Results 41 to 50 of about 45,307 (270)

Cyclic polyacetylene

open access: yesNature Chemistry, 2021
Here we demonstrate the synthesis of cyclic polyacetylene (c-PA), or [∞]annulene, via homogeneous tungsten-catalysed polymerization of acetylene. Unique to the cyclic structure and evidence for its topology, the c-PA contains >99% trans double bonds, even when synthesized at -94 °C.
Zhihui Miao   +6 more
openaire   +4 more sources

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia   +7 more
wiley   +1 more source

On integrability and cyclicity of cubic systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2020
In this paper we study the integrability of a few families of the complex cubic system. We have obtained necessary and sufficient conditions for existence of a local analytic first integral.
Maša Dukarić
doaj   +1 more source

Cyclicity in $\ell^p$ spaces and zero sets of the Fourier transforms

open access: yes, 2018
We study the cyclicity of vectors $u$ in $\ell^p(\mathbb{Z})$. It is known that a vector $u$ is cyclic in $\ell^2(\mathbb{Z})$ if and only if the zero set, $\mathcal{Z}(\widehat{u})$, of its Fourier transform, $\widehat{u}$, has Lebesgue measure zero and
Manach, Florian Le
core   +3 more sources

Parent Quality of Life at Two Years Following Their Child's Completion of Acute Lymphoblastic Leukemia Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Parents of children treated for acute lymphoblastic leukemia (ALL) often experience significant caregiver burden and disruption to their well‐being. While parent quality of life (QoL) during treatment is well characterized, little is known about outcomes during early survivorship.
Sara Dal Pra   +3 more
wiley   +1 more source

Inference of Field-Sensitive Reachability and Cyclicity

open access: yes, 2014
In heap-based languages, knowing that a variable x points to an acyclic data structure is useful for analyzing termination: this information guarantees that the depth of the data structure to which x points is greater than the depth of the structure ...
Genaim, Samir, Zanardini, Damiano
core   +1 more source

Strings on Plane Waves, Super-Yang Mills in Four Dimensions, Quantum Groups at Roots of One [PDF]

open access: yes, 2002
We show that the BMN operators in D=4 N=4 super Yang Mills theory proposed as duals of stringy oscillators in a plane wave background have a natural quantum group construction in terms of the quantum deformation of the SO(6) $R$ symmetry.
Alvarez-Gaume   +59 more
core   +4 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Pseudocontinuation and cyclicity for random power series

open access: yes, 2007
We prove that a random function in the Hardy space $H^2$ is a non-cyclic vector for the backward shift operator almost surely.
Abakumov, Evgeny, Poltoratski, Alexei
core   +4 more sources

Cyclic Sulfinamides

open access: yesThe Chemical Record, 2023
AbstractThe literature on cyclic sulfinamides (put simply, sultims) published from 1989 to 2022 has been summarized and reviewed. The information is divided into two sections: the analysis of synthetic methods on the preparation of cyclic sulfinamides and the discussion of the chemical properties of cyclic sulfinamides focusing on their reactions and ...
Alexey V. Dobrydnev   +2 more
openaire   +3 more sources

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