Results 71 to 80 of about 1,212,194 (313)

"Dry-column" chromatography of plant pigments [PDF]

, 1973
Separation of plant pigments which can be accomplished on thin-layer silica plates with mixture of petroleum ether, halocarbon, acetone, and polar solvent can be readily translated into dry-column technique that yields reproducible chromatograms after ...
Lehwalt, M. F., Oyama, V. I., Woeller, F. H.   +2 more
core   +1 more source

Scanning tunneling microscopy studies of monolayer templates: alkylthioethers and alkylethers [PDF]

, 2008
Scanning tunneling microscopy has been used to determine the molecular ordering in stable, ordered monolayers formed from long-chain normal and substituted alkanes in solution on highly oriented pyrolytic graphite surfaces.
Brunschwig, Bruce S., Lewis, Nathan S., Papadantonakis, Kimberly M.   +2 more
core   +1 more source

Pharmaceutical Applications of Cellulose Ethers and Cellulose Ether Esters.

Biomacromolecules, 2018
Cellulose ethers have proven to be highly useful natural-based polymers, finding application in areas including food, personal care products, oil field chemicals, construction, paper, adhesives, and textiles.
H. Ç. Arca, Laura I. Mosquera-Giraldo, Vivian Bi, Daiqiang Xu, L. Taylor, K. Edgar   +5 more
semanticscholar   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

From classification medicine to clinical medicine (the end of the XVIII century - 1870s). Communication 5. Reforms in therapy in 1840s-1860s

Терапевтический архив, 2012
Reforms of therapy in 1840-1860s are considered: development of the methods of objective assessment of efficacy of some methods of treatment, appearance of experimental pharmacology, introduction of anasthesia.
Andrey Mikhaylovich Stochik, Sergey Narkizovich Zatravkin, A M Stochik, S N Zatravkin   +3 more
doaj  

MIND WITHIN MATTER: SCIENCE, THE OCCULT, AND THE (META)PHYSICS OF ETHER AND AKASHA

Zygon, 2016
The intersection between quantum theory, metaphysical spirituality, and Indian‐inspired philosophy has an established place in speculative scientific and alternative religious communities alike.
doaj   +2 more sources

Ethereal Ethics

PLoS Biology, 2004
In response to the Blackburn and Rowley essay on the President's Council on Bioethics, several thought-provoking opinions on ethical challenges in biomedical research are expressed by prominent ...
openaire   +4 more sources

Mechanical Properties Optimization of Poly-Ether-Ether-Ketone via Fused Deposition Modeling

Materials, 2018
Compared to the common selective laser sintering (SLS) manufacturing method, fused deposition modeling (FDM) seems to be an economical and efficient three-dimensional (3D) printing method for high temperature polymer materials in medical applications. In
X. Deng, Z. Zeng, B. Peng, Shuo Yan, W. Ke   +4 more
semanticscholar   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

Advanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

O conceito de "campo" em sala de aula: uma abordagem histórico-conceitual

Revista Brasileira de Ensino de Física
O conceito de campo é uma das idéias fundamentais da física e pode motivar um rico debate em sala de aula sobre as noções básicas desta ciência. Apesar de sua importância, quando o mesmo é apresentado em sala de aula geralmente somente seus aspectos ...
José Fernando Moura Rocha
doaj   +1 more source