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Related Concept Videos

Drift Velocity01:19

Drift Velocity

The high speed of electrical signals results from the fact that the force between charges acts rapidly at a distance. Thus, when a free charge is forced into a wire, the incoming charge pushes other charges ahead due to the repulsive force between like charges. These moving charges move the charges farther down the line. The density of charge in a system cannot easily be increased, so the signal is passed on rapidly. The resulting electrical shock wave moves through the system at nearly the...
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Latitudes and departures are essential concepts in surveying, providing a systematic way to analyze the projections of traverse lines. These projections allow surveyors to interpret a line's north-south and east-west components, which are crucial for precisely calculating areas, bearings, and lengths. Latitude is the north-south projection of a line, calculated as the product of the line's length and the cosine of its bearing. Departure, conversely, is the east-west projection obtained by...
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Drift Current:
The drift of charge carriers is started by an external electric field (E). Charged particles, such as electrons and holes, experience an acceleration between collisions with lattice atoms. For electrons, this results in a drift velocity (vd) given by:
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An interesting force in everyday life is the force of drag on an object when it is moving in a fluid. Like friction, the drag force always opposes the motion of an object. Unlike simple friction, the drag force is proportional to some function of the velocity of the object in that fluid. This functionality is complicated and depends upon the shape of the object, its size, its velocity, and the fluid it is in. For most large objects, such as cyclists, cars, and baseballs, that are not moving too...
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[DHR--ready for take-off].

B Haschberger1, J Hesse, M Heiden

  • 1Paul-Ehrlich-Institut, Bundesamt für Sera und Impfstoffe, Langen. hasbi@pei.de

Hamostaseologie
|September 19, 2009
PubMed
Summary
This summary is machine-generated.

A new data handling system (DHR) uses an "Intermediate" module to pseudonymize patient data for cancer registries, enhancing privacy and security in collaborations between research institutes and patient organizations.

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Area of Science:

  • Oncology
  • Data Science
  • Public Health

Context:

  • Established collaboration between Paul-Ehrlich-Institute (PEI), GTH, DHG, and IGH since 2007.
  • University of Munich initiated data enrollment in December 2008.
  • Development of a novel data handling system (DHR) for epidemiological and clinical cancer registries.

Purpose:

  • To introduce a secure and privacy-preserving method for handling sensitive patient data in cancer registries.
  • To implement a pseudonymization process that protects patient confidentiality while enabling data analysis.

Summary:

  • The DHR system employs an independent software module called "Intermediate" to process personal data.
  • The Intermediate module, running on a separate server with limited memory, receives data via the internet, calculates pseudonyms, and forwards them to the database.
  • This approach avoids direct access to personal data by the collaborating institutions, with the Intermediate module being reset upon each start and isolated from the PEI.

Impact:

  • Enhances data security and patient privacy in cancer registry collaborations.
  • Facilitates reliable data collection and analysis for epidemiological and clinical cancer research.
  • Establishes a robust framework for third-party involvement in secure data pseudonymization.