Results 21 to 30 of about 6,328 (256)

Poly(oligonucleotide) [PDF]

open access: yesJournal of the American Chemical Society, 2014
Here we report the preparation of poly(oligonucleotide) brush polymers and amphiphilic brush copolymers from nucleic acid monomers via graft-through polymerization. We describe the polymerization of PNA-norbornyl monomers to yield poly-PNA (poly(peptide nucleic acid)) via ring-opening metathesis polymerization (ROMP) with the initiator, (IMesH2)(C5H5N ...
James, Carrie R.   +6 more
openaire   +2 more sources

Optimize Before You Synthesize—Enhancing the Ionic Conductivity of Li7SiPS8 Using Bayesian Optimization

open access: yesAngewandte Chemie, EarlyView.
Bayesian optimization was used to optimize the synthesis parameters of the solid electrolyte Li7SiPS8$\mathrm {Li}_7\mathrm {SiPS}_8$ in order to increase the ionic conductivity. After only 32 iterations, the ionic conductivity was successfully increased from 2 to 7 mS cm−1$\mathrm {cm}^{-1}$ at 25∘C$^\circ\mathrm {C}$, while synthesis temperature and ...
Lucas G. Balzat   +8 more
wiley   +2 more sources

Poly(iminomethylenes). 10. Esterolytic catalysis by poly(carbylhistidine) and poly(carbylhistamine) [PDF]

open access: yesRecueil des Travaux Chimiques des Pays-Bas, 1979
AbstractThe catalytic activities in the hydrolysis of 4‐nitro‐ and 2,4‐dinitrophenyl acetate were determined for a polymer of 3‐(4‐imidazolyl)‐2‐isocyanopropanoic acid (1a) and of 2‐(4‐imidazolyl)‐1‐isocyanoethane (1b). A detailed kinetic analysis has been performed.
Eijk, J.M. van der   +3 more
openaire   +2 more sources

Comment on “Can Charge Transfer Across C─H···O Hydrogen Bonds Stabilize Oil Droplets in Water?”

open access: yesAngewandte Chemie, EarlyView.
Nanoscale oil droplets in water are kinetically stable and charged, with a pH dependent electrophoretic mobility. Although the source of this charge is agreed to arise from water, 2 main hypotheses remain: OH− adsorption or electronic charge density displaced via hydrogen bonds. Molecular surface specific experiments are reviewed, that all point to the
P. Singh   +3 more
wiley   +2 more sources

Sagittal Balance Before and after Pregnancy. Nature Course and Influence of Performed Spine Surgery Method

open access: yesGlobal Spine Journal, 2015
Introduction The amount of spine surgeries grow each year. Spine diseases usually associated with advanced age start to appear in much younger patients. The matter of sagittal balance plays a crucial role in modern spine surgery.
Bartosz Polis   +2 more
doaj   +1 more source

Leptospirose pulmonar

open access: yesRevista Portuguesa de Pneumologia, 2007
Resumo: No presente artigo, os autores discutem brevemente sobre a leptospirose, realçando a forma pulmonar da doença. Revê-se a patologia, achados clínicos, diagnóstico por métodos de imagem e broncoscopia e tratamento da leptospirose pulmonar. É
João Cláudio Barroso Pereira   +3 more
doaj   +1 more source

Poly(dG).poly(dC) at neutral and alkaline pH: the formation of triple stranded poly(dG).poly(dG). poly(dC)

open access: yesNucleic Acids Research, 1978
Alkaline titrations of different samples of poly(dG).poly(dC) and of the constituent homopolymers poly(dG) and poly(dC) have been performed in 0.15 M NaCl and their CD spectra followed. Sample I contained a slight excess of poly(dC) (52% C: 48% G) and showed a single reversible transition (pK = 11.9) due to the dissociation of double stranded poly(dG ...
C, Marck, D, Thiele
openaire   +3 more sources

The hidden penalties of informal work: Life-job satisfaction and negative affect

open access: yesWellbeing, Space and Society
The study of the subjective well-being of informal workers in the global South is new and scattered. Little is known about informal workers' job and life satisfaction or this group's positive and negative emotional experiences.
Lina Martínez, Maria Isabel Zafra
doaj   +1 more source

Toward a Unified Mechanistic Understanding of Polymer Electrolytes for Advanced Solid‐State Batteries

open access: yesAdvanced Materials, EarlyView.
Polymer electrolytes (PEs) are often indiscriminately grouped as “solid polymer electrolytes (SPEs)”, despite fundamental differences in their ion‐transport mechanisms. This Perspective establishes a mechanism‐based framework that distinguishes gel, quasi‐solid, and all‐solid polymer electrolytes based on their dominant ion‐transport pathways.
Jing Chen   +15 more
wiley   +1 more source

Osmanlı Devleti’nde Polis Teşkilatının Kurulması: Urfa Örneği (1845-1918)

open access: yesYakın Dönem Türkiye Araştırmaları, 2020
Yeniçeri Ocağı’nın kaldırılmasından sonra başkent ile eyaletlerde asayiş ve güvenliği sağlamak için 20 Mart 1845 tarihinde, 17 maddeden oluşan bir Polis Nizamnâmesi kabul edilmiş; 10 Nisan 1845 tarihinde ise Tophane-i Amire Müşiriyeti’ne bağlı polis ...
Ahmet Aslan
doaj  

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