Results 151 to 160 of about 4,160,392 (328)

Investigation of a possible malaria epidemic in an illegal gold mine in French Guiana: an original approach in the remote Amazonian forest. [PDF]

open access: yesMalar J, 2019
Douine M   +8 more
europepmc   +1 more source

Archean foreland basin tectonics in the Witwatersrand, South Africa [PDF]

open access: yes
The Witwatersrand Basin of South Africa is the best-known of Archean sedimentary basins and contains some of the largest gold reserves in the world. Sediments in the basin include a lower flysch-type sequence and an upper molassic facies, both of which ...
Burke, K., Kidd, W. S. F., Kusky, T. M.
core   +1 more source

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

Knowledge transfer inside the regional economic system: the case of eighty years of economic history of the Russian North-East [PDF]

open access: yes
Economic role of the knowledge transfer is studied on the example of the Russian North-East and its two basic branches that is exploration and mining which form the core of the regional economy (regional mining system).
Alexander Pelyasov   +3 more
core  

The Realization of Multidirectional, Free‐Standing 3D Plasmonic Nanostructures via 3D Nanoprinting: A Case Study of Fractal Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Free‐standing plasmonic gold‐based fractal antennas are fabricated by 3D nanoprinting, employing focused electron beam induced deposition and an optimized purification method to remove carbon while conserving structural fidelity. Simulation and experiment show broadband plasmonic activity, including customizable polarizability, thereby paving the way ...
Verena Reisecker   +6 more
wiley   +1 more source

Application of placer gold morphology to gold exploration

open access: yes, 2017
Placer gold undoubtedly carries some of the features of endogenous gold. The physical and chemical characteristics of such gold are influenced by many factors: the nature of the primary gold, the water force, the morphology of the river bed, the length of transport and the chemical composition of the water in the river. In the Republic of Macedonia has
Stefanova, Violeta   +2 more
openaire   +1 more source

Expanding Chemical Space of Nucleic Acid Nanoparticles for Tunable Antiviral‐Like Immunomodulatory Responses and Potent Adjuvant Activity

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a nucleic acid nanoparticle (NANP) platform designed to be rrecognized by the human innate immune system in a regulated manner. By changing chemical composition while maintaining constant architectural parameters, we identify key determinants of immunorecognition enabling the rational design of NANPs with tunable immune activation profiles
Martin Panigaj   +21 more
wiley   +1 more source

Extraordinary fast-twitch fiber abundance in elite weightlifters. [PDF]

open access: yesPLoS One, 2019
Serrano N   +7 more
europepmc   +1 more source

Tailoring the Properties of Functional Materials With N‐Oxides

open access: yesAdvanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich   +5 more
wiley   +1 more source

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