Publications by authors named "D R Sawicki"

Coarse geometry studies metric spaces on the large scale. The recently introduced notion of coarse entropy is a tool to study dynamics from the coarse point of view. We prove that all isometries of a given metric space have the same coarse entropy and that this value is a coarse invariant.

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The article presents the possibilities of using fiber-optic acceleration (FOC) sensors on products of rocket-space and aviation technology as part of information-measuring systems. A special measuring device has been developed for experimental confirmation of the main characteristics of the technical characteristics of the developed, two-coordinate fiber-optic acceleration sensors. The developed measuring setup for the experimental research of a two-coordinate fiber-optic acceleration sensor with two, cylindrical lenses fixed on two H-shaped elastic elements deflected under the influence of acceleration in two mutually perpendicular directions X and Y, intended for operation in harsh conditions of rocket and space technology.

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Background: The number of physician assistants (PAs) and advanced practice registered nurses (APRNs), together known as advanced practice providers (APPs), has risen dramatically. The goal is identifying characteristics of paid medical malpractice claims, in which APPs are defendants.

Methods: Retrospective cohort study using Harvard's malpractice insurer's national database.

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The purpose of the article is to check whether the acceleration signals recorded by a smartphone help identify a user's physical activity type. The experiments were performed using the application installed in a smartphone, which was located on the hip of a subject. Acceleration signals were recorded for five types of physical activities (running, standing, going up the stairs, going down the stairs, and walking) for four users.

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Sex workers are individuals who offer sexual services in exchange for compensation (i.e., money, goods, or other services).

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