Results 31 to 40 of about 109 (103)
Searching for semifield flocks
Discrete Mathematics, 2002 In the projective space \(PG(3,q)\) let \(K\) be a quadratic cone with vertex \(v\) ; a flock \(\mathcal {F}\) of \(K\) is a set of \(q\) disjoint conics partitioning \ \(K \setminus \{ v \}\). The interest in flocks is due to their links with many geometric objects. For instance a spread (i.e.
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Journal of Tropical Medicine, Volume 2025, Issue 1, 2025.Due to the increasing resistance to synthetic insecticides and the proliferation of resistant strains of malaria vectors, plant‐derived essential oils (EOs) are gaining prominence as an alternative for controlling Anopheles gambiae s.l. larvae.
Getnet Atenafu, Netuhsew Atnaf, Wei Wang
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A symbiotic mosquito‐gut bacterium for flavivirus control
Clinical and Translational Medicine, Volume 14, Issue 12, December 2024.Abstract Dengue virus (DENV) and Zika virus (ZIKV) have emerged as major global public health challenges, causing numerous infections and fatalities each year. However, current measures, including vaccines and treatments, are often limited or ineffective.
Jinglin Wang +6 more
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On the maximum field of linearity of linear sets
Bulletin of the London Mathematical Society, Volume 56, Issue 11, Page 3300-3315, November 2024.Abstract Let V$V$ denote an r$r$‐dimensional Fqn$\mathbb {F}_{q^n}$‐vector space. For an m$m$‐dimensional Fq$\mathbb {F}_q$‐subspace U$U$ of V$V$, assume that dimq⟨v⟩Fqn∩U⩾2$\dim _q \left(\langle {\bf v}\rangle _{\mathbb {F}_{q^n}} \cap U\right) \geqslant 2$ for each nonzero vector v∈U${\bf v}\in U$. If n⩽q$n\leqslant q$, then we prove the existence of
Bence Csajbók +2 more
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Pest Management Science, Volume 80, Issue 6, Page 2851-2859, June 2024.The combined application of a baculovirus (Trichoplusia ni Hübner (Lepidoptera: Noctuidae), T. ni single nucleopolyhedrovirus, TniSNPV) and Beauveria bassiana against the cabbage looper Trichoplusia ni was not more effective compared to singly applied TniSPNV.
Pauline S Deschodt, Jenny S Cory
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Integrated Environmental Assessment and Management, Volume 20, Issue 3, Page 780-793, May 2024.The introduction of intermediate tiers in the environmental risk assessment of plant protection products for soil organisms can help to reduce uncertainties in the risk assessment and serve as a bridge between the Tier 1 and higher‐tier risk assessment.
Gregor Ernst +17 more
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The BEL-rank of finite semifields [PDF]
Designs, Codes and Cryptography, 2016 In this article we introduce the notion of the BEL-rank of a finite semifield, prove that it is an invariant for the isotopism classes, and give geometric and algebraic interpretations of this new invariant. Moreover, we describe an efficient method for calculating the BEL-rank, and present computational results for all known small semifields.
Michel Lavrauw, John Sheekey
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Quantifying the impact of Psylliodes chrysocephala injury on the productivity of oilseed rape
Pest Management Science, Volume 80, Issue 5, Page 2383-2392, May 2024.The impact of Psylliodes chrysocephala adult and larval damage on oilseed rape yield was quantified to help develop improved thresholds for Integrated Pest Management. Up to 90% leaf area loss (simulated using a hole punch) during early growth did not affect yield.
Duncan J Coston +5 more
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Experimental arena settings might lead to misinterpretation of movement properties
Insect Science, Volume 31, Issue 1, Page 271-284, February 2024.Many studies examine movement in the laboratory and use different laboratory conditions, specifically arenas differing in structure, size, and shape. We examined the effect of the arena structure on movement properties using the red flour beetle as a model. The arena structure greatly affected movement properties, such as movement distance, turn angles,
Inon Scharf +2 more
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On the multiplication groups of semifields
European Journal of Combinatorics, 2010 The multiplication group of a loop is the permutation group generated by all right and left multiplications of the loop. The author uses finite semifields (i.e. non-associative division algebras) to obtain loops whose multiplication groups are between \(\text{PSL}(n,q)\) and \(\text{PGL}(n,q)\), for \(n\geq 3 \) and \(q^n>8\); the proof is based on ...
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