Results 11 to 20 of about 331 (95)
O objetivo deste trabalho foi desenvolver uma escala diagramática para avaliação da severidade da mancha ocular, causada por Kabatiella zeae, em folhas de milho, considerando os limites de severidade mínima e máxima da doença e os níveis intermediários ...
Rubia Cristiani Camochena +2 more
doaj +1 more source
Invited review: Epidemics on social networks [PDF]
Since its first formulations almost a century ago, mathematical models for disease spreading contributed to understand, evaluate and control the epidemic processes.They promoted a dramatic change in how epidemiologists thought of the propagation of ...
Kuperman, Marcelo N.
core +4 more sources
O objetivo deste trabalho foi comparar métodos de caracterização da resistência do cacaueiro (Theobroma cacao) à podridão-parda (Phytophthora palmivora).
Elisa Susilene Lisboa dos Santos +3 more
doaj +1 more source
Extinction and recurrence of multi-group SEIR epidemic [PDF]
In this paper, we consider a class of multi-group SEIR epidemic models with stochastic perturbations. By the method of stochastic Lyapunov functions, we study their asymptotic behavior in terms of the intensity of the stochastic perturbations and the ...
Anderson +55 more
core +1 more source
Uma escala diagramática para quantificar a severidade da bacteriose em folhas de pessegueiro (Prunus persica), causada por Xanthomonas arboricola pv. pruni, foi desenvolvida e validada.
Idemir Citadin +5 more
doaj +1 more source
Diagrammatic scale for assessment of Alternaria Brown Spot of citrus [PDF]
Com o objetivo de padronizar as avaliações da severidade da Mancha Marrom de Alternaria, foi desenvolvida uma escala diagramática considerando a distribuição, a forma, a freqüência das lesões e os níveis mínimo e máximo de severidade encontrados em campo.
AMORIM, Lilian +3 more
core +2 more sources
The Covid-19 pandemic: basic insights from basic mathematical models [PDF]
Mathematical models for the spread of infectious diseases have a long history. From the start of the Covid-19 pandemic, there was a huge public interest in applying such models, since they help to understand general features of epidemic spread and ...
Gokhale, C. +3 more
core +2 more sources
A diagrammatic scale with six levels (0.1-3.0; 3.1-6.0; 6.1-12.0; 12.1-18.0;18.1-30.0; 30.1-49.0%) was developed, compared, and evaluated along with two other scales to measure the severity of brown eye spots in coffee trees leaves.
Adriano Augusto de Paiva Custódio +5 more
doaj +1 more source
Ecoenzymes as Indicators of Compost to Suppress Rhizoctonia solani [PDF]
Reports of disease suppression by compost are inconsistent likely because there are no established standards for feedstock material, maturity age for application, and application rate.
Fang, Lynn +2 more
core +2 more sources
A diagramatic scale to quantify severity of antracnose in Rubus glaucus Benth
: Rubus glaucus Benth, commonly referred to as mora de Castilla, is affected by Colletotrichum acutatum, as it induces anthracnose in many of the plant organs.
Paula Andrea González Patiño +2 more
doaj +1 more source

