Mathematical institutes are specialized research organizations or academic institutions focused on the study and advancement of mathematics. These institutes often conduct research, provide resources and support for mathematicians, promote mathematical education, and foster collaboration among researchers and practitioners. They may also host workshops, seminars, and conferences, and publish research findings in mathematical journals.

James Hansen is a prominent American climate scientist and an influential figure in the field of climate change research. Born on March 29, 1941, he is best known for his work on climate modeling and his early advocacy for the issue of anthropogenic (human-caused) global warming. Hansen gained widespread recognition after he testified before the U.S. Congress in 1988, where he warned about the potential impacts of climate change and urged immediate action to address it.

James Jurin was a notable figure in the field of medicine and science during the 18th century. He is best known for his work in the study of blood circulation and his contributions to the field of meteorology. One of his most significant contributions was in relation to the understanding of the principles of blood pressure and its measurement, which laid the groundwork for future developments in physiology.

It seems there might be a typo in your question, as "James Marrow" doesn't refer to a widely recognized figure or concept in popular culture, history, science, or other fields as of my last knowledge update in October 2023.

James R. Von Ehr II is an American entrepreneur, engineer, and businessman known for his work in the field of technology and venture capital. He is the founder of several companies, including Zyvex Labs, which is focused on nanotechnology and advanced materials. Von Ehr is recognized for his contributions to the development and commercialization of nanotechnology applications, and he has been involved in various initiatives related to science and technology. His work has often emphasized the potential of nanotechnology to transform industries and improve products.

As of my last knowledge update in October 2021, there is no widely recognized figure or entity known specifically as "James Sauls." It's possible that it could refer to a private individual, a lesser-known figure, or it may have gained prominence after my last update.

James Watson is an American molecular biologist, geneticist, and zoologist best known for co-discovering the double helix structure of DNA, along with Francis Crick and Rosalind Franklin's data. Their groundbreaking work in the early 1950s laid the foundation for modern genetics and has had a profound impact on the fields of biology and medicine. Watson was born on April 6, 1920, in Chicago, Illinois. He earned his Ph.D.

As of my last knowledge update in October 2021, I do not have any information regarding a person named Janice Musfeldt. It's possible that she could be a private individual or a figure not widely covered in the media or public records. If you have more context or specific details about her, I might be able to assist you better.

János Pintz is a prominent Hungarian mathematician known for his contributions to number theory, combinatorics, and related areas. He has worked on various problems, including those involving prime numbers and Erdős-type conjectures. Pintz is also noted for his collaborations with other mathematicians and has authored several papers that advance the field.

Jan van Deemter is a Dutch chemist known for his significant contributions to the field of chromatography, particularly in the context of analytical chemistry. He is best recognized for formulating the "Van Deemter equation," which describes the relationship between the efficiency of a chromatographic separation and various factors affecting that efficiency, such as the linear velocity of the mobile phase and the characteristics of the stationary phase.

Japanese amber, known as "Kanto amber" or "Katsuura amber," is a type of amber found primarily in Japan, particularly in the Kanto region and parts of the Chiba Prefecture. Amber is fossilized tree resin that has been preserved for millions of years, often showcasing a variety of inclusions such as insects, plant material, and air bubbles. Japanese amber is typically characterized by its rich colors, ranging from yellow to orange and brown.

Jayanta Kumar Ghosh may refer to various individuals depending on the context, as it is a relatively common name in certain regions, particularly in India. Without additional context, it's difficult to pinpoint exactly who you are referring to.

As of my last knowledge update in October 2021, there is no widely recognized entity or individual known specifically as "Jean Krisch." It's possible that they could be a private individual, a lesser-known figure, or a developing topic that emerged after my last update.

Jean-Paul Poirier is a name that may refer to several individuals, but without more context, it's difficult to pinpoint exactly which person you're asking about. If you're referring to a specific Jean-Paul Poirier who is notable in a particular field—such as academia, art, business, or sports—please provide more details for clarification. Otherwise, it might be a name that is not widely recognized in public domains.