Results 1 to 10 of about 76 (61)
An application of the theory of probabilities to the study of a priori pathometry.—Part I [PDF]
Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1916 Abstract Prefatory.—It is somewhat surprising that so little mathematical work should have been done on the subject of epidemics, and, indeed, on the distribution of diseases in general. Not only is the theme of immediate importance to humanity, but it is one which is fundamentally connected with numbers, while vast masses of ...
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Extinction and recurrence of multi-group SEIR epidemic [PDF]
, 2013 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 ...
Yang, Qingshan, Mao, Xuerong
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Ronald Ross and Hilda Hudson: a collaboration on the mathematical theory of epidemics [PDF]
, 2023 In 1916 Ronald Ross published the first of three papers entitled 'An Application of the Theory of Probabilities to the Study of a priori Pathometry', the second and third appearing the following year co-authored with Hilda Hudson.
Barrow-Green, June
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Net blotch of barley (Hordeum vulgare), caused by Drechslera teres and its effect on yield
Agronomía Mesoamericana, 2022 Introduction. Barley (Hordeum vulgare) net blotch (MR) causes yield losses estimated between 23 % to 44 %, as well as its malting quality. Objective. To evaluate over time the evolution of net blotch in different malting barley cultivars with and without
A. Petta, M. Lavilla
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Diagrammatic scale for the quantification of black spot severity in papaya leaves
Acta Scientiarum. Agronomy, 2023 Black spot (Asperisporium caricae) is one of the main foliar fungal diseases of papaya crops. This disease acts directly on leaves and fruits causing leaf area reduction and fruit deterioration.
Helenilson Oliveira Francelino +7 more
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An application of the theory of probabilities to the study of a priori pathometry.—Part III [PDF]
Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1917 Abstract (i) Variable Happening.—In Section IX, we commenced by touching upon the necessity of studying the effect of changes in the happening-element, but there dealt only with the case of hypometric happening. We now proceed to examine other changes in this element.
Ross, Ronald, Hudson, Hilda P.
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Efficient Bayesian inference for partially observed stochastic epidemics and a new class of semi-parametric time series models [PDF]
, 2007 This thesis is divided in two distinct parts. In the First part we are concerned with developing new statistical methodology for drawing Bayesian inference for partially observed stochastic epidemic models.
Kypraios, Theodoros
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Ciência Rural, 2006 Uma escala diagramática com cinco níveis: 0,11; 0,51; 2,4; 10,2 e 34,9% foi desenvolvida e validada para quantificar a severidade da mancha-de-micosferela do morangueiro, causado por Mycosphaerella fragariae (Tul.) Lin.
Sergio Miguel Mazaro +5 more
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Ciência Rural, 2008 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
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Pesquisa Agropecuária Brasileira, 2009 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
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