Results 61 to 70 of about 242,259 (303)

Low‐Cost WS2 Photodetector on Water‐Soluble Paper for Transient Electronics

Advanced Functional Materials, EarlyView.
This study presents a transient WS2 photodetector fabricated on water‐soluble paper using simple mechanical abrasion and pencil drawing. The device demonstrates reliable photoresponse and mechanical flexibility. It dissolves in water within seconds after use, enabling material recovery and reuse.
Gulsum Ersu, Luke Doolan, Thomas Pucher, Jonathan N. Coleman, Andres Castellanos‐Gomez   +4 more
wiley   +1 more source

On the Hyperbolic Leonardo and Hyperbolic Francois Quaternions

Journal of New Theory, 2023
In this paper, we present a new definition, referred to as the Francois sequence, related to the Lucas-like form of the Leonardo sequence. We also introduce the hyperbolic Leonardo and hyperbolic Francois quaternions.
Paula Maria Machado Cruz Catarino, Orhan Dışkaya, Hamza Menken   +2 more
doaj   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

On the Lucas property of linear recurrent sequences [PDF]

International Journal of Number Theory, 2016
Let [Formula: see text] be an arithmetic function. [Formula: see text] has Lucas property if for any prime [Formula: see text] and [Formula: see text], where [Formula: see text], [Formula: see text] In this paper, we discuss the Lucas property of Fibonacci sequences and Lucas numbers. Meanwhile, we find some other interesting results.
Tianxin Cai, Hao Zhong
openaire   +3 more sources

Bioengineering a Patient‐Derived Vascularized Lung Tumor‐on‐Chip Model to Decipher Immunomodulation by the Endothelium

Advanced Healthcare Materials, EarlyView.
Most in vitro cancer models lack cellular diversity, functional complexity, and clinical relevance. This work highlights the generation of an innovative dynamic tetraculture with autologous patient‐derived cells within a vascularized tumor‐on‐chip, as well as the recapitulation of endothelial anergy features induced by the tumor microenvironment ...
Christine Lansche, Ségolène Ladaigue, Giacomo Gropplero, Nicolas Zimmermann, Martin Nurmik, Irina Veith, Manh‐Louis Nguyen, Solenn Brosseau, Nicolas Poté, Pierre Mordant, Arnaud Roussel, Fathia Mami‐Chouaib, Fatima Mechta‐Grigoriou, Gérard Zalcman, Fabrice Soncin, Stéphanie Descroix, Maria Carla Parrini   +16 more
wiley   +1 more source

Copper ratio obtained by generalizing the Fibonacci sequence

AIP Advances
In this study, we define a new generalization of the Fibonacci sequence that gives the copper ratio, and we will call it the copper Fibonacci sequence. In addition, inspired by the copper Fibonacci definition, we also define copper Lucas sequences, and ...
Engin Özkan, Hakan Akkuş
doaj   +1 more source

On the prime density of Lucas sequences [PDF]

Journal de Théorie des Nombres de Bordeaux, 1996
By the prime density of an integer sequences \((A_n)_{n \geq 0}\) we mean the natural density of the set of all prime numbers dividing \(A_n\) for some \(n \geq 0\). Let \(D>1\) be a square-free integer such that the real quadratic field \(\mathbb{Q} (\sqrt D)\) has a fundamental unit with norm \(-1\), and let \(\varepsilon\) be any unit of \(\mathbb{Q}
openaire   +2 more sources

Imiquimod‐Loaded Phospholipid‐Free Small Unilamellar Vesicles Activate the Tumor Immune Microenvironment to Treat Liver Cancer and Liver Metastases

Advanced Healthcare Materials, EarlyView.
Imiquimod‐loaded nanoparticles (PFSUV‐IMQ) are found to decrease liver metastasis and liver tumor burden when administered intravenously. Flow cytometry, RNA‐seq and various experiments show that the anti‐tumor response is immune‐mediated by activating dendritic cells resulting in increased CD8 T cell infiltration and activity.
Vanessa Chan, Hsin‐Mei Lee, Haruka Takata, Sheng‐Liang Cheng, Yu‐Ting Yen, Lisa Pfeifer, Luke Rushton, Po‐Han Chao, Feng Zhao, Chun Yat Ong, Nojoud Al‐Fayez, Tatsuhiro Ishida, Yunching Chen, Shyh‐Dar Li   +13 more
wiley   +1 more source

On a unified approach to homogeneous second-order linear difference equations with constant coefficients and some applications

Special Matrices
In this article, we establish a new closed formula for the solution of homogeneous second-order linear difference equations with constant coefficients by using matrix theory.
Kaddoura Issam, Mourad Bassam
doaj   +1 more source

Quaternion-Type Catalan Transforms of the ρ-Fibonacci and ρ-Lucas Numbers

Journal of Mathematics, 2023
In this paper, we define a new sequence called the quaternion-type Catalan sequence and give generating function, exponential representation, quaternionic Catalan matrix and its some properties.
Kübra Gül
doaj   +1 more source