Results 1 to 10 of about 1,271,098 (314)

Mitochondrial Ca2+ remodeling is a prime factor in oncogenic behavior [PDF]

open access: yesFrontiers in Oncology, 2015
Cancer is sustained by defects in the mechanisms underlying cell proliferation, mitochondrial metabolism and cell death. Mitochondrial Ca2+ ions are central to all these processes, serving as signaling molecules with specific spatial localization ...
Alessandro eRimessi   +4 more
doaj   +2 more sources

On a conjecture on shifted primes with large prime factors [PDF]

open access: greenBulletin of the Australian Mathematical Society, 2022
AbstractLet $\mathcal {P}$ be the set of primes and $\pi (x)$ the number of primes not exceeding x. Let $P^+(n)$ be the largest prime factor of n, with the convention $P^+(1)=1$ , and $ T_c(x)=\#\{p\le x:p\in \mathcal {P},P^+(p-1)\ge p^c\}. $ Motivated by a conjecture of Chen and Chen [‘On the largest prime factor of shifted primes’, Acta Math.
Yuchen Ding
openalex   +6 more sources

Primes and Factors [PDF]

open access: bronzeNature, 1957
Factor Table for the First Ten Millions Containing the Smallest Factor of Every Number not Divisible by 2, 3, 5, or 7 between the Limits 0 and 10,017,000. By Derrick Norman Lehmer. Pp. xvi + 476. (New York and London: Hafner Publishing Company, 1956.) 160s. List of Prime Numbers from 1 to 10,006,721 By Derrick Norman Lehmer. Pp.
J. C. P. Miller
openalex   +2 more sources

The Median Largest Prime Factor

open access: yesJournal of Number Theory, 2013
Let $M(x)$ denote the median largest prime factor of the integers in the interval $[1,x]$. We prove that $$M(x)=x^{\frac{1}{\sqrt{e}}\exp(-\text{li}_{f}(x)/x)}+O_{\epsilon}(x^{\frac{1}{\sqrt{e}}}e^{-c(\log x)^{3/5-\epsilon}})$$ where $\text{li}_{f}(x ...
Naslund, Eric
core   +3 more sources

On the Universal Encoding Optimality of Primes

open access: yesMathematics, 2021
The factorial-additive optimality of primes, i.e., that the sum of prime factors is always minimum, implies that prime numbers are a solution to an integer linear programming (ILP) encoding optimization problem. The summative optimality of primes follows
Ioannis N. M. Papadakis
doaj   +1 more source

Explore the dominant factor in prime editing via a view of DNA processing

open access: yesSynthetic and Systems Biotechnology, 2023
Prime editing is a revolutionary gene-editing method that is capable of introducing insertions, deletions and base substitutions into the genome. However, the editing efficiency of Prime Editor (PE) is limited by the DNA repair process.
Zhimeng Xu   +6 more
doaj   +1 more source

New Semi-Prime Factorization and Application in Large RSA Key Attacks

open access: yesJournal of Cybersecurity and Privacy, 2021
Semi-prime factorization is an increasingly important number theoretic problem, since it is computationally intractable. Further, this property has been applied in public-key cryptography, such as the Rivest–Shamir–Adleman (RSA) encryption systems for ...
Anthony Overmars   +1 more
doaj   +1 more source

Some Observations on the Greatest Prime Factor of an Integer

open access: yesAnnales Mathematicae Silesianae, 2023
We examine the multiplicity of the greatest prime factor in k-full numbers and k-free numbers. We generalize a well-known result on greatest prime factors and obtain formulas related with the Riemann zeta function.
Jakimczuk Rafael
doaj   +1 more source

Assessment of the effect of environmental factors on fish growth using growth coefficients calculated from mathematical description of fish growth by means of polynomials [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1980
The paper describes a method for a mathematical characterisation of fish growth with the use of non-asymptotic growth models (bi- and trinomials). The method allows to obtain results equally accurate as when von Bertalanffy′s equation is used ...
J. Szypuła
doaj   +3 more sources

Graded weakly 1-absorbing prime ideals

open access: yesCubo, 2022
In this paper, we introduce and study graded weakly 1-absorbing prime ideals in graded commutative rings. Let $G$ be a group and $R$ be a $G$-graded commutative ring with a nonzero identity $1\neq0$.
Ünsal Tekir   +3 more
doaj   +1 more source

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