Results 11 to 20 of about 273,000 (203)

The occurrence of prime numbers revisited

open access: yesGECONTEC: Revista Internacional de Gestión del Conocimiento y la Tecnología, 2023
Based on an arithmetical and autocatalytic approach, the authors propose a solution for the occurrence of prime numbers. Exact arithmetical calculations are provided for: the closest prime to any given positive integer (or any number of bigger or ...
Ernesto Tapia Moore, José Tapia Yañez
doaj   +7 more sources

Assessment of two portable glucometers and an automated hematology analyzer for the monitoring of diabetes in cat

open access: yesVeterinary Research Notes, 2023
Objective: The study aimed to assess two portable glucometers and an automated hematology analyzer for monitoring diabetes in cats. Glucose concentrations in the cats' blood samples were determined, and the factors influencing the glucose level were
Sharmin Akter   +4 more
doaj   +1 more source

Influence of Tweets Indicating False Rumors on COVID-19 Vaccination: Case Study

open access: yesJMIR Formative Research, 2023
BackgroundAs of December 2022, the outbreak of COVID-19 showed no sign of abating, continuing to impact people’s lives, livelihoods, economies, and more. Vaccination is an effective way to achieve mass immunity. However, in places
Mai Hirabayashi   +3 more
doaj   +1 more source

Determination of frequency distribution of oocytes at different maturity phases in the ovaries of roach, Rutilus rutilus (L.) [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2003
Background. The frequency distribution of oocytes at different maturity phases can be used to assess environmental effects on gametogenesis in teleosts.
W. Kopiejewska
doaj   +3 more sources

For the people by the people: Citizen science web interface for real‐time monitoring of tick risk areas in Finland

open access: yesEcological Solutions and Evidence, 2023
Ticks and tick‐borne diseases (TBDs) form a significant and growing threat to human health and well‐being in Europe, with increasing numbers of tick‐borne encephalitis (TBE) and Lyme borreliosis cases being reported during the past few decades ...
Jani J. Sormunen   +5 more
doaj   +1 more source

Universal characteristics of fractal fluctuations in prime number distribution [PDF]

open access: yes, 2014
The frequency of occurrence of prime numbers at unit number spacing intervals exhibits self-similar fractal fluctuations concomitant with inverse power law form for power spectrum generic to dynamical systems in nature such as fluid flows, stock market ...
Selvam, A.M.
core   +1 more source

Non-Rectangular Convolutions and (Sub-)Cadences with Three Elements [PDF]

open access: yes, 2019
The discrete acyclic convolution computes the 2n-1 sums sum_{i+j=k; (i,j) in [0,1,2,...,n-1]^2} (a_i b_j) in O(n log n) time. By using suitable offsets and setting some of the variables to zero, this method provides a tool to calculate all non-zero sums ...
Funakoshi, Mitsuru, Pape-Lange, Julian
core   +2 more sources

On the Occurrence of large gaps between prime numbers [PDF]

open access: yesGlasgow Mathematical Journal, 1979
Let pn denote the nth prime number. Erdös asked whetherfor some constant c<1.
openaire   +2 more sources

Identifying the Riemann zeros by periodically driving a single qubit [PDF]

open access: yes, 2019
The Riemann hypothesis, one of the most important open problems in pure mathematics, implies the most profound secret of prime numbers. One of the most interesting approaches to solve this hypothesis is to connect the problem with the spectrum of the ...
Ai, Ming-Zhong   +9 more
core   +3 more sources

The occurrence of prime numbers revisited

open access: yesGECONTEC: Revista Internacional de Gestión del Conocimiento y la Tecnología, 2016
Based on an arithmetical and autocatalytic approach, the authors propose a solution for the occurrence of prime numbers. Exact arithmetical calculations are provided for: the closest prime to any given positive integer (or any number of bigger or smaller
Ernesto Tapia Moore, José Tapia Yañez
doaj   +4 more sources

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