A macrocyclic ‛Co0’ complex: the relevance of ligand non-innocence to reactivity

We present a formally zero-valent compound, [Co(Mabiq)Na(OEt2)]2 (1). The complex was characterized by crystallographic, spectroscopic and DFT computational methods. The electronic structure is described as a CoII–(ligand-biradical). Compound 1 is reactive toward proton sources; CoI or CoII products result, depending on the source of protons used. The redox non-innocence of the Mabiq ligand, which accepts both protons and electrons, has important ramifications for reactivity

The Digital Life of Walkable Streets

Walkability has many health, environmental, and economic benefits. That is why web and mobile services have been offering ways of computing walkability scores of individual street segments. Those scores are generally computed from survey data and manual counting (of even trees). However, that is costly, owing to the high time, effort, and financial costs. To partly automate the computation of those scores, we explore the possibility of using the social media data of Flickr and Foursquare to automatically identify safe and walkable streets. We find that unsafe streets tend to be photographed during the day, while walkable streets are tagged with walkability-related keywords. These results open up practical opportunities (for, e.g., room booking services, urban route recommenders, and real-estate sites) and have theoretical implications for researchers who might resort to the use social media data to tackle previously unanswered questions in the area of walkability.Comment: 10 pages, 7 figures, Proceedings of International World Wide Web Conference (WWW 2015

The Student Movement Volume 107 Issue 13: We\u27ve Got the Spirit: Students Celebrate Dr. Luxton

HUMANS Best of Bon Appetit, Nora Martin Interview with the Dean of Lamson and Meier Halls, Interviewed by: Grace No The Joy of Japan, Interviewed by: Gloria Oh ARTS & ENTERTAINMENT A Creation Adventure, Nathaniel Reid Currently: Velma, Solana Campbell Suite Dreams for Sweet Dreams, Skylor Stark Where do I Find God? Part II, Anonymous NEWS AUSA Celebrates 100 Years of Student-Led Action, Andrew Francis Response to A House Divided Story, Christon Arthur, Provost Where\u27s the Harm in True Crime?. Abigail Kim IDEAS Redefining Free Agency in Sports, Andrew Francis Flying Cars of 2030, Rachel Ingram-Clay The Spooky Nature of Our Physical World, Alexander Navarro The State of AI, Abby Shim PULSE Debunking Myths Surrounding J.N. Andrews Honors Program, Gloria Oh Our Dear AU: A Spirit Week Tour, Lexie Dunham Romance and Reading, Gloria Oh LAST WORD An Ode to Tea, Alexander J. Hesshttps://digitalcommons.andrews.edu/sm-107/1012/thumbnail.jp

The Student Movement Volume 107 Issue 1: We\u27re Back: Andrews Begins First Post-Covid School Year

HUMANS Interview of NEST performer: Sandrine Adap, Interviewed by: Nora Martin Meet Helena Hilton!, Interviewed by: Nora Martin Meet Aya Pagunsan, AUSA President, Interviewed by: Lauren Kim ARTS & ENTERTAINMENT Currently..., Solana Campbell Film and a Fling, Jonathon Woolford-Hunt Fleabag: Simply Human, Lily Rodriguez Summer Rewind, Ysabelle Fernando NEWS Andy\u27s Welcome Back Party, Gloria Oh News Analysis: Gun Violence in Cities, Julia Randall What\u27s New? Genesis Fellowship, Lauren Butler IDEAS Bring Balance to the Forest, Alexander Navaro In Rebuttal of Andrew Tate, Elizabeth Getahun Student Loan Forgiveness, Gabriela Francisco The Death of Her Majesty Queen Elizabeth II: The Right to Mourn (and Not), Alexander J. Hess PULSE Campus Life After Covid-19: A Newfound Freedom, Amelia Stefanescu Environmental Fridays Begins a New Season, Princella Tobias Freshmen Advice, Gloria Oh What to Eat in a Small Town, Lexie Dunhamhttps://digitalcommons.andrews.edu/sm-107/1000/thumbnail.jp

The Student Movement Volume 107 Issue 16: Soul Lounge, Self-Care, and Stripple Breakfast Burritos: There\u27s Something for Everyone

HUMANS AU\u27s Favorite Classes, Solana Campbell Becoming Multilingual, Gloria Oh Greatest Gazebo Orders, Solana Campbell Interview with VP Nixon, Caryn Cruz ARTS & ENTERTAINMENT Currently: Babel, Terika Williams That 90\u27s Love: BSCF Soul Lounge, Skyler Campbell The Therapist, Marcel Mattox NEWS Experience Andrews University\u27s Community Adult Education, Gloria Oh Joyful Resilience: An Art Experience at AU, Solana Campbell Students Share Their African Heritage at Short Course, Andrew Francis IDEAS The Future of Self-Care, Katie Davis The Straw that Breaks the Camel\u27s Back? Beyoncé and the 2023 Grammys, Alexander J. Hess Death Toll Passes 41,000: Turkey and Syria Earthquakes, Abby Shim PULSE A Conversation with an NBA Physician, Reagan McCain Nick Bishop and Honduras, Interviewed by Abraham Bravo LAST WORD Intelligence, Artificial and Otherwise: A Reflection on Extended Cognition, ChatGPT, and Neurodivergence, Lily Burkehttps://digitalcommons.andrews.edu/sm-107/1015/thumbnail.jp

The Student Movement Volume 107 Issue 20: Andrews Students Spring Back from Break: Six More Weeks to Go

HUMANS Meeting Dr. McCree, Interviewed by: Grace No Interview with Dr. Luxton: Saying Goodbye, Interviewed by: Grace No Spring Break Renovations & Relaxation, Caryn Cruz ARTS & ENTERTAINMENT Currently: The Last of Us, Solana Campbell Spring Break Spotlight, Amelia Stefanescu What Happened to Wang in the Costco Bathroom?, Nora Martin NEWS Experiences Living in Lamson Hall, Abigail Kim Time is Ticking for TikTok, Brendan Oh WEAAU x CFE Service Sabbath, Terika Williams IDEAS Inequality Drags on in Tennessee, Alexander J. Hess On Value: True Crime and the Search for Meaning, Nora Martin When Winds Change: The Legacy of President Luxton, Bella Hamann PULSE A Trip to the Museo , Chris Ngugi AUSA Senates Holds Bon Appétit Forum, Neesa Richards Speaking Up With Women Press Release, Nicholas C. Gunn LAST WORD A Week of Rest and Relaxation ... Almost, Grace Nohttps://digitalcommons.andrews.edu/sm-107/1019/thumbnail.jp

Vortex formation with a snapping shrimp claw

Snapping shrimp use one oversized claw to generate a cavitating high speed water jet for hunting, defence and communication. This work is an experimental investigation about the jet generation. Snapping shrimp (Alpheus-bellulus) were investigated by using an enlarged transparent model reproducing the closure of the snapper claw. Flow inside the model was studied using both High-Speed Particle Image Velocimetry (HS-PIV) and flow visualization. During claw closure a channel-like cavity was formed between the plunger and the socket featuring a nozzle-type contour at the orifice. Closing the mechanism led to the formation of a leading vortex ring with a dimensionless formation number of approximate ΔT*≈4. This indicates that the claw might work at maximum efficiency, i.e. maximum vortex strength was achieved by a minimum of fluid volume ejected. The subsequent vortex cavitation with the formation of an axial reentrant jet is a reasonable explanation for the large penetration depth of the water jet. That snapping shrimp can reach with their claw-induced flow. Within such a cavitation process, an axial reentrant jet is generated in the hollow cylindrical core of the cavitated vortex that pushes the front further downstream and whose length can exceed the initial jet penetration depth by several times

The Student Movement Volume 107 Issue 11: Have a Merry Christmas! XOXO, The Student Movement

HUMANS Coping with Finals, Solana Campbell Meet Jea Erazo, AUSA Public Relations Officer. Interviewed by: Caryn Cruz Remembering Sharon Dudgeon, Grace No Women in STEM: Olivia Joyce, Interviewed by: Gloria Oh ARTS & ENTERTAINMENT Football Sunday, Nathaniel Reid, Skylor Stark Student Picks: Christmas Classics, Ysabelle Fernando NEWS AFIA x MLS Christmas Party, Ceiry Flores Boycotts and Bans at the Qatar World Cup, Hannah Cruse In Loving Memory of Seth Williams, Gloria Oh IDEAS How Do We Address Queer Violence?, Alexander J. Hess Is Reality Really Real When You Aren\u27t Really Looking?, Alexander Navarro Reflecting on Christmas Traditions, Rachel Ingram-Clay The New Era of Book Bans, Elizabeth Getahun Why is Everyone so Happy During Christmastime?, Kayla-Hope Bruno PULSE Bon Appétit and the Threat to Cultural Autonomy, Wambui Karanja It\u27s OrnaMEANT to be a Wonderful Christmastime, Lexie Dunham It\u27s the Most Stressful Time of the Year, Reagan McCain Qatar Controversy: The Shadow Behind the World Cup, Melissa Moore Reflections on the Semester and Plans for Break, Elizabeth Dovich LAST WORD A Student Movement Christmas, The Student Movement Staffhttps://digitalcommons.andrews.edu/sm-107/1010/thumbnail.jp