Article on when i meet a great writertrabajos

I need a Node.js developer with expertise in transitioning a fully operating monolithic application to a microservices architecture using Kafka, Redis Server, and Openshift. A successful migration will preserve current functionalities including: - User profile management - Transactions processing - Content management The deadline is paramount, thus a professional with great time management skills is ideal. Prior experience in similar projects is highly desirable. Your expertise will ensure a seamless transition with zero interference to the current users.

I am in need of a skilled animator to design eye-catching 3D animations for my brand. These animations will serve as advertisements, targeting a general audience. Key Requirements: - Designing animations focused on enhancing brand visibility and engagement - Crafting 3D animations of high quality to ensure they are appealing and memorable - Ensuring the animations are suitable for a general audience, meaning they must be engaging and universally relatable Ideal Skills and Experience: - Proficiency in 3D animation, with a strong portfolio of past work to showcase - Prior experience in creating animations for advertisement purposes, with a proven track record of successful campaigns - A deep understanding of the target audience to cra...

I'm running a digital marketing website and I'm looking for a skilled content writer. The main aim of the website is to drive website traffic, primarily from marketing professionals. Key deliverables for this project include: - Crafting SEO-optimized case studies that showcase successful projects or campaigns our company has executed - Writing engaging service descriptions that clearly outline what we offer and why our services are valuable to our target audience The ideal candidate should have: - Proven experience in content writing for digital marketing - A good understanding of SEO and how to craft content that drives traffic - The ability to create compelling case studies that highlight the value of our services - A strong knowledge of mar...

I am in need of a proficient Telugu writer to work on a forthcoming project. This project involves creating engaging and informative content on Education-related topics. Responsibilities include: - Writing clear, informative, and engaging Telugu content for an educational project - - Maintaining accuracy while producing quality content, adhering to the given guidelines Ideal Skills and Experience: - Proficiency in Reading and Writing Telugu - Proven experience in writing educational or informative content - Excellent writing skills, including proper grammar, spelling, and punctuation - In-depth understanding of Telugu language nuances - Familiarity with education-related topics is a plus.

Hello, 

I am seeking a highly skilled freelancer to assist me in launching an FBA (Fulfillment by Amazon) business targeting Emirati customers. I require comprehensive assistance to ensure the perfection of the business from start to finish.

Scope of Work:

 1. Research and Identify 20 Special Gadgets: Conduct thorough market research to identify unique gadgets that will appeal to Emirati customers. Consider factors such as demand, competition, and potential profitability.
 2. Competitive Analysis Report: Provide a detailed analysis of competitors selling similar gadgets, including pricing strategies, product offerings, customer reviews, and marketing tactics. 
3. Keyword Research and Optimization: Conduct keyword research to identify relevant search terms ...

I'm seeking an experienced SEO expert to optimize my hotel website in order to improve its search engine ranking. Currently, our site sits on the second page and we want to elevate its position. The project will require intricately working on the main keywords including our Hotel's Name, Location and Services. We have certain competitors within the same location we'd like to outrank in the search engine rankings. To succeed, you should have: - Proficient knowledge in SEO - Proven track records in outranking direct competitors - An excellent understanding of SEO strategies revolving around hotel brands This is a great opportunity for someone who has a deep understanding of how the Google ranking algorithm works and has demonstrable exper...

I need a draft English translation of the article originally written in Polish (less than 500 words) to be put in English version of wikipedia. Some sources should be added. Ideal Skills: - Reasonable English proficiency - Experience in Wikipedia Small budget. Total work should take up to 30 minutes.

I am looking for a pop-up ad for my web site to promote an upcoming industry event. I don't have specific size dimension requirements and will consider any and all layouts. I can always resize it as necessary for my site. I believe the ad should feature the following elements: * Title - Simtronics 2024 User's Conference * Simtronics logo or mark (attached) * 1 or more photos from a previous event (9 different photos attached to choose from) * Logo of the college where the event is being hosted (San Jacinto College attached) * At least one photo of the building where the event is being held (two options attached; CPET Building_ * The copy listed below: Join us for the Simtronics 2024 User's Conference in Pasadena, Texas on...

I am looking for a ***FULL TIME*** writer who is also willing to do administrative tasks. We are a text content agency that was founded in 2022, and we are mainly working with German clients at the moment. Our team loves languages and that's why we write. I need someone with a very high level of English. Actually, we are looking for a team player who is reliable, organized and works in a structured way. You will be responsible for various tasks such as writing website texts. You will help their business gain more brand awareness and exposure across all digital platforms. *You must be willing to learn, and I prefer a long-term commitment.* ***Weekly Responsibilities:*** - Daily team call to coordinate - Writing ...

We're a social media marketing agency seeking a talented 2D graphic designer to help create a reel. The primary goal of this reel is to share information or educational content. Requirements: - Experience in 2D graphic design - Proficiency in adding text, pictures, and color correction - Experience creating reels for social media marketing Please submit your application with relevant experience and a clear explanation of how you meet the above requirements.

I'm on the recherche for a professional WordPress designer to customize my current template. The task includes: - Altering colors and fonts to match with my artistic theme - Crafting custom sections - Tweaking the layout, with a focus on user-friendly and intuitive design - Sketching out a distinct logo - Creating individual pages for my diverse artists - Integrating YouTube links and a music track onto the site - Designing an easily adaptable portfolio template for up to five artist portfolios each - Generating an event pop-up and connecting it to WhatsApp Business. A candidate with prior experience in similar projects and WordPress customization will be preferred. Must ensure attention to detail and apply imaginative design strategi...

I am in need of a licensed Georgia engineer to provide a structural engineering letter. The objective of this letter is to help me obtain a building permit. Key Information Needed: - Compliance with Local Building Codes: The engineer needs to confirm that my mobile home meets all the necessary local building codes. Existing Documentation: I have some documentation available for the mobile home, however, it is partial and somewhat outdated. It would be great if the engineer could work with this documentation, filling in any gaps and updating it as necessary. I would like to work with a professional who has experience in Georgia's building regulations and who can provide this letter in a timely manner.

Need help of research writer / rewriter to rewrite the content of paper The style of the paper seems incoherent and uneven due to the contribution of multiple authors. You should be able to create a logical link between consecutive paragraphs and sections. You need to completely rewrite the paper so that  it becomes coherent,  grammatically correct,  and stylistically appropriate. As a language expert, you must understand the above-mentioned requirements in bullets that represent the required outcome.  Use of AIs (ChatGPT, Wordtune…) is allowed until it's not detectable (As AI generated) by plagiarism detection software. *** You will not get paid if the content is caught for AI and/or plagiarism.  References should be retained in place an...

Token on solana Name : Make America Great Again Symbol: $Maga Supply : 1 billion Decimals : 9 Tax : 3% buy tax and 3% sell tax(3% to lp and 3% to marketing wallet) *Noone can hold more than 6.7%* (like a supply block) Marketing wallet : GQ5ZVUtoUeLvfAMmUxwMrSNnXacDYSwEZW2abJk2DKcW

As a client looking to set up my own multiple Email Service Providers, I need a freelancer with expertise in setting up Learning Power MTA and a variety of SMTP services. Key Responsibilities: - Set up Learning Power MTA - Multiple ESP (such as MailChimp, Constant Contact, SendGrid) integration - Setting up various SMTP servers. Ideal Skills and Experience: - Proficiency in Learning Power MTA setup. - Extensive experience with various ESPs. - Ability to work with a range of SMTP services. - Strong communication skills. - Attention to detail and ability to meet tight deadlines. I'm looking for someone who can get this project done ASAP. Your expertise and efficiency are crucial.

...I'm looking for a tender applications specialist with deep knowledge and experience in the sectors of government and corporate tenders. My business operates in the sports and urban development industries. Key Tasks: * Proposal Writing - Craft compelling and competitive proposals that meet the given criteria * Tender Evaluation - Evaluate different tenders to determine which ones are the most profitable and viable * Tender Sourcing - Source potential tenders in these sectors Ideal candidate should have: * Proven experience dealing with government and corporate tenders * Specific industry knowledge in sports and urban development sectors * Superior skills in proposal writing * Skills in evaluating and sourcing suitable tenders This role requires precision, dedic...

I need a seasoned legal writer who's familiar with Wisconsin law to draft terms & conditions for my online course selling site. Key sections should be: - Privacy Policy: In this section, you have to address how we collect, use, and store information of our members. The information collected includes member's name, email address, and billing address. - Refund Policy: Detail out our refund policy for the courses purchased. - Intellectual Property Rights: Define the rights regarding the content of the online courses. Experience in writing terms and conditions for e-learning platforms is desirable. Also, keep in mind that we retain the personal information of our users as long as they're a member. Your document should reflect this. Please no...

I'm in need of an individual who can create a series of educational videos. These videos will center around communication skills and basic grammar. Target Audience: The primary target for these videos is adults. Thus, the content should be tailored to suit their level of understanding and interest. Video Content: - The videos should be engaging and professional, with a duration of 5-6 hours in total. - They should cover a variety of communication skills, including body language, active listening, and conflict resolution. - Basic grammar aspects should be integrated seamlessly into the communication skills topic. Skills Required: - Proficiency in video production and editing. - Strong understanding of communication skills and grammar. - Experience in creating ed...

I am seeking a Wordpress developer to customize my travel site's WooCommerce product pages. Key project goals include: - Addition of custom fields named 'Pick Up Date' and 'Custom Options' - Integration of a new feature, 'Custom Pick Up Time' The ideal candidate will have extensive experience with Wordpress and WooCommerce customizations, specifically with travel-oriented sites. I am eyeing for a completion of the project ASAP. Your expertise and swift turnaround time can make a great difference. If you are confident in handling such customizations, I am looking forward to your proposal.

I require a customer service/sales representative available on a per-call basis with a sales bonus. The job involves handling 50-100 calls per week for our bouncy rental business. Key Responsibilities: - Handling incoming calls from potential and existing customers. - Providing exceptional customer service. - Identifying and converting sales opportunities. -Answer incoming calls and provide comprehensive information about our inflatable party rentals. -Efficiently process bookings, manage customer inquiries, and close sales. -Maintain a professional and courteous demeanor in all interactions. -Utilize various computer applications to manage customer information and bookings. The ideal candidate should have: - Prior experience in customer ser...

I'm in need of a skilled .NET developer who specializes in C# and can create a web application. The ideal candidate should be proficient in both the frontend and backend development. Key requirements: - Expertise in React.js, C# and ASP.NET for web-based applications - Proficient in frontend technologies like HTML, CSS, and JavaScript - Experience in backend development and databases - Ability to understand and implement software requirements - Strong problem-solving and analytical skills Your primary focus will be on developing the web application in C# to meet our business requirements. You'll need to ensure the application is high-performing and responsive, and you should be able to handle both the frontend and backend aspects of the project. The ...

I'm seeking a talented app developer to design and build a user-friendly food ordering platform specifically for Android devices. The key features of this app should include: • User registration: The app should have a robust user registration feature, enabling customers to sign-up and maintain personalized profiles. • Menu browsing: Integration of a comprehensive and easily navigable food menu is crucial. The menu should allow users to browse a wide variety of dishes, add to cart and place orders. Although not mandatory, experience in UI/UX design and a background in creating similar food-based apps would be a great advantage. The app should also support UPI - a popular payment interface in India - for transact...

...DELIVERY DAILY. BUDGET: .015-.03 per word. (depending on experience and industry knowledge) I'm in need of high-quality written content that spans across different categories and languages. The main tasks are as follows: - **Content Creation:** I need a total of 127 articles, web pages, and blogs. The content is centered around interpreting, culture, and translation. Please ensure that the content is engaging and informative, tailored to the respective platform (article, web content, or blog). Most articles must be at least 1000 words in length. So essentially this project this for at least 127,000 words. Instructions: Review all of the content and articles or blogs on our website and rewrite it so that there is NO plagiarism, and a...

I'm seeking a skilled business plan writer to update my existing plan. The project involves focusing on the Executive Summary and Financial Projections, ensuring they are detailed and compelling for a loan application. Key requirements: - The current business plan will be provided for reference, so you can understand the existing structure and content. - The task will be to update the plan with a specific focus on making the Executive Summary and Financial Projections more robust and persuasive. - The aim is to improve the plan's appeal to lenders, enhancing the chances of a successful loan application. Ideal skills and experience: - Proven experience in business plan writing, particularly in the context of loan applications. - ...

I am looking for a skilled video editor to help me with a 1-5 minute raw footage. The goal of this project is to enhance the video in a natural and professional style. Key Requirements: - Expertise in video editing, especially for natural-looking videos. - Ability to edit a short 1-5 minute raw footage. - Understand and apply the natural style of video editing. - Attention to detail and precision in editing. - Proven experience in video editing with a natural aesthetic. This is a great opportunity for an editor with a creative flair and a keen eye for detail. Please provide samples of your previous work that showcase your ability to edit in a natural style.

I'm in need of a capable finance professional with expertise in preparing financial statements to create both an income statement and balance sheet, on a quarterly basis. The statements should conform to the International Financial Reporting Standards (IFRS). Key Responsibilities: - Develop an income statement and balance sheet for the quarter in line with IFRS requirements Ideal Skills and Experience: - Strong background in finance and accounting - Previous experience with IFRS and financial statement preparation - Detail-oriented and proficient in financial analysis and reporting - Ability to meet stringent deadlines and deliver high-quality work Please provide evidence of similar work completed in the past. I am looking for someone who can met...

I am searching for an expert in Spring Boot (v3) Java (for front it can be react or angular) who has the ability to create a property management system. The system should be comprehensive, including both tenant and property management facilities, as well as maintenance. Additionally, I require the integration of a hotel management system within the same platform, supporting room reservation, guest check-in/check-out, housekeeping, back office and room management, and a central reservation system. There are 3 hotels and 4 houses for rental which will be managed by this system. So, we need to manage all hotels together and separately. Ideal skills & Experience: - Spring Boot (3) Java proficiency - Angular or React - Great UI/UX - Experi...

I'm looking for a comprehensive research and writing expert in the field of fusion energy. I need this project to cover a range of specific areas within this topic, including current research and development, potential applications and an overview of companies and supply chain companies related to fusion energy. Key deliverables include: - A minimum of 10 research papers and articles that showcase the current state of fusion energy research and development - Analysis of these findings with a focus on key insights and future outlooks - An in-depth review of the potential applications of fusion energy Ideal skills and experience for this job include: - Strong background in physics, ideally with a focus on energy - Prior experienc...

I need an expert writer to craft a 5-minute best man speech for an upcoming wedding. The speech should be comedic in tone while incorporating stories about my longstanding friendship with the groom. Skills & Experience Required: -Prior experience in speech writing, preferably comedic. -Ability to capture unique personal experiences in an entertaining way. Deliverables: -A completed, write-up of the best man speech that fits within a 5 minutes speech slot. The ultimate goal of this project is to create an enjoyable, memorable moment for all wedding attendees, especially the groom through a funny and personal speech.

I'm looking for a dedicated professional to undertake basic editing tasks for a series of educational tutorial videos. You will be provided with raw footage that needs trimming and merging to create a seamless learning experience for viewers. Your tasks will include: - Trimming unnecessary parts - Merging clips to ensure logical sequence - Ensuring smooth transitions between frames - Delivering finalized products in a timely manner Ideal candidates should have: - Proven experience in video editing, particularly with educational material - Proficient in using various video editing software - Excellent attention to detail - Ability to meet deadlines successfully Please provide your previous work samples along with your bid. Looking forward to col...

I'm seeking a proficient grant writer to help secure funding for a comprehensive youth program. - The project targets the age group of 15-18 years old. - Aims to improve physical health, self-esteem, and reduce anti-social behavior. - The envisioned timeline for the project is 1 year. The ideal candidate will have prior experience in: - Writing successful grant proposals in the field of youth development. - Understanding of mixed martial arts (MMA) programs and their benefits for youth. - Knowledge in designing and implementing outreach programs. The successful freelancer will be responsible for: - Conducting research on potential funding sources. - Writing a compelling grant proposal tailored to the aforementioned objectives. - Assisting in the...

I require a talented content creator to produce formal, written articles aimed at an adult audience. Key Tasks: - Writing informative and engaging articles - Adapting your style to suit a formal tone - Keeping adult readers firmly in mind as your target audience Ideal skills and experience: - Previous experience in professional article writing - A strong understanding of formal tone in writing - Ability to engage and inform adult readers.

...looking for a bilingual (Spanish & English) virtual chat operator to handle customer inquiries on our platform. Key Responsibilities: - Engage with customers in a friendly and professional manner through online chat - Provide accurate information and timely assistance to resolve customer inquiries - Maintain a positive and empathetic attitude towards customers at all times - Collaborate with team members to ensure consistent and high-quality service delivery - Adhere to company guidelines and policies while handling customer interactions Qualifications: - Native in Spanish - Great English skills (C1 level minimum) - Excellent written communication skills - Types fast (55wpm+) - Needs to have fast internet(100 download and ping below 20 minimum) -...

I'm seeking assistance in setting up an automatic discounts on Google Merchant Centre. The ideal candidate will have experience with Google Merchant Centre, shopify, and automated discount features. Key Requirements: - Setup automated discounts within Google Merchant Centre - Test the products to confirm the variant price. Ideal Skills and Experience: - Proficiency with Google Merchant Centre - Experience in implementing automated discount features - Knowledge of shopify platforms and best practices for discounts - Ability to work quickly and efficiently to complete the project ASAP Your understanding of automated discount features is crucial to the success of this project. Your ability to work efficiently and meet tight deadlines will be highly valued.

I am looking for a versatile content writer with experience in market research to help me create compelling content for my Website Blog and PowerPoint presentation. - The main focus of the content is market research, with an emphasis on general market trends. - You will be responsible for creating engaging, informative and well-researched content that will help me convey complex market trends in a clear and easily digestible manner. Ideal skills for this job include: - Proficiency in writing and research - Experience in market research - Ability to create engaging and informative content - Proficiency in PowerPoint - Understanding of SEO and keywords The ideal candidate will be able to demonstrate previous experience in similar projects and provide...

...designing and developing a one-page website for a client. The client has already approved the design, which is very basic and requires the website to be a single, scrollable page. Project Scope: Design Implementation: Convert the approved design into a functional website. Content Integration: Add client-provided content to the website, including text, images, and any other relevant media. Responsive Design: Ensure the website is responsive and compatible with various devices and screen sizes. Navigation: Implement smooth scrolling and a fixed navigation menu for easy access to different sections of the website. Contact Form: Include a contact form for visitors to reach out to the client. SEO Optimization: Implement basic SEO practices to impro...

I am seeking experienced graphic designers with a solid background in text-based logo conception. The client's preference leans towards text-based logos, offering a great platform for creativity and innovation. Specifically, I'm looking for: - Demonstrated expertise in creating text-based logos - Proficiency in graphic designing tools - Ability to translate my brand's personality into the logo - Willingness to accept feedback and make revisions as necessary Please note, that the mood or personality of the logo and the deadline for completion are open-ended, offering a degree of flexibility. However, I appreciate promptness and expect you to propose realistic timelines based on your schedule. Your proposals should prov...

I'm in need of a skilled content writer to craft friendly and conversational copy for my website. The primary goal of the content is to inform visitors about the services and products I offer. Key requirements: - Crafting engaging, friendly and conversational content - Delivering clear and concise information about services/products - Ability to write for a general audience - Understanding of SEO principles for web copywriting Ideal Skills: - Previous experience in website copywriting - Proficiency in creating SEO-friendly content - Ability to adapt writing style to match the tone required - Understanding of customer engagement and conversion - A portfolio demonstrating successful website copywriting is highly desirable If you're confident ...

...looking for a talented freelancer to create a sports league management system. The system should support various aspects of sports league management, including scheduling matches, tracking results, managing teams and players, and generating league rankings. The system should be user-friendly, easy to navigate and have a visually attractive interface. The ideal candidate should have experience building similar systems and have strong programming skills. This project requires excellent problem-solving skills, attention to detail and the ability to meet tight deadlines. I am sending more details below. Level 1 Creation of a league management system along with a website template that will display information about the created league. ...

I'm in need of a skilled graphic designer who can create a set of professional brochures for my upcoming marketing campaign. Key Deliverables: - Design multiple brochures to be used in marketing - Ensure the designs are visually appealing, professional and align with our brand identity Ideal Skills: - Proficiency in graphic design software - Strong understanding of marketing and branding - Creative and innovative approach to design - Excellent attention to detail - Ability to understand and implement brand guidelines Experience: - Proven work experience in graphic design, ideally in a marketing context - A strong portfolio of previous work, specifically focused on brochure design - Experience working on marketing campaigns is a plus ...

I am looking for a proficient writer to extensively cover concepts, theories and practical applications related to positive psychology for a 4500-word portfolio. The focus area of the portfolio is coaching psychology. Key Requirements: - Explore different theories and concepts within the realm of positive psychology - Analyze multiple real-life case studies - Offer practical tips and advice based on the analyses - Who can utilize proper APA referencing throughout the paper - The portfolio must be academically sound since it is designed for an academic assessment Ideal Candidate: - Familiarity and experience with coaching psychology - Excellent referencing and formatting skills - A strong background in psychology, particularly on the posit...

We are a company of building blocks script is for our brand video on our official website. Therefore, the video mostly contains the story of how we've founded, how we've insisted on our values along the way, and how we've become known and loved nowadays. As important it is, we've already written the script ourselves with the key informations. But we need an English native speaker and also an experienced commercial script writer to help us rivise the whole script, making it more authentic, conversational, and appealing to our audience.

I'm seeking a seasoned content writer with experience in technology-focused topics. Details: • Your main task will be creating engaging blog posts about custom made softwares • Your content must be insightful and contribute positively to my readers' understanding and knowledge about the latest in the field of technology, how it can be better. • Your posts must be compelling with an engaging tone and original content. • Familiarity with tech industry terminology is critical, as well as SEO best practices. Ideal Skills: • Content writing with focus on technology • Current on latest technology news and trends • SEO knowledge • Ability to craft reader-friendly posts with tech-savvy language.

I'm seeking a talented developer who can create a detailed and comprehensive report using Sierra Chart. The report should include: - All pertinent data from the Trade Panel, including Target/SL (Stop Loss), Order Quantity, Entry Price, and other relevant line items. - Also from the Study Panel, this report should have exhaustive details like Parameters, Study Name, and Study Results. - An important requirement is to include crucial information from the Trade Active Log. This includes the Order ID, Execution Time, and the Symbol along with all data from studies/trade panel and trade activity. Having an extensive understanding of Sierra Chart's interface, functionality, and metric tracking is vital. Applicants with prior experience in similar projects will be prefer...

I am in need of someone with a strong grasp on creating schematic images, specifically of power lines and electrical wiring inside home. This project involves creating less than 10 unique but intermediate-level schematic images. Key requirements include: - The ability to understand and depict power lines and electrical wiring schematics - Proficiency in creating PDF format schematics - Able to produce intermediate-level detail in schematic design (can be closer to real images) Experience in creating schematics for publication would be a beneficial skill. The successful candidate will have a keen eye for detail and a knack for turning complex systems into clear, understandable illustrations. This is a great opportunity to showcase y...

Need help of research writer / rewriter to rewrie the content of paper The style of the paper seems incoherent and uneven due to the contribution of multiple authors. You should be able to create a logical link between consecutive paragraphs and sections. You need to completely rewrite the paper so that  it becomes coherent,  grammatically correct,  and stylistically appropriate. As a language expert, you must understand the above-mentioned requirements in bullets that represent the required outcome.  Use of AIs (ChatGPT, Wordtune…) is allowed until it's not detectable (As AI generated) by plagiarism detection software. *** You will not get paid if the content is caught for AI and/or plagiarism.  References should be retained in place and...

I require a skilled software developer with proficiency in language support and integration to build a custom standalone Text to Voice AI and Voice to Text software for use on Windows. This software should allow us to integrate our own voice and should be adaptable to our specific needs. Key Features: - Support for English, Sanskrit and Hindi languages - Ability to integrate with other software platforms - Customizable voice tones to meet diverse content needs - Compatibility with Windows and MAC systems This project is aimed at enabling our YouTube channel to provide custom content and improving our viewer’s experience. The ideal freelancer would have experience in developing similar software, a solid understanding of language processi...

Website content writing project for overall website of 4 pages, Home page, About us, Services, Blogs

Hey, I'm looking for video editor who can edit these types of videos. I'm looking for something great like:

I require an acoustic engineer with a specialization in architectural acoustics to assist in ensuring that the acoustics of my commercial building, specifically a retail store and office, are appropriately designed and optimized. Key Responsibilities: - Conduct an initial assessment of the retail space to determine the current acoustic conditions. - Design and implement a comprehensive acoustic plan for the retail space. - Assist in the selection and placement of acoustic materials and elements. - Ensure that the final design meets the required acoustical standards for a retail environment. Ideal Skills and Experience: - Proven experience in architectural acoustics, particularly for commercial spaces. - Sound knowledge of acoustic principles and their p...