Waterman Gymnasium Interior

E.W. Arnold, architect. Built 1894. Funded by a challenge grant of $20,000.00 by Joshua W. Waterman of Detroit with contributions from others, including students, and funding from the Regents. Addition completed in 1916. Demolished in 1977 to make room for the expansion of the adjacent Chemistry Building.

Model Mining and Efficient Verification of Software Product Lines

Software product line modeling aims at capturing a set of software products in an economic yet meaningful way. We introduce a class of variability models that capture the sharing between the software artifacts forming the products of a software product line (SPL) in a hierarchical fashion, in terms of commonalities and orthogonalities. Such models are useful when analyzing and verifying all products of an SPL, since they provide a scheme for divide-and-conquer-style decomposition of the analysis or verification problem at hand. We define an abstract class of SPLs for which variability models can be constructed that are optimal w.r.t. the chosen representation of sharing. We show how the constructed models can be fed into a previously developed algorithmic technique for compositional verification of control-flow temporal safety properties, so that the properties to be verified are iteratively decomposed into simpler ones over orthogonal parts of the SPL, and are not re-verified over the shared parts. We provide tool support for our technique, and evaluate our tool on a small but realistic SPL of cash desks.

Author Susan Brownmiller at home

General note: Title and date provided by Bettye Lane.

Women at work: nurse at monitoring station

Inscription: Verso: Women at work: miscellaneous occupations. Cardiac Intensive Care Unite, Douglas County Hospital, Alexandria, Minnesota.

Women at work: stockbrocker, E.F. Hutton.

Inscription: Verso: Women at work: miscellaneous occupations. Marilyn Male, stockbrocker, E.F. Hutton, New York.

Women at work: personnel director interviewing applicant.

Inscription: Verso: Women at work: miscellaneous occupations. Gail Lewis, personnel directior interviewing applicant, Hertz Corp.

Women at work: National Paraplegia Foundation

Inscription: Verso: Women at work: miscellaneous occupations. Handicapped secretary, Denise Figueroa, at the National Paraplegia Foundation, New York.

Fungal contamination in one hotel room: Does carpet coating in the floor enhance fungal contamination?

Study developed in order to know the carpet influence when used in the floor of a hotel room. Twelve air samples of 250L (six in a room with carpet and six more in a room with wood floor) were collected through an impaction method with a flow rate of 140 L/min onto malt extract agar (MEA) supplemented with chloramphenicol (0.05%), using the Millipore air Tester (Millipore), during cleaning activities. Outdoor sample was also performed to be used as a reference. Surface samples from floor and desks, taken at the same time, were collected by the swabbing method. to 7 days. Besides fungal contamination, we also assessed particulate matter contamination in both rooms during the same cleaning tasks. In the analyzed sur- faces, isolates belonging to Aspergillus fumigatus complex were the only fungi found in the carpeted room, whereas in the other room we found Penicllium sp. (63.6%) and Aspergillus sp. (13.6%) as the most frequent genera. In the case of particles the room with carpet obtained significant higher values for both metrics (PMC and PNC), showing that carpet may has influence on particles’ contamination of the room.