Results 81 to 90 of about 321,951 (345)

Quantum Chemistry Investigation of Linear and Nonlinear (chir)optical Properties of Oligoamide Foldamers

ChemistryEurope, EarlyView.
The linear and nonlinear (chir)optical properties of four oligoamide foldamers with different donor groups are studied by means of time‐dependent density functional theory calculations. It is shown that stronger donors yield larger hyperpolarizabilities due to low‐lying charge–transfer states. The agreement with the experiments concerning the key bands
Komlanvi Sèvi Kaka, Andrea Bonvicini, Yann Ferrand, Céline Olivier, Vincent Rodriguez, Benoît Champagne   +5 more
wiley   +1 more source

A tiny new species of Platypelis from the Marojejy National Park in northeastern Madagascar (Amphibia: Microhylidae) [PDF]

, 2012
We describe a tiny new frog species of the genus Platypelis (Anura: Microhylidae: Cophylinae) from Marojejy National Park, northeastern Madagascar. Platypelis ravus sp. nov.
Glaw, Frank, Köhler, Jörn, Vences, Miguel   +2 more
core   +2 more sources

Programming the Optoelectronic Properties of Atomically Precise Gold Nanoclusters Using the Conformational Landscape of Intrinsically Disordered Proteins

Chemistry – A European Journal, EarlyView.
ABSTRACT The rational design of hybrid nanomaterials with precisely controlled properties remains a central challenge in materials science. While atomically precise gold nanoclusters (Au‐NCs) offer molecule‐like control over a metallic core, tuning their optoelectronic behavior via surface engineering is often empirically driven.
Santiago Rodriguez, Sylvain Kumanski, Zeineb Ayed, Aurélie Fournet, Charlène Bouanchaud, Amin Sagar, Frédéric Allemand, Vladimir A. Baulin, Ute Resch‐Genger, Juan Cortés, Nathalie Sibille, Fabien Chirot, Karl David Wegner, Rodolphe Antoine, Xavier Le Guével, Pau Bernadó   +15 more
wiley   +1 more source

Maladie rénale chronique: facteurs associes, étiologies, caractéristiques clinique et biologique à Lubumbashi en République Démocratique du Congo

The Pan African Medical Journal, 2017
INTRODUCTION: La maladie rénale chronique constitue un véritable problème mondial de santé publique du fait de l'augmentation de ses principaux facteurs de risque à savoir l'hypertension artérielle et le diabète sucré. Dans nos milieux à faible revenu et
Serge Muleka Ngoie, Philippe Mulenga, Olivier Mukuku, Christian Ngama Kakisingi, Cédrick Milindi Sangwa, Pascal Tshimwang Nawej, Claude Mulumba Mwamba, Dophra Nkulu Ngoy, Faustin Wa Pa Manda Muteta   +8 more
doaj   +1 more source

Adaptive sampling by information maximization [PDF]

, 2001
The investigation of input-output systems often requires a sophisticated choice of test inputs to make best use of limited experimental time. Here we present an iterative algorithm that continuously adjusts an ensemble of test inputs online, subject to ...
Machens, Christian K.
core   +2 more sources

Simple Access to a Series of Higher Substituted Pentafluoroorthotellurate‐Based Silanes

Chemistry – A European Journal, EarlyView.
The pentafluoroorthotellurate ligand was introduced to organo silanes. A variety of silanes with the formular RxSi(OTeF5)4–x were synthesized and characterized via spectroscopic techniques and sc‐XRD. The influence of the number of OTeF5 groups on structural properties as well as the fluoride ion affinities (FIA) has been studied and compared to other ...
Friederike Oesten, Lukas Fischer, Kurt F. Hoffmann, Niklas Limberg, Simon Steinhauer, Anja Wiesner, Julia Bader, Sebastian Riedel   +7 more
wiley   +1 more source

Accessing Sn≥2 States of a TADF Emitter by Femtosecond NIR Spectroscopy

Chemistry – A European Journal, EarlyView.
The depicted thermally activated delayed fluorescence (TADF) emitter was studied by femtosecond near‐infrared (NIR) spectroscopy. A prominent NIR transition was shown to be strongly solvent‐dependent, with implication for intersystem crossing in the compound.
Wiebke Haselbach, Jasmin Matthes, Andreas Prüfer, Simon L. Zimmermann, Monika Flörke, Thomas J. J. Müller, Peter Gilch, Barbara E. Nogueira de Faria   +7 more
wiley   +1 more source

Genetic diverstiy of Sugarcane yellow leaf virus in a sugarcane selection plot in Guadeloupe (FWI) [PDF]

, 2010
THE GENETIC diversity of Sugarcane yellow leaf virus (SCYLV) was investigated in a sugarcane selection plot in Guadeloupe to determine the incidence of the different known virus genotypes (BRA-PER, CUB and REU) in a breeding progeny.
Daugrois, Jean-Heinrich, Fernandez, Emmanuel, Girard, Jean-Claude, Roques, Danièle, Rott, Philippe, Roumagnac, Philippe   +5 more
core  

Embryonic development of the Mediterranean starfish Hacelia attenuata

Developmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo, Laurent Gilletta, Janet Chenevert, Stefania Castagnetti   +3 more
wiley   +1 more source

Studying interspecific population synchrony: current status and future perspectives

Ecography, EarlyView.
Interspecific population synchrony, or co‐fluctuations in the population dynamics and demographic parameters of different species, is an important ecological phenomenon with major implications for the stability of communities and ecosystems. It is also central in the context of biodiversity loss, as interspecific synchrony can influence how ecological ...
Ragnhild Bjørkås, Ivar Herfindal, Marlène Gamelon, Aline Magdalena Lee   +3 more
wiley   +1 more source