Results 1 to 10 of about 440,099 (344)

Statistics and dynamics of blockings with a point vortex model [PDF]

Tellus A: Dynamic Meteorology and Oceanography, 2018
We investigate a reduced point vortex model for statistical and dynamical analyses of atmospheric blocking phenomena. Thereby, we consider High-over-low and Omega blocking as relative equilibria of two and three point vortices. Under certain conditions, such point vortex systems move westward opposing the mean westerly flow and hence can become ...
Mirjam Hirt, Lisa Schielicke, Annette Müller, Peter Névir   +3 more
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Statistics of Random Permutations and the Cryptanalysis of Periodic Block Ciphers [PDF]

Cryptologia, 2012
A block cipher is intended to be computationally indistinguishable from a random permutation of appropriate domain and range. But what are the properties of a random permutation? By the aid of exponential and ordinary generating functions, we derive a series of collolaries of interest to the cryptographic community.
Gregory V. Bard, Shaun V. Ault, Nicolas T. Courtois   +2 more
openalex   +5 more sources

Statistics of Blocks in k-Divisible Non-Crossing Partitions [PDF]

The Electronic Journal of Combinatorics, 2012
We derive a formula for the expected number of blocks of a given size from a non-crossing partition chosen uniformly at random. Moreover, we refine this result subject to the restriction of having a number of blocks given.Furthermore, we generalize to $k$-divisible partitions.
Octavio Arizmendi
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Factors determining sports results in elite national volleyball teams between 2004 and 2016 [PDF]

Biology of Sport
The main objective of this study was to identify the game-related statistics determining the sports results in volleyball between 2004 and 2016. In the study, the matches of six men’s and six women’s national volleyball teams competing in the most ...
Kazimierz Mikołajec, Barbara Nowak, Damian Banyś, Michał Krzysztofik, Dariusz Tadeusz Skalski, Alicja Markiel, Adam Maszczyk   +6 more
doaj   +2 more sources

$K$ block set partition patterns and statistics

, 2020
A set partition $ $ of $[n]=\{1,\cdots ,n\}$ contains another set partition $ $ if a standardized restriction of $ $ to a subset $S\subseteq[n]$ is equivalent to $ $. Otherwise, $ $ avoids $ $. Sagan and Goyt have determined the cardinality of the avoidance classes for all sets of patterns on partitions of $[3]$.
Amrita Acharyya, Robinson Paul Czajkowski, Allen R. Williams   +2 more
openalex   +4 more sources

Shared genetic risk and causal associations between Post-traumatic stress disorder and migraine with antithrombotic agents and other medications [PDF]

Neurobiology of Stress
Post-traumatic stress disorder (PTSD) is a psychiatric disorder that frequently co-occurs with pain disorders including migraine. There are proposed biological, genetic and environmental factors associated with both PTSD and migraine suggesting shared ...
Charlotte K. Bainomugisa, Dagmar Bruenig, Heidi G. Sutherland, Lyn R. Griffiths, Dale R. Nyholt, Divya Mehta   +5 more
doaj   +2 more sources

Forward and backward blocking in statistical learning [PDF]

PLOS ONE, 2022
AbstractPrediction errors have a prominent role in many forms of learning. For example, in reinforcement learning, agents learn by updating the association between states and outcomes as a function of the prediction error elicited by the event. One paradigm often used to study error-driven learning is blocking.
İlayda Nazlı, Ambra Ferrari, Christoph Huber-Huber, Floris P. de Lange   +3 more
openaire   +4 more sources

Possible Concussions Related to a Direct Head Kick Among College Taekwondo Athletes [PDF]

운동과학, 2022
PURPOSE Executing a head kick (HK) in sparring-taekwondo (S-TKD) is a common, legal move and is promoted by competition rules by awarding higher points.
Hye-Jin Kim, Jae-Ok Koh
doaj   +1 more source

Arterial covered stent used in resection of complex carotid body tumor: a single-center retrospective study [PDF]

Waike lilun yu shijian, 2022
Objective To evaluate arterial covered stent used in the resection of complex carotid body tumor (CBT) and postoperative adverse events. Methods Twelve patients with CBT Shamblin type Ⅱ 3 cases and type Ⅲ 9 cases from 2018 to 2020 who ...
YANG Shaofei, YANG Guanghua, PU Jiaxi, LU Minhao, ZHAO Zhiqing, ZHAO Bin
doaj   +1 more source

The statistical building blocks of animal movement simulations [PDF]

Movement Ecology, 2023
AbstractAnimal movement plays a key role in many ecological processes and has a direct influence on an individual’s fitness at several scales of analysis (i.e., next-step, subdiel, day-by-day, seasonal). This highlights the need to dissect movement behavior at different spatio-temporal scales and develop hierarchical movement tools for generating ...
Wayne M Getz, Richard Salter, Varun Sethi, Shlomo Cain, Orr Spiegel, Sivan Toledo   +5 more
openaire   +4 more sources