Results 31 to 40 of about 1,098,643 (378)

Polyelectrolyte bundles [PDF]

open access: yesJournal of Physics: Condensed Matter, 2004
10 pages, 8 ...
Limbach, H., Sayar, M., Holm, C.
openaire   +3 more sources

Differential geometry of collective models

open access: yesAIMS Mathematics, 2019
The classical astrophysical theory of Riemann ellipsoids and the quantum nuclear theory of Bohr and Mottelson share a common mathematical foundation in terms of the differential geometry of a principal bundle ${\cal P}$ and its associated vector bundle E,
George Rosensteel
doaj   +1 more source

Groupoid Actions on Fractafolds [PDF]

open access: yes, 2014
We define a bundle over a totally disconnected set such that each fiber is homeomorphic to a fractal blowup. We prove that there is a natural action of a Renault-Deaconu groupoid on our fractafold bundle and that the resulting action groupoid is a ...
Ionescu, Marius, Kumjian, Alex
core   +2 more sources

Normal-Bundle Bootstrap

open access: yesSIAM Journal on Mathematics of Data Science, 2021
Probabilistic models of data sets often exhibit salient geometric structure. Such a phenomenon is summed up in the manifold distribution hypothesis, and can be exploited in probabilistic learning. Here we present normal-bundle bootstrap (NBB), a method that generates new data which preserve the geometric structure of a given data set.
Ruda Zhang, Roger Ghanem
openaire   +2 more sources

Sepsis: implication for nursing

open access: yesItalian Journal of Medicine, 2016
Sepsis is a serious health problem that is off worldwide interest; it is associated with a high mortality rate despite continuing improvements in infection management and the awareness of population is still poor despite its importance.
Fabio Bertoncini   +2 more
doaj   +1 more source

Uniton bundles [PDF]

open access: yesCommunications in Analysis and Geometry, 1995
We show that a twistor construction of Hitchin and Ward can be adapted to study unitons (harmonic spheres in a unitary group). Specifically, we show that unitons are equivalent to holomorphic bundles with extra structure over a rational ruled surface with energy given by Chern class.
openaire   +3 more sources

Bundles reduce anastomosis leak in patients undergoing elective colorectal surgery. A propensity score-matched study

open access: yesFrontiers in Surgery, 2023
Backgroundanastomosis leak still being a handicap in colorectal surgery. Bowel mechanical preparation and oral antibiotics are not a practice recommended in many clinical practice guides.
M Baeza-Murcia   +13 more
doaj   +1 more source

Lifting geometric objects to the dual of the first jet bundle of a bundle fibred over R [PDF]

open access: yes, 2013
We study natural lifting operations from a bundle E over R to the dual bundle of its first-jet bundle. The main purpose is to define a complete lift of a type (1,1) tensor field on E and to understand all features of its construction.
Sarlet, Willy, Waeyaert, Goedele
core   +3 more sources

Trade-Offs, Synergies, and Driving Factors of Ecosystem Services in the Urban–Rural Fringe of Beijing at Multiple Scales

open access: yesLand
Urban–rural fringe areas are critical transition zones where ecological functions and human activities interact intensely, often leading to complex spatial patterns and trade-offs among ecosystem services (ESs).
Chang Wang   +6 more
doaj   +1 more source

Evaluation of an intervention program to prevent hospital-acquired catheter-associated urinary tract infections in an ICU in a rural Egypt hospital

open access: yesGMS Hygiene and Infection Control, 2014
[english] Aim: Catheter associated urinary tract infections (CAUTI) are the most common hospital-acquired infection in ICUs. The aim of this study was to estimate the effectiveness of an intervention program by implementing urinary catheter bundle ...
Amine, Amira Ezzat Khamis   +2 more
doaj   +1 more source

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