Results 111 to 120 of about 203,537 (274)

Unsaturated biobased polyesters from bicyclic α‐pinene‐based diols

open access: yesPolymer International, EarlyView.
We present the synthesis of four biosourced unsaturated polyesters made from chiral terpene‐based diols and esters of renewable diacids. The resulting materials harbor a bicyclic pinene ring in their backbones which leads to enhanced thermal properties while still conferring susceptibility to enzyme hydrolysis for chains having a cis alkene.
Ganapathy Ranjani   +4 more
wiley   +1 more source

A Hodge–Tate decomposition with rigid analytic coefficients

open access: yesForum of Mathematics, Sigma
Let X be a smooth proper rigid analytic space over a complete algebraically closed field extension K of $\mathbb {Q}_p$ . We establish a Hodge–Tate decomposition for X with G-coefficients, where G is any commutative locally p-divisible rigid group.
Lucas Gerth
doaj   +1 more source

Bethe-Peierls Approximation for Linear Monodisperse Polymers Re-examined

open access: yes, 2011
Bethe-Peierls approximation, as it applies to the thermodynamics of polymer melts, is reviewed. We compare the computed configurational entropy of monodisperse linear polymer melt with Monte Carlo data available in literature.
Heinrich, G., Semeriyanov, F. F.
core   +1 more source

Silver‐Alloyed Wide‐Bandgap (Ag,Cu)(In,Ga)S2 Thin‐Film Solar Cells With 15.5% Efficiency

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
This study reports improvements in compositional homogeneity, microstructure, enhanced radiative recombination, and extended carrier lifetime of CIGS absorber via Ag incorporation. The optimal Ag‐alloyed CIGS solar cells achieve 15.5% PCE and 948 mV VOC, competing with the VOC of the Ag‐free reference sample from the same batch.
Yucheng Hu   +16 more
wiley   +1 more source

Some remarks on the companions conjecture for normal varieties

open access: yesComptes Rendus. Mathématique
Drinfeld in 2010 proved the companions conjecture for smooth varieties over a finite field, generalizing L. Lafforgue’s result for smooth curves. We study the obstruction to prove the conjecture for arbitrary normal varieties.
D’Addezio, Marco
doaj   +1 more source

Dilatation de bronches localisée révélant une tumeur carcinoïde

open access: yesThe Pan African Medical Journal, 2016
Nous rapportons l'observation d'une patiente âgée de 32 ans, qui a présenté un syndrome bronchique purulent récidivant depuis 05 ans. Le bilan radiologique a montré des clartés finement cerclés au niveau basithoracique gauche en rapport avec des ...
Hind Janah   +4 more
doaj   +1 more source

Unlocking n‐alk‐1‐ynes conformers: Quantum “trigger finger” versus “stiff joint” conformations

open access: yesSmart Molecules, EarlyView.
Quantum chemical analysis reveals the unique function of n‐alk‐1‐yne terminus as a Quantum “Trigger Finger,” exhibiting two near‐isoenergetic conformers (Cs ${\mathrm{C}}_{s}$and C1 ${\mathrm{C}}_{1}$) locked by a symmetric high barrier. This contrasts with the lower asymmetric barrier of the conventional asymmetric “Stiff Joint” alkyl chain.
Ioan Bâldea
wiley   +1 more source

Front Matter

open access: yesGeophysical Monograph Series, Page i-xiv., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
wiley  

+1 more source

Predictive factors for referral to a peer support worker in psychosocial rehabilitation centers

open access: yesFrontiers in Psychiatry
IntroductionPeer support workers are individuals with personal lived experience of mental health conditions, addictions, or neurodevelopmental disorders, and can be employed as professionals within mental health services.
Romain Monnier   +13 more
doaj   +1 more source

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