Results 31 to 40 of about 24,734 (245)

The Impact of Water Tariffs in the Agricultural Sector on Resource Efficiency and Sustainability: From Theory to Practice [PDF]

open access: yesتحقیقات منابع آب ایران
Water pricing is recognized as an effective tool in reducing demand and achieving the goals of productivity, sustainability and improving the costs of water resources management.
Elham Ebrahimi Sarindizaj
doaj   +1 more source

Biodiesel production and regional development in the Brazilian Savannah: an application of positive mathematical programming

open access: yesInforme Gepec, 2011
A produção de biocombustíveis tem sido um tema muito discutido no Brasil. Em 2004, esse debate levou o país a desenvolver novas políticas e implantar o programa nacional de uso e produção de biodiesel (PNPB), com a intenção de promover o desenvolvimento ...
Marcus Vinicius Alves Finco   +1 more
doaj   +1 more source

Wetlands Retention and Optimal Management of Waterfowl Habitat under Climate Change

open access: yesJournal of Agricultural and Resource Economics, 2014
We develop a positive mathematical programming model to investigate the impact of climate change on land use in the prairie pothole region of western Canada, with particular focus on wetlands retention. We examine the effect of climate change and biofuel
Patrick Withey, G. Cornelis van Kooten
doaj   +1 more source

Synthesis of Modeling, Visualization, and Programming in GeoGebra as an Effective Approach for Teaching and Learning STEM Topics

open access: yesMathematics, 2022
GeoGebra is an interactive geometry, algebra, statistics, and calculus application designed for teaching and learning math, science, and engineering. Its dynamic interface allows its users to accurately and interactively visualize their work, models, and
Rushan Ziatdinov, James R. Valles
doaj   +1 more source

Planning of Aircraft Fleet Maintenance Teams

open access: yesAerospace, 2021
This paper addresses a support information system for the planning of aircraft maintenance teams, assisting maintenance managers in delivering an aircraft on time.
Duarte P. Pereira   +3 more
doaj   +1 more source

Assessing Policies of Irrigation for Groundwater by Positive Mathematical Programming (PMP) Case Study: Eghlid [PDF]

open access: yesپژوهشهای اقتصادی, 2012
In recent decades, due to water crisis, most countries have been more interested in new policies for managing water demand instead of regulating the water supply.
Seyed Nematollah Mousavi   +1 more
doaj  

Environmental Impact of Reducing Chemical Fertilizer Subsidies (Agricultural Crops in Zarandieh, Markazi Province) [PDF]

open access: yesمجله اقتصاد و توسعه کشاورزی
Introduction Many governments provide subsidies to members of the agricultural supply chain to ensure food security, maintain economic stability, and uphold the social benefits associated with the agriculture sector.
S.M.J. Esfahani, E. Barikani
doaj   +1 more source

On Hierarchical Composite Endpoints in Pediatric Cancer Supportive Care: Illustrative Examples From Two Multi‐Center Phase‐III Randomized Clinical Trials

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric supportive care clinical trials often involve multiple clinically important outcomes, complicating trial interpretation. Hierarchical composite endpoints (HCEs) provide a framework to integrate key outcomes according to clinical importance.
Willem H. Collier   +11 more
wiley   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

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