• Professional Development
  • Medicine & Nursing
  • Arts & Crafts
  • Health & Wellbeing
  • Personal Development

99 Courses in Cardiff delivered Online

Computer Science with Python Course

4.5(3)

By Studyhub UK

Overview Dive into the dynamic world of computer science with our comprehensive 'Computer Science with Python Course'. Python, a versatile and widely used programming language, serves as the foundation for this course, offering learners a gateway into the intricate realm of computing. From installing Python and understanding its documentation to mastering advanced concepts like closures, classes, and data hiding, this course is meticulously designed to cater to beginners and those looking to deepen their knowledge. With a curriculum that's rich and varied, you'll be equipped with the skills to tackle real-world challenges, making you a sought-after asset in the ever-evolving tech industry. The course curriculum is structured to ensure a smooth learning curve. Starting with foundational topics such as command line usage, variables, and simple Python syntax, learners will gradually progress to more advanced subjects.  In the digital age, proficiency in a programming language like Python is invaluable. Whether you're aiming to kickstart a career in tech, enhance your current skill set, or simply satiate your curiosity, this course promises a transformative learning experience. With a blend of theoretical knowledge and its practical application, you'll be poised to make significant strides in the world of computer science. Learning Outcomes of Computer Science with Python Course: Understand Python's foundational concepts, including its installation, documentation, and basic syntax. Gain proficiency in working with various Python data types such as strings, lists, dictionaries, and tuples. Develop the ability to create and manipulate functions, including lambda functions, generators, and closures. Acquire skills in object-oriented programming with a focus on classes, inheritance, and data hiding. Implement advanced programming constructs and handle exceptions efficiently.   Video Playerhttps://studyhub.org.uk/wp-content/uploads/2020/01/Computer-Science-with-Python-Course-Introduction-Video-1.mp400:0000:0000:00Use Up/Down Arrow keys to increase or decrease volume. Why buy this Computer Science with Python Course? Digital Certificate, Transcript, student ID all included in the price Absolutely no hidden fees Directly receive CPD accredited qualifications after course completion Receive one to one assistance on every weekday from professionals Immediately receive the PDF certificate after passing Receive the original copies of your certificate and transcript on the next working day Easily learn the skills and knowledge from the comfort of your home Certification After studying the course materials of the Computer Science with Python Course you will be able to take the MCQ test that will assess your knowledge. After successfully passing the test you will be able to claim the pdf certificate for £5.99. Original Hard Copy certificates need to be ordered at an additional cost of £9.60. Who is this Computer Science with Python course for? Beginners eager to delve into the realm of computer science and programming. Individuals looking to add Python programming to their skill set. Tech enthusiasts keen on understanding advanced Python concepts. Students pursuing computer science and needing a comprehensive Python guide. Professionals in tech roles aiming to enhance their coding capabilities. Prerequisites This Computer Science with Python Course was made by professionals and it is compatible with all PC's, Mac's, tablets and smartphones. Career Path Python Developer: £45,000 - £70,000 Annually Data Scientist: £50,000 - £80,000 Annually Software Engineer: £40,000 - £75,000 Annually Backend Developer: £45,000 - £72,000 Annually Systems Analyst: £35,000 - £60,000 Annually DevOps Engineer: £50,000 - £85,000 Annually Course Curriculum Module 01 A Installing Python FREE 00:17:00 Documentation 00:30:00 Command Line 00:17:00 Variables 00:29:00 Simple Python Syntax 00:15:00 Keywords 00:18:00 Import Module 00:17:00 Module 02 Additional Topics 00:23:00 If Elif Else 00:31:00 Iterable 00:10:00 For 00:11:00 Loops 00:20:00 Execute 00:05:00 Exceptions 00:18:00 Module 03 Data Types 00:24:00 Number Types 00:28:00 More Number Types 00:13:00 Strings 00:20:00 More Strings 00:11:00 Files 00:08:00 Lists 00:15:00 Dictionaries 00:04:00 Tuples 00:07:00 Sets 00:09:00 Module 04 Comprehensions 00:10:00 Definitions 00:02:00 Functions 00:06:00 Default Arguments 00:06:00 Doc Strings 00:06:00 Variadic Functions 00:07:00 Factorial 00:07:00 Module 05 Function Objects 00:07:00 Lambda 00:11:00 Generators 00:06:00 Closures 00:10:00 Classes 00:09:00 Object Initialization 00:05:00 Class Static Members 00:07:00 Classic Inheritance 00:10:00 Data Hiding 00:07:00 Mock Exam Mock Exam - Python Developer 00:20:00 Final Exam Final Exam - Python Developer 00:20:00

Computer Science with Python Course
Delivered Online On Demand9 hours 16 minutes
£10.99

Fundamentals of CSS

By Compete High

🚀 Unlock the Power of Web Design with Fundamentals of CSS Course Are you ready to take your web design skills to new heights? Dive into the world of cascading style sheets (CSS) with our comprehensive course, Fundamentals of CSS. Whether you're a budding web developer, a seasoned programmer looking to enhance your skill set, or a creative individual eager to unleash your design potential, this course is your gateway to success in the digital realm.   Why CSS Matters: CSS is the backbone of modern web design, allowing developers and designers to control the layout, presentation, and overall aesthetics of websites. With CSS, you can transform static web pages into dynamic, visually stunning experiences that captivate and engage users. By mastering CSS fundamentals, you'll gain the ability to create responsive designs, implement animations, and optimize user interfaces for maximum impact.   What You'll Learn: In our Fundamentals of CSS course, you'll embark on a journey of discovery through key concepts such as selectors, properties, and values. You'll learn how to style text, manipulate images, and craft immersive layouts that adapt seamlessly to various screen sizes and devices. With hands-on exercises and real-world examples, you'll build a solid foundation in CSS that will empower you to tackle any design challenge with confidence.   Benefits of Taking This Course: 🎨 Unleash Your Creativity: Learn how to express your unique vision through custom styles and design elements. 🌐 Enhance Your Skill Set: Add valuable skills to your repertoire and stay ahead in today's competitive job market. 💼 Boost Your Career Prospects: Open doors to exciting opportunities in web development, UI/UX design, and beyond. 📈 Increase Your Marketability: Stand out to employers and clients with a portfolio showcasing your CSS proficiency. 👩‍💻 Join a Thriving Community: Connect with like-minded individuals and expand your network within the tech industry.   Who is This For? Our Fundamentals of CSS course is perfect for: Aspiring web developers eager to learn the building blocks of modern web design. Design enthusiasts looking to expand their skill set and create visually stunning websites. Programmers seeking to enhance their proficiency in front-end development technologies. No prior experience in web design or programming is required-all skill levels are welcome!   Career Path: Upon completing the Fundamentals of CSS course, you'll be well-equipped to pursue a variety of exciting career paths, including:   👨‍💻 Front-End Developer: Create captivating user experiences by translating design concepts into functional, responsive websites. 🎨 UI/UX Designer: Craft intuitive interfaces and optimize user interactions to deliver exceptional digital experiences. 💼 Freelance Designer: Showcase your CSS expertise to clients and build a thriving freelance business offering web design services. 🌐 Digital Marketing Specialist: Develop visually compelling websites and landing pages that drive conversions and engage audiences. Don't miss out on this opportunity to master the art of CSS and unlock a world of possibilities in web design and development. Enroll in our Fundamentals of CSS course today and take the first step towards transforming your creative vision into reality!   FAQs (Frequently Asked Questions) Is this course suitable for beginners? Absolutely! Our Fundamentals of CSS course is designed to cater to learners of all skill levels, including those who are completely new to web design and programming. We provide step-by-step guidance and clear explanations to ensure that even beginners can grasp the core concepts of CSS with ease. Do I need any special software or tools to participate in the course? No, you don't need any specialized software or tools to enroll in our course. All you need is a computer with internet access and a modern web browser. We'll provide you with everything you need to get started, including access to online resources, code editors, and practice exercises. How long does it take to complete the course? The duration of the course can vary depending on your individual learning pace and schedule. On average, most students complete the Fundamentals of CSS course within [insert average duration here] weeks. However, you're free to study at your own pace and can access the course materials at any time, allowing you to tailor your learning experience to fit your needs. Will I receive a certificate upon completing the course? Yes, upon successfully completing the Fundamentals of CSS course, you'll receive a certificate of completion to showcase your achievement. This certificate can be added to your resume, LinkedIn profile, or portfolio to demonstrate your proficiency in CSS fundamentals to potential employers or clients. Are there any prerequisites for this course? While there are no strict prerequisites for enrolling in the Fundamentals of CSS course, having a basic understanding of HTML would be beneficial. However, we cover essential HTML concepts as part of the course curriculum, so you can still succeed even if you're not familiar with HTML beforehand. Is there any instructor support available during the course? Yes, we provide dedicated instructor support to assist you throughout your learning journey. Whether you have questions about course material, need clarification on a concept, or require additional assistance, our team of experienced instructors is here to help. You can reach out to us via email, discussion forums, or live chat for personalized support and guidance. Can I access the course content after completing it? Yes, once you've completed the Fundamentals of CSS course, you'll have lifetime access to the course materials. This means you can revisit the lessons, review the concepts, and continue honing your CSS skills whenever you like, even after completing the course. We hope these FAQs have addressed any concerns you may have had about our Fundamentals of CSS course. If you have any further questions or would like more information, feel free to reach out to our support team-we're here to help you succeed! Course Curriculum Chapter 1_ Introduction To CSS Chapter 1_ Introduction To CSS 00:00 Chapter 2_ Element Properties Chapter 2_ Element Properties 00:00 Chapter 3_ Colours Chapter 3_ Colours 00:00

Fundamentals of CSS
Delivered Online On Demand3 hours
£4.99

Diploma in Genealogy

By Compete High

🚀 Unlock the Secrets of Flawless Software with Our Software Testing Course! Are you ready to embark on a journey that will revolutionize the way you approach software development? Look no further! Our cutting-edge Software Testing course is designed to equip you with the essential skills and knowledge needed to become a master in the art of testing software applications. 🎯   🔍 Why Software Testing Matters In today's fast-paced digital world, software plays a crucial role in every aspect of our lives. From mobile apps to web applications, the demand for seamless, bug-free software is higher than ever before. However, achieving perfection in software development is no easy feat. This is where software testing comes into play. Software testing is the process of evaluating a software application to uncover bugs, errors, or any other potential issues before it is released to the market. By meticulously testing software, developers can ensure that it meets the highest standards of quality, functionality, and reliability. 💡 Our Software Testing course dives deep into the various testing techniques, methodologies, and best practices that are essential for ensuring the success of any software project. Whether you're a seasoned developer looking to enhance your skill set or a newcomer to the world of software development, this course is your gateway to success. 🌟   🛠️ What You'll Learn Throughout this comprehensive course, you'll gain hands-on experience with a wide range of software testing concepts and tools. From manual testing to automated testing, you'll explore the different approaches used to identify and eliminate bugs in software applications. Additionally, you'll learn about test planning, execution, and reporting techniques that are crucial for effective software testing. By the end of the course, you'll be equipped with the knowledge and skills needed to: Understand the fundamentals of software testing Identify different types of software defects Create and execute test cases Utilize various testing tools and frameworks Implement effective testing strategies Analyze test results and generate reports With our expert-led training and hands-on exercises, you'll be well-prepared to tackle any software testing challenge that comes your way. 🚀   👩‍💼 Who is this for? Our Software Testing course is perfect for: Software developers looking to enhance their testing skills Quality assurance professionals seeking to deepen their understanding of software testing IT professionals interested in transitioning into the field of software testing Students and beginners eager to kickstart their career in software development No matter your background or experience level, this course provides a solid foundation for mastering the art of software testing and advancing your career in the tech industry. 🌐   🚀 Career Path Upon completing our Software Testing course, you'll be well-positioned to pursue a variety of exciting career opportunities in the software development and quality assurance fields. Some potential career paths include: Software Tester Quality Assurance Engineer Test Automation Engineer Software Developer (with specialized testing skills) Test Manager Quality Assurance Manager   With the ever-increasing demand for skilled software testers in today's job market, completing this course will open up a world of possibilities for career advancement and professional growth. 🌟 Don't miss out on this incredible opportunity to take your software testing skills to the next level! Enroll in our Software Testing course today and unlock the secrets to building flawless software that delights users and exceeds expectations. 💻🔍   FAQ (Frequently Asked Questions) about Genealogy Q1: What is genealogy? Genealogy is the study of family history and descent. It involves tracing ancestry and lineage through historical records, oral traditions, genetic analysis, and other sources to create a comprehensive family tree. Genealogy allows individuals to understand their familial connections, cultural heritage, and ancestral roots. Q2: Why is genealogy important? Genealogy is important for several reasons. Firstly, it helps individuals develop a deeper understanding of their identity and belonging by uncovering their familial history. It allows people to connect with their ancestors, understand their struggles, achievements, and cultural traditions. Genealogy also helps in preserving family stories and traditions for future generations. Additionally, it can provide valuable insights into medical history and genetic predispositions, aiding in personalized healthcare decisions. Q3: How can I start researching my family history? Starting your genealogical research can be exciting yet daunting. Begin by gathering information from living relatives, such as names, dates, and places of birth, marriage, and death. Organize this information systematically and then proceed to explore online databases, historical records, and archives. Utilize genealogical software or websites to build and maintain your family tree. Joining genealogical societies or online forums can also provide guidance, resources, and support from experienced researchers. Q4: What challenges might I encounter in genealogical research? Genealogical research often comes with various challenges. Common obstacles include incomplete or inaccurate records, surname changes, language barriers, and geographical relocations. Additionally, the availability of historical records may vary depending on factors such as time period, location, and societal norms. Genetic genealogy can also present challenges such as privacy concerns and the interpretation of DNA test results. Overcoming these challenges requires patience, perseverance, critical thinking, and creativity in research strategies. Q5: How can I verify the accuracy of my genealogical findings? Verifying the accuracy of genealogical findings is essential to ensure the reliability of your family tree. Cross-referencing multiple sources, including primary documents, official records, oral histories, and genetic evidence, can help confirm information. It's important to critically evaluate the credibility and reliability of each source, considering factors such as the author's expertise, biases, and the context in which the information was recorded. Collaborating with other researchers and seeking professional assistance when needed can also contribute to the accuracy of your genealogical research. Course Curriculum Chapter 1 Why Explore Your Past Why Explore Your Past 00:00 Chapter 2 The Search For Answers The Search For Answers 00:00 Chapter 3 Modern Methods of Researching Your Past Modern Methods of Researching Your Past 00:00 Chapter 4 Where to Start Searching Where to Start Searching 00:00 Chapter 5 Search of Records Search of Records 00:00 Chapter 6 Conclusion Conclusion 00:00

Diploma in Genealogy
Delivered Online On Demand8 hours
£4.99

Becoming a Cloud Expert - Microsoft Azure IaaS - Level 1

By Packt

Plan, deploy and monitor cloud solutions in Microsoft Azure's Infrastructure as a Service

Becoming a Cloud Expert - Microsoft Azure IaaS - Level 1
Delivered Online On Demand5 hours 13 minutes
£135.99

Diploma in Computer Science and Programming at QLS Level 5

4.8(9)

By Skill Up

Level 5 QLS Endorsed Diploma | 150 CPD Points | +Gifts: QLS Certificate + PDF Certificate | 24/7 Learner Support

Diploma in Computer Science and Programming at QLS Level 5
Delivered Online On Demand14 days
£100

Software Testing

By Compete High

🚀 Unlock the Power of Quality Assurance with Our Software Testing Course! 🚀 Are you ready to take your career in the tech industry to new heights? Dive into the world of software testing and equip yourself with the essential skills needed to ensure top-notch quality in every digital product! Our comprehensive Software Testing course is your gateway to mastering the art of detecting bugs, ensuring functionality, and delivering seamless user experiences.   Why Software Testing Matters? In today's fast-paced digital landscape, flawless software performance is non-negotiable. Every glitch, bug, or malfunction can cost a company its reputation, customers, and revenue. That's where software testing comes into play. By meticulously examining code, analyzing system functionalities, and running rigorous tests, software testers play a crucial role in identifying and rectifying issues before they escalate.   Benefits of Our Software Testing Course Stay Ahead of the Curve: In an industry that's constantly evolving, staying stagnant is not an option. Our course provides you with the latest techniques, tools, and methodologies in software testing, ensuring you're always ahead of the curve. Enhance Product Quality: Become the guardian of quality by learning how to conduct thorough tests that identify even the most elusive bugs. With your expertise, you'll contribute to the creation of robust, reliable software that delights users. Boost Employability: Employers are constantly on the lookout for skilled software testers who can ensure their products meet the highest standards. By completing our course, you'll enhance your employability and open doors to exciting career opportunities. Save Time and Resources: Catching bugs early in the development process saves both time and resources. Our course teaches you how to implement efficient testing strategies, helping companies streamline their workflows and minimize costly rework. Earn Recognition and Respect: As a proficient software tester, you'll earn the respect of your peers and recognition from industry leaders. Your ability to deliver flawless software solutions will position you as a valuable asset in any organization.   Who is This For? Our Software Testing course is perfect for: Aspiring QA Engineers Software Developers looking to expand their skillset IT Professionals interested in quality assurance Students pursuing a career in technology Anyone passionate about ensuring top-notch software quality No matter your background or experience level, if you're eager to dive into the world of software testing, this course is for you!   Career Path Upon completing our Software Testing course, you'll be well-equipped to pursue a variety of exciting career paths, including: Quality Assurance Engineer: As a QA engineer, you'll be responsible for ensuring that software products meet the highest quality standards. You'll design and execute tests, identify defects, and collaborate with developers to resolve issues. Test Automation Engineer: Automation is becoming increasingly essential in software testing. As a test automation engineer, you'll leverage tools and scripts to automate repetitive testing tasks, improving efficiency and accuracy. Software Development Engineer in Test (SDET): SDETs combine development and testing skills to create robust testing frameworks and tools. They play a crucial role in ensuring the reliability and scalability of software systems. Quality Assurance Manager: With experience and expertise, you could advance to a managerial role overseeing QA teams and processes. Quality assurance managers are responsible for setting testing standards, optimizing workflows, and ensuring the overall quality of deliverables.   Don't Miss Out on This Opportunity! Are you ready to embark on an exciting journey into the world of software testing? Enroll in our Software Testing course today and unlock the door to a rewarding career in quality assurance. Join thousands of satisfied students who have transformed their careers with our comprehensive training program. Don't wait - secure your future in tech today!   FAQ (Frequently Asked Questions) - Software Testing Q1: What is software testing, and why is it important? Software testing is the process of evaluating a software application or system to ensure that it meets specified requirements and works as expected. It involves executing a program or system with the intent of finding errors or bugs and verifying that the software meets its quality and performance objectives. Testing is crucial for several reasons: It helps identify and fix defects or bugs early in the development process, reducing the cost of fixing issues later. It ensures that the software meets user requirements and expectations, enhancing user satisfaction. Testing improves the reliability, usability, and performance of software applications, thereby increasing their overall quality. It helps build confidence in the software's correctness and functionality, leading to better adoption and success in the market. Q2: What are the different types of software testing? There are various types of software testing, each serving different purposes and objectives: Unit Testing: Tests individual components or modules to ensure they function correctly in isolation. Integration Testing: Verifies that multiple components work together as expected when integrated. System Testing: Evaluates the entire system's functionality and performance in the context of the intended environment. Acceptance Testing: Validates that the software meets user requirements and is ready for deployment. Regression Testing: Ensures that changes or updates to the software do not adversely affect existing functionality. Performance Testing: Evaluates the software's responsiveness, scalability, and stability under different workload conditions. Security Testing: Identifies vulnerabilities and weaknesses in the software to prevent unauthorized access or data breaches. Q3: When should testing be performed in the software development lifecycle? Testing should be integrated into the software development lifecycle from the early stages and conducted iteratively throughout the process. Ideally, testing starts as soon as individual components or modules are developed and continues through integration, system development, and acceptance testing phases. Iterative testing allows for early detection and resolution of issues, reducing the risk of defects accumulating and impacting the final product. Q4: What are some common challenges in software testing? Incomplete or unclear requirements: Lack of clear specifications can make it challenging to determine what to test. Time and resource constraints: Limited time and resources may restrict the extent of testing that can be performed. Changing requirements: Frequent changes in requirements can lead to scope creep and require retesting. Complexity of software: Testing complex systems with intricate dependencies can be challenging and time-consuming. Test environment setup: Creating and maintaining test environments that mimic production can be complex and costly. Effective communication: Ensuring clear communication among stakeholders, developers, and testers is essential for successful testing. Course Curriculum Module 1 Introduction to Software Engineering Introduction to Software Engineering 00:00 Module 2 Software Design Principles and Testing Software Design Principles and Testing 00:00 Module 3 Software Maintenance and Evolution Software Maintenance and Evolution 00:00 Module 4 Software Project Management Software Project Management 00:00 Module 5 Software Configuration Management Software Configuration Management 00:00 Module 6 Software Project Metrics and Measurement Software Project Metrics and Measurement 00:00

Software Testing
Delivered Online On Demand6 hours
£4.99

Crazy about Arduino: Your End-to-End Workshop - Level 2

By Packt

Learn to build a complete Arduino project using a keypad, LCD, ultrasonic sensor, LDR sensor, and a buzzer

Crazy about Arduino: Your End-to-End Workshop - Level 2
Delivered Online On Demand2 hours 33 minutes
£101.99

Master SQL for Data Analysis

By Packt

This complete training program comprising levels 1 and 2 is divided into multi-sequential sections to let you gain comprehensive knowledge and understanding of SQL and data analysis. This two-level course is designed to kickstart your SQL knowledge and perform various data analysis tasks and implement SQL in projects independently and efficiently.

Master SQL for Data Analysis
Delivered Online On Demand3 hours 54 minutes
£82.99

Website Development & Computer Programming: 20-in-1 Premium Online Courses Bundle

By Compete High

Break into the booming tech industry with the Website Development & Computer Programming bundle. This powerhouse training collection equips you with the programming, web design, and digital marketing skills employers across IT, software development, and freelance sectors are hunting for. Become a hireable, versatile professional ready to tackle today’s digital challenges. Description In an ever-evolving tech landscape, employers want developers who can not only code but also manage projects, communicate effectively, and market products. This bundle combines essential programming languages with website development, cybersecurity basics, and crucial soft skills — all in one place. Whether your dream job is in a startup, tech giant, or as a freelancer, this training prepares you to meet diverse industry demands. From backend databases to frontend design and digital outreach, you’ll gain the skills that turn opportunities into job offers. Offered at an unbeatable value, this bundle puts you on the fast track to tech career success. Don’t let the digital future pass you by — get qualified, get hired. FAQ Who should take this bundle? Aspiring developers, web designers, IT professionals, and freelancers. Which industries does it target? Software development, IT services, digital marketing, startups, and freelance tech. Do I need previous coding experience? No, suitable for beginners and those expanding their skillset. Are certificates included? Yes, certificates for all completed courses. Can I learn at my own pace? Yes, with flexible, fully online access. Why act now? Tech jobs are rapidly growing — secure your place with versatile, job-ready skills.

Website Development & Computer Programming: 20-in-1 Premium Online Courses Bundle
Delivered Online On Demand4 hours
£49.99

Software Engineering: 20-in-1 Premium Online Courses Bundle

By Compete High

Looking to break into one of the most future-proof careers of the century? This 20-in-1 Software Engineering bundle is crafted to help you become job-ready with a blend of technical expertise and professional workplace skills—no fluff, just focus. Description The tech industry doesn’t wait for anyone. Employers are scanning CVs for adaptable, multi-skilled individuals who can build, communicate, and lead in digital environments. This Software Engineering bundle delivers exactly that, combining coding proficiency, team leadership, and project coordination to give you a sharp edge. Whether your goal is to secure a junior dev role, contribute to DevOps pipelines, or move into tech project coordination, this bundle gives you the foundational competence companies actually look for. It’s especially relevant for roles in software houses, fintech, healthtech, AI startups, and consultancy firms where multi-skill fluency is a must. With 20 purpose-built courses bundled together, the cost-per-skill is unbeatable. And in a hiring landscape where every vacancy attracts dozens of applicants, this bundle ensures your CV lands in the shortlist pile—not the bin. Don’t wait until someone else grabs your opportunity. FAQ Q: Who should take this bundle? A: Anyone seeking roles in software development, quality assurance, DevOps, or product teams. Q: Does this bundle include workplace skills too? A: Yes, and that’s the advantage—it builds both tech and communication leadership. Q: How does this help me get hired? A: It aligns your skills with what tech companies are hiring for: versatility, collaboration, and digital fluency. Q: Can I use this for freelance or remote work? A: Absolutely—many skills here are ideal for tech freelancers and remote workers. Q: What types of employers value this? A: Startups, SaaS companies, IT consultancies, and any tech-driven business.

Software Engineering: 20-in-1 Premium Online Courses Bundle
Delivered Online On Demand4 hours
£49.99