Problems of Administration in Industrial Surgery

Noland, Lloyd

doi:10.1001/jama.1932.02740670003002

Cited by 2 publications

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“…This compatibility can be tested by various methods including the existence of a common characteristic T, transition(Ref. 6) and the depression of the melting point of the PVDF crystals(Ref. 7).…”

Section: Introductionmentioning

confidence: 99%

Phase separation studies on poly(vinylidene fluoride) and poly(methyl methacrylate) quenched blends

Martínez‐Salazar

Canalda

Vallejo

1994

Macromolecular Symposia

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A combined study by SAXS and DSC on quenched blends of PVDF and PMMA is presented. Attention is focused on the first stage of the phase separation process during annealing that is shown to be mainly determined by the diffusion of the PVDF molecules from the amorphous blend phase towards the crystals growth front. The experimental monomer diffusion constants at T > Tg are compared with those expected theoretically using the approximation of the fast model process and the WLF equation for the relaxation frequency of the monomer. The nature and composition of the crystal interphase are discussed in terms of the SAXS invariant for the whole system and the calorimetric data derived from the Tg transitions observed.

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Section: Introductionmentioning

confidence: 99%

Phase separation studies on poly(vinylidene fluoride) and poly(methyl methacrylate) quenched blends

Martínez‐Salazar

Canalda

Vallejo

1994

Macromolecular Symposia

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Train Wrecks to Typhoid Fever: The Development of Railroad Medicine Organizations, 1850 to World War I

Aldrich¹

2001

bhm

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From their beginning American railroads developed medical arrangements to care for the large number of workers and passengers they killed or injured. After the Civil War, both labor unrest and liability concerns led them to expand and formalize these arrangements, and three forms of organization arose. Western roads, facing an almost complete lack of medical facilities, developed employee-funded hospital organizations. In the east, companies created medical organizations under a salaried chief surgeon and contracted with local physicians to provide care. A third model, pioneered by the Baltimore & Ohio Railroad in the 1880s, devised a beneficial society that provided medical care and compensation for injured workers. Although these organizations involved both contract practice and group hospitalization, the AMA seems to have ignored them. In the 1880s railroad physicians developed their own organizations, including the National Association of Railway Surgeons, in which they discussed problems of professionalization and such medical matters as "railway spine." Concern with costs and labor turnover also led the carriers into preventive medicine. Some roads provided smallpox and typhoid vaccinations, campaigned against malaria, improved passenger-car sanitation, required physical examinations of their employees, and trained them in first aid. By World War I, railroad medical organizations provided care to nearly two million employees and employment to about 10 percent of all physicians.

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Problems of Administration in Industrial Surgery

Cited by 2 publications

References 0 publications

Phase separation studies on poly(vinylidene fluoride) and poly(methyl methacrylate) quenched blends

Phase separation studies on poly(vinylidene fluoride) and poly(methyl methacrylate) quenched blends

Train Wrecks to Typhoid Fever: The Development of Railroad Medicine Organizations, 1850 to World War I

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