Results 71 to 80 of about 8,493,253 (253)

The Riemann-Hurwitz formula [PDF]

open access: yes, 2016
Let ϕ : S → T be a surjective holomorphic map between compact Riemann surfaces. There is a formula relating the various invariants involved: the genus of S, the genus of T, the degree of ϕ and the amount of ramification. Riemann used this formula in case
Fundamental mathematics   +2 more
core   +1 more source

Extrapolating an Euler class [PDF]

open access: yes, 2015
Let R be a noetherian ring of dimension d and let n be an integer so that n≤d≤2n-3. Let (a1,..., an+1) be a unimodular row so that the ideal J=(a1,..., an) has height n.
Fundamental mathematics   +2 more
core   +1 more source

Imagination as a fundamental function of the hippocampus. [PDF]

open access: yesPhilos Trans R Soc Lond B Biol Sci, 2022
Comrie AE, Frank LM, Kay K.
europepmc   +1 more source

Association Between Individualized Education for Kidney Replacement Therapy Modality Selection and Peritoneal Dialysis Initiation: A Cross‐Sectional Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) is an established home‐based kidney replacement therapy (KRT), but its uptake remains low in Japan. We evaluated whether individualized education in a dedicated outpatient clinic was associated with the initiation of PD.
Yasuko Ito   +7 more
wiley   +1 more source

Frequency Equations of Lateral and Transversal Vibrations of Steps Bars and Shafts

open access: yesМеханика машин, механизмов и материалов, 2013
In actual machine building corresponding with increase rotation velocity and transmission loading in driving assembles questions calculating of vibrations characteristic of bars and shafts are very important. Inaccuracy or simplest dynamic model leads to
J. Jaroszewicz , K. Zhur
doaj  

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Hamiltonian group actions on exact symplectic manifolds with proper momentum maps are standard. [PDF]

open access: yes, 2018
We give a complete characterization of Hamiltonian actions of compact Lie groups on exact symplectic manifolds with proper momentum maps. We deduce that every Hamiltonian action of a compact Lie group on a contractible symplectic manifold with a proper ...
Karshon, Yael   +3 more
core   +2 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Examples and counter-examples of log-symplectic manifolds [PDF]

open access: yes, 2017
We study topological properties of log-symplectic structures and produce examples of compact manifolds with such structures. Notably, we show that several symplectic manifolds do not admit bona fide log-symplectic structures and several bona fide log ...
Cavalcanti, Gil R.   +2 more
core   +1 more source

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