Results 61 to 70 of about 958,896 (366)

The Relationship Between Road Infrastructure Budgetary Expenditures and Commercial Property Investment Returns. Case Study of Fadikpe Area Minna, Nigeria

open access: yesBaltic Journal of Real Estate Economics and Construction Management, 2020
The paper examines the relationship existing between commercial property investment returns and public capital investment (budgetary expenditures) on road infrastructure in Fadikpe area, Minna (Nigeria) with the aim of determining the degree of impact of
Yakubu Suleiman   +3 more
doaj   +1 more source

Network topology drives population temporal variability in experimental habitat networks

open access: yesPopulation Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu   +3 more
wiley   +1 more source

GIS-Based Vulnerability Analysis for Sustainable Fish Drying Cottage Industry in Southern Province, Sri Lanka

open access: yesInternational Journal of Built Environment and Sustainability, 2023
Dried fish manufacturing is a famous cottage industry in Sri Lanka. Due to various natural and manmade reasons, their locations are not setup in sustainable ways. As a result, industry locations have become more vulnerable.
GithmiAbeysooriya, K.G.P.K. Weerakoon
doaj   +1 more source

The Combinatorial World (of Auctions) According to GARP

open access: yes, 2015
Revealed preference techniques are used to test whether a data set is compatible with rational behaviour. They are also incorporated as constraints in mechanism design to encourage truthful behaviour in applications such as combinatorial auctions. In the
A Fostel   +21 more
core   +1 more source

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

open access: yesPopulation Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

Impact of Physical Learning Environment on University Students’ Academic Engagement in an Online Learning Setting during Covid-19: Evidence from a Sri Lankan University

open access: yesInternational Journal of Built Environment and Sustainability, 2022
The restrictions imposed due to the outbreak of Coronavirus 2019 led to a paradigm shift in terms of the learning arrangements. In such a situation, since curfew was imposed in Sri Lanka, the universities commenced their all-academic
Hashini Thanuksha Wickremasinghe   +1 more
doaj   +1 more source

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

open access: yesPopulation Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

Review of river fisheries valuation in West and Central Africa [PDF]

open access: yes, 2008
This paper provides a review of the valuation of river fisheries in West and Central Africa. It is the general perception that, compared to the biological and ecological aspects of river fisheries, this particular subject area has received relatively ...
Béné, C., Neiland, A.
core  

Valuated groups

open access: yesJournal of Algebra, 1979
AbstractThe notion of a valuated abelian group is introduced and various categorical properties are studied. The pre-abelian category of p-local valuated groups provides an absolute setting for the relative homological algebra of balanced sequences of abelian groups.
Richman, Fred, Walker, Elbert A
openaire   +2 more sources

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

open access: yesPopulation Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva   +6 more
wiley   +1 more source

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