Results 31 to 40 of about 212,116 (242)

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

The cerebellum is involved in processing of predictions and prediction errors in a fear conditioning paradigm

eLife, 2019
Prediction errors are thought to drive associative fear learning. Surprisingly little is known about the possible contribution of the cerebellum. To address this question, healthy participants underwent a differential fear conditioning paradigm during 7T
Thomas Michael Ernst, Anna Evelina Brol, Marcel Gratz, Christoph Ritter, Ulrike Bingel, Marc Schlamann, Stefan Maderwald, Harald H Quick, Christian Josef Merz, Dagmar Timmann   +9 more
doaj   +1 more source

Modeling Galactic extinction

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
We present a model for interstellar extinction dust, in which we assume a bimodal distribution of extinction carriers, a dispersion of core-mantle grains, supplemented by a collection of PAHs in free molecular form. We use state-of-the-art methods to calculate the extinction due to macroscopic dust particles, and the absorption cross-sections of PAHs ...
CECCHI PESTELLINI C., MULAS G., CASU S., IATI' M. A., SAIJA, Rosalba, CACCIOLA, ADRIANO, BORGHESE, Ferdinando, DENTI, Paolo   +7 more
openaire   +4 more sources

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

When is an "Extinct" Species Really Extinct? Gauging the Search Efforts for Hawaiian Forest Birds and the Ivory-Billed Woodpecker

Avian Conservation and Ecology, 2008
Rare species, particularly those in inaccessible habitat, can go years without being observed. If we are to allocate conservation resources appropriately to conserving such species, it is important to be able to distinguish "rare" from "extinct ...
J. Michael. Scott, Fred L. Ramsey, Martjan Lammertink, Kenneth V. Rosenberg, Ron Rohrbaugh, John A. Wiens, J. Michael. Reed   +6 more
doaj   +1 more source

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

Advanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo, Yuxuan Hou, Melchor Matabuena, Rik R. Tykwinski, Dirk M. Guldi   +4 more
wiley   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

The conservation impact of botanical drones: Documenting and collecting rare plants from vertical cliffs and other hard‐to‐reach areas

Ecological Solutions and Evidence
A high percentage of island floras are at risk of extinction and have been reduced to relic populations, often in remote hard‐to‐reach areas. Uncrewed aircraft systems (UAS aka drones) are now being utilized to assist in the survey and collection of rare
Ben Nyberg, Célia Bairos, Marcela Brimhall, Susan M. Deans, Sholeh Hanser, Scott Heintzman, Ann Hillmann Kitalong, Miguel Menezes de Sequeira, Niro Nobert, Nina Rønsted, Naito Soaladaob, Kenneth R. Wood, Adam M. Williams   +12 more
doaj   +1 more source

Distinct behavioral phenotypes in ethanol-induced place preference are associated with different extinction and reinstatement but not behavioral sensitization responses

Frontiers in Behavioral Neuroscience, 2014
Conditioned place preference (CPP) is a model to study the role of drug conditioning properties. In outbred strains, individual variability may affect some behavioral measures.
João Victor Nicodemos Pildervasser, Karina Possa Abrahao, Maria Lucia Oliveira Souza-Formigoni   +2 more
doaj   +1 more source

Deteriorating Habitats and Conservation Strategies to Repopulate the Endangered Indus River Dolphin (Platanista gangetica minor); a Lesson Learned From the Conservation Practices of the Yangtze Finless Porpoise (Neophocaena asiaeorientalis)

Frontiers in Marine Science, 2021
The Indus River dolphin (IRD; Platanista gangetica minor) is an endangered and blind freshwater cetacean, endemic to the Indus River system of Pakistan and India.
Ghulam Nabi, Shahid Ahmad, Richard William McLaughlin, Yujiang Hao, Suliman Khan, Naveed Ahmad, Saeed Ahmad, Muhammad Shoaib Kiani, Yuefeng Wu, Dongming Li   +9 more
doaj   +1 more source