Results 51 to 60 of about 12,112,702 (317)

Fiber Strong Shape Theory for Topological Spaces [PDF]

open access: yes, 2017
In the paper we construct and develop a fiber strong shape theory for arbitrary spaces over fixed metrizable space $\Bo$. Our approach is based on the method of Marde\v{s}i\'{c}-Lisica and instead of resolutions, introduced by Marde\v{s}i\'{c}, their ...
Baladze, Vladimer, Tsinaridze, Ruslan
core   +2 more sources

A PRSZT Registry Analysis of Prognostic Factors Influencing Survival and Relapse Rates After Second Allogeneic Hematopoietic Stem Cell Transplantation in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT A second allogeneic (allo‐)hematopoietic stem cell transplantation (HSCT2) is a potential curative option for pediatric patients with acute lymphoblastic leukemia (ALL) following relapse after first allogeneic transplantation (HSCT1), but its efficacy is limited by high relapse rates and transplant‐related toxicity in highly pretreated ...
Ava Momm   +10 more
wiley   +1 more source

Theory of electrostatically induced shape transitions in carbon nanotubes

open access: yes, 2010
A mechanically bistable single-walled carbon nanotube can act as a variable-shaped capacitor with a voltage-controlled transition between collapsed and inflated states. This external control parameter provides a means to tune the system so that collapsed
E. Mockensturm   +6 more
core   +1 more source

Shape Theory of Maps

open access: yesRevista Matemática Complutense, 1995
The author presents a simple and geometric description of the shape theory for maps of topological spaces. Previous descriptions of the shape category of maps have been given by D. Edwards and P. McAuley using Čech and Vietoris constructions to approximate a map and by V. H. Baladze, who used ANR-expansions for maps.
openaire   +3 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

On Shape Optimization Theory With Fractional p-Laplacian Operators

open access: yesAbstract and Applied Analysis
The focus of this paper is the investigation of shape optimization problems with operators such as fractional Laplacian and p-Laplacian operators, that is, −Δs and −Δps, where ...
Malick Fall   +3 more
doaj   +1 more source

Solving Poisson Equations by the MN-Curve Approach

open access: yesMathematics, 2022
In this paper, we adopt the choice theory of the shape parameters contained in the smooth radial basis functions to solve Poisson equations. Luh’s choice theory, based on harmonic analysis, is mathematically complicated and applies only to function ...
Lin-Tian Luh
doaj   +1 more source

Beyond Fermi pseudopotential: a modified GP equation

open access: yes, 2003
We present an effective potential and the corresponding modified Gross-Pitaevskii equation that account for the energy dependence of the two-body scattering amplitude through an effective-range expansion.
Fu, Haixiang, Gao, Bo, Wang, Yuzhu
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Forms and genesis of species abundance distributions [PDF]

open access: yesComputational Ecology and Software, 2015
Species abundance distribution (SAD) is one of the most important metrics in community ecology. SAD curves take a hollow or hyperbolic shape in a histogram plot with many rare species and only a few common species. In general, the shape of SAD is largely
Evans O. Ochiaga, Cang Hui
doaj  

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