Results 51 to 60 of about 539,900 (289)

(Co)Homology of crossed modules [PDF]

open access: yes, 2002
This paper begins with the observation that the category of crossed modules is tripleable over the category of sets, so that it is an algebraic category.
Grandjeán, A.R.-   +5 more
core   +1 more source

Crossed Modules

open access: yesIrish Mathematical Society Bulletin, 1988
Crossed modules provide a very useful tool in algebraic topology, algebraic K-theory, group cohomology and combinatorial group theory. They were introduced almost 40 years ago by J. H. C. Whitehead in his work on combinatorial homotopy theory. Given this illustrious start and their proven potential, it is strange that they are not very well known to ...
openaire   +2 more sources

Crossed modules of racks [PDF]

open access: yes, 2014
We generalize the notion of a crossed module of groups to that of a crossed module of racks. We investigate the relation to categorified racks, namely strict 2-racks, and trunk-like objects in the category of racks, generalizing the relation between ...
Crans, Alissa S.   +3 more
core   +1 more source

Genetic background influences the 5XFAD Alzheimer's disease mouse model brain proteome

open access: yesFrontiers in Aging Neuroscience, 2023
There is an urgent need to improve the translational validity of Alzheimer's disease (AD) mouse models. Introducing genetic background diversity in AD mouse models has been proposed as a way to increase validity and enable the discovery of previously ...
Cheyenne D. Hurst   +15 more
doaj   +1 more source

The category of generalized crossed modules [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2019
In the definition of a crossed module $(T,G,rho)$, the actions of the group $T$ and $G$ on themselves are given by conjugation. In this paper, we consider these actions to be arbitrary and thus generalize the concept of ordinary crossed module. Therefore,
Mahdieh Yavari, Alireza Salemkar
doaj  

A Fibration Application for Crossed Squares

open access: yesCumhuriyet Science Journal, 2018
In this work we showed that the category of crossed squares of algebrashas a left adjoint pair, and this category is fibred over the category ofcornered crossed modules.
Koray Yılmaz
doaj   +1 more source

Force-induced unfolding of fibronectin in the extracellular matrix of living cells. [PDF]

open access: yesPLoS Biology, 2007
Whether mechanically unfolded fibronectin (Fn) is present within native extracellular matrix fibrils is controversial. Fn extensibility under the influence of cell traction forces has been proposed to originate either from the force-induced lengthening ...
Michael L Smith   +6 more
doaj   +1 more source

Universal enveloping crossed module of Leibniz crossed modules and representations

open access: yesJournal of Physics: Conference Series, 2016
The universal enveloping algebra functor UL: Lb → Alg, defined by Loday and Pirashvili [1], is extended to crossed modules. Then we construct an isomorphism between the category of representations of a Leibniz crossed module and the category of left modules over its universal enveloping crossed module of algebras.
Rafael F. Casado   +2 more
openaire   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

MCCRNet: A Multi-Level Change Contextual Refinement Network for Remote Sensing Image Change Detection

open access: yesISPRS International Journal of Geo-Information, 2021
Change detection based on bi-temporal remote sensing images has made significant progress in recent years, aiming to identify the changed and unchanged pixels between a registered pair of images. However, most learning-based change detection methods only
Qingtian Ke, Peng Zhang
doaj   +1 more source

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