Results 1 to 10 of about 180,307 (268)

Ecological problems and financing environmental protection actions [PDF]

open access: yesCaspian Journal of Environmental Sciences, 2021
Favorable environment is one of the necessary basic elements for survival of mankind, its healthy growth and development. Pure air, clean water and soil are critical to the existence of flora and fauna of the Earth. However, by the development of society,
Sabitova Nadiya Mikhailovna   +2 more
doaj   +1 more source

Laws and regulations enabling and restricting Africa’s vegetable seed sector

open access: yesInternational Journal of Agricultural Sustainability, 2023
Farmers in sub-Saharan Africa do not have much choice of quality seed of vegetable cultivars adapted to local growing conditions and consumer demand. Only a handful of vegetable seed companies invest in local breeding research, while nearly all rely on ...
Katrin A. Kuhlmann   +3 more
doaj   +1 more source

Drivers and challenges of large-scale conversion policies to organic and agro-chemical free agriculture in South Asia

open access: yesInternational Journal of Agricultural Sustainability, 2023
Addressing global environmental and food challenges necessitates holistic approaches that consider environmental, societal, and economic dimensions. This study examines three large-scale organic farming conversion programs and their associated policies ...
Arezou Babajani   +3 more
doaj   +1 more source

Cyberspace Ecologism 4.0”: Between Software Softeners of and Hardware Hardships on the Natural Environment [PDF]

open access: yesAmfiteatru Economic, 2022
Planet Earth, with its plethora of natural (im)balances, has a venerable age of 4.54 billion years; the (industrial) imprint placed by the human species on it, considered to be not negligible, counts of just little over two centuries; while the digital/
Jora, O.D.   +4 more
doaj   +1 more source

Machine Learning Techniques for Improving Self-Consumption in Renewable Energy Communities

open access: yesEnergies, 2020
Renewable Energy Communities consist in an emerging decentralized market mechanism which allows local energy exchanges between end-users, bypassing the traditional wholesale/retail market structure.
Zacharie De Grève   +7 more
doaj   +1 more source

Task-independent metrics of computational hardness predict human cognitive performance

open access: yesScientific Reports, 2022
The survival of human organisms depends on our ability to solve complex tasks in the face of limited cognitive resources. However, little is known about the factors that drive the complexity of those tasks.
Juan Pablo Franco   +4 more
doaj   +1 more source

Deep Reinforcement Learning-Based Voltage Control to Deal with Model Uncertainties in Distribution Networks

open access: yesEnergies, 2020
This paper addresses the voltage control problem in medium-voltage distribution networks. The objective is to cost-efficiently maintain the voltage profile within a safe range, in presence of uncertainties in both the future working conditions, as well ...
Jean-François Toubeau   +4 more
doaj   +1 more source

Identifying the Determinants of Regional Raw Milk Prices in Russia Using Machine Learning

open access: yesAgriculture, 2022
In this study, official data from Russia’s regions for the period from 2015 to 2019 were analysed on the basis of 12 predictor variables in order to explain the regional raw milk price. Model training and hyperparameter optimisation were performed with a
Svetlana Kresova, Sebastian Hess
doaj   +1 more source

Correction to: Adebiyi, Sulaimon Olanrewaju, Oyatoye, Emmanuel Olateju, Amole, Bilqis Bolanle “Improved Customer Churn and Retention Decision Management Using Operations Research Approach” Emering Markets Journal 6 (2): 12-21. 10.5195/emaj.2016.101

open access: yesEmerging Markets Journal, 2017
University affiliations for first author (Adebiyi, Sulaimon Olanrewaju) and third author (Amole, Bilqis Bolanle) were changed. The numbering for Literature Review section was changed from 1 to 2.
Emerging Markets Journal Editors
doaj   +1 more source

Impact of vaccination and non-pharmacological interventions on COVID-19: a review of simulation modeling studies in Asia

open access: yesFrontiers in Public Health, 2023
IntroductionEpidemiological modeling is widely used to offer insights into the COVID-19 pandemic situation in Asia. We reviewed published computational (mathematical/simulation) models conducted in Asia that assessed impacts of pharmacological and non ...
Karan Thakkar   +6 more
doaj   +1 more source

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