• Chemistry, Chemical Engineering (includes Polymer Science)

• 541.

Gordon Research Conferences

An international forum for the presentation and discussion of scientific research at the frontiers of science.

• Jewish

• 542.

Institute of Semitic Studies Inc

Institute of Semitic Studies Institute for Advanced Semitic and Afroasiatic Studies Africa Peace Center P.

• Leadership Development

• 543.

Young Nonprofit Professionals Network of Chicago

YNPN Chicago strengthens the nonprofit community by providing professional development, resources, & networking opportunities for young professionals YNPN Chicago strengthens the nonprofit community by providing accessible professional development, resources, and networking opportunities for young professionals involved in the Chicago-area nonprofit sector.

• Mathematics

• 544.

Orion Abacus Association

Latest Events March 17 2024 OAA Annual Meeting 10 Year AnniversaryDecember 28 2023 Visit Taiwans Abacus School ConferenceDecember 17 2023 TA Training Camp and Teachers Workshop 10am 4pmDecember 16 2023 AIAMA WARP Season 4 CompetitionDecember 4 2023 OAA MeetingOAYO MeetingNovember 20 2023 OAYO officers meetingNovember 4 2023 MM Go World Championship View all rightarrow Past Events 2023 OAA and OAYO Activities and Events Jan 5 2024 2019 OAA Assessment Test and Scholarship Award Ceremony May 19 2019 2019 OAA 5th Anniversary OAYO Handing Ceremony March 10 2019 Hsinho Wu 2017 Assessment Test April 30 2017 Phina Chen 2017 Assessment Test April 30 2017 Ian Suen 2017 Global Cup Championship January 22 2017 2016 Orion Abacus Association Assessment Test and Scholarship Award Ceremony May 21 2016 View all rightarrow Videos 2019 OAA Assessment Test 2017 OAA Assessment Test Sponsors The Orion Abacus Association is proud to be sponsored by .

• Educational Services and Schools - Other

• 545.

Fiesta for the Mind

Where x=independently organized TED event.

• Eye

• 546.

International Society for Contact Lens Research

THE INTERNATIONAL SOCIETY FOR CONTACT LENS RESEARCH IS A GROUP WHO EXCHANGES KNOWLEDGE IN CONTACT LENSES AND ALLIED SCIENCES TO ENCOURAGE SCIENTIFIC RESEARCH AND EDUCATIONAL ADVANCEMENTS.

• Recreational, Pleasure, or Social Club

• 547.

Fallscon Gaming Convention

FallsCon is a tabletop gaming convention in Wichita Falls, Texas FallsCon brings people together to create safe and inclusive communities, share the benefits of gaming, and support academic goals through financial aid.

Professional BusinessWomen of California

PBWC's Annual Conference: San Jose on May 6.

Society for Advancement of Chicanos

National SACNAS Headquarters Advancing Chicanos/Hispanics & Native Americans in Science for 50 years.