Results 71 to 80 of about 2,231,198 (301)

Block Card 1845 Fulton Lucas Road

open access: yes, 1990
This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Dwelling | Harding (Ohio : Township) | 1845 Fulton-Lucas Road ...
Lucas County (Ohio). Auditor's Office
core  

Diophantine triples in a Lucas-Lehmer sequence [PDF]

open access: yes, 2018
In this paper, we define a Lucas-Lehmer type sequence denoted by (Ln)1n=0, and show that there are no integers 0 < a < b < c such that ab + 1, ac + 1 and bc + 1 all are terms of the sequence. Keywords: Diophantine triples, Lucas-Lehmer sequences MSC:
Gueth, Krisztián
core   +1 more source

Multimodal Imaging of Hypoxia, Metabolism and pH in Feline Sarcoma Using Hyperpolarized 13C MRI and PET

open access: yesAdvanced Science, EarlyView.
This work presents a clinically deployable simultaneous PET/MRI workflow which integrates hyperpolarized 13C imaging of metabolism and extracellular pH with [18F]FMISO PET to characterize hypoxia, acidosis, and metabolic reprogramming in feline sarcoma.
Martin Grashei   +17 more
wiley   +1 more source

Horadam–Lucas Cubes

open access: yesAxioms
In this paper, we introduce a novel class of graphs referred to as the Horadam–Lucas cubes. This class extends the concept of Lucas cubes and retains numerous desirable properties associated with them.
Elif Tan   +2 more
doaj   +1 more source

On fourth-order jacobsthal quaternions

open access: yesJournal of Mathematical Sciences and Modelling, 2018
In this paper, we present for the first time a sequence of quaternions of order 4 that we will call the fourth-order Jacobsthal and the fourth-order Jacobsthal-Lucas quaternions. In particular, we are interested in the generating function, Binet formula,
Gamaliel Cerda-morales
doaj   +1 more source

Block Card 1625 Fulton Lucas Road

open access: yes, 1990
This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: barns | Harding (Ohio : Township) | Fulton Lucas Road (Lucas ...
Lucas County (Ohio). Auditor's Office
core  

An Engineered Supramolecular Pathway for Enhanced Electrochemiluminescence

open access: yesAdvanced Science, EarlyView.
A supramolecular electrochemiluminescent (ECL) system is presented in which cucurbit[7]uril (CB7) is covalently linked to [Ru(bpy)3]2+, forming a recognition‐responsive emitter. Host‒guest preorganization of tri‐n‐propylamine enables intramolecular ECL, boosting intensity by 162% compared to the standard system.
Maria Vittoria Balli   +7 more
wiley   +1 more source

Switching ATP‐Forming Phosphoryl‐Transfer Chemistry With a Restricted Set of Amino Acids

open access: yesAngewandte Chemie, EarlyView.
Constraints on amino acid composition relevant to prebiotic chemistry reshape enzyme chemistry by replacing the canonical mechanism within a conserved protein fold with a distinct ATP‐forming reaction, ADP disproportionation. Such constraints generate alternative catalytic solutions not observed in modern enzymes and point to chemically plausible early
Sota Yagi   +3 more
wiley   +2 more sources

Reference Electrode‐Free Nitrate Sensing via Differential Temperature‐Modulated Potentiometry in Printed Symmetric SC‐ISEs

open access: yesAdvanced Electronic Materials, EarlyView.
This work proposes and validates a method for measuring nitrate concentration with printed, solid‐state ion‐selective electrodes that does not require a stable reference electrode. The approach uses brief, localized heating pulses to generate a concentration‐dependent voltage response that is drift‐resilient and log‐linear from 0.1 to 100 mm, while ...
Lucas Lahann   +2 more
wiley   +1 more source

A Sequence Bounded Above by the Lucas Numbers

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In this work, we consider the sequence whosenthterm isthe number of h-vectors of length n. The set of integer vectors E(n)isintroduced. For, n>=2,the cardinality ofE(n)is the nthLucasnumber Lnisshowed.
Ali Aydoğdu   +2 more
doaj   +1 more source

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