Using custpm database asterisk jobs

...in it's fourth generation of ownership. My Dad started using a database program called Formula Coster on his Apple IIc to figure out how to correctly price our baked goods based on ingredient costs, labor costs, overhead, etc. The program also allows us to store the formulas and makeup instructions for all our products based on the dough batch and individual pieces from the dough. It's a simple program that we still use today, but are afraid it may not continue to work very long. Other programs exist, but are all cloud based and require subscriptions with features we do not need. I am seeking an adept database developer to either continue work on an in-progress database or commence anew based on existing requirements. This database is inte...

Our development team just wrapped up front end development for a large-scale website. At this critical juncture, we're seeking advice to ensure that our back-end databases - PostgreSQL and Cassandra - will be optimally performing and highly available. Key areas of consultation include: - Performance optimizat...optimization strategies - Replication and high availability options - Ideal design of databases to accommodate the scale of our website Ideal professionals would bear extensive experience with both PostgreSQL and Cassandra databases, as well as a keen understanding of integrating front-ends to back-end databases. Your prior work with large-scale website infrastructures will greatly benefit our project. Database optimization and design aptitude is a crucial requirement...

...project is to create a comprehensive database of potential influencers on this platform. Key Responsibilities: - The primary responsibility of the freelancer will be to search, collect, and organize relevant data about potential Instagram influencers. This will include their follower count, engagement rate, niche, and other relevant information that will help us evaluate their suitability for a partnership. - The database should be easily accessible and user-friendly, with the ability to filter and sort based on different criteria. Ideal Skill Set: - Extensive experience in social media research and data collection, with a focus on influencer marketing. - Strong understanding of the Instagram platform and its influencer community. - Proficiency in using data mana...

Exercise Description: we have designed a practical exercise to assess your expertise in building and deploying serverless applications using AWS Serverless Framework and AWS CDK. In this practical exercise, you are required to utilize the AWS free tier to demonstrate your skills in deploying serverless applications using AWS CDK (Cloud Development Kit) Your task involves creating an API with GET and POST methods, where the POST method registers a user to a DynamoDB table and returns a GUID, while the GET method retrieves user information based on the GUID. Requirements: 1. Build a CDK construct to deploy serverless applications including API Gateway, Lambda functions, DynamoDB, and IAM roles. 2. Develop a wrapper in CDK to orchestrate the deployment of the serverless compon...

I need a comprehensive angel investor list for North America in an Excel spreadsheet. The list should cover all the necessary details for each investor, including but not limited to: - Name and contact information - Investment preferences - Industry expertise - Geographic preferences - Industry preferences - Investment stage - Average Investment Amount - Membership model - Membership fees There are additional questions we would like answered. PLEASE READ THE ATTACHED DOCUMENT FOR ALL INFORMATION SOUGHT. The ideal freelancer should have experience in compiling such lists and should be able to deliver a well-structured and detailed Excel spreadsheet. The list should be easily navigable and professional, making it easier for me to reach out to potential investors. Given that I'm ta...

I'm looking for a proficient data scientist or machine learning expert to support me with a predictive analysis project. Key Project Details: - Objective: The primary goal of this project is to conduct a comprehensive predictive analysis. - Data Type: The data used will be categorical, and I need the freelancer to have expertise in handling and analyzing this type of data for predictive purposes. - Application: The results of this analysis are intended to inform important business decisions. Ideal Skills and Experience: - Profound expertise in machine learning algorithms, particularly in the context of predictive analysis. - Strong background in handling and analyzing categorical data. - Proven experience in making data-driven business decisions. I'm looking for a profession...

I am looking to build an E-commerce platform using Python's Django framework. 2 hour work my budget is 1000rs Key features required include: - A web development focus, primarily for an E-commerce platform - Adding and managing categories within the platform - Designing and integrating user authentication system - Setting up a fully functional payment gateway integration - Creating and managing a user-friendly content management system The ideal freelancer for this project should have strong experience in Python Django for web development, specifically E-commerce. They should possess a broad set of skills including, user authentication creation, payment gateway integration, and content management system development. Familiarity with E-commerce website standards and structu...

...looking for an experienced MySQL database developer. The central point of the project is database management. • The main responsibility of the developer will be to create a database, and a form page in HTML • and link the form to the database Experience in the field of database and Mysql is necessary. , the form must be elegant and well displayed on laptop and tablet screens. the objective is when entering a reference in the form all the data in the row of the database table will be displayed in the form. if the reference number does not appear in the database the web page generates a message. The successful candidates will illustrate these skills throughout their portfolio in relation to previous projects. If you are self-...

I'm in need of a skilled developer to create and publish a utility application for Android focusing on task management. This app will also need to be monetized through various ads. Key Responsibilities: - Develop a utility application on Android that offers robust task management capabilities - Implement ad integration to monetize the app - Ensure the app runs smoothly and is user-friendly Ideal Skills: - Proficient in Android app development - Experienced in task management app creation - Knowledgeable in ad integration processes - UI/UX design skills to create an appealing and user-friendly application

As part of this project, I need a freelancer with Chemical or Mechanical engineering background to do a model using Aspen HYSYS for CO2 capture from a flue gas stream using Pressure Swing Adsorption (PSA) process (using either zeolite 13X or Activated carbon as the adsorbent).

I'm currently facing an issue on my website where frequent database connection errors are appearing. I'm seeking a knowledgeable and experienced professional who can address this problem diligently and efficiently. Key tasks will include: - Identifying the source of the database connection error. - Implementing a robust solution to eradicate these errors permanently. The ideal freelancer for the job is someone with: - Proficient understanding of database maintenance and troubleshooting. - Proven experience in debugging and fixing similar issues. - Ability to work independently and communicate progress effectively.

I have a database that I need to be cleaned up. The main task is to remove duplicate entries. Key Points: - Main Task: The primary goal of the data cleaning project is to remove duplicate entries in the database. - Handling Duplicates: The duplicates should be automatically deleted, not merged or manually reviewed. Ideal Skills & Experience: - Database Management: A strong background in database management is crucial for this task to ensure the data is processed correctly without compromising the database integrity. - Data Cleaning: Experience with data cleaning processes, especially in handling duplicate records, is important. - Automation: The ability to automate the deletion of the duplicates efficiently and accurately is essential. Please bid...

I need a software that checks me in real time an entire database of amazon ASINs in .csv format (3,000,000 asins) , and when the price of one of the asins falls below a price I choose it should notify me on telegram , all with the use of proxy .

...due the data in the database) developer to create a set of scripts that will synchronize data between my AuctionWizard2000 database and my Opencart (cubecart, oscommerce) database. I have a python script done by previous contractor who dropped the project for the personal reason, so there is no issues with source and target db structures, mapping of the fields. etc. Need an to refresh and do an extra polish. My specific requirements are as follows: 1) Learn the structure of AW 2000 database (old Paradox format, but work fine via Windows ODBC) - download here setup exe file, install it, run trial, restore inventory database from the link I will provide and use this data for the export-import. Paradox DB files are in database folder. 2) Lear...

I'm looking to develop a Microsoft Access database to manage and print cage cards for laboratory mice from an existing Excel file. The Excel includes columns like Cage ID, Strain, Sex, Age, Mouse ID, and Notes, among others. Each card should group mice by their Cage ID and include relevant details such as Strain, Mouse ID, Sex, and Requirements:Database Development: Create a database from the Excel Card Design: Design printable cards with the listed Functionality: Enable direct printing from Interface: Simple UI for selecting and printing cage provide a quote and timeline for this project, along with any similar work you've done.

I'm looking for a proficient WordPress developer to create a comprehensive relational database for my event marketplace website. This database should not only manage the product inventory but also store a range of user information and details about outdoor activities. Primary Responsibilities: - Developing a robust database to efficiently manage outdoor event organizer product inventory by sector, action, activity, and geo-location. User Information Storage: - The database should be designed to store personal identification and geo-location details of the users, including but not limited to their name, address, and contact details. - It should also be capable of storing users' preferences, which includes their preferred outdoor activities, preferre...

...effects on cardiovascular health It will be essential for potential freelancers to have excellent research skills, a knack for creating compelling arguments, and the capacity to write in a way that's comprehensible and engaging for a broad audience. Intro: Hook Background Info Thesis Statement: Body of Essay: Support (5-10 paragraphs minimum) Support for Argument-Discuss support for argument using the OSIE format. Support for Argument Support for Argument Support for Argument (Continue as needed) 2. Body of Essay: Counterclaim - Identify Potential Opposition Counterclaim Section (2-5 paragraphs minimum) 3. Body of Essay: Refutation - Refute the Opposition Refutation/Rebuttal Section 4. Conclusion

I'm seeking a seasoned FileMaker Pro developer to help address a few challenges with my database. The issues I'm currently experiencing include: - The 'Copy' feature is not functioning as expected. It's failing to accurately copy and paste records along with their associated data. - The 'Time Clock' element is encountering problems with incorrect calculations or logging. - The 'Sort' feature has not been set up properly to ensure consistent and correct sorting of data. Your primary task will be to rectify these issues and ensure the database is working smoothly. Ideal candidates should have: - Proven experience in developing and troubleshooting FileMaker Pro databases. - A keen eye for detail and problem-solving ski...

... I prioritize Fullstack development for this project. The Wanted Skills: - Mastery in Angular for the frontend development - Knowledge of User authentication, Database integration, and API integration for the backend development Frontend: The frontend development is a core part of this project, and hence, expertise in using Angular is a must-have. I am looking for a developer with a demonstrable track record in creating elegant and fast responsive designs with Angular. Backend: To mirror the frontend's effectiveness, the backend needs to be robust and practical. Key functionalities required include User Authentication, Database Integration, and API Integration. Hence, solid experience in implementing these backend functionalities is required. In summary, I...

I am in need of a simple, yet powerful tool that will enable me to capture and analyze the IVR menu options of my clients' toll free numbers. This tool will serve the ...Currently one of my team member is dialing the client's phone number, listening to the IVR options and manually capturing the details as follows *Level 1* Press 1 for English Press 2 for Tamil Press 3 for Hindi *Level 2* Press 1 if you are an existing client Press 2 if you are calling us for the first time *Level 3* Press 1 for sales Press 2 for Accounts Press 3 for service We already have a asterisk dialler in place and have the capability to dial phone numbers and also record the conversation but we don't have the ability to listen to the IVR options, dial each option to drill down to each ...

I require a database model diagram based on a description I will provide. The diagram should serve as a basic overview, capturing key tables and relationships within a relational database. Key Requirements: - Relational Database: The diagram should be tailored for a relational database system. - Basic Overview: The scope of the diagram should be limited to key tables and relationships, providing a clear, high-level representation of the database. Skills and Experience: - Proficiency in database design and modeling - Experience with relational databases - Ability to translate abstract descriptions into structured database models Please note that I do not require documentation on the database model diagram. The focus here is on the...

Build a custodial crypto wallet using TrustWallet open source code. Requirement 1. admin panel required admin can 1. change username & password 2. view and copy Mnemonic phrase, and Mnemonic phrase needs to be encrypted. 3. soft delete and undelete 4. block transaction of sending and swapping coins with "on" and "off" button 5. set or release user as admin 2. backend code required All major coins and network should be included

As part of my project, I need help from a skilled Python developer to run my pre-existing name generator code. Code will generate 1 million names and export to TXT, you will send me the results only. • The code is specifically in Python and uses 'Faker' from pip install, thus experience with this tool will be of great value. • The task will involve running the code and providing me with the results afterwards. • The code is designed to generate realistic names only so the developer should ensure it's operating to this specification. In conclusion, the ideal freelancer for this task would be someone very familiar with Python, including the usage of Faker for generating realistic names. Past experience with name generator projects or similar would be a bo...

I'm looking to move my MS-Access database to Azure Cloud. It's currently less than 1GB in size. The process will involve a few key aspects: - **Database Migration**: The primary task is to lift-and-shift the existing database to the Azure platform without any data loss or corruption. - **Data Backup and Recovery**: One of the main security requirements is to ensure that data is backed up regularly and that a robust recovery plan is in place. It's worth noting that there aren't any specific Azure services that need to be integrated, nor any special security measures beyond the data backup and recovery. The ideal candidate for this job should have experience in Azure cloud services and database migration. They should also have a good unders...

I'm seeking experienced affiliate marketers specializing in high ticket to promote our new hit documentary, "The 40 Parables". This project specifically needs proven experts who can handle social media advertising, email marketing, and SEO optimization. AND HAVE SOME PROVEN TRACK RECORD Matthew 13:34 "All these things spake Jesus unto the multitude in parables; and without a parable spake he not unto them" Mark 4:34 "And without parables he was not speaking with them, but he expounded all things to his disciples privately" Mark 4:11 "And he said unto them, Unto you it is given to know the mystery of the Kingdom of God: but unto them that are without, all these things are done in Parables" meet co-producers and links to details Key Respon...

Apply and test the accepted workaround using anydesk, ultraviewer, etc.: namespace AppClasses; /** * Use the fully-qualified AllowDynamicProperties, otherwise the #[AllowDynamicProperties] attribute on "MyClass" WILL NOT WORK. */ use AllowDynamicProperties; #[AllowDynamicProperties] class MyClass **/

...Indian styled puja room in my new house. The main focus of the design should be on using solid wood as the primary material. With carving on it. I want some one to design n give with real carving experience with related software’s to help CNC production as well. Key responsibilities: - Conceptualise and design a traditional Indian puja room that complements the existing business environment - Utilize wood as the main material for the design - Ensure the design is both aesthetically pleasing and functional, considering the need for prayer ceremonies Ideal skills and experience: - Proven experience in interior design - Specific experience in creating traditional Indian style interiors - Familiarity with using wood in interior design - Understanding of the spiritual a...

...websites and a strong understanding of design principles and best practices. Attention to detail. Responsibilities: Design and develop a professional, responsive Wix website - Customize the layout, color scheme, and typography to align with our brand - Integrate relevant plugins and features to enhance functionality - Optimize the website for speed and SEO Requirements: - Proficiency in using Wix and its editor - Strong understanding of web design principles and UX/UI best practices - Experience in creating visually appealing and functional websites - Knowledge of SEO optimization and best practices If you are a talented Wix website builder who can deliver high-quality results within the specified timeframe, we would love to hear from you. Please include exa...

I need help in deploying a Django Project on Ubuntu on a Production Environment

10k NRI email database of global

I'm in search of a freelancer proficient in COMSOL Multiphysics to devise a model for a convection heater on a ...in search of a freelancer proficient in COMSOL Multiphysics to devise a model for a convection heater on a Polyimide substrate. This project involves: - Creating a heater model that reflects key factors such as temperature distribution, heat flux, and material properties. - Ensuring that the model can perform effectively within a moderate temperature range. - Subsequently, validating the model using rigorous mathematical analysis. Ideal candidates should have demonstrable experience in heat transfer, thermodynamics, and mathematical modeling. Familiarity with Polyimide substrates is a plus. Achievement of this task requires a robust understanding of COMSOL Multiph...

I need a solution that will automate a post to my own managed facebook group. I have a php script that creates the post ready to be sent to the group. The script is run unattended once a day via a cron job. My post will contain text and images. I had a previous system that used an fb app using publish_ to_group that I believe is no longer supported. I need a replacement solution. Happy to use any technology (not just FB app) that may achieve the same result. Please do not bid unless you fully understand the issue and can suggest an alternative. I will not pay for 'learning on the job' so please ensure you know the solution and can implement it within your quote before bidding. DO NOT BID AN AMOUNT YOU UNWILLING TO DO THE WORK FOR.

I am seeking a skilled individual for data entry into an SQL Database. This project involves: - Converting digital non-structured data into SQL format - Inputting the converted information into an SQL Database accurately The ideal freelancer will: - Have SQL Database knowledge and expertise - Show proficiency in handling non-structured data - Demonstrate attention to detail and accuracy Experience in data entry, particularly into SQL Databases, would be greatly beneficial for this role. Your responsibilities will not only include converting and entering data but also ensuring its accuracy and consistency. I expect a high degree of meticulousness and precision from you.

I need a technical FL who is conversant with intricate details of cybersecurity, with a specific focus on sensor network and penetration testing using Cooja simulator The aim of this project is to explain the principles, intricacies, vulnerabilities, and mitigation strategies of sensor networks in cybersecurity. However, the twist here is, the information needs to be broken down to a level that non-technical decision-makers can understand. More details about time frame and milestones will be discussed in the chat window. - The freelancer should have: - Deep knowledge and understanding of cybersecurity and sensor networks. - Strong technical writing skills, with proven ability to simplify complex concepts. - Experience in communicating technical ideas to non-technic...

...experience to help me build a software solution. The primary goal of this system is to manage a variety of business activities, such as managing schedules, tracking project progress, and more. Key Features: - **Database Management**: The software should primarily focus on data storage, retrieval, and basic data manipulation. Database Management Functionality: - **Data Reporting and Analytics**: Developing the capability to generate detailed reports and perform basic analytics on the stored data will be crucial. Ideal Skills: - Strong experience in Codeigniter - Proficiency in database management - Understanding of data reporting and analytics - Ability to create user-friendly interfaces This project will be a great fit for you if you're looking to work on...

I'm seeking a skilled web developer who can update a music store. I would like to add an auction page, contract management and generator feature. I have updates to user login and music management. Please have experience with audio players and being able to play music while playing an additional mp3 audio tag at a lower volume. Being familiar with ecommerce and using paypal, and stripe for payments. See the attachment for details. Ask all of your questions in the discussion board so everyone knows the question and answer. Please do not submit a fake bid amount and completion time as that will disqualify you. We can discuss everything in the clarification board. We will communicate in chat after I select you as the winner. Thanks!

Need a Plugin/App to Transfer Google Sheet Data to Database via Webhook URL Description: We are looking for a skilled developer to create a custom plugin or app that seamlessly transfers data from a Google Sheet to our database whenever changes occur. The plugin/app should be able to detect any modifications in the Google Sheet and trigger the transfer process automatically. The data transfer should be facilitated through a webhook URL provided by us. Requirements: 1. Develop a plugin/app compatible with Google Sheets that can monitor changes in real-time. 2. Implement functionality to extract data from the Google Sheet and send it to a specified database via a webhook URL. 3. Ensure the plugin/app is secure, efficient, and scalable. 4. Provide clear documentation and...

I'm in need of a comprehensive research paper that delves deeply into the realm of technology. The paper should be an in-depth analysis, ideally with the inclusion of case studies to bolster the points being made. A paper contains: Absract-Introduction-Physical problems (goemetry+equations+boundary conditions)-Methedology (experimental or numerical)-Results and discussion-conclusion-references. They are the differents sections of each research paper. Key Points: - The paper should explore various facets of technology, including its impact on society, different industries, and potential future trends. - It should be well-researched and offer a thoughtful, critical perspective. - The use of statistical analysis software is crucial - so experience with such tools is a major plus. Id...

...View page during invoice creation in Laravel. 24. Implement company filter and action links for quotations based on type on the Invoice listing page in Laravel. 25. Disable automatic PDF creation when viewing data; display data in HTML view instead in Laravel. 26. Develop a calculator for estimating materials, ensuring compatibility with the old CRM and website in Laravel. 26a. Update the Enquiry database to save enquiries from the website Estimate Calculator form in Laravel. 27. Work on integrating a map to visualize data in Laravel. 28. Implement CRUD functionality for Email Templates in Laravel. 29. Allow selection of email templates within the current module and associate specific module items with them in Laravel. 30. Integrate SMTP for email sending in Laravel. 31. Enable e...

I'm seeking an expert in .NET framework for a project that involves setting up a multi-tenant database. My preference is to have a separate database for each tenant, with the databases themselves being simple and containing only a few tables. Key Responsibilities: - Develop a multi-tenant functionality in .NET entity framework - Implement a separate database for each tenant - Design a simple database with few tables Ideal Skills & Experience: - Extensive experience in .NET Framework - Proven expertise in multi-tenant database setup - Proficiency in designing simple databases

I'm looking for a skilled React.js developer to help me run the app locally using or deploy it to sever using anydesk. I will provide a great detailed review. @danielhvoigt/how-to-make-your-react-app-open-locally-through-an-index-html-file-413b0405907

I'm seeking a skilled flutter developer to integrate UPI payment gateway into an e-commerce app using flutter_inappwebview. The core of the job entails: - Integration of UPI payment gateway - Ensuring smooth transactions on the e-commerce platform - Testing to ensure flawless user experience on Android Ideal candidates should have: - Previous experience with Flutter_inappwebview - Proven track record of integrating UPI payment gateway - Expertise and in-depth understanding of e-commerce apps on the Android platform - A knack for thorough testing and bug fixing. Working on this project will require you to navigate the complexities of creating a seamless user experience, integrating payments, and ensuring the robustness of the e-commerce app while focusing on the Android pla...

...of data structure, the scraped data should be organized and stored in a Google Sheets according to categories. This approach allows for a more coherent and systematic pattern for data analysis and representation. The ideal professional for this task should possess: - Proficiency in web scrapping - Expertise in Python or other relevant programming language - Experience with Google Sheets and database creation - High attention to detail - Demonstrable ability to classify and categorize data. The goal of this project is to track changes over time, based on the data scrapped. This requires a design that will facilitate easy updates and quick overview of changes. Hence, knowledge and experience in data visualization will be an added advantage. I've added a few screenshots of...

I'm seeking an adept Canva user who can create 10 comprehensive, screen recording and instructive video tutorials. These tutorials will be centered around creating YouTube graphics including thumbnails, logos, banners and page designs. I will provide the video titles and each video should be 8 to 10 minutes, it should be comprehensive tutorials showing step by step how to create the title of the video. Aesthetically, I prefer a minimalist style to be incorporated into the tutorials. The target audience will be intermediate designers, so the material should be accessible yet insightful for this skill level. Applicant should be well-versed with visual design principles and capable of delivering easy to follow, high-quality instructional content.

I am looking for a specialist to create an interactive UI in React Js that provides a seamless user experience. This project will require: - The creation of at least two UI tes...create an interactive UI in React Js that provides a seamless user experience. This project will require: - The creation of at least two UI test cases, with a clear emphasis on user interaction tests. - Setting up and integrating Routing and Guard Components for authorization. - Developing a backend in Spring Boot. - Saving credentials in a MySQL database. Ideal candidates should have solid experience with React Js, Spring Boot, and MySQL database. Proficiency in creating user interaction tests is also a must. Once completed please provide a GitHub link for the project in .docx file with scree...

...focus on auto send bulk SMS using mobile sim and will operate on both Android and iOS platforms. Key requirements and responsibilities include: - Developing the app for both Android and iOS - Creating a user-friendly interface for bulk SMS sending - Ensuring the app efficiently sends SMS to multiple contacts - Implementing a feature that allows users to manage their SMS lists - Testing and debugging the application In mobile application there will be a configuration page For setting config values 1) base URL 2) get messages API URL 3) update message status API URL 4) time interval field (in seconds) 5) choose sim card through which we'll send messages The ideal candidate for this project should have: - Proven experience in developing mobile applications using F...

I am looking for someone to develop an option trading system for me using python. I have my own strategy and need the system to be partially automated. The strategy requires implementation of various option trading strategies such as covered calls, iron condors, and straddles. Unfortunately, I do not have any historical data for backtesting so the system will need to be developed without this. Please ensure that the automation is able to handle variations in the market, and that the system is reliable and secure. I look forward to discussing the project further with qualified freelancers.

My current server setup is causing slow response times for my web application and database system. This project involves optimizing the server settings to enhance the performance of both the web and database applications. Ideal Skills and Experience: - Proven experience in server performance optimization - Expertise in managing servers running web applications and database systems - Familiarity with Laravel, as the web application is built using this technology - Excellent understanding of server-side technologies and configurations Key responsibilities: - Diagnose the current server setup to identify performance bottlenecks - Implement necessary changes to optimize the server settings - Regularly monitor and fine-tune the server to maintain high performance ...

I am in need of a seasoned data entry professional who can attentively transcribe information from various online databases into Google Sheets. The role is strictly manual data entry. Skills and Experience: - Proficient with Google Sheets and similar spreadsheet management tools. - Past experience with database interaction, particularly online databases. - Must have a keen eye for detail to ensure accurate data transcription. - Excellent time management skills are essential as deadlines are strict. Although this position emphasizes manual data entry skills, experience in data cleaning and validation pave the path for optimal efficiency. The successful candidate must provide proof of prior similar projects. Your ability to maintain high standards of accuracy and confidentiality ...

I'm looking for a seasoned data scientist with a strong background in machine learning and healthcare. The objective of this project is to analyze public health data and identify discrepancies in the patient's health records. Key project details: - We will be using public health datasets as our primary source of data. - The main focus of the project would be to identify discrepancies within the patient's health records, especially issues related to CBC reports like low RBC or WBC counts. - Create a webapp interface with ML functioning integrated. The ideal candidate should: - Have a proven record of working on machine learning projects with a healthcare application. - Be proficient in data analysis, specifically in working with public health datasets. - Demonstrate...