Results 61 to 70 of about 528,422 (291)
A Host‐Guest, Zeolite/Organocation Material With Isotropic Zero Thermal Expansion
Advanced Functional Materials, EarlyView.The use of selected organic structure directing agents for the hydrothermal synthesis of targeted zeolites exhibiting negative thermal expansion provides a straightforward strategy to obtain a new class of host‐guest, nanostructured, crystalline zero thermal expansion materials made of light and abundant elements.
João Pedro Falk de Campos +4 more
wiley +1 more source
Measurement and Modeling of Ground-Level Ozone Concentration in Catania, Italy using Biophysical Remote Sensing and GIS [PDF]
, 2017 This experimental study examined spatial variation of ground level ozone (O3) in the city of Catania, Italy using thirty passive samplers deployed in a 500-m grid pattern. Significant spatial variation in ground level O3 concentrations (ranging from 12.8
Brusca, Sebastian +5 more
core +1 more source
An estimate of the stratospheric contribution to springtime tropospheric ozone maxima using TOPSE measurements and beryllium-7 simulations [PDF]
, 2003 Measurements of tropospheric ozone (O3) between 30°N and 70°N show springtime maxima at remote locations. The contribution of seasonal changes in stratosphere–troposphere exchange (STE) to these maxima was investigated using measurements from the ...
Allen, Dale J +4 more
core +3 more sources
3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence
Advanced Healthcare Materials, EarlyView.Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes +11 more
wiley +1 more source
Selected Aspects of Innovative Activity of Polish Enterprises in 2016–2020
Marketing of Scientific and Research Organizations, 2022 The study aimed to analyse selected aspects of innovative activities of enterprises in Poland in 2016–2020. The article is based on literature studies, using a query of scientific publications and statistical analyses of data published by Statistics ...
Bobola Agnieszka +3 more
doaj +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
مجله علمی دانشگاه علوم پزشکی کردستان, 2018 Assessment of air quality in Sanandaj City and its association with cardiovascular- respiratory diseases, and preterm birth in 2015-16 Borhan Mansouri1, Namamali Azadi2, Amir Mohammadi3, Younes Hame Sadeghi4, Ali Mansouri5, Jameleh Majidi6 1. Assistant
Borhan Mansouri +5 more
doaj
International Journal of Management and Economics, 2014 The framework of the endogenous growth models and empirical evidence argue that two dimensions determine a region's ability to narrow its technological gap and improve its productivity growth. The first is its absorptive capacity, e.g.
Runiewicz-Wardyn Malgorzata
doaj +1 more source
Business Systems Research, 2023 Built heritage in developed tourism destinations presents a resource of attractiveness, and its presentation through digital technology impacts the perception of culture.
Floričić Tamara +2 more
doaj +1 more source
Unexplained enhancements of CH3Br in the Arctic and sub-Arctic lower troposphere during TOPSE spring 2000 [PDF]
, 2003 Elevated concentrations of methyl bromide (CH3Br) were observed in the Arctic atmospheric boundary layer (BL) during periods of widespread BL ozone (O3) depletion episodes (ODEs: O3 mixing ratios < 20 × 10-9 or parts per billion by volume, ppbv ...
Blake, DR +4 more
core