Results 101 to 110 of about 62,074 (317)
Changes in Atlantic major hurricane frequency since the late-19th century. [PDF]
Nat Commun, 2021 Vecchi GA +5 more
europepmc +1 more source
The Prouhet-Tarry-Escott problem for Gaussian integers [PDF]
arXiv, 2010 Given natural numbers $n$ and $k$, with $n>k$, the Prouhet-Tarry-Escott (PTE) problem asks for distinct subsets of $\Z$, say $X=\{x_1,...,x_n\}$ and $Y=\{y_1,...,y_n\}$, such that \[x_1^i+...+x_n^i=y_1^i+...+y_n^i\] for $i=1,...,k$. Many partial solutions to this problem were found in the late 19th century and early 20th century.
arxiv
The Anatomical Record, EarlyView.Abstract The three mammalian auditory ossicles enhance sound transmission from the tympanic membrane to the inner ear. The anterior anchoring of the malleus is one of the key characters for functional classification of the auditory ossicles. Previous studies revealed a medial outgrowth of the mallear anterior process, the processus internus ...
Franziska Fritzsche +2 more
wiley +1 more source
Variability of jaw muscles in Tunisian street dogs and adaptation to skull shape
The Anatomical Record, EarlyView.Abstract The impact of artificial selection on the masticatory apparatus of dogs has been poorly studied, and comparative data with dogs subjected to more natural constraints are lacking. This study explores the jaw musculature of Tunisian street dogs, which are largely free from the influence of breed‐specific selection.
Colline Brassard +3 more
wiley +1 more source
Sediment supply control on morphodynamic processes in gravel‐bed river widenings
Earth Surface Processes and Landforms, Volume 47, Issue 15, Page 3415-3434, December 2022., 2022 Mobile‐bed laboratory experiments combined with two‐dimensional hydrodynamic numerical simulations showed that sediment supply is a key driver of morphodynamic activity in reach‐scale dynamic river widenings. Sediment supply roughly balanced with the channel's transport capacity led to active channel widening and continued patchy sediment relocation ...
Cristina Rachelly +3 more
wiley +1 more source
Transitive Lie algebras of vector fields---an overview [PDF]
Qualitative Theory of Dynamical Systems 11(1), 39-60, 2012, 2011 This overview paper is intended as a quick introduction to Lie algebras of vector fields. Originally introduced in the late 19th century by Sophus Lie to capture symmetries of ordinary differential equations, these algebras, or infinitesimal groups, are a recurring theme in 20th-century research on Lie algebras.
arxiv
Snake and Moon ‘Right Way Marriage’ Stories on Stone and Bark
Archaeology in Oceania, EarlyView.ABSTRACT In northwest Australia, boab trees hold significant cultural values for First Nations people. Their leaves, bark, roots and nuts are important as traditional resources for food, medicine, fibre, water and shade and serve as reference points in the landscape. Some of the tree trunks are inscribed with images and symbols which tell of events and
Jane Balme +7 more
wiley +1 more source
Biogeomorphic recovery of a river reach affected by mining
Earth Surface Processes and Landforms, Volume 47, Issue 15, Page 3497-3514, December 2022., 2022 The Grogwynion reach of the River Ystwyth,Wales, affected by mining in the 19th and 20th centuries, has shown a progressive reversion to a sinuous single‐channel planform since 2001 from an active braided pattern. A critical factor has been a change in the extent and type of riparian vegetation occurring within the active zone of the river due to the ...
Martin Dawson +2 more
wiley +1 more source
Disciplinary Cases of Filipino Teachers in the Late 19th Century
Social Science Diliman, 2014 This paper discusses a number of archival records of disciplinary cases involving Filipino teachers in the 19th century. These cases were handled by the Spanish Superior Commission on Primary Education.
Grace Liza Y. Concepcion
doaj
A Needle in a Haystack: Landscape Survey and Archaeological Detection Experiments in Apalachee Bay
Archaeological Prospection, EarlyView.ABSTRACT This paper presents the results of a pilot landscape‐scale seismic survey undertaken in Apalachee Bay, Florida, across a submerged landscape that contains dozens of Pre‐Contact sites. In addition to the goals of improving the geophysical and remote sensing ground model for this submerged landscape, the survey also sought to undertake the first
Simon Fitch, Jessica Cook Hale
wiley +1 more source