"S. B. Rao" could refer to a variety of individuals depending on the context, as it is a relatively common name in India and potentially other regions. Without additional context, such as the field (e.g., academia, politics, science) or a more specific reference, it is difficult to provide a precise answer.

Ermelinda DeLaViña does not appear to be a widely recognized or notable figure in public knowledge as of my last update in October 2023. It's possible that she could be a private individual, a character in a story, or a lesser-known personality in a specific field.

Ewa Kubicka is a name that could refer to various individuals, and without more context, it's difficult to pinpoint one specific person.

As of my last update in October 2021, there doesn't appear to be notable information or widespread recognition for an individual or entity named "Maria Hasse." It's possible that she could be a private individual, a fictional character, or a new figure who has emerged since my last update.

Renu C. Laskar is likely a person, but there may not be widely available public information about her, as she might not be a widely recognized public figure or celebrity. If you have any specific context, such as her profession or notable contributions, that could help clarify who she is. Otherwise, without more details, it’s difficult to provide a specific answer. If you meant something else or if Renu C. Laskar pertains to a different context or topic, please provide further details!

Gerhard Ringel (1924–2017) was an accomplished Austrian mathematician known primarily for his contributions to topology and combinatorial mathematics. He is particularly noted for his work in the field of graph theory and has made significant contributions to the study of maps on surfaces, as well as the development of concepts related to the colorability of graphs. Ringel is also recognized for the Ringel-Youngs theorem and had collaborations that further enriched the field of mathematical research.

Hansjoachim Walther is a German mathematician known for his contributions to various areas of mathematics, particularly in functional analysis and differential equations. His work often focuses on the theoretical aspects of these fields.

Hassler Whitney was an influential American mathematician known for his contributions to topology and related areas of mathematics. He is particularly recognized for his work in the field of algebraic topology and for his contributions to the development of various mathematical theories and concepts. One of his notable contributions is the Whitney embedding theorem, which addresses how manifolds can be embedded into Euclidean spaces. This work has had significant implications in both pure mathematics and applied fields.

Herbert Grötzsch (1914–2003) was a German mathematician known for his contributions to graph theory and combinatorial geometry. He is often recognized for the Grötzsch Graph, which is a notable example in the study of properties of graphs, particularly in relation to coloring and planar graphs. The Grötzsch Graph is a triangle-free graph that requires four colors for a proper coloring, illustrating concepts in the field of graph coloring.

Ilona Palásti is a Hungarian opera singer, known for her work as a soprano. She has performed in various opera productions and concert halls, showcasing her vocal talent and versatility.

Irene Sciriha is a prominent Maltese academic and researcher known for her work in the fields of education and technology. She has held various academic positions and has contributed to the development of educational programs and policies in Malta and beyond. Her research often focuses on topics related to educational technology, digital learning, and innovative teaching methods.

Jan Kratochvíl is not widely known in popular culture or significant historical events; rather, the name might refer to various individuals in fields such as sports, academia, or other professions, particularly in regions like the Czech Republic.

Jeanette McLeod does not appear to be a widely recognized figure based on the information available up to October 2023. It's possible she could be a private individual, a lesser-known artist, academic, or a character in a story, but without more context, it's difficult to provide detailed information.

Jeannette Janssen does not seem to be a widely recognized name in common knowledge or popular culture as of my last update in October 2021. It's possible that she may be a private individual, a professional in a specific field, or perhaps someone who has gained prominence after that date.

Jenny McNulty is a stand-up comedian, writer, and actress, known for her work in the LGBTQ+ community. She has performed in various comedy clubs, festivals, and events, often drawing on her own experiences and perspectives. In addition to her stand-up work, McNulty has been involved in web series and other media projects. She is recognized for her humor, engaging personality, and contributions to queer comedy.

Jin Akiyama is a Japanese title that refers to a character in the popular video game series "Yakuza" (known as "Ryū ga Gotoku" in Japan). Jin Akiyama is a key figure in "Yakuza 4," where he is introduced as one of the playable characters. He is known for his unique backstory as a loan shark and his character development throughout the game.

Joan Hutchinson could refer to various meanings depending on the context, such as a person's name or a fictional character. However, without additional context, it's challenging to provide a specific answer.

John William Theodore Youngs may refer to an individual, but I don't have specific information about a person by that name in widely available historical or contemporary records. It's possible that he could be a private individual not well-documented in public databases or literature.

K. R. Parthasarathy is an Indian mathematician known for his contributions to graph theory and combinatorics. He has been involved in various research areas within these fields and has published numerous papers on topics related to graph properties, algorithms, and mathematical structures. Parthasarathy's work often emphasizes theoretical aspects of graph theory, including invariants, graph colorings, and connectivity.

Karen L. Collins could refer to several individuals, but without more context, it's unclear which specific person you are asking about. One notable figure is Karen L. Collins, an expert in nutrition and health, particularly focusing on food and chronic disease prevention. She has contributed to research and education in the field. If you have a specific context or area (e.g., academia, healthcare, literature) in mind regarding Karen L.