Roland Fraïssé was a French mathematician known for his work in various areas of mathematics, particularly in mathematical logic and set theory. One of his notable contributions is related to the field of model theory and the study of the properties of structures in mathematics. He is also associated with concepts in infinitary logic and the foundations of mathematics.

Roman Stanisław Ingarden was a prominent Polish philosopher and phenomenologist, known for his contributions to aesthetics, epistemology, and the philosophy of language. He was born on February 5, 1893, in Lwów, Poland (now Lviv, Ukraine), and passed away on June 14, 1970.

Root-mean-square deviation (RMSD) of atomic positions is a statistical measure used to quantify the differences between two sets of atomic coordinates, typically in the context of molecular modeling, computational chemistry, and structural biology. It is often used to assess the similarity between a predicted structure (e.g., from molecular dynamics simulations or modeling) and a reference structure (e.g., an experimentally determined structure like an X-ray crystal structure).

The Rossiter–McLaughlin effect is an astrophysical phenomenon observed during transits of exoplanets, specifically when a planet passes in front of its host star from our viewpoint. This effect occurs because the planet partially blocks the star's light and causes a distortion in the Doppler shift of the star's light as seen from Earth. When a planet transits, it blocks different parts of the star's surface as it moves across it.

"Ross Street" could refer to a specific street name found in various cities around the world. Without more context, it's difficult to pinpoint a particular location or significance. There are likely multiple streets named Ross Street in different regions, each with its own unique characteristics, businesses, and residential areas.

The permanent of a square matrix is a function that is somewhat similar to the determinant but differs in the signs of the terms involved.

The Rothe–Hagen identity is a mathematical identity related to the theory of partitions, specifically concerning the representations of integers as sums of parts. While detailed references specific to the identity might be scarce, it is often discussed in the context of combinatorial mathematics or number theory. The identity is named after mathematicians who have contributed to partition theory and can be expressed in various forms. Generally, it can relate different ways of summing integers or the coefficients of generating functions.

Russell J. Donnelly is a physicist known for his work in the field of condensed matter physics, particularly in relation to superfluidity and quantum fluids. He has made significant contributions to the understanding of the properties of superfluid helium, among other topics. Donnelly has published numerous scientific papers and has been involved in various academic and research initiatives throughout his career.

Rutherford scattering is a phenomenon observed in the early 20th century that provided critical insights into the structure of the atom. It was first conducted by the physicist Ernest Rutherford in 1909 during experiments designed to investigate the properties of atomic structure, particularly the nucleus. In the experiment, Rutherford directed a beam of alpha particles (which are positively charged helium nuclei) at a thin foil of gold.

Ruth Rice Puffer was an American artist known for her contributions to the field of visual arts, particularly in painting and printmaking. Her work often explored themes of nature and personal experience, and she gained recognition for her unique style and technique. In addition to her artistic endeavors, Puffer was involved in teaching and fostering creativity in others.

Sabrina Stierwalt is an astrophysicist and educator known for her work in the field of astronomy and her efforts to promote science communication and education. She has been involved in research related to galaxies and their formation, as well as public outreach to engage wider audiences in scientific topics. Stierwalt is also known for her ability to connect with non-expert audiences, making complex scientific concepts more accessible.

Sally Dawson is a theoretical physicist known for her work in particle physics and, in particular, for her contributions to the understanding of hadron collisions and the properties of the strong force. While her primary research has focused on theoretical aspects of high-energy physics, she has also been involved in various committees and leadership roles within the physics community.

Samarendra Nath Biswas may refer to an individual, but it’s unclear without additional context as this name could belong to multiple people in different fields.

Samuil Micu-Klein, often referred to simply as Samuil Micu, was a Romanian poet, translator, and literary figure born in 1810 and passing away in 1872. He is known for his contributions to Romanian literature and for his role in promoting the use of the Romanian language in literature.

The Santa Cruz Institute for Particle Physics (SCIPP) is a research institute affiliated with the University of California, Santa Cruz (UCSC). Established to foster research in particle physics, astrophysics, and cosmology, SCIPP focuses on various scientific endeavors, including the study of fundamental particles, the nature of dark matter, and the evolution of the universe.

Sara Majetich is a notable figure in the field of chemistry, particularly known for her expertise in experimental and theoretical methods related to chemistry. She has made significant contributions to the understanding of various chemical processes, and her work often involves the study of molecular structures and their interactions.