Results 61 to 70 of about 132,858 (359)
Some congruences related to a congruence of Van Hamme [PDF]
Integral transforms and special functions, 2019 We establish some supercongruences related to a supercongruence of Van Hamme, such as where p is an odd prime and is the th Euler number. Our proof uses some congruences of Z.-W.
Victor J. W. Guo, Ji-Cai Liu
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Congruences involving F-partition functions
International Journal of Mathematics and Mathematical Sciences, 1994 The primary goal of this note is to prove the congruence ϕ3(3n+2)≡0(mod3), where ϕ3(n) denotes the number of F-partitions of n with at most 3 repetitions. Secondarily, we conjecture a new family of congruences involving cϕ2(n), the number of F-partitions
James Sellers
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Advanced Functional Materials, EarlyView.The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner +4 more
wiley +1 more source
Congruences and Trajectories in Planar Semimodular Lattices
Discussiones Mathematicae - General Algebra and Applications, 2018 A 1955 result of J. Jakubík states that for the prime intervals p and q of a finite lattice, con(p) ≥ con(q) iff p is congruence-projective to q (via intervals of arbitrary size).
Grätzer G.
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Advanced Functional Materials, EarlyView.This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker +5 more
wiley +1 more source
Ambidextrous Leadership and Employee Work Outcomes: A Paradox Theory Perspective
Frontiers in Psychology, 2020 Numerous studies have examined the influence of ambidextrous leadership on employee work outcomes, but few have explored the issue through the congruence or incongruence of two seemingly conflicting leadership styles.
Zhuopin Guo +3 more
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How well are citizens represented by their governments? Issue congruence and inequality in Europe
European Political Science Review, 2019 This study analyses congruence across various issues in 16 European democracies. Making use of public opinion and expert survey data, our analyses show that congruence between the policy preferences of citizens and the stances of governments is much more
J. Rosset, Christian Stecker
semanticscholar +1 more source
The Effect of Amino Acids on the Formation of Amorphous Calcium Carbonate Nanoparticles
Advanced Functional Materials, EarlyView.Biomineral formation often proceeds via the assembly of amorphous calcium carbonate (ACC) nanoparticles with narrow size distributions. Using in situ SAXS coupled to a stopped‐flow device, we follow synthetic ACC formation with a 10 ms time resolution and show that amino acids narrow the size distribution at low supersaturation, highlighting their key ...
Lucas Kuhrts +10 more
wiley +1 more source
The Model of Romanian Parliamentarism
Sfera Politicii, 2021 The article realizes, in a didactic manner, an analysis of the post-communist Romanian parliament, offering a revealing image of the institutional design, but also of the functional dimension of the legislature.
Alexandru Radu, Daniel Buti
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