Results 1 to 10 of about 9,677,906 (304)
Analysis of logistic growth models [PDF]
Mathematical Biosciences, 2002 A variety of growth curves have been developed to model both unpredated, intraspecific population dynamics and more general biological growth. Most predictive models are shown to be based on variations of the classical Verhulst logistic growth equation. We review and compare several such models and analyse properties of interest for these.
Tsoularis, A., Wallace, J.
openaire +4 more sources
Estimating the drivers of urban economic complexity and their connection to economic performance
Royal Society Open Science, 2021 Estimating the capabilities, or inputs of production, that drive and constrain the economic development of urban areas has remained a challenging goal. We posit that capabilities are instantiated in the complexity and sophistication of urban activities ...
Andres Gomez-Lievano +1 more
doaj +1 more source
Forest Systems, 2021 Aim of the study: At current, forest management in the Eastern Mediterranean region is largely based on experience rather than on management plans. To support the development of such plans, this study develops and compares site index equations for pure ...
Tammam Suliman +4 more
doaj +1 more source
Plant Methods, 2022 Background Copy number determination is one of the first steps in the characterization of transgenic plant lines. The classical approach to this, Southern blotting, is time-consuming, expensive and requires massive amounts of high-quality genomic DNA ...
Jonas De Saeger +6 more
doaj +1 more source
Crystals, 2023 Congo red (CR) is a stable anionic diazo dye that causes allergic reactions with carcinogenic properties. The rapid removal of CR using cation-incorporated nanohydroxyapatite (pristine HAp: X (X = Fe, Ni, Zn, Co, and Ag)) was investigated.
Sandeep Eswaran Panchu +4 more
doaj +1 more source
Productive Ecosystems and the arrow of development
Nature Communications, 2021 As countries experience economic growth, diversification of economic activities may occur. Here, the authors develop a probabilistic model to examine the diversification of economic activities and how countries may move from small ecosystem products to ...
Neave O’Clery +2 more
doaj +1 more source
Interlaboratory Validation of Toxicity Testing Using the Duckweed Lemna minor Root-Regrowth Test
Biology, 2021 The common duckweed (Lemna minor), a freshwater monocot that floats on the surfaces of slow-moving streams and ponds, is commonly used in toxicity testing.
Jihae Park +14 more
doaj +1 more source
Craniofacial growth and SITAR growth curve analysis
European Journal of Orthodontics, 2021 Summary Background SITAR (SuperImposition by Translation And Rotation) is a shape invariant growth curve model that effectively summarizes somatic growth in puberty. Aim To apply the SITAR model to longitudinal mandibular growth data ...
Patcas, Raphael +5 more
openaire +4 more sources
Maize seedling emergence in response to climatic variability in a tropical rainforest area
Acta Agriculturae Slovenica, 2021 Environmental factors causing low seedling emergence often observed in tropical maize (Zea mays L.) are poorly documented. This study was conducted to investigate the effects of weather factors on maize seedling emergence at the Obafemi Awolowo ...
Chris Adegoke FAYOSE +1 more
doaj +1 more source
Microorganisms, 2023 Hormesis, or the hormetic effect, is a dose- or concentration-dependent response characterised by growth stimulation at low concentrations and inhibition at high concentrations.
Samantha J. McCarlie +5 more
doaj +1 more source