making its use preferable over IR formulations (Stahl, 2014b).  Most stimulants are highly and equally efficacious hence the label as first-line treatment for ADHD.  The side effect profile consists of cardiovascular, CNS, and hormonal effects requiring pre-assessment and monitoring throughout therapy.  Also, the once a day dosing is beneficial to children because it eliminates the interruption of the school day to take noon dose, maintains confidentiality, and increases likelihood of compliance (Shier, Reichenbacher, Ghuman, H., & Ghuman, J., 2013).  Compared to Atomoxetine, a selective norepinephrine reuptake inhibitor used to treat ADHD in adults and children over the age of 6, amphetamines have a more robust response (Shier et al., 2013).  Atomoxetine carries the FDA warning for the potential to increase suicidal ideation children and adolescents and is metabolized through the CYP2D6 pathway in which a small percentage of the Caucasian population are poor metabolizers, therefore dose adjustments may be required (Brown et al., 2018).

Lessons Learned

     Recommendations for treatment usually accompany the diagnosis of ADHD and have since been a source of controversy.  Although stimulant use to treat ADHD shows effectiveness in 65-75% of children after their first trial of use, the potentially dangerous side effects contribute to the indecisiveness of parents and children which affects treatment and compliance (Hamed et al., 2015). Approaching the diagnosis and suggested treatment should be done tactfully, as many parents have negative information and perceptions of the ADHD diagnosis.  As the practitioner, it is imperative that the challenges associated with assessing and treated ADHD are known.  The concerted effort to successfully treat children with ADHD involves family, caregivers, educators, and healthcare professionals alike. 

                                                                                                                                                               REFERENCES

Brown, K., Samuel, S., & Patel, D. (2018).  Pharmacological management of attention deficit hyperactivity disorder in children and adolescents: A review for practitioners.  Translational Pediatrics, 7(1): 36-47.  doi: 10.21037/tp.2017.08.02.

Committee to Evaluate the Supplemental Security Income Disability Program for Children with Mental Disorders (2015).  Mental disorders and disabilities among low-income children.  Washington, DC: National Academies Press (US). 

Hamed, A., Kauer, A., & Stevens, H. (2015).   Why the diagnosis of attention deficit hyperactivity disorder matters.  Frontiers in Psychiatry, 6: 168.  doi: 10.3389/fpsyt.2015.00168.

Shier, A., Reichenbacher, T., Ghuman, H., & Ghuman, J. (2013).  Pharmacological treatment of attention deficit hyperactivity disorder in children and adolescents: Clinical strategies.  Journal of Central Nervous System Disease, 5: 1-17.  doi: 10.4137/JCNSD.S6691.

Stahl, S. (2014b).  The prescriber’s guide (5th ed.).  St. Louis, MO: Cambridge University Press.

Wilens, T. & Spencer, T. (2010).  Understanding attention deficit/hyperactivity disorder from childhood to adulthood.  Postgraduate Medicine, 122(5): 97-109.  doi: 10.3810/pgm.2010.09.2206.

Quick turn

Forecasting Stock Price for XPO Logistics Company

You are an investment advisor, and your client is interested in buying the XPO Logistics company stock. To make the best financial decision for your client, you want to forecast the direction of the stock and determine whether your client should buy the stock based on forecasting and quantitative analysis. You start the process by gathering data and determining what forecasting technique to use.Complete the following steps.

  • Retrieve data on the closing price of the XPO stock (Symbol XPO) from January 1, 2020 to July 31, 2020. You can do this on multiple websites by using a search engine and inserting the name of the stock.
  • Using the time series forecasting method, moving average, compute the 10–, 30–, and 50–day continuous moving averages.
  • Show all data and computations for your moving averages.
    • Take each number computed for the 10–day moving average, and record it in a table. Do the same for the 30– and 50–day averages.
    • You can now either plot these data points in a graph or just compare them against each other to complete the next step.
  • Write your final analysis, and make a recommendation to your client:
    • What is the data telling you?
    • How do you explain it to your client?
    • How accurate is this forecast for XPO?
    • Can you develop a forecasting system or model that may be more reliable and accurate? Explain.

    Your completed paper must be at least three pages in length, and you must use at least two academic sources. Be sure to include a brief introduction section in which you provide a background, purpose, and road map for the paper. Adhere to APA Style when constructing this assignment, including in-text citations and references for all sources that are used. Please note that no abstract is needed.

ie 386

 . First, consider potential two factors that may affect your heart rate, and prepare two level conditions (Low condition and High condition) for each factor. For example, posture (sitting or standing) and workload (no workload and walking for 3 minutes) may be two potential factors. (10 points) 2. Write your statistical hypotheses (Null and Alternative) and explain them. (10 points) 3. Construct a design of experiment for your two factors and five replicates. (15 points) 4. Conduct your experiment and obtain your original data for all replications in random order. Take a picture of your data collection sheet and include it in the report appendix. (10 points) 5. Input the data properly into excel for 2 way ANOVA analysis. (10 points) 6. Construct graphs that compares heart rate in your Factor-A, Factor-B, and their interaction. Visually inspect them and write your findings about the three graphs. (15 points) 7. Analyze the obtained data by Two-way ANOVA method in Excel. Interpret the P-value, and state which hypothesis your data supports. (15 points) 8. Interpret the analysis result in terms of cardiovascular system. Why do your factors significantly (or not significantly) affect the measurement of your heart rate? Write a half page essay based on our lecture slides, textbooks or internet sources. Give your references. ( 

M2 Instructor Response

NEED FOLLOW-UP RESPONSE TO THE INSTRUCTOR:

ORIGINAL POSTING:

Recently, I had to choose between opening a savings account and a certificate of deposit (CD). The savings account offered 1.05% of interest and the CD, 2.75%. I had to compare both investments in a 5-year horizon in order to reach the achieved calculation. 

In this case, I relied on the Future Value (VF); which is the value that will have in the future a certain amount of money that we maintain today or that we decide to invest in a certain project. Future Value (VF) allows us to calculate how the value of the money we have today (today) will be modified considering the different investment alternatives available to us. In order to calculate the VF, we need to know the value of our money is the current moment and the interest rate that will be applied in the coming periods. Future Value is used to evaluate the best alternative as to what to do with our money today. Also to see how the value of money changes in the future.

The first alternative has an FV of $5,268.07, while the second alternative offered an FV of $5,726.37. The FV of the CD is greater than the savings account; as a result, it means a more attractive investment than the alternative. 

Explanation:

Task 2

◦Determine the present value of $75,000 discounted at 6% over 6 years.

FV= $75,000

Rate= 6%

Period= 6 years

PV = $52,872.04

 Determine the future value of $100,000 invested today at 4% for 5 years.

FV = $121,665.29

Rate= 4%

Period= 5 years

PV = $100,000

 Determine what monthly payment will need to be invested if you have $10,000 today and want it to grow to $100,000 over 20 years at 4.5%.

Monthly payment = $193.66

PV= $10,000

FV= $100,000

Period= 20 years

Rate= 4.5%

References

Patnaik, P. (2009). The value of money

Staff, I. (2018, March 6). Time Value of Money – TVM. Retrieved from https://www.investopedia.com/terms/t/timevalueofmoney.asp

INSTRUCTOR:

Task 2:

=PV(0.06,6,0,75000)

What would be the formula if the interest rate were compounded monthly?

NEED FOLLOW-UP

Case Assignment 11

 

Case Analysis Guide

1.) Describe what is going on by noting:

a. Who are the key actors? What do we know about each of them?

b. What are the key systems involved? What do we know about each?

c. What does the problem seem to be? What are the underlying problems/issues?

d. What are the key sources of tension? What has lead up to this decision moment? What has changed to make this particular moment such a difficult one to negotiate?

2.) Explore the key sources of tension by considering:

a. What roles do different actors play in creating/sustaining a tension? 

i. How can you make sense of these roles? How does an actor’s background, attributes, culture, beliefs, etc., shape his/her perceptions? His/her behaviors? It may help spur your thinking to consider: How might things be different if a male actor were female? If a Black actor were white?

b. What roles do systems play in creating/sustaining a tension (issue/problem)?

i. How can you make sense of these roles? How does a system’s structure, organization, functionality, resources, location, rules, norms, expectations, etc., shape the kinds of experiences the key actors are having?

c. How do interactions among actors and systems relate to a tension?

3.) Assess how additional knowledge and/or theory could deepen your understanding of the key sources of tension, and integrate that additional knowledge:

a. What is known about people with the attributes of the key actors? (e.g. developmental stages, cultural differences, gender differences, life transitions, people experiencing particular types of stressors, etc.) – look for both theories and empirical evidence!

b. What is known about systems like those at the center of this case? (e.g. bureaucratic systems, hierarchical versus flat organizational structures, segregated neighborhoods, the impact of high job stress and low resources on worker productivity, strengths-based versus deficit-based service environments, etc.) – look for both theories and empirical evidence!

c. How does this additional knowledge shape your thinking about the key sources of tension?

4.) Develop a problem formulation that focuses attention on the central tension/issue that must be addressed if the decision-maker is to move things forward in a productive way, while clarifying the key individual and systems factors that are most salient to why/how this issue has come to be.

5.) Develop alternative strategies that the decision-maker could realistically use to address the central issue. Be sure that each strategy begins in the specific moment/situation in which the decision-maker finds him/herself – that is, if the decision-maker is in the midst of a heated argument, do not suggest a strategy that will start tomorrow, assuming that somehow he/she has gotten through the argument. Your strategy will often extend from the current moment into the near future, but you must articulate your strategy for getting from where things are right now, to a point where the key issue has been resolved enough to move forward productively.

6.) Look for evidence to support your strategies – what does the research literature tell us is likely to work? What does theory predict will happen if a particular strategy is selected? What does your own practice experience tell you about the pros and cons of each strategy?

7.) Choose the best strategy, and justify that choice.

Please make sure it is APA style and one thousand words or less or  one page and a half. Please make sure that you list 3 recommendations, which needs to be in numerical order. Then you must pick one recommendation out of the 3 and state why you chose that specific recommendation.

The first 2 attachments are Case Analysis examples on how they should be done and the third is the actual case analysis that needs to be written on.

 Required Components of Case Analyses- Introduction-Briefly identify the major elements (i.e., who, where, what) of the case. Problem Statement-Give a specific and concisely written formulation of the problem to guide analysis and problem-solving. Not a question but a statement of the problem. Usually no more than two sentences.  Contextual Analysis-Summarize internal and external issues that created or sustain the problem (i.e., why). Depending on the system level, these may include: cultural, economic/resource, political/legal, organizational, social, and ethical issues, interpersonal relationships, and intrapsychic and biological conditions. Use and cite professional sources (and include APA-style references). Alternative Strategies-Identify three or more possible solutions to the problem. These solutions should be plausible, distinct and non-contingent (i.e., not interdependent). Briefly note advantages and disadvantages of each possible solution for addressing the problem. Recommendation-Justify your preferred strategy, explaining why you selected that particular one, how it best resolves the problem, and how you will determine its effectiveness. Be sure your recommended strategy can be plausibly supported by resources available in the case context. Ways of Knowing –Self-reflectively identify the source for your thinking about this case. For example, did you base it on previous experience, intuition, specific theories, personal values, authority, empirical research, previous discussion of similar problems, or something else.

Market Segmentation/ Market Situation

Journal 1

Imagine you are working for a company that has $1 million to spend on a new strategy and is considering market development versus product development. In this case, what determining factors would be most important to consider? What recommendations would you make to the CEO?

Your journal entry must be at least 200 words. No references or citations are necessary.

Journal 2

In this unit, we discussed the concept of market segmentation, which is defined as product positioning that subdivides the market to target specific customers. Identify a product that you have seen with either effective or ineffective market segmentation. Explain what makes the market segmentation effective or ineffective.

Your journal entry must be at least 200 words. No references or citations are necessary.

Assessment V

1. Describe a conflict situation that requires you to use 1) avoidance, 2) defusion, and 3) confrontation in order to solve the problem. Your response should be at least 200 words in length

2. Do you agree with privacy advocates who contend that Facebook should provide ways for users to opt out of the mobile ad targeting? Why, or why not? Your response should be at least 200 words in length.

3. Describe the relationship between annual objectives and policies. Your response should be at least 200 words in length.

4. Briefly explain seven of the guidelines to follow in developing an organizational chart. Your response should be at least 200 words in length.

Case Study: Inflammatory Bowel Disease

Review the case study and answer all questions with a scholarly response using APA and include 2 scholarly references.

Inflammatory Bowel Disease:  

The patient is an 11-year-old girl who has been complaining of intermittent right lower quadrant pain and diarrhea for the past year. She is small for her age. Her physical examination indicates some mild right lower quadrant tenderness and fullness. 

    

Studies 

Hemoglobin (Hgb),: 8.6 g/dL (normal: >12 g/dL)
 

Hematocrit (Hct),:   28% (normal: 31%-43%)
 

Vitamin B12 level,:  68 pg/mL (normal: 100-700 pg/mL)
 

Meckel scan,; No evidence of Meckel diverticulum
 

D-Xylose absorption:  60 min: 8 mg/dL (normal: >15-20 mg/dL)  and  120 min: 6 mg/dL (normal: >20 mg/dL) 

Lactose tolerance:  No change in glucose level (normal: >20 mg/dL rise in glucose)
 

Small bowel series:  Constriction of multiple segments of the small intestine 

     

Diagnostic Analysis  

The child’s small bowel series is compatible with Crohn disease of the small intestine. Intestinal absorption is diminished, as indicated by the abnormal D-xylose and lactose tolerance tests. Absorption is so bad that she cannot absorb vitamin B12. As a result, she has vitamin B12 deficiency anemia. She was placed on an aggressive immunosuppressive regimen, and her condition improved significantly. Unfortunately, 2 years later she experienced unremitting obstructive symptoms and required surgery. One year after surgery, her gastrointestinal function was normal, and her anemia had resolved. Her growth status matched her age group. Her absorption tests were normal, as were her B12 levels. Her immunosuppressive drugs were discontinued, and she is doing well. 

Critical Thinking Questions 

  1. Why was this patient placed on immunosuppressive therapy?
     
  2. Why was the Meckel scan ordered for this patient?
     
  3. What are the clinical differences and treatment options for Ulcerative Colitis and Crohn’s
    Disease? (always on boards)
     
  4. What is prognosis for patients with IBD and what are the follow up recommendations for
    managing disease?
     

response wk1

 Please respond to following : discuss any difference in diagnosis and response with ref , apa format

My diagnosis would be the common cold or rhinitis. The most common etiology of Acute Respiratory Syndrome is a viral infection associated with the common cold (Patel & Hwang,2021). Trying to distinguish between acute viral symptoms vs bacterial symptoms can be challenging to the provider. Treatment for acute viral rhinosinusitis focuses on symptomatic management as it typically resolves within 7 to 10 days (Patel & Hwang,2021). This healthy 35-year-old female has had symptoms for two days which include congestion and runny nose. Her treatment would be prescribed as Tylenol 650mg PO every 4-6 hours PRN for headache or ibuprofen 600mg po every 6 hours for headache, Pseudoephedrine 60mg po every 4-6 hours as needed for nasal congestion, do not exceed 240 mg in 24 hours (Lexicomp,2021). She may also find relief using a sterile Saline irrigation to both nostrils as needed for congestion. Home remedies which can help discomfort are a humidifier at night, po fluids, rest, and healthy diet with plenty of fruits and vegetables. Vitamin C and herbal products like echinacea, are advertised to treat or prevent the common cold, none of these treatments are likely to cause harm, and have not proven to be helpful, but may be beneficial to try (Sexton & McClain,2021). This patient should be managed with supportive care. There are no treatments to shorten the clinical course of the disease (Patel & Hwang,2021). Bacterial infection occurs in only 0.5 to 2 percent of episodes of acute respiratory symptoms (Patel & Hwang,2021).

I would respond to this patient by providing education to her. I would show concern, empathy and use therapeutic communication by stating, “I understand having a headache and stuffy nose can be very uncomfortable and you have an exciting occasion coming up. Your symptoms of runny nose and headache have been ongoing for two days and you have not had a fever. These symptoms can be uncomfortable and bothersome, but it is still early on regarding the course of infection. Cold symptoms can take as long as 7 or 10 days to recover, you have a virus. Your exam does not show me that you are having any complications from this virus like a sinus infection. The best form of treatment for a quicker recovery is for you to to get plenty of rest, drink fluids, and take Tylenol or Ibuprofen for your headache. You may also take a decongestant called Sudafed, it is over the counter, this should provide some comfort to you so that you can breathe easier through your nose and to release some of that congestion in your head. Right now, your body is fighting a common cold. I understand you have a history of sinus infections, but it is important to try to take good care of yourself to prevent this virus infection to turn into a bacterial sinus infection. Antibiotics do not help any virus and will not help your symptoms, in fact, antibiotics may make you worse. Sinusitis starts as viral and can turn into bacteria, but this does not happen as early as two days, it may take 10 days or more (Patel & Hwant,2021). Antibiotics cause undesirable side effects like nausea, vomiting, and diarrhea, and as a young woman you could get a secondary infection such as a yeast infection as a side effect. Overuse of antibiotics causes resistance to antibiotics and perhaps in the future when you have a bacterial infection and need an antibiotic it may not help you when you need it the most. If your symptoms do not get better in ten days or if you develop a fever or shortness of breath, please call me, or return to my office for follow up care.
 

NU560-8D WEEK7 Discussion1 reply2

 

I chose mindfulness-based stress reduction (MBSR) in treatment to reduce chronic pain because I believe that health should be a comprehensive, total body state, not just a physical one. Chronic pain is an ailment many people suffer daily, including my family members who live with rheumatoid arthritis or fibromyalgia. My purpose in this research was to discover a mind-body approach to use in my advanced practice to benefit those with chronic pain effectively. Ideally, people with daily pain will be able to utilize MBSR as a practice to control their pain levels and their feelings and responses to the negative symptoms associated with their disorders. As an advanced practice nurse, I will refer my patients to a helpful course that ensures their physical and psychological needs are met. MBSR has been proven to be a beneficial nonpharmacologic therapy to manage chronic pain symptoms. By using the stress reduction and meditation aspects of the treatment in addition to their traditional care, patients will be able to treat all aspects of their health. 

Aiken et al. (2016) measured the outcomes of patient mortality, ratings of care, care quality, patient safety, adverse events, and nurse burnout or job dissatisfaction. These factors were measured to determine if more professional nurses versus associate nurses in a workplace are associated with more favorable outcomes for patients and nurses. The researchers analyzed these factors through reports obtained from hospitals’ patient discharge data, hospital administrative information, and nurse and patient surveys. In my theoretical research, I would plan to measure the outcomes of patient-reported pain levels and quality of life. Through surveys before, during, and after an 8-week MBSR course, the efficacy of the treatment could be observed. 

Activity 3 – Financial Management

Activity 3 – CLO 1, CLO 3, CLO 4, CLO 5 

This activity has two parts, please answer both

1. Two bonds A and B have the same credit rating, the same par value and the same coupon rate. Bond A has 30 years to maturity and bond B has five (5) years to maturity. Please demonstrate your understanding of interest rates risk by answering the following questions :

– Discuss which bond will trade at a higher price in the market

– Discuss what happens to the market price of each bond if the interest rates in the economy go up.

– Which bond would have a higher percentage price change if interest rates go up?

– Please substantiate your argument with numerical examples.

– As a bond investor, if you expect a slowdown in the economy over the next 12 months, what would be your investment strategy?

2. Familiarity with random variables is essential to understand the basics of portfolio theory. Given that  CLA 2 assignment is about portfolio formation, you need to strengthen your skills in dealing with random variables. Please review and explain the significance of basic concepts about random variables, namely, the mean, the variance, the standard deviation, and the correlation.

Provide your explanations and definitions in detail and be precise. Comment on your findings. Provide references for content when necessary. Provide your work in detail and explain in your own words. Support your statements with peer-reviewed in-text citation(s) and reference(s). 

Note: 

1. Need to write the assignment in APA 7th edition format. 

2. Provide your explanations and definitions in detail and be precise. 

3. Comment on your findings. 

4. Provide references for content when necessary. 

5. Provide your work in detail and explain in your own words. 

6. Support your statements with peer-reviewed in-text citation(s) and reference(s).

7. Need to include the information from the textbook as the reference.

8. Need to include at least 2 peer-reviewed articles as the reference.

9. Need to provide examples whenever applicable.

10. Please find the related PowerPoint and textbook in the attachment. 

11. Please find the Course Learning Outcome list of this course in the attachment  

Textbook Information:

Ross, S. A., Westerfield, R. W., & Jordan, R. D. (2018). Fundamentals of corporate finance (12th ed.). McGraw-Hill

ISBN: 9781259918957