Mini project gps using java jobs

I am struggling Integrating Canvas with Imathas using a developer key. Need someone with LTI 1.3/Canvas experience to troubleshoot.

...who can unlock interesting trend patterns within a dataset using machine learning models. Your expertise will be instrumental in making sense of the underlying trends that the raw data contains. The main responsibilities will include: - Scrutinizing the datasets rigorously in order to identify trend patterns - Deploying machine learning models for an in-depth analysis The nature of the data is undisclosed at this juncture, which adds an element of challenge to the project. Therefore, a flexible analyst capable of working with different data types will be ideal for this role. Remember, the key objective is to highlight trend patterns within the given dataset efficiently and accurately. Someone with experience in data analysis using Python, as well as a comprehen...

Please Sign Up or Login to see details.

I'm in need of a skilled professional who can help in segmenting brain CT images for disease diagnosis. Here's a more detailed explanation of the project: - Purpose: The primary goal of this project is to assist in diagnosing diseases using CT images. The segmentation process needs to be precise, as it plays a critical role in identifying abnormalities accurately. - Expected Accuracy: I'm looking for a moderately accurate segmentation, as this will primarily be utilized for research purposes. The results should be reliable and consistent. - Image Type: The CT images to be segmented are specific to the brain. Therefore, experience with this type of image segmentation is highly desirable. Ideal Skills and Experience: - Proficiency in medical image segm...

Project to create a digital memorial (mini social network) platform for people to honor their loved ones. Our prototype is ready, and we'll develop it using C#/.NET for robustness and scalability. Link to website prototype: (Copy)?type=design&node-id=0%3A1&mode=design&t=jfwDURBhWcI72r1x-1 You don't need to strictly adhere to the prototype design; it's meant to showcase the elements within it.

I need an AEM expert with specific experience in Dynamic Media implementation, as well as strong Java, Vue, and JavaScript skills. The project will involve a mix of backend and frontend tasks, and I'm looking for someone who can work with me on this for 3-6 months. Key Requirements: - Adobe Experience Manager (AEM) expertise - Dynamic Media implementation experience - Strong Java, Vue, and JavaScript skills - Ability to work on both backend and frontend tasks - Available to commit to 3-6 months of work Please only apply if you have the appropriate skills and are able to commit to this time frame.

I'm looking for a skilled Java developer to integrate the Coinbase, Kraken and many other cryptocurrency APIs into my project. Key Objectives: - Integration of Coinbase, Kraken APIs and many other's exchanges api's - Implementation of wallet balance retrieval functionality Ideal Skills: - Proficient in Java programming - Experience with cryptocurrency exchanges and APIs - Prior work with well known crypto exchange's APIs preferred - Strong understanding of API integration and security Please provide examples of similar projects you've worked on and your approach to API integrations. Your ability to meet the project's technical requirements and ensure security will be crucial.

I'm searching for a skilled A...construct an application similar to Instagram, focusing specifically on photo and video sharing features. Only front end work is required. Ideal Skills and Experience: - Android Development - Java or Kotlin - Familiarity with Instagram's functionality - UI/UX design implementation from provided specifications Tasks: - Implement a robust photo and video sharing feature - Translate my specific UI/UX design into an engaging user interface. I welcome developers with a solid track record in building interactive and aesthetically pleasing Android applications. It's essential to be proficient in either Java or Kotlin and have a solid understanding of Instagram to replicate its user experience successfully. Let's create a vi...

...will be: - Create a small demo App using VB.NET to illustrate implementation of both Ashlar and Microscopy Image Stitching Tool. You're free to employ placeholder images or your own sample images. It's essential that you're adept at using ASHLAR and MIST for seamless task execution. Your bid should evidence your understanding and experience in these software along with VB.NET. Ready to use explanation are available on various sites : Purpose is to understand and learn these two techniques, in VB.NET. It is quite possible that we may find an expert of ASHLAR, but they may not know VB.Net. ASHLAR and MIST are both in JAVA... I will accept if some one can make

I'm searching for a proficient PHP developer, armed with Javascript, MySQL, and API handling talents for my project. I aspire to build a custom jobs module on a site hosted using social networking script. • Essential Competencies: 1. Comprehensive module development 2. Expertise in PHP and Javascript 3. Firm understanding of MySQL and APIs • Project Objectives: 1. Job Search Functionality: Incorporate an effective search feature powered by job title or keyword, location, and industry or department filters. 2. Resume Submission and Storage: Establishment of a user-friendly interface that allows effortless resume submission and secure storage. 3. Application Tracking System: Implementation of a reliable tracking system to manage and monitor applic...

Please Sign Up or Login to see details.

I need a custom bot that can operate within ChatGPT, utilizing my custom PDF resources to provide accurate and relevant responses. Key Requirements: - The bot should be able to search all of my PDF documents simultaneously. This is crucial as the information I will be querying could be spread across a range of ...familiarity with ChatGPT. - Proficiency in creating and implementing systems for data retrieval from PDF documents. - A strong understanding of natural language processing and the ability to create systems capable of understanding and generating complex, full-text responses. I need the bot to be able to provide accurate and relevant responses, so it's important that the freelancer who works on this project has a keen eye for detail and a solid understanding of the ...

I need a smart attendance system for College Student , main focus is Attendance on Different subject like DBMS , PYTHON , JAVA , Etc which utilizes facial recognition technology. Like I want to take Attendance for all the subjects, so in take attendance there should be a option or drop down for the list of Subjects You want take the Attendance Key Elements: - On the main page/home page I need user to register with there Name, Id ,Phone number - And then a Button to take attendance on different subjects using Facial Recognition , in which there should be a option or drop down for the list of subjects - And one main Feature is to show a Pie chart which represents how many students has attended DBMS class , Python class etc - Attendance should be saved in XL Sheet and Pie ...

I'm seeking a skilled developer to create a multi-platform taxi app for iOS and Android. This app is intended for use by passengers, drivers, and administrators. Key Features required: - Real-time location tracking - Fare estimation - Online payment capabilities The ideal freelancer for this job has experience in app development specific to...developer to create a multi-platform taxi app for iOS and Android. This app is intended for use by passengers, drivers, and administrators. Key Features required: - Real-time location tracking - Fare estimation - Online payment capabilities The ideal freelancer for this job has experience in app development specific to these platforms, and ideally with these functionalities. A deep understanding of GPS and payment gateway integra...

I need a proficient mobile app developer to design a unique Android camera app with integrated flight-specific data. The core capabilities of this app should include: - The automatic stamping of location and time on photos taken within the app. This needs to happen seamlessly during the photo captur...display specific details of flights as sourced from a reliable flight tracking platform like Flightradar. The ideal candidate for this role should have: - Extensive app development skills, specifically on the Android platform. - Previous experience in integrating third-party APIs into mobile applications, particularly in relation to flight data would be beneficial. - A keen understanding of efficient GPS locating and time-stamping techniques. - Good eye for intuitive and user-friend...

I'm in need of a Python developer to assist me with web scraping. The data I'm after is sourced from APIs and once extracted, it needs to be stored in a CSV file. Key Requirements: - Proficiency in Python - Experience with web scraping - Knowledge of working with APIs - Ability to store scrapped data in a CSV file Ideal Skills: - Familiarity with popular Python libraries for web scraping, like Beautiful Soup or Scrapy - Understanding of API integration and usage - Strong data handling and manipulation skills It's a straightforward task that needs attention to detail and adherence to best practices in web scraping. If you have the right experience and are keen to assist, I look forward to hearing from you.

I'm seeking an expert in simulation and thermodynamics who can carry out in-depth analysis of a small-scale photoelectrochemical reactor intended for green hydrogen production. The main objectives are to: - Optimize the efficiency of hydrogen production - Gain a deeper understanding of how various parameters impact the reactor's performance - Design a more cost-effective model of the reactor Your thermodynamic analysis should encompass both Gibbs free energy analysis and Exergy analysis. Experience in designing and improving small-scale reactors and a solid understanding of anion exchange membranes would be advantageous. Moreover, knowledge of both thermodynamic analysis methods mentioned is essential. Your contributions will be vital in enhancing our green hydrogen product...

I need an AEM expert with specific experience in Dynamic Media implementation, as well as strong Java, Vue, and JavaScript skills. The project will involve a mix of backend and frontend tasks, and I'm looking for someone who can work with me on this for 3-6 months. Key Requirements: - Adobe Experience Manager (AEM) expertise - Dynamic Media implementation experience - Strong Java, Vue, and JavaScript skills - Ability to work on both backend and frontend tasks - Available to commit to 3-6 months of work Please only apply if you have the appropriate skills and are able to commit to this time frame.

I created Java app that create google calendar event via api. I've got below error POST { "code": 403, "errors": [ { "domain": "calendar", "message": "Service accounts cannot invite attendees without Domain-Wide Delegation of Authority.", "reason": "forbiddenForServiceAccounts" } ], "message": "Service accounts cannot invite attendees without Domain-Wide Delegation of Authority." I think it's a problem service account. I want to do it till end of 11.05.2024 Project realization via shared desktop

We developed custodial wallet using Kotlin, JAVA, Node.js, etc. and when we click the send button coins cannot be sent. Please check and fix the issue. apk backend admin panel

...bugs across multiple software systems. The ideal candidate(s) will have expertise in Java (specifically Swing), FileMaker, Artificial Intelligence, Django, and general web development. This project involves analyzing the current issues, proposing solutions, and implementing fixes in a timely manner. Key Tasks: - Analyze existing codebases to identify bugs and inefficiencies. - Develop fixes for bugs in systems built with Java Swing, FileMaker, Django, and related web technologies. - Apply AI techniques to optimize operations and improve system functionalities where applicable. - Test fixes to ensure bugs are completely resolved and systems are running smoothly. Ideal Candidate: - Strong proficiency in Java, especially in Swing application development. - Ex...

Hi. I need help to setup the binding for a RichTextBox .NET Control so that data is retained. There may be use of VBA that is needed. This is within a F...user opens popup for Valve #3, I need a text box field in that popup for the user to enter data, and then data is preserved/saved. That popup should be one common FTV display that references the Valve_# that was selected (using parameter files, or...). This example is the main objective. I need a simple and easy solution to this, and I need to understand how to do it myself afterwards. This is perhaps a 1 hour job. My name is Marc. I'm ready to start now. I hope to use the LoadFile method which references a .txt or .rtf file. Then I can manipulate the data using NotePad (simple). I've tried but can&#...

I'm seeking an experienced Android developer for the creation of a personal car share application. Key Features: - User Registration and Login: The application should allow users to register and log in to their accounts. - GPS Tracking and Mapping: The app must have GPS integration to enable real-time tracking of both the car and the user's location. - Payment Integration: The app is expected to have a payment gateway to facilitate transactions between users. If you've previously worked on similar applications or have the necessary skillset to bring this to life, I'd love to hear from you.

...functional on both iOS and Android platforms. Since the primary function was not specified, creativity and ability to design multi-purpose apps will be highly appreciated. Key Requirements: - Strong experience in developing mobile apps for both iOS and Android - Proven experience in cross-platform mobile app development - Proficient coding skills in languages such as Swift, Kotlin, Objective C and Java - Exceptional UX/UI design skills - Strong problem-solving abilities, with a knack for complex troubleshooting tasks - Ability to work independently, with minimal supervision While delivering the final product, I'd also like you to provide the source code along with necessary documentation. If you've worked on similar projects, please include them in your proposal....

I'm seeking someone to help me c...Points: - The purpose of this event is to reconnect with old classmates, and having a fascinating timeline from our school years will certainly spark conversations and nostalgia. - For the content, I want to include the introduction of personal computers, the invention of the internet, the mobile phone revolution, the social media boom, the smartphone era, the advancements in artificial intelligence, GPS, cloud computing, 3D printing, AI, blockchain technology, and renewable energy. Ideal Freelancer: - A tech-savvy individual with a strong understanding of the major technological changes from 1984 to 2024 - Proficient in creating engaging and visually appealing timelines - Prior experience in event planning or content creation for reunions w...

I am in need of a skilled individual who can meticulously extract table data from approximately 7500 pages of PDF files and transfer the data to Excel. The PDF tables are consistent across all pages, maintaining a fixed ...is primarily text-based as opposed to numerical. Necessary Skills and Experience: - Excellent attention to detail - Proficiency in optical character recognition (OCR) processing - Experience with data scraping or extraction - Valuable skills in MS Excel - Familiarity or experience with PDF data extraction software Swift and accurate execution is essential for the successful completion of this project. Please only apply if you are comfortable handling a high volume of pages and can ensure that no data is lost or incorrectly transcribed in the transition from PDF...

I have a set of scripts that I need pushed onto GitHub. I'm looking for someone to help me with this task. - You'll be working with scripts written in Python, JavaScript, or Java, which I will share with you. - The main goal of pushing these files on GitHub is for Version Control. This will allow me to keep track of changes made to the scripts, and potentially roll back to previous versions if needed. It's important that you have a good understanding of GitHub Finally, although I do need the repository to follow basic branch naming conventions and workflow rules, I don't need anything overly complicated. A simple, easy-to-follow convention will suffice.

I have a set of scripts that I need pushed onto GitHub. I'm looking for someone to help me with this task. - You'll be working with scripts written in Python, JavaScript, or Java, which I will share with you. - The main goal of pushing these files on GitHub is for Version Control. This will allow me to keep track of changes made to the scripts, and potentially roll back to previous versions if needed. It's important that you have a good understanding of GitHub and Version Control concepts. Finally, although I do need the repository to follow basic branch naming conventions and workflow rules, I don't need anything overly complicated. A simple, easy-to-follow convention will suffice.

We are ...function to import data from Excel files (.xls or .xlsx) into the app. The import functionality should be similar to the existing "Fuel Injection Price List" section within the app. Ensure data integrity and proper handling of potential errors during import. Implement appropriate user interface elements for file selection and import initiation. Skills Required: Android development expertise (Java/Kotlin) Experience with data parsing and Excel file handling libraries Understanding of user interface design principles for Android Strong problem-solving and debugging skills We are open to discussing different implementation approaches and libraries. Please submit your proposal outlining your experience, technical approach and estimated timeline. We look forward ...

I have an Excel dataset that I'm looking to augment primarily to increase its dataset size using Python . This is in the context of machine learning modeling, so the main objective is to ensure I have enough varied data to train my models effectively. Key Responsibilities: - Implementing data augmentation techniques for numerical data in Excel format - Expanding the dataset significantly while keeping the integrity of the original data ( Read the word file attached)

...React developer, or a Full Stack developer proficient in React JS and Java/Spring. The goal is to create a personal food ordering app, which would facilitate online ordering of food. Key Features: - User Registration and Login: The app should allow users to sign up, log in, and manage their account. - Browsing and Ordering: Users should be able to view a menu, search for items and place orders. - Cart and Checkout: The app will need to have a cart feature and a seamless checkout process. - Order Notification: The app should send orders to the restaurant and have the functionality for the restaurant to either accept or reject the order. The successful freelancer for this project should have a strong proficiency in React JS, Java/Spring, and experience in developing...

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 have Excel sheet in the are all products added with all the categories in it. I will also share a word file in which I will add that specific category and you have to take out the data from sheet and create the image in Photoshop. I will also give you product images with it's specific name. You have to only remove background and add text and image according to the data. The person must have latest Photoshop and have to create one sample image. You have to leave the space also for the main video and have to choose a shape or space according to the data Here are the links to sample: My budget is Rs.50 per image. There are 10-11 images which you have to create and I need it by today. This will be regular work per week to create 10-15 images.

I'm seeking a knowledgeable Node.js to create a specific function. This function should examine a pre-existing React file to identify any import statements that may be missing and automatically add the missing imports. Key responsibilities: - Analyze the React file to identify missing import statements - Add the identified missing imports automatically - Append multiple missing imports as grouped together in a single statement - Code should be in Typescript This task requires a solid understanding of Node.js. Having previous experience with jscodeshift is a must. The solution also need to use a package named @hypermod/utils. () This is the function that I need function fixMissingImports(code: string, importsMapping: Record<string, string>): string The code is a string of a...

I am searching for a freelance Google GPS navigation developer to customize the UI, integrate additional features, and rebrand it under our rideshare company, Turvy. Here's a comprehensive guide that outlines the necessary steps to accomplish this customization: [Link to Google Maps Navigation SDK documentation](). The primary requirement for this customization is to adjust the UI colour to match our brand identity. The specific colour code we need to incorporate is #090949. Please take note of the following important points before proceeding: 1. **Experience Requirement:** Only developers with prior experience need to apply for this project. We expect candidates to provide samples of their previous work for

...phone's live GPS location and view messages from messaging apps. Key Components: - GPS Tracking: I need to monitor the target phone's real-time location. This should be accurate and updated regularly. - Message Access: It's crucial for me to view messages from messaging apps on the target phone. This includes both incoming and outgoing messages. Key Features: - Stealth Mode: The app should be undetectable on the target phone. The target user should not be able to see that their phone is being monitored. - Secure Access: The app should provide a secure way for me to access the GPS location and messages. Only I should have access to this data. Ideal Skills and Experience: - Proficient in iOS app development, with experience in creating secure and eff...

I aim to create entertaining, cartoonish, character-based animations, utilizing software such as Blender3D, Maya, or Cinema4D. - Purpose: The project is intended to generate animated content for entertainment. - Animation Style: Looking for unique, playful, engaging cartoon-style animations. - Key Elements: The animation will feature specific characters. A freelancer with experience creating cartoon-style animations and character modeling would be perfect for this project. Understanding storytelling and the ability to capture the audience's attention through animation is critical. As an example of one of the videos, you can be tasked to create cute and entertaining 3D videos of cartoon farm animals (think Peppa Pig or similar) playing with each other, with a foc...

I'm looking for a talented JavaScript developer who can help me with my website's visualization. Key Responsibilities: - Crafting visually appealing loading screens or animation - Implementing various types of visualizations Ideal Skills: - Proficiency in JavaScript and related libraries - Experienced portfolio of visualizations and/or animations See attached brief for more information

I'm seeking an expert in reinforcement learning to develop a control system for a differential r...seeking an expert in reinforcement learning to develop a control system for a differential robot in a simulated environment. The project will be implemented in Python. Key Requirements: - Develop a control system using reinforcement learning for a differential robot - Implement and test the system in a simulated environment - Provide clear documentation and code comments Ideal candidates should have: - Proven experience in reinforcement learning and robotics - Proficiency in Python and familiarity with any relevant libraries - Ability to work in a simulated environment If you have experience in these areas and are confident in your ability to deliver a high-quality p...

...for a skilled analyst to delve into a set of transcribed texts and identify patterns and trends for my projects. Requirements: - Task: To conduct a comprehensive analysis of the transcribed texts using NVivo software - Purpose: The main aim is to identify patterns and trends in the data. - Data Organization: The text data is organized by topic. Deliverables: - A comprehensive report: This report should include a statistical breakdown of the identified patterns and trends. Ideal Skills and Experience: - Proficiency in NVivo software: The ability to effectively navigate and analyze data using this tool is essential. - Strong Analytical Skills: The analyst should be able to identify patterns and trends within the data. - Excellent Reporting: The report should be comprehe...

I'm in need of a skilled Web3 developer to assist with a range of tasks. Your main responsibilities will include: - Developing smart contracts...contracts - Building decentralized applications - Integrating blockchain technology You should be proficient in the following programming languages: - Solidity - JavaScript - Python Your experience with blockchain platforms such as Ethereum and Polkadot is essential. Specific experience with Binance Smart Chain is a bonus. You must also have familiarity with additional languages such as Go, Rust, Java, and Node.js. The ideal candidate should have a deep understanding of the Web3 ecosystem and be able to contribute to a variety of projects. Experience in full stack development and an understanding of blockchain security would be hig...

I have a WhatsApp service provider that provides chatbot and menu-based features. I'm looking for a freelancer to create an adapter that can integrate a different serv...I'm looking for a freelancer to create an adapter that can integrate a different service provider for live-chat on the same WhatsApp number. Key Requirements: - Develop an adapter for live-chat that supports real-time messaging, media file sharing, and chat history retrieval. - Ensure the chatbot dialog history can be passed to the live-chat as a transcript file. Ideal Skills: - Proficiency in Java, Springboot - Prior experience with WhatsApp service provider integrations - Strong understanding of real-time messaging and chatbot systems - Ability to ensure seamless data flow between chatbot dialog and li...

he developer should have the following skills and experience: 1. Proficient in Java, Kotlin and other programming languages; 2. Have a deep understanding of Android platform, familiar with Android SDK and related tools

...functional on both iOS and Android platforms. Since the primary function was not specified, creativity and ability to design multi-purpose apps will be highly appreciated. Key Requirements: - Strong experience in developing mobile apps for both iOS and Android - Proven experience in cross-platform mobile app development - Proficient coding skills in languages such as Swift, Kotlin, Objective C and Java - Exceptional UX/UI design skills - Strong problem-solving abilities, with a knack for complex troubleshooting tasks - Ability to work independently, with minimal supervision While delivering the final product, I'd also like you to provide the source code along with necessary documentation. If you've worked on similar projects, please include them in your proposal....

I have a legitimate need to hack and mirror a person's phone for investigative purposes. I need this done as quickly as possible. Key project requirements: - The target device is an Samsung, running the latest android version. - The hacking and mirroring process should be discreet and undetectable by the phone's owner. - I need a report on the target device's activities, including text messages, calls, social media interactions, and GPS locations and apps. Ideal freelancer: - Proven experience in phone hacking and mirroring. - Sound understanding of iOS and the latest smartphone technologies. - Ability to deliver results quickly and discreetly. - A good track record of maintaining client confidentiality. Please include examples of your past work in your app...

...Features: - GPS Tracking: The system should include real-time GPS tracking to ensure accurate location services for users. - Payment Gateway Integration: A secure and user-friendly payment gateway is crucial for the smooth functioning of the app. - User Rating and Review System: An essential feature that allows users to rate and leave feedback on their experiences with drivers, ensuring quality control and trust. Desired Platforms: - Android & iOS: I need the system to be compatible with both Android and iOS platforms for a wider reach and user base. In addition, I'd like to implement a few customizations and modifications to make the system unique. The system's design, user interface, and user experience should be attractive, intuitive, and easy to navigat...

...Python, Java, or C++ will be a plus. Though the user has not provided insights into the specific features desired for this project, common elements of search engines include web crawling, indexing, and ranking algorithms. Your familiarity with these or willingness to research and incorporate them will be essential to your success in this project. The user did not specifically state the purpose of the search engine, however it could be for personal, business, or educational use. Balancing these needs could be a crucial part of the project. Skills and Experience Needed: • Knowledge of search engine architecture: web crawling, indexing, and ranking algorithms • Strong problem-solving capabilities • Excellent communication skills to understand th...

I'm seeking an experienced freelancer to debug and build my GitHub actions for 2 of my Android Java projects. The main task involves using building variants of my android application for the "development", "staging", and "production" environments which will all have separate API endpoints, package names, and app icons. Experienced Android Java programmers with a solid understanding of GitHub action builds, API implementation, and flexible design skills will be the ideal fit for this project.

I'm looking for a IoT/WSN security professional to address a Hatchetman attack vulnerability on a RPL protocol network using 6LoWPAN technology. The goal is to implement two robust security solutions that to prevent hatchetman attack occurrence in RPL routing protocol. Ideal Skills and Experience: - In-depth understanding of RPL routing protocols, Contiki 3.0 and Cooja Simulator - Hands-on experience with 6LoWPAN wireless technology - Proven expertise in IoT/WSN solution design and implementation Key Tasks: - Implement Hatchetman attack in Contiki 3.0 - Implement Resolution of Hatchetman attack using 2ACK scheme. - Implement Countermeasure to Hatchetman Attack using Multiple Encryption - Evaluate the two solutions with each other and with the standard RPL (RFC...

I'm looking for a seasoned full stack developer with a solid background in AI and mobile development. As the platforms for deployment will be iOS and Android, prof...and Android, proficiency in programming languages that support these platforms is required. Responsibilities: - Develop an AI psychologist application for iOS and Android platforms. - Apply machine learning techniques. - Build an efficient, testable, and reusable code. Ideal Skills: - Experience with AI, Machine Learning, iOS, and Android app development. - Proficiency in Python, JavaScript, and Java would be ideal but it's not required. - Deep understanding of mobile development frameworks. Don't hesitate to apply if you are experienced with building AI apps for mobile platforms. I look forward to a ...