Results 81 to 90 of about 9,463,328 (331)

Metal–Organic Framework‐Based Antimicrobial Touch Surfaces to Prevent Cross‐Contamination

open access: yesAdvanced Materials, EarlyView.
A MOF‐based antimicrobial door handle cover is developed. It completely inhibits the cross‐contamination of Gram‐positive bacterial species (Staphylococcus aureus, and Enterococcus faecalis), Gram‐negative bacterial species (Escherichia coli, Pseudomonas aeruginosa, and Acinetobacter baumannii), and fungi (Candida albicans). Abstract Infection diseases
Javier Fonseca   +8 more
wiley   +1 more source

Congruences from $q$-Catalan Identities [PDF]

open access: yesTransactions on Combinatorics, 2016
In this paper‎, ‎by studying three $q$-Catalan identities given by Andrews‎, ‎we arrive at a certain number of congruences‎. ‎These congruences are all modulo $Phi_n(q)$‎, ‎the $n$-th cyclotomic polynomial or the related functions and modulo $q$-integers‎
Qing Zou
doaj   +1 more source

Catalan numbers revisited

open access: yesJournal of Combinatorial Theory, Series A, 1994
AbstractThis paper discusses a method of proving that the number of well-formed orderings of n open and n closed parentheses is (2nn(n + 1). More details are provided by D. S. Rubenstein [“Catalan Numbers Revisited and Generalized Catalan Numbers,” 1992].
openaire   +2 more sources

Determinants of (generalised) Catalan numbers [PDF]

open access: yesJournal of Statistical Planning and Inference, 2010
AmS-TeX, 16 pages; minor ...
openaire   +4 more sources

Supramolecular Design of Polymeric Random Lasers

open access: yesAdvanced Optical Materials, EarlyView.
This research investigates the application of PolyHIPE scaffolds as scattering media inRLs. By modifying the scaffold's morphology, pore size, and surface chemistry, the dye distribution within the material is precisely controlled, achieving a tunable laser threshold.
Junyang Chen   +6 more
wiley   +1 more source

Translation and cultural adaptation of the pectus excavatum evaluation questionnaire to Spanish and Catalan

open access: yesJournal of Patient-Reported Outcomes, 2022
Purpose Pectus excavatum (PE) is the most common congenital chest wall deformity. It can have a negative effect in exercise tolerance. However, cosmetic features are the most frequent concerns in these patients.
Irene de Haro Jorge   +5 more
doaj   +1 more source

Partition Statistics Equidistributed with the Number of Hook Difference One Cells [PDF]

open access: yes, 2014
Let $\lambda$ be a partition, viewed as a Young diagram. We define the hook difference of a cell of $\lambda$ to be the difference of its leg and arm lengths. Define $h_{1,1}(\lambda)$ to be the number of cells of $\lambda$ with hook difference one.
Huang, Jiaoyang   +3 more
core  

Tailored Crystallization Dynamics for Efficient and Stable DMSO‐Free Tin Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
In this work, the authors investigated the crystallization process of tin perovskites in a DMSO‐free solvent system using in situ PL technique. The authors discovered that a synergistic approach effectively facilitates the formation of high‐quality DMSO‐free tin perovskite films by modulating the emergence of crystallites and the aggregation process ...
Shengnan Zuo   +22 more
wiley   +1 more source

Fedosov differentials and Catalan numbers [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2010
The aim of the paper is to establish a non-recursive formula for the general solution of Fedosov's 'quadratic' fixed-point equation (Fedosov 1994 J. Diff. Geom. 40 213–38). Fedosov's geometrical fixed-point equation for a differential is rewritten in a form similar to the functional equation for the generating function of Catalan numbers.
openaire   +2 more sources

Oxygen Vacancy Formation at Metal‒TiO₂ Interface Yielding Enhanced Photocatalytic Hydrogen Generation

open access: yesAdvanced Science, EarlyView.
In this work, the oxygen vacancy formation is reported at the Au‐TiO2 interface in strong metal‐support interaction (SMSI) photocatalyst. The oxygen vacancies faciliate electron transfer and favor the adsorption of water and methanol at photocatalyst surface, thus enhancing the kinetic of photocatalytic hydrogen generation. The SMSI concept is extended
Vien‐Duong Quach   +12 more
wiley   +1 more source

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