Courses

Explore how Ireland is combating COVID-19 through testing and contact tracing in this 16-minute conference talk by Gar Mac Críosta, HSE Lead for the Covid Tracker App. Delve into the challenges faced, technologies employed, and the team's approach to developing the app. Learn about the influence of Singapore's model, the use of Bluetooth technology, and the debate between centralized and decentralized systems. Examine the tradeoffs made, efforts towards transparency, and issues encountered with Bluetooth. Discover the implementation of Google Apple Exposure Notification, Amazon's assistance, and the interoperability architecture. Gain insights into government transformation, app integration, usage statistics, and privacy considerations. Conclude with a look at future steps and a lighthearted reference to a satirical newspaper.

Explore the concept of trace-based testing and its adoption by OpenTelemetry in this insightful conference talk. Delve into the advantages of using traces for testing purposes and understand why OpenTelemetry has embraced this approach. Learn about the power of traces in enhancing observability, debugging, and performance optimization in cloud-native applications. Gain valuable insights into how trace-based testing can improve the reliability and efficiency of distributed systems. Discover practical examples and best practices for implementing trace-based testing in your own projects using OpenTelemetry's framework.

Explore the critical topic of contact tracing in this 43-minute video presentation from TheIACR. Gain insights into the methods, challenges, and importance of tracking and managing the spread of infectious diseases through effective contact tracing strategies. Learn about the role of technology, privacy considerations, and best practices in implementing successful contact tracing programs to mitigate public health risks and control outbreaks.

Gain real skills with our powerful network simulation tool where you practice networking, IoT, and cybersecurity skills in a virtual lab – no hardware needed! Download Packet Tracer when you enroll in one of the three self-paced Packet Tracer Courses. Introduction Who uses Packet Tracer? Learners exploring networking and tech careers Networking, IoT, and cybersecurity students Engineers, educators, and trainers Distance teaching and learning Use it to Practice building simple and complex networks Visualize how a network works Practice rack, stack, and cabling skills in the virtual lab Integrate IoT devices, Python code, or network automation Download for Free Simply enroll in one of our introductory courses below to download the latest version of Packet Tracer. Community Collaborate and compete within Packet Tracer Share network designs for feedback Connect with our global Facebook community to share ideas and get inspiration Download and Get Started Cisco Packet Tracer is a powerful tool. Let us help you get started. Select the course that’s right for you to learn valuable tips and best practices and download the latest version of Packet Tracer for free.

Explore a 53-minute lecture from Stanford University's Professor Yakov Eliashberg examining recent developments in contact convexity and their implications for Stein fillings of contact manifolds. Delve into groundbreaking research by Honda-Huang, Pancholi, Chaidez, and Eliashberg that reveals an unexpectedly large number of Stein fillings in contact manifolds. Learn about the fundamental constructions behind these discoveries and engage with current open problems in the field of symplectic geometry and contact manifolds.

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Dive into an in-depth exploration of full contact reconnaissance techniques with int0x80 of Dual Core in this 45-minute conference talk from Derbycon 7 (2017). Gain valuable insights into advanced methods for gathering intelligence and conducting thorough investigations. Learn from a seasoned expert as they share their experiences and strategies for effective reconnaissance in the cybersecurity field.

Learn about contact angle hysteresis in this 46-minute lecture from NPTEL-NOC IITM. Explore the fundamental concepts of how liquids interact with solid surfaces, including advancing and receding contact angles, the causes of hysteresis, and its implications for wetting behavior. Understand how surface roughness, chemical heterogeneity, and other factors contribute to contact angle hysteresis and how this phenomenon affects applications in materials science, microfluidics, and surface engineering.

Explore the future of real-time Linux analysis tools in this 21-minute conference talk from the Linux Plumbers Conference. Delve into the limitations and potential improvements for the RTLA suite, which relies on kernel tracing infrastructure. Discover proposed enhancements for both kernel and library components, including the ability to create histograms with ftrace events, enable multiple tracers simultaneously, and record trace-cmd.dat files. Learn about plans for user-space support in osnoise, the development of an execution time tracer, and the integration of tracers with perf counters. Gain insights into how these advancements could significantly improve the functionality and performance of real-time Linux analysis tools.

Watch a mathematics seminar lecture exploring the intersection of contact topology with equilibrium and non-equilibrium thermodynamics. Delve into advanced mathematical concepts as Professor Leonid Polterovich from Tel Aviv University and University of Chicago presents findings from joint research with Michael Entov and Lenya Ryzhik. The 71-minute presentation, delivered at the Institute for Advanced Study's Symplectic Geometry Seminar, examines how fundamental principles and results from contact topology manifest in thermodynamic systems.

Explore the psychological aspects of stock trading through an extensive series of lectures and discussions. Delve into common pitfalls, successful trader habits, and strategies for maintaining a healthy mindset in the fast-paced world of day trading. Learn how to overcome fear, avoid self-destructive behaviors, and develop the mental fortitude necessary for long-term success in the stock market. Gain insights into trader psychology, risk management, and the importance of patience and persistence. Examine real-world case studies, trading results, and personal experiences to better understand the emotional challenges faced by both novice and experienced traders. Discover techniques for building wealth, avoiding common mistakes, and developing a disciplined approach to trading. Address topics such as confirmation bias, the Dunning-Kruger effect, and the psychology of winning and losing streaks. Acquire valuable knowledge on how to approach learning, set realistic goals, and maintain a balanced perspective in the face of market volatility.

The COVID-19 crisis has created an unprecedented need for contact tracing across the country, requiring thousands of people to learn key skills quickly. The job qualifications for contact tracing positions differ throughout the country and the world, with some new positions open to individuals with a high school diploma or equivalent. In this introductory course, students will learn about the science of SARS-CoV-2 , including the infectious period, the clinical presentation of COVID-19, and the evidence for how SARS-CoV-2 is transmitted from person-to-person and why contact tracing can be such an effective public health intervention. Students will learn about how contact tracing is done, including how to build rapport with cases, identify their contacts, and support both cases and their contacts to stop transmission in their communities. The course will also cover several important ethical considerations around contact tracing, isolation, and quarantine. Finally, the course will identify some of the most common barriers to contact tracing efforts -- along with strategies to overcome them.

Explore contact aspects of non-equilibrium thermodynamics in this 59-minute conference talk recorded at the Centre International de Rencontres Mathématiques in Marseille, France. Delve into results and conjectures presented by Leonid Polterovich, drawing from collaborative work with Michael Entov, Shin-itiro Goto, Shai Lerer, and Lenya Ryzhik. Recorded during the thematic meeting "From smooth to C⁰ symplectic geometry: topological aspects and dynamical implications," this talk offers insights into the intersection of contact topology and thermodynamics. Access this video and other mathematical presentations through CIRM's Audiovisual Mathematics Library, featuring chapter markers, keywords, abstracts, bibliographies, and Mathematics Subject Classification for enhanced navigation and comprehension.

This conference talk explores innovative approaches to DeFi security through proactive threat prevention mechanisms. Learn how to leverage the time gap between transaction broadcasting and confirmation to counter smart contract exploits. The presentation introduces IRONDOME, a system that reconstructs attack contracts to front-run malicious transactions, effectively turning attackers' methods against them. Discover how this approach has successfully blocked 78 DeFi attack incidents, including 31 with anti-front-running strategies, and saved over $10 million in user assets across Ethereum and BNB chains. Professor Yajin Zhou, CEO of BlockSec, demonstrates practical techniques for protecting decentralized finance protocols beyond traditional code audits, offering a new defensive paradigm for blockchain security professionals.

Learn essential networking concepts and skills using Cisco Packet Tracer in this comprehensive tutorial. Explore router operating systems, master basic networking commands, and gain hands-on experience with router configuration. Understand the Address Resolution Protocol (ARP) and simulate communication between PCs. Dive into connectivity simulations and analyze protocol graphs to deepen your understanding of network operations. By the end of this 90-minute session, you'll have practical knowledge of fundamental networking principles and be proficient in using Cisco Packet Tracer for network design and troubleshooting.

Explore the complexities of digital contact tracing in this panel discussion from USENIX Security '20. Delve into the security, privacy, ethical, and legal challenges posed by large-scale tracing infrastructure deployed to combat the COVID-19 pandemic. Learn from experts as they share insights on building and analyzing digital contact tracing systems, including the implementation of support within Android and iOS by Google and Apple. Gain a comprehensive understanding of how this technology aims to trace and quarantine contacts of virus-positive individuals, its potential impact on controlling the outbreak, and the critical considerations surrounding its widespread adoption.

With Amazon Connect Contact Lens, organizations analyze customer conversations, evaluate agent performance, and continuously improve customer experience. In this course, you will recognize the benefits, typical use cases, and core concepts of Contact Lens. You will explore implementation scenarios and identify the key considerations to uncover trends, sentiment, and conversation characteristics from contact interactions. You will learn how post-contact summaries are used to replace manual note-taking so supervisors can review interactions efficiently. Course level: Foundational Duration: 55 minutes Activities This course includes interactions and assessments. Course Objectives In this course, you will: Recognize the purpose and functionality of Contact Lens Identify the benefits of Contact Lens Recognize considerations for using Contact Lens Intended audience This course is intended for: Contact center professionals, including those in roles such as contact center engineers, technologists, implementation consultants, and interactive voice response (IVR) designers Prerequisites None Course outline Section 1: Contact Lens Introduction to Contact Lens Contact Lens Advanced Functionality Using Contact Lens Considerations Section 2: Conclusion Summary Section 3: Knowledge Check Questions Knowledge Check Section 4: Getting Help Learn More Contact Us

With Amazon Connect Contact Lens, organizations analyze customer conversations, evaluate agent performance, and continuously improve customer experience. In this course, you will recognize the benefits, typical use cases, and core concepts of Contact Lens. You will explore implementation scenarios and identify the key considerations to uncover trends, sentiment, and conversation characteristics from contact interactions. You will learn how post-contact summaries are used to replace manual notetaking so supervisors can review interactions efficiently.

Explore the fascinating field of language contact modeling in this 22-minute lecture from the Instituto de Física Interdisciplinar y Sistemas Complejos (IFISC). Delve into the complex dynamics of how languages interact and influence each other, focusing on the role of preferences in shaping linguistic outcomes. Gain insights into the interdisciplinary approach that combines linguistics, physics, and complex systems to understand and predict language evolution in multilingual societies. Discover how mathematical models and computational simulations can shed light on the factors driving language change, preservation, and extinction in diverse linguistic landscapes.

Explore the fascinating implications of potential alien contact in this thought-provoking panel discussion from the World Science Festival. Delve into the search for extraterrestrial intelligence, the challenges of interspecies communication, and the societal impact of discovering alien life. Learn about cutting-edge technologies used in the search, the possibility of interpreting alien signals, and the potential consequences of first contact. Examine the parallels between communicating with dolphins and deciphering alien languages, and consider how artificial intelligence might aid in the search. Reflect on humanity's place in the universe and the philosophical questions raised by the possibility of being alone or part of a cosmic community.