Results 21 to 30 of about 231 (108)

Análisis predictivo de casos confirmados de la COVID-19 en el Perú basado en el modelo de regresión no lineal de Gompertz usando datos de casos fatales

open access: yesTECNIA, 2021
Este estudio tiene como objetivo evaluar el futuro de los casos confirmados de Covid-19 en el Perú, utilizando el modelo de regresión no lineal de Gompertz. Los datos utilizados están basados en los informes oficiales del Ministerio de Salud del Perú (MINSA).
Marina Gabriela Sadith Pérez Paredes   +2 more
openaire   +3 more sources

Assessing senescence patterns in populations of large mammals

open access: yesAnimal Biodiversity and Conservation
Evaluación de pautas de senescencia en poblaciones de grandes mamíferos Por lo general, para estudiar el papel que desempeña la senescencia en la supervivencia, ya sea en humanos, en animales de laboratorio o en animales cautivos.
J.-M. Gaillard   +3 more
doaj   +1 more source

Teste de Igualdade de Parâmetros nas Curvas Crescimento de Frangos da Raça Castellana Negra

open access: yesSemina: Ciências Exatas e Tecnológicas
As curvas de crescimento e o entendimento acerca do dimorfismo sexual permite obter informações para aumentar a produtividade na indústria avícola. O objetivo deste estudo é descrever o crescimento de frangos machos e fêmeas da raça Castella Negra por ...
Rafaela de Carvalho Salvador   +4 more
doaj   +1 more source

Correlación del Crecimiento de Pseudomonas fluorescens en la Producción de Polihidroxialcanoatos de Cadena Media (PHA MCL) mediante Modelos Primarios de Gompertz, Logístico y Baranyi [PDF]

open access: yesInformación tecnológica, 2016
espanolEn este trabajo se analizan modelos para correlacionar el crecimiento de Pseudomonas fluorescens, un bacilo Gram-negativo, en la produccion de polihidroxialcanoatos de cadena media (PHAMCL). Se evaluo la melaza y la glucosa como fuente de carbono, por medio del crecimiento y produccion del biopolimero; se encontro que la melaza a concentraciones
Vanegas, Diana M, Ramírez, Margarita E
openaire   +2 more sources

Parâmetros genéticos da taxa de maturação e do peso assintótico de fêmeas da raça Nelore Genetic parameters of maturation rate and asymptotic weight of Nelore females

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2005
Utilizaram-se 14.563 pesagens de 1158 fêmeas da raça Nelore, nascidas entre 1984 e 1995, pertencentes a 10 fazendas, distribuídas em sete estados do Brasil.
A. Del V. Garnero   +4 more
doaj   +1 more source

Monitoring population extinction risk with community science data

open access: yesJournal of Applied Ecology, Volume 62, Issue 9, Page 2133-2147, September 2025.
Our modelling framework provides a robust, computationally efficient and easy‐to‐apply tool for monitoring local persistence probability that can support global conservation efforts. This will complement the monitoring of species population viability in places where standardized monitoring is still lacking, but community science observations are common.
Orlando Acevedo‐Charry   +8 more
wiley   +1 more source

Evaluación de la cinética de crecimiento de saccharomyces cerevisiae utilizando un medio de cultivo a base de melaza de caña y suero lácteo

open access: yesAgroindustrial Science, 2015
El presente trabajo de investigación tuvo como objetivo evaluar los residuos principales provenientes de la industria azucarera y lechera, como son la melaza de caña y suero lácteo como sustrato para la producción de Saccharomyces cerevisiae, teniendo ...
Julio Aguilar   +8 more
doaj   +1 more source

Fermentation and leaching of the organic fraction of municipal solid waste to improve methane production

open access: yesJournal of Chemical Technology &Biotechnology, Volume 100, Issue 5, Page 967-977, May 2025.
Abstract Background The anaerobic digestion of soluble substances extracted from the organic fraction of municipal solid waste (OFMSW) results in an enhanced rate and production of methane. However, the influence of substrate fermentation and subsequent leaching on methane output has yet to be investigated.
Hamilton G. Mosquera‐Toscano   +3 more
wiley   +1 more source

Physiological thermal niches, elevational ranges and thermal stress in dendrobatid frogs: An integrated approach

open access: yesJournal of Biogeography, Volume 51, Issue 10, Page 1880-1893, October 2024.
Abstract Aim We investigated the relationship between thermal physiology, elevational distribution and thermal stress among nine closely related dendrobatid frogs during their aquatic stage by employing an integrated approach, combining thermal physiology, environmental temperature modelling and predictive assessments of current and future exposure to ...
Pol Pintanel   +5 more
wiley   +1 more source

Growth patterns of male and female of Nile tilapia (Oreochromis niloticus) GIFT variety
Padrões de crescimento de machos e fêmeas de tilápias do Nilo (Oreochromis niloticus) da variedade GIFT

open access: yesSemina: Ciências Agrárias, 2013
The aim of this work was to estimate the growth pattern of GIFT tilapia using nonlinear model Gompertz and verifying the differences between growth pattern of males and females. The Gompertz model has been tested within eight variations.
Aline Mayra da Silva Oliveira   +6 more
doaj   +1 more source

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