Results 41 to 50 of about 557,668 (129)

Commodity risk assessment of Petunia spp. and Calibrachoa spp. unrooted cuttings from Kenya

open access: yesEFSA Journal, Volume 22, Issue 4, April 2024.
Abstract The European Commission requested the EFSA Panel on Plant Health to evaluate the probability of entry of pests (likelihood of pest freedom at entry), including both regulated and non‐regulated pests, associated with unrooted cuttings of the genera Petunia and Calibrachoa produced under physical isolation in Kenya. The relevance of any pest for
EFSA Panel on Plant Health (PLH)   +33 more
wiley   +1 more source

Refined Goldbach conjectures with primes in progressions

open access: yes, 2018
We formulate some refinements of Goldbach's conjectures based on heuristic arguments and numerical data. For instance, any even number greater than 4 is conjectured to be a sum of two primes with one prime being 3 mod 4. In general, for fixed $m$ and $a,
Martin, Kimball
core  

Commodity risk assessment of Petunia spp. and Calibrachoa spp. unrooted cuttings from Guatemala

open access: yesEFSA Journal, Volume 22, Issue 1, January 2024.
Abstract The European Commission requested the EFSA Panel on Plant Health to evaluate the probability of entry of pests (likelihood of pest freedom at entry), including both, regulated and non‐regulated pests, associated with unrooted cuttings of the genera Petunia and Calibrachoa produced under physical isolation in Guatemala.
EFSA Panel on Plant Health (PLH)   +35 more
wiley   +1 more source

A Proof of Goldbach Conjecture by Using Goldbach Partition Model Table and Sieve Functions

open access: yes, 2015
Goldbach's Conjecture(GC) states that any even integer ≥ 4 can be represented by the sum of two prime numbers. This was conjectured by Christian Goldbach in 1742 and still remains unproved. In this thesis we proved GC by introducing Goldbach Partition Model Table(GPMT) and Sieve Functions(SFs).
openaire   +1 more source

Relationships between internalized stigma and depression and suicide risk among queer youth in the United States: a systematic review and meta-analysis. [PDF]

open access: yesFront Psychiatry, 2023
Williams DY   +8 more
europepmc   +1 more source

Immunopathological signatures in multisystem inflammatory syndrome in children and pediatric COVID-19. [PDF]

open access: yesNat Med, 2022
Sacco K   +64 more
europepmc   +1 more source

Combinatorial and Additive Number Theory Problem Sessions: '09--'19

open access: yes, 2019
These notes are a summary of the problem session discussions at various CANT (Combinatorial and Additive Number Theory Conferences). Currently they include all years from 2009 through 2019 (inclusive); the goal is to supplement this file each year. These
Miller, Steven J.
core  

On the existence of a non‐zero lower bound for the number ofGoldbach partitions of an even integer [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
The Goldbach partitions of an even number, given by the sums of two prime addends, form the nonempty set for all integers 2n with 2 ≤ n ≤ 2 × 1014. It will be shown how to determine by the method of induction the existence of a non‐zero lower bound for the number of Goldbach partitions of all even integers greater than or equal to 4.
openaire   +3 more sources

Sylvester: Ushering in the Modern Era of Research on Odd Perfect Numbers

open access: yes, 2003
In 1888, James Joseph Sylvester (1814-1897) published a series of papers that he hoped would pave the way for a general proof of the nonexistence of an odd perfect number (OPN).
Gimbel, Steven, Jaroma, John
core   +1 more source

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