Results 131 to 140 of about 1,773,070 (385)

Media docena de cartas de Romualdo González Fragoso a Francisco Beltrán Bigorra (1913-14) [Six letters of Romualdo Gonzalez Fragoso to Francisco Beltrán Bigorra (1913-14)] [PDF]

open access: yesFlora Montiberica, 2013
RESUMEN: Estudio de seis cartas de Romualdo González Fragoso a Francisco Beltrán Bigorra, con noticias de los estudios biológicos que ambos realizaban los años 1913 y 1914, así como sobre las peculiares relaciones científicas que mantenían con otros ...
José María de Jaime Ruiz   +3 more
doaj  

IT adoption and spatial agglomeration - a model of cumulative adoption in a small open economy [PDF]

open access: yes
I develop a model of cumulative ICT investments in a small open economy framework with differenciated inputs and imperfect competition borrowed to Ciccone and Matsuyama (1996). Within this framework, fixed adoption costs and pecuniary externalities based
Bellone Flora
core  

The mosses of Easter Island [PDF]

open access: yes, 2002
The bryophyte flora of Easter Island has been poorly known primarily because few botanists have collected there. In order to increase the knowledge of the flora the two authors collected bryophytes from 12 localities on the island from April 28-May 3 ...
Bellolio, Gilda, Ireland, Robert R.
core  

Nano‐Patterned CuO Nanowire Nanogap Hydrogen Gas Sensor with Voids

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Sub‐5‐ppb hydrogen (H2) detection and sub‐10‐s response and recovery times are achieved based on nano‐patterned polycrystalline CuO nanowires nanogap gas sensors with voids using electron‐beam lithography and unique annealing processes. Pre‐H2 annealing, void‐generating oxidation, and downscaled nanogap electrodes are key to improving the sensing ...
Muqing Zhao   +4 more
wiley   +1 more source

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu   +3 more
wiley   +1 more source

The Biodiversity of Flora in Indonesia

open access: yes, 2015
Indonesia merupakan negara kepuluauan seluas sekitar 9 juta km 2 yang terletak diantara dua samudra dan dua benua dengan jumlah pulau sekitar 17.500 buah yang panjang garis pantainya sekitar 95.181 km.
C. Kusmana, A. Hikmat
semanticscholar   +1 more source

Multi‐Scaled Cellulosic Nanonetworks from Tunicates

open access: yesAdvanced Functional Materials, EarlyView.
Microbial and plant nanonetworks of cellulose have enabled a wide range of high‐performance yet sustainable materials. Herein, a third class of cellulosic nanonetworks is showcased by exploiting the only animal tissue‐producing cellulose nanofibers, i.e., ascidians. An ultrastructure including spherical cells and a microvasculature with diameters of 50–
Mano Govindharaj   +10 more
wiley   +1 more source

Los bosques riparios de Cantabria II. Saucedas de Salix atrocinerea y avellanedas relacionadas [PDF]

open access: yesFlora Montiberica, 2019
Se aportan datos ecológicos y fitosociológicos sobre las formaciones riparias y edafohigrófilas de Salix atrocinerea y Corylus avellana de la Comunidad Autónoma de Cantabria, en relación con las asociaciones Hyperico androsaemi-Salicetum atrocinereae y ...
Juan Antonio DURÁN GÓMEZ
doaj  

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