RxJava

The January Ohio North Database Training user group meeting will be held on **January 6th, 2025 at 5:00PM**. This will be a **HYBRID** event and we will be joined online by **Jason Romans**. You're welcome to come meet in-person at our meeting location, the offices of Improving at **[6000 Freedom Square Dr,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Unit 110,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Independence, OH 44131](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** [Teams Link ](https://teams.microsoft.com/l/meetup-join/19%3ameeting_N2Q3ODVjM2YtNDQ1NS00MDBjLWI5MzYtNDQ3YmFlZjkzMjAx%40thread.v2/0?context=%7b%22Tid%22%3a%22b966f302-6b93-4686-9041-c084635642c5%22%2c%22Oid%22%3a%2278c760cb-657f-46aa-bd2f-7066d9403bdb%22%7d)if anyone needs it after RSVP-ing for in person. If you would like to subscribe to our email list outside of Meetup, we have changed platforms recently and you will need to register [here in Kit ](https://ohio-north-data-training.kit.com/b8f036f615)instead to receive emails. Agenda: **5:00 PM EST**: Online and in-person meeting begins with a social hour. This is an unstructured hour where you can join us to catch up and meet other group members before the session starts. There will be food brought in for in-person attendees. **6:00 PM EST**: Updates and announcements, followed by our feature presentation. See below for presentation details. **7:30 PM EST**: Optionally after the main presentations, the in-person crowd may go out for snacks and drinks at a local establishment. We hope to see you there! Session Abstract **Data on Fire: A Hands-On Intro to Spark in Fabric** Curious about Apache Spark but not sure where to start? This hands-on session introduces you to Spark in Microsoft Fabric Notebooks—a powerful and accessible way to process and analyze big data using familiar tools in the Microsoft ecosystem. We’ll break down key Spark concepts like distributed computing, DataFrames, and lazy evaluation, then show how they come to life inside Fabric’s notebook experience. You’ll see practical demos that cover loading, transforming, and analyzing large datasets—while leveraging Fabric’s modern data stack, including OneLake, Dataflows, and Pipelines. You’ll also learn how to choose between Spark and pure Python notebooks in Fabric, based on execution needs, data integration, and use case fit. Whether you're a SQL pro, BI developer, or data engineer, this session will give you the tools and confidence to start using Spark in your own projects—no cluster management required. \*Please note, that we will be using Microsoft Teams for the online portion of this meeting. You may want to join a few minutes early to ensure you do not have any issues. If you are attending in person, there are large TVs at the office, and you do not need to bring a laptop or use Teams.

The market has changed—and pretending it hasn’t is expensive. At our **January COREE meeting**, learn the real strategies local investors are using to stay profitable, reduce risk, and avoid the mistakes that are causing others to quit. PLUS: A critical update on the **new Ohio wholesale law** and how it affects you. ⚠️ RSVP on Meetup does **NOT** register you. 👉 You must register at **[www.COREERocks.com](http://www.COREERocks.com)**

Bill Darling, Director of Assistive Technology Ohio (AT Ohio), will address the purpose and function of AT Ohio. Of particular interest to our group is likely their Device Lending Library. As taken from their website, AT Ohio's mission is to help Ohioans with disabilities learn about or acquire assistive technology. Assistive Technology refers to devices, equipment or services that assist individuals with disabilities to function independently in the areas of work, home or school. AT Ohio is NOT a grants-giving or funding organization. They do not assist in financing the purchase of any assistive technology. If you need funding for a device, they might be able to direct you to resources that may provide funding, but they do not fund devices. Target audience for this group is persons who are visually impaired, especially those who have experienced recent loss, however, all are welcome, including family members and supports. Light refreshments will be served. You can also join the meeting by Conference Call at (518) 263-8851.

This is a free, in person meeting. Burdened by a stressful relationship? Unhealthy relationships can trigger feelings of anger, despair or self-doubt. They can create dwindling spirals of fights and seeking to make-up, or trying to “pin the blame” on someone or something. If you don’t find the RIGHT reasons, or select the correct sources of the problem, the problem can just get worse and worse. Whether in love or personal ties, with friends or at work, our life really IS affected by the quality of our relationships. Good ones can promote pleasure and survival while less optimum ones can lead to annoyance, anger, self-doubt, stress, or even affect our health and ability to survive well. Whether you are suffering from a divorce, or a painful break-up, don’t know who to trust (or who to CHOOSE) as a partner, friend, boss or employee - the anxiety of relationship troubles can really make a mess of things. Maybe you’ve suffered a betrayal, or are dealing with hostility or criticalness or invalidation. Dwindling relationships can involve destructive behavior, where we hurt those we love, or start succumbing to self-destructive thoughts, attitudes or behaviors that spiral out of control and affect much more than our immediate relationship. Past losses in love or life can affect how we act or react to new people and situations and hold us back from even starting to create new, possibly great relationships! How can one get back onto a saner course of action? Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life: human relationships! Break free from self imposed limitations Here we will discuss: • How to “erase” the trauma of past hurts and betrayals so that one isn’t always repeating past mistakes. • Why and how do the negative emotions of others affect you? • Why is my partner withdrawing and what can I do about it? • Why do we sometimes feel compelled to hurt the ones we love? • Fights & arguments - what's really behind them? • What underlies “corrosive criticism” or the need to invalidate self or others? • How one can stably change one’s outlook on life so they can affect positive change? • Where do compulsive destructive behaviors come from and what can be done about them? • How to form closer bonds & keep growing the relationships with the people you care about? • How to enhance one’s own ability to survive and create positive healthy relationships whether in love, family & friendships or in work, business or one’s career? Relationships can be hard and life itself IS challenging. Why not arm yourself with the knowledge and breakthroughs that have been made about the mind, mental reactions & interpersonal relationships, so that one has better awareness and control over themselves and life in general. Learn where painful experiences are “stored” and how they can unknowingly affect us. You will also find out how one can “erase” those past painful experiences so that one is free to move forward without being tripped up by the past. Learn too, about what can lead some people to become “toxic” personalities and how to identify those traits in others so you won’t be tripped up trusting the wrong person. Our free Meet-ups occur in a safe environment where one can learn, without fear of judgment or criticism, and without the recommendation of harmful mental techniques or therapies, just how YOU can get yourself onto a happier & more successful path: in love & in life. We look forward to having you join us! This class is sponsored by the Dianetics & Scientology Life Improvement Center of Central Ohio.

Join us as we get the New Year started with one of the best films of the year: THE SECRET AGENT! This political thriller from Brazil is set in 1977 where a man flees from a mysterious past and returns to his hometown but soon finds the city is far from being the refuge he seeks. Here’s a description, trailer and plan for this event: DESCRIPTION: In 1977, a former professor flees from a mysterious past and returns to his hometown of Recife in search of peace. He soon realizes that the city is far from being the refuge he seeks. The film stars Wagner Moura, Carlos Francisco, Tânia Maria, Robério Diógenes, Maria Fernanda Cândido, Gabriel Leone and Udo Kier in his final film role. TRAILER: https://www.youtube.com/watch?v=9UfrzDKrhEc BUZZ & ACCLAIM: The Secret Agent was the most awarded film at the 2025 Cannes Film Festival where it won Best Actor for Wagner Moura, Best Director for Mendonça Filho, the Art House Cinema Award and the FIPRESCI Prize. At this year’s Golden Globes, it became Brazil’s first film ever to be nominated for Best Film (Drama)! It also received a Golden Globe nomination for Best Foreign Film, a Best Actor nomination for Wagner Moura and was selected as Brazil’s entry for Best International Film at this year’s Academy Awards. The film is receiving an incredible 99% positive rating on Rotten Tomatoes where critics say, its “compelling script, impeccable acting, and striking 1970s aesthetic” make it “impossible to look away!” Critics say The Secret Agent is “one of the few standout movies of the year” and the Chicago Tribune calls it a “masterpiece of a film” and “the best film of the year!” PARKING: Close, convenient parking is available in the nearby garage (located between 9th and 11th, just off High St). Bring your ticket with you and have it validated at the theater and for $2, you’re covered for the night! PLAN: Details for this event have been confirmed! A bit of a good news/bad news situation with the showtime. I was afraid it may disappear before we got a chance to see it! Its down to one showing at one theater. Showtime is a little early but if you can make it work, I think it’ll be worth our while! Please purchase your ticket for the 4:45pm showing at we’ll meet in the upstairs lobby between 4:25 and 4:35pm! At this time, tickets available via the Gateway website only! Advance purchase is advised! Once you have yours please list your seat number in the Comments below. Happy New Year and look forward to seeing you there, Dan

Early-bird coffee and conversation at [Java Central Café and Roaster](https://javacentral.coffee/)**!**

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

Forgiveness is one of the most powerful acts of healing we can offer ourselves. Join us every Wednesday for **“Mastering the Art of Forgiving,”** a gentle and transformative class that explores how to release resentment, heal emotional wounds, and open your heart to peace. Through guided reflection, discussion, and practical tools, you’ll learn how forgiveness can free you from the past and create more harmony in your relationships — and in your spirit. **Let go. Heal deeply. Live freely.** **All are welcome.** No prior experience or preparation needed — just bring an open heart and the willingness to grow. **This is a weekly live event.** Simply log in to join — no RSVP required. 💗 **[Join Forgiveness Class on Zoom](https://us02web.zoom.us/j/82360245386?pwd=TVZ4SS9SNFVoM2ZsTmRKZlVTVDNyZz09)** \| ID **823 6024 5386** Passcode **995999**

**New Dojo Location!** **Draft Day Columbus** 1130 Dublin Road Columbus, OH 43215 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

We will have our certified mediums available and you can receive 3 10-minute readings for $20. To keep you safe, we will be following all CDC and Health Dept. guidelines at our psychic fair today. Sitters and readers required to wear a mask. We will maintain a minimum of 6 foot physical distance during readings. Please, if you can, bring your own portable chair to use during your readings. Please note that we are at our wonderful new home at Unity of Columbus, 4211 Maize Road, Columbus, OH

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 **Abstract** GitHub Copilot is rapidly changing how developers write, understand, and maintain code. Powered by generative AI and deeply integrated into modern development environments, Copilot acts as an intelligent coding assistant, helping developers move faster while maintaining quality and focus. In this session, we’ll explore what GitHub Copilot is, how it works, and where it fits into a real-world developer workflow. We’ll break down what Copilot can (and cannot) do, where it can be used, and how licensing differs for individuals and organizations. Most importantly, this talk goes beyond theory with a live, hands-on demo showcasing Copilot inside the IDE and on GitHub, demonstrating how it can assist with code generation, refactoring, learning new APIs, and accelerating day-to-day development tasks. Designed for developers, technical leads, and engineering managers, this session provides a practical introduction to AI-assisted development, highlights best practices for getting value from Copilot, and closes with guidance on how to continue learning and evolving alongside this rapidly advancing tool. Attendees will leave with a clear understanding of how GitHub Copilot can enhance productivity, improve developer experience, and fit into modern software teams today, not someday. **YouTube Link** TBA

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. I've been hardware hacking a See N Say to make it say whatever I want - while the project is in progress still, it should be working by this meetup! I'll bring it for demo. [See N Say Project](https://github.com/cdeever/esp32-see-n-say) While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

* Who Can Attend * The Central Ohio .Net Developers Group meetings are free and open to the public! All developers; professional, student, and hobbiest are welcome and encouraged to attend. * When we meet * The Central Ohio .Net Developers Group meets on the 4th Thursday of every month. * Where we meet * Please check our Meetup group link below for location details! * Join our Meetup Group * https://www.meetup.com/Central-Ohio-NET-Developers-Group-CONDG/

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: **Use AI to convert an old game into an iOS App** **John Endres** How I decided to learn AI tools in Xcode (Claude and ChatGPT) John is a long time iOS Developer. What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**This is a paid program.** **Click <<[here](https://online.innerengineering.com/en/program-details/bhuta-shuddhi-cityprogram-staybridge-suites-columbus-university-area-ohio-us-jan-16-2026)\>\> to register\.** ### **Bhuta Shuddhi means “purification of the five elements” (i.e. earth, water, fire, air and space) which gets to the root of imbalances in the body that lead to disease. This simple practice which you can do daily reorganizes your system on the elemental level.** **Benefits:** * **Keeps the system in harmony and balance** * **Prepares the system to handle powerful states of energy** * **Creates the basis to gain complete mastery over the human system** **For ages 14 and above, no prior knowledge of yoga is required.** **This program is conducted by a Hatha Yoga teacher trained by Sadhguru.**

**Click <<[here](https://online.innerengineering.com/en/program-details/yogasanas-cityprogram-staybridge-suites-columbus-university-area-ohio-us-jan-17-2026)\>\> to register\.** **[https://www.youtube.com/watch?v=4ZdcGKUQufU](https://www.youtube.com/watch?v=4ZdcGKUQufU)** **Yogasanas** **Yogasanas are offered as a set of powerful postures to transform the body and the mind into a possibility for ultimate well-being. They are not taught merely for physical fitness and strength, but are a way of aligning the inner system to the celestial geometry, becoming in sync with the existence, thereby naturally achieving a state of health, joy and bliss.** **"Your physical health, your psychological wellbeing, and your spiritual possibility depend on how well aligned you are with existence. Essentially, hatha yoga is towards establishing this alignment." - Sadhguru** **Benefits of practicing Yogasanas regularly:** * **Stabilization of the body, mind, and energy system** * **Slows down the aging process** * **Relief of chronic health conditions** **Agility Level: Intermediate** **For ages 14+** **Open to everyone, no previous experience of yoga required**