Columnar Databases

***For this event, we are opening a limited number of spots (about 15) to non-members who may be interested in getting to know our community while enjoying a relaxed social gathering.*** ***Must purchase your ticket on [Eventbrite](https://www.eventbrite.com/e/neurodivergent-friendly-spring-rooftop-meetup-tickets-1989847052098) to be added to guest list.*** ***This event is free for Constellations members.*** Join our[ free singles database](https://internal-icicle-6c4.notion.site/337184d944c780458ef2c61404a85be0). Join us for stunning city views, comfortable indoor space, board games, light refreshments, and an opportunity for new connections. This is our annual Spring Rooftop Meetup hosted by Constellations in downtown Washington, D.C. \*\*\*[Constellations ](https://www.harringtonmatchmaking.com/constellations-membership)\*\*\**is a neurodivergent-affirming membership that supports adults in building friendships and romantic relationships. It is designed for those who want thoughtful pacing and guidance — without the timeline or cost of a full-service matchmaking package. Members receive access to a private member portal with coaching support, social events, and community spaces.* Most attendees will be neurodivergent adults with low support needs in their 20s, 30s, 40s, early 50s. Some people attend to make friends and expand their social circle, while many others are single and open to dating and meaningful connection. You can expect: • A welcoming, low-pressure atmosphere • Snacks, appetizers, and light refreshments • Beer and wine available for those who choose to drink • Board games and activity stations to help make conversation easier • Comfortable spaces to sit, talk, and connect Space is limited and advance registration is required. To learn more about[ ](https://www.harringtonmatchmaking.com/constellations-membership)**[Constellations](https://www.harringtonmatchmaking.com/constellations-membership)**, visit our **[website](https://www.harringtonmatchmaking.com/constellations-membership)**. [Contact us ](https://www.harringtonmatchmaking.com/contact) at [Harrington Matchmaking](https://www.harringtonmatchmaking.com) with any questions.

Learn more about our Home Buyer Program * get up to $202k in down payment assistance through HPAP * get up to $25K in grants from Maryland Mortgage Program * downpayment assistance options through DC Open Doors * how to qualify and what loans are available * loan application and approval process * repeat home buyer options * purchase price limits * market insight and home buying steps in a competitive market SIGN UP AT THE LINK BELOW: [https://www.enggarcia.com/egpwebinars/](https://www.google.com/url?q=https://www.enggarcia.com/egpwebinars/&sa=D&source=calendar&ust=1705256818169980&usg=AOvVaw0qgqMgQjduPHADDDggU6H6)

DC Code and Coffee is an inclusive, informal co-working session. It's community-led and community-run by devs, for devs. People of all skill levels attend. Whether you’re dev-curious, aspiring, or a professional developer, we’d love to have you! Come chat or learn to code on a Sunday afternoon with coffee and cool-inclusive people. Bring your laptop! We typically meet every month on the weekend. **Join our online community!** For all things Tech in DC and to get latest updates and tech events from the DMV area, join the [DCTech Slack](https://dctech.chat/). All DC Code & Coffee announcements are in the #dccodecoffee channel **How it works** Near the beginning of the event, we do an introduction circle. You say your name, what you can help others with, and what you would like help with. You can also share job opportunities. After the introduction circle, everything is self-organized.

Every Saturday at 11am! RSVP at the following link to receive login details: https://www.enggarcia.com/hbscaphill/ The Districts Best first time home buyer webinar Learn about the home buying process How to qualify & what loans are available Qualifying for DC Open Doors and other programs Reduced down payment and closing cost opportunities We're looking forward to seeing you soon!

Higher Grounds – Arlington is part of a growing network of gatherings where we create space for thoughtful, authentic dialogue about what matters most. Whether we’re exploring the nature of happiness, the challenges and possibilities of midlife, spirituality, culture, capitalism, parenting, or the role of art and travel in a meaningful life, every conversation is shaped by the people in the room. There’s no set leader or rigid agenda—just a shared commitment to listen as much as we speak. We start with brief introductions focused on what makes you you (not your LinkedIn bio), then dive straight into whatever is on people’s minds. The direction of each meetup emerges organically, making every event unique. MANDATORY: PLEASE REVIEW OUR COMMUNITY GUIDELINES IN THE GROUP DESCRIPTION. Everyone is expected to engage in respectful conversations and listen deeply as well as share. We have a zero tolerance policy of sexual harassment and hate speech. Come ready to share, reflect, and connect with others in Arlington who are also seeking deeper conversations. Suggested Questions: Life Stages & Transitions * What did you think you'd have figured out by now that you're still completely winging? * When did you realize your parents' advice was for a world that no longer exists? * What are you finally old enough to stop pretending to care about? Suggested Questions: Identity After the Roles * Who are you when nobody needs anything from you? * What dream keeps resurfacing even though the "practical" time has passed? * How do you handle having the freedom you always said you wanted? Suggested Questions: AI & Being Human * What human experiences will AI never truly understand? * If machines handled all your have-to's, what would you actually do? * What becomes more precious as everything becomes automated? Suggested Questions: Belief & Meaning * What certainties have you given up, and what rushed in to fill that space? * How has knowing someone who died changed how you live? * What do you believe now that would shock your younger self? Suggested Questions: The Modern Psyche * What anxiety do you carry that previous generations didn't have? * Which of your survival strategies are you ready to retire? * What uncomfortable truth about happiness did it take you years to accept? Suggested Questions: Work & Purpose * When did you stop believing that your job would complete you? * What would you do for work if money and status weren't factors? * How has your definition of "making it" changed over the years? Suggested Questions: Relationships & Connection * What relationship dynamic do you keep recreating, and why? * When did you realize your parents were just people trying their best? * What kind of loneliness doesn't go away even when you're with others? Suggested Questions: Time & Mortality * What are you running out of time to say or do? * How differently do you spend your time knowing it's finite? * What will you regret not trying, even if you fail? Suggested Questions: Society & Culture * What social convention do you follow even though it makes no sense? * Which generation do you understand least, and what might you be missing? * What aspect of how we live now will seem insane in 20 years? Suggested Questions: Personal Philosophy * What rule for life did you create after learning something the hard way? * When did you stop believing that everyone else had it figured out? * What paradox about life have you learned to live with?

Please join SalsaNow weekly at Sunday Latin Night at The Original Cancun Cantina. Come experience Sundays at The Original Cancun Cantina with SalsaNow. Baltimore's largest dance floor and a favorite club for many years. Dance lessons start at 7:00 pm for beginner level, and at 7:45 pm for intermediate level. Enjoy a weekly rotation of area's best DJs as they play music starting at 8:30 pm until closing. We all have a lot of fun here and we hope you will join us every Sunday for a classy casual and very friendly salsa night experience. Lesson Schedule: 7:00 PM Salsa Basics for beginners 7:45 Pm Salsa Patterns for intermediates Cost: $10 The Original Cancun Cantina is located conveniently just off I-295 and I-95, close to the Baltimore Washington Airport with plenty of convenient free parking at 7501 Old Telegraph Road, Hanover, MD 21076

Date: June 7 2026 Sunday 10:00 am - Noon EDT Full title: Machine Learning for Reliable Quantum Computing: An Algorithm–Hardware Co-Design Perspective Summary: Reliable quantum computing requires co-design across the full stack, including algorithm structure, compilation, and execution, rather than isolated optimization of any single layer. This talk presents a unified framework in which these layers are jointly optimized under realistic hardware constraints. Structure-aware compilation exploits algorithmic interaction graphs to reduce circuit depth; joint optimization across mapping, term ordering, and algorithm parameters yields significantly improved success probability; and execution-layer analysis reveals that error mitigation effectiveness depends critically on circuit symmetry and native gate choice. While demonstrated on superconducting quantum processors, the underlying co-design principles are potentially transferable across architectures. Building on this foundation, the talk highlights machine learning as the key enabler for closing the feedback loop: data-efficient, parameterized noise models learned directly from workload execution data achieve substantially improved predictive fidelity over vendor models without the overhead of dedicated characterization. These insights situate the co-design perspective within the emerging framework of quantum deep learning. In this broader setting, the talk also presents an operational definition, a unifying taxonomy, and a benchmarking protocol grounded in explicit resource contracts. Speaker: Dr. Yanjun Ji has an interdisciplinary research background in Physics and Computer Science. In 2020, she completed my Master's degree in Theoretical Physics at Saarland University. In 2024, she earned her Ph.D. in Computer Science at the University of Stuttgart. She is currently a postdoctoral researcher at Forschungszentrum Jülich. She is committed to interdisciplinary research at the cutting-edge convergence of quantum computing and artificial intelligence. Her research encompasses both foundational theoretical investigations and the development of practical applications, aiming to serve society and benefit humanity. Moderators: Dr. Pawel Gora, CEO of Quantum AI Foundation [Quantum AI Foundation](https://www.qaif.org/ "https://www.qaif.org/") Dr. Sebastian Zajac, member of QPoland [QPoland - QWorld](https://qworld.net/qpoland/ "https://qworld.net/qpoland/")

**Notice the new time. We are now 2-5pm.** Bring your own board games! The MoCo Pride Center has a few games as well. Newcomers welcome! You don't need to know anything, we will teach you how to play! We do not serve food. Note that you can bring drinks and food, but plan to leave the place tidy. Some of us may also get food together afterwards. Info about the MoCo Pride Center: [https://www.mocopridefamily.org/pride-center-home](https://www.mocopridefamily.org/pride-center-home) The Center is close to the **Bethesda Metro Station**. It is on the 2nd floor of the **Bethesda-Chevy Chase Regional Services Center**. Look for the **blue awning** that says Geste Beer at the cross of Old Georgetown Road -- the front entrance is directly to the left of this awning. The Bethesda-Chevy Chase Regional Service Center has an attached garage, which is accessible on Edgemoor. Go past the Center, then turn right at the stop sign across from the Metro stop. The garage is your first right. Payment is mobile using the ParkMobile app.

DMV’s longest running Mind-Body-Spirit-Eco event! 80+ exhibitors, 30+ workshops, new outdoor community building fun! $10, kids/parking FREE! **Join us for the mind-body-spirit-eco event of the season!** Explore and engage with 80+ exhibitors, attend any of 30+ workshops, and join the outdoor activities planned — all included in the price of admission - just $10 to stay all day! Kids 16 and under are FREE...and so is the parking! **[Our Summer 2026 Exhibitors..](https://www.pathwaysmagazineonline.com/exhibitors/ "https://www.pathwaysmagazineonline.com/exhibitors/").** • Enjoy mini healing sessions to sample different methods (massage, Reiki, stretch, reflexology, hypnosis) • Get a psychic, Tarot, shamanic or Angel reading; take a pic of your Aura when you visit the Aura Camera • Learn about traditional, complimentary and alternative health & medicine • Shop crystals, clothes, jewelry, oils, skincare, candles, books... hundreds of metaphysical, natural, organic and other products and services for your beauty, home, health and wellness Bill Sanda is offering mini-Akashic Record sessions throughout the day at Table #5. I will also be speaking at 1 pm on the Akashic Records and Light Language. **[Summer 2026 Workshop Schedule...](https://www.pathwaysmagazineonline.com/expo-speakers/ "https://www.pathwaysmagazineonline.com/expo-speakers/")** From alternative therapies and lifestyles, to spiritual, metaphysical and holistic health and wellness topics, our full day of workshops give you direct access to experts in several mind-body-spirit fields. Make connections and appointments, network with fellow attendees, and share in the energy only the Pathways Community can bring. Whether you're a seasoned natural living enthusiast or just beginning your journey, the Pathways Summer 2026 Natural Living Expo is the perfect opportunity to expand your knowledge, discover new products, and connect with others who are dedicated to living a more sustainable lifestyle. Stay connected through our [Summer Expo Main Page](https://www.pathwaysmagazineonline.com/expos-and-events/summer-expo/ "https://www.pathwaysmagazineonline.com/expos-and-events/summer-expo/") ... and join us for a day filled with inspiration, education, and fun!

[Profs and Pints Northern Virginia](https://www.profsandpints.com/washingtondc) presents: **“Psychedelic-Assisted Therapy,”** on findings, debates and trends in the use of psychedelic substances to treat trauma and other conditions, with Whitney Marris, instructor at the University of Buffalo’s School of Social Work, certified psychedelic-assisted therapy facilitator, and consultant to clinical trials. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/nv-psychedelic-assisted-therapy](https://events.ticketleap.com/tickets/profsandpints/nv-psychedelic-assisted-therapy) .] Psychedelics are rapidly moving from the margins into the mainstream, and questions abound as the sociocultural and legal landscapes surrounding them shift. President Trump’s recent executive order expanding access to psychedelic drugs for certain conditions and accelerating research on them has both heightened interest and added to confusion. Learn more about the so-called “Psychedelic Renaissance,” and get help separating the hope from the hype surrounding it, with Whitney Marris, a leading trainer and facilitator of psychedelic therapy who has used it to treat trauma survivors, military veterans, and people with cancer. She’ll present foundational information on what we know about how psychedelics work. You’ll learn how psychedelic-assisted therapy differs from “trip sitting” and about what we know about the effects of “microdosing” versus “macrodosing.” We’ll examine what has been demonstrated to be helpful versus harmful before, during, and after a dosing session intended to support significant, sustainable change. Marris also will discuss the historical and cultural context of the use of psychedelic medicines for healing, and she’ll describe the ethical challenges that arise as such practices move from counterculture to clinic. We’ll look at emerging and evolving findings in the field, as well as at the roles being played by various financial interests and ideologies in determining the direction of psychedelic-assisted therapy and research on its outcomes. Attendees will gain an awareness of the need for new professional standards and regulatory guardrails related to such work, and they’ll leave knowing key questions to ask potential providers of psychedelic-assisted therapy. (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image by Canva.

Join us for conversations that go beyond small talk, diving into topics like the shifting nature of spirituality, the challenges and joys of midlife transitions, the impact of culture and capitalism, and the search for meaning in art, travel, and daily life. Our gatherings are about genuine, thought-provoking dialogue, with no set leader or strict agenda—just an open space to share ideas, perspectives, and experiences that matter to us. The direction of the discussion is shaped by everyone who shows up, making each event unique and enriching. Come ready to share, reflect, and connect with others who are also seeking deeper conversations. Let the conversation flow from topic to topic. Optional questions are listed below.

Optional Questions: Life Stages & Transitions

1. What did you think you'd have figured out by now that you're still completely winging?
2. When did you realize your parents' advice was for a world that no longer exists?
3. What are you finally old enough to stop pretending to care about?

Optional Questions: Identity After the Roles

4. Who are you when nobody needs anything from you?
5. What dream keeps resurfacing even though the "practical" time has passed?
6. How do you handle having the freedom you always said you wanted?

Optional Questions: AI & Being Human

7. What human experiences will AI never truly understand?
8. If machines handled all your have-to's, what would you actually do?
9. What becomes more precious as everything becomes automated?

Optional Questions: Belief & Meaning

10. What certainties have you given up, and what rushed in to fill that space?
11. How has knowing someone who died changed how you live?
12. What do you believe now that would shock your younger self?

Optional Questions: The Modern Psyche

13. What anxiety do you carry that previous generations didn't have?
14. Which of your survival strategies are you ready to retire?
15. What uncomfortable truth about happiness did it take you years to accept?

Optional Questions: Work & Purpose

16. When did you stop believing that your job would complete you?
17. What would you do for work if money and status weren't factors?
18. How has your definition of "making it" changed over the years?

Optional Questions: Relationships & Connection

19. What relationship dynamic do you keep recreating, and why?
20. When did you realize your parents were just people trying their best?
21. What kind of loneliness doesn't go away even when you're with others?

Optional Questions: Time & Mortality

22. What are you running out of time to say or do?
23. How differently do you spend your time knowing it's finite?
24. What will you regret not trying, even if you fail?

Optional Questions: Society & Culture

25. What social convention do you follow even though it makes no sense?
26. Which generation do you understand least, and what might you be missing?
27. What aspect of how we live now will seem insane in 20 years?

Optional Questions: Personal Philosophy

28. What rule for life did you create after learning something the hard way?
29. When did you stop believing that everyone else had it figured out
30. What paradox about life have you learned to live with?

Let's get together to play some competitive quads and doubles volleyball. **COST**: FREE **Court Type**: Outdoor grass **Minimum Skill Requirements**: Intermediate (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details) Attention: 1. This event is **NOT on a first come-first serve** basis and players with higher skill level and players who can bring a net/ball will get priority over others on the wait list. 2. Since skill levels are **self-reported**, some new attendees may not meet the expected level. For doubles, we encourage you to choose a partner you can enjoy the game with, and since this a competitive event, it is okay if you make a strong team and win all the games. 3. Each person must help set up and take down one net, leaving some nets unset for latecomers. 4. Please answer all questions, so it's helpful for us to organize the event. **Smiley Social documents:** 1. [Group Rules](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg) 2. [Smiley Social Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/edit) 3. [Good doubles partner](https://docs.google.com/document/d/14weEw-P52XKx0P8K2l-ZOFtYU61wmfdkSkopbG5avro/) 4. [Liability Waiver](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco)

Topic to be announced. **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/azure-cbus-2026/

**💥 Join us THIS Saturday and EVERY Saturday!** **💥 At Columbus’ Hottest New Salsa Venue!** **.** Lincoln Street Salsa THIS Saturday and EVERY Saturday! 8 pm – 1 am **.** **💥 Gorgeously Renovated Studio!** **💥 Free Parking!** **💥 BYOB!** **💥 Easy Access from Highway!** **.** Lincoln Street Salsa 1717 Brice Rd Reynoldsburg, Ohio 43215 **.** **ENTRANCE IS ON THE NORTH SIDE OF THE BUILDING** **Behind Anthony’s Pharmacy!** **.** **PLEASE SHARE and help get the word out!** **.** **🟣 Salsa, Bachata, and Merengue Dancing!** **.** **🟣** 8:00 pm – 8:30 pm **𝗥𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻** **.** **🟣** 8:30 pm – 9:30 pm **𝗕𝗲𝗴𝗶𝗻𝗻𝗲𝗿 𝗗𝗮𝗻𝗰𝗲 Class!** **.** **🟣** 9:30 pm – 1 am **𝗢𝗽𝗲𝗻 𝗗𝗮𝗻𝗰𝗲 𝗣𝗮𝗿𝘁𝘆!** **.** **✅ Questions?** **Visit [LincolnStreetSalsa.com](https://columbussalsadancing.com/)** Or Text Todd: 614-774-8146 **.** **✅ No Experience Necessary!** **✅ No Partner Required!** **✅ Plenty of People to Dance With!** **.** **✅ $15 Cash / $16 Card** **✅ College Students $5 Off with Valid ID!** **✅ BYOB** **✅ Age 18+** **.** **✅ Lincoln Street Salsa is the perfect place for…** **.** **👉 Learning to Dance** **👉** Social Dancing **👉 Birthday Celebration** **👉** Bachelorette Parties **👉 Girl’s Night Out** **👉 Date Night** **👉** Getting Fit / Burning Calories **👉 Meeting New People** **👉** Having Fun, Fun, Fun! **.** ✅ **Questions?** Visit [LincolnStreetSalsa.com](https://columbussalsadancing.com/ "https://columbussalsadancing.com/") Or Text Todd: 614-774-8146 .

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. So please RSVP for a head count!

**💥 Join us THIS Saturday and EVERY Saturday!** **💥 At Columbus’ Hottest New Salsa Venue!** **.** Lincoln Street Salsa THIS Saturday and EVERY Saturday! 8 pm – 1 am **.** **💥 Gorgeously Renovated Studio!** **💥 Free Parking!** **💥 BYOB!** **💥 Easy Access from Highway!** **.** Lincoln Street Salsa 1717 Brice Rd Reynoldsburg, Ohio 43215 **.** **ENTRANCE IS ON THE NORTH SIDE OF THE BUILDING** **Behind Anthony’s Pharmacy!** **.** **PLEASE SHARE and help get the word out!** **.** **🟣 Salsa, Bachata, and Merengue Dancing!** **.** **🟣** 8:00 pm – 8:30 pm **𝗥𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻** **.** **🟣** 8:30 pm – 9:30 pm **𝗕𝗲𝗴𝗶𝗻𝗻𝗲𝗿 𝗗𝗮𝗻𝗰𝗲 Class!** **.** **🟣** 9:30 pm – 1 am **𝗢𝗽𝗲𝗻 𝗗𝗮𝗻𝗰𝗲 𝗣𝗮𝗿𝘁𝘆!** **.** **✅ Questions?** **Visit [LincolnStreetSalsa.com](https://columbussalsadancing.com/)** Or Text Todd: 614-774-8146 **.** **✅ No Experience Necessary!** **✅ No Partner Required!** **✅ Plenty of People to Dance With!** **.** **✅ $15 Cash / $16 Card** **✅ College Students $5 Off with Valid ID!** **✅ BYOB** **✅ Age 18+** **.** **✅ Lincoln Street Salsa is the perfect place for…** **.** **👉 Learning to Dance** **👉** Social Dancing **👉 Birthday Celebration** **👉** Bachelorette Parties **👉 Girl’s Night Out** **👉 Date Night** **👉** Getting Fit / Burning Calories **👉 Meeting New People** **👉** Having Fun, Fun, Fun! **.** ✅ **Questions?** Visit [LincolnStreetSalsa.com](https://columbussalsadancing.com/) Or Text Todd: 614-774-8146

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm