Results 81 to 90 of about 511 (174)

Perfect nonlinear binomials and their semifields

Finite Fields and Their Applications, 2009
The authors show that the binomial \[ F(x) = x^{p^s+1}-u^{p^k-1}x^{p^k+p^{2k+s}}\tag{b} \] is a perfect nonlinear (PN) mapping on \(\text{GF}(p^n)\) if \(p\) is an odd prime, \(n=3k\), \(\gcd(3,k) = 1\), \(k \equiv s \bmod 3\), \(n/\gcd(s,n)\) is odd and \(u\) is a primitive element of \(\text{GF}(p^n)\). The APN-ness of binomials of this shape for \(p=
Zhengbang Zha, Gohar M. Kyureghyan, Xueli Wang   +2 more
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Study on daily and reproduction activity of melon weevil, Acythopeus curvirostris persicus (Col.: Curculionidae), in Birjand, Iran [PDF]

نامه انجمن حشره‌شناسی ایران, 2013
Melon weevil, Acytopeus curvirostris persicus Thompson, is one of the most important pests of melons that is spread in the Middle East countries. In this study, diurnal and seasonal locomotor and flight activity of melon weevil were investigated under ...
K. Mohammadpour, P. Shishehbor, A. Avand-Faghih, M. S. Mosadegh   +3 more
doaj  

Recovery in environmental risk assessments at EFSA

EFSA Journal, 2016
EFSA performs environmental risk assessments (ERAs) for single potential stressors such as plant protection products, genetically modified organisms and feed additives and for invasive alien species that are harmful for plant health.
EFSA Scientific Committee
doaj   +1 more source

Male mating competitiveness of a Wolbachia-introgressed Aedes polynesiensis strain under semi-field conditions.

PLoS Neglected Tropical Diseases, 2011
BackgroundLymphatic filariasis (LF), a global public health problem affecting approximately 120 million people worldwide, is a leading cause of disability in the developing world including the South Pacific.
Eric W Chambers, Limb Hapairai, Bethany A Peel, Hervé Bossin, Stephen L Dobson   +4 more
doaj   +1 more source

Minimal Polynomials in Finite Semifields [PDF]

Journal of Siberian Federal University. Mathematics & Physics, 2018
Summary: We consider the classical notion of a minimal polynomial and apply it to investigations in finite semifields. A proper finite semifield has non-associative multiplication, that leads to a number of anomalous properties of one-side-ordered minimal polynomials.
openaire   +4 more sources

Dust drift during sowing of maize - effects on honey bees

Julius-Kühn-Archiv, 2012
Background: Bee poisoning incidents in southern Germany in 2008 revealed drift of insecticidal dusts of treated maize seed during sowing on adjacent areas with flowering bee forage plants as a considerable route of exposure.
Georgiadis, Pablo-Th., Pistorius, Jens, Heimbach, Udo, Stähler, Matthias, Schwabe, Kristin   +4 more
doaj   +1 more source

Oviposition Preferences of Aedes aegypti in Msambweni, Kwale County, Kenya. [PDF]

J Am Mosq Control Assoc, 2023
Musunzaji PS, Ndenga BA, Mzee S, Abubakar LU, Kitron UD, Labeaud AD, Mutuku FM.   +6 more
europepmc   +1 more source

Integration on topological semifields [PDF]

Pacific Journal of Mathematics, 1971
Anton, Howard, Pervin, W. J.
openaire   +2 more sources

Results of Ring-Testing of a Semifield Study Design to Investigate Potential Impacts of Crop Protection Products on Bumblebees (Hymenoptera, Apidae) and a Proposal of a Potential Test Design. [PDF]

Environ Toxicol Chem, 2022
Klein O, Roessink I, Elston C, Franke L, Jütte T, Knäbe S, Lückmann J, van der Steen J, Allan MJ, Alscher A, Amsel K, Cornement M, Exeler N, Guerola JS, Hodapp B, Jenkins C, Kimmel S, Tänzler V.   +17 more
europepmc   +1 more source

On translation hyperovals in semifield planes

Designs, Codes and Cryptography
In this paper we demonstrate the first example of a finite translation plane which does not contain a translation hyperoval, disproving a conjecture of Cherowitzo. The counterexample is a semifield plane, specifically a Generalised Twisted Field plane, of order $64$. We also relate this non-existence to the covering radius of two associated rank-metric
Kevin Allen, John Sheekey
openaire   +3 more sources