Results 21 to 30 of about 307 (133)
Interdisciplinary Materials, EarlyView.Vibrations in matter, from spider webs to molecules, water to flames, share a grammar with music. We propose that creativity emerges when constraints force expansion beyond existing possibilities. Selective imperfection restores balance, enabling invention.
Markus J. Buehler
wiley +1 more source
Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.Abstract Purpose Multiligament knee injuries (MLKIs) involving the medial collateral ligament (MCL) present unique challenges in surgical management and postoperative rehabilitation. This systematic review and meta‐analysis aimed to evaluate postoperative patient‐reported outcomes in patients with MCL‐involved MLKIs, with a minimum follow‐up of 2 years.
Collin Donald Roy Hunter +6 more
wiley +1 more source
, 1998 62 pages. Eighth and last in a series beginning with math.MG/9811071. Includes an index of terminology and notation for the entire series. The source package of the first version includes the source code of the software used in the proof.
openaire +2 more sources
Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.Abstract Purpose Posterolateral tibial plateau fractures (PLTFs) have been increasingly studied due to their association with soft tissue injuries around the knee. This prospective study aimed to determine whether the presence of PLTFs is associated with soft tissue injuries around the knee and correlates with an increased preoperative quantitative ...
Lukas Willinger +5 more
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Networks, EarlyView.ABSTRACT In this work, we introduce and study the p$$ p $$‐α$$ \alpha $$‐closest‐center problem (pα$$ p\alpha $$CCP), which is a generalization of the p$$ p $$‐second‐center problem, a recently emerged variant of the classical (discrete) p‐center problem.
Elisabeth Gaar +2 more
wiley +1 more source
Journal of Polymer Science, EarlyView.This study presents a fast and accurate calculation tool to predict conveying of polymer melts in single‐screw extruders. Integrating generalized sub‐models into network theory allows to represent the complex screw shapes and material behavior more realistically. Tests on an industrial extruder show close agreement with experiments, outperforming older
Daniel Herzog +3 more
wiley +1 more source
On the honeycomb conjecture and the Kepler problem
, 2009 This paper views the honeycomb conjecture and the Kepler problem essentially as extreme value problems and solves them by partitioning 2-space and 3-space into building blocks and determining those blocks that have the universal extreme values that one needs. More precisely, we proved two results. First, we proved that the regular hexagons are the only
Song, Fu-Gao, Austin, Francis
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The hard-core model on $\mathbb{Z}^3$ and Kepler's conjecture
, 2023 We study the hard-core model of statistical mechanics on a unit cubic lattice $\mathbb{Z}^3$, which is intrinsically related to the sphere-packing problem for spheres with centers in $\mathbb{Z}^3$. The model is defined by the sphere diameter $D>0$ which is interpreted as a Euclidean exclusion distance between point particles located at spheres ...
Mazel, A., Stuhl, I., Suhov, Y.
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Sustainable Development, EarlyView.ABSTRACT Electric utilities are expected to implement measures to improve their performance in all three dimensions of sustainable development—environmental, social, and economic. While several studies have investigated the environmental dimension, measures related to the social pillar have hardly been researched to date.
Shekerta Aliu +2 more
wiley +1 more source
Annals of Public and Cooperative Economics, EarlyView.Abstract The COVID‐19 pandemic has severely impacted the external environment of social service non‐profit organizations (NPOs), resulting in diverse management challenges. Our study investigates how social service NPOs in Austria experienced these challenges and how they developed internal coping mechanisms.
Birgit Grüb‐Martin +2 more
wiley +1 more source