Výsledky vyhledávání - "Matthias Lenz"

Akademický článek

Ureteral calculi in octogenarians and nonagenarians: Contemporary in-hospital management-A joint study by the endourological section of the Austrian Association of Urology.

Autor: Martin Drerup, Mehmet Özsoy, Clemens Wehrberger, Matthias Lenz, Christian Ramesmayer, Philipp Stolzlechner, Johannes Zanier, C E Falkensammer, Ivan Handjev, Andreas Wasserscheid, Stephan Seklehner

Publikováno v: PLoS ONE, Vol 18, Iss 1, p e0280140 (2023)

AimTo assess contemporary in-hospital management of octogenarians and nonagenarians with ureteral calculi.Materials and methodsReview of patients aged ≥80 years hospitalized due to ureteral calculi. Data was extracted from eight Austrian centers of

Externí odkaz: https://doaj.org/article/90fe3290755b472a80a0f69ea1f3c95a

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Akademický článek

A low-cost fluorescence reader for in vitro transcription and nucleic acid detection with Cas13a.

Autor: Florian Katzmeier, Lukas Aufinger, Aurore Dupin, Jorge Quintero, Matthias Lenz, Ludwig Bauer, Sven Klumpe, Dawafuti Sherpa, Benedikt Dürr, Maximilian Honemann, Igor Styazhkin, Friedrich C Simmel, Michael Heymann

Publikováno v: PLoS ONE, Vol 14, Iss 12, p e0220091 (2019)

Point-of-care testing (POCT) in low-resource settings requires tools that can operate independently of typical laboratory infrastructure. Due to its favorable signal-to-background ratio, a wide variety of biomedical tests utilize fluorescence as a re

Externí odkaz: https://doaj.org/article/298bfe3ccbbc47b69cb02d1334f6b578

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Akademický článek

Splines, lattice points, and (arithmetic) matroids

Autor: Matthias Lenz

Publikováno v: Discrete Mathematics & Theoretical Computer Science, Vol DMTCS Proceedings vol. AT,..., Iss Proceedings (2014)

Let $X$ be a $(d \times N)$-matrix. We consider the variable polytope $\Pi_X(u) = \left\{ w \geq 0 : Xw = u \right\}$. It is known that the function $T_X$ that assigns to a parameter $u \in \mathbb{R}^N$ the volume of the polytope $\Pi_X(u)$ is piece

Externí odkaz: https://doaj.org/article/dca9d46c3bfe4a218e7e472f7fbd3037

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Akademický článek

Interpolation, box splines, and lattice points in zonotopes

Autor: Matthias Lenz

Publikováno v: Discrete Mathematics & Theoretical Computer Science, Vol DMTCS Proceedings vol. AS,..., Iss Proceedings (2013)

Given a finite list of vectors $X \subseteq \mathbb{R}^d$, one can define the box spline $B_X$. Box splines are piecewise polynomial functions that are used in approximation theory. They are also interesting from a combinatorial point of view and man

Externí odkaz: https://doaj.org/article/1a4c666080b440f4a91dc45e6e6556de

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Akademický článek

Hierarchical Zonotopal Power Ideals

Autor: Matthias Lenz

Publikováno v: Discrete Mathematics & Theoretical Computer Science, Vol DMTCS Proceedings vol. AO,..., Iss Proceedings (2011)

Zonotopal algebra deals with ideals and vector spaces of polynomials that are related to several combinatorial and geometric structures defined by a finite sequence of vectors. Given such a sequence $X$, an integer $k \geq -1$ and an upper set in the

Externí odkaz: https://doaj.org/article/0bd28217a0fe4c5b98ea5cccc069471e

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