Results 81 to 90 of about 660,302 (265)

Determination of the Quasi-Geoid of Xinjiang and Tibet Areas and the Normal Height of Mt. Everest Based on EGM2008

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2011
The normal height H* is the height above the quasi-geoid, which coincides with the geoid in the ocean but slightly deviates from the geoid in terrestrial areas. In Mainland China, the height datum system is based on the quasi-geoid.
WenBin Shen   +3 more
doaj   +1 more source

Lipid Nanoparticles for the Delivery of CRISPR/Cas9 Machinery to Enable Site‐Specific Integration of CFTR and Mutation‐Agnostic Disease Rescue

open access: yesAdvanced Functional Materials, EarlyView.
Lipid nanoparticles (LNPs) are optimized to co‐deliver Cas9‐encoding messenger RNA (mRNA), a single guide RNA (sgRNA) targeting the endogenous cystic fibrosis transmembrane conductance regulator (CFTR) gene, and homologous linear double‐stranded donor DNA (ldsDNA) templates encoding CFTR.
Ruth A. Foley   +12 more
wiley   +1 more source

Combinatorial Synthesis of Next Generation Water‐Soluble Quaternized N‐Halamine Oligomers with Long‐Lasting Antiviral Properties

open access: yesAdvanced Functional Materials, EarlyView.
A combinatorial library of dual‐functional antiviral oligomers incorporating N‐halamine and quaternary ammonium functionalities is developed for long‐lasting antiviral activity. The lead materials exhibit rapid and durable antiviral activity against SARS‐CoV‐2 variants and influenza H1N1, with 4 to 5 log reduction in viral copies at 5 mg mL−1 ...
Eid Nassar‐Marjiya   +14 more
wiley   +1 more source

Estructura y composición florística de la vegetación secundaria en tres regiones de la sierra norte de Chiapas, México

open access: yesPolibotánica, 2015
El estado de Chiapas presenta una severa deforestación de los diferentes tipos de selvas, en la actualidad sólo quedan fragmentos de la vegetación original y con diferentes grados de sucesión, por lo que se planteó el objetivo de conocer la estructura y ...
Diana López-Pérez   +2 more
doaj  

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Ciclo de vida de Pellaea ternifolia (Cav.) Link subsp. ternifolia (Pteridaceae-Polypodiidae)

open access: yesPolibotánica, 2015
Se describe el ciclo de vida dePellaea ternifolia(Cav.) Link subsp.ternifolia. Los especímenes fueron recolectados en un bosque dePinusperturbado en San Miguel de los Alcanfores, municipio de Tlaxco, Tlaxcala, México.
Jorge Huerta-Zavala   +3 more
doaj  

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

open access: yesAdvanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey   +12 more
wiley   +1 more source

The genomic identification of Colombian Acinetobacter baumannii clinical isolates by RFLP-PCR analysis of the 16S-23S rRNA gene spacer region

open access: yesRevista Colombiana de Biotecnología, 2011
Identificación genómica de aislamientos colombianos de Acinetobacter baumannii mediante RFLP-PCR de la región intergénica espaciadora de los genes 16S y 23S rRNAAbstractThe 16S-23S rRNA gene intergenic spacer (ITS) was analysed by RFLP in this study to ...
María Andrea Hernández   +9 more
doaj  

Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light

open access: yesAdvanced Functional Materials, EarlyView.
A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid   +13 more
wiley   +1 more source

Germinación de tres especies de Cephalocereus (Cactaceae) endémicas delIstmo de Tehuantepec, México

open access: yesPolibotánica, 2015
Se estudió el proceso germinativo de tres especies deCephalocereus (C. apicicephalium, C. nizandensis, C. totolapensis)endémicas del Istmo de Tehuantepec, Oaxaca, México, bajo las hipótesis de que las semillas perderán la capacidad germinativa a medida ...
Maria Luisa Bárcenas-Argüello   +3 more
doaj  

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