Golf ball machine jobs

I'm in need of a seasoned Data Science Trainer who can cover extensive topics, with a strong grounding in machine learning along with data visualization and statistical analysis. With a target audience of professionals, I seek bespoke, advanced level training. Hours of commitment are flexible, so ideally you would be able to accommodate varying schedules. Skills and experience necessary for this project: - Expertise in machine learning concepts and applications - Proficiency in data visualization techniques - Well-versed in statistical analysis - Experienced in teaching professionals - Open availability Note - 8+ years of experience required as a data scientist Take only Only weekend Classes for Work Professionals

I'm seeking a skilled data scientist or machine learning engineer to help me with a project on fraud detection. Key Points: - The purpose of the project is to identify fraudulent activity in a social network. - The dataset will be provided in CSV format. Before applying Graph Neural Networks (GNN) for node classification, there are specific feature engineering tasks that need to be completed. Ideal Skills: - Strong background in machine learning, particularly with graph neural networks and node classification. - Experience with feature engineering specific to time-based data (e.g., Von Mises distribution). - Familiarity with fraud detection techniques and best practices in the field. I'm looking to have this project completed as soon as possible. Please only app...

I'm in need of a skilled python developer who can craft a bot that generates proposal outlines based on a set of keywords I provide. Key Requirements: - The bot should be able to analyze a set of keywords...a set of keywords I provide. Key Requirements: - The bot should be able to analyze a set of keywords I provide and generate a preliminary proposal outline accordingly. - This outline should be based on basic templates with placeholders that will later be edited by me to fit the specific project. The ideal candidate for this project should have: - Proven experience in developing AI, NLP, and machine learning algorithms. - Strong Python skills, particularly in the area of developing bots. - Excellent communication skills and the ability to understand and implement detaile...

I am looking for a skilled animator to create a Rive Animator for me. Key Features: I am seeking a skilled Rive Animator to create 3D designer to create an avatar based on a specific design of a Saudi gentleman wearing traditional attire. State Machine experience will be important. This avatar will integrate with our AI voice agent and will require precise lip-sync functionalities to enhance user interaction. I will provide the avatar, it needs to recreated in Rive. Compatibility: - The primary platform for this project is web browsers. Therefore, I need the animator to ensure that the animations are optimized and run smoothly on all major web browsers. Project Goal: - Recreate a cartoonish 3D avatar based on provided specifications. - Ensure the avatar's mouth is capable of...

I need a designer to create a captivating and informative poster intended for adults. The objective is not to promote a product or cause, but to provide relevant information. Key Requirements: - Adhere to the principles of good design and maintain a professional look that appeals to adults. - Manage to convey a significant amount of information without overwhelming the viewer or compromising on attractiveness. - Due to incomplete details on the aesthetic preference, the designer should be skilled in adapting design styles as feedback is provided. Ideal Designer: - Excellent command of visual hierarchy and designing informative materials. - Experienced in graphic design, specifically in posters for adult audiences. - Open to iterative process and able to adapt designs based on feedba...

I'm looking for a professional handle translation from English to Turkish. No Google translator should be used or any translating machine otherwise it will be rejected.

...encapsulates a cryptocurrency theme. In detail, the task comprises: 1. Logo Enhancement: I require an expert in graphic design who can improve the existing design elements of my logo, taking care to keep its original essence intact while enhancing its visual appeal. Specifics include: -Ensuring transparent logo / background is pure black (slightly off black now as it's generated with AI -Replacing the ball in the middle/top with a flame -Replacing "A1K" text with new and modern/appropriate text -Ensuring the outer logo aspect is perfectly round (currently appears offset) 2. Twitter Banner Creation: The style I'm aiming for with the Twitter banner is cryptocurrency-themed. It should be professional yet eye-catching, designed to capture attention in a fast-pac...

I need a seasoned GNN specialist, highly skilled in machine learning and data analysis. The project requires support as domain expertise, rather than specific application to finance, healthcare or marketing. Key Responsibilities: - Act as a domain expert - Guide through broader concepts of GNN Ideal skills and experience: - Proficient in Machine Learning - Strong Data Analysis abilities - Deep understanding of Graph Neural Networks - Prior experience acting as a domain expert within GNN projects would be a bonus.

Hi Parham B., I have another shop drawing that needs to be completed. I am still waiting for the other to be confirmed on our machine. But I will need this one completed to be signed off this week.

I'm looking for an expert to help me set up a Human-Machine Interface (HMI) to control AC motors on a test bed. Specifically, the motors to be controlled are AC, and the primary goal of the HMI will be to adjust the motor parameters. Key Requirements: - Proficiency in setting up HMIs for industrial control systems - Experience with AC motor control - Knowledge of KEB F5 drive control is highly beneficial Communication Protocol: As I have no specific preference for the communication protocol, I am open to suggestions based on your expertise and experience in this field. Please provide details of your relevant experience and how you plan to approach this project in your proposal.

I need to record a professional video about 30 seconds long Promote a game using Apple Vision Pro In it, there will be a person sitting on the sofa and surfing Twitter using Apple Vision Then a Pokemon ball appeared in her hand, and she threw it at the screen

I'm in need of an expert in Machine Learning who can successfully build a Language Model for me. Train this LLM on data that I'll provide. The key specifics about the project involve: - Data Handling: My data currently lies in PDF format. Therefore, you need to be proficient in working with PDF data and possibly transforming it for the training process. - Database Knowledge: The data is stored in a MySQL database. You must have experience working with MySQL databases and effectively extracting data from them. - Document Types: This project solely revolves around PDF documents. I require somebody with a proven track record of handling and working with PDF data. Skills required: Machine Learning, MySQL, knowledge of handling PDF data and documents.

I am seeking a highly skilled professional to migrate our existing Windows Active Directory from an on-premises setup to a new Virtual Machine (VM) located in the cloud. Specifics of the current setup cannot be provided at this point, but the ideal candidate should be prepared for a potentially complex environment. The current AD is sitting ON Premises with a Public IP. We wish for the new AD VM to also be on Public IP

I'm in need of someone with solid expertise in predictive modeling using machine learning and artificial intelligence. Key Project Details: - The project's primary aim is to create a predictive model. - The model will work with data, though the specifics are not provided. - The expected accuracy level for the model has not been specified. The ideal candidate should: - Possess considerable experience in creating predictive models. - Have a strong background in machine learning and artificial intelligence. - Be able to adjust model creation strategy based on type of data to be used. - Have a history of delivering effective predictive models. Please provide examples of your previous work in the field and any relevant qualifications that showcase your capacity for...

I am in need of an expert who can create a Virtual Machine (VM) in Azure utilizing Ubuntu Preferred Skills: - Experience setting up VMs in Azure - Comfortability with varying versions of Ubuntu - Ability to work with minimal direction by making recommendations where details have not been specified.

I am in need of a Programmer who is experienced in Python, Machine Learning , SQL and have working knowledge of full stack development. We need someone who can help us training a LLM coding assistant. You would not be working on coding side of LLM, you would be working mainly on creating conversations for a programming problem to train LLM. Ideal Skills and Experience: - Proven expertise in Python programming and Django framework - Hands-on experience with Scikit-learn library for model training - Demonstrated knowledge and experience in Machine Learning and AI Model Training - Working knowledge of ReactJS & NodeJS If you think that you fulfill above criteria. I would be more than happy to talk to you.

...and orchestration. Optimize GPU computing resources and implement monitoring systems to track performance and system health. Collaborate with product teams to define and refine system architecture, ensuring seamless integration across AI and blockchain components. Requirements: Bachelor’s or Master’s degree in Computer Science, Artificial Intelligence, or a related field. Strong proficiency in machine learning, deep learning frameworks, and blockchain technologies. Extensive experience with server management and cloud platforms (AWS, Azure, Google Cloud). Proficient in containerization and orchestration tools (Docker, Kubernetes), and infrastructure as code (Terraform, Ansible). Excellent coding skills in Python, C++, Solidity, or other relevant programming languages...

I'm looking for a skilled AI developer who can help me enhance user experience through the implementation of Machine Learning (ML) of 2D Sound Motion Technology technology for American Accent. The primary goal of this project is to make our product more user-friendly and engaging. Key requirements for this project include: -Personalized Learning: AI can analyze a learner’s progress and tailor the 2D visualizations to focus on sounds that need more practice1. -Automated Feedback: AI can provide instant feedback on pronunciation, comparing the learner’s attempts with the ideal sound production visualized by the 2D technology1. -Interactive Exercises: AI can create dynamic exercises that adapt in real-time to the learner’s responses, making the learning proc...

I'm looking to set up a Debian system, install Docker, and then Home Assistant for me. - The initial task involves configuring a Debian-based machine. This will require expertise in Debian, including experience with the system's configurations and best practices. - The next step would involve setting up Docker. My intention is to use containers for various purposes. I'd appreciate if you could advise on the most suitable options, given that the specific use cases for the containers have not been provided. - Lastly, you will install and configure Home Assistant. My main goal for this is to have home automation, security monitoring, and energy management capabilities. - The devices I plan to integrate with Home Assistant include smart lights, smart thermostats, a...

The task involves integrating a machine learning model, specifically in the ONNX format, into a Flutter application to enable text classification into five categories based on user descriptions. This requires the development of a custom Flutter plugin that facilitates communication between Flutter's Dart code and native code on both Android and iOS platforms. The plugin will utilize the ONNX Runtime to handle the loading and execution of the model, with the Flutter application calling this plugin to process and classify text inputs. (My budget is no more than 30 euros but i will habe 3 models on the same application if you are successful so please do not waste both of our time if you dont have time or dont agree with the budget.)

...high-quality game objects for my project. Key objects include a club set for a club environment, as well as various types of golf sticks. The candidate should: - Expertise in 3D modeling software and techniques - Creative and imaginative in designing 3D objects - Previous experience in creating game assets/animations - Ability to follow design guidelines and coding standards - Strong communication skills and ability to understand and translate requirements. - Since the game converter 3d file tools only recognize from format file .MQO, candidate must understand how to operate 3D Application such as Metasequioa ( ) Understanding our term of product: 1 Golf Clubset Product consist of 4 items such as 1 file for wood, 1 file for iron, 1 file for wedge, 1 file for putt and 1...

I'm in need of a logo that seamlessly combines both text and icon elements. It will be primarily used in an online setting, specifically on websites and social media platforms. Key Requirements: - Your design should encompass a modern, sleek, and professional style that resonates with the tech-savvy online audiences. - The color scheme I'm looking for is a b...theory and the ability to create aesthetically pleasing color combinations. - Strong communication skills to understand and incorporate my vision into the design. BRIEFING: The logo needs to be elegant with letters that convey elegance and sophistication for an online Tattoo course for beginners. Name: TATTOO STARTUP. I would like the icon to have something related to tattooing, like a tattoo machine in vector.....

...the error so Jasper report operates smoothly - Ensuring future dependency issues can be prevented or quickly resolved The ideal candidate should possess knowledge of JasperReport Library, possibly having handled Jasper report issues before. As the error is based around dependencies, an understanding of relevant dependencies for Jasper Reporting is a plus. Freelancer should work remotely on our machine to fix the error through anydesk Error : Failed to read the project description file (.project) for 'MyReports'. The file has been changed on disk, and it now contains invalid information. The project will not function properly until the description file is restored to a valid state. at

I'm looking for a skilled mechatronic engineer who can help me develop a custom food vending machine. This machine, based on my concept, should primarily cater from frozen food to food made ready to eat. Key requirements: - The machine should automate the vending process. - It must be designed to store and dispense the specified food items. -I require design drawings, 3D models, and a fully functional vending machine prototype sample machine As my vision is quite specific, it's important that you have experience in working on similar mechatronic projects. Your expertise in robotic arm control, sensor integration, and automated assembly will be pivotal in bringing this idea to life. If you feel you have the skills and experience to make th...

Need a native Japanese translator for our long term project from English to Japanese translation. Please bid only native bidders. No agencies or firm and not allowed any google or machine translation. Budget: Depend on the quality Deadline: Asap

...Google Cybersecurity Professional Certificate | Google - View Credential Machine Learning Engineering for Production (MLOps) Specialization | - View Credential Deep Learning Specialization | - View Credential SKILLS Programming: Python, JavaScript, RUST, Golang, C, C++ Frontend Development: HTML, CSS, JavaScript, ReactJs Responsive design, Cross-browser compatibility Web performance optimization Backend Development: , Flask, RESTful API Microservices, Websockets, OAuth Nginx server management, Kubernetes, Kafka CI/CD integration Databases: RDBMS (MySQL, PostgreSQL) NoSQL (MongoDB) Query optimization, ORM/ODM (SQLAlchemy, Mongoose) Data warehousing, Distributed systems Machine Learning: Deployment Pipelines, Production management Data and Model Pipelines

We are seeking a Microsoft Autogen Studio expert to join our team on a freelance basis. As a Microsoft Autogen Studio expert, you will be r...for our clients. Responsibilities: Design and develop Microsoft Autogen Studio systems for a variety of use cases Train and fine-tune Microsoft Autogen Studio models Integrate Microsoft Autogen Studio systems with existing workflows Provide ongoing support to clients Qualifications: Experience with Microsoft Autogen Studio Proven ability to design and develop AI models Strong understanding of machine learning principles Excellent communication and collaboration skills Benefits: Competitive hourly rate Flexible work schedule Opportunity to work on cutting-edge AI projects Be part of a growing and innovative team To Apply: Please submit you...

We are seeking a CrewAI expert to join our team on a freelance basis. As a CrewAI expert, you will be responsible for designing, developing, a...responsible for designing, developing, and deploying CrewAI systems for our clients. Responsibilities: Design and develop CrewAI systems for a variety of use cases Train and fine-tune CrewAI agents Integrate CrewAI systems with existing workflows Provide ongoing support to clients Qualifications: Experience with CrewAI Proven ability to design and develop AI systems Strong understanding of machine learning principles Excellent communication and collaboration skills Benefits: Competitive hourly rate Flexible work schedule Opportunity to work on cutting-edge AI projects Be part of a growing and innovative team To Apply: Please submit you...

I'm seeking a beginner-level content writer who is excited to delve into the topics of Data Engineering, AI Algorithm Development, Data Analysis Methods, Data Engineering tools, Machine Learning, LLM (Languages and Learning Machines), and Modern Data architecture including Tools and Libraries. Though you'd be starting at a beginner's level, a flair for tech-related topics and a will to learn can more than compensate for any lack of depth in these specific areas. Ideal Skills: - Basic SEO content writing - Basic understanding and interest in AI & Data Engineering topics - Strong researching skills - Ability to translate complex topics into engaging content Your articles will resonate with Data Engineers, Data Analysts, and AI Professionals, assisting them in thei...

I'm looking for engineers to design a versatile food van that will be serving fast food, street food, and gourmet cuisine. Key require...to design a versatile food van that will be serving fast food, street food, and gourmet cuisine. Key requirements include: - Design a layout that accommodates the preparation of different types of food - Incorporate the necessary equipment for a small-scale operation that will only have 1-2 staff members working at a time. - Essential equipment to include are a deep fryer, grill, and espresso machine. Ideal candidates for this project should have experience in designing food trucks or vans, and have an understanding of different types of cuisine and the equipment required for it. Prior experience in designing versatile food service setups w...

I am working on a research project. I need more efficiency of the model that is already trained.

Dear Freelancer Community, VRAS (Virtual Reality Advanced Simulations) is an ambitious startup pioneering the future of defense training through cutting-edge VR simulations. We're currently seeking a seasoned Senior Machine Learning Engineer to join our team and lead our efforts in integrating machine learning technology into our VR simulations. This unique opportunity offers an equity-only partnership initially to facilitate the Proof of Concept (POC) phase. During this period, the partner's contribution will be instrumental in securing further funding, already committed by an investor. Upon successful completion of the POC, we'll transition to full time position at the company and a payment structure, starting at $6,000 per month for the first year with oppor...

...to enable accurate and insightful financial forecasting. - Advanced Level of Complexity: I'm aiming for a model that goes beyond basic calculations and projections. I want it to incorporate AI and machine learning techniques, allowing for predictions that are more predictive and dynamic. - Integration with Spreadsheets: The model should be able to successfully integrate with and manipulate data from existing spreadsheets. Ideal Skills and Experience: - Data Science: A strong foundation in data science is essential for this project. - AI and Machine Learning: Experience in developing AI and machine learning models, particularly for financial forecasting, would be a significant advantage. - Spreadsheet Integration: Proficiency in working with and integrating dat...

I am in need of a seasoned software engineer with specialization in Artificial Intelligence, Machine Learning, MS Copilot, Cloud Computing (Azure), MS Power Platform, SQL Server, iOS, Android, and comprehensive Microsoft technologies. Preference will be given to candidates in the USA time zone. Key Details: - Main Objective: The main goal of this project is to develop a new software application. - Platforms: The application will be developed for Web, iOS and Android. Ideal Skills & Experience: - Proficient in Artificial Intelligence and Machine Learning with a proven track record in similar projects. - Expertise in MS Copilot, Cloud Computing (Azure), MS Power Platform, SQL Server, iOS, Android, and Microsoft technologies. - Prior experience in developing cross-platfor...

I'm in need of a soundproof box that can be placed over a small chocolate machine. This box should not just mute the noise produced by the machine but also allow a free flow of air to prevent overheating. The box should also have a minimal volume, meaning it shouldn't take up too much space. Key Requirements: - Internal storage dimensions of the box should be approximately 14x14x22. - The material of the soundproof box is not pre-determined. Your recommendation for the most appropriate and effective material is welcomed. - The soundproof box should be designed to allow a free flow of air in order to prevent overheating of the small chocolate machine or so that active cool air can be introduced. - The top should open or slide off so that ingredients can be ad...

...produce optimised schedules for my business. The primary objective of this system is to enhance operational efficiency. Key Features: - Machine Learning: The system should be based on machine learning principles. - job swap Handling: A crucial feature is the system's ability to manage and accommodate job swaps. Staff should be able to drop jobs on a schedule while maintaining the overall operational efficiency. - Optimization: An essential goal of the system is to optimize schedules, ensuring that they are efficient and well-organized for the business's needs. Ideal candidates for this project should have a strong background in AI and machine learning, specifically in the context of workforce scheduling. Experience in creating similar systems an...

...aspects of thesis writing in Data Engineering and Machine Learning. Key areas where assistance is required: - Expertise in research methodology to help shape the foundation of my thesis and guide me effectively to carry out my research. - Skilled in literature reviews for significant studies in the field, ensuring a comprehensive and well-rounded foundation for my work. - Proficiency in data collection and analysis for gaining, organizing, and interpreting vital information, contributing to my comprehensive understanding of the topic. Additionally, I need hands-on support in data engineering, so expertise in this field is highly desired. An understanding of Google clouds will also be beneficial, given the nature of my project. For Machine Learning, an in-depth study of...

Hi I am looking for a graphic designer to create a logo for me. Attached find a quick mockup I made but I want the cheetah to be the same shape as the attached photo. I need to recreate the exact shape of the attached photo of a cheetah into a black and white outline of a cheetah logo similar to the mockups attached. I also want a tennis ball in front of the cheetah similar to the attached with "The Love Love Group" underneath.

I am working on a research project. I need more efficiency of the model that is already trained.

I am working on a research project. I need more efficiency of the model that is already trained.

I need a visual representation of the system architecture for my .ipynb file. This will be based on my approach using 3D CNN and Transfer Learning for Brain Tumor Classification. The main purpose of this diagram is to provide an overview of the system architecture, similar to how it is in research papers. It should be clear, detai...be clear, detailed and well-annotated to help me understand the flow of data and the various components involved in the process. Key Requirements: - The diagram should be in PNG format. - Include detailed annotations to help me understand the components, their interactions and the flow of data in the system. - Proven experience in creating architecture diagrams, especially in the context of machine learning or deep learning projects, would be highly b...

...syncing. - Utilize machine learning to categorize bank transactions accurately, providing reliable financial insights. - Ability to reconcile bank transactions, ensuring the accuracy of financial records. - The system should send detailed financial reports via email, keeping stakeholders informed. - Additionally, the script should be able to handle amortization schedules and other related uploads. - A feature for journal entries based on additional uploaded information, like amortization schedules, is needed. User Interface: - A user-friendly and intuitive interface is essential for this project. The system should be easy to understand and navigate for users with different levels of technical knowledge. Ideal Skills and Experience: - Extensive experience with AI and machine...

I need a versatile programmer who can work with Python, C or any other programming language to develop a system for identifying Distributed Denial of Service (DDoS) attacks with the help of machine learning algorithms. Skills and Experience: - Extensive experience in Python, C, or similar programming languages - Knowledge of Machine Learning algorithms - Experience in network security would be beneficial - Proven track record in detecting cyber threats in a small network environment. Your success will be judged by your ability to create a reliable, data-driven system capable of efficiently detecting DDoS attacks in a small-scale network.

...password recovery. You can use Firebase Authentication or other authentication services. User Profiles: Allow users to create and edit their profiles. Include features like uploading profile pictures, adding bio information, and setting preferences. Matching Algorithm: Develop a matching algorithm to suggest potential matches based on user preferences, location, interests, etc. You may consider using machine learning algorithms or predefined rules. Geolocation: Integrate geolocation services to find and display nearby users. This feature is crucial for matching users based on location. Swipe Gestures: Implement swipe gestures for users to indicate interest or pass on potential matches. This feature is central to the user experience in dating apps like Bumble. Chatting Functionali...

The project in the course is an application of the material covered within that course. The student should select a real-life project for which data is available. the team should do the following: - 1. Write a briefing statement about the current project and describe the surrounding circumstances. 2. Develop a complete WBS for the project 3. Develop a budget and show the budget using t...Recommendation- discuss your findings and conclude Note: in your attempt to build the WBS, or even the budget elements, provide a brief discussion of how you came up with your numbers, and show some demonstrations of your work by discussing some aspects for which the WBS, or the budget, have been developed Students who have no access to a case study may work on a simulation-related project using Crystal ...

I'm looking for a logo for my new Retro Golf Simulation game. The game has a nostalgic, classic feel throughout, and I'm looking for the logo to match this. Key Requirements: - Design: The logo has to be perfectly in line with the retro and vintage theme, so a strong understanding of retro design is essential. - Style: The logo needs to be fun and playful, without being too cartoonish. - Colors: The primary color scheme is open, but I'm looking for something that stands out yet remains true to the retro theme. Feel free to suggest colors that you think will work well. Ideal Skills and Experience: - Experience in game logo design, particularly simulation games. - A strong portfolio of retro or vintage design work. - Creativity and an eye for detail. - Excellent commu...

...to have the following features. - Create unique music based on user input information (speed, type, length...). - Create music based on the voice provided by the user - Change the voice of music provided by the user to the voice provided by the user Skills expected of you 1. Strong background in machine learning, deep learning, and neural networks. 2. Experience with audio signal processing and familiarity with audio data preprocessing techniques. 3. Proficiency in Python and experience with machine learning libraries such as TensorFlow, PyTorch, and Keras. 4. Knowledge of music theory and composition is a plus. 5. Experience with voice synthesis technologies such as WaveNet, Tacotron, or similar frameworks. 6. Familiarity with data augmentation libraries such as SpecAugm...

...stock market only, and I'd like to receive these alerts directly through mobile app notifications. Key Responsibilities: - Develop a system that monitors stock market movements in real-time - Generate alerts based on predefined criteria for entry positions - Implement a interface for delivering these alerts - Ensure the system is seamless, reliable and user-friendly - Ensure the systems have machine learning to continuously get better and improve Ideal Skills and Experience: - Proven experience in building real-time trading systems and indicators - Familiarity with the IG trading platform - Strong understanding of stock market dynamics - Previous work with integration for trading alerts for buy signals - Excellent problem-solving skills and attention to detail Please no...

I have a Python application which uses a pre-trained YOLOV8 model for detecting vehicles and some emergency vehicles like ambulances. However, we now want to add sound recognition to recognize siren sound of ambulances in th...detecting vehicles and some emergency vehicles like ambulances. However, we now want to add sound recognition to recognize siren sound of ambulances in the existing program. I need a skilled Python programmer to help me with this. Key requirements include: - Excellent Python skills, with experience in machine learning and AI - Good understanding of how YOLOV8 works This job requires a meticulous eye for detail and solid machine learning skills. Applicants must have prior experience in machine learning and computer vision projects, particularl...

I'm looking for a skilled writer to craft a comprehensive research paper on a topic related to Machine Learning, Business Intelligence, E-commerce, or any other suitable area. Here are the details: - Word Count: The paper should be a minimum of 50 pages. I'm looking for detailed, well-researched content. It should also have a Turnitin plagiarism score below 25% and 0% Ai. - Deadline: The paper needs to be completed within 1 month. - Citation Style: The paper should follow APA citation style. Ideal candidate for this project should have: - A strong background in Machine Learning, Business Intelligence, E-commerce, or a related field. - Exceptional research and writing skills. Previous experience in academic writing will be a plus. - Proficiency in APA citation st...