Results 51 to 60 of about 127,416 (338)
Bioeconomic Perspectives to an Optimal Control Dengue Model [PDF]
Int. J. Comput. Math. 90 (2013), no. 10, 2126--2136, 2013 A model with six mutually-exclusive compartments related to dengue is studied. Three vector control tools are considered: insecticides (larvicide and adulticide) and mechanical control. The basic reproduction number associated to the model is presented. The problem is studied using an optimal control approach.
arxiv +1 more source
Advanced Science, EarlyView.The genome of Megachile rotundata, an extensively managed solitary pollination bee species, has been sequenced, covering 280.68 Mb and predicting 10 701 genes. The study reveals significant expansions of the Toll gene family and their abundant expression in diapause prepupae, highlighting enhanced immune responses during diapause. This genome serves as
Rangjun Shi +8 more
wiley +1 more source
Integrated Environmental Assessment and Management, Volume 19, Issue 1, Page 213-223, January 2023., 2023 Abstract Developing population models for assessing risks to terrestrial plant species listed as threatened or endangered under the Endangered Species Act (ESA) is challenging given a paucity of data on their life histories. The purpose of this study was to develop a novel approach for identifying relatively data‐rich nonlisted species that could serve
Pamela Rueda‐Cediel +5 more
wiley +1 more source
Advanced Science, EarlyView.Two closely related whitefly species, Trialeurodes vaporariorum and Bemisia tabaci, are found to each possess a plant‐derived TLP gene, but with entirely different functions. This finding of functional divergence challenges the notion that HGT genes maintain similar functions across species and shows that they can follow unique evolutionary paths that ...
Yuan Hu +12 more
wiley +1 more source
Integrated Environmental Assessment and Management, Volume 19, Issue 1, Page 202-212, January 2023., 2023 Abstract In regulatory risk assessment, surrogate species of fish, aquatic invertebrates, and primary producers are tested to assess toxicity and subsequently the risk of pesticides to freshwater biota. This study evaluates whether the standard, surrogate test species (mostly temperate in latitudinal distribution) used in many parts of the world are ...
Gustavo S. Santos +5 more
wiley +1 more source
Acta Biológica Colombiana, 2019 The study aimed to determine the toxicity of lambda-cyhalothrin, alpha-cypermethrin, and deltamethrin in L. longipalpis, through concentration-mortality bioassays.
Erika Santamaria +1 more
doaj +1 more source
Insecticide susceptibility of house flies (Musca domestica) from a livestock farm in Tyumen region, Russia [PDF]
Bulgarian Journal of Veterinary Medicine, 2019 The susceptibility of the field populations of the house fly Musca domestica L. (Diptera:Muscidae) from a livestock farm of the Tyumen region, Russia, to six insecticides (deltamethrin, cypermethrin, thiamethoxam, permethrin, fipronil, chlorfenapyr) is ...
M. A. Levchenko +3 more
doaj +1 more source
Stringency and dissimilarity of Maximum Residue Levels affect bilateral agri‐food trade stability
Applied Economic Perspectives and Policy, EarlyView.Abstract Food standards are rising in both prevalence and stringency. They protect consumers and may enhance demand stability but also pose compliance challenges to producers, with ambiguous effects on the stability of trade relationships. We analyze the impact of importers' Maximum Residue Levels (MRLs) along with bilateral MRL dissimilarity between ...
Helena Engemann +2 more
wiley +1 more source
Integrated Environmental Assessment and Management, Volume 19, Issue 1, Page 175-190, January 2023., 2023 Abstract Decision‐making for pesticide registration by the US Environmental Protection Agency (USEPA) relies upon crop‐specific scenarios in a tiered framework. These standard modeling scenarios are stated to represent “…sites expected to produce runoff greater than would be expected at 90% of the sites for a given crop/use.” This study developed a ...
Amy Ritter +3 more
wiley +1 more source