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June 23, 2025
June 23, 2025

Nursing Inspiration Board

1. Inspiration (45 points/30%)

1. Creates a one-page vision board that reflects own inspiration and motivation for becoming a nurse. The format may be a PowerPoint slide, word document, infographic etc.

Nursing Inspiration Board

2. Includes pictures, a collage, a series of quotes, etc. Choose words and images that are meaningful to you. This should be a page that you can post somewhere, perhaps where you study, to motivate yourself as you move forward on your journey to become a nurse.

3. Links the inspiration to your ePortfolio’s “About Me” section.

2. Presentation (65 points/43%)

1. Presents the inspiration to the class.

2. Describes the inspiration and the relationship of the inspiration to being a nurse.

3. Answers the following questions during presentation:,

i. What does your inspiration mean?,

ii. What concept challenged you during this course?,

iii. What has been the greatest lesson you have learned?,

iv. How will what you have learned help you be successful at Chamberlain University?

Nursing Inspiration Board

The vision board includes a collage of meaningful images and quotes. Key elements:

  • Images: A stethoscope, heart monitor, hands holding, Florence Nightingale, a hospital bedside, and a diploma—symbolizing compassion, service, healing, achievement, and the path ahead.

  • Quotes:

    • “Nursing is an art: and if it is to be made an art, it requires an exclusive devotion.” – Florence Nightingale

    • “The best way to find yourself is to lose yourself in the service of others.” – Mahatma Gandhi

  • Nursing Inspiration Board

  • Personal Words: “Empathy,” “Dedication,” “Healing,” and “Hope.”

This board is designed to hang near the study area as a daily motivator and is linked directly to the “About Me” section of the ePortfolio, describing a personal story of why nursing was chosen.


Part 2: Presentation Overview

What does your inspiration mean?
My inspiration reflects a deep desire to make a difference in people’s lives through compassion and care. It is a reminder of why I chose this path—to be a source of hope and healing for others, especially in their most vulnerable moments.

What concept challenged you during this course?
The most challenging concept was time management and balancing academic responsibilities with personal life. Nursing is demanding, and this course pushed me to grow in discipline and organization—skills vital in clinical practice.

What has been the greatest lesson you have learned?
I’ve learned that nursing is more than technical skill—it’s emotional intelligence, communication, and resilience. The importance of being present with patients, even during difficult times, has been my biggest takeaway.

How will what you have learned help you be successful at Chamberlain University?
This course has given me the foundational tools and mindset needed to thrive—self-awareness, the ability to reflect, and a commitment to lifelong learning. I now understand how to use both inspiration and discipline to persist through challenges at Chamberlain and beyond.

How is your inspiration connected to becoming a nurse?
Each image and quote on my vision board connects to a personal story—whether it’s a family member’s health battle or the admiration I have for nurses I’ve encountered. They all serve as emotional fuel to continue pursuing nursing with purpose and heart.

June 23, 2025
June 23, 2025

Federal Data Analytics Plan

Freedom is not the permission to do what you like; it’s the power to do what you ought.” – Os Guinness

“I have traveled the length and breadth of this country and talked with the best people, and I can assure you that data processing is a fad that won’t last out the year.” –Editor in Charge 1957 Business books for Prentice Hall

 

Federal Data Analytics Plan

Prepare a 20-minute PowerPoint presentation with speaker’s notes for senior leadership of a Federal Government agency of your choice that outlines a strategic plan for implementing a data analytics solution to a problem or challenge that you have identified.  You will have time for a maximum of 20 slides to present the plan. Use the notes section to guide your presenter through the presentation. Begin by clearly stating the challenge that you propose to resolve.  Make your case for adoption of the project.  Follow with a clear annotation of the life cycle of the project to manage the expectations of the leadership.

  • Federal Data Analytics Plan
  • Business case evaluation
  • Data identification
  • Data acquisition and filtering
  • Data extraction
  • Data validation and cleansing
  • Data aggregation and representation
  • Data analysis
  • Data visualization
  • Utilization of analysis results

Your presentation should report new and emerging technologies in TWO of the critical areas listed above. Describe the technologies and their proposed applications. Consider the implications of these developments for leadership policy and planning. Please be sure to explain how these technologies will enhance corporate operations on a multi-national scale. What must leadership do now to prepare for the technological innovations you describe? Offer concrete recommendations for action. Your speaker’s notes should incorporate resources and references.

The course objective for this project includes your ability to demonstrate appreciation for the potential impact of technology on leadership thought and action. Provide sufficient reasoned masters-level information for senior leadership to make a decision regarding both your proposed action and its associated impacts.

Make sure you provide:

  • A presentation that shows understanding and application of technological concerns and benefits of data analytics.
  • A clear and reasonable display of leadership, application of technology, and innovation stewardship of Government resources.
  • A clear, reasonable, and complete discussion of critical the leadership may expect upon successful completion of the project.
  • Clear, reasonable, and complete set of speaker’s notes with appropriate references.
  • Clear, reasonable, and complete set of recommendations ending with a call for action by the organization’s senior leadership based on acceptance of the presentation
  • Insights as to how to prepare leaders and their organizations for future technological developments

In addition to your slide deck, provide a one-page executive summary of your presentation to provide the head of the department with the essence of your proposal

Federal Data Analytics Plan

  • What is the specific challenge being addressed in the federal agency?,

  • What is the strategic plan for implementing data analytics?,

  • How will the project lifecycle be managed from business case to analysis utilization?,

  • What new technologies are emerging in two lifecycle phases?,

  • What actions should leadership take to prepare for these innovations?

June 23, 2025
June 23, 2025

Remote Access Domain Security

· Identify common risks, threats, and vulnerabilities found in the LAN-to-WAN Domain that require proper security controls for mitigation

· Identify network and security policies needed to properly secure the LAN-to-WAN portion of the network infrastructure

Remote Access Domain Security

Write a 2-3 page APA-formatted essay that identifies network and security policies needed to properly secure the LAN-to-WAN portion of the network infrastructure

Written Essay Assi

Remote Access Domain Securitygnment 3-2:

· Identify common risks, threats, and vulnerabilities found in the Remote Access Domain that require proper security controls for mitigation

· Identify network and security policies needed to properly secure the Remote Access Domain portion of the network infrastructure

· Write a 2-3 page APA-formatted essay recommending Remote Access Domain hardening solutions by implementing proper security controls at the Internet ingress/egress point within an IT infrastructure

 

  1. What are common risks threats, and vulnerabilities in the LAN-to-WAN domain?,

  2. What network and security policies help secure the LAN-to-WAN domain?,

  3. What are common risks threats and vulnerabilities in the Remote Access domain?,

  4. What security controls should be implemented at the Internet ingress/egress point?,

  5. How can the Remote Access domain be hardened for improved security?

Remote Access Domain Security


Written Essay Assignment 3-1

LAN-to-WAN Domain Security

Introduction

The LAN-to-WAN domain forms a critical part of the IT infrastructure where internal networks interface with external networks like the internet. This boundary is a common target for cyberattacks and requires strong security controls and policies to prevent unauthorized access, data exfiltration, and service disruptions.

Common Risks, Threats, and Vulnerabilities

The LAN-to-WAN domain is exposed to a range of threats including:

  • Malware and viruses entering from external sources.

  • Denial of Service (DoS) or Distributed Denial of Service (DDoS) attacks that flood network resources.

  • Unauthorized access via poorly secured firewalls or open ports.

  • Man-in-the-Middle (MitM) attacks, which intercept data between LAN and WAN.

  • IP spoofing and routing attacks, leading to misdirection of traffic.

  • Data leakage due to insufficient outbound controls.

These threats exploit vulnerabilities such as weak firewall configurations, outdated firmware, lack of intrusion detection systems (IDS), and improper network segmentation.

Network and Security Policies

To mitigate these risks, organizations must establish and enforce strict policies:

  1. Firewall Policy

    • All incoming and outgoing traffic must pass through a configured stateful firewall.

    • Only necessary ports and protocols should be allowed.

  2. Intrusion Detection/Prevention System (IDS/IPS) Policy

    • Deploy IDS/IPS at the LAN-WAN edge to monitor and block malicious traffic.

  3. Access Control Policy

    • Implement Role-Based Access Control (RBAC) and Multi-Factor Authentication (MFA) for administrative interfaces.

    • Block anonymous or unauthorized external access attempts.

  4. Patch Management Policy

    • Regular updates for firewall and router firmware.

    • Security patches must be applied promptly.

  5. Network Segmentation Policy

    • Use DMZ (demilitarized zones) for public-facing servers.

    • Separate critical systems from general user networks.

  6. VPN and Encryption Policy

    • Enforce encrypted communication between LAN and WAN using secure VPN protocols (e.g., IPSec).

    • Apply TLS/SSL for web traffic.

Conclusion

The LAN-to-WAN domain is the gateway between private networks and the internet, making it essential to implement layered security policies. Combining firewalls, IDS/IPS, encryption, and strict access controls ensures resilient and secure network operations.

June 23, 2025
June 23, 2025

Challenging Group Topics

Imagine the group you have been designing has had the opportunity to meet for at least two sessions. Over the two group sessions, some topics have surfaced that are challenging for group members. Choose three of the topics from the following list that have surfaced in your group. o    Sexual abuse o    Homosexuality o    Religious preferences o    Abortion o    Use of illegal drugs o    Drinking and driving

Challenging Group Topics

Write a 1,000-1,500-word summary that includes the following: o    A description of the selected topics o    Details about how the topics were manifested in the group sessions. For example, someone states he/she is uncomfortable discussing the topic and/or being a part of the group. o    Details about how you would handle the situations o    A minimum of three scholarly sources in addition to the course textbook to support the findings. Scholarly sources include peer reviewed articles, textbooks, the Bible, etc.

Challenging Group Topics

Prepare this assignment according to the guidelines found in the APA Style Guide, located in the Student Success Center.

This assignment uses a rubric. Please review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.

You are required to submit this assignment to LopesWrite. A link to the LopesWrite technical support articles is located in Class Resources if you need assistance.

Challenging Group Topics

  1. What are the three sensitive topics discussed in the group?,

  2. How did each topic emerge or affect group dynamics?,

  3. What were some member reactions to these topics?,

  4. How should a group leader handle such discomfort or conflict?,

  5. What scholarly support guides best practices in managing sensitive discussions?


📝 Comprehensive General Response:


Navigating Challenging Topics in Group Counseling

Introduction

Group counseling often creates a dynamic space where participants can explore difficult emotions, share personal experiences, and confront complex social or psychological issues. As the group evolves, sensitive topics often surface, challenging both members and facilitators to maintain safety, respect, and therapeutic progress. In this summary, we examine three controversial topics—sexual abuse, homosexuality, and abortion—that arose during two group sessions. Each topic elicited strong reactions, impacted group cohesion, and tested the facilitator’s skill in managing dialogue. The following analysis discusses how these issues manifested, how they were addressed, and what best practices should be used to support the group ethically and compassionately.


Topic 1: Sexual Abuse

Description

Sexual abuse refers to any non-consensual sexual act or behavior inflicted on a person, often leaving deep psychological and emotional trauma. It is a highly sensitive topic due to the stigma, shame, and pain survivors may experience.

Manifestation in Group Sessions

During the second session, one group member shared a traumatic experience involving childhood sexual abuse. While this disclosure was brave and important, it led to discomfort among other members. One participant appeared visibly shaken and asked for a short break. Another expressed concern over being “triggered” by the conversation, mentioning past experiences they were not ready to discuss.

Handling the Situation

As a facilitator, it is critical to validate the courage it takes to share such experiences while also protecting the emotional safety of the group. I would thank the participant for their vulnerability and acknowledge the complexity of the emotions present. I would then offer a brief grounding exercise for the group, followed by a check-in to assess the emotional states of all members.

Moving forward, I would revisit the group’s ground rules, emphasizing confidentiality, the right to pass, and trauma-informed language. In individual follow-ups, I would encourage those struggling to seek one-on-one support, if necessary, and reaffirm the importance of pacing disclosures. The goal is to allow space for healing while preserving emotional safety for all members.

June 23, 2025
June 23, 2025

Employee Benefits & Retention

Please read the following for a review of employee benefits:

Doyle, A. (2019).  Types of employee benefits and perks . Retrieved from https://www.thebalancecareers.com/types-of-employee-benefits-and-perks-2060433. (Be sure to click on the links within this source to gain depth about specific benefits.)

Glassdoor Team. (2018).  11 Companies with seriously impressive benefits . Retrieved from https://www.glassdoor.com/blog/companies-seriously-impressive-benefits/

Employee Benefits & Retention

Hamill, L. (2019). Workplace culture: The invisible perk your employees actually need: Good benefits can create hype, but they fail to address employees’ greatest need: Care.  Employee Benefit News, 33(5), 33. Available in the Trident Online Library.

The Georgia Society of CPAs. (2020, January 17).  Your employee benefits & retention  [Video file]. Retrieved from https://www.youtube.com/watch?v=MW-zlOT4IMM

Case Assignment

You have been asked to give a presentation at a college Society for Human Resource Management student chapter meeting on the following topic:

The relationship among employee benefits, employee retention, and employee turnover.

Create a presentation of 10–12 slides with audio voiceover and provide detailed speaker notes under each slide. Be sure to utilize at least 3 references from the Trident Online Library.

Assignment Expectations

Employee Benefits & Retention

Your submission will be evaluated using the criteria as stated in the Case rubric. The following is a review of the rubric criteria:

· Assignment-Driven: Does the submission fully address all aspects of the assignment? Is the assignment addressed accurately and precisely using sound logic? Does it meet minimum length requirements?

· Critical Thinking: Does the submission demonstrate graduate-level analysis, in which information derived from multiple sources, expert opinions, and assumptions has been critically evaluated and synthesized in the formulation of a logical set of conclusions? Does it address the topic with sufficient depth of discussion and analysis?

· Business Writing: Is the submission logical, well organized and well written? Are the grammar, spelling, and vocabulary appropriate for graduate-level work? Are section headings included? Are paraphrasing and synthesis of concepts the primary means of responding, or is justification/support instead conveyed through excessive use of direct quotations?

· Effective Use of Information: Does the submission demonstrate that the student has read, understood, and can apply the background materials for the module? If required, has the student demonstrated effective research, as evidenced by student’s use of relevant and quality (library?) sources? Do additional sources used provide strong support for conclusions drawn, and do they help in shaping the overall paper?

· Citing Sources: Does the student demonstrate understanding of APA Style of referencing, by inclusion of proper citations (for paraphrased text and direct quotations) as appropriate? Have all sources (e.g., references used from the Background page, the assignment readings, and outside research) been included, and are these properly cited? Have all sources cited in the paper been included on the References page?

· Timeliness: Has the assignment been submitted to TLC (Trident’s learning management system) on or before the module’s due date?

Employee Benefits & Retention

  1. What are common types of employee benefits?,

  2. How do benefits influence employee retention?,

  3. What happens when benefits are poor or lacking?,

  4. What are current trends in employee benefits?,

  5. How can HR use benefits strategically?

June 23, 2025
June 23, 2025
  • Discussion Prompt: Now that you’ve explored emotional intelligence (Head & Heart), AI, and strategic simplicity (Business Made Simple), it’s time to bring it all together. Reflect on how you will integrate emotional intelligence, AI-driven insights, and simple business strategies to ensure the long-term success of your business or process improvement. How will each of these elements play a role in creating a sustainable, values-driven business? Consider what data you will continue to collect and analyze to support ongoing decision-making and improvement.
  • EQ, AI, and Strategy Integration

EQ, AI, and Strategy Integration

  • Response Prompt: Provide feedback on how a peer can further integrate emotional intelligence, AI, and data to strengthen their business or process improvement plan. How can they ensure that all three elements work together harmoniously for long-term success?
  • EQ, AI, and Strategy Integration
  1. How will you integrate emotional intelligence into your business or process improvement?,

  2. What role will AI-driven insights play in your strategy?,

  3. How will simple business strategies contribute to long-term success?,

  4. What data will you continue to collect and analyze?,

  5. How will these elements support ongoing decision-making and improvement?

June 23, 2025
June 23, 2025

Linear Algebra Home Exam

General Instructions 1. Submission of a solution to this exam constitutes a statement that you followed these instructions.

If you failed to follow some of the instructions for whatever reason, explain at the top of the exams which instructions you failed to follow, how you solved the relevant parts of the exam, and why.

Linear Algebra Home Exam

  • How can we efficiently and stably factor a real anti-symmetric matrix into A=LTLTA = LTL^T?,

  • How many operations does the anti-symmetric factorization perform compared to LU?,

  • What happens when we apply partial pivoting to the anti-symmetric factorization?,

  • How do we benchmark and compare solvers for Laplacian systems?,

  • How can we multiply sparse matrices efficiently in CSC format?

2. The exam is individual. You may not discuss the exam, your solutions or other solutions, or anything having to do with the algorithms and computations that the exam focuses on with any person except Sivan Toledo. You must follow this rule before, during, and after you solve the exam (including in the periods before you start the exam and after you submit your solution, since different students may solve it at different times).

3. You may only discuss this exam with persons other than Sivan Toledo after the grades are published.

4. You may use any publicly-accessible non-human resource to solve the exam, but you must cite every resource that you use. For books, articles, web sites, and so on, cite the title, author, and URL, and explain how you used the resource. For AI tools and other responsive resources, give the name of the tool (and URL if not well known) and the prompts. If the interaction was complex, just summarize the interaction. In both cases, explain how you used the results.

5. Include all the code that you used, and mark clearly code that you wrote, code from other sources (static or responsive/AI). If you fixed or corrected existing or generated code, indicate your changes or fixes clearly.

6. All code must be clearly documented using comments.

7. Use diagrams and graphs where appropriate to clarify and/or enhance your answers.

1 Efficient and Stable Factorization of Anti-Symmetric Matrices (40 points)

We can solve a linear system of equation with an <-by-< symmetric positive-definite matrix � using the Cholesky factorization using 1

3< 3 + =(<3) arithmetic operations. The algorithm is backward stable and it is

about twice as efficient as an !* factorization with partial pivoting, which is also usually backward stable, but does not exploit symmetry. In some vague way it makes sense that Cholesky would be twice as efficient,

Linear Algebra Home Exam

 

ראינו בשיעור 2

 

because due to the symmetry of the matrix, we can represent it using its upper and lower half, so we do not need to update the entire trailing submatrix after every elimination step.

In this problem we want to factor in a backward-stable a real matrix that is not symmetric, but satis- fies the constraint �) = −�. In other words, its elements satisfy �7 8 = −�87. We will call such matrices anti symmetric. Such matrices are fully defined by about <2/2 real values, not <2, so we hope to achieve computational savings similar to the savings in Cholesky.

The main building block in our new algorithm will be to zero most of the first column by subtracting a multiple of the second row of � from rows 3 : <. We will then zero most of the first row by subtracting the same multiples of the second column from columns 3 : <. We continue with the trailing submatrix in the same way, until we reduce � to a tridiagonal matrix) , in only sub- and super-diagonal elements)7+7,7,)7,7+1 are nonzero, and which is also anti symmetric.

1. Implement this algorithm and test it on random matrices with Gaussian elements. The algorithm should return twomatrices, a lower triangularmatrix !with 1s on the diagonal and an anti symmetric matrix ) , such that � satisfies � = !)!) (but a weaker condition in floating point). For simplicity, operate on all the elements of � and the trailing submatrices, not only on one triangle. Try to make the code as efficient as possible (while operating on both triangles). Test that it works correctly and explain how you performed the tests. Hint: As in !* with Gaussian elimination, if you eliminate column 8 with using a matrix !8 with ones on the diagonal and the negation of the multipliers below the diagonal in one column (which one?), thematrix ! should have themultipliers in the same position, but not negated.

2. Roughly how many arithmetic operation does your code perform? The answer should be given as an explicit multiple of <3; you can ignore low order terms. Please relate your answer to the number of operations that the !* factorization performs. Explain the result.

3. If you were to modify the algorithm and the code from Part 1 so that it would only operate on one triangle, say the lower one, howmany operations would the improved algorithm perform? How does this relate to the number of operations performed by the !* factorization?

4. The main motivation for this algorithm is that we can incorporate into it partial pivoting. Show that the algorithm, as presented up to now, can fail, and explain why it might be unstable even in cases where it does not fail.

5. We can avoid these problems by exchanging before we eliminate column 8 and row 8 two rows and the same two columns so that the element in position 8+1, 8 in the trailing submatrix has the largest mag- nitude among elements 8 + 1 : <, 8. We can express the overall factorization as %�%) = !)!) ,where % is a permutation matrix. Explain how these exchanges affect the matrix !. How do you think we can characterize the trailing submatrices and) if we perform these exchanges, both in the worst case and in practice? You only need to provide a reasonable characterization and to justify it from what we know about !* with partial pivoting; you do not need to provide a formal analysis.

6. We can make this algorithm even more efficient by noticing that the matrix � = )!) is upper Hes- senberg (elements �7 8 with 7 > 8 + 1 are zeros). Prove that this is indeed the case and explain how elements of ) relate to elements of � (so that we can construct ) from �).

7. Modify your code from Part 1 so that it computes ! and � . You can again update the entire trailing submatrix.

Linear Algebra Home Exam

8. Explain how this modification reduces the number of arithmetic operations and give an estimate for the number of operations that the algorithm performs if it exploits the anti-symmetry (the leading term only).

9. To solve a system �F = %)!)!)%F = 1, we need to solve linear systems with a anti-symmetric tridi- agonal matrix) . Explain howwe can do that in a backward-stable way in$(<) arithmetic operations and storage.

2 Benchmarking Linear Solvers (30 Points) The aim of this problem is to benchmark a number of exiting solvers of linear equations. The focus is on producing valid and robust results and on presenting them well. For this problem, it is important that the solvers be efficient. Matlab is considered the gold standard for this problem. All its solvers are good enough (if used correctly); you can use some other programming environment (e.g., Python), but if one or more of its solvers is inefficient, you may lose points.

1. Implement a function lap2d that creates the Laplacian of an <-by-< two dimensional grid. Theweight of all edges should be 1, and the row-sums of all rows other than the first should be 0. The sum of the elements in the first row should be 1. The row/column ordering of the matrix should be a row- by-row ordering of the grid vertices (the so-called natural order). Thematrixmust be represented efficiently as a sparsematrix (inmatlab, the form S=sparse(i,j,a) is a goodway to construct the matrix from a set of nonzero values 07 8) Plot the nonzero structure of the matrix (spy) for a 10-by-10 grid.

2. Implement a similar function lap3d for 3-dimensional grids. Plot it for some convenient size for which the structure of the matrix is clear from the plot.

3. Write a code that measures the performance of several linear solvers for �F = 1, where � is a Lapla- cian from Part 1 and 1 is a random vector. You The solvers that you need to implement are:

(a) A dense Cholesky factorization. In Matlab, A=full(S) creates a dense representation of a sparse matrix.

(b) A sparse Cholesky factorization, with a row/column permutation to enhance sparsity in the factor. In Matlab, help chol (or the more detailed doc chol) will tell you how to invoke the Cholesky factorization so that it can permute the rows and columns of a sparse matrix.

(c) Conjugate gradients without a preconditioner (pcg in Matlab).

(d) Conjugate gradients with an incomplete-Cholesky factorization with no fill (ichol in Matlab).

4. Demonstrate that each of the solvers is correct. For the iterative solvers, explain their accuracy of the solution that they return and compare to the solution of the direct (Cholesky factorization) solvers. For the sparse solver, show the nonzero structure of the factor, to demonstrate that it is indeed sparse.

5. Compare the performance of the 4 solvers by finding out the size of the largest grid they can handle (in both 2D and 3D) in 10s (only the linear solver should take 10s; exclude the time to construct the test problem). You will need to write code that finds these problem sizes. You are free to also present the performance of the 4 solvers in other ways. Make sure your results are statistically robust; the

3

 

 

actual running times are not deterministic even if the algorithm is. You need not perform a statistical analysis, but you need to account for the running-times variability and to explain how do you did it. In this part of the problem, do your best to ensure that the solver is using only 1 CPU core (in Matlab, maxNumCompThreads(1) should work); explain how you restricted the solvers to 1 core and how you checked that they are indeed using only one.

6. Repeat Part 5, but with at as many cores as you can. Try to the speedups.

3 Efficient Multiplication of Sparse Matrices (20 Points) This problem investigates the efficient multiplication of sparse matrices represented using a compressed sparse column (CSC) representations. In this representation, the nonzero values of elements each column are stored consecutively in an array, and the row indices of these elements are stored in the same order in an integer array. These arrays need not be sorted in increasing row order. A third array points to the two arrays representing each column; this array represents the columns in increasing index order.

1. Given the CSC representation of two sparse matrices � ∈ R;×< and � ∈ R<×9, show how to create the CSC representation of the product �� in $(; + 9 + >) operations, where > is the number of arithmetic operations on nonzeros required to multiply the two matrices. Make sure you explain how to determine the size of each column in the product (that is, the size of the arrays that represent that column).

2. Given the CSC representation a sparse matrix � ∈ R;×<, show how to create the CSC representation of the product �) �. Try tomake this as efficient as possible and analyze the total number of operations that the multiplication requires in terms of ;, <, and >.

3. Suggest a mechanism to improve the efficiency of the solution of Part 1 in cases in which ; � >. That is, try to find a way to remove the dependence on ; from the running time.

4 A Tradeoff in the LLL Basis Reduction Algorithm (10 points) The !!! algorithm ensures that in the output matrix ‘ satisfies��’7,8�� ≤ 1

2 ��’7,7��

‘27,7 ≥ H’27−1,7−1 − ’27−1,7 .

for some 1/4 < H < 1. That is, the client code that calls LLL sets H to some value in this range. Explain the tradeoff: what happens when we set H just above 1/4? What happens when we set H just below 1?

4

June 23, 2025
June 23, 2025

Science Communicator Example

Your task is to find and share an example of a science or environmental communicator in action. This could be a video, podcast episode, article, social media post, or even a profile or biography of the communicator. Your example should show how they engage the public with science or environmental topics.

 Science Communicator Example

You may define “communicator” broadly—this could be a scientist giving a TED Talk, an activist on TikTok, a journalist writing about climate change, or a YouTuber explaining ocean pollution—as long as you can clearly explain why you think it fits.

 Science Communicator Example

Instructions:

  1. Find and provide a link to your chosen example.
  2. Write a short post (approx. 200 words) that includes:
    • (a) Any background or context needed to understand the example
    • (b) Why you selected it
    • (c) Who the target audience is
    • (d) Whether you think it is an effective or ineffective example of science/environment communication, and any suggestions for improvement

Examples:

  • Greta Thunberg speaking at the UN Climate Summit
  • An article from National Geographic about coral bleaching
  • A podcast episode from Ologies by Alie Ward

Requirements:

  • Length: Approximately 200 words
  • Be sure to proofread—grammar and spelling count!
  • Science Communicator Example
  • What is the example of science or environmental communication you’ve chosen?,

  • What background or context is needed to understand it?,

  • Why did you select this example?,

  • Who is the target audience?,

  • Is it effective or ineffective and how could it be improved?

  • Post (~200 words):
    In this short but impactful TED Talk, Joe Smith, a former attorney and environmental advocate, explains how to properly use a paper towel to reduce waste. The video, less than five minutes long, offers a simple message: most people overuse paper towels, and by using just one—correctly—you can help conserve millions of pounds of paper annually.

    I selected this talk because it’s a brilliant example of how small, everyday actions connect to broader environmental issues. Smith uses humor, props, and repetition (“shake and fold!”) to keep the audience engaged, making an often overlooked issue memorable. It’s a clear demonstration of effective science communication—delivering environmental information in a way that is accessible, actionable, and easy to remember.

    The target audience is the general public, especially those unaware of how small habits contribute to environmental problems. Because the talk is short, engaging, and practical, it is perfect for students, families, and office workers alike.

June 23, 2025
June 23, 2025

Disaster Risks in Dream Location

In the first discussion I asked you about the place you most wish to live. Over this semester we have learned about the many disasters that occur on our planet. In this paper you are to research what disasters could occur in the place you want to live. Usually, every location has one big disaster that will be the focus of your paper, but you should also include any other possible disasters. Determine what are the immediate dangers and the long-term dangers you will need to be prepared for. Once you know what the dangers are you can then prepare for them, so list your preparations to live happily in your most desired location.

Disaster Risks in Dream Location

Disaster Risks in Dream Location

· Brief description of the location you mentioned in your first discussion

· Biggest disaster and dangers

· All other possible disasters and dangers

· How to best prepare for the disaster

Grading

80% of your grade is on the content of your paper.

What you include, what you researched, what you say. All of this must be evident in your writing.

Be organized in your thoughts. The paper may not be long enough to follow the standard format of intro, body, and conclusion, but it still should not be all over the place.

This is a college level class and I expect your paper to be at the same level.

20% of your grade is based on spelling and grammar.

I expect you to write a college level paper and that includes more than content.

The greatest paper in the world is useless if no one can make sense of it.

I expect you to follow the rules of the English language.

Avoid using “I” unless necessary.

Write in complete sentences. Avoid run-on sentences.

Use proper spelling, no shorthand or texting patterns.

  • What is the location you most wish to live in?,

  • What is the biggest disaster threat in that location?,

  • What are the other possible disasters in that location?,

  • What are the immediate and long-term dangers of these disasters?,

  • How can you best prepare to live safely and happily there?

Disaster Risks in Dream Location

June 20, 2025
June 20, 2025

Capital Budgeting Analysis

create a PowerPoint presentation for a forecasting scenario for Deere & Company using the financial statements in this week’s Required Resources and two outside scholarly or credible sources.

John Deere. (n.d.). Investor relations: SEC filings Links to an external site. https://investor.deere.com/sec-filings/default.aspx. Download the quarterly reports (10Q)

Capital Budgeting Analysis

In your presentation, you must

· list the criteria used to evaluate how cash flows influence capital budgeting decisions,

· identify at least five criteria necessary for making a good capital budgeting recommendation, and

· explain the rationale for considering these criteria before making a recommendation.

The Capital Budgeting PowerPoint Presentation, must be eight to 10 slides in length (not including title and references slides) and formatted according to APA Style.

must include a separate title [page or slide] with the following in title case:

title of presentation in bold font

Space should appear between the title and the rest of the information on the title page.

student’s name

name of institution

course name and number

instructor’s name

Capital Budgeting Analysis

must utilize academic voice.

must use at least two outside scholarly or credible sources in addition to the course text.

 

  • What criteria are used to evaluate how cash flows influence capital budgeting decisions?,

  • What are five key criteria for making a good capital budgeting recommendation?,

  • Why is each criterion important to consider before making a recommendation?,

  • How should forecasting be approached for Deere & Company using their 10-Q statements?,

  • What academic sources support capital budgeting best practices?

Original work only. The paper will be checked by the institution for Plagiarism.

A screenshot of a document  AI-generated content may be incorrect.

Capital Budgeting Analysis

Slide 3: Criteria for Evaluating Cash Flows

  • Initial Outlay: Upfront investment required.

  • Net Cash Flows: Expected inflows/outflows from the project.

  • Terminal Value: Expected salvage value or final year cash flows.

  • Risk Adjustments: Accounting for uncertainties in projections.

  • Time Value of Money (TVM): Ensures proper present value calculations.
    (Ross et al., 2022)


Slide 4: Five Key Capital Budgeting Criteria

  1. Net Present Value (NPV) – Measures value creation.

  2. Internal Rate of Return (IRR) – Identifies profitability through return rate.

  3. Payback Period – Evaluates how fast investment is recovered.

  4. Profitability Index (PI) – Compares value created per dollar invested.

  5. Accounting Rate of Return (ARR) – Gauges efficiency via income-based return.


Slide 5: Rationale Behind Each Criterion

  • NPV: Accounts for TVM and directly measures added value.

  • IRR: Useful for comparing projects with similar scale.

  • Payback Period: Indicates liquidity risk and short-term recovery.

  • PI: Helps rank multiple projects under capital constraints.

  • ARR: Simple and based on accounting profits, used in preliminary analysis.
    (Brealey, Myers, & Allen, 2020)


Slide 6: Applying Capital Budgeting to Deere & Company

  • Analyzed 10-Q filings (Q1 2025) to identify investment opportunities.

  • Evaluated capital expenditure trends and earnings forecasts.

  • Focused on machinery segment expansion given strong