Results 41 to 50 of about 39,536 (308)

Modificação de zeólitas para uso em catálise Modifying zeolites for use in catalysis

open access: yesQuímica Nova, 2001
The use of zeolites and other molecular sieves as catalysts is discussed at an introductory level. The text includes a brief historic background on the use of zeolites in catalysis, and a discussion of some chemical and physical properties of silicalite,
Fernando J. Luna, Ulf Schuchardt
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

Wide Field-of-View Imaging With Wavefront Coded Diffractive Photon Sieves

open access: yesIEEE Photonics Journal, 2016
We report a demonstration of a wide field-of-view (FOV) imaging with a wavefront coded diffractive photon sieves. In conventional diffractive photon sieves (or other diffractive optical elements), clear imaging can only be achieved within near-zero FOV ...
Xiaonan Zhao   +4 more
doaj   +1 more source

The Information Sieve

open access: yesCoRR, 2015
We introduce a new framework for unsupervised learning of representations based on a novel hierarchical decomposition of information. Intuitively, data is passed through a series of progressively fine-grained sieves. Each layer of the sieve recovers a single latent factor that is maximally informative about multivariate dependence in the data. The data
Greg Ver Steeg, Aram Galstyan
openaire   +3 more sources

Dihedral sieving phenomena

open access: yesDiscrete Mathematics, 2020
Cyclic sieving is a well-known phenomenon where certain interesting polynomials, especially $q$-analogues, have useful interpretations related to actions and representations of the cyclic group. We propose a definition of sieving for an arbitrary group $G$ and study it for the dihedral group $I_2(n)$ of order $2n$.
Sujit Rao, Joe Suk
openaire   +5 more sources

Selective capture of phosphopeptides by hierarchical Ti-aluminophosphate-5 molecular sieves

open access: yes, 2012
Hierarchical Ti-aluminophosphate-5 molecular sieves templated by glucose have been synthesized and applied as a potential adsorbent for the first time to selectively capture phosphopeptides from complex peptide mixtures prior to MALDI-TOF MS ...
Qin, Hongqiang   +12 more
core   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

One-Pot Strategies for Lithium Recovery from Beta-Spodumene and LTA-Type Zeolite Synthesis

open access: yesCrystals
This study presents a groundbreaking method for extracting lithium from beta-spodumene while simultaneously achieving the sustainable synthesis of LTA-type zeolite, designated as LPM-15, without relying on organic solvents or calcination.
Leonardo Leandro dos Santos   +2 more
doaj   +1 more source

Adsorção de CO2 em peneiras moleculares micro e mesoporosas

open access: yesQuímica Nova, 2014
Microporous molecular sieves of type Y, Beta, ZSM-5, ZSM-12 and ZSM-35, and mesoporous molecular sieves of type MCM-41 and MCM-48, and these sieves modified with triethanolamine and ethylenediamine were obtained and characterized by XRD, FTIR, TGA and ...
Thiago G. Oliveira   +4 more
doaj   +1 more source

Enantiomerically enriched, polycrystalline molecular sieves

open access: yes, 2021
This disclosure describes enantiomerically enriched chiral molecular sieves and methods of making and using the same.
Brand, Stephen Kramer   +3 more
core  

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