Quantum Mechanics

Let's capture the changing light together! We'll meet at Mariaplaats as the sun starts to set and wander through the city as day turns to evening. Bring whatever you like to shoot with - phone, camera, pinhole contraption - it's about noticing the light, not the gear. Afterwards we'll find a spot nearby for drinks. No experience needed - just curiosity and comfortable shoes. Practical stuff: *Date: Thursday 26 March 2025 - Time: 18:00 *Location: Drinking fountain at Mariaplaats - Duration: \~1.5 hours walking, then drinks *Cost: Free (just your own drinks afterwards) - Bring: Something to take photos with, warm layers In case of rain we'll postpone to another date.

**ArnhemJUG** We are excited to announce that we are welcomed by Avisi for the March meetup. **Agenda** * 17:00 CET walk-in * 17:30 – 18:30 Food and drinks * 18:30 – 19:30 talk: **Koog your own AI! Delicious recipes** by **Simon Vergauwen** * 19:30 – 19:45 break * 19:45 – 20:45 talk: **Domain-Driven Design** by **Dirk Groot** * 20:45 – 21:30 drinks **Koog your own AI! Delicious recipes** Koog is an open-source Kotlin framework for building robust, and production-ready AI agents. Developed, and battle-tested in their own products by JetBrains! In this session we’ll build an agent, and explore various techniques to tackle different kinds of problems, and complexity. How we can use model-context protocol (MCP) to give our agent access to external tools, and how to build custom tools to integrate with your own systems. How to define flexible graph workflows to design complex agent behaviors. If you're not cooking your own AI Agents yet, you should! Join me and I’ll give you a taste of Koog. **About** **Simon Vergauwen** **Developer Advocate at JetBrains & OSS (arrow-kt) Maintainer** **Software engineer from Antwerp, Belgium.** Interested in everything functional, and Kotlin. Loves OSS, cooking, snowboarding and Fallou **Domain-Driven Design** What name should I give this entity? How should I deal with ambiguous terminology? Where should business rules be implemented? Is this validation part of the domain logic, or does it belong to the application layer? Which entities should be within the scope of this database transaction? In this talk we explore how the **Domain-Driven Design (DDD)** methodology helps answer questions like these. We will cover the key DDD concepts, including **Ubiquitous Language**, **Bounded Context**, **Aggregates**, **Entities**, and **Value Objects**, and discuss how they fit within a software architecture. The session is built around a practical example, so you will not only learn the theory behind DDD, but also see how these concepts can be applied in real-world software development. **About Dirk Groot** I'm a software engineer with more than 25 years of experience. Since my early teens, sofware engineering has been my greatest passion.

Hi✋ At[ Data Tribes ](https://www.datatribes.nl/)we organise Meetups because we truly care about sharing knowledge both inside and outside the organisation. We believe that it is beneficial to us and to the market as a whole to connect, create, learn and grow together! **The agenda** // Doors open 6.00pm // Drinks and Pizza’s 6.30pm // Start presentations 7.00pm // **Meni Shmueli - Distributed Computing Unpacked** // Start networking 9.00pm // End Meetup 9.30pm Greetings, Data Tribes Inc.

Lets meet up at Conclusion Lowcode Company! **Client State & Garbage Collection** Curious how the Mendix Client really works under the hood? Join our meetup and uncover the secrets behind Client State & Garbage Collection and how they impact memory, performance and scalability of your applications. * **How Client State works:** Understand how objects are stored in the browser, how state grows, and why it matters for app performance. * **Garbage Collection in Mendix:** Discover how unused objects are cleaned up, what stays in memory, and what can cause unexpected memory bloat. * **Performance pitfalls & best practices:** Learn how to avoid hidden state issues, optimize your microflows, and keep your app fast and efficient. **Grid Inteligence** We all know about grid congestion and challenges society faces as a result of it. Smart technologies such as demand-side management are key to combat grid congestion. The National Energy Dashboard (NED) which is an joint initiative from Gasunie en TenneT provides free data on energy consumption, production, transport and storage. I present the Footprint Reductor as a lightweight plug-and-play Mendix module to bridge the gap between the data from the NED and Mendix applications. • **Lightweight:** Find out how we kept flexibility while we were eliminating the need for technical know-how. • **Performance:** Learn how we took the client state into account to enable optimal performance. 📅 **Program** * 18:00 - 19:00: Walk-in + Drinks & Food * 19:00 - 19:30: Client State & Garbage Collection * 19:30 - 20:00: Grid Intelligence * 20:00 - 20:30: Networking and Drinks **Speakers** 🎤 Tim Speksnijder Mendix developer with a millisecond mindset 🎤 Frank Dennissen Mendix developer with a sustainability spark **Directions & Parking** This time we host the meetup NOT in our Utrecht office, but in our Nieuwegein office. Set your navigation to Edisonbaan 15, 3439 MN Nieuwegein (free parking). **RSVP** Please register and make your RSVP below. **About Mendix Meetups** This is an in-person event hosted at the Conclusion office in Nieuwegein. Mendix Meetups are all about community, learning, and real-world experience — no sales pitches, no recruiting, just valuable insights and knowledge sharing. *PS. Please understand the impact of no-shows on our resources, so please update your RSVP if a change in plans happens!*

**Locatie:** Huis van Actief Burgerschap, Neude 11, 3512 AE Utrecht **Datum:** 26 maart 2026 **Tijd:** 19:15 inloop, start 19:30 en eindigt om 21:30 Tijdens dit event ga je aan de slag met reflectie, gesprekken en oefeningen die helpen om inzicht te krijgen in jezelf. In een open en ontspannen sfeer ontdek je nieuwe perspectieven, luister je naar anderen en leer je bewuster omgaan met verlangen, tevredenheid en verandering. Wat doet het met ons, als alles inwisselbaar is? Het maakt ons vrijer en verrijkt ons met nieuwe ervaringen, maar maakt ook angstiger en eenzamer. Ons werk bestaat steeds vaker uit korte projecten, romantische liefdes verbanden worden net zo makkelijk aangegaan als beëindigd en de wereld vereist dat we flexibel zijn. Tijdens dit event ga je aan de slag met reflectie, gesprekken en oefeningen die helpen om inzicht te krijgen in jezelf. In een open en ontspannen sfeer ontdek je nieuwe perspectieven, luister je naar anderen en leer je bewuster omgaan met verlangen, tevredenheid en verandering. **Wat kan je verwachten?** Een avond in een ontspannen sfeer voor alle leeftijden. Geniet van een drankje van ons en ontmoet nieuwe mensen. Je kunt alleen komen of samen met een vriend(in). Liever een buddy? Geef het aan bij je aanmelding. Tijdens de avond maak je makkelijk contact met anderen die ook op zoek zijn naar betekenis. Meld je aan en kom bloeien! **Aanmelden kan via de onderstaande link:** https://www.dekwekerij.org/bloeiklas/utrecht-iets-nieuws/

¡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!

Hi all, This will be our seventh meetup and we’re back at our local watering hole, Mick O’Connells. We have the right side reserved just for us. When you walk in, turn right at the bar and head past the dart boards. It’s the side room. Bring your stories, your energy and your ambition. This is a space to talk business, meet sharp people, or simply decompress with others who understand the game. All we ask is that you are an entrepreneur, freelancer, or planning to become one within the next 3 months. If not, the countdown starts now 😉 We’ve introduced a new social format to keep things more interactive while protecting the good vibe. Please do your best to arrive on time so we can kick things off together properly. Follow the grey and brown gnome in the photo below to find us. He’s our mascot. Any questions, just ask.

* We **start at 12:15** at P&R Station Lunteren Spoorstraat 9, 6741 DE Lunteren https://maps.app.goo.gl/S1CFFxbpqNsP2VkR9 * Length: \~13 km (4 - 5 hr hiking) * What to bring: lunch, water, snack. * For whom: As always, sporty folks that like to combine social event with being active in nature. **Getting there by Train:** * To station: Lunteren https://maps.app.goo.gl/w5rTEBuumoxCgQ6U8 **Getting there by Car:** * Free car parking: at the P&R and in the streets Spoorstraat 9, 6741 DE Lunteren https://maps.app.goo.gl/tEt2gSJnAueVMNw86 **Note:** * Please **pay a small fee (3 euro)** to help us cover the (increased) yearly Meetup contribution of 240 euro. We'll ask you to pay before the start of the hike (can be on the day itself). No refunds, but in the unlikely event that hike would be cancelled and you already paid, you don't need to pay for your next hike. Thank you so much! Use the **safe link** here: https://betaalverzoek.rabobank.nl/betaalverzoek/?id=cqlYWv_MTpSjp2VkROXWhA * Keep in mind that the hike can be canceled when the weather is very bad (**always check the event before you go**). * If you RSVP 'yes' we expect you to show-up. Please do not cancel less than 24 hours before the hike. **No-shows** will lead to your removal from the group. Thanks for the understanding. * By signing up for this event, you agree to release the organizers from any responsibility and liability in all claims. As the participation is strictly voluntary and you freely choose to join, it is the responsibility of individuals participating to ensure that they are fit enough and have adequate coverage to protect themselves.

Join in for a morning of crafting & chatting over a drink. Just bring your own project and payment for drinks. Meet fellow crafting enthusiasts, whether it's knitting, crocheting, stitching, origami, or something more unique! We talk about our projects, exchange tipps, but also just get to know each other and enjoy a relaxed Sunday morning in good company. All ages, levels and crafts welcome! And don't be shy, we have newcomers most weeks! **We have limited space at the café, so if you've RSVPd and can't make it, please cancel as early as possible so another person can join!** We now also have a WhatsApp group, where we want to organise get-togethers and other events. Ask one of the organisers at the next Meetup you join for more information and access.

**DDSCC Meetup 7** 📅 **Datum:** Vrijdag 27 Maart 2026 🕐 **Tijd:** 12:30 – 17:00 📍 **Locatie:** Rubicon Cloud Advisor, Leusderend 36, 3832 RC, Leusden **Wat kun je verwachten?** **Agenda** * 12:30 – Inloop met koffie en lunch * 13:30 – Opening door DDSCC * 13:45 – Introductie door Rubicon Cloud Advisor * 14:00 – Jasper Oosterveld: With Great Power Comes Great Labeling: Sensitivity Labels in de Praktijk * 14:45 – Pauze * 15:15 – *Jeroen Bijdevier:* Je omgeving op orde voor veilig en optimaal Copilot gebruik * 16:00 – Ronde tafel gesprekken * 16:30 – Borrel & netwerken (tot 17:00 uur) **Session description:** **Jasper Oosterveld - With Great Power Comes Great Labeling: Sensitivity Labels in de Praktijk** Veel organisaties hebben inmiddels sensitivity labels geïmplementeerd als basis voor data security in Microsoft 365. Maar zodra je voorbij de basis komt, ontstaan er nieuwe vragen. Hoe ontwerp je een werkbaar labelmodel? Hoe voorkom je dat gebruikers verdwalen in te veel labels? Wat betekent labeling voor Teams, SharePoint, Data Lifecycle Management en Microsoft 365 Copilot? En waarom gedraagt het platform zich soms nét anders dan je verwacht? Tijdens deze interactieve sessie deel ik mijn praktijkervaringen met sensitivity labels: keuzes die goed uitpakten, dingen die ik achteraf anders zou doen en de frustraties die je alleen tegenkomt wanneer je labels écht gaat gebruiken in productie. Dit is nadrukkelijk geen theoretische sessie. Neem je eigen ervaringen, uitdagingen en meningen mee, zodat we samen praktijklessen kunnen uitwisselen en ontdekken hoe we sensitivity labels effectiever kunnen inzetten. **Jeroen Bijdevier - Je omgeving op orde voor veilig en optimaal Copilot gebruik** Copilot ziet het verschil tussen achterhaalde en recente informatie niet. Die zal je dus een beetje moeten helpen. Rechten zijn vaak niet (in detail) op orde. Manueel deze zaken vinden is lastig en tijdrovend. Natuurlijk wil je rapportages hebben van het gebruik. Ergo dataveiligheid op orde en inzicht in het gebruik met Purview.

Give your still good laptop a second life instead of ditching it because Windows 11 says it is no good... Or you heard Linux is cool. If you have a backup of your data, that is great, else indicate that you do not, so we can help you. Do so in an extra message or to m10@m10tech.nl, else I don't receive your information. Geef je laptop die het nog prima doet een tweede kans in plaats van hem af te schrijven omdat Window 11 dat zegt... Of omdat je hoorde dat Linux gaaf is. Als je al een backup van je data hebt gemaakt is dat perfect. Of verwacht je dat wij dat doen? In dat geval graag aangeven hoe vol je harde schijf nu is... Doe dat in een extra bericht of aan m10@m10tech.nl, want de info komt anders niet door.

🏔️ Everest Update for the Veluwe Power Hikers We were preparing for a classic VPH high altitude expedition on top of the world. Unfortunately there is some disappointing news. Starting in 2026, Nepal is introducing strict new regulations for climbing Mount Everest. Climbers will now need to have previously summited a 7,000 meter peak in Nepal and must also submit mandatory health certificates. Because we cannot realistically summit a 7,000 meter peak and then climb Everest on the same day during our hike, I am unfortunately obliged to change the program. There is also another small complication. 1 April falls on a Wednesday, which makes organizing the expedition a bit difficult. After a poll in the WhatsApp group, we decided to move the date to **28 March** and climb the highest point of the Veluwe, **Signaal Imbosch (110 m)**. Even if it’s not Everest, don’t underestimate this hike: we will cover **22 km with about 350 metres of elevation gain** at a brisk pace. At this altitude, however, oxygen bottles are no longer recommended. Please update your RSVP if you can no longer attend due to the change. ⛰️🥾 **When and Where to Meet?** 10:10 sharp at Rheden Trainstation. ⏰ Please arrive on time, as we won’t be able to wait for latecomers. 🥾✨ https://maps.app.goo.gl/VaEtswyBps5awMoL7 **Where and When Shall We Rest?** We’ll take 2 breaks: * Lunch break in nature at Signaal Imbosch (110 m) with group photo on summit; 20 min * Snack and drink at Basecamp (80 m) where you can buy drinks and snacks; 30 min **Notifications:** * Technical equipment: avalanche transceiver (beacon), avalanche probe, and avalanche shovel (if you have them) * A compact lunch and water to share at the summit * The hike will only be canceled in case of severe avalanche risk (code 5). * If you plan to bring a companion, please ensure that they are also registered for the hike. * To be the first to get updates on new hikes, join our WhatsApp group! Feel free to ask for the QR code during the hike to easily join. * T-shirts are now available for €25, made from Fairwear-certified organic cotton with eco-friendly inks—sustainable, odor-resistant, and perfect for your hiking adventures (limited stock, available during the hike)! Let me know your size and I will bring one for you!

Welcome to the event page of the Walk & Talk in Arnhem Sonsbeekpark, taking place on Sunday March 29th, 2026. This event is a informal walk where we will connect again and perhaps meet some new people. It will be the first day of Daylight Saving Time and, fortuitously, *Zeldzaam Mooi Markt* is taking place in Sonsbeek. We plan to make a stopover here. Our event is free and open for everyone to join, including Dutch and internationals. **Practical information** \- The meetup of this walk is at **13:00 at Arnhem station, near Burger King**. We’ll start walking after 10 minutes. \- A walk like this is at a casual pace and usually takes about 2 hours\, including breaks\. We are focusing on an area\, not a specific route\. This gives us some room for suggestions of participants like when to have a few minute break\. \- We will take a coffee break at a café in between or afterwards if there's enough interest\. \- B\-YOU: Bring your own umbrella\, in case of rain\. If the weather is really unacceptable we will go to a café instead\, or cancel the entire event\. \- You can leave at any time you like\. **Sign up via Meetup OR E-mail** Please sign up for this event by RSVP on Meetup OR send an e-mail to **[urbanarnhem@gmail.com](urbanarnhem@gmail.com)** . Joining the event is free, but donations will be very appreciated. We are making costs to keep this group active on Meetup, so any (small) donation will go directly to keeping our page online. We hope to see you on this walk! \*\*\* **Disclaimers** \*SOCIAL MEDIA We might upload some of our photos and videos on social media. If you don't want to be recognized, please let us know. Our Instagram is: [@urbanrural.arnhem](www.instagram.com/urbanrural.arnhem) \*RESPECT & SAFETY Everyone partaking in the event must be treated with respect, and safety is being highly prioritized. Anyone violating this can and will be required to leave. Please contact the organizer if you feel something is wrong.

Een wandeling voor vaders die het zichzelf gunnen om even te willen uitwaaien én de diepte in willen. We lopen samen door de natuur, ontmoeten elkaar en delen wat er echt speelt — als vader, als man, in je werk of gewoon in je hoofd. Niets moet. Er is geen afleiding, alles draait om verbinden en inspireren. Onderweg doen we een aantal oefeningen, luisteren we naar elkaar en stellen we de vragen die er toe doen. Een ideaal moment om even tot jezelf te komen — die ontspanning neem je sowieso mee naar huis. **Past dit bij jou?** Je hoeft geen antwoorden te hebben. Alleen de bereidheid om eerlijk te zijn — naar jezelf en naar de andere vaders om je heen. **Wat kun je verwachten?** * Een kleine groep van max. 8 vaders * Een mooie route op de Veluwe * Goede gesprekken en oefeningen onderweg * Ruimte voor jouw verhaal * Koffie/thee en een snack na afloop Kortom: een wandeling waarmee je investeert in jezelf en je vaderschap. duur: 10:00-12:00 uur / investering: €20 locatie: rondom Arnhem op de Veluwe

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow

MCKS PRANIC HEALING® Level I In PRANIC HEALING® Level 1, you learn the basics of working with your energy aura, including learning to "scan," or feel the energy, to "sweep," or clean away congested energy, and to "energize," or supplement areas in your aura that have a pranic deficiency. PRANIC HEALING® has been taught to doctors, nurses, massage therapists, acupuncturists, chiropractors, shiatsu practitioners, and many others in the healing field. It has allowed them to heal confidently and consistently in the shortest learning time possible. These professionals find PRANIC HEALING® very effective and easy to apply. Other topics covered in PRANIC HEALING® Level 1: Energetic anatomy: You will learn to work with the network of chakras, meridians and auras to accelerate the healing processes of your body. Preventive healing: You will learn to remove the negative energetic patterns of a disease to prevent it from fully manifesting as a physical ailment. Self-Pranic healing: You will learn to apply these healing techniques to accelerate your own healing. Step-by-step techniques for ailments related to your: respiratory system, e.g., asthma,; circulatory system, e.g., heart ailments; gastrointestinal system, e.g., irritable bowel syndrome; musculoskeletal system, e.g., arthritis and back pain; reproductive system, e.g., menstrual problems. You'll also learn how to address common problems as migraines and sinusitis. Additionally, you'll learn to apply distant healing to loved ones who are not present in the room with you. All PRANIC HEALING® courses are "experiential," which means that you learn by actually performing the techniques and exercises in class - on yourself and those around you. During class, all the principles will be explained thoroughly and you will practice the techniques exhaustively so you will be confident in your ability to produce positive results when you finish the course. This is Day 2 of 2 Attendance at day one is required to attend day 2. The Course text book is Choa Kok Sui, "Miracles through Pranic Healing" Please bring this with you to class. PRANIC HEALING® Level 1 is a prerequisite to all other GMCKS courses. For those interested to review the class...Review fee is only $75!! LOOK AT THIS!! Review for FREE when you bring a new student to class with you.

This meeting will be a discussion of the book "the Science of Aliens" by Mark Brake

Start your week the right way with Manic Mondays. Giving you an enjoyable Bachata lesson with a push of cool moves. The second hour has Beginner/Intermediate Salsa on 1. You must understand basic Salsa skills to participate. 730pm-830pm Bachata Cool Moves 830pm-930pm Salsa On 1 (Beginner/Intermediate) $15 for One Class $20 for Both Free Parking & Plenty of Dance Space.

So this month's prompt is more general. I think we can all agree that we are living in "unique" times that require coping skills. I think that one role and/or purpose of philosophy is to help us deal with our daily lives and our "unique" times. So, let's share our feelings and thoughts about which philosopher/philosophy we turn to in order to deal with our crazy events. Who/what helps you stay focused in your daily life and helps you sleep at night. I find that Stoicism with a little philosophical pessimism mixed in goes a long way in helping me deal with what I see as very destructive, fearful and mean spirited public policies at both the state and federal levels. Hope to see you on March 28th!

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