Results 91 to 100 of about 19,061 (299)

The first Neanderthal remains from an open-air Middle Palaeolithic site in the Levant [PDF]

open access: yes, 2017
The late Middle Palaeolithic (MP) settlement patterns in the Levant included the repeated use of caves and open landscape sites. The fossil record shows that two types of hominins occupied the region during this period - Neandertals and Homo sapiens ...
Agha, Nuha   +21 more
core   +4 more sources

Heptazine‐Assisted Multi‐Resonance TADF Emitters With Fast Reverse Intersystem Crossing for Efficient Solution‐Processed OLEDs

open access: yesAdvanced Materials, EarlyView.
Heptazine‐assisted MR‐TADF emitters enable narrowband yellow emission with high efficiency at high luminance in solution‐processed OLEDs. In doped films, HAP‐3CzBN achieves a record‐fast kRISC of 1.19 × 106 s−1. The optimized HAP‐3CzBN devices deliver 15.5% EQEmax with negligible roll‐off at 1000 cd m−2, 11.2% at 10,000 cd m−2, and a benchmark 20.3 ...
Changfeng Si   +5 more
wiley   +1 more source

Potent Liver‐Tropic mRNA Lipid Nanoparticles: ApoE‐Mediated Delivery Through a Low‐Density Lipoprotein Receptor Independent Uptake Mechanism

open access: yesAdvanced Materials, EarlyView.
Helper and ionizable lipids play a crucial role in determining ApoE binding and subsequent liver tropism and LDLR‐mediated uptake. Ionizable lipids primarily govern the LDLR‐independent uptake pathway. This complementary interplay between lipid components ultimately governs LNP delivery performance and therapeutic efficacy in the liver.
Ashish Sarode   +16 more
wiley   +1 more source

Les sables de Fontainebleau: a natural quartz reference sample and its characterisation [PDF]

open access: yes, 2017
Fundamental studies on luminescence production in natural quartz require samples which can be studied by groups of laboratories using complementary methods.
Adamiec, Gregorz   +9 more
core  

APLICAÇÃO DE MÉTODOS DE LUMINESCÊNCIA E DA RESSONÂNCIA DE SPIN ELECTRÓNICA NA DATAÇÃO DE UNIDADES SEDIMENTARES QUATERNÁRIAS E DA EVOLUÇÃO DAS PAISAGENS [PDF]

open access: yes, 2017
Apresenta-se uma síntese dos princípios, métodos e aplicações da datação por luminescência a estudos de Geomorfologia ou de Geologia do Quaternário, bem como alguns exemplos da datação de depósitos sedimentares portugueses.A synthesis of the principles ...
Cunha, Pedro, Martins, António
core   +1 more source

Aggregation‐Induced Emission Molecular Design for Mitigating Non‐Radiative Energy Loss in Organic Solar Cells

open access: yesAdvanced Materials, EarlyView.
Aggregation‐induced emission strategy is first used to overcome aggregation‐caused quenching in Y‐series acceptors. By integrating tetraphenylethylene, the dTPE exhibits three‐fold PLQY enhancement and significantly suppressed non‐radiative energy loss. An ultra‐low Eloss of 0.130 eV and a record VOC of 0.93 V are achieved, resulting in a PCE over 20.5%
Yingze Zhang   +18 more
wiley   +1 more source

Study of scintillation in natural and synthetic quartz and methacrylate [PDF]

open access: yes, 2014
Samples from different materials typically used as optical windows or light guides in scintillation detectors were studied in a very low background environment, at the Canfranc Underground Laboratory, searching for scintillation. A positive result can be
Amare, J.   +17 more
core   +2 more sources

Polarize the Solvent to Regulate the Intermediate Phase and Dynamic Crystallization of Perovskite Films

open access: yesAdvanced Materials, EarlyView.
A solvent engineering strategy using polar polymers is introduced to regulate perovskite crystallization dynamics in solar cells. Strongly polarized fluorinated groups stabilize the intermediate phase and control solvent exfoliation, leading to high‐quality films with suppressed defects.
Zhuoqiong Zhang   +14 more
wiley   +1 more source

Three Centuries of Snowpack Decline at an Alpine Pass Revealed by Cosmogenic Paleothermometry and Luminescence Photochronometry

open access: yesGeophysical Research Letters
The spatial and temporal distribution of Alpine snow is a sensitive gauge of environmental change. While understanding past snow dynamics is essential for reconstructing past climate and forecasting future trends, reliable snowpack data prior to the ...
Benny Guralnik   +13 more
doaj   +1 more source

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