Physics for High School or first year of University

Von 23.61 Fr /Std

Physics and Mathematics can sometimes be hard to deal with. However, everyone can find a way to achieve good marks in these subjects, it is just a matter of discovering the fun in it. I offer dynamical classes but I also come with a load of patience to explain things as many times as necessary.

My way of teaching is to encourage a very deep understanding of the theory and then strengthen it with some problems. I hope I am the right teacher for you!

Ort

Online aus Dänemark

Alter

Kinder (7-12 Jahre alt)

Jugendliche (13-17 Jahre alt)

Erwachsene (18-64 Jahre alt)

Unterrichtsniveau

Mittel

Fortgeschritten

Dauer

60 Minuten

90 Minuten

120 Minuten

Unterrichtet in

Englisch

Spanisch

Fachkenntnisse

Physik

Programmierung

Verfügbarkeit einer typischen Woche

(GMT -05:00)

New York

Online via Webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Spanish lessons from a Spanish native teacher in Copenhagen

33.06 Fr /Std

I am from Spain and I can teach you at any level. We can design our lessons as you like; if you would like to just chat during the lessons, no problem with that! If you want to learn how to write, and read, also no problem with that. 100% adaptable. Write me if you need me!

Manoj

4.95

(21)

I am a Professional Full Stack Developer with over 15 years of hands-on experience in software engineering, system design, and artificial intelligence.
I’ve worked across frontend, backend, DevOps, and AI, building enterprise-grade systems for real-world applications — from large-scale microservices to cognitive AI platforms.

I’m passionate about teaching the real, modern way of coding — combining deep technical foundations with today’s most advanced technologies: Generative AI, Agentic systems, RAG architectures, cloud automation, and intelligent DevOps.

Whether you are a beginner exploring your first “Hello World,” a professional improving your stack, or a researcher/developer exploring AI systems, I can guide you step-by-step — conceptually, practically, and strategically.

🧩 What You Will Learn
🖥️ Front-End Development

Master how to build responsive, interactive, and high-performance interfaces:

HTML / HTML5 – Structure, semantics, forms, accessibility

CSS / CSS3 / SCSS – Layout, animations, responsive design, Flexbox, Grid

Bootstrap / Tailwind / Material UI – Rapid design frameworks

JavaScript (ES6+) – Functional programming, event loop, closures, async/await

TypeScript – Strong typing, interfaces, decorators, generics

React.js / Next.js – Components, hooks, state management, routing, APIs

Angular (1.x to 17) – Modules, dependency injection, RxJS, advanced architecture

Vue.js (optional) – Reactive programming, lifecycle management

jQuery / AJAX – Legacy support and backend communication

Web Performance – Lighthouse, Core Web Vitals, PWA, caching strategies

⚙️ Back-End & Enterprise Development

Build scalable, secure, and intelligent server-side systems:

C / C++ / Data Structures / Algorithms / OOPS

Java / J2EE / Spring / Spring Boot / Spring Cloud / Hibernate / Struts / Wicket

Microservices Architecture – API gateway, service registry, inter-service communication

Node.js / Express / NestJS – Modern JavaScript/TypeScript backend

REST & SOAP Web Services – API design, security, documentation (Swagger / Postman)

Python (Flask / FastAPI) – REST APIs, ML pipelines, automation

Shell Scripting (Linux/Unix) – Automation, cron jobs, log parsing, DevOps scripting

PHP / Laravel / CodeIgniter – Classic web backend development

Containerization & Orchestration: Docker, Kubernetes, Helm

CI/CD & Cloud: Jenkins, GitHub Actions, Azure DevOps Pipelines

☁️ Cloud & DevOps Mastery

Learn to build, deploy, and scale applications on the cloud:

AWS (EC2, S3, Lambda, DynamoDB, API Gateway, ECS)

Azure (App Services, Functions, CosmosDB, DevOps)

Google Cloud (GCP, Vertex AI, BigQuery, Cloud Run)

Monitoring & Logging: ELK Stack (Elasticsearch, Logstash, Kibana), Grafana, Prometheus

Infrastructure as Code (IaC): Terraform, AWS CDK, Azure Bicep

Version Control & Collaboration: Git, GitHub, GitLab, Bitbucket

CI/CD Pipelines: Build, test, deploy automation, rollback, release management

📱 App Development

Develop mobile and hybrid apps end-to-end:

Android (Java/Kotlin) – UI/UX, activity lifecycle, API integration

Hybrid Frameworks: Ionic, Cordova, React Native

Progressive Web Apps (PWA) – Offline-first, caching, mobile optimization

Firebase Integration: Auth, Firestore, Cloud Messaging

🤖 Artificial Intelligence & Machine Learning

Learn how modern AI systems are built and deployed:

AI Fundamentals: Neural networks, supervised/unsupervised learning

Machine Learning with Python: scikit-learn, TensorFlow, PyTorch

Natural Language Processing (NLP): Transformers, BERT, GPT

Computer Vision: OpenCV, YOLO, Image Classification

AI APIs & Integrations: Google DialogFlow, Azure Cognitive Services, OpenAI API

🧬 Generative AI, RAG & Agentic Systems

Special focus on real-world AI integration and automation:

Generative AI Models (GPT, Claude, Gemini, Llama, Mistral) – Practical implementation

Prompt Engineering – Designing powerful, reusable prompt frameworks

Retrieval-Augmented Generation (RAG) – Hybrid search + generation architectures

Agentic AI Systems – Building autonomous multi-agent workflows (e.g., AutoGPT, CrewAI)

Agentic RAG – Contextual memory, chaining, and reasoning systems

LangChain / LlamaIndex – RAG pipelines, document loaders, embeddings, vector DBs

Vector Databases: Pinecone, Chroma, Weaviate, FAISS

Knowledge Graphs & Context Management – Enterprise data linking with RAG

AI App Deployment: FastAPI + Streamlit + LangServe + Docker

Copilot & AI Tools: GitHub Copilot, ChatGPT API, Code Interpreter, Vertex AI Studio

Google AI Developer Kit (ADK) – Edge AI, TensorFlow Lite, Coral, and model serving

Voice AI & Conversational Design: Dialogflow CX, OpenAI Assistants, ElevenLabs

🔬 Data, Testing & Quality

Database Systems: MySQL, PostgreSQL, MongoDB, Oracle, DB2, Redis

Database Design: ERD, normalization, indexing, performance tuning

Testing Tools: JUnit, Mockito, Selenium, Cypress, Postman

TDD / BDD Practices: Unit, integration, and end-to-end testing

Logging & Monitoring: ELK, Splunk, Prometheus

Performance Optimization: Profiling, caching, concurrency

🧩 Operating Systems & Scripting

Windows / Linux / Ubuntu / Unix Administration

File Systems, Permissions, Networking, Process Management

Shell Scripting / Automation / Log Analysis

System Security and SSH Hardening

🧠 Bonus Topics

Mathematics for Programmers – Logic, combinatorics, probability, graph theory

Game Development Basics: Unity, Phaser.js, HTML5 Canvas

AI Ethics, Data Privacy, Responsible AI Design

Automation Projects & Web Crawling / Scraping: BeautifulSoup, Selenium, Puppeteer

No-Code / Low-Code Integrations: Zapier, Make, AI automations

Samia

4.95

(21)

Physics and chemistry are not difficult. It's a reasoning and logic to acquire. In case of difficulties React quickly so as not to allow the gaps to accumulate: with a little will remediation is always possible.

I am a principal teacher of physics chemistry with a long experience in teaching the French system and the Tunisian system which allowed me to devote myself to the regular follow-up of students in difficulty or wanting to excel.
I offer personalized tutoring according to the needs of the student to allow the student to remedy his shortcomings and acquire the right methodology + enrich his knowledge.
courses for all levels from high school to high school (different sections)
for each session I make sure that the student has assimilated the previous knowledge and revised his homework and then begins a new part of the course: explanation, summaries and exercises of applications. Before each test, we prepare different exams and I make sure that the student has assimilated all the knowledge.
In case of previous difficulties I make sure to remedy these shortcomings and catch up.
the schedules are flexible and the courses are personalized.
Thanks to the courses I teach, you will quickly see that physics and chemistry are not difficult. It is intellectual gymnastics, reasoning and logic to be acquired. React quickly in the event of difficulties so as not to allow the gaps to be added: remediation will be all the easier.
My mission is to help the learner j to take off his notes by overcoming his difficulties and in particular by gaining self-confidence.

Sarah

4.95

(21)

The Baccalaureate is the aim of an entire school curriculum and it is the most important step that must be prepared in advance, remedying its shortcomings and reviewing its bases to succeed in its exams.
It is necessary to react quickly in the event of difficulties not to let the gaps accumulate: the remediation is always possible.

INDIVIDUAL and PERSONALIZED private revision lessons online or at my location
are offered to students by a group of senior teachers from the French system who are experienced and benefit from excellent pedagogy which has proven itself.
ALL subjects are available each with a specialized teacher:
Mathematics, SVT, Physics Chemistry, French, English, History geography, Philosophy, German, Arabic (option), economics management finance marketing,...
With:
* remediation of deficiencies
* revision + summary of the basics
* series of exercises + applications
* practice exercises
* training in tests and exams
With varied supports and excellent teaching that has proven itself even with students in difficulty.
I can assure you that with will and a little seriousness the learner will be able to quickly improve their grades, remedy their shortcomings and gain the confidence necessary for the Baccalaureate.
Lessons are also available for all other levels.

Narayan

4.95

(21)

Mathematics course taught by an engineering graduate with over 14 years of teaching experience in mathematics up to the undergraduate level. I also have more than 9 years of experience in teaching and guiding standardized tests such as the GRE and SAT. I can help you learn these standardized courses (GRE, SAT, and even TOEFL) more effectively.

I offer mathematics lessons for various levels of students, including Bachelor students, IB (Math SL and Math HL) students, A-level students, European S6 and S7 level students, GCSE students, and IGCSE students.

I also provide science courses in Physics and Chemistry for students up to the European upper secondary level, as well as IB and A-level students. Additionally, I offer Biology lessons for students up to the European Secondary level, GCSE level, and IGCSE level.

Currently, I am teaching a diverse range of students, including:
- GCSE students
- IGCSE students
- IB students
- European School students
- AS/A-level students
- Lycée Vauban students
- Athénée de Luxembourg students

My current students are from the following schools:
National:
1. St Georges International School, Luxembourg, Edexcel (Pearson) Curriculum (10 students)
2. International School of Luxembourg, Luxembourg, IB Curriculum (6 Students)
3. Lycée Athénée de Luxembourg, Luxembourg, IB Curriculum (4 Students)
4. Lycée - International School Michel Lucius, Luxembourg, Cambridge Curriculum (6 Students)
5. European School Kirchberg, Luxembourg, European Curriculum (4 students)
6. Lycée Aline Mayrisch, Luxembourg, Luxembourgish curriculum (1 student)
7. Lënster Lycée International School, Luxembourg, European Curriculum (2 Students)

International:
8. International School of the Hague, Netherlands, IB Curriculum (1 student)
9. International School Of Nice, France, IB Curriculum (2 students)
10. Merchiston Castle School, Edinburgh, Scotland, Edexcel (Pearson)/Cambridge (1 students)
11. Silverline Private School, Limassol, Cyprus, UK national Curriculum (1 Student)
12. North Broward Preparatory School, Florida, USA, IB Curriculum (1 Student)
13. King Solomon School, Israel, IB Curriculum (1 student)
14. The European School of Bergen, The Netherlands, European Curriculum (1 student)

I also provide homework help for school students, and student progress can be assessed through periodic tests as per the requirements of parents or the students themselves.

Note:
Please note that while some of my students may have courses taught in French, German, or Swedish, my primary teaching language is English. As the subject is mathematics, it is generally easy to understand the task at hand, and I explain the answers in English.

Roman

4.95

(21)

Preparing for exams like the IGCSE, SAT, IB, or A-Levels can be challenging, but with the right guidance, you can achieve the grades you’ve always dreamed of. I’m here to support you every step of the way.

As a fully qualified high school science teacher with over 15 years of experience, I specialize in helping students master exam techniques, build a strong foundation in their subjects, and confidently tackle test questions. My teaching approach is tailored to each student's unique needs, ensuring they not only understand the material but also develop the skills to excel in any academic challenge.

Areas of Expertise:
-IB Higher Level: Chemistry and Biology
-IB Core Subjects: Chemistry, Physics, and Biology
-A & AS Levels: Chemistry, Physics, and Biology
-IGCSE: Coordinated Science, Physics, Chemistry, and Biology

I have successfully worked with students from diverse academic backgrounds, including those preparing for international curricula or overcoming difficulties in traditional schooling settings. Whether you’re aiming for top-tier grades or simply need guidance to improve your performance, I’m committed to helping you succeed.

Why Choose Me?
Extensive experience in international education and test preparation.
Proven track record of helping students achieve excellent results.
Personalized teaching strategies to suit your learning style.
Prompt communication—I’ll respond to your inquiry within hours.
Get Started Today!
Reach out with your requirements and preferred time slots, and I’ll be happy to create a customized plan just for you. Together, we’ll make your academic goals a reality.

Khalil

4.95

(21)

If you’ve ever felt that science and math are difficult, it’s probably because no one showed you how to think like a problem solver.
In my classes, you’ll learn not just formulas or code but how to truly understand concepts, apply them, and build strong logical intuition.

I teach:
• 🔢 Mathematics: From algebra and calculus to applied problem-solving for real-world use.
• 💻 Computer Science: Coding fundamentals (Python, C++), algorithms, and logical thinking for beginners and intermediate learners.
• ⚛️ Physics: Mechanics, thermodynamics, and practical examples that make abstract ideas simple and visual.

As a Software Engineer and Master’s student in Engineering at Nagoya University, I bring both academic knowledge and hands-on experience from real projects. My teaching approach is interactive, visual, and deeply focused on understanding over memorization.

Let’s turn complex problems into clear, step-by-step insights — and make learning something you genuinely enjoy.

Hasmik

4.95

(21)

I am a graduate in data science with R programming skills. I am able to help the students with assignments, and analysis with their master thesis. My approach is very student-oriented and I explain the subjects in a detailed way so that the students understand the main idea.

Baia

4.95

(21)

Are you ready to create interactive, visually appealing websites that stand out in today’s competitive market? In this course, you’ll master the essential front-end development skills:

✅ HTML, CSS, and JavaScript – Build responsive and modern web pages
✅ React & Vue.js – Learn cutting-edge frameworks for dynamic UIs
✅ Real-World Projects – Work on hands-on projects to strengthen your skills
✅ Problem-Solving & Creativity – Develop intuitive, user-friendly interfaces

🔹 Who is this course for?

- Beginners who want to break into web development
- Developers struggling with front-end concepts
- Anyone looking to level up their skills and build real projects

🚀 Stuck on a project? Want to learn high-income tech skills?
This course will help you gain confidence, land opportunities, and grow in the tech industry.

📩 Contact me for more details and start your front-end journey today!

Nadine

4.95

(21)

(for English description see below)
Hi there,
I offer tutoring for math and science subjects here.
Regardless of whether it's school, university or work - having to learn to pass a subject is neither fun nor much point, as you'll soon forget most of it.
But how can it be better?
I have experienced several times how much of success depends on the emotions associated with learning. That's why I'll try to create an environment in which you feel free to make mistakes - because mistakes are important for learning! I rely on understanding, patience and curiosity to develop a positive relationship with learning rather than applying pressure.

Following the neurobiologist Gerald Hüther, I see the art in setting just the right big challenges to be exciting but not frightening, so that you automatically develop joy in discovery.
I would be happy to have an introductory meeting in order to take your needs and wishes into account from the outset.
Background information about me:
I am a qualified engineer (mechanical engineering) with 3 years of work experience, as well as a master's degree in bionics (cross-sectional discipline between biology and engineering) and a PhD in environmental protection of mountain regions. I was active as a youth leader at the Alpine Club.
I have been giving tutoring lessons on the side ever since I was at school.
I am pleased to meet you.

Hello,
I offer tutoring for maths and science subjects.
Whether at school, university or work - learning to pass a subject is neither fun nor makes much sense, as you soon forget most of it.
But how can it be better?
I have learned many times how much success depends on the emotions associated with learning. That's why I try to create an environment in which you feel free to make mistakes - because mistakes are important for learning! I focus on understanding, patience and curiosity in order to develop a positive relationship with learning rather than exerting pressure.

Following the neurobiologist Gerald Hüther, I see the art in setting just the right amount of challenges to be exciting, but not frightening, so that you automatically develop the joy of discovery.
I would be happy to meet with you to discuss your needs and wishes from the outlet.
Background information about me:
I am a graduate engineer (mechanical engineering) with 3 years of work experience, as well as a master's degree in bionics (cross-sectional discipline between biology and engineering) and have a PhD in environmental protection of mountain regions. I was active in the Alpine Club as a youth leader.
I have been tutoring on the side since my own school days.
I look forward to getting to know you.

Abdallah

4.95

(21)

After Completing Our Course:
- High Earning Potential: Skilled programmers are in high demand, commanding competitive salaries across various industries.

- Versatile Career Opportunities: Open doors to careers in software development, data science, web development, game design, and more.

- Cutting-Edge Skills: Stay ahead in the fast-evolving tech landscape by mastering the most popular and widely used programming languages and frameworks.

- Innovation and Creativity: Enhance your ability to create innovative solutions, develop new technologies, and contribute to exciting projects.

- Problem-Solving Abilities: Strengthen your logical thinking and problem-solving skills, essential for tackling complex technical challenges.

- Career Advancement: Stand out in the job market with a robust programming skill set, increasing your chances of career advancement and promotions.

- Lifelong Learning: Cultivate a mindset of continuous improvement and lifelong learning, staying relevant and adaptable in your career.

**Programming and Coding Lessons for All Ages**

Unlock the world of coding with our comprehensive programming and coding lessons designed for both adults and kids. Whether you're a beginner or looking to enhance your skills, our courses cover a wide range of programming languages and technologies to suit your needs.

**Course Offerings:**
- **Python**: Learn the fundamentals of programming with one of the most versatile and popular languages.
- **HTML & CSS**: Build and style your own websites from scratch.
- **JavaScript**: Add interactivity to your web projects and enhance user experience.
- **MySQL**: Master database management and SQL queries.
- **Dart & Flutter**: Create beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.
- **C++**: Dive into the world of object-oriented programming and system-level coding.
- **C#**: Develop robust applications with this powerful language used in a variety of industries.

**Class Formats:**
- **Offline Classes in Egypt**: Join us in person for hands-on learning and direct interaction with our experienced instructors.
- **Online Classes**: Participate from anywhere in the world with our flexible online courses, designed to fit your schedule.

**Who Can Join?**
- **Adults**: Whether you're looking to start a new career, enhance your current skills, or simply explore a new hobby, our classes are perfect for you.
- **Kids**: Our engaging and interactive lessons make learning to code fun and accessible for younger students.

**Why Choose Us?**
- **Experienced Instructors**: Learn from industry professionals with years of teaching and real-world experience.
- **Comprehensive Curriculum**: Our courses are designed to provide a solid foundation and advanced knowledge in various programming languages.
- **Flexible Learning Options**: Choose between offline and online classes to suit your lifestyle and learning preferences.

Join us today and start your journey into the exciting world of programming and coding with the expert instructor Abdallah!

========================================
Comment:
Looking to master programming and become a skilled developer?
In this course, you will learn the basics and tools to manipulate coding and programming languages as well as using them to build machine learning models. We also provide assistance to students specializing in programming and database management using SQL
Under special request, we provide courses on other programming languages.
If you have any further questions, feel free to contact us.

Coding is a powerful general-purpose programming methods. It is used in web development, data science, software prototyping, etc. Fortunately for beginners, Coding has a simple and easy to use syntax. This makes Python a great language for learning programming for beginners.
In this course, you will learn the basics and tools for manipulating python as well as its use to build machine learning models. We also provide assistance to students specializing in python programming and database management using SQL
If you have any further questions, please do not hesitate to contact us.

Emilie

4.95

(21)

From June 24th, I offer you remedial classes, (possibility in a group) or in private to prepare you or your child for the start of the school year. (group rate can be modified for the price per student)
Currently, I am a student at the University of Liège in the faculty of medicine, I am 19 years old and I am very motivated and passionate about showing my students that science is not that annoying, and even.. c 'is amusing !
I also offer classes during the school year where you can focus on upcoming tests, homework to complete and understand, etc.
But here, I offer you a preparation for the coming year as well as a refresher course if necessary (since if you don't understand the basics, the rest will be even less easy).
(ps: I am bilingual, French and English, German/Luxembourgish courses understandable but explanations in French or English)

Georgio

4.95

(21)

FRENCH longer...

Dear parents, Dear students,

I am writing to express my enthusiasm and commitment to providing private tutoring services in mathematics, physics, chemistry, and science across various levels and educational systems. With a deep passion for these subjects and a dedicated approach to education, my goal is to inspire and guide students toward a deeper understanding and appreciation of these fundamental disciplines.

My long and extensive background in private tutoring has given me a deep understanding and skill in effectively imparting knowledge to students with diverse learning abilities.

Through my tutoring efforts, I strive not only to elucidate complex concepts but also to instill problem-solving skills, critical thinking, and a curiosity-driven approach to learning. I tailor my teaching methodologies to individual learning styles, ensuring that each student achieves a thorough mastery of the subject matter and gains confidence in their academic pursuits.

Additionally, my experience extends beyond classroom teaching. I believe in creating a stimulating environment where students feel empowered to ask questions, participate in discussions, and explore the wonders of science and mathematics.

My ultimate goal as a tutor is to inspire a genuine passion for these subjects while helping students achieve their academic goals. I am committed to providing comprehensive support, personalized guidance, and a rewarding educational experience to every student I work with.

I am confident that my dedication, expertise, and ability to inspire learning will make a significant difference in my students' educational journey. I look forward to the opportunity to contribute to the academic success of those I teach.

I am excited about the prospect of working with students and making a positive impact through private tutoring.

Regards,
Georgio

FRENCH

Dear parents, Dear students,

I am writing to express my enthusiasm and commitment to providing private tutoring services in mathematics, physics, chemistry, and science, spanning various levels and educational systems. With a deep passion for these subjects and a dedicated approach to education, my goal is to inspire and guide students toward a deep understanding and appreciation of these fundamental disciplines.

My long and extensive background in private tutoring has given me a deep understanding and mastery of effectively imparting knowledge to students with diverse learning abilities.

Through my tutoring efforts, I strive not only to explain complex concepts but also to instill problem-solving skills, critical thinking, and a curiosity-based approach to learning. I customize my teaching methods to match individual learning styles, ensuring that each student fully grasps the material and gains confidence in their studies.

Furthermore, my experience extends beyond classroom teaching. I believe in creating a caring environment where students feel encouraged to ask questions, participate in discussions, and explore the wonders of science and mathematics.

My ultimate goal as a tutor is to inspire a passion for these subjects while genuinely helping students achieve their academic goals. I am committed to providing comprehensive support, personalized guidance, and a rewarding educational experience to every student I work with.

I am confident that my dedication, expertise, and ability to inspire learning will make a significant difference in my students' educational journey. I look forward to contributing to the academic success of those I teach.

I am excited to work with students and make a positive difference through private tutoring.

Regards,
Georgio

Matias

4.95

(21)

Mathematics and Physics are foundational subjects that develop logical thinking, problem-solving skills, and a deep understanding of how the world works. However, students often feel overwhelmed by abstract concepts, formulas, and problem sets when they are not explained clearly or applied correctly.
I’ve designed this course as a practical and structured guide to Mathematics and Physics, specifically aimed at helping students truly understand the concepts rather than memorize formulas.

You’ll learn how to break down complex problems step by step, understand the reasoning behind formulas, apply mathematical tools to physical situations, and strengthen your analytical thinking through guided examples and practice exercises.

Saphira

4.95

(21)

As an MSc Astronomy student, I completed university-level courses in Calculus/Analysis and Linear Algebra during my Bachelor’s studies. Over the years, I’ve learned how to explain concepts in a way that feels clear and intuitive, not overwhelming. If you want to pass your course with more confidence, I can help by working directly with your syllabus, lecture notes, assignments, and past exams. Together, we’ll practice efficiently and focus on the types of problems that matter most.

How lessons usually work:
- We start with your level, goals, and what your lecturer expects
- I explain concepts step-by-step, then we practice together with similar exercises
- We’ll write short summaries and you'll get optional "homework" so you improve between sessions

Lessons are available online and in person if you’re nearby. Send me a message with your course name/topic and what you need help with, and I’ll suggest a plan for the first sessions.

Jammal

4.95

(21)

Hi, my name is Jammal and I give math and physics lessons for all school levels.
I'm an aerospace engineer and I'm training to be an airline pilot :)