Results 131 to 140 of about 142,022 (341)

Dynamics and Spreading Speed of a Reaction-Diffusion System with Advection Modeling West Nile Virus [PDF]

open access: yesarXiv, 2020
This paper aims to explore the temporal-spatial spreading and asymptotic behaviors of West Nile virus by a reaction-advection-diffusion system with free boundaries, especially considering the impact of advection term on the extinction and persistence of West Nile virus.
arxiv  

The survey of Lake Victoria's fishers [PDF]

open access: yes, 1999
The findings are presented of a survey conducted regarding the fishers of Lake Victoria, which examined the relationships affecting supply flows of raw material on to the market, and also the characteristics of fishing activities and their effects on ...
Abila, R.   +13 more
core  

Evaluation on Biofilter in Recirculating Integrated Multi-Trophic Aquaculture [PDF]

open access: yes, 2013
Integrated multi-trophic aquaculture pays more attention as a bio-integrated food production system that serves as a model of sustainable aquaculture, minimizes waste discharge, increases diversity and yields multiple products.
Asfie, Maidie, S., Sumoharjo
core   +3 more sources

Non-Additive and Asymmetric Allelic Expression of p38 mapk in Hybrid Tilapia (Oreochromis niloticus ♀ × O. aureus ♂)

open access: yesAnimals
Hybridization is a widely used breeding technique in fish species that enhances desirable traits in cultured species through heterosis. However, the mechanism by which hybrids alter gene expression to form heterosis remains unclear.
Zihui Liu   +7 more
doaj   +1 more source

A bicategorical pasting theorem [PDF]

open access: yesChapter 3 of "2-Dimensional Categories" (Oxford University Press, 2021), 2019
We provide an elementary proof of a bicategorical pasting theorem that does not rely on Power's 2-categorical pasting theorem, the bicategorical coherence theorem, or the local characterization of a biequivalence.
arxiv  

Methylation pattern polymorphism of cyp19a in Nile tilapia and hybrids

open access: yesOpen Life Sciences, 2018
AbstractSkewed sex development is prevalent in fish hybrids. However, the histological observation and molecular mechanisms remain elusive. In this study, we showed that the interspecific hybrids of the two fish species,Oreochromis niloticusandOreochromis aureus, had a male ratio of 98.02%.
Jinliang Zhao   +3 more
openaire   +4 more sources

Fish distribution across altitudinal gradients in the Upper Paraguay River Basin: Implications for conservation in the Pantanal region

open access: yesConservation Science and Practice, EarlyView.
This paper approaches the patterns in fish distribution across the altitudinal gradient in the Upper Paraguay River basin, from uplands to the floodplain. We compiled more than 75,000 available fish records and registered 342 fish species and your distribution along altitudinal gradient. Floodplain portion have higher species diversity than headwaters,
Adriana Maria Espinoza Fernando   +11 more
wiley   +1 more source

Tilapia culture in Kuwait: constraints and solutions [PDF]

open access: yes, 2006
Tilapia farming in Kuwait is in its early stages. Slow growth, high production cost and poor demand are the major constraints to the expansion of tilapia culture in Kuwait.
Ridha, M.T.
core  

NILE: Fast Natural Language Processing for Electronic Health Records [PDF]

open access: yesarXiv, 2013
Objective: Narrative text in Electronic health records (EHR) contain rich information for medical and data science studies. This paper introduces the design and performance of Narrative Information Linear Extraction (NILE), a natural language processing (NLP) package for EHR analysis that we share with the medical informatics community.
arxiv  

Homotopy Equivalent Algebraic Structures in Multicategories and Permutative Categories [PDF]

open access: yesTheory and Applications of Categories, Vol. 38, 2022, No. 30, pp 1156-1208, 2022
We show that the free construction from multicategories to permutative categories is a categorically-enriched non-symmetric multifunctor. Our main result then shows that the induced functor between categories of algebras is an equivalence of homotopy theories. We describe an application to ring categories.
arxiv  

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