Medicare and Social Security

Donderdag 21 mei 2026 is het weer tijd voor onze Techday: hét vaste moment waarop we kennis delen, elkaar inspireren en nieuwe ideeën direct in de praktijk brengen. Deze editie pakken we het aan als een conferentie in het klein. Drie sprekers, drie verhalen, één middag – drie verhalen voor de prijs van één. Wat kun je verwachten? **Dirk neemt een kijkje onder de motorkap van AI** AI voelt voor veel mensen als magie. In deze talk probeer ik de magie weg te nemen door een kijkje te nemen onder de motorkap. Een essentieel bouwblok van moderne AI is een neuraal netwerk. Als je begrijpt hoe een neuraal netwerk werkt, is het een stuk makkelijker om te begrijpen hoe en waarom een LLM werkt. De beste manier om iets te begrijpen is door het te bouwen, vanaf scratch. Dus dat gaan we in deze talk doen. Door dat te doen leren we over artificial neurons, activation functions, backpropagation en meer. **George vertelt hoe AI Cyberaanvallen verandert** George Schizas (extern), voormalig IT Manager, nu werkzaam als CISO, vertelt over zijn ervaringen in de Cloud Cyber Security en hoe hackers met behulp van AI nieuwe aanvalsmethoden kunnen gebruiken om kwetsbaarheden op te sporen en te exploiteren. Hij geeft voorbeelden van manieren om in Kubernetes omgevingen in te breken en noemt manieren om dit tegen te gaan. **Roland duikt in de wereld van de fraude fabriek** Als ontwikkelaar kom je dagelijks in contact met technologie en de laatste jaren natuurlijk ook vaak met AI. JIJ snapt heel goed wat de voordelen en de gevaren zijn, maar hoe leg je complexe onderwerpen als AI gegenereerde afbeeldingen, Voice Phishing en Hallucinaties uit aan je ouders, de buurvrouw, of je kinderen? Ik neem jullie mee in een realistische situatie waarin Anna en haar familie opgelicht wordt met behulp van verschillende technieken en hoe dit oplichters-landschap met behulp van AI verandert. **Wanneer:** Donderdag 21 mei 2026 **Wat:** Techday – conferentie-editie “AI kansen en valkuilen” **Voor wie:** Iedereen (!) die nieuwsgierig is en wil leren **Agenda** 14:45 - 15:00 - Inloop 15:00 - 16:00 - Neurale netwerken 16:15 - 17:15 - AI risico’s en kansen 17:15 - 18:00 - Eten 18:00 - 18:45 - Fraude fabriek We zien je graag op de Techday!

Your monthly international comedy event in Nijmegen! Top European & UK headliners doing 1 night only in Nijmegen! Fancy some Thursday night laughs? Then come on over to Tierney’s Irish Bar & Restaurant for some top headline acts from the UK and European comedy circuits! It's our season finale and we are bringing you Adam Bloom (UK); a headliner who is one of Ricky Gervais' favourite comedian, one which actor Sir Ian McKellen could not wait to see live! His TV credits include: Mock The Week (BBC2), Never Mind The Buzzcocks (BBC2) & Russell Howard's Good News (BBC3). Get your ticket via Evenbrite/ Tix4All or link bleo: https://fienta.com/nl/international-stand-up-comedy-attierney-s-irish-bar-nijmegen Seats will be based on RSVPs, so let me (Sharon) know at the door if you want to be introduced to other meetup up members in attendance. Adam Bloom is undoubtedly one of Britain’s most exciting and original stand-up comedians. He has performed seven sell-out solo runs at The Edinburgh Festival, ranging from 1996 to 2007 and has also performed a twenty-nine date, sell-out tour of The UK. In 2004 Adam was part of Just For Laughs Comedy Tour, where he performed to over 42,000 people in 17 cities across Canada. He has also written & performed three series of The Problem with Adam Bloom for BBC Radio 4 (2003-2005). He has also provided additional material for over 130 other people, making him one of the world’s most prolific ghostwriters. Some of the people Adam has written for include an Oscar & BAFTA Nominee and four comedians who've given Royal Variety Performances. Plus support acts! Come early to get your seat and have have some delicious pub grub before the show. An hilarious monthly show featuring some top names, a great night out with friends, a date, you work crew or just come alone and meet other comedy fans. An hilarious monthly show featuring some top names, a great night out with friends, a date, you work crew or just come alone and meet other comedy fans.

In a world where new frameworks, tools, and trends seem to appear every week, it’s easy to forget where true technical strength and innovation come from: the fundamentals. At Back to the Future of Code, we invite developers to **explore the foundational building blocks behind modern software**. Three speakers will each offer a different perspective on these fundamentals and highlight why they’re still at the heart of great engineering. Talks: 🎤 **Frontend Framework Dependency: Are we skipping the hard part** → Ramona Domen (Software Engineer and Impact Leader) Ramona shows how modern frontend frameworks still depend on HTML, CSS, and JavaScript. And why mastering these foundations makes you a more deliberate and powerful engineer. 🎤 **Why Great Engineers Don’t Just Write Code** → Sarah Gruneisen (Engineering Leader & Leadership Coach ) Sarah’s talk highlights how many engineers, especially women, have their strategic and technical strengths overlooked in favor of their “people skills”. She reveals how those very skills drive real technical impact and invites us to broaden our definition of engineering excellence. 🎤 **Women in Tech: Bug or Feature?** → Maaike Wachters (Software Engineer) Maaike uncovers the hidden history of female tech pioneers whose groundbreaking ideas laid the foundation for the way we code and innovate today. **Program** * 17:15 – 18:00 Walk in and dinner (vegetarian options) * 18:00 Intro WeCode and KVK * 18:20 Talks and Q&A (in English) * 20:00 – 21:00 Snacks and drinks **Who should attend?** This event is especially designed to spotlight and elevate women’s voices in tech by giving them a place on the stage. Everyone is welcome to join. **How to get there** KVK is located at Sint Jacobsstraat 300, 3511BT Utrecht. (KVK has two buildings on the same street, so look out for number 300) * By car: Paid parking is available at Q-Park La Vie or Paardenveld. * By train: The nearest train station is Utrecht Centraal, about a 10-minute walk. * By bus: Take lines 1, 3, 6, 7 or 27 to bus stop Sint Jacobsstraat. * By bike: There are bike racks available close to the location. You need to bring identification because we're in a goverment building. (ID-card, drivers license, passport). **Change of plans?** Please cancel your RSVP so someone on the waiting list can take your spot. Thank you! **Photography** We will be taking photos during the event to capture the atmosphere and share highlights afterward online. If you’d rather not be photographed, let our team know. **Questions** If you have any questions or need special accommodations, please contact us at wecode@kvk.nl.

**RSVP here via EventBrite [here](https://www.eventbrite.nl/e/you-and-your-brand-a-casual-networking-hour-tickets-1984283125243).** Expand your visibility. Join a casual online time to share about you, your brand and business, and learn more about other business owners, locally and globally. Share upcoming events and workshops, too. After each business owner gets the spotlight to share, we then move into a topic-oriented discussion. This month, the topic is begin chosen by [Isabella Maria Noguera, MSc](https://www.linkedin.com/in/isabellamarianoguera/) over of Be Your Brand Consulting. Every session closes with gratitude and a creative activity, so have a pen and paper, tablet, or something available in case we write/create/draw. **RSVP here via EventBrite [here](https://www.eventbrite.nl/e/you-and-your-brand-a-casual-networking-hour-tickets-1984283125243).** *-* *\*\*\*The only requirements are a minimum age of 18 years old, be a business owner or preparing to launch,* *and **at least three attendees** register to make it a worthwhile hour for everyone.\*\*\**

We’re back! On **May 21st**, PuXu returns to Acato in Utrecht for a meetup dedicated entirely to **Research**. **Speaker 1: Emmanuelle Savarit** Emmanuelle is a UX researcher with 20+ years of experience. She's built and led research teams at Facebook, Just Eat Takeaway, LSEG (Refinitiv), and Thomson Reuters. She ran her own UX research agency for 10 years. She's written two books, hosts the UX Research Club podcast, and now focuses on helping researchers increase their strategic impact, including navigating AI. In short: she knows what it takes to move research from tactical to strategic, and she's coming to Utrecht to talk about it. **Special Offer:** Emmanuelle is the author of *The UX Research Powerhouse*. As a PuXu attendee, you can [pre-order your copy](http://clicks.meetup.com/ls/click?upn=u001.NY3oBFzZ5LJDG7YcnfSAKt-2FPbu0mdbClRwu8GKKRoO80nKlP-2FLm90aUF5CQqytHZ3qPz_74u5-2F-2BkTZmgMdnIu03cC4mmjtImPovdZ1zhiEax5tCGl-2BX4fyxb41gNAMGCWV5p-2F3ZXnrHzXrYb-2FEX1gm6iU0hCqBeZf0X8TDiJ-2FF2Pb5b0AYKY0z73yUDJwsJeyVUq2KtnZTX6IPrsDNa2UkzczY3hKG3S2HRTZ-2F-2F-2B5qIwx3CPXatPQFxQ52SkLNZ5jtWr2BsPEXqg9XUqI4UVveDZFOzr6Jpxsj6HpP5WPTNn9JfRQGsEK6lvy8Funa0EQyQ5-2Fcs-2B47BimpzF-2BEXne3mS-2BZNzrupqrFFi2fX4yIrWqpynPk6sL8GL1wQYphmXVe60iss42yhd4nNcrL3QnxXpmXREmBBaQDTLdBvlEgh-2BlmcKlZdw6YOLqURK9zvY-2FZT5KaZSep0LjLq0ckOBsBXggyUAiy01ioYfPSic9ypG0U9487DG53iY3jWQMuNSrHZokvJpDhdJ90J3JwMV8sFus1jAghL1xl0LlFTEJpqn6t0IDZ1Yply0uZ5X2veN2tA6ExM9KeLmTIDEk7ps7HLzVl7BhlE3HPR0nzpsaeXQjsAOoU-2BnH0eHPtBMoFi4jTJ-2BzcDaUWHmnZT1Xq5B2aktBwrvpQR2rC-2B2F3HcHTn3UrTwP8UrRAlyo7TVk8S34miQEhNN6-2BmmpLC1LwWfU-2FC5CHRq0sQuuBynnS2qztg0oS1no5qCyhZ0QvtvBawQvEzT9) at a **15% discount** and get it signed during the event! **Speaker 2: Sabine Bakker** Sabine is an inclusive user research consultant at the Accessibility Foundation, supporting organizations with making their products and services accessible for users of all (dis)abilities. She knows the challenges that UX teams face in demonstrating their added value from her 10+ years of experience at the tech start-up Blendle, cybersecurity scale-up Zivver, and low-code SaaS Mendix. She now helps teams with gaining a competitive edge through inclusive research and co-creation “from a to y”. Her talk will point you to the importance of user experiences that are not reflected in the training data of LLMs and the “curb cut”-effects to be gained which no synthetic persona will provide. **Speaker 3: Bo Kusters** Service Designer at the Dutch Tax Administration. With millions of users, the team often sees the same generic functional and emotional needs recurring in their user research. To avoid reinventing the wheel every time, they developed an interactive, tarot-style card game. With this clever deck, they make complex user insights tangible, allowing internal teams to apply this data directly in their daily work. Learn during this session how to successfully translate abstract research data into a practical design tool that actually works for your team. **Event details** **When:** May 21 \| 18:30 – 22:00 **Where:** Acato, Oudegracht 231, Utrecht **Cost:** Free \(Includes snacks & drinks sponsored by Visma \| ProActive\) **Capacity:** 50 spots Stay tuned for more updates! Later this week, we’ll also share our *Utrecht Visitor Guide* for those traveling in to make a day of it. See you there!

We’re excited to welcome everyone attending RustWeek 2026 for another collaborative day of coding! This year, we’re partnering up with [Zed](https://zed.dev/) and [Kiesraad](https://www.kiesraad.nl/) (Dutch Electoral Council) to bring you some fun challenges to hack on. Your friendly hackathon organizers are still pulling together details but we'll open the Discord channel soon with more details including hackathon tracks, prizes, and schedule for the day. And you will not be alone! * **From Kiesraad**, the Electoral Council’s Abacus engineers will be on-site to collaborate with you on software for election results and seat allocation, with several good first issues and challenges, and they would love your input and proof-of-concept ideas! * **From Zed**, we will have no less than seven devs from the Zed team ready to pair with you. This will be a great chance to get started with Zed (if you don't use it already), and work on some cool issues and projects together. You do **not** need a ticket to the RustWeek conference to attend the hackathon. The hackathon is free of charge; we will provide coffee, tea, lunch and refreshments. The hackathon will be held at Kinepolis, the same venue as the conference. Schedule Doors open: 9:00 Opening: 9.30 Hacking Begins: 10.00 Demos and wrap up: 6.00 We will keep you supplied with food and drinks during and after the hackathon. Looking for more fun things to do during RustWeek? Take a look at our activities page: https://2026.rustweek.org/events/social-activities/.

¡Compartamos juntos con el grupo de personas más divertido de la ciudad!... ¡en español! No necesitas ser un hablante fluido o nativo.... ¡Solo atrévete a compartir! Te esperamos a las 20hrs.... ¡Entrada gratuita! ¡Nos vemos! ¡Hasta entonces! 😃 Let's share together with the funniest group of people in town!... in Spanish! You don't need to be a fluent or native speaker.... Just dare to share! We wait for you at 20hrs ....Free entry! Nos vemos! Tot dan! 😃 Facebook Group: https://www.facebook.com/groups/habladores/ Meetup Link: https://www.meetup.com/nl-NL/los-habladores/ Instagram page: https://www.instagram.com/los_habladores_utrecht/ Los Habladores!

(english/german below) **Bitcoin Pizza Dag!** Op 22 mei 2010 betaalde programmeur Laszlo Hanyecz 10.000 BTC voor twee pizza's — de eerste gedocumenteerde aankoop met bitcoin. Hij plaatste een bericht op een forum waarin hij BTC aanbood voor pizza; een andere gebruiker ging akkoord, bestelde de pizza's en leverde ze af. Die transactie werd later bekend als "Bitcoin Pizza Day". Laszlo bewees dat Bitcoin als ruilmiddel gebruikt kan worden. **Sluit je bij ons aan voor pizza-avond bij De Pizzabakkers! (vanaf 18:00)** RSVP zo snel mogelijk; we moeten reserveren bij De Pizzabakkers en er is beperkte plek. Zorg dat je je geladen Lightning-wallet meeneemt! *** **English: Bitcoin Pizza Day!** On May 22, 2010, programmer Laszlo Hanyecz paid 10,000 BTC for two pizzas — the first documented purchase using bitcoin. He posted on a forum offering BTC for pizza; another user accepted, ordering pizzas and delivering them. That trade later became famous as "Bitcoin Pizza Day," Laszlo proved that Bitcoin can be used as a medium of exchange. **Join us for pizza diner at De Pizzabakkers! (from 18:00)** Please RSVP as quick as possible as we need to make a reservation at De Pizzabakkers and there is only limited space. Be sure to bring your loaded lighting wallet along with you! *** **Deutsch: Bitcoin Pizza Tag!** Am 22. Mai 2010 zahlte Programmierer Laszlo Hanyecz 10.000 BTC für zwei Pizzen — der erste dokumentierte Kauf mit Bitcoin. Er postete in einem Forum und bot BTC für Pizza an; ein anderer Nutzer akzeptierte, bestellte die Pizzen und lieferte sie aus. Dieser Tausch wurde später als "Bitcoin Pizza Day" bekannt. Laszlo bewies, dass Bitcoin als Tauschmittel verwendet werden kann. **Begleite uns zum Pizza-Abend bei De Pizzabakkers! (ab 18:00)** Bitte antworte so schnell wie möglich; wir müssen bei De Pizzabakkers reservieren und es gibt nur begrenzten Platz. Nimm unbedingt deine geladene Lightning-Wallet mit!

Come along, lovely queer hikers! 🌿✨ This time we’re serving an easy-going queer nature moment with a short loop through **Landgoed Heidestein** near Zeist. Think dreamy forest paths, shimmering fens, a peaceful forest pond, and heather fields - a lot of diversity for such a short walk :) We’re teaming up with **Cocktail (COC’s group for LGBTQIA+ refugees & asylum seekers)** for this event, so besides soaking up nature, we’re creating space for connection, sharing stories, and learning from each other’s journeys and experiences. Expect a vibe that’s part hike, part picknick, part wholesome community exchange. 🌈 Bring your snacks and blankets, as we’ll pause along the way for a relaxed picnic moment together. Because queer joy isn’t just about where we go, but who we walk with. 💖 **Practical info** 📏 **Distance:** 5 or 7 km (loop walk) 📍 **Start:** Bus stop Prinses Margrietlaan, Zeist (5km option) Driebergen-Zeist station (7km option) 🏁 **End:** Back at the starting point 🥾 **Level:** easy - chill pace 🤝 **Meeting point:** outside the train station **Driebergen-Zeist at 13:45** or bus stop **Prinses Margrietlaan (Zeist) at 14:20** ❗You’re welcome to join from another direction. If you come by car you can park at P+R Driebergen-Zeist. Please note: we published this hike with Cocktail simultaneously, which is also why we lowered the participant number from Hiking Queer NL's side. Pack your: 🍱 snacks 🚰 water 🧥 rain coat/umbrella ☀️ sun screen 🏳️‍🌈 anything else you might need ❌ If you signed up and cannot make it in the end, please cancel your RSVP attendance so we know how many people will show up and someone else can take your place instead. 💗 A voluntary donation helps us to keep the Meetup group up and running :) you can either pay via a Tikkie or in cash after we finish the hike. *Hiking Queers Netherlands & Cocktail (COC)*

Join us for a relaxed and friendly matcha tasting meetup. I’ll bring matcha for everyone to try, and you’re welcome to bring your own snacks and drinks, including alcohol if you like. This is a casual event for meeting new people, enjoying Japanese tea culture, and spending a cozy afternoon together. Beginners are very welcome. Free to join.

**Please note: the new name of the bar is GOTO. On Google Maps it's still Bloemerbar.** **Join us for Maytime Drinks for Expats & Locals!** The days are getting longer, the weather is warming up, and it’s the perfect time to meet new people! ☀️ Join us for Maytime Drinks for Expats & Locals and enjoy a laid-back evening of great conversations, cultural exchange, and new friendships. **What to expect** * A lively and inclusive atmosphere to enjoy good company. * Conversations with a diverse mix of locals and internationals. * A laid-back evening of cultural exchange, friendships, and fun. **Who should join** * **Expats** looking to expand their social circle and make new friends. * **Locals** eager to share their culture and connect with an international crowd. * **Anyone** looking for a relaxed, social evening filled with great energy and good vibes. Don't miss out - **RSVP now** and join us for an unforgettable evening! Join the WhatsApp group: brand.page/expatslocalswhatsapp Follow us on Instagram: instagram.com/expats.locals Become a Welcomer: https://www.expatslocals.com/become-a-welcomer

Come and join us for an evening of Buddhist meditation with like-minded people. The doors open at 7:00 PM, and meditation begins promptly at 7:15 PM. The meditation will last between 30 to 40 minutes, followed by tea and biscuits for anyone who would like to stay and chat. On some evenings, there will also be a short Dharma talk to provide some Buddhist context. The meditation space is down at the canal. To get there, you can take the stairs down. The meditation is offered on a donation basis. See our [website](https://utrechtbuddhistcentre.nl/) for more information.

Summer Session, Thursdays, June 4 - July 23, 2026, from 6 to 8:30pm ET **NAMI Family-to-Family** is a free, eight-week program for family members, caregivers, and partners of individuals living with mental illness. NAMI Family-to-Family provides information about anxiety, depressive disorders, schizophrenia, bipolar disorder, and other mental health conditions. Other topics covered include communication, problem solving, treatment, and recovery.

For the last 5 years, Central Ohio Friends and Columbus Social Connection have teamed up for some incredible nights out and some of the biggest social events in Columbus with our biggest combined event bringing out 80+ people. ⚠️ Please only RSVP through ONE group to help keep headcount accurate. Now we’re celebrating where it all started. On Friday, May 22, we’ll be joining Central Ohio Friends 🍻 **Starting at** Brothers Bar & Grill in the Arena District the same place their very first event was held back in 2021. Whether you’ve been to one of our events before or **have been waiting for the right one to come out to,** this is a great one to jump into. Stop scrolling. Start doing stuff. If you find value in these events consider contributing Link can be found in comments!

**Not everyone will come. That is exactly why you should.** **Two for Tuesdays** is for the people who actually want to get out and do something instead of just talking about it. We’re kicking off the night with a one-hour social walk before Duckpin Social. **Expect a laid-back** But an Intentional 1 hour walk (2-3 miles), good people, and a better way to spend your Tuesday than staying home and doing the same thing you always do. **If the weather does not cooperate, we’ll move indoors.** **This is a paid event.** A small contribution helps keeps events sustainable and ensures those **who RSVP actually show up.** Payment **Link Found in comments** or you can pay on Venmo, Paypal, @WiseUnlimitedLLC or Cashapp $WiseUnlimitedLLC. Walk RSVP **$2** Walk / DuckPin Social **$5** Walk / DuckPin Social + 1 game of duckpin **$12** Please be sure **to Put Event and Event Date** in the note when paying RSVP Fee

Hi ladies. We will meet in front of the Nature Center and head to the two Observation decks. We will then hike Hickory Ridge, Ripple Rock, Overlook and Sugarbush trails to get approximately four miles total distance. We will walk approximately a 18 minute mile pace. Please wear appropriate hiking shoes.

Whether you've never done improv before, or you've done it for so long you knew Del Close on a personal level, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup** for some fun and games! The idea behind improv is to create entire scenes from scratch based on a suggestion from the audience. This can be done in game form, like *Whose Line Is It Anyway*, *ComedySportz*, or *Wild 'n Out*; it could also be done to tell stories, like *Middleditch and Schwartz*. Our meetup, which is central Ohio's longest running (and free!) weekly comedy event, brings the games (and occasionally different forms) for you to play in a safe, supportive, and compassionate environment. Not only is it a lot of fun, but you get to work on thinking faster on your feet, plus it's an excellent way to meet new people and make friendships that'll last a lifetime! Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "Yes, And" that you'll have fun!

Hi ladies. Let's hike the edward thomas trail, lake trail , spring creek and a short walk on the multi purpose trail. This is one large loop . Wear your shoe of choice. Meet in the Maple Grove Picnic area. 4.2 miles in length .