Results 141 to 150 of about 450,334 (291)

Dancing to multiple tunes: Establishing legitimacy with first‐time and repeat backers in crowdfunding campaigns

Strategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary Using 14,108 Kickstarter crowdfunding campaigns, we examine three strategies to gather support from first‐time versus repeat backers: narrative distinctiveness aligning with backers' expectations of novelty, endorsement from Kickstarter staff, and campaign leadership's reciprocity of funding other campaigns.
Stephanie Hepp, Alexander Vossen, Lien Denoo   +2 more
wiley   +1 more source

Interplay Between Oxidation State, Intervalence Charge Transfer Transitions and Electronic Conductivity in a Series of Ru‐Based Metal–Organic Frameworks

Small, EarlyView.
Ru‐based square‐grid metal–organic frameworks undergo dramatic conductivity enhancements after chemical oxidation. The mixed‐valent states exhibit the highest conductivity values, which correlate with the appearance of intervalence charge transfer bands.
Wang Zhang, Chunyu Luo, Hiroaki Suzuki, Hiroyoshi Ohtsu, Kiyohiro Adachi, Daisuke Hashizume, Bun Chan, Koji Harano, Biplab Manna, Yuki Wada, Masa‐aki Haga, Pavel M. Usov, Masaki Kawano   +12 more
wiley   +1 more source

The Fierce Morphological Battle of Silver Nanoparticles: How Irregularities, Vacancies and Defects Tip the Crossing Sizes

Small, EarlyView.
The silver nanoparticle morphologies are identified thanks to ab initio models, including original families of defects and complex motifs, compared to measurements provided at targeted sizes (309, 561, 742, and 923 atoms). The crossings between structures to within a few atoms have been predicted due to very accurate computational conditions, which are
Nathalie Tarrat, David Loffreda
wiley   +1 more source

Characterization of the Pore Environments in Covalent Organic Frameworks by Dynamic Spin Probe Exchange

Small, EarlyView.
Covalent organic frameworks (COFs) with alkyl or triethylene glycol pore linings are probed with water‐dissolved nitroxide radicals using CW EPR spectroscopy. Adsorption affinity, local polarity, and radical concentration inside the pores are quantified, revealing hydrogen bonding, dipolar, and π‐π interactions that govern guest binding, which ...
Sebastian Michler, Simona Bassoli, Luisa Voigt, Makhily Diaby, Dariush Hinderberger, Frederik Haase   +5 more
wiley   +1 more source

Linear Algebra of Magic Squares

, 2008
A magic square M is an n-by-n array of numbers whose rows, columns, and the two diagonals sum to µ called the magic sum. If all the diagonals including broken diagonals sum to µ then the magic square is said to be pandiagonal.
Michael Lee, Elizabeth Love, Advisor Dr, Sivaram K. Narayan, Elizabeth Wascher   +4 more
core  

Super‐Electron‐Donor Polymers: From Monomer Design to Redox Functionality

Small, EarlyView.
2,2'‐Bipyridinylidenes are known for their “super‐electron‐donor” properties and have therefore been used beyond the field of organic synthesis. Their two‐electron redox process at a low potential of 1.8 V vs. Li/Li+ makes them attractive negative p‐type electrode‐active materials.
Luisa Rzesny, Aswadh Shyma Sajeevan, Caroline Schmidt, Johannes Lahr, Christoph Lorenz, Mathias Hermann, Nicolas Dupré, Stéven Renault, Philippe Poizot, Birgit Esser   +9 more
wiley   +1 more source

Highlights of MAGIC results

, 2008
MAGIC is the largest Cherenkov telescope currently operating and is in full operation since September 2004. Since then, it is providing a full wealth of exciting new physics results from its observations in the very high energy (VHE) region of galactic ...
PASCOLI, DONATELLA, MAGIC COLLABORATION, BASTIERI, DENIS   +2 more
core  

Beyond Integer Charge Transfer: A New Design Rule Linking Dopant Strength and Counterion Separation to Efficient Carrier Transport in Conjugated Polymers

Small, EarlyView.
In this Research Article, the authors introduce a new design principle for doped conjugated polymers, showing that dopant energy depth relative to the host polymer (ΔE) can be leveraged to minimize Coulomb interactions and boost conductivity. This discovery offers a new and simple strategy to optimize the performance of organic electronics for everyday
Muhamed Duhandžić, Subhayan Samanta, Dhandapani Venkataraman, Zlatan Akšamija   +3 more
wiley   +1 more source

How We Simulate Nanopores

Small Methods, EarlyView.
Nanopore technology has revolutionized single‐molecule sensing, yet it suffers from an inherent interpretive challenge. Molecular dynamics has emerged as a go‐to method for determining the relationship between the structure of translocating molecules and the nanopore current signals.
Behzad Mehrafrooz, Xavier Mleziva, Meng Xu, Melika Shekari, Christopher Maffeo, Aleksei Aksimentiev   +5 more
wiley   +1 more source

Overcoming Imaging Limitations: 4D‐STEM Pair Distribution Function for Resolving Structure of Supported Pt55 and Pt200 Clusters

Small Methods, EarlyView.
4D‐STEM based electron diffraction analysis has been developed to characterize the average structure of sensitive, dynamic ultrasmall supported Pt clusters at variable temperature by pair distribution analysis (PDF). For Pt55 and Pt200 the best fit is obtained for a multiply twinned decahedral configuration.
Ajai Raj Lakshmi Nilayam, Ramin Shadkam, Sangjun Kang, Horst Hahn, Di Wang, Christian Kübel   +5 more
wiley   +1 more source