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Biomedical subjects

M Roemer

Publications and source records attributed to M Roemer.

7 recordsLinked to original sources
PubMed2002

Microactuators based on conducting polymers.

In this contribution we report the use of polyaniline and polypyrrole for miniaturized actuators fabricated by microstructural and electrochemical technologies. The potential necessary to drive the actuator is typically less than 1 V, i.e. 2-3 orders of magnitude lower than that necessary for the widespread piezoelectric actuator devices. This low voltage is imperative for future application of actuators of micrometer dimensions. The volume variation of polymers substantially exceeds that of piezoelectric materials. Different contributions to the actuator characteristics are discussed and evaluated semi-quantitatively.

Journal Article↗
PubMed2001

Invasive fungal sinusitis and meningitis due to Arthrographis kalrae in a patient with AIDS.

We report the first described case of Arthrographis kalrae pansinusitis and meningitis in a patient with AIDS. The patient was initially diagnosed with Arthrographis kalrae pansinusitis by endoscopic biopsy and culture. The patient was treated with itraconazole for approximately 5 months and then died secondary to Pneumocytis carinii pneumonia. Postmortem examination revealed invasive fungal sinusitis that involved the sphenoid sinus and that extended through the cribiform plate into the inferior surfaces of the bilateral frontal lobes. There was also an associated fungal meningitis and vasculitis with fungal thrombosis and multiple recent infarcts that involved the frontal lobes, right caudate nucleus, and putamen. Post mortem cultures were positive for A. kalrae.

AIDS-Related Opportunistic Infections↗
PubMed1991

Good health at a modest price: the fruit of primary care.

Particularly in respect of life expectancy, Norway's historical bias towards primary care has produced similar results to those of Sweden, where hospital treatment has traditionally been more prominent. The per capita cost of health care, however, has been significantly lower in Norway than in Sweden.

Health Expenditures↗