Problem: Background: Thomas Jacob "Tommy" Hilfiger (born March 24, 1951) is an American fashion designer best known for founding the lifestyle brand Tommy Hilfiger Corporation in 1985. After starting his career by co-founding a chain of record stores in upstate New York in the 1970s, he began designing preppy sportswear for his own eponymous menswear line in the 1980s. The company later expanded into women's clothing and various luxury items such as perfumes, and went public in 1992. In 1997, Hilfiger published his first book, titled All American: A Style Book, and he has written several since, including Tommy Hilfiger through Assouline in 2010.
Context: After Tommy Hillfiger went through several iterations, in 1984 Hilfiger's first wife Susie Cirona became pregnant with their first child. Searching for more stability, Hilfiger was relieved to be offered a design position with Calvin Klein. However, after he accepted the Calvin Klein position but before he had begun working, he was approached by businessman Mohan Murjani, to pursue his goal of designing and heading a men's sportswear line. Murjani backed the necessary investment for Hilfiger to establish his own brand. Later Hilfiger oversaw the design of the Coca-Cola clothing line for Murjani.  "[Waiting to form my own eponymous line] came from a desire to create something that wasn't out there already. I was really in tune with the market--I knew what existed, and I wanted this to be different. Maybe it's the small-town boy in me, but I've always loved the prep school look, traditional Ivy League, and the clothes that sailors and jocks wear. I wanted to take these familiar old things and give them a more laid-back attitude, to make them modern and cool....[with Tommy Hilfiger Corporation in 1985], finally, I felt like I was doing work that felt natural, that felt good. The brand we were building felt so honest, so true to who I am, that it didn't feel like a struggle at all."  In 1985, he founded the Tommy Hilfiger Corporation with support from The Murjani Group. The new clothing line made its debut with a high-profile marketing campaign, for example setting up a large billboard in Times Square designed by George Lois. Hilfiger left Murjani International in 1989, with Silas Chou instead providing financial backing to the Hilfiger brand, and former executives of Ralph Lauren brought on board as executives of the newly formed company Tommy Hilfiger, Inc. The Tommy Hilfiger Corporation went public in 1992, introducing Hilfiger's signature menswear collection. Hilfiger was named Menswear Designer of the Year by the Council of Fashion Designers of America in 1995. After licensing Pepe Jeans USA in 1995, in 1996, Tommy Hilfiger Inc. began distributing women's clothing. By the end of the next year Hilfiger had opened his first store in Beverly Hills, which was followed by a store in London in 1998. Hilfiger was serving as the company's co-chairman by 1997, and that year he published his first book, titled All American: A Style Book.
Question: Did Tommy work with any other designers?
Answer: for example setting up a large billboard in Times Square designed by George Lois.

Problem: Background: Slotin was the first of three children born to Israel and Sonia Slotin, Yiddish-speaking refugees who had fled the pogroms of Russia to Winnipeg, Manitoba. He grew up in the North End neighborhood of Winnipeg, an area with a large concentration of Eastern European immigrants. From his early days at Machray Elementary School through his teenage years at St. John's High School, Slotin was academically exceptional. His younger brother, Sam, later remarked that his brother "had an extreme intensity that enabled him to study long hours."
Context: The radiation doses received in these two accidents are not known with any semblance of accuracy. A large part of the dose was due to neutron radiation, which could not be measured by dosimetry equipment of the day. The available equipment, film badges, were not worn by personnel during the accident, and badges that were supposed to be planted under tables in case of disasters like these were not found. Disaster badges hung on the walls did provide some useful data about gamma radiation.  A "tentative" estimate of the doses involved was made in 1948, based on dozens of assumptions, some of which are now known to be grossly incorrect. In the absence of personal dosimetry badges, the study authors relied on measurements of sodium activation in the victims' blood and urine samples as their primary source of data. This activation would have been caused by neutron radiation, but they converted all doses to equivalent doses of gamma or X-ray radiation. They concluded that Daghlian and Slotin had probably received doses equivalent to 290 and 880 rem (respectively) of gamma rays. Minimum and maximum estimates varied from about 50% to 200% of these values. The authors also calculated doses equivalent to a mix of soft 80 keV X-rays and gamma rays, which they believed gave a more realistic picture of the exposure than the gamma equivalent. In this model the equivalent X-ray doses were much higher, but would be concentrated in the tissues facing the source, whereas the gamma component penetrated the whole body. Slotin's equivalent dose was estimated to be 1930 R (roentgen) of X-ray with 114 R of gamma, while Daghlian's equivalent dose was estimated to be 480 R of X-ray with 110 R of gamma. Five hundred rem is usually a fatal dose for humans.  In modern times dosimetry is done very differently. Equivalent doses would not be reported in roentgen; they would be calculated with different weighting factors, and they are not considered as relevant to acute radiation syndrome as absorbed doses. Recent documents have made various interpretations of Slotin's dose, ranging from 287 rad to 21 sievert. Based on citations and supporting reasoning, the most reliable estimate may be a 1978 Los Alamos memo which suggested 10 Gy(n) + 1.14 Gy(g) for Slotin and 2 Gy(n) + 1.1 Gy(g) for Daghlian. These doses are consistent with the symptoms they experienced.
Question: Anything else pertinent to the dosage?
Answer:
A "tentative" estimate of the doses involved was made in 1948, based on dozens of assumptions, some of which are now known to be grossly incorrect.