The incommensurately modulated structure of a natural nepheline of composition K(0.54)Na(3.24)Ca(0.03)Al(3.84)Si(4.16)O(16) has been determined in superspace. The compound crystallizes in the trigonal centered superspace group X3(00γ)0 with γ = 0.2048 (10), X = (0, 0, 0, 0), (1/3, 2/3, 0, 2/3), (2/3, 1/3, 0, 1/3), a = 17.2889 (8) and c = 8.3622 (10) Å. The structure is characterized by a framew...

The history of the Center for Occupational Health (COH) at the National Institute of Public Health in Prague dates back to the early 1950s. The Center was established on January 1, 1952. The first director of the Institute was Prof. Jaroslav Teisinger, M.D., D.Sc. (1902–1985), the founding father of occupational medicine in former Czechoslovakia, and the head of the first Czech Department of Oc...

This Job Is ‘Getting Old:’ Measuring Changes in Job Opportunities Using Occupational Age Structure Highand low-wage occupations are expanding rapidly relative to middle-wage occupations in both the U.S. and the E.U. We study the reallocation of workers from middle-skill occupations towards the tails of the occupational skill distribution by analyzing changes in age structure within and across o...

As occupational therapists, we provide an essential service to society. We assist people to lead productive, healthful, and creative lives. We remind the greater culture that every human has inherent value and worth and deserves the caring attention necessary to flourish. We understand the central importance of meaningful occupation to the physical, mental, and spiritual well-heing of all peopl...

Occupational health practice in the military is challenging and also an important facet of the overall healthcare service delivery. This paper describes how it enhances the operational readiness of the Republic of Singapore Navy during peacetime and operations, the organisational framework of occupational health services and the foreseeable challenges.