Academics

📢 **Upcoming IEEE Blockchain Austria Meetup** 🗓 **Wednesday, May 6th, 2026** 🕕 **18:00–20:00 CET** 📍 **WU Wien** EA.5.044 🎙 **Mark Richardson** (Project Lead, Bancor Protocol) *** 🔍 **Topic: DEX MEV in Closed Form (Sandwich Attacks)** *** We’re pleased to host **Mark Richardson**, Project Lead at **Bancor** Protocol. Mark holds a PhD from the University of Melbourne and transitioned from research science into DeFi in 2021. At Bancor, he has been leading the development of **Carbon DeFi**, a system enabling strategy-specific liquidity provision and more expressive market participation. His work focuses on combining rigorous quantitative methods with practical protocol design, while maintaining decentralization, user safety, and simplicity. This talk provides an analytical and algebraic examination of **Decentralized Exchange (DEX) Maximal Extracted Value (MEV)**, focusing specifically on the sandwich attack mechanism. Mark derives the closed-form solution for computing the optimal, profit-maximizing sandwich attack in the prototypical x\*y=k AMM. The variables, constraints, and the objective function that an MEV searcher must solve when exploiting a pending DEX trade by a naive user are explicitly defined and elaborated. Specifically, the talk provides the details for calculating exact, optimal front-run and back-run trade sizes, illustrated by numeric examples. This rigorous, quantitative work is essential for designing and evaluating future mechanisms aimed at mitigating or redistributing MEV in blockchain economies. The seminar is aimed at researchers and practitioners interested in mechanism design, applied cryptography, market engineering, DeFi, AMMs, and applied cryptoeconomics

**Would you love to visit Paris but don't speak a word of French?** *Join my course and consider your problem solved! - If you speak **ABSOLUTELY NO** French yet, you’ve come to the **RIGHT PLACE**! *This course is perfect for **BEGINNERS** and covers basic A1-level skills. There are 9 independent modules, each lasting 2 hours. You are welcome to attend the full course or just individual sessions. **Dates:** Wednesdays – **April 29, May 06, May 13, June 03, June 10, June 17, June 24, July 01, July 08.** 06.05.: **Ordering in a restaurant, Menu, complaint** *This is **NOT** your average language course –* *it’s a relaxed way to play with words and get you excited for your trip!* *By the end of the course, you won’t be speaking perfect French, but you’ll likely be able to buy a baguette, order a drink, ask for directions, and actually understand the answer...* **The primary language of instruction is German, with English translations provided if necessary.** Since I am teaching this course for the first time, participation is **free of charge**. However, I would appreciate a voluntary donation for the neighborhood center hosting the course. The center is an independent social institution funded by donations. **++++** **Du würdest gerne mal nach Paris fahren, aber sprichst kein Wort Französisch?** - Komm in meinen Kurs und dein Problem ist gelöst! ***Wenn du noch GAR KEIN Französisch kannst, bist du hier GENAU RICHTIG!** *Der Kurs ist super für EINSTEIGER und vermittelt einige Basiskenntnisse auf Niveau A1. **Es gibt 9 voneinander unabhängige Module zu je 2 Stunden.** Wer möchte, kann auch nur einzelne Termine besuchen. **Mittwoch 29.04., 06.05., 13.05., 03.06., 10.06., 17.06., 24.06., 01.07., 08.07.** *** 06.05.:*** *Bestellen im Restaurant, Speisekarte, Reklamation** *Dies ist KEIN normaler Sprachkurs - sondern ein lockeres Spielen mit Worten, das dir erst einmal Appetit macht auf die Reise!* *Du wirst am Ende des Kurses NICHT perfekt Französisch sprechen, aber vermutlich in der Lage sein, ein Baguette zu kaufen oder ein Getränk zu bestellen, nach dem Weg zu fragen und auch die Antwort zu verstehen...* **Kurssprache ist Deutsch, mit Übersetzung auf Englisch, wenn erforderlich.** Ich halte diesen Kurs zum ersten Mal, deshalb ist die** Teilnahme kostenlos.** Doch ich bitte um eine** freiwillige Spende für das Nachbarschaftszentrum, **in dem der Kurs stattfindet. Das Nachbarschaftszentrum ist eine unabhängige soziale Einrichtung, die durch Spenden finanziert wird [Nachbarschaftszentrum 15, Wien](https://www.nachbarschaftszentren.at/angebote/selbsthilfe/1/34244-franz%C3%B6sisch-f%C3%BCr-die-reise-mittwoch,-03-06-2026,)

**Join us** for free writing sessions with tea and treats and find the accountability, focus, and structure you need to achieve your goals. Be it a book, blog, script, essay, dissertation, resume, melody, poem or just plain work stuff, you are invited to write it with us. No one will see what you've written or give you unsolicited advice. Instead of just thinking about writing, come and get some real writing done! **SCHEDULE:** 18:00 - Quick Session intros. 18:15- Timer starts 20:00 - end/chat/ take off/. Vienna Mosaik closes at 20:15 OPTIONAL SOCIALIZING before and after the session. BEING LATE IS OKAY: just show up and join us! **What Should I Bring?** -Whatever you need to be able to write! -Bring earbuds/earplugs if you want to block out music or sounds. **Other Important Details:** TRAVEL / PARKING: 65A to Laxenburger Straße/Troststraße; O tram or 11 stop Arthaberplatz; Reumannplatz U-Bahn; Parking is Kurzparkzone. **INTERNET:** Yes **FOOD/DRINKS:** Light snacks, tea and coffee available. Donations optional **Open seating:** writing room is separate next to the entrance room. **Other info:** Click on the meetup you want to attend and then click on the red button "Teilnehmen" or "Attend". Otherwise, you can attend the writing session anyway. :) *Happy writing and I look forward to seeing you at Vienna Mosaik!* Find Us on Google Maps: [Vienna Mosaik](https://maps.app.goo.gl/1FsrkiXaw6D7y6pK7?g_st=com.google.maps.preview.copy)

Durch das offene Training schaffen wir einen regelmäßigen Ort zum gemeinsamen Improvisieren. Hier können alle mitmachen - es ist keine Vorerfahrung notwendig und wir begeben uns nach einem Kennenlernen und Aufwärmen in die Welt der Impro Szenen und Kurzformate. Es ist sowohl ein Platz zum Ausprobieren für neue ImprospielerInnen als auch zum Üben und Weiterentwickeln für erfahrene ImprospielerInnen. Eintritt: Freie Spende! For Improv in the english language please have a look at the International Improv Community in Vienna ([IICV](https://www.meetup.com/de-DE/International-Improv-Wien/)) on meetup!

Something you won't wanna miss! Latin Grammy nominee and winner of the prestigious Mercedes Sosa and Carlos Gardel awards will delight us with their live music to dance, listen, and enjoy! This Wednesday we welcome Hugo Satorre and Emiliano Faryna at Milonga Itinerante! This time in Galeria Ideal (Itinerante means this is a nomad Milonga, taking place at varied locations in town). We could highlight their extensive path in the tango scene in Buenos Aires and abroad, and how stunning it is to enjoy their mastery live. Or the recognitions they’ve got in Argentina and internationally. What makes them ultra special, though, is the deep and felt connection they create... Between them and the audience, and between dancers. Many in the Vienna tango scene have experienced them in past editions of the Milonga Itinerante and await their visit every year. Are you ready to get transported to Buenos Aires with their music? **See you on May 6th at 20:00!** **This time at Galeria Ideal** **Geibelgasse 14-16, 1150 Wien** TDJ Don Xello **New to Milonga Itinerante?** Its name means it takes place at varied locations in town. Always varied, always fresh, it’s a welcoming space that brings together dancers from different backgrounds, who enjoy tango music, meeting new people and experiencing tango as a living culture. If you’ve missed it, now it’s your chance! **Get your tickets [here](https://www.jessicagerdel.com/duo-faryna-satorre-vienna) or at the door.** €25 Solidaritarif for those in need for it €20

Hey guys and gals, This meetup is to help you discover healthy restaurants in Vienna that support your diet and also to introduce those who are considering the benefits of a plant-based diet to some great and tasty food. So join in, bring your friends and let's have a nice evening dinner with some mouth-watering food, drinks, and of course sweets! This is a free event. You only pay for your own food and drinks! Because of limited space, if you can not attend, please cancel, as someone else may want to take the spot. This Week's Restaurant: Coconut Curry Restaurant Burggasse 64, 1070 Wien +436606666716

PCE - "Philosophic Conversation in English" is a discussion event in English language which focuses on psychology, philosophy, self-consciousness and self-realization. The conversation is based on inclusive discussion rules. We will meet at at a restaurant where we will have a private room exclusively reserved for our event. At the beginning we will choose the two topics to discuss. Everybody can suggest a topic. Afterwards we will vote what topics to discuss. The person who suggests a winning topic will start the discussion by explaining his/her idea. Afterwards everybody gets his/her chance to make a statement. But you can also decide to remain silent and only listen, if you prefer that. We have a time limit for statements, so that everybody has enough time to speak. It is not allowed to interrupt somebody who is speaking. After a statement everybody can ask a question and the speaker will answer. After the first part there will be a 15 minutes break before we start the second part. Everybody is welcome to our event: We are interested in your thoughts and opinions! It is no problem if you arrive late and you can also leave whenever you want. Please don't bring pets to this event because the room is usually very crowded. Please make sure to register for the event to secure your seat! Please check out last event's topics via this link: [http://pce-topic.project-website.org](http://pce-topic.project-website.org/)

**How we play**? Beginners, Intermediate and Advanced Players are welcome. Number of courts depends on the number of players. * 4-5 players: one court * 8-10 players: two courts **Price** * 18-20 € for 2 hours depending on number of players * I use the money to cover the costs for the court, balls and rackets. * You can pay via Revolut, PayPal, instant Bank Transfer or Cash. I prefer transfer over cash. **Equipment** * I provide balls (usually Bullpadel Next) * If you need a racket, you can rent it from me for 2 € (limited number available). You can also rent a racket from the venue for 4 € **Cancellation** * Please cancel at least 10h before the event, to give people on the wait list the chance to jump in. Otherwise a late cancellation fee of 10 € must be paid. * Cancel at least 26h before the event in case the wait list is empty. Otherwise a late cancellation fee will be charged * Late Cancellation fees will be donated to Médecins Sans Frontières (Ärzte ohne Grenzen). * I understand that sometimes unexpected things can come up. However, not showing up and failing to let me know is considered disrespectful and goes against the community spirit. People doing uncommented no-shows have to pay the full event fee. **Important** * Playing competitive is allowed (Smashing balls, hitting balls close to opponent player etc.) * We still value fair play and sportsmanship. * Having fun together is way more important as winning. **Other information** * We are respectful and warm with each other. Our cultural and professional background is diverse * The host or regular players can ask misbehaving players to step out from the court * The venue has changing rooms and showers free of charge (for the lockers you have to bring your own padlock) * If you have questions, you can send me a message any time. I speak german too.

We play on two courts with 8-10 players. open for all Levels **Price** * 17-20 € for 2 hours depending on number of players * I use the money to cover the costs for the court, balls and rackets. * You can pay via Revolut, PayPal, instant Bank Transfer or Cash. I prefer transfer over cash. **Equipment** * I provide balls (usually Bullpadel Next) * If you need a racket, you can rent it from me for 2 € (limited number available). You can also rent a racket from the venue for 4 € **Cancellation** * Please cancel at least 10h before the event, to give people on the wait list the chance to jump in. Otherwise a late cancellation fee of 10 € must be paid. * Cancel at least 26h before the event in case the wait list is empty. Otherwise a late cancellation fee will be charged * Late Cancellation fees will be donated to Médecins Sans Frontières (Ärzte ohne Grenzen). * I understand that sometimes unexpected things can come up. However, not showing up and failing to let me know is considered disrespectful and goes against the community spirit. People doing uncommented no-shows have to pay the full event fee. **Important** * Playing competitive is allowed (Smashing balls, hitting balls close to opponent player etc.) * We still value fair play and sportsmanship. * Having fun together is way more important as winning. **Other information** * We are respectful and warm with each other. Our cultural and professional background is diverse * The host or regular players can ask misbehaving players to step out from the court * The venue has changing rooms and showers free of charge (for the lockers you have to bring your own padlock) * If you have questions, you can send me a message any time. I speak german too.

We all have psychological needs that shape how we feel, think, and behave. Science shows that things like feeling safe, connected to others, valued, and having meaning in life are essential for mental health. Different theories—from Freud to modern research by Edward L. Deci and Richard M. Ryan—describe these needs in different ways, but they largely agree on one thing: when our needs are met, we function well; when they are not, we struggle. In this short talk, we’ll look at what science actually knows about psychological needs—simply and without jargon.

Join us for our regular and casual Friday evening, on playing Padel. We reserve our right to adapt the setup according to the audience level, vibe, health, weather, shape etc SETUP ● 2 courts (2 vs 2), 1 team is rotating or taking a rest court 1: minim 6 players court 2: minim 4 players ● 2 courts - 10-12 people (more players, we make small teams and play shorts, all combination; the hosts have the last word. proposals are welcome) ● The event organisers or experienced player are entitled to send players on the second court ● We are respectfull and warm with each other, our cultural and professional background is diverse. ● New proposals are welcome :). Sometimes we adapt. ● The host toghether with the regular players, can ask new or misbehaved players to step out from the court, in order to maintain the good vibes Price to pay (in cash) (Aprox, for this season, could vary with 1-2 euros) ■ 10 euros for 1h ■ 17 euros for 2h ■ If you need a racket, you can rent it from us for 2 € (if available). Otherwise you can always rent from the venue for 5 €. ■ Cancelation 4-6h, ahead or you pay 10 euros the fee for 1h ● We use the monney to cover the courts rent & subscription for renting, smaller hostings or welcome expenses Important ● New commers, intermediate, out of shape, friendly players are playing on their own risk. If they choose to play with advanced players in a more "competitive" way (hitting the ball in the direction of opponent player is allowed). ● Playing competitive is allowed on the first court ● Playing friendly is our main goal. For this we understand both advanced people, who want to consume their energy, and the social people who play for fun. Please collaborate on the court and don't go to advanced court if you are injured or recovering from illness. ● Please anounce the hosts and/or the players on your court, if you have some injuries or specific conditions. ● We love to play social and all levels. ● Be welcoming with newcomers ● Once you know us (couple of games together), You are welcome to hang out with us, even when you can't play.

Why is it that we strive so deeply to fulfill what seems to be our most fundamental human longing - yet so often fall short? Could it be that the roots of this struggle lie in subtle misconceptions about who we are - and what we seek in others? And if so, is there a different way of relating… one that truly works? In a small, carefully curated group of like-minded individuals, we create a space for thoughtful exploration of these questions. The evening begins with a short talk by Alan Watts – On the most fundamental human desire. This is followed by a facilitated conversation, where we reflect on the key ideas and how they resonate with our own experience. After a short break, we gently shift from dialogue into silence—turning inward, allowing space for deeper insight, reflection, and inner resonance. An evening for those who are drawn to depth, authenticity, and the exploration of life’s essential questions—in connection with others, and with oneself. Hosted by Dieter Langenecker, facilitated by Tom Stub. Tanja Odermatt PS: We’ll officially close at 8:00 pm — and if you feel like staying a little longer, you’re very welcome. PS: A contribution of €20 will be collected to cover the costs, like room, coffee, tea, juice, and cookies. Additional donations are most welcome. PPPS: 1st door (if closed) use code 2008 + push the button with the bell symbol; at the 2nd door ring at Int'l. Management Institute/ System. Institute. Then take the elevator to the 3rd floor, apartment #49. Message us at 0681 1069 1321 for any issue

We will meet in a calm and friendly place ( Parc, Café, Restaurant) to explore together some of Jiddu Krishnamurti’s key questions about awareness, relationship, and freedom. There will be no teaching, no authority — only open dialogue and attentive listening. Everyone is welcome, whether you are familiar with Jiddu Krishnamurti or simply curious about life and self-understanding. We’ll start with an open conversation around a theme such as “Listening without judgment” or “Can thought bring clarity?” Please bring openness, curiosity, and a readiness to listen — no books or notes needed. The spirit is not to discuss “what should be,” but to observe together “what is.”

When judging morality, should we prioritize **intentions/duty** or **outcomes/results**? It introduces two influential philosophers as representatives of these approaches. * **Immanuel Kant (deontology):** An action is moral when it is done from **duty** and follows rational, universal principles (the **categorical imperative**). Certain acts—like lying—are wrong regardless of the consequences; you can’t do a wrong thing for a right reason. * **John Stuart Mill (utilitarian consequentialism):** The morality of an action is determined by its **effects**, specifically how much **happiness/well-being** it produces. Mill argues that some pleasures are “higher” than others, and that good intentions don’t redeem harmful outcomes. ## Discussion Questions 1. **The lying dilemma:** A murderer comes to your door and asks if your friend is hiding inside. Kant would say you must not lie. 2. **Can good intentions rescue a bad outcome?** 3. **The organ harvest problem:** A surgeon has five patients dying of organ failure and one healthy patient in for a checkup. Killing the one to harvest organs would save five lives, and the math works out for the utilitarian. Why does this feel so deeply wrong? Is that feeling a point in Kant's favor, or just a bias we should overcome? 4. **Do rules need exceptions?** Kant insists moral rules must be universal, with no exceptions. But most of us can imagine extreme scenarios where any rule seems like it should bend. Does the need for exceptions fatally undermine deontology, or is the strength of the system precisely that it refuses to bend? 5. **Who gets to calculate the consequences?** Utilitarianism asks us to maximize good outcomes, but we're notoriously bad at predicting consequences. If we can't reliably know the results of our actions, is it practical to base our entire moral system on outcomes? Does this uncertainty push us back toward rules and principles? 6. **Everyday morality:** Think about a real moral decision you've made recently, even a small one. Did you reason more like a Kantian (what's the right thing to do in principle?) or more like a utilitarian (what will produce the best result?)? Do most people naturally lean one way? 7. **Justice vs. the greater good:** A town can prevent a deadly plague by sacrificing one innocent person. The greater good is clearly served. But is it just? Can an action be morally right and deeply unjust at the same time? 8. **The big synthesis question:** Are these two systems actually opposed, or do they often arrive at the same answers by different paths? Is it possible that we need both: rules to guide us in the moment and consequences to evaluate systems and policies over time?

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.

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Salsamante Dance Academy will be at Swerve Every Tuesday Night to share the Rhythm & Energy of Bachata & Salsa. These are Beginner Level lessons to get you comfortable and understand the two dances. Spread the Good News to all. Swerve Dance & Fitness Complex 640 Lakeview Plaza Blvd A, Worthington, OH 43085 Bachata 7pm-8pm Salsa 8pm-9pm $15 - One Lesson $20 - Both Lessons

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

Join us for lunch/tea at Asterisk Supper Club to discuss our May book "Under the Oak Tree" by Suji Kim Lady Maximilian is the daughter of the powerful Duke Croyso, but she is rarely allowed outside her family’s sprawling castle for fear that her stutter will tarnish their noble name. When she is forced to marry Sir Riftan, a lowborn knight caught in one of her father’s schemes, Maxi doesn’t dare hope for happiness, let alone love. Her stumbling communication and his gruff manner sour their relationship before it can begin, and Riftan leaves without a word the morning after their vows are exchanged. Now, three years after their disastrous wedding night, Riftan has returned as a war hero. To Maxi’s surprise, despite rumors that he was offered marriage to Princess Agnes, a beautiful and renowned sorceress, Riftan still wants Maxi for his wife. And when he comes to claim her, his longing becomes a desire that bewilders Maxi, even as she is overcome by the scorching heat that Riftan’s presence ignites within her. As she learns to navigate the intricacies of her new life, Maxi will find herself and her courage, and discover that she is anything but powerless.

Practical AI for Power BI Developers A year ago, “agentic AI” was mostly hype for Power BI teams. Today, it deserves your undivided attention. For Power BI pros, there is now a real opportunity to reduce repetitive development work, accelerate delivery, and help developers do more, but only when strong DataOps practices are in place to make AI workflows effective. This session is a no-nonsense introduction to effective AI patterns for Power BI and Fabric development. Along the way, we will make sense of the growing pile of terminology, including skills, plugins, hooks, and MCP. You will see examples of how modern AI tooling can help with development tasks across Power BI and Fabric, along with the prerequisites, guardrails, and DataOps principles needed to use it responsibly. Whether you're burned out on AI hype or already using Copilot CLI daily, this session will show you the foundations that are finally making AI-assisted development genuinely useful.