In topology, a **scattered space** is defined as a topological space in which there are no non-empty subsets that are dense in the space. More formally, a topological space \( X \) is called scattered if every non-empty subset \( A \) of \( X \) contains a point \( x \) such that the closure of \( \{x\} \) in \( X \) does not include any other points of \( A \).

The 19th century was an important period for physics in Switzerland, marked by several notable Swiss physicists who made significant contributions to various fields. Here are a few prominent figures: 1. **Jean-Baptiste Pierre Antoine de Monet, Chevalier de Lamarck (1744-1829)** - Although primarily known for his work in biology and the development of the theory of evolution, Lamarck had a background in physics and natural sciences.

Faouzia Charfi, commonly known as Faouzia, is a Moroccan-Canadian singer-songwriter known for her powerful vocals and fusion of pop and Arabic music. Born on July 5, 2000, in Casablanca, Morocco, she moved to Canada at a young age and has gained international recognition for her music. Faouzia often blends various musical styles and incorporates themes of love, empowerment, and personal growth in her lyrics.

Stephan Narison does not appear to be a widely recognized name or term in popular culture, history, or any established field up until my last update in October 2023. It’s possible that the name refers to a private individual or a lesser-known figure.

As of my last knowledge update in October 2023, there isn't a widely recognized figure named Vladimir Baryshevsky. It's possible that he could be a private individual or a professional not widely covered in major news or public databases.

Structural biologists are scientists who study the molecular structure of biological macromolecules, such as proteins, nucleic acids, and complex assemblies like ribosomes and viruses. Their primary aim is to understand the three-dimensional shapes and arrangements of these molecules, as well as how these structures relate to their functions in living organisms.

Ali Khamenei, the Supreme Leader of Iran, issued a fatwa (religious decree) in 2003 declaring the development, production, and use of nuclear weapons to be against Islamic principles. The fatwa emphasizes the belief that such weapons are contrary to ethical and humanitarian values, and it reflects Iran's stance on the perceived legitimacy of possessing nuclear capabilities for defensive purposes while renouncing nuclear armament.

The term "21st-century Taiwanese physicists" generally refers to physicists from Taiwan who have made significant contributions to the field of physics in the 21st century. Taiwan has a vibrant scientific community, and many researchers have gained international recognition for their work across various branches of physics, including condensed matter physics, particle physics, astrophysics, and materials science.

Angelita Castro-Kelly does not appear to be a widely recognized public figure or a subject of significant media coverage as of my last knowledge update in October 2023. It’s possible that she could be a private individual or a lesser-known figure in a specific field.

Hatice Altug is a prominent figure in the field of quantum optics and photonics. She is known for her contributions to various areas of research including quantum information science and the development of photonic devices. Altug's work often focuses on the interaction between light and matter at the nanoscale, which has implications for technologies such as quantum computing, sensing, and imaging.