Results 21 to 30 of about 7,365 (273)

On $k$-Pell numbers which are sum of two Narayana's cows numbers [PDF]

open access: yesMathematica Bohemica
For any positive integer $k\geq2$, let $(P_n^{(k)})_{n\geq2-k}$ be the $k$-generalized Pell sequence which starts with $0,\cdots,0,1$ ($k$ terms) with the linear recurrence P_n^{(k)} = 2P_{n-1}^{(k)}+P_{n-2}^{(k)}+\cdots+P_{n-k}^{(k)}\quad\text{for} n\
Kouèssi Norbert Adédji   +2 more
doaj   +1 more source

Solving elliptic Diophantine equations by estimating linear forms in elliptic logarithms [PDF]

open access: yes, 1994
In order to compute all integer points on a Weierstraß equation for an elliptic curve E/Q, one may translate the linear relation between rational points on E into a linear form of elliptic logarithms.
Stroeker, R.   +6 more
core   +1 more source

On Terms of Generalized Fibonacci Sequences which are Powers of their Indexes

open access: yesMathematics, 2019
The k-generalized Fibonacci sequence ( F n ( k ) ) n (sometimes also called k-bonacci or k-step Fibonacci sequence), with k ≥ 2 , is defined by the values 0 , 0 , … , 0 , 1 of starting k its terms and such way ...
Pavel Trojovský
doaj   +1 more source

Perfect Powers in Smarandache Type Expressions [PDF]

open access: yes, 2004
The author showed that there are only finitely many numbers of the above form which are products of ...
Luca, Florian
core   +1 more source

Scaling, normalizing, and per ratio standards: an allometric modeling approach. [PDF]

open access: yes, 1995
The practice of scaling or normalizing physiological variables (Y) by dividing the variable by an appropriate body size variable (X) to produce what is known as a "per ratio standard" (Y/ X), has come under strong criticism from various authors.
R. L. Holder   +3 more
core   +1 more source

An Electrochemical Sensor Based on Allosteric Molecular Beacons for DNA Detection of Escherichia Coli. O157:H7

open access: yesInternational Journal of Electrochemical Science, 2013
In this work, an E-sensor basing on allosteric molecular beacons (aMBs) was designed for detection of Escherichia coli.(E. coli.)O157:H7 DNA. Without the target DNA, the aMB formed a stable hairpin structure which blocked the binding capability of the ...
Dongneng Jiang   +4 more
doaj   +1 more source

Quantitative estimates in stochastic homogenization for correlated coefficient fields

open access: yes, 2021
This paper is about the homogenization of linear elliptic operators in divergence form with stationaryrandom coefficients that have only slowly decaying correlations.
Gloria, Antoine   +5 more
core   +1 more source

Ranks of matrices of logarithms of algebraic numbers I: the theorems of Baker and Waldschmidt-Masser

open access: yes, 2023
Let $\mathscr{L}$ denote the $\mathbf{Q}$-vector space of logarithms of algebraic numbers. In this expository work, we provide an introduction to the study of ranks of matrices with coefficients in $\mathscr{L}$.
Dasgupta, Samit
core   +1 more source

The Role of Hematopoietic Cell Transplantation in Ataxia‐Telangiectasia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Ataxia‐telangiectasia (A‐T) is a DNA repair disorder characterized by neurodegeneration, immunodeficiency, and cancer predisposition. Hematopoietic cell transplantation (HCT) is an established therapy in related disorders such as Fanconi anemia (FA) and Nijmegen breakage syndrome (NBS), but its role in A‐T is unclear.
Laila Alkhouli   +3 more
wiley   +1 more source

Increased Risk of Sarcomas in Children With Congenital Anomalies: Findings From the Genetic Overlap Between Anomalies and Cancer in Kids (GOBACK) Registry Linkage Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric sarcomas are a heterogeneous group of tumors that contribute disproportionately to cancer mortality in children. Although congenital anomalies are among the strongest known risk factors for childhood cancer, the risk of specific sarcoma subtypes among affected individuals has not yet been thoroughly evaluated. Procedure We
Russ Wolters   +17 more
wiley   +1 more source

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